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Search Results: 1 - 10 of 79226 matches for " SUN Xiao-Min "
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Aerodynamic Model Analysis and Flight Simulation Research of UAV Based on Simulink  [PDF]
Chao Yun, Xiao-Min Li
Journal of Software Engineering and Applications (JSEA) , 2013, DOI: 10.4236/jsea.2013.62007
Abstract:

Mathematical simulation method can be adopted to check flight characteristic of UAV, also can be adopted to simulate hardware experiments of unmanned aerial vehicle (UAV), then related flight experiments can be performed. The simulation method can reduce the flight periods, cost and risk. UAV flight model research play an important role in simulation and modeling in initialize periods of the UAV producing. The study of the paper focuses on the aerodynamic force modeling work of UAV based on Simulink. The designed model not only can afford mathematics simulation experiment but also will do benefits to the research of flight control, navigation guidance of UAV.

Improved method for image denoising based on fractal image coding
一种改进的基于分形编码的图像去噪方法

SUN Xiao-min,LIU Xiao-xian,
孙小敏
,刘孝贤

计算机应用 , 2006,
Abstract: Fractal image denoising is a novel approach of image processing which can be applied for image denoising through estimating the noise variance and fractal encoding parameters of original image from the noise image. On the basis of this approach, the block effect brought by fractal encoding was weakened. Experimental results show that the resulting fractal code yields a significantly enhanced and restored representation of the original noisy image with an acceptable PSNR.
A Many-faceted Rasch Model Analysis of Structured Interview
多面Rasch模型在结构化面试中的应用

SUN Xiao-Min,XUE Gang,
孙晓敏
,薛刚

心理学报 , 2008,
Abstract: 使用项目反应理论中的多面Rasch模型,对66名考生在结构化面试中的成绩进行分析,剔除了由于评委等具体测量情境因素引入的误差对原始分数的影响,得到考生的能力估计值以及个体水平的评分者一致性信息.对基于考生能力估计值和考生面试分得到的决策结果进行比较,发现测量误差的确对决策造成影响,对个别考生的影响甚至相当巨大.进一步使用Facets偏差分析以及评委宽严程度的Facets分析追踪误差源.结果表明,将来自不同面试组的被试进行面试原始成绩的直接比较,评委的自身一致性和评委彼此之间在宽严程度上的差异均将导致误差.研究表明,采用Facets的考生能力估计值作为决策的依据将提高选拔的有效性.同时,Facets分析得到的考生个体层次的评分者一致性指标,以及评委与考生的偏差分析等研究结果还可以为面试误差来源的定位提供详细的诊断信息.
A Review of Study on Self-management
自我管理研究回顾与展望

SUN Xiao-Min,XUE Gang,
孙晓敏
,薛刚

心理科学进展 , 2008,
Abstract: 自我管理是个体主动应用认知及行为策略对自身的思维、情绪、行为以及所处环境等进行目标管理的过程.自我管理对于人们的学习、生活、毕生发展等有着非常重要的意义.该文通过对自我管理的概念、理论基础、评估方法及已有的测量工具等内容的系统回顾,总结了自我管理强调个体的主动性、目标导向性以及行为和认知策略的运用等特点,在对已有研究存在的主要不足进行分析的基础上,指出自我管理研究将更加关注普通正常个体的整体自我管理水平的测量和培训.
Research of Software Component for Open Embedded Automotive Application
车用嵌入式开放系统的软构件研究

LUAN Xin-ying,SUN Xiao-min,
栾鑫颖
,孙晓民

计算机应用研究 , 2006,
Abstract: Software for embedded system is hard to maintain, update and customize. However, Component-based software engineering would bring a number of advantages to the embedded applications. The characteristics and mechanism of embedded software component are analyzed in detail. The embedded software component based on OSEK standard for automotive and its development tools are presented and discussed.
Design and Implementation of EBAS Message Distribution Component
应用服务器消息分发组件的设计与实现

SUN Qian,ZHO Xiao-Min,MA Tuo,
孙倩
,朱晓民,马拓

计算机系统应用 , 2010,
Abstract: This paper introduces the application server EBAS (EB Application Server) and makes an analysis of the shortcomings of its existence. Then, it designs a module of distributing the message components accordingly, to achieve distribution and load sharing of messages. It expounds the structure of news distribution and the processing logic, including the message distribution components interaction with external entities, the rules to safeguard the state guidelines for external entities and the strategy to distinguish restart from reconnect of external entities. EBAS with message distribution component is more reliable, supportive of online non-destructive upgrade and more suitable for the service model with large capacity and high concurrency.
3-(2-Chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethyl-N-[3-(trifluoromethyl)phenyl]cyclopropanecarboxamide
Guo-Wu Rao,Xiao-Min Li,Na-Bo Sun
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536812020922
Abstract: In the title molecule, C16H14ClF6NO, the cyclopropane ring forms a dihedral angle of 70.82 (18)° with the benzene ring. The torsion angles about the ethylene and amide bonds are 2.2 (5) (Cl—C—C—C) and 0.8 (5)° (O—C—N—C). A supramolecular chain propagated by glide symmetry along [001] and mediated by N—H...O hydrogen bonds is observed in the crystal packing.
Experience of ZHANG Jian-Qiu in treating "extraordinary meridian diseases" based on syndrome differentiation of miscellaneous diseases
CHENG Xiao-Min
Zhong Xi Yi Jie He Xue Bao , 2003,
Abstract:
Time-spatial variability of ammonium and nitrate in farmland soil of Taihu Lake region
太湖地区农田土壤中铵态氮和硝态氮的时空变异

Chen Xiao-min,Wu Hua-shan,Sun Jing-hong,
Chen XM
,Wu HS,Sun JH

环境科学 , 2006,
Abstract: Time-spatial variability of ammonium and nitrate in soil profiles of farmland soil(three main paddy soils: White soil,Huangni soil and Wushan soil) during wheat and rice growth was studied.The results were as follows: the ammonium content was high in February and September and low in April and November in 2004.The spatial variability of ammonium content in soil profiles was gradually decreased from surface soil layer to bottom soil layer.It was stable below 40 cm.The nitrate content was lower than the ammonium content.The nitrate content of the wheat growth season(dry cultivation) was higher than that of the rice growth season(water cultivation) in a year.The spatial variability of the nitrate content in soil profiles was quickly decreased from surface soil layer to bottom soil layer during dry cultivation.But during the rice growth season,the nitrate content of the surface soil layer in soil profiles was lower than that of bottom soil layer.It was leaching phenomenon of nitrate.The nitrate content was in a sharp positive relation with the ammonium and changed with exponential function during dry cultivation.But there was not this relationship during water cultivation.The ammonium and nitrate were significant relation with soil organic matter in straight line.But the ammonium and nitrate content decreased with the soil clay content and pH value increased and changed with logarithmic function.
Research on Induction-Deduction Asymmetry in Social Cognition
社会认知中归纳推论-演绎推论的不对称性现象

DU Wei,YAN Chun-Ping,SUN Xiao-Min,
杜卫
,闫春平,孙晓敏

心理科学进展 , 2009,
Abstract: 在社会知觉中,人们会较多的根据个体的行为表现推论其所具有的人格特质(归纳推论),较少根据人格特质来推论个体的行为表现(演绎推论),Maass将这一现象命名为归纳推论-演绎推论的不对称性,并在西方文化下验证了这一现象。刻板印象在这一不对称性现象中起着调节作用,行为信息与刻板印象是否一致影响了归纳推论,对与刻板印象一致的信息更易做出归纳推论,而对演绎推论没有影响。在不同的文化背景下,归纳推论-演绎推论的不对称性表现存在差异,东方文化下的个体对两种推论过程没有表现出明显的倾向性。本文介绍了这一现象的表现,并总结了产生这一社会现象的内在原因及相关的研究进展。
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