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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

Accumulation of High Molecular Weight Glutenin Subunits in Superior and Inferior Grains of Winter Wheat

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Journal of Agricultural Science and Technology(B) 2015年第7期5卷 451-458页

作者： hoang Kim Toan Yun BO Qin Zhou Jian Cai Xiao Wang Zhongwei Tian Tingbo Dai Weixing Cao Dong Jiang National Engineering and Technology Center for Information Agriculture/Key Laboratory of Crop Physiology and Ecology inSouthern China Ministry of Agriculture Nanjing Agricultural University Nanjing 210095 China Hue University 03 Le Loi Thua Thien Hue Province 47000 Vietnam

Annealing Effect on the Ionic Conductivity of La0.6-.xLi3xTiO3 Made by Double Mechanical Alloying Method

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材料科学与工程（中英文B版） 2014年第4期4卷 86-94页

作者： le Dinh Trong Nguyen Nang Dinh Pham Duy Long Faculty of Physics Hanoi Pedagogical University No.2 Xuan Hoa Phuc Yen Vinh Phue Vietnam Faculty of Engineering Physics & Nanotechnology University of Engineering and Technology Hanoi Vietnam National University 144 Xuan Thuy str. Cau -Giay Dist. Hanoi 1000 Vietnam Institute of Materials Science Vietnam Academy of Science and Technology 18 Hoang-Quoc-Viet str. Cau -Giay Dist. Hanoi Vietnam

A New Method Combining Interior and Exterior Approaches for Linear Programming

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Journal of Mathematics and System Science 2015年第5期5卷 196-206页

作者： Nguyen Ngoc Chu Pham Canh Duong le Thanh Hue Institute of Mathematics 18 Hoang Quoc Viet HanoL Vietnam. Center for Information Infrastructure Development Vietnamese Academy of Science and Technology 18 Hoang Quoc Viet HanoiVietnam. Faculty of lnformatics Technology University of Mining and Geology Hanoi Vietnam.

In this paper we present a new method combining interior and exterior approaches to solve linear programming problems. With the assumption that a feasible interior solution to the input system is known, this algorithm uses it and appropriate constraints of the system to construct a sequence of the so called station cones whose vertices tend very fast to the solution to be found. The computational experiments show that the number of iterations of the new algorithm is significantly smaller than that of the second phase of the simplex method. Additionally, when the number of variables and constraints of the problem increase, the number of iterations of the new algorithm increase in a slower manner than that of the simplex method.

关键词：线性规划问题输入系统单纯形法迭代次数算法溶液顶点二阶

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