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那坡凤仙花,越南凤仙花科新记录（英文）

热带亚热带植物学报 2018年第5期26卷 545-548页

作者：阮生康童毅华夏念和越南科学技术院生态与生物资源研究所河内越南中国科学院华南植物园中国科学院植物资源保护与可持续利用重点实验室广东省数字植物园重点实验室广州510650

报道了越南凤仙花科(Balsaminaceae)1新记录种:那坡凤仙花(Impatiens napoensis ***)。该种产自越南北部河江省(Ha Giang)的Quan Ba地区,凭证标本保存在越南科学技术院生态和生物资源研究所标本馆(HN)和中国科学院华南植物园标本馆(IBSC... 详细信息

报道了越南凤仙花科(Balsaminaceae)1新记录种:那坡凤仙花(Impatiens napoensis ***)。该种产自越南北部河江省(Ha Giang)的Quan Ba地区,凭证标本保存在越南科学技术院生态和生物资源研究所标本馆(HN)和中国科学院华南植物园标本馆(IBSC)。提供了该种的描述、彩色照片、生态学、花果期等信息。

关键词：凤仙花科凤仙花属那坡凤仙花新记录越南

Relationship between Hydrogeological Structure and Groundwater Exploitation Capacity in Aquifer of the Basin of Cai Phan Rang River, Ninh Thuan Province, viet Nam

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Journal of Environmental Science and Engineering(A) 2014年第1期3卷 32-41页

作者： nguyen Minh Khuyen nguyen Hong Hieu Doan Van Long Le Thanh Tung Department of Water Resources Management Ministry of Natural Resources and Environment Hanoi 100000 Vietnam

This article presents the results of dividing the hydrogeological structure zones in aquifer of Cai Phan Rang river basin, Ninh Thuan province, viet Nam, and the relationship between parameters of hydrogeological structure zones with water storage capacity of hydrogeological structure. Research results divided hydrogeological structure of Cai Phan Rang River Basin into four zones, including three zones with depression bedrock and one zone with slope bedrock, and the results assessed: (1) specific discharge of exploitation well is proportional to zone area of hydrogeological structure; (2) specific discharge of exploitation well is inversely proportional to slope of bedrock surface, slope of water level in zone and area of drainage surface of hydrogeological structure zone; (3) water level fluctuation in zone is proportional to slope of bedrock surface, slope of water level in zone and inversely proportional to distribution area of zone; (4) total mineralization of water is proportional to bedrock surface slope and water level slope in zone, and inversely proportional to drainage surface area of zone and volume of structural depression. Research results are practical significance in solutions proposal to increase exploitation capacity for various water use purposes.

关键词：水文地质结构地下水开采量河流域含水层越南水位变化地质构造带能力参数

Challenges in Power Production Investment in vietnam

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Journal of Electrical Engineering 2019年第1期7卷 14-18页

作者： Nam Hoai nguyen Binh Van Doan Quyen Le Luu Thanh Cao nguyen Institute of Energy Science Vietnam Academy of Science and Technology18 Hoang Quoc VietCau GiayHanoi 10072Vietnam

This paper presents the results of the survey to initially assess the current situation of power supply chain development in vietnam. The research team used questionnaires to identify challenges and barriers in power production investment. Surveyors came from power generation units, power transmission and distribution units, service providers for power plants, consulting agency and research institutes. The results indicated that there is a difference among enterprises’ barriers and difficulties in the management, finance and investment environment. This difference is related to the business profiles of the enterprise, its segment of the electricity generation market, capacity and experience in the market.

关键词： Power production investment vietnam policy recommendation

Data Warehouse Design Methodologies for Electronic Commerce

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通讯和计算机（中英文版） 2013年第2期10卷 270-275页

作者： Dinh Thuan nguyen Tung Hoang Faculty of lnformation Systems University of Information Technology VNU-HCM Ho Chi Minh city 70000 Viet Nam Faculty of Information Technology Dong Nai University Dong Nai Province 71000 Viet Nam

Nowadays, application of information technology in E-commerce is a field for many researchers and applications. The trade companies have cooperated with software companies (such as Amazon and Microsoft) for researching and providing some results on applications in the market. In this paper, we discuss the design of data warehouses for e-commerce, in addition to requirements analysis, design for data warehouse modeling.

关键词：设计方法数据仓库电子商务研究人员信息技术软件公司贸易公司需求分析

Optical Trap 2D Array by Acoustic Modulation

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Journal of Physical Science and Application 2014年第7期4卷 420-425页

作者： Van Thinh nguyen Quang Quy Ho Physics Faculty Bac Lieu University Bac Lieu Vietnam Institute of Applied Physics NEWTECHPRO VAST 8 Hoang Quoc Viet Hanoi Vietnam

In this artilce a new optical trap 2D array by the acoustic modulation is proposed. Based on the "called" acoustic-elasticity of the fluid embedding trapped microparticle, the expression describing the refractive index induced by cross-interference of two perpendicular ultrasonic waves is approximately derived. By simulation, the 2D array of the Graded-refractive index lenses appeared in the fluid layer with certain strain-acoustic constant and thickness. The trapping capability of the plane-wave laser beam propagating through those lenses is shown out, and the appearance of the optical trap 2D array has been affirmed.

关键词：二维数组声光调制梯度折射率透镜陷阱平面波传播交叉干扰捕集能力流体层

Optimization of Nanocomposite TiO2/Hydroxyl Apatite for the Photocatalytic Paint

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材料科学与工程（中英文A版） 2013年第5期3卷 329-333页

作者： nguyen Thi Mai Huong Le Thi Thu Huong Hoang Chung Hieu Tran Thi Duc nguyen Trong Tinh lntitute of Applied Physics and Scientific Instruments Viet Nam Academy of Science and Technology Cau Giay District HanoiVietnam

Recently, photocatalytic material based on nanostructure TiO2 is one of the best ways for many environmental problems. In practice, the photocatalytic materials usually are used in the form of paint. The technical problem has been raised, that is the coexistence of the active photocatalytic material and organic binder. This report presents the way to solve above technical problem. The TiO2 nanostructure photocatalytic has been combined with hydroxyl apatite to make a photocatalytic nanocomposite TiO2/hydroxyl apatite. The preparation of nanocomposite is immersion of the nanostructure TiO2 anatase phase in the PBS solution (Pseudo Blood Solution) with suitable conditions. The photocatalytic nanocomposite TiO2/Hydroxyl Apatite is well coexisted with acrylic organic binder. The studies of the material properties, photocatalytic abilities and optimization of preparation have been discussed.

关键词：纳米复合材料光催化涂料羟基磷灰石优化纳米二氧化钛光催化材料有机粘合剂有机粘结剂

The Roughness of Model Function to the Basis Functions

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Journal of Mathematics and System Science 2013年第8期3卷 385-390页

作者： To Van Ban nguyen Thi Quyen Phan Thu Ha Department of mathematics IT faculty Le Quy Don Technical University 100 Hoang Quoc Viet Cau Giay District Hanoi Vietnam Faculty of Mathematics Hai Phong University 1 71 Phan Dang Luu Kien An District Hai Phong Vietnam

The roughness of the model function f(x) to the basis functions has been identified. When the model function is continuous segment, its roughness does not depend on the behavior of the first segment, but depends on "h", the shift in the slope of two consecutive segments. If the distribution of design is uniform, f(x) is continuous segment function, and h is constant, then the maximum roughness is 2 h /192 obtained at the midpoint of the observations. Suppose that we have a sequence of designs n {P (x)} then its corresponding distribution n {F (x)} converges weakly to some distribution F(x). Let D(f) be a set of discontinuous points of f(x), it is possible to take the limit of the roughness if D(f) has zero (dF)-measure. The behavior of maximum roughness of the discontinuous segment function has been studied by using grid points.

关键词：表面粗糙度基函数型号模型函数不连续点分布函数弱收敛网格点

Antibiofilm activity of a-mangostin extracted from Garcinia mangostana L. against Staphylococcus aureus

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Asian Pacific Journal of Tropical Medicine 2017年第12期10卷 1154-1160页

作者： nguyen Thi Mai Phuong Ngo Van Quang Ta Thu Mai nguyen Vu Anh Chutima Kuhakarn Vichai Reutrakul Albert Bolhuis Institute of Biotechnology Vietnam Academy of Science and Technology18 Hoang Quoc Viet RoadHanoiViet Nam Graduate University of Science and Technology Vietnam Academy of Science and Technology18 Hoang Quoc Viet RoadHanoiViet Nam Institute of Chemistry Vietnam Academy of Science and Technology18 Hoang Quoc Viet RoadHanoiViet Nam Center of Excellence for Innovation in Chemistry and Department of Chemistry Faculty of ScienceMahidol UniversityRama 6 RoadBangkok 10400Thailand Department of Pharmacy and Pharmacology University of BathClaverton Down BathBA2 7AYBathUK

Objective: To isolate a-mangostin(AMG) from the peels of mangosteen(Garcinia mangostana L.), grown in vietnam, and to investigate antibiofilm activity of this compound against three Staphylococcus aureus(S. aureus) strains, one of which was methicillin-resistant S. aureus(MRSA) and the other two strains were methicillinsensitive S. aureus(MSSA).Methods: AMG in n-hexane fraction was isolated on a silica gel column and chemically analyzed by HPLC and NMR. The antibiofilm activity of this compound was investigated by using a 96-well plate model for the formation of biofilms. Biofilm biomass was quantified using crystal violet. The viability of cells was observed under confocal microscopy using LIVE/DEAD Bac Light stains. Biofilm composition was determined using specific chemical and enzyme tests for polysaccharide, protein and DNA. Membranedamaging activity was assayed by measuring the hemolysis of human red blood cells in presence of ***: The results indicated that the isolated AMG, with a purity that exceeded 98%,had minimal inhibitory concentrations in the range of 4.6–9.2 mmol/L for the three strains tested. Interestingly, the MSSA strains were more sensitive to AMG than the MRSA strain. Minimal bactericidal concentrations were 2-fold higher than the minimal inhibitory concentration values for the three strains, indicating that AMG was a bactericidal compound. AMG also prevented biofilm formation effectively, albeit that again the MRSA strain was the most resistant. Interestingly, biofilms of the MRSA strain contained protein as a main component of the extracellular matrix, whereas this was polysaccharide in the MSSA strains. This might relate to the resistance of the MRSA 252 strain to *** using human red blood cells indicated that AMG caused significant membrane damage with 50% of cell lysis occurred at concentration of about 36 mmol/***: Our results provide evidence that the isolated AMG has inhibitory activity against biofilm formation

关键词： α-Mangostin Garcinia mangostana Biofilms Methicillin resistance Staphylococcus aureus

Improved Flame Retardant Properties of Polymers Epoxy Based on Antimony Trioxide/Chlorinated Paraffin

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材料科学与工程（中英文A版） 2014年第5期4卷 146-150页

作者： Bach Trong Phuc Tran Vinh Dieu nguyen Tuan Anh Center Polymers and Composite Materials Hanoi University of Science and Technology Hanoi Viet Nam Faculty of Chemical Technology Hanoi University of Industry Minh Khai ward Tu Liem Ha Noi Viet Nam

In this study, the flame retardants such as chlorinated paraffin, antimony trioxide were combined with epoxy Epikote 240 resin cured by amine hardeners in order to increase flammability and maintain the mechanical strength of this material. The Underwriters Laboratories Inc (UL-94) and limiting oxygen index (LOI), thermal gravimetric analysis (TGA) and Field Emission Scanning Electron (FE-SEM) methods were used. The mechanical properties of materials have been determinted. The experiment indicated that a compound containing 9 phr antimony trioxide and 11phr cholorinated paraffin proved the best fire-retardant specification.

关键词：氯化石蜡环氧树脂阻燃性能三氧化二锑聚合物基 FE-SEM 三氧化锑极限氧指数