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Search Results: 1 - 10 of 3380 matches for " Mo Chunlan "
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Effect of Surface-Covered Annealing on the Optical Properties of ZnO Films Grown by MOCVD
Wang Li,Pu Yong,Fang Wenqing,Mo Chunlan,Xiong Chuanbing,Jiang Fengyi,
Wang Li
,Pu Yong,Fang Wenqing,Mo Chunlan,Xiong Chuanbing,Jiang Fengyi

半导体学报 , 2003,
Abstract: 研究了暴露在空气中退火和表面覆盖蓝宝石基板退火对MOCVD生长的ZnO薄膜光学性质的影响. 研究发现,暴露在空气中退火虽可以去除薄膜中的氢杂质,并在低温光致发光(PL)谱中观察到与氢相关的束缚激子峰消失,但是退火后样品室温PL谱中可观察到很强的可见光发射,表明样品中引入了大量的深能级,样品的自由激子发光没有增强. 而表面覆盖蓝宝石基板退火的样品,有效去除了氢杂质,但没有观察到可见光发射,说明表面覆盖蓝宝石基板退火可以有效地保护ZnO表面不分解,不生成深能级中心. 由于激子束缚中心的减少,表面覆盖退火样品的自由激子发射大大增强.
Risk Component Based Infrastructure Debt Valuation Analysis and Long-Term Investment  [PDF]
Chunlan Wang, Satheesh Kumar Sundararajan
Journal of Financial Risk Management (JFRM) , 2016, DOI: 10.4236/jfrm.2016.53014
Abstract:
Long term financing to infrastructure and mobilization of private long term capital has been recognized as a key agenda in advancing the global economic development. There are several barriers in infrastructure financing and big gaps between expectation and reality. A highly pronounced barrier is the lacking of capacity of investors to price risks in a structured manner. This paper has discussed component-based infrastructure valuation analysis and modeling blocks. The component-based valuation mechanism is very useful for issuers and investors to categorize, analyze and price specific risks transparently and can provide a basis for structuring the risks on an ex-ante basis so as to make project investments suitable for investors of different risk preference.
Microstructure of an InGaN/GaN Multiple Quantum Well LED on Si (111) Substrate
Si衬底InGaN/GaN多量子阱LED外延材料的微结构

Li Cuiyun,Zhu Hu,Mo Chunlan,Jiang Fengyi,
李翠云
,朱华,莫春兰,江风益

半导体学报 , 2006,
Abstract: 用透射电子显微镜(TEM)和X射线双晶衍射仪(DCXRD)对在Si(111)衬底上生长的InGaN/GaN多量子阱(MQW)LED外延材料的微结构进行了观察和分析.从TEM高分辨像观察到,在Si和AlN界面处未形成SixNy非晶层,在GaN/AlN界面附近的GaN上有堆垛层错存在,多量子阱的阱(InGaN)和垒(GaN)界面明锐、厚度均匀;TEM和DCXRD进一步分析表明MQW附近n型GaN的位错密度为10acm-2量级,其中多数为b=1/3〈112-0〉的刃位错.
N-(2,4-Dinitrophenyl)-N′-[nitro(phenyl)methylene]hydrazine
Chunlan Yuan
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536808036179
Abstract: The title compound, C13H9N5O6, contains three nitro groups. It is prepared by the reaction of benzaldehyde 2,4-dinitrophenylhydrazone with nitric oxide at ambient temperature. The imine group is nearly coplanar with the (2,4-dinitrophenyl)hydrazine unit. The second benzene ring and the third nitro group are twisted away from this plane, with dihedral angles of 48.5 (3) and 15.2 (3)°, respectively. Weak intramolecular N—H...O interactions are observed.
(2,4-Dinitrophenyl)(1-methyl-1-nitroethyl)diazene
Chunlan Yuan
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536808034454
Abstract: In the title compound, C9H9N5O6, the azo group adopts a trans conformation and the dihedral angles between the two nitro groups and the benzene ring are 11.6 (3) and 21.3 (3)°.
The Cultivation Mode of Graduate Students’ English Writing Ability of Scientific Papers on Mining Engineering  [PDF]
Haiying Shen, Shuming Wen, Chunlan Liao
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.37B045
Abstract:

Up till now, the development of mining industry in China has followed the road of the overseas introduction and absorption, independent innovation and technology export. Mere English reading ability can hardly meet the demands of high-level professionals to export research achievements. To improve the graduate students’ ability to write English scientific papers on mining industry has become one of the main tasks to cultivate mining engineering professionals. Considering the current condition of China’s test-oriented education, the mode to efficiently and quickly enhance graduate students’ English writing ability of scientific papers on mining industry has been proposed, specifically, intensively reading high-level English scientific papers on mining industry, writing the Chinese version according to the requirements of the corresponding English scientific paper, rewriting the paper in English based on the Chinese version, performing language refinement and polish by experts or institutions, finally completing the paper through communication and exchange with the experts.

Empirical Research on the Relationship among Sense of Control, Control Demand and Job Burnout  [PDF]
Caihong Zhang, Chunlan Li, Fengshuo Feng
Journal of Human Resource and Sustainability Studies (JHRSS) , 2014, DOI: 10.4236/jhrss.2014.24020
Abstract: Based on the literature research, the paper proposes a relational model of sense of control, control demand and job burnout. A questionnaire survey is conducted on the enterprise employees, and 362 valid questionnaires are collected, finally using the SPSS19.0 software to analyze the collected data. The results show that 1) sense of control and control demand are correlated; 2) sense of control has a significant negative impact on the three dimensions of job burnout (exhaustion, cynicism and inefficacy); 3) control demand has significant effects on job burnout.
TEM Characterization of Defects in GaN/InGaN Multi-Quantum Wells Grown on Silicon by MOCVD
Si衬底MOCVD生长GaN/InGaN多量子阱缺陷TEM研究

Zhu Hu,Li Cuiyun,Mo Chunlan,Jiang Fengyi,Zhang Meng,
朱华
,李翠云,莫春兰,江风益,张萌

半导体学报 , 2008,
Abstract: Transmission electron microscope(TEM)measurements performed on InGaN/GaN multiple-quantum-well(MQW)deposited Silicon substrates have been investigated.By taking high-resolution transmission electron microscopy(HRTEM)imagery,electron diffraction contrast imagery,and electron diffraction image in precincts between the Si substrate and the AlN buffer area,and also taking Two-beam electron diffract contrast imagery around the quantum well area,we have researched the characteristics of dislocation.In addition,we...
Problems in Library Construction of Newly-upgraded Local Undergraduate Institutions
Chunlan Qiu,Rongsheng Wen
International Education Studies , 2008, DOI: 10.5539/ies.v1n1p110
Abstract: Based on an analysis on the features and problems in the libraries of some newly-upgraded local undergraduate institutions, this article finally comes to a series of management countermeasures.
The Characteristics of ISBN and Its Functions in Book Purchasing and Compiling
Chunlan Qiu,Yonglin Xiao
International Journal of Business and Management , 2009, DOI: 10.5539/ijbm.v3n2p97
Abstract: This paper analyzes the structure and the characteristics of ISBN and the functions of ISBN in book purchasing and compiling of libraries.
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