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Journal of Advanced Ceramics 2020年第4期9卷 462-470页

作者： Xiaobing Zhou Lei Jing Yong Duk Kwon Jin-Young kim Zhengren Huang dang-Hyok Yoon Jaehyung Lee Qing Huang Engineering Laboratory of Advanced Energy Materials Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo315201China School of Materials Science and Engineering Yeungnam UniversityGyeongsan38541Republic of Korea Union Materials Corporation Daegu42710Republic of Korea

High strength SiC whisker-reinforced Ti3SiC2 composites(SiCw/Ti3SiC2)with an improved thermal conductivity and mechanical properties were fabricated by spark plasma *** bending strength of 10 wt%SiCw/Ti3SiC2 was 635 MPa,which was approximately 50%higher than that of the monolithic Ti3SiC2(428 MPa).The Vickers hardness and thermal conductivity(k)also increased by 36%and 25%,respectively,from the monolithic Ti3SiC2 by the incorporation of 10 wt%*** remarkable improvement both in mechanical and thermal properties was attributed to the fine-grained uniform composite microstructure along with the effects of incorporated *** SiCw/Ti3SiC2 can be a feasible candidate for the in-core structural application in nuclear reactors due to the excellent mechanical and thermal properties.

关键词： SiC whisker Ti3SiC2 mechanical property thermal conductivity spark plasma sintering

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微电网电压不平衡的分层补偿控制策略

哈尔滨工业大学学报 2016年第3期48卷 46-52页

作者：黎金英艾欣邓玉辉新能源电力系统国家重点实验室(华北电力大学) 北京102206 绥和工业学院电气与电子工程学院越南绥和56000

微电网是消纳分布式电源的有效手段之一,然而也带来了其自身的电压控制的难题,特别是公共连接点处的三相电压不平衡问题比较突出,为此提出一种微电网公共连接点电压双极补偿控制方法,上层控制发送与电压的正序和负序分量有关的控制信号... 详细信息

微电网是消纳分布式电源的有效手段之一,然而也带来了其自身的电压控制的难题,特别是公共连接点处的三相电压不平衡问题比较突出,为此提出一种微电网公共连接点电压双极补偿控制方法,上层控制发送与电压的正序和负序分量有关的控制信号,采用双电流环的控制器可得到电流给定值;下层控制通过双电流环控制器实施.针对PCC点三相电压不平衡的问题,应用dq旋转坐标分解原理,提出一种基于改进解耦的双同步坐标系锁相环(IDDSRF-PLL)的控制方法,能够实现正负序分量的独立控制,并通过控制给定模型的正负序电流和电压不平衡补偿控制器得到三相平衡电压,使得公共连接点母线电压的二倍频波动部分为零,从而实现了对三相电压不平衡的补偿控制.利用MATLAB/Simulink对微电网接入电网进行建模仿真,结果表明,分层控制方法能够较好的实现对微电网的电压控制.

关键词：微电网三相电压不平衡锁相环 PQ控制分层控制

Response surface method for modeling the removal of carbon dioxide from a simulated gas using water absorption enhanced with a liquid-film-forming device

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Journal of Environmental Sciences 2018年第3期30卷 116-126页

作者： Diem-Mai kim Nguyen Tsuyoshi Imai Thanh-Loc Thi dang Ariyo Kanno Takaya Higuchi Koichi Yamamoto Masahiko Sekine Graduate School of Environmental Sciences and Engineering Yamaguchi University Graduate School of Sciences and Technology for Innovation Yamaguchi University Department of Environmental Science College of Sciences Hue University

This paper presents the results from using a physical absorption process to absorb gaseous CO2mixed with N2using water by producing tiny bubbles via a liquid-film-forming device（LFFD）that improves the solubility of CO2in *** influence of various parameters—pressure,initial CO2concentration,gas-to-liquid ratios,and temperature—on the CO2removal efficiency and its absorption rate in water were investigated and estimated thoroughly by statistical polynomial models obtained by the utilization of the response surface method（RSM）with a central composite design（CCD）.Based on the analysis,a high efficiency of CO2capture can be reached in conditions such as low pressure,high CO2concentration at the inlet,low gas/liquid ratio,and low *** instance,the highest removal efficiency in the RSM–CCD experimental matrix of nearly 80%occurred for run number 20,which was conducted at 0.30 MPa,CO2concentration of 35%,gas/liquid ratio of 0.71,and temperature of 15℃.Furthermore,the coefficients of determination,R^2,were 0.996 for the removal rate and 0.982 for the absorption rate,implying that the predicted values computed by the constructed models correlate strongly and fit well with the experimental *** results obtained provide essential information for implementing this method properly and effectively and contribute a promising approach to the problem of CO2capture in air pollution treatment.

关键词： Carbon dioxide Water dissolution Liquid-film Response surface method (RSM)

Vibrational circular dichroism unveils hidden clues

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Light(Science & Applications) 2023年第10期12卷 1987-1989页

作者： dang Du Nguyen Inki kim Department of Biophysics Institute of Quantum BiophysicsSungkyunkwan UniversitySuwon16419Republic of Korea Department of Intelligent Precision Healthcare Convergence Sungkyunkwan UniversitySuwon16419Republic of Korea

Infrared chiral plasmonic metamaterials based on perpendicularly positioned nanorods enable surface-enhanced vibrational circular dichroism for more selective and sensitive identification of protein fingerprints and e... 详细信息

关键词： circular nanorods enable

The alignment of AlN platelets in polymer matrix and its anisotropic thermal properties

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Journal of Materiomics 2019年第4期5卷 679-687页

作者： Chang-Yeoul kim Thi My Linh dang Yaming Zhang Jian-Feng Yang Bo Wang Nano-Convergence Materials Team Korea Institute of Ceramic Engineering and Technology Jinju-siGyeongsangnam-do660-031South Korea State Key Laboratory of Mechanical Behavior of Materials Xi'an Jiaotong UniversityXi'an71004China

The thermal conductivity of polymer composites can be enhanced by the vertical alignment of anisotropic aluminum nitride(AlN)platelet fillers in polymer *** AlN platelets in polymer matrix were aligned in the direction of in-plane and out-of-plane by using the doctor blading and the lamination *** alignment of AlN plates in the out-of-plane or the in-plane direction has been confirmed by XRD and FE-SEM *** polymer composite with the out-of-plane aligned AlN platelets showed almost 1.5 times or 2 times higher thermal conductivity than those with the AlN spheres or the in-plane aligned AlN platelets at the same filler content,*** result could be attributed to the improvement of thermal pathway generated along the plane of platelets and the decrease of interfaces between the filler and the polymer.

关键词： Thermal conductivity Aluminum nitride plate Polymer composite Alignment Out-of-direction In-plane direction

Advances in Liquid Chromatography-Mass Spectrometry-Based Lipidomics: A Look Ahead

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Journal of Analysis and Testing 2020年第3期4卷 183-197页

作者： Nguyen Phuoc Long Seongoh Park Nguyen Hoang anh Sun Jo kim Hyung Min kim Sang Jun Yoon Johan Lim Sung Won Kwon College of Pharmacy Seoul National UniversitySeoul 08826Republic of Korea Department of Statistics Seoul National UniversitySeoul 08826Republic of Korea

Lipidomics is a subfield of metabolic phenotyping that focuses on high-throughput profiling and quantification of *** roles of lipidomics in translational and clinical research have emerged,especially over the past *** lipidomic pipelines have been developed using mass spectrometry(MS)-based *** of the complexity of the data,generally,computational demands are much higher in untargeted lipidomic *** the current paper,we primarily discussed the recent advances in untargeted liquid chromatography-mass spectrometry-based lipidomics,covering various facets from analytical strategies to functional *** current practice of tandem MS-based lipid annotation in untargeted lipidomics studies was ***,we highlighted the essential characteristics of machine learning models,together with a data partitioning strategy,to facilitate appropriate modeling and validation in metabolic phenotyping *** aspects of data sharing were briefly ***,certain recommendations were suggested toward more standardized and sustainable lipidomics analysis strategies as independent platforms,and as members of the omics family.

关键词： Metabolic phenotyping Lipidomics Mass spectrometry Biochemical analysis Machine learning

Applying Molecular Breeding to Improve Soybean Rust Resistance in Vietnamese Elite Soybean

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American Journal of Plant Sciences 2013年第1期4卷 1-6页

作者： Tran dang Khanh Truong Quoc anh Bui Chi Buu Tran dang Xuan 2Institute of Agricultural Science for Southern Vietnam Ho Chi Minh City Vietnam Department of Molecular Biology Agricultural Genetics Institute Hanoi Vietnam Graduate School for International Development and Cooperation Hiroshima University Hiroshima Japan Institute of Agricultural Science for Southern Vietnam Ho Chi Minh City Vietnam

Soybean production in Vietnam has recently been threatened by the widespread dissemination of soybean rust (SBR) caused by the fungus Phakopsora pachyrhizi. Application of molecular breeding is considered as a feasible method to improve soybean rust resistance and minimize the adverse effects from overuse fungicides in this country. In this study, we have successfully applied molecular markers in a backcross breeding program to introgress the Rpp5 gene of SBR resistance into HL203, an elite Vietnamese soybean variety, from two donor lines of DT2000 and Stuart 99084B-28. The plants in BC4F1 generation had maximum contribution from the recurrent parents and retained SBR resistance gene.

关键词： Rust Resistant Gene Soybean Marker Assisted Selection Molecular Marker

中国家电企业在越南成立跨国公司的战略选择研究 ——以TCL公司为例

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中国家电企业在越南成立跨国公司的战略选择研究 ——以TCL公司为...

作者： dang THI NGUYET anh 上海大学

学位级别：硕士

随着经济的发展,中国家电企业不再满足于国内市场,开始寻求海外市场,跨国并购已成为国际投资的一大选择。近年来,越来越多的中国企业开始实施国际战略,在海外开展业务。由于中国经济正处于转型过程中,中国的经济环境不仅复杂多变,而且... 详细信息

随着经济的发展,中国家电企业不再满足于国内市场,开始寻求海外市场,跨国并购已成为国际投资的一大选择。近年来,越来越多的中国企业开始实施国际战略,在海外开展业务。由于中国经济正处于转型过程中,中国的经济环境不仅复杂多变,而且难以预测。这与西方较为稳定的商业环境截然不同。尽管国际化在中国兴起,但作为一个新手,中国企业在实施国际化战略方面将有别于多年来实施国际化战略的其他企业。本文以TCL集团为例,探讨了中国企业的国际化战略。本文基于对管理公司中的TCL公司基本理论分析与控制存在问题的探究,分析其问题出现的原因,并提出了相应的对策和建议。本文的第一部分主要介绍了研究意义以及目的等相关内容,它们是本文的理论基础。本文的第二部分详细阐述了TCL公司概述,重点对内容进行分析和把握。本文的第三部分是TCL公司在发展战略现状,本文的第四部分是TCL在越南战略选择存在的问题,第五部分是对TCL在越南战略选择的改进这都是本文研究的重要内容。根据以上的阐述和分析,本文的第六部分为第六章结论与展望,这也是本文的重点内容。针对现阶段存在的问题,分析研究得出的TCL在越南战略选择的改进,以期对今后的研究实践有一定的借鉴意义。在信息的发展的背景迅速发展之下,世界各国空间距离也不是问题。个人可以反映整个社会,而单个企业又可以代表整个国家的发展。寻找发展与生存是每个企业的目标。中国经济三十多年的改革开放在世界各国不断进行对外投资与贸易越南作为中国企业所瞄准的潜力市场本文对于既有的在越南发展成功的企业进行分析,研究中国企业怎么在越南实行国际化战略的问题,本文基于相关的国际化战略理论,在介绍回顾中国企业在越南经营情况和越南家电行业在这些年来的发展情况的基础上,以TCL为例研究,把握市场进入和市场渗透中的成功经营规律。如今更多研究倾向于企业国际化的进入模式理论研究,而针对发展中国家中某一个中国企业国际化的战略选择问题的研究较少。因此,本文主要通过中国在越南成立跨国公司的具体案例研究,发现其中存在的问题,并针对现实存在的问题提出合适的对策,以更好地帮助中国在越南设立跨国公司并很好地经营下去,同时为中国企业进军东南亚区域的战略选择提供借鉴。

关键词： TCL公司战略发展选择有效策略

Structural and luminescent properties of (Eu,Tb) PO_4·H_2O nanorods/nanowires prepared by microwave technique

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Journal of Rare Earths 2011年第12期29卷 1170-1173页

作者： Nguyen Thanh Huong Nguyen Duc Van Dinh Manh Tien Do Khanh Tung Nguyen Thanh Binh Tran kim anh Le Quoc Minh Institute of Materials Science Vietnam Academy of Science and Technology University of Engineering and Technology National University HanoiVietnam

Nanowires/nanorods of europium/terbium orthophosphate monohydrate with Eu^3＋ concentration of 6, 11, and 20 at.% were prepared by microwave synthesis method. The effects of Eu^3＋ doping concentration on structure, morphology and optical properties of nanomaterials were also investigated. The results showed that, for all studied Eu^3＋ doping concentrations, a single-crystalline phase of rhabdophane-type （Eu,Tb）PO4·H2O nanowires/nanorods was obtained by using microwave heating of an aqueous solution of terbium（Ⅲ） nitrate, europium（Ⅲ） nitrate and NH4H2PO4 with pH=2. The length and width of these nanowires/nanorods ranged from 150 to 300 nm and from 10 to 50 nm, respectively. The evidence of energy transfer from Tb^3＋ to Eu^3＋ due to the energy overlap between the donor Tb^3＋ and the acceptor Eu^3＋was observed obviously via a significant enhancement in the luminescent intensity of Eu^3＋. Keywords：

关键词： microwave technique nanowires/nanorods energy transfer fluorescence spectroscopy rare earths

Control of Nonlinear Systems with Output Tracking Error Constraints

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Journal of Measurement Science and Instrumentation 2010年第3期1卷 217-223页

作者： Khac Duc Do dang Binh Nguyen anh Duc Nguyen School of Mechanical Engineering University of Western Australia WA 6009 Australia Rectoral Office Thainguyen University of Technology Thainguyen Vietnam Department of Electrical Engineering Thainguyen University of Technology Thainguyen Vietnam

A oanstructive method is presented to design controllers that force the output of nonlinear systems in a strict feedback form to track a bounded and sufficient smooth reference trajectory asymptotically. Under suitable condition with the initial output tracking error, the proposed controllers guarantee the output tracking error within a symmtric or an asymmetric pre-specified limit range, and boundedness of all signals of the closed loop system. A transformation is inmxuced to take care of the output tracking error constraint. Smooth and/or p -times differentiable step functions are propsed and incor- porated in the output tracking error transformation to overcome difficulties due to the asynxnetric limit range on the output tracking error. As a result, there are no switchings in the proposed controllers despite of the asymmnetric limit range.

关键词： nonlinear system output constraint backstepping Lyapunov method