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1. |
1. Tên bài báo: A difference of convex functions algorithm for optimal
scheduling and real-time assignment of preventive maintenance jobs on
parallel processors
2. Tên tạp chí: Journal of Industry and Management Optimization (JIMO).
Vol. 10, Iss. 1, pp. 243 - 258
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Mỹ
6. Tác giả thuộc Học viện: 1. Trần Đức Quỳnh
7. Các tác giả bài báo: Le Thi Hoai An, Tran Duc Quynh, Kondo Hloindo
Adjallah
8. Tóm tắt nội dung:
In this paper, we introduce a new approach based on DC (Difference of
Convex functions) Programming and DCA (DC Algorithm) for minimizing the
maintenance cost involving flow-time and tardiness penalties by optimal
scheduling and real-time assignment of preventive maintenance jobs on
parallel processors. The main idea is to divide the horizon considered
into H intervals. The problem is first formulated as a mixed integer
linear problem (MILP) and then reformulated as a DC program. A solution
method based on DCA is used to solve the resulting problem. The
efficiency of DCA is compared with the algorithm based on the new
flow-time and tardiness rule (FTR) given in [1]. The computational
results on several test problems show that the solutions provided by DCA
are better
|
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2. |
1. Tên bài báo: Rough Fuzzy Relation on Two Universal Sets
2. Tên tạp chí: I.J. Intelligent Systems and Applications. Vol. 6. No.
4, P. 49-55. DOI: 10.5815/ijisa.2014.04.05
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Hồng Kông
6. Tác giả thuộc Học viện: 1. Nguyễn Xuân Thảo 2. Nguyễn Văn Định
3. Nguyễn Doãn Đông
7. Các tác giả bài báo: Xuan Thao Nguyen, Van Dinh Nguyen, Doan Dong
Nguyen
8. Tóm tắt nội dung: Fuzzy set theory was introduced by L.A. Zadeh in
1965. Immediately, it has many applications in practice and in building
databases, one of which is the construction of a fuzzy relational
database based on similar relationship. The study of cases of fuzzy
relations in different environments will help us understand its
applications. In this paper, the rough fuzzy relation on Cartesian
product of two universe sets is defined, and then the algebraic
properties of them, such as the max, min, and composition of two rough
fuzzy relations are examined. Finally, reflexive, α-reflexive, symmetric
and transitive rough fuzzy relations on two universe sets are also
defined. |
|
3. |
1. Tên bài báo: Effects of Temporary Migration on Rural households in
the Red River Delta of Vietnam
2. Tên tạp chí: Agricultural marketing journal of Japan. Vol.22, No.4
(serial No.88), page 47-54
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Nhật Bản
6. Tác giả thuộc Học viện: 1. Nguyễn Thị Thủy (KE)
7. Các tác giả bài báo: Nguyen Thi Thuy, TAKANASHI Fumie, TSUJI
Kazunari, IWAMOTO Izumi
8. Tóm tắt nội dung: This study aimed at investigating the effects of
temporary migration on migrants, agricultural production and migrant
households in Red River Delta. A face-to-face direct interview method
was applied to a sample 80 migrants and 80 households of those migrants
from Hai Duong and Thai Binh provinces. We found the results as follows:
Most migrants were males and over 40 years old with low education
levels. They worked temporary jobs as daily worker, housemaid, street
vendor and industrial worker in cities. Young migrants worked as
industrial workers, while older migrants worked as daily labourers.
Those who migrated for fewer years worked as industrial workers in
cities near their hometowns. Those who migrated for many years worked as
daily labourers and housemaids in cities further their hometowns. Also
depending ondifferent purpose of migrant, better occupations bring
better income and remittance even though, brings better finance recourse
in increasing life conditions, it comes with heavier risks and
difficulties in household welfare. The study found that it is easy to
realize positive effects on household livelihood such as income,
expenditure and investment. For migrants, it seems to be an opportunity
for employment with higher salary and working skills. However, negative
effects should be concerned in terms of low job security such as lack of
health and employment insurance, difficulties and risks in family and
society during and after migration. |
|
4. |
1. Tên bài báo: Effects of temporary migration on agricultural
production in Red River Delta, Vietnam
2. Tên tạp chí: Japanese Journal of Food, Agricultural and Resource
Economics. Vol.65, No.1, P.81-94
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Nhật Bản
6. Tác giả thuộc Học viện: 1. Nguyễn Thị Thủy (KE) 2. Nguyễn Duy
Linh
7. Các tác giả bài báo: Nguyen Thi Thuy, Nguyen Duy Linh, IWAMOTO Izumi
8. Tóm tắt nội dung: This study aimed at investigating the effects of
temporary migration on migrants, agricultural production and migrant
households in Red River Delta. A face-to-face direct interview method
was applied to 200 households of those migrants from Hai Duong and Thai
Binh provinces. We found the results as follows: The remittance helped
to increase the amount of income of households but the share of
agricultural income declined significantly. The transfer of family
labour from agriculture to migrant is the main cause of the decrease in
agricultural income. Young migrants had more negative effects on
agricultural production than those old migrants. The longer the
migratory period was the slighter negative effects and the shorter
migration the more negative effects. Agricultural production among
migrants who worked as industrial workers and housemaids decreased
rapidly, whereas it decreased slightly among migrants who worked as
daily labourers, street vendors, or so on. The farther the distance of
migrants from their households, the greater the more negative effects on
agricultural production. Agricultural income decreased dramatically
among households with young migrants, industrial workers and those who
had short migratory years and had the further destination. However older
individuals who migrated for a longer duration and worked as daily
labourers has a slightly decrease in agricultural income. |
|
5. |
1. Tên bài báo: Two-Step Linear Discriminant Analysis for Classification
of EEG Data
2. Tên tạp chí: Data Analysis, Machine Learning and Knowledge Discovery.
Studies in Classification, Data Analysis, and Knowledge Organization, pp
51-59
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Thụy Sỹ
6. Tác giả thuộc Học viện: 1. Nguyễn Hoàng Huy
7. Các tác giả bài báo: Nguyen Hoang Huy, Stefan Frenzel, Christoph
Bandt
8. Tóm tắt nội dung: We introduce a multi-step machine learning approach
and use it to classify electroencephalogram (EEG) data. This approach
works very well for high-dimensional spatio-temporal data with separable
covariance matrix. At first all features are divided into subgroups and
linear discriminant analysis (LDA) is used to obtain a score for each
subgroup. Then LDA is applied to these scores, producing the overall
score used for classification. In this way we avoid estimation of the
high-dimensional covariance matrix of all spatio-temporal features. We
investigate the classification performance with special attention to the
small sample size case. We also present a theoretical error bound for
the normal model with separable covariance matrix, which results in a
recommendation on how subgroups should be formed for the data. |
|
6. |
1. Tên bài báo: Two-level quantile regression forests for bias
correction in range prediction
2. Tên tạp chí: Machine Learning. DOI 10.1007/s10994-014-5452-1
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Anh
6. Tác giả thuộc Học viện: 1. Nguyễn Thị Thủy (CNTT)
7. Các tác giả bài báo: Thanh-Tung Nguyen, Joshua Z. Huang, Thuy Thi
Nguyen
8. Tóm tắt nội dung: Quantile regression forests (QRF), a tree-based
ensemble method for estimation of conditional quantiles, has been proven
to perform well in terms of prediction accuracy, especially for range
prediction. However, the model may have bias and suffer from working
with high dimensional data (thousands of features). In this paper, we
propose a new bias correction method, called bcQRF that uses bias
correction in QRF for range prediction. In bcQRF, a new feature
weighting subspace sampling method is used to build the first level QRF
model. The residual term of the first level QRF model is then used as
the response feature to train the second level QRF model for bias
correction. The two-level models are used to compute bias-corrected
predictions. Extensive experiments on both synthetic and real world data
sets have demonstrated that the bcQRF method significantly reduced
prediction errors and outperformed most existing regression random
forests. The new method performed especially well on high dimensional
data. |
|
7. |
1. Tên bài báo: New and efficient algorithms for transfer prices and
inventory holding policies in two-enterprise supply chains
2. Tên tạp chí: Journal of Global Optimization
3. Tạp chí thuộc:
4. Năm xuất bản: 2014
5. Nơi xuất bản: Anh
6. Tác giả thuộc Học viện: 1. Trần Đức Quỳnh
7. Các tác giả bài báo: Le Thi Hoai An, Tran Duc Quynh
8. Tóm tắt nội dung: We consider a multi-period problem of fair transfer
prices and inventory holding policies in two enterprise supply chains.
This problem was formulated as a mixed integer non-linear program by
Gjerdrum et al. (Eur J Oper Res 143:582–599,2002). Existing global
optimization methods to solve this problem are computationally
expensive. We propose a continuous approach based on difference of
convex functions (DC) programming and DC Algorithms (DCA) for solving
this combinatorial optimization problem. The problem is first
reformulated as a DC program via an exact penalty technique. Afterward,
DCA, an efficient local approach in non-convex programming framework, is
investigated to solve the resulting problem. For globally solving this
problem, we investigate a combined DCA-Branch and Bound algorithm. DCA
is applied to get lower bounds while upper bounds are computed from a
relaxation problem. The numerical results on several test problems show
that the proposed algorithms are efficient: DCA provides a good integer
solution in a short CPU time although it works on a continuous domain,
and the combined DCA-Branch and Bound finds an-optimal solution for
large-scale problems in a reasonable time. |
|
8. |
1. Tên bài báo: Unbiased Feature Selection in Learning Random Forests
for High-Dimensional Data
2. Tên tạp chí: The Scientific World Journal, Hindawi
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Trung Quốc
6. Tác giả thuộc Học viện: 1. Nguyễn Thị Thủy (CNTT)
7. Các tác giả bài báo: Thanh-Tung Nguyen, Joshua Z. Huang and Thuy Thi
Nguyen
8. Tóm tắt nội dung: Random forests (RFs) have been widely used as a
powerful classification method. However, with the randomization in both
bagging samples and feature selection, the trees in the forest tend to
select uninformative features for node splitting. This makes RFs have
poor accuracy when working with high-dimensional data. Besides that, RFs
have bias in the feature selection process where multivalued features
are favored. Aiming at debiasing feature selection in RFs, we propose a
new RF algorithm, called xRF, to select good features in learning RFs
for high-dimensional data. We first remove the uninformative features
using -value assessment, and the subset of unbiased features is then
selected based on some statistical measures. This feature subset is then
partitioned into two subsets. A feature weighting sampling technique is
used to sample features from these two subsets for building trees. This
approach enables one to generate more accurate trees, while allowing one
to reduce dimensionality and the amount of data needed for learning RFs.
An extensive set of experiments has been conducted on 47
high-dimensional real-world datasets including image datasets. The
experimental results have shown that RFs with the proposed approach
outperformed the existing random forests in increasing the accuracy and
the AUC measures. |
|
9. |
1. Tên bài báo: Nonparametric estimation of the density of the
alternative hypothesis in a multiple testing setup. Applications to
local false discovery rate estimation
2. Tên tạp chí: ESAIM: Probability and Statistics
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Pháp
6. Tác giả thuộc Học viện: 1. Nguyễn Văn Hạnh
7. Các tác giả bài báo: Nguyen Van Hanh, Catherine Matias
8. Tóm tắt nội dung: In a multiple testing context, we consider a
semiparametric mixture model with two components where one component is
known and corresponds to the distribution of $p$-values under the null
hypothesis and the other component $f$ is nonparametric and stands for
the distribution under the alternative hypothesis. Motivated by the
issue of local false discovery rate estimation, we focus here on the
estimation of the nonparametric unknown component $f$ in the mixture,
relying on a preliminary estimator of the unknown proportion $\theta$ of
true null hypotheses. We propose and study the asymptotic properties of
two different estimators for this unknown component. The first
estimator is a randomly weighted kernel estimator. We establish an
upper bound for its pointwise quadratic risk, exhibiting the classical
nonparametric rate of convergence over a class of Hölder densities. To
our knowledge, this is the first result establishing convergence as well
as corresponding rate for the estimation of the unknown component in
this nonparametric mixture. The second estimator is a maximum smoothed
likelihood estimator. It is computed through an iterative algorithm, for
which we establish a descent property. In addition, these estimators are
used in a multiple testing procedure in order to estimate the local
false discovery rate. Their respective performances are then compared on
synthetic data. |
|
10. |
1. Tên bài báo: DC programming and DCA for Portfolio Optimization with
Linear and Fixed Transaction costs
2. Tên tạp chí: Intelligent Information and Database Systems. Lecture
Notes in Computer Science
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Thái Lan
6. Tác giả thuộc Học viện: 1. Phạm Việt Nga
7. Các tác giả bài báo: Tao Pham Dinh, Viet Nga Pham, Hoai An Le Thi
8. Tóm tắt nội dung: In this work, a single-period portfolio selection
problem which consists of minimizing the total transaction cost subject
to different types of constraints on feasible portfolios was considered.
The total transaction cost function is separable and discontinuous. This
problem is nonconvex and very hard to solve. First, by using additional
binary variables, we transform it into a mixed zero-one program and then
investigate a DC (Difference of Convex functions) programming framework
for designing solution methods. Two approaches are developed: DCA (DC
Algorithm) and a combination of DCA and Branch & Bound technique.
Computational experiments are reported to demonstrate high efficiency
and computational inexpensiveness of DCA, which provides good
approximate global solutions. |
|
11. |
1. Tên bài báo: Support – intuitionistic fuzzy set : a new concept for
soft computing
2. Tên tạp chí: International Journal of Intelligent Systems and
Applications (IJISA)
3. Tạp chí thuộc:
4. Năm xuất bản: 2014
5. Nơi xuất bản: Hồng Kông
6. Tác giả thuộc Học viện: 1. Nguyễn Văn Định 2. Nguyễn Xuân Thảo
7. Các tác giả bài báo: Xuan Thao Nguyen, Van Dinh Nguyen
8. Tóm tắt nội dung: Today, soft computing is a field that is used a lot
in solving real-world problems, such as problems in economics, finance,
banking... With the aim to serve for solving the real problem, many new
theories and/or tools which were proposed, improved to help soft
computing used more efficiently. We can mention some theories as fuzzy
sets theory (L. Zadeh, 1965), intuitionistic fuzzy set (K Atanasov,
1986). In this paper, we introduce a new notion of
support-intuitionistic fuzzy (SIF) set, which is the combination a
intuitionistic fuzzy set with a fuzzy set. So, SIF set is a directly
extension of fuzzy set and intuitionistic fuzzy sets (Atanassov). Then,
we define some operators on support-intuitionistic fuzzy sets, and
investigate some properties of these operators. |
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12. |
1. Tên bài báo: Spectral monodromy of non selfadjoint operators
2. Tên tạp chí: J. Math. Phys
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Mỹ
6. Tác giả thuộc Học viện: 1. Phan Quang Sáng
7. Các tác giả bài báo: Phan Quang Sáng
8. Tóm tắt nội dung: In the present paper, we build a combinatorial
invariant, called the “spectral monodromy” from the spectrum of a single
(non-self-adjoint) h-pseudodifferential operator with two degrees of
freedom in the semi-classical limit. Our inspiration comes from the
quantum monodromy defined for the joint spectrum of an integrable system
of n commuting self-adjoint h-pseudodifferential operators, given by S.
Vu Ngoc [“Quantum monodromy in integrable systems,” Commun. Math. Phys.
203(2), 465–479 (1999)]. The first simple case that we treat in this
work is a normal operator. In this case, the discrete spectrum can be
identified with the joint spectrum of an integrable quantum system. The
second more complex case we propose is a small perturbation of a
self-adjoint operator with a classical integrability property. We show
that the discrete spectrum (in a small band around the real axis) also
has a combinatorial monodromy. The main difficulty in this case is that
we do not know the description of the spectrum everywhere, but only in a
Cantor type set. In addition, we also show that the corresponding
monodromy can be identified with the classical monodromy, defined by J.
Duistermaat [“On global action-angle coordinates,” Commun. Pure Appl.
Math. 33(6), 687–706 (1980)]. |
|
13. |
1. Tên bài báo: Carleman estimate for infinite cylindrical quantum
domains and application to inverse problems
2. Tên tạp chí: Inverse Problems
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Anh
6. Tác giả thuộc Học viện: 1. Phan Quang Sáng
7. Các tác giả bài báo: Y. Kian, Q. S. Phan, E. Soccorsi
8. Tóm tắt nội dung: We consider the inverse problem of determining the
time-independent scalar potential q of the dynamic Schrödinger equation
in an infinite cylindrical domain Ω, from one Neumann boundary
observation of the solution. Assuming that q is known outside some fixed
compact subset of Ω, we prove that q may be Lipschitz stably retrieved
by choosing the Dirichlet boundary condition of the system suitably.
Since the proof is by means of a global Carleman estimate designed
specifically for the Schrödinger operator acting in an unbounded
cylindrical domain, the measurement of the Neumann data is performed on
an infinitely extended subboundary of the cylinder. |
|
14. |
1. Tên bài báo: On Efficient Estimators of the Proportion of True Null
Hypotheses in a Multiple Testing Setup
2. Tên tạp chí: Scandinavian Journal of Statistics
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Mỹ
6. Tác giả thuộc Học viện: 1. Nguyễn Văn Hạnh
7. Các tác giả bài báo: Van Hanh Nguyen and Catherine Matias
8. Tóm tắt nội dung: We consider the problem of estimating the
proportion θ of true null hypotheses in a multiple testing context. The
setup is classically modelled through a semiparametric mixture with two
components: a uniform distribution on interval [0,1] with prior
probability θ and a non‐parametric
density f. We discuss asymptotic efficiency results and establish that
two different cases occur whether f vanishes on a non‐empty
interval or not. In the first case, we exhibit estimators converging at
a parametric rate, compute the optimal asymptotic variance and
conjecture that no estimator is asymptotically efficient (i.e. attains
the optimal asymptotic variance). In the second case, we prove that the
quadratic risk of any estimator does not converge at a parametric rate.
We illustrate those results on simulated data. |
|
15. |
1. Tên bài báo: Radiation damage in urania crystals implanted with
low-energy ions
2. Tên tạp chí: Nuclear Instruments and Methods in Physics Research
Section B: Beam Interactions with Materials and Atoms
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Pháp
6. Tác giả thuộc Học viện: 1. Nguyễn Tiến Hiển
7. Các tác giả bài báo: Tien Hien Nguyen, Frédérico Garrido, Aurélien
Debelle, Stamatis Mylonas, Lech Nowicki, Lionel Thomé, Jérôme Bourçois,
Jérémy Moeyaert
8. Tóm tắt nội dung: Implantations with low-energy ions (470-keV Xe and
500-keV La with corresponding ion range Rp ∼ 85
nm and range straggling ΔRp ∼ 40
nm) have been performed to investigate both radiation and chemical
effects due to the incorporation of different species in UO2 (urania)
crystals. The presence of defects was monitored in situ after each
implantation fluence step by the RBS/C technique. Channelling data were
analysed afterwards by Monte-Carlo simulations with a model of defects
involving (i) randomly displaced atoms (RDA) and (ii) distorted rows,
i.e. bent channels (BC). While increasing the ion fluence, the
accumulation of RDA leads to a steep increase of the defect fraction in
the range from 4 to 7 dpa regardless of the nature of bombarding ions
followed by a saturation plateau over a large dpa range. A clear
difference of 6% in the yield of saturation plateaus between irradiation
with Xe and La ions was observed. Conversely, the evolutions of the
fraction of BC showed a similar regular increase with increasing ion
fluence for both ions. Moreover, this increase is shifted to a larger
fluence in comparison to the sharp increase step of RDA. This phenomenon
indicates a continuous structural modification of UO2 crystals under
irradiation unseen by the measurement of RDA. |
|
16. |
1. Tên bài báo: Weed biodiversity and rice production during the
irrigation rehabilitation process in Cambodia
2. Tên tạp chí: Agriculture, ecosystems and environment
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Nhật Bản
6. Tác giả thuộc Học viện: 1. Nguyễn Thị Bích Yên
7. Các tác giả bài báo: Kamoshita A, Araki Y, Nguyen Thi Bich Yen
8. Tóm tắt nội dung: A phytosociological survey of weed species
was conducted during the rainy season in 2008 in paddy
fields at different distances from the main irrigation canal
in the Kamping Puoy Irrigation Rehabilitation Area in
northwestern Cambodia. The spatial variation in water depth
was large between upstream (shallower) and downstream (deeper)
paddies, which resulted in different weed, with many
Poaceae and Cyperaceae species observed on levees in
upstream and aquatic herbs in downstream paddies. Chemical
fertilizer input levels were generally small and average
rice yield was relatively low (ca. 2.3 t/ha). Traditional
and less intensive weed management options such as hand
weeding, mid-season tillage, and post-harvest straw burning
were common, while the herbicide 2,4-D was also widely
used. Weed species in the paddy ecosystem used by villagers
included Ipomoea aquatica , Nymphaea nouchali , and Monochoria
vaginalis (occasional, for human consumption) and graminoid
species (frequent, for cattle feed in addition to rice
straw). Greater inorganic fertilizer input was associated
with a lower diversity of weed species, but grain yield
and weed diversity indices had no negative relation among
different locations. This survey revealed relatively small
extent of intensification in the irrigation rehabilitation
area in Cambodia, which led to high weed diversity,
including numerous plant species available for use to
support farmers’ livelihoods in the area. |
|
17. |
1. Tên bài báo: Fully Automated Non-rigid Segmentation with Distance
Regularized Level Set Evolution Initialized and Constrained by
Deep-structured Inference
2. Tên tạp chí: IEEE International Conference on Computer Vision and
Pattern Recognition
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Australia
6. Tác giả thuộc Học viện: 1. Ngô Tuấn Anh
7. Các tác giả bài báo: Tuan Anh Ngo, Gustavo Carneiro
8. Tóm tắt nội dung: We propose a new fully automated non-rigid
segmentation
approach based on the distance regularized level set
method that is initialized and constrained by the results of
a structured inference using deep belief networks. This recently
proposed level-set formulation achieves reasonably
accurate results in several segmentation problems, and has
the advantage of eliminating periodic re-initializations during
the optimization process, and as a result it avoids numerical
errors. Nevertheless, when applied to challenging
problems, such as the left ventricle segmentation from short
axis cine magnetic ressonance (MR) images, the accuracy
obtained by this distance regularized level set is lower than
the state of the art. The main reasons behind this lower
accuracy are the dependence on good initial guess for the
level set optimization and on reliable appearance models.
We address these two issues with an innovative structured
inference using deep belief networks that produces reliable
initial guess and appearance model. The effectiveness
of our method is demonstrated on the MICCAI 2009 left
ventricle segmentation challenge, where we show that our
approach achieves one of the most competitive results (in
terms of segmentation accuracy) in the field.
|
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18. |
1. Tên bài báo: Detection of porcine reproductive and respiratory
syndrome virus in oral fluid from naturally infected pigs in a breeding
herd.
2. Tên tạp chí: Journal of veterinary science, 15(3), 361-367.
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Hàn Quốc
6. Tác giả thuộc Học viện: 1. Nguyễn Thị Trang 2. Nguyễn Thị Lan
(KTY) 3. Nguyễn Thị Hương Giang (TY)
7. Các tác giả bài báo: Nguyen Thi Trang, T. Hirai, Yamamoto T., Matsuda
M., Okumura N., Nguyen Thi Huong Giang, Nguyen Thi Lan, Yamaguchi R
8. Tóm tắt nội dung: The objectives of the present study were to
evaluate the anatomic localization of porcine reproductive and
respiratory syndrome virus (PRRSV) in naturally infected pigs and to
determine whether oral fluid could be used to detect the virus in
infected animals. Two sows, seven 2-month-old grower pigs, and 70
6-month-old gilts were included in this study. PRRSV in sera and oral
fluid were identified by nested reverse transcription PCR (nRT-PCR)
while lung, tonsil, and tissue associated with oral cavity were
subjected to nRT-PCR, immunohistochemistry, and in situ hybridization.
In sows, PRRSV was identified in oral fluid and tonsils. PRRSV was also
detected in oral fluid, tonsils, salivary glands, oral mucosa, and lungs
of all seven grower pigs. However, viremia was observed in only two
grower pigs. Double staining revealed that PRRSV was distributed in
macrophages within and adjacent to the tonsillar crypt epithelium. In
gilts, the North American type PRRSV field strain was detected 3 to 8
weeks after introducing these animals onto the farm. These results
confirm previous findings that PRRSV primarily replicates in tonsils and
is then shed into oral fluid. Therefore, oral fluid sampling may be
effective for the surveillance of PRRSV in breeding herds. |
|
19. |
1. Tên bài báo: Generation of hydrogen sulfide in the deepest part of a
reservoir under anoxic water conditions
2. Tên tạp chí: Paddy and Water Environment
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Nhật Bản
6. Tác giả thuộc Học viện: 1. Đỗ Thủy Nguyên
7. Các tác giả bài báo: Nguyen Thuy Do, Yuichiro Yoshimura, Masayoshi
Harada, Kazuaki Hiramatsu
8. Tóm tắt nội dung: The generation of hydrogen sulfide in a reservoir
can be characterized by a massive influx of organic matter, manifest
thermal stratification, and an extreme anoxic state specifically at the
hypolimnion layer in summer. It has been reported that in this deep
layer of a thermally stratified water body, where dissolved oxygen is
depleted and redox potential falls sharply below the value of zero, the
prolonged oxygen-free period and negative redox potential may potentiate
the production of toxic hydrogen sulfide. The main aim of this study was
to simulate the varying concentration of hydrogen sulfide at the deepest
part of the reservoir based on intensive monitoring of water quality
parameters. A one-dimensional hydraulic ecosystem model was applied to
simulate vertical distribution of dissolved oxygen (DO) continuously in
time. Based on the simulated DO, the length of continuous oxygen-free
state in the deepest layer was specified and then utilized to estimate
the temporal changes of oxidation–reduction potential (ORP) using a
polynomial regression model. Finally, a linear regression model for
hydrogen sulfide was fitted from the observed ORP, based on which, the
temporal changes of hydrogen sulfide concentration were modeled using
the simulated ORP. The introduction of several calculations gave good
simulated results of hydrogen sulfide concentration, and this approach
can be considered useful for predictive and explanatory purposes in
further research investigating toxic hydrogen sulfide at the hypolimnion
of the reservoir. |
|
20. |
1. Tên bài báo: Classifying and mapping the urban transition in Vietnam
2. Tên tạp chí: Applied Geography
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Anh
6. Tác giả thuộc Học viện: 1. Trần Đức Viên 2. Nguyễn Thanh Lâm
7. Các tác giả bài báo: S. Saksena, J. Fox, J. Spencer, M. Castrence, M.
DiGregorio, M. Epprecht, N. Sultana, M. Finucane, Lam Nguyen, Tran Duc
Vien
8. Tóm tắt nội dung: The urban transition almost always involves
wrenching social adjustment as small agricultural communities are forced
to adjust rapidly to industrial ways of life. Large-scale in-migration
of young people usually from poor regions, creates enormous demand and
expectations for community and social services. One immediate problem
planners face in approaching this challenge is how to define,
differentiate and map what is rural, urban, and transitional (i.e.,
peri-urban). This project established an urban classification for Vietnam
by using national census and remote sensing data to identify and map the
smallest administrative units for which data are collected as rural,
peri-urban, urban, or urban core. We used both natural and human factors
in the quantitative model: income from agriculture, land under
agriculture and forests, houses with modern sanitation, and the
Normalized Difference Vegetation Index Model results suggest that in
2006, 71% of Vietnam’s 10,891 communes were rural, 18% peri-urban, 3%
urban, and 4% urban core. Of the communes our model classified as
peri-urban, 61% were classified by the Vietnamese government as rural.
More than 7% of Vietnam’s land area can be classified as peri-urban and
approximately 13% of its population (more than 11 million people) lives
in peri-urban areas. We identified and mapped three types of peri-urban
places: communes in the periphery of large towns and cities; communes
along highways; and communes associated with provincial administration
or home to industrial, energy, or natural resources projects (e.g.,
mining). We validated this classification based on ground observations,
analyses of multi-temporal night-time lights data, and an examination of
road networks. The model provides a method for rapidly assessing the
rural-urban nature of places to assist planners in identifying rural
areas undergoing rapid change with accompanying needs for investments in
building, sanitation, road infrastructure, and government institutions. |
|
21. |
1. Tên bài báo: Plant genetic diversity in farming systems and poverty
alleviation In Vietnam’s northern mountain region
2. Tên tạp chí: Shifting Cultivation and Environmental Change:
Indigenous People, Agriculture and Forest Conservation
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Anh
6. Tác giả thuộc Học viện: 1. Nguyễn Thanh Lâm 2. Trần Đức Viên 3.
Vũ Văn Liết
7. Các tác giả bài báo: Tran Duc Vien, Vu Van Liet and Nguyen Thanh Lam
8. Tóm tắt nội dung: The plant genetic resources of Vietnam’s northern
mountain region are still rich and diverse. These local varieties are
marvellously adapted to the ecological and cultural complexity of the
locality. This biodiversity enhances agro-ecosystem sustainability under
marginal upland conditions. However, this plant genetic diversity is
under heavy pressure from genetic erosion caused by an increasing
population, changes in farming practices, policy measures aimed at
limiting swidden farming, development programmes for poverty alleviation
and markets. We have discussed the negative effects of plant-diversity
loss on food security, poverty, soil erosion and yield reduction,
diseases and risks. We believe conservation and improvement of local
varieties can help to ensure food security for local people and also
play an important role in environmental protection and conservation of
biodiversity generally. Local food-plant varieties need to be
collected, conserved, classified, and evaluated for their usefulness
in breeding new varieties and reinvigorating old ones in order to
support livelihoods in marginal areas. |
|
22. |
1. Tên bài báo: Nitrogen recovery and downslope translocation in maize
hillside cropping as affected by soil conservation
2. Tên tạp chí: Nutrient Cycling in Agroecosystems
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Hà Lan
6. Tác giả thuộc Học viện: 1. Trần Đức Viên
7. Các tác giả bài báo: Vu Dinh Tuan, Thomas Hilger, Tran Duc Vien,
Georg Cadisch
8. Tóm tắt nội dung: We conducted a field experiment on a 53 %-slope in
Northwest Vietnam using 15N-labelled urea to trace its fate in maize
(Zea mays) under intensive tillage and fertilization (T1, control)
versus maize with Panicum maximum grass barriers (T2), under minimum
tillage (MT) with Arachis pintoi as cover crop (T3) or relay cropped
with Phaseolus calcaratus (T4). 15N-labelled urea was applied to one
maize row at the top of each plot one year after trial establishment. At
harvest, 21.6 % of the labelled 15N were recovered by maize in T1, 8.9 %
in T2, 29 % in T3, and 30.9 % in T4. In T2, maize and P. maximum
competed heavily for N with a total 38.1 % of 15N recovered in barriers.
Less than 6 % of 15N applied was found in maize rows along the slope
regardless of the treatment. MT reduced 15N translocation to deeper soil
layers (40–80 cm), indicating a safety net function. Less than 0.1 kg N
ha−1 of applied 15N reached the collection devices at the bottom of
plots; the majority of added 15N was intercepted by plants along the
slope. Current farming practice (T1) induced a negative N balance of
−142 kg N ha−1 in which residue burning and erosion were major pathways
for N losses. Reduced N losses by erosion in T2 contributed to a less
negative N balance as compared to T1. Positive N balances of MT
treatments were associated with strongly reduced N losses by erosion and
abandonment of burning residues, indicating a viable option for hillside
cropping. |
|
23. |
1. Tên bài báo: Application of a simple genetic algorithm for the
calibration of aquatic ecosystem model of an agricultural pond
2. Tên tạp chí: Paddy and Water Environment. Vol. 12, Iss. 1, pp 1-15
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Mỹ
6. Tác giả thuộc Học viện: 1. Đỗ Thủy Nguyên
7. Các tác giả bài báo: Nguyen Do Thuy, Masayoshi Harada, Kazuaki
Hiramatsu, Shinji Fukuda
8. Tóm tắt nội dung: In this study, we aim to construct and apply a
simple genetic algorithm (SGA) to optimize a large number of parameters
of an one-box ecosystem model. The ecosystem model was used to simulate
the water quality over a 6-month period based on the new observation
data in an agricultural pond which was strongly influenced by a green
algal bloom. Of the 54 parameters in this model, 10 important parameters
were initially selected for the optimization, with one other parameter
being subsequently added. The SGA program was used for three purposes,
namely (1) to narrow the search space for the 10 parameters, (2) to
assess the influence of the additional parameter on the optimization
results, and (3) to observe the distribution and convergence of the
optimized values for the 10 selected parameters. In the next step, new
ranges for these 10 important parameters were assigned and the SGA was
applied to all 54 model parameters to seek the optimum value for each
parameter. The modeling approach and the results presented here provide
valuable and reliable evidences of the optimum parameters for further
simulations to clarify the mechanisms of the biochemical processes in
the water. |
|
24. |
1. Tên bài báo: Soil moisture regimes under point irrigation
2. Tên tạp chí: Agricultural Water Management
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Hà Lan
6. Tác giả thuộc Học viện: 1. Hoàng Thái Đại
7. Các tác giả bài báo: Vaclav Kuklik, Thai Dai Hoang
8. Tóm tắt nội dung: The main objective of this paper is determination
of principal relationships influencing the distribution of moisture
content in a soil profile under an emitter in point irrigation. Research
was carried out by conducting field experiments. They determined
geometry of wetted soil volume in a soil profile under point irrigation.
Infiltration of water from a single emitter and the resulting spatial
distribution is a typical feature of localized irrigation technology.
The field experiments using different emitter discharges and various
periods of irrigation on haplic Luvisol (ha LV) (ALFISOLS Udalfs) on
loess were conducted in a soil profile 1 m deep. |
|
25. |
1. Tên bài báo: Community Monitoring of Carbon Stocks for REDD+: Does
Accuracy and Cost Change over Time?
2. Tên tạp chí: Forests
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Hà Lan
6. Tác giả thuộc Học viện: 1. Trần Nguyên Bằng
7. Các tác giả bài báo: Søren Brofeldt, Ida Theilade, Neil D. Burgess,
Finn Danielsen, Michael K. Poulsen, Teis Adrian, Tran Nguyen Bang, Arif
Budiman, Jan Jensen, Arne E. Jensen, Yuyun Kurniawan, Simon B. L.
Lægaard, Zhao Mingxu, Meine van Noordwijk, Subekti Rahayu, Ervan Rutis
8. Tóm tắt nội dung: Reducing emissions from deforestation and forest
degradation in developing countries, and the role of conservation,
sustainable management of forests, and enhancement of forest carbon
stocks in developing countries (REDD+) is a potentially powerful
international policy mechanism that many tropical countries are working
towards implementing. Thus far, limited practical consideration has been
paid to local rights to forests and forest resources in REDD+ readiness
programs, beyond noting the importance of these issues. Previous studies
have shown that community members can reliably and cost-effectively
monitor forest biomass. At the same time, this can improve local
ownership and forge important links between monitoring activities and
local decision-making. Existing studies have, however, been static
assessments of biomass at one point in time. REDD+ programs will require
repeated surveys of biomass over extended time frames. Here, we examine
trends in accuracy and costs of local forest monitoring over time. We
analyse repeated measurements by community members and professional
foresters of 289 plots over two years in four countries in Southeast
Asia. This shows, for the first time, that with repeated measurements
community members' biomass measurements become increasingly accurate and
costs decline. These findings provide additional support to available
evidence that community members can play a strong role in monitoring
forest biomass in the local implementation of REDD+. |
|
26. |
1. Tên bài báo: Role of Urbanization, land-use diversity, and livestock
intensification in Zoonotic Emerging infectious diseases
2. Tên tạp chí: East-West Center Working Papers: Environment,
Population, and Health Series
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Mỹ
6. Tác giả thuộc Học viện: 1. Trần Đức Viên 2. Nguyễn Thanh Lâm
7. Các tác giả bài báo: Sumeet Saksena, Jefferson Fox, Michael Epprecht,
Chinh Tran, Miguel Castrence, Duong Nong, James Spencer, Nguyen Lam,
Melissa Finucane, Tran Duc Vien, and Bruce Wilcox
8. Tóm tắt nội dung: Emerging infectious diseases (EIDs) continue to
significantly threaten human and animal health. While scientists have
made progress in identifying proximate driving forces and causal
mechanisms of disease emergence, the role of distant factors is most
poorly understood. This article focuses on analyzing statistical
associations between highly pathogenic avian influenza (HPAI) H5N1 and
urbanization, land-use diversification, and poultry intensification in
Viet Nam. A special form of the urban transition-peri-urbanization-was
hypothesized as being accociated with “hot-spots”, which combined these
new proposed risk factors with previously known natural and human risk
factors, had a far higher predictive performance compared to published
models for the first two epidemiological waves in Vietnam. We found that
when relevant risk factors are taken into account, urbanization is
generally not a significant independent risk factor. However,
urbanization spatially combines other risk factors leading to peri-urban
places being the most likely ‘hot-spots’. The work highlights that
peri-urban areas have the highest levels of chicken densities, duck and
geese flock size diversities, and fraction of land under rice or
aquaculture compared to rural and urban areas. Land-use diversity, which
has previously never been studied in the context of HPA H5N1, was found
to be a significant risk factor. Places where intensive and extensive
forms of poultry production are collocated were found to be at greater
risk. |
|
27. |
1. Tên bài báo: Modelling Climate Change Impacts on the Seasonality of
Water Resources in the Upper Ca River Watershed in Southeast Asia
2. Tên tạp chí: The Scientific World Journal
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Mỹ
6. Tác giả thuộc Học viện: 1. Phạm Quý Giang 2. Trần Quốc Vinh
7. Các tác giả bài báo: Pham Quy Giang, Kosuke Toshiki, Masahiro Sakata,
Shoichi Kunikane, and Tran Quoc Vinh
8. Tóm tắt nội dung: The impact of climate change on the seasonality of
water resources in the Upper Ca River Watershed in mainland Southeast
Asia was assessed using downscaled global climate models coupled with
the SWAT model. The results indicated that temperature and
evapotranspiration will increase in all months of future years. The area
could warm as much as 3.4∘C
in the 2090s, with an increase of annual evapotranspiration of up to 23%
in the same period. We found an increase in the seasonality of
precipitation (both an increase in the wet season and a decrease in the
dry season). The greatest monthly increase of up to 29% and the greatest
monthly
decrease of up to 30% are expected in the 2090s. As a result, decreases
in dry season discharge and increases in wet season discharge are
expected, with a span of ±25% for the highest monthly changes in the
2090s. This is expected to exacerbate the problem of seasonally uneven
distribution of water resources: a large volume of water in the wet
season and a scarcity of water in the dry season, a pattern that
indicates the possibility of more frequent floods in the wet season and
droughts in the dry season. |
|
28. |
1. Tên bài báo: Modeling the Seasonal Response of Sediment Yield to
Climate Change in the Laos-Vietnam Transnational Upper Ca River
Watershed
2. Tên tạp chí: EnvironmentAsia. Vol. 7, No. 2, Pp 152-162
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Thái Lan
6. Tác giả thuộc Học viện: 1. Phạm Quý Giang
7. Các tác giả bài báo: Pham Quy Giang, Kosuke Toshiki, Masahiro Sakata
and Shoichi Kunikane
8. Tóm tắt nội dung: Changes in stream sediment yield impact material
fluxes, water quality, aquatic geochemistry, stream morphology, and
aquatic habitats. Quantifying sediment yield is important for predicting
watershed erosion and understanding sediment
transport processes. In the context of a changing climate, this is
important for the management and conservation of soil and water to cope
with the effects of increasingly severe climate conditions that are
likely to occur in the near future. This study aims to predict seasonal
trends in sediment yield under climate change impacts in the
Laos-Vietnam transnational Upper Ca River Watershed. The SWAT model was
used for hydrological simulation, coupled with future climate
projections under three IPCC emission scenarios, B1, B2, and A2. We
found an increase in the seasonality of sediment yield due to increases
in the seasonality of both rainfall and runoff. However, the increase of
sediment yield in the wet season appeared more
significant than its decrease in the dry season, due to more significant
increases in rainfall as well as runoff in that season compared to
decreases in these factors in the dry season. Consequently, annual
sediment yield is predicted to increase, with
a rate ranging from 12.1% to 16.5% by the end of this century, depending
on emission scenario. The seasonal sensitivity of sediment yield to
climate change found in this study is expected to be useful in
collaborative management initiatives related
to soil and water resources in the watershed. |
|
29. |
1. Tên bài báo: Study on Plasma Nitriding Technology Imposed to Several
Machine Parts Made of 40CrMo Steel
2. Tên tạp chí: AETA 2013: Recent Advances in Electrical Engineering and
Related Sciences. Lecture Notes in Electrical Engineering
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Đức
6. Tác giả thuộc Học viện: 1. Đào Quang Kế
7. Các tác giả bài báo: Luc Van Thuong, Dao Duy Trung, Hoang Van Chau,
Hoang Minh Thuan, Dao Quang Ke
8. Tóm tắt nội dung: Plasma nitriding has been considered as the modern
technology, enabling to form the nitriding layer on the surface which
owns the high wear resistance, corrosion protection and enhances the
fatigue resistance of the machine parts. This article presents the
researches on plasma nitriding and the effects of several technology
parameters on the quality of nitriding layer. This research results have
been applied on a number of specific 40CrMo steel machine parts, such as
hydraulic pumping gears, GN91 tractor transmission gears... |
|
30. |
1. Tên bài báo: Cost Monitoring To Promote The Fresh Milk Chain In
Northern Vietnam
2. Tên tạp chí: LAP Lambert Academic Publishing
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Hà Lan
6. Tác giả thuộc Học viện: 1. Bùi Thị Nga
7. Các tác giả bài báo: Bui Thi Nga
8. Tóm tắt nội dung: In Vietnam, the consumption of dairy products has
increased dramatically in recent years due to rising incomes. To meet
this growing demand, and reduce imports, the Vietnamese Government has
encouraged milk production. In this context, our research is primarily
interested in the distribution of value added among the actors within
the fresh milk chain observed in the province of Son La. |
|
31. |
1. Tên bài báo: Factors Influencing Milk Consumption of Rural Households
in Northern Vietnam
2. Tên tạp chí: Greener Journal of Business and Management Studies. Vol.
4 (2), pp. 031-040
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Australia
6. Tác giả thuộc Học viện: 1. Trần Quang Trung 2. Đỗ Quang Giám 3.
Vũ Thị Hải 4. Lại Phương Thảo 5. Ngô Thị Thu Hằng 6. Lê Thị Kim Sơn
7. Bùi Thị Mai Linh
7. Các tác giả bài báo: Tran Quang Trung, Do Quang Giam, Vu Thi Hai, Lai
Phuong Thao, Ngo Thi Thu Hang, Le Thi Kim Son, and Bui Thi Mai Linh
8. Tóm tắt nội dung: The aims of this research were to identify the
factors affecting milk consumption of rural households. As well as to
determine the effects of these factors on the rural household’s
intention to consume milk. A random sample of 514 rural households in
northern Vietnam was selected to collect data on their milk consumption.
Methodologically, statistical analysis was used to identify the
preferences of rural households in purchasing dairy products and the
two-step econometric technique was applied to measure the effects of the
socio-economic and demographic factors and characteristics of milk
market on milk consumption of the rural households. The integrating
results from the two models showed that household’s income and
convenience in milk buying have strongly positive effects on milk
consumption of the rural households. At the lighter level, numbers of
children and elders in the rural household also have positive effects on
the probability of milk purchasing of rural households and milk
expenditure while educational level was only found to affect milk
expenditure of the rural households. In contrast, age of the rural
household head and the importance of milk price have significant
negative effects on both decisions of milk consumption of the rural
households, decision to buy milk and level of milk expenditure. Finally,
several implications of this study highlighted the contribution of the
research to theory by enriching body of literature and marketing
perspective by showing the worthy bases for the companies to determine
their target rural consumers and improve their products |
|
32. |
1. Tên bài báo: Impact of quality attributes and marketing factors on
prices for indigenous pork in Vietnam to promote sustainable utilization
of local genetic resources
2. Tên tạp chí: Livestock Research for Rural Development. Vol. 26, No. 7
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Colombia
6. Tác giả thuộc Học viện: 1. Đỗ Thị Mỹ Hạnh 2. Trần Hữu Cường 3.
Nguyễn Văn Phương (KE)
7. Các tác giả bài báo: N V Phuong, D T M Hanh, T H Cuong, A Markemann,
A Valle Zárate and M Mergenthaler
8. Tóm tắt nội dung: Our study demonstrates that value added within the
fresh milk chain was unequally distributed among actors in the chain in
the bias orientation to the non-farmers (non-producer). The key feature
in the chain was the dairy farmers, but they were also the most
vulnerable actors of the chain. Given the balance of power among the
actors, the most appropriate method to promote the added value for dairy
producers is to help a better control on their production costs by
improving the management at the dairy farm. |
|
33. |
1. Tên bài báo: New and efficient algorithms for transfer prices and
inventory holding policies in two-enterprise supply chains, to appear in
Journal of Global Optimization (JOGO)
2. Tên tạp chí: Journal of Global Optimization (JOGO), Vol. 60, Iss. 1
pp.5-24
3. Tạp chí thuộc:
4. Năm xuất bản: 2014
5. Nơi xuất bản: Mỹ
6. Tác giả thuộc Học viện: 1. Trần Đức Quỳnh
7. Các tác giả bài báo: Le Thi Hoai An, Tran Duc Quynh
8. Tóm tắt nội dung: We consider a multi-period problem of fair transfer
prices and inventory holding policies in two enterprise supply chains.
This problem was formulated as a mixed integer non-linear program by
Gjerdrum et al. (Eur J Oper Res 143:582–599, 2002). Existing global
optimization methods to solve this problem are computationally
expensive. We propose a continuous approach based on difference of
convex functions (DC) programming and DC Algorithms (DCA) for solving
this combinatorial optimization problem. The problem is first
reformulated as a DC program via an exact penalty technique. Afterward,
DCA, an efficient local approach in non-convex programming framework, is
investigated to solve the resulting problem. For globally solving this
problem, we investigate a combined DCA-Branch and Bound algorithm. DCA
is applied to get lower bounds while upper bounds are computed from a
relaxation problem. The numerical results on several test problems show
that the proposed algorithms are efficient: DCA provides a good integer
solution in a short CPU time although it works on a continuous domain,
and the combined DCA-Branch and Bound finds an ϵϵ-optimal solution for
large-scale problems in a reasonable time. |
|
34. |
1. Tên bài báo: Optimizing a multi-stage production/inventory system
with bottleneck by DC programming based approaches
2. Tên tạp chí: Computational Optimization and Applications, Vol. 57,
Iss. 2, pp 441-468
3. Tạp chí thuộc:
4. Năm xuất bản: 2014
5. Nơi xuất bản: Ấn Độ
6. Tác giả thuộc Học viện: 1. Trần Đức Quỳnh
7. Các tác giả bài báo: Le Thi Hoai An, Tran Duc Quynh
8. Tóm tắt nội dung: This paper deals with optimizing the cost of set
up, transportation and inventory of a multi-stage production system in
presence of bottleneck. The considered optimization model is a mixed
integer nonlinear program. We propose two methods based on DC
(Difference of Convex) programming and DCA (DC Algorithm)—an innovative
approach in nonconvex programming framework. The mixed integer nonlinear
problem is first reformulated as a DC program and then DCA is developed
to solve the resulting problem. In order to globally solve the problem,
we combine DCA with a Branch and Bound algorithm (BB-DCA). A convex
minorant of the objective function is introduced. DCA is used to compute
upper bounds while lower bounds are calculated from a convex relaxation
problem. The numerical results compared with those of COUENNE
(http://www.coin-or.org/download/binary/Couenne/), a solver for mixed
integer nonconvex programming, show the rapidity and the ϵ-globality of
DCA in almost cases, as well as the efficiency of the combined
DCA-Branch and Bound algorithm. We also propose a simple heuristic
algorithm which is proved by experimental results to be better than an
existing heuristic in the literature for this problem. |
|
35. |
1. Tên bài báo: Alternaria Comparative Genomics: The Secret Life of Rots
2. Tên tạp chí: Genomics of Plant-Associated Fungi and Oomycetes: Dicot
Pathogens
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Anh
6. Tác giả thuộc Học viện: 1. Đặng Xuân Hà
7. Các tác giả bài báo: Ha X Dang, Christopher B Lawrence
BOOK.
8. Tóm tắt nội dung: The rots are among the most destructive plant
diseases caused by necrotrophic fungi. Toxins and hydrolytic enzymes
secreted by these pathogens inflict tissue damage and/or death on their
hosts in advance of and in concert with hyphal colonization. Although
they represent a small percentage of fungal diversity, these fungi are
tremendously important, economically causing severe losses in some parts
of the world annually. Necrotrophs, including many species of
Alternaria, represent the largest class of plant pathogens, yet our
understanding of host -parasite interactions involving this class of
pathogens is still lacking. In addition, Alternaria has been shown to be
a source of potent human allergens and associated with the onset and
exacerbation of asthma. Multiple genomes of various plant -pathogenic
and allergenic Alternaria spp. have now been sequenced and annotated,
with the ultimate aim of improving our understanding of these important
disease-causing fungi. This chapter describes the status and results of
various Alternaria genome sequencing projects, annotation approaches,
comparative genomics endeavors as well as public resources. © 2014
Springer-Verlag Berlin Heidelberg (outside the USA). All rights
reserved. |
|
36. |
1. Tên bài báo: A Schur Complement Method for Compressible Two-Phase
Flow Models
2. Tên tạp chí: Springer Domain Decomposition Methods in Science and
Engineering XXI, Lecture Notes in Computational Science and Engineering
Volume 98, 2014, pp 759-768
3. Tạp chí thuộc:
4. Năm xuất bản: 2014
5. Nơi xuất bản: Thụy Sỹ
6. Tác giả thuộc Học viện: 1. Đào Thu Huyên
7. Các tác giả bài báo: Thu-Huyen Dao, Michael Ndjinga, Frédéric
Magoulès
BOOK
8. Tóm tắt nội dung: In this paper, we will report our recent efforts to
apply a Schur complement method for nonlinear hyperbolic problems. We
use the finite volume method and an implicit version of the Roe
approximate Riemann solver. With the interface variable introduced in
Dao et al. (A Schur complement method for compressible Navier-Stokes
equations. In: Proceedings of the 20th International Conference on
Domain Decomposition Methods, 2011) in the context of single phase
flows, we are able to simulate two-fluid models (Ndjinga et al., Nucl.
Eng. Des. 238, 2008) with various schemes such as upwind, centered or
Rusanov. Moreover, we introduce a scaling strategy to improve the
condition number of both the interface system and the local systems.
Numerical results for the isentropic two-fluid model and the
compressible Navier-Stokes equations in various 2D and 3D configurations
and various schemes show that our method is robust and efficient. The
scaling strategy considerably reduces the number of GMRES iterations in
both interface system and local system resolutions. Comparisons of
performances with classical distributed computing with up to 218
processors are also reported. |
|
37. |
1. Tên bài báo: Removal of estrogens by electrochemical oxidation
process
2. Tên tạp chí: Journal of Environmental Sciences
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Australia
6. Tác giả thuộc Học viện: 1. Võ Hữu Công
7. Các tác giả bài báo: Vo Huu Cong, Sota Iwaya, Yutaka Sakakibara
8. Tóm tắt nội dung: Treatments of estrogens such as Estrone (E1),
Estradiol (E2) and Ethinylestradiol (EE2) were conducted using an
electrolytic reactor equipped with multi-packed granular glassy carbon
electrodes. Experimental results showed that E1, E2 and EE2 were
oxidized in the range of 0.45–0.85 V and were removed through
electro-polymerization. Observed data from continuous experiments were
in good agreement with calculated results by a mathematical model
constructed based on mass transfer limitation. In continuous treatment
of trace estrogens (1 μg/L), 98% of E1, E2 and EE2 were stably removed.
At high loading rate (100 μg/L), removal efficiency of E1 was kept
around 74%–88% for 21 days, but removal efficiency reduced due to
passivation of electrodes. However, removal efficiency was recovered
after electrochemical regeneration of electrodes in presence of ozone.
Electric energy consumption was observed in the range of 1–2 Wh/m3. From
these results, we concluded that the present electrochemical process
would be an alternative removal of estrogens. |
|
38. |
1. Tên bài báo: Effects of Household Characteristics on Expenditure for
Dairy Products in Vietnam
2. Tên tạp chí: International Journal of Research Studies in
Agricultural Sciences (IJRSAS) - ISSN 2454–6224,Volume 1, Issue 5, PP
1-13
3. Tạp chí thuộc:
4. Năm xuất bản: 2014
5. Nơi xuất bản: Ấn Độ
6. Tác giả thuộc Học viện: 1. Trần Hữu Cường
7. Các tác giả bài báo: Nguyễn Văn Phương, Trần Hữu Cường, Marcus
Mergenthaler
8. Tóm tắt nội dung: In the second part of the work, we are inspired
from foreign experience in this field to define an accounting system for
technical-economic monitoring of dairy cattle adapted for the situation
of Vietnamese farmers. This system has been tested in Moc Chau in an
experimental dairy farm to provide data regarding the efficiency and
profitability of operations. Dairy farmers were interested in the
proposed monitoring system because it allows them to know the level of
performance and to compare it to the others. They were interested in
revenue generated from costs control. The major constraints in the
application of this monitoring in selected farms were the lack of
capacity and knowledge from producers. |
|
39. |
1. Tên bài báo: Electrolytic Treatment of Trace Natural and Synthetic
Estrogens
2. Tên tạp chí: Journal of Advanced Oxidation Technologies, Volume 17,
Number 1, pp. 115-120(
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Mỹ
6. Tác giả thuộc Học viện: 1. Võ Hữu Công
7. Các tác giả bài báo: Cong, Vo Huu1; Sakakibara, Yutaka
8. Tóm tắt nội dung: Electrochemical removals of natural and synthetic
estrogens, Estrone (E1), 17β-Estradiol (E2) and Ethynylestradiol (EE2),
were experimentally studied using granular electrolytic reactor in
combination with a cyclic voltammetric technique. Experimental results
showed that by an application of electric current, the estrogens were
oxidized at 600-800 mV (vs. Ag/AgCl reference electrode) on the surface
of anode and then removed through polymerization of estrogens. Moreover,
the electrochemical removal of the estrogens could be reasonably well
simulated by a mathematical model developed assuming the external
liquid-film mass transfer as a rate-limiting step. Furthermore, it was
found that E1 was produced and then removed during the treatment of E2.
Further study will be needed to quantify and control the
electro-polymerization of estrogens. |
|
40. |
1. Tên bài báo: A study on some factors which influence management of
agricultural land use in Sontay town, Hanoi city, Vietnam
2. Tên tạp chí: Acta Sci. Pol,, Administratio Locorum 13(3) 2014,
pp.7-26
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Ba Lan
6. Tác giả thuộc Học viện: 1. Đỗ Thị Tám
7. Các tác giả bài báo: Bui Tuan Anh, Nguyen Dinh Bong, Do Thi Tam
8. Tóm tắt nội dung: The sustainable land use management relates to the
current and future areas of economics, society, culture and environment,
limits land and water degradation and reduces production costs. The
study aims to find out some limiting factors in the management of
agricultural land use in Sontay Town. The impact of the factors on the
management of agricultural land use was analyzed by using Spearman Rank
Correlation Coefficient in SPSS 17.0 with significant level 0.05 through
the investigation of 160 households from 4 communes. The results of the
research show that the local people realize that there has been a
remarkable change in the land use management over the period and the
main factors which influence the management of agricultural land use are
land policies, policies supporting capital, techniques; characteristics
of soil, scale of the area of farm land, and the roles of media and
information |
|
41. |
1. Tên bài báo: The Five Million Hectare Reforestation Program in
Vietnam: An analysis of its Implementation and Transaction Costs. A case
study in Hoa Binh province
2. Tên tạp chí: Quarterly Journal of International Agriculture, 53
(2014), No.4: p341-375
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Đức
6. Tác giả thuộc Học viện: 1. Trần Thị Thu Hương
7. Các tác giả bài báo: Tran Thi Thu Huong, Manfred Zeller, and Chu Thai
Hoanh
8. Tóm tắt nội dung: This research study uses a qualitative approach to
examine the implementation of the
‘Five Million Hectare Reforestation Program’ (the 5MHRP) in Vietnam, and
to
explore the underlying reasons for local people’s participation in the
program. The
study also uses a transactional model to examine the private transaction
costs borne by
farmers when carrying out forest management activities under the
program. |
|
42. |
1. Tên bài báo: The effect of nitrogen concentration on nitrogen use
efficiency and related parameters in cultivated rices (Oryza sativaL.
subsp. indica andjaponica andO. glaberrima Steud.) in hydroponics
2. Tên tạp chí: Euphytica
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Hà Lan
6. Tác giả thuộc Học viện: 1. Nguyễn Thị Thúy Hạnh (CNSH) 2. Phạm
Văn Cường
7. Các tác giả bài báo: Nguyễn Thị Thúy Hạnh, Phạm Văn Cường, Pierre
Bertin
8. Tóm tắt nội dung: Nitrogen use efficiency (NUE) in cultivated rice
has become of utmost importance due to ecological and economical
consequences of nitrogen (N) losses. However, detailed information on
the components of NUE-physiological, absorption and agronomical NUEs-is
lacking. The present study aimed to determine the components of NUE for
three cultivars of Asian and African rices [IR64 (Oryza sativa indica),
Azucena (O. sativa japonica) and TOG7105 (O. glaberrima)] exposed to a
wide range of N supply, from excess to deficiency - from 4X to 1/8X of
the standard Yoshida solution (1X). Increasing the N supply to 2X or 4X
did not induce much change for most parameters, including tissue N
concentrations and pNUE. However, aNUE and agNUE decreased gradually as
the N supply increased from 1/2X to 4X. In contrast, lowering the N
supply, particularly to 1/4X or 1/8X, induced a significant decrease in
most measured parameters, except NUEs. The pNUE increased gradually when
lowering the N supply from 1Xto 1/8X, while aNUE and agNUE were maximal
at 1/2 and/or 1/4X according to the cultivar. In contrast, the Fv/Fm and
PSII values remained unchanged. Differences between cultivars were low.
However, the O. Glaberrima cultivar showed a significantly lower aNUE
and agNUE than both O.sativa cultivars under low N supply (1/4 and
1/8X). These results demonstrate that all NUE components were sharply
and differentially affected by low N supply, while the PSII remained
unaffected. These results are important for determining the cultivar and
N supply with the best balance between intensive and sustainable rice
cultivation. |
|
43. |
1. Tên bài báo: Membranoproliferative glomerulonephritis in a calf with
nephrotic syndrome
2. Tên tạp chí: Journal of comparative pathology
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Hà Lan
6. Tác giả thuộc Học viện: 1. Nguyễn Thị Trang
7. Các tác giả bài báo: Trang NT, Hirai T, Nabeta R, Fuke N, Yamaguchi R
8. Tóm tắt nội dung: A 2-month-old Japanese black calf was presented
with a history of weight loss, exophthalmos and subcutaneous oedema of
the brisket. Urinalysis and serum biochemistry showed proteinuria and
hypoproteinaemia suggestive of nephrotic syndrome. Microscopically,
lesions in the kidney were characterized by proliferation of mesangial
cells and diffuse thickening of the glomerular basement membranes with
the appearance of double contours. Immune complex deposits were
confirmed by electron microscopy and immunofluorescence using reagents
specific for bovine immunoglobulin G, complement factor C3 and bovine
viral diarrhoea virus (BVDV). Consequently, the glomerular lesion in
this case was diagnosed as membranoproliferative glomerulonephritis.
BVDV type 1 was detected in serum by nested reverse transcriptase
polymerase chain reaction. Viral antigen was also identified in the
glomeruli by immunofluorescence. These results suggest that BVDV may
have been the cause of immune complex glomerulonephritis in this calf. |
|
44. |
1. Tên bài báo: Detection of porcine reproductive and respiratory
syndrome virus in oral fluid from naturally infected pigs in a breeding
herd
2. Tên tạp chí: Journall of veterinary science
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Hàn Quốc
6. Tác giả thuộc Học viện: 1. Nguyễn Thị Trang
7. Các tác giả bài báo: Nguyen Thi Trang1,2, Takuya Hirai1,*, Tsukasa
Yamamoto1, Mari Matsuda1, Naoko Okumura1, Nguyen Thi Huong Giang1,2,
Nguyen Thi Lan3, Ryoji Yamaguchi
8. Tóm tắt nội dung: The objectives of the present study were to
evaluate the anatomic localization of porcine reproductive and
respiratory syndrome virus (PRRSV) in naturally infected pigs and to
determine whether oral fluid could be used to detect the virus in
infected animals. Two sows, seven 2-month-old grower pigs, and 70
6-month-old gilts were included in this study. PRRSV in sera and oral
fluid were identified by nested reverse transcription PCR (nRT-PCR)
while lung, tonsil, and tissue associated with oral cavity were
subjected to nRT-PCR, immunohistochemistry, and in situ hybridization.
In sows, PRRSV was identified in oral fluid and tonsils. PRRSV was also
detected in oral fluid, tonsils, salivary glands, oral mucosa, and lungs
of all seven grower pigs. However, viremia was observed in only two
grower pigs. Double staining revealed that PRRSV was distributed in
macrophages within and adjacent to the tonsillar crypt epithelium. In
gilts, the North American type PRRSV field strain was detected 3 to 8
weeks after introducing these animals onto the farm. These results
confirm previous findings that PRRSV primarily replicates in tonsils and
is then shed into oral fluid. Therefore, oral fluid sampling may be
effective for the surveillance of PRRSV in breeding herds. |
|
45. |
1. Tên bài báo: Study some technical methods to organic rice production
at Hanoi, Vietnam
2. Tên tạp chí: Journal of Agriculture and Biodiversity Research
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Ấn Độ
6. Tác giả thuộc Học viện: 1. Phạm Tiến Dũng
7. Các tác giả bài báo: Nguyen Hong Hanh, Pham Tien Dung
8. Tóm tắt nội dung: The studies were carried between 2010 and 2011 in
Myduc districts, Hanoi. This research included 3 experiments to study
the effects of: (a) burying rice straw incorporated with microbial
products, (b) application rates of composted manure and Songgianh
microorganism and (c) organic foliar fertilizers. Bacthom 7 rice variety
was used as the model crop plant. Randomized complete block design with
three replicates was employed in the experiments. The results indicated
that, burying rice straw with bio-plant microbial product increased the
yield significantly (45.5 ta/ha in spring and 40.5 ta/ha in autumn) over
the treatment in which microbial products were not incorporated (38.9
and 36.5 ta/ha, respectively). The treatment with 15-20 ton/ha composted
chicken manure combined with 0.5-2.5 ton/ha Songgianh microorganism was
found to be the most effective with respect to grain yield. Among the
organic foliar fertilizers applied, ChelaxLayO organic-foliar fertilizer
significantly increased spikelets/panicle and grain yield. The above
findings were applied successfully in demonstration model that increased
rice quality with protein (6.9), starch (78%) and economical
effectiveness of organic rice production; decreased NO3- residue
content, as well as improve soil fertility. |
|
46. |
1. Tên bài báo: Study some technical methods to organic rice production
at Hanoi, Vietnam
2. Tên tạp chí: Journal of Agriculture and Biodiversity Research
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Ấn Độ
6. Tác giả thuộc Học viện: 1. Phạm Tiến Dũng 2. Nguyễn Hồng Hạnh
7. Các tác giả bài báo: Nguyen Hong Hanh, Pham Tien Dung
8. Tóm tắt nội dung: The studies were carried between 2010 and 2011 in
Myduc districts, Hanoi. This research included 3
experiments to study the effects of: (a) burying rice straw incorporated
with microbial products, (b)
application rates of composted manure and Songgianh microorganism and
(c) organic foliar fertilizers.
Bacthom 7 rice variety was used as the model crop plant. Randomized
complete block design with three
replicates was employed in the experiments. The results indicated that,
burying rice straw with bio-plant
microbial product increased the yield significantly (45.5 ta/ha in
spring and 40.5 ta/ha in autumn) over the
treatment in which microbial products were not incorporated (38.9 and
36.5 ta/ha, respectively). The
treatment with 15-20 ton/ha composted chicken manure combined with
0.5-2.5 ton/ha Songgianh
microorganism was found to be the most effective with respect to grain
yield. Among the organic foliar
fertilizers applied, ChelaxLayO organic-foliar fertilizer significantly
increased spikelets/panicle and
grain yield. The above findings were applied successfully in
demonstration model that increased rice
quality with protein (6.9), starch (78%) and economical effectiveness of
organic rice production;
decreased NO3- residue content, as well as improve soil fertility. |
|
47. |
1. Tên bài báo: How to innovation the current Accounting system in
Vietnam?
2. Tên tạp chí: 3rd International Symposium on Accounting and Finance.
ISAF 2014 TOKYO
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Nhật Bản
6. Tác giả thuộc Học viện: 1. Phí Thị Diễm Hồng
7. Các tác giả bài báo: Phí Thị Diễm Hồng
8. Tóm tắt nội dung: In conclusion, our study provides an appropriate
model for the establishment of a management system of milk production.
The most suitable model is to set up an independent agency. The cost of
this monitoring was estimated, and scenarios for sustainability have
been proposed. Contributing to lower costs through a better
understanding of technical and economic performance of farmers, the
service management operations will improve the competitiveness of
locally produced milk with imported products. |
|
48. |
1. Tên bài báo: Full-scale bioreactor pretreatment of highly toxic
wastewater from styrene and propylene oxide production
2. Tên tạp chí: Ecotoxicology and Environmental Safety
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Mỹ
6. Tác giả thuộc Học viện: 1. Đào Thị Thùy Linh
7. Các tác giả bài báo: Linh Dao, Tatiana Grigoryeva, Alexander Laikov,
Ruslan Devjatijarov, Olga Ilinskaya
8. Tóm tắt nội dung: The wastewater originating from simultaneous
production of styrene and propylene oxide (SPO) is classified as highly
polluted with chemical oxygen demand level in the range 5965 to 9137 mg
L-1—as well as highly toxic. The dilution factor providing for a 10
percent toxic effect of wastewater samples in a test with Paramecium
caudatum was 8.0–9.5. Biological approach for pretreatment and
detoxification of the wastewater under full-scale bioreactor conditions
was investigated. The number of suspended microorganisms and the clean
up efficiency were increased up to 5.5–6.58 x 10^8 CFU mL-1 and 88
percent, respectively during the bioreactor’s operation. Isolates in the
Citrobacter, Burkholderia, Pseudomonas, and Paracoccus genera were
dominant in the mature suspended, as well as the immobilized microbial
community of the bioreactor. The most dominant representatives were
tested for their ability to biodegrade the major components of the SPO
wastewater and evidence of their role in the treatment process was
demonstrated. The investigated pretreatment process allowed the
wastewater to be detoxified for conventional treatment with activated
sludge and was closely related to the maturation of the bioreactor’s
microbial community. |
|
49. |
1. Tên bài báo: Purification of waste air in the petrochemical
wastewater pretreatment apparatus
2. Tên tạp chí: Herald of Kazan Technological University
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Nga
6. Tác giả thuộc Học viện: 1. Đào Thị Thùy Linh
7. Các tác giả bài báo: Dao Thi Thuy Linh, Ngo Quy Quyen, O.N. Ilinskaya
8. Tóm tắt nội dung: In this paper we considered the pretreatment system
of petrochemical wastewater from production of styrene and propylene
oxide in the bioreactor. The values of organic pollution of the influent
and effluent wastewaters were established. The concentrations of
aromatic compounds before and after the biofilter were determined. The
efficiency of the bioreactor and biofilter operation was estimated. The
efficiency of operation of one and two biofilters for removing volatile
compounds was analyzed. It was shown that the efficiency of the
biofilter operation is sufficiently high and allows for the reduction of
the concentration of aromatic compounds in the output of the biofilter
up to 100%. |
|
50. |
1. Tên bài báo: Analysis of biological treatment apparatus operation of
petrochemical wastewaters in the bioreactor
2. Tên tạp chí: Herald of Kazan Technological University
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Nga
6. Tác giả thuộc Học viện: 1. Đào Thị Thùy Linh
7. Các tác giả bài báo: Dao Thi Thuy Linh, Ngo Quy Quyen, O.N. Ilinskaya
8. Tóm tắt nội dung: In this paper we determined the organic loading
values of influent and effluent wastewaters and estimated the
pretreatment efficiency. The microbial biomass concentration was
determined by measuring optical density at 600 nm wavelength. It was
shown that the studied wastewater is characterized as extremely
concentrated one. COD value of the influent wastewater ranged from 8976
to 45264 mg/l, while the feed rate of COD pollution ranged from 65.7 to
1005 kg/h. The efficiency of the pretreatment process in the bioreactor
ranged from 45 to 63 % during the analyzed period. The purification
degree of the individual pollutants varied from 50 to 100 % on average
and was 89.6 % during analyzed period. The optical density at 600 nm
reached 0.45 units at the maximum efficiency of the pretreatment. |
|
51. |
1. Tên bài báo: Optimization of the preliminary treatment process of
wastewater by feeding biogenic elements
2. Tên tạp chí: Herald of Kazan Technological University
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Nga
6. Tác giả thuộc Học viện: 1. Đào Thị Thùy Linh
7. Các tác giả bài báo: Dao Thi Thuy Linh, Ngo Quy Quyen, O.N. Ilinskaya
8. Tóm tắt nội dung: This paper analyzed parameters of biological
pre-treatment process of petrochemical wastewater from styrene and
propylene oxide production. It was shown that the optimal conditions for
the activity of microorganisms in the bioreactor are avoiding presence
toxic compounds in the influent wastewater with an amount exceeding the
threshold of microbial community tolerance; incoming wastewater pH in
the bioreactor ranges from 7.0 to 8.0; dissolved oxygen concentration is
not less than 2 mg/l; wastewater temperature in the bioreactor ranges
from 25 to 32 °C and the presence of biogenic elements in an amount
strictly adequate to the needs of microorganisms. The optimal ratio of
COD : NH3 : P2O5 for the microorganisms in the bioreactor of the studied
apparatus was analyzed. The quantity of biogenic elements that were
added into the bioreactor was determined. |
|
52. |
1. Tên bài báo: Characteristics of microflora in the apparatus for
pre-treatment of wastewater from petrochemical production
2. Tên tạp chí: Herald of Kazan Technological University
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Nga
6. Tác giả thuộc Học viện: 1. Đào Thị Thùy Linh
7. Các tác giả bài báo: Dao Thi Thuy Linh, Ngo Quy Quyen, O.N. Ilinskaya
8. Tóm tắt nội dung: In this paper we studied the characteristics of
microflora in the apparatus for pre-treatment of wastewater from styrene
and propylene oxide production. The composition of microbial community
that participated in the process of biological treatment of wastewater
in the bioreactor was studied. The values of organic loading of influent
and effluent wastewaters were established. The operating efficiency of
the bioreactor was estimated. The COD values of the influent wastewater
reached 80000 mg/l during the analyzed period. The amount of
microorganisms in the bioreactor apparatus of the studied wastewater
pretreatment ranged from 0.74×105 to 0.23×106 and from 1.68×105 to
1.7×106 for suspended and immobilized microflora, respectively. It was
established that bacteria from the genera Pseudomonas and Lysinibacillus
contributied mainly in the treatment process. |
|
53. |
1. Tên bài báo: Isotope dilution liquid chromatography–tandem mass
spectrometry for simultaneous identification and quantification of
beta-casomorphin 5 and beta-casomorphin 7 in yoghurt
2. Tên tạp chí: Food Chemistry
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Anh
6. Tác giả thuộc Học viện: 1. Nguyễn Đức Doan
7. Các tác giả bài báo: D.D. Nguyen, V.A. Solah, S.K. Johnson, J.W.A.
Charrois, F. Busetti
8. Tóm tắt nội dung: A highly selective and sensitive liquid
chromatography–tandem mass spectrometry method was
developed and validated for the simultaneous identification and
quantification of beta-casomorphin
5 (BCM5) and beta-casomorphin 7 (BCM7) in yoghurt. |
|
54. |
1. Tên bài báo: Allerdictor: fast allergen prediction using text
classification techniques
2. Tên tạp chí: Bioinformatics
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Anh
6. Tác giả thuộc Học viện: 1. Đặng Xuân Hà
7. Các tác giả bài báo: Ha X. Dang Christopher B. Lawrence
8. Tóm tắt nội dung: "Motivation: Accurately identifying and eliminating
allergens from biotechnology-derived products are important for human
health. From a biomedical research perspective, it is also important to
identify allergens in sequenced genomes. Many allergen prediction tools
have been developed during the past years. Although these tools have
achieved certain levels of specificity, when applied to large-scale
allergen discovery (e.g. at a whole-genome scale), they still yield many
false positives and thus low precision (even at low recall) due to the
extreme skewness of the data (allergens are rare). Moreover, the most
accurate tools are relatively slow because they use protein sequence
alignment to build feature vectors for allergen classifiers.
Additionally, only web server implementations of the current allergen
prediction tools are publicly available and are without the capability
of large batch submission. These weaknesses make large-scale allergen
discovery ineffective and inefficient in the public domain.
Results: We developed Allerdictor, a fast and accurate sequence-based
allergen prediction tool that models protein sequences as text documents
and uses support vector machine in text classification for allergen
prediction. Test results on multiple highly skewed datasets demonstrated
that Allerdictor predicted allergens with high precision over high
recall at fast speed. For example, Allerdictor only took ∼6
min on a single core PC to scan a whole Swiss-Prot database of ∼540
000 sequences and identified <1% of them as allergens." |
|
55. |
1. Tên bài báo: (Z)–11–hexadecenyl acetate and (Z)–13–octadecenyl
acetate improve the attractiveness of the standard sex pheromone of the
yellow rice stem borer Scirpophaga incertulas (Lepidoptera: Pyralidae)
in northern Vietnam
2. Tên tạp chí: J. Fac. Agr., Kyushu Univ., 59 (1), 85–89 (2014)
3. Tạp chí thuộc: Tạp chí KH quốc tế (khác)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Nhật Bản
6. Tác giả thuộc Học viện: 1. Nguyễn Văn Đĩnh 2. Hồ Thị Thu Giang
7. Các tác giả bài báo: Giang Thi Thu HO1, Hao V. LA1, David R. HALL2,
Thuy D. LE1,Dinh NGUYEN1, Jerry V. CROSS3
and Takatoshi UENO4
8. Tóm tắt nội dung: The attractiveness of a combined lure containing
the pheromone components of the yellow rice stem
borer Scirpophaga incertulas (Walker) and the rice leaf folder
Cnaphalocrosis medinalis (Guenée) to
mixed populations of the two species was tested in northern Vietnam.
Rubber septa lures containing a 1:3
ratio of (Z)–9–hexadecenal and (Z)–11–hexadecenal were tested alone and
in combination with a 1:1 blend
of (Z)–11–hexadecenyl acetate and (Z)–13 octadecenyl acetate in field
experiments in summer rice crops
at two locations. Lures containing (Z)–9–hexadecenal and
(Z)–11–hexadecenal were attractive to S. incertulas
males. The addition of (Z)–11–hexadecenyl acetate and (Z)–13–octadecenyl
acetate significantly
improved catches by 120% on average in five out of six replicated field
experiments. No C. medinalis were
captured, confirming previous research that the blend of
(Z)–11–hexadecenyl acetate and (Z)–13–octadecenyl
acetate is not attractive to this species in northern Vietnam.
Ovipositor washings from virgin female S.
incertulas collected from rice crops in Vietnam were analysed by gas
chromatography coupled to mass
spectrometry. Hexadecanal, (Z)–9–hexadecenal, (Z)–11–hexadecenal,
(Z)–9–octadecenal, and (Z)–11–
hexadecen–1–ol were detected in relative amounts of 18:34:100:20:54 with
(Z)–11–hexadecenal estimated
to be present at up to 5 ng/female. Traces of (Z)–11–hexadecenyl acetate
were also present, but (Z)–13–
octadecenyl acetate was not detected. Add one or two sentence(s) to give
short conclusion and/or interpretation
of the results |
|
56. |
1. Tên bài báo: Inferring time-variable effects of nutrient enrichment
on marine ecosystems using inverse modelling and ecological network
analysis
2. Tên tạp chí: Science of The Total Environment
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Bỉ
6. Tác giả thuộc Học viện: 1. Lương Đức Anh
7. Các tác giả bài báo: Luong Duc Anh, De Laender F, Olsen Y, Vadstein
O, Dewulf J, Janssen CR.
8. Tóm tắt nội dung: We combined data from an outdoor mesocosm
experiment with carbon budget modelling and an ecological net- work
analysis to assess the effects of continuous nutrient additions on the
structural and functional dynamics of a marine planktonic ecosystem. The
food web receiving no nutrient additions was fuelled by detritus, as
zooplank- ton consumed 7.2 times more detritus than they consumed algae.
Nutrient supply instantly promoted herbivory so that it was comparable
to detritivory at the highest nutrient addition rate. Nutrient-induced
food web restructuring reduced carbon cycling and decreased the average
number of compartments a unit flow of carbon crosses before dissipation.
Also, the efficiency of copepod production, the link to higher trophic
levels harvestable by man, was lowered up to 35 times by nutrient
addition, but showed signs of recovery after 9 to 11 days. The
dependency of the food web on exogenous input was not changed by the
nutrient additions. |
|
57. |
1. Tên bài báo: A Staining Method for Assessing the Viability of Esteya
Vermicola Conidia
2. Tên tạp chí: Curr Microbiol
3. Tạp chí thuộc: Tạp chí KH quốc tế ISI (IF)
4. Năm xuất bản: 2014
5. Nơi xuất bản: Mỹ
6. Tác giả thuộc Học viện: 1. Nguyễn Trọng Thăng
7. Các tác giả bài báo: Yunbo Wang, NguyenTrong Thang, Zheng Li,
Yongan Zhang, Jingjie Li, Jianjie Xue, Lijuan Gu,
VuThuy Hong, Lee Mira, Changkeun Sung
8. Tóm tắt nội dung: The viability of conidia of Esteya vermicola, a
potentially important biocontrol agent against the pinewood nematode
Bursaphelenchus xylophilus, is usually determined by cultivation for
18–48 h in culture medium. As an alternative to this labor-intensive
method, we have developed a rapid, simple, and low-cost staining method
for assessing E vermicola conidia survival rates. A mixture of neutral
red and methylene blue was found to be the most optimal among several
stains that also included safranin O and Janus green B. This mixture
stained nonviable conidia blue, in contrast to viable conidia, which
were stained red in the cytoplasm and blue in the cell wall. This method
may be particularly useful for traditional research laboratories, as it
provides rapid results using common, relatively inexpensive laboratory
equipment. |