oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 141 )

2019 ( 874 )

2018 ( 6870 )

2017 ( 7069 )

Custom range...

Search Results: 1 - 10 of 307351 matches for " 王冬梅 "
All listed articles are free for downloading (OA Articles)
Page 1 /307351
Display every page Item
Gale-Ryser型刻划定理的一个推广
A Generalization of the Gale-Ryser Type Characterization Theorem
 [PDF]

郭纪云, 冬梅
Advances in Applied Mathematics (AAM) , 2016, DOI: 10.12677/AAM.2016.51016
Abstract: 设\"\"\"\" 是两个由非负整数构成的不增序列。如果存在一个简单X,Y-二部图使得X中的顶点的度分别为\"\"Y中的顶点的度分别为\"\" ,那么称序列对\"\" 是二部可图的。如果\"\"二部可图且任何两个来自不同部集的顶点之间最多连有t条边,那么称\"\"是t-二部可图的。本文给出一个t-二部可图序列的刻划定理。事实上,该定理是Gale-Ryser型刻划定理的一个推广。
Let \"\" and \"\" be two non-increasing sequences of nonnegative integers. The pair \"\" is said to be bigraphic if there is a simple X,Y-bigraph such that the vertices of X have degrees \"\" and the vertices of Y have degrees \"\". \"\" is said to be t-bigraphic if it is bigraphic and no two vertices from different partite sets are joined by more than t edges. In this paper, we give a characterization for \"\" to be t-bigraphic. In fact, it is a gen-eration of the Gale-Ryser type characterization theorem.
对MBA会计学教学特点的把握
冬梅
财会月刊 , 2012,
Abstract: 本文基于笔者多次开设MBA核心课会计学的经历,系统地总结了如何把握MBA会计学的教学特点,在MBA学生中有效地开展会计学的教学,尤其是案例教学。  【关键词】MBA会计学教学特点案例教学一、教学意见调查统计  笔者曾于2011年6月在自己所教授的会计学课程结束之际用匿名的形式进行了一次教学意见调查,共发放调查问卷50份,回收41份。调查结果统计见表1。从表1可以看出,对于会计学这门核心课程的教学,MBA学生最看重的方面依次为:案例教学、通俗易懂和条理性、贴近实践、会计信息的分析能力。其实,无论是案例教学,还是贴近实际和分析会计报表,指的都是培养学生的实际动手能力以及分析与解决实际问题的能力。而通俗易懂和条理性则是对任课教师课堂讲授所提出的要求。下面笔者就这几个方面详细介绍自己在MBA核心课会计学的教学过程中是怎样把握的。
实用公司理财手法介绍
冬梅
财会月刊 , 2009,
Abstract: 企业的发展是一个资金流的运动发展过程。本文对一些公司理财手法进行举例说明,为企业更好地运用资金、提高资金利用率提供借鉴。  【关键词】售后回租票据质押动产质押一、利用国际金融市场盈利  运用利率调期,公司可以将原有的利率形式转换为对自己比较有利的形式。例如,A公司在B银行的人民币贷款为50000万元。期限为2007年6月21日至2011年6月21日。A公司第一年的贷款利息总支出约为3277万元人民币,还本付息的压力较大,存在降低贷款成本的需求。根据2007年9月7日的国际市场状况,A公司与B银行拟订如下方案:  起始日:2007年6月21日  到期日:2011年3月26日
湖北省生物医药产业集群培育策略研究
冬梅
科技进步与对策 , 2009,
Abstract: 世界生物医药产业正处于生物医药技术大规模产业化的初期阶段,将进入快速发展期,并逐步成为世界经济的主导产业。在总结国内外生物医药产业集群发展规律,并深入调研湖北省生物医药产业发展现状和特征的基础上,认为应该加大对湖北省生物医药产业集群的培育力度,并系统提出了培育策略。生物医药产业产业集群湖北省培育策略
高职高专类学校包装技术与设计专业课程体系的构建
冬梅
湖南工业大学学报(社会科学版) , 2009,
Abstract: 从企业招聘的需求和技能要求看, 包装技术与设计专业毕业生应掌握三种核心职业能力, 即包装装潢设计能力、包装结构设计能力和包装材料与检测。围绕这三大核心职业能力, 高职高专类学校应按照由低到高的进阶式能力要求构建包装技术与设计专业课程体系, 以培养合格的包装企业技能型应用型人才。
髓外浆细胞瘤二例报告
冬梅
天津医药 , 2013,
Abstract: ??
evans综合征转化为急性髓细胞性白血病m11例
冬梅
天津医药 , 2012,
Abstract:
旋风脚720°接马步动作落地时致膝关节损伤的运动生物力学分析
Biomechanical Analysis of Knee Joint Injury Induced by Whirlwind Kick Swivel 720 ° Followed by Horse Stance Landing

冬梅
- , 2015, DOI: 10.19582/j.cnki.11-3785/g8.2015.03.024
Abstract: 摘要:目的:采用文献资料、专家访谈、问卷调查等研究方法,结合三维摄像测量技术,从运动生物力学视角对旋风脚720°接马步动作落地时致膝关节损伤的影响因素进行研究。方法:选取四川省武术队5名优秀运动员,针对旋风脚720°接马步动作进行三维摄像测量,获得各阶段运动参数,量化分析各阶段数据特征。结论:旋风脚720°接马步动作落地阶段致膝关节损伤具有普遍性,该动作导致膝关节损伤的主要形式有半月板、侧副韧带、交叉韧带损伤等;落地瞬间产生的冲撞力是旋风脚720°接马步动作落地时致膝关节损伤的主要因素,决定落地瞬间冲撞力的影响因素主要是运动员的体重、腾空高度及落地方式;体重是相对不变的量,而腾空高度决定该动作的完成质量,腾空越高,动作质量越高,同时为落地阶段赢得缓冲时间;在体重和腾空高度一定时,人体可以在落地阶段通过调整肢体动作来改变转动惯量和左右膝角的大小,延缓落地过程的时间,达到减少冲撞力峰值目的,以获得合理的缓冲保护膝关节。
Abstract: Purpose: The purpose of this study was to explore the influencing factors of knee joint injury induced by whirlwind kick swivel 720° followed by horse stance landing from a biomechanical perspective, by the methods of literature review, expert interview, questionnaire investigation, as well as 3-D technology. Methods: Five elite athletes from Sichuan Wushu team were selected as subjects, their movement of whirlwind kick swivel 720° followed by horse stance landing was measured by 3-D imaging, data of the phases of this movement was collected and phase characteristic of the movement was analyzed. Conclusions: The knee joint injury induced by the movement of whirlwind kick swivel 720° followed by horse stance landing is common, the main injuries are meniscus injury, the lateral collateral ligament injury and cruciate ligament injury. The impulse force generated by landing is a key factor of knee joint injury, and the influencing factors of this impulse force are athlete’s boy weight, flight height and landing type. Weight is relatively stable, and flight height determines the quality of the movement. Higher flight gains higher quality of the movement, and more time of the landing. If the body weight and flight height are stable, athlete can adjust the body movement to change the moment of inertia and both knees angle in landing phase for prolonging the landing time and lowering the peak value of landing impulse force, which could be reasonable for protecting the knee joint
升温速率对生物质与煤共热解特性影响的试验研究
Experiment for Heating Rate on Pyrolysis Characteristics of Biomass-coal Mixture
 [PDF]

何青, ,冬梅
Sustainable Development (SD) , 2011, DOI: 10.12677/sd.2011.11004
Abstract: 采用热重分析法,在不同升温速率下,对生物质、煤以及生物质与煤的混合物进行热解试验,分析了升温速率对热解过程的影响,研究了生物质与煤热解特性的差异以及他们共热解时生物质对煤热解过程的影响。试验结果表明,随着升温速率的升高,热重曲线向温度高侧移动,生物质与煤的热解特性差异很大,并且在生物质与煤混合热解时,总体热解特性分阶段呈现生物质与煤的热解特性。
The pyrolysis experiment on biomass, coal and biomass-coal mixture with various heating rates were carried out and analyzed by thermo-gravimetric analysis method. The effects of heating rates on the process of pyrolysis characteristics of biomass, coal and biomass-coal mixture were obtained and analyzed. The experiment results showed that the thermo-gravimetric curves move to the high-side of temperature while heating rate increases, there is a large different characteristic between biomass and coal, and the pyrolysis characteristic of biomass-coal mixture occur separately the characteristics of biomass or coal at different stages.
Method to Improve Real-time Displaying virtual Scene in Network Environment
网络环境下改善虚拟场景实时显示的方法

冬梅,
计算机系统应用 , 2004,
Abstract: 本文针对基于网络环境的大型虚拟场景的实时显示问题,从减少可视多边形的个数及动态控制场景的生成两个方面,提出了相应的技术解决方案并给出了相关的算法.最后给出了在VRML中影响场景生成速度的其他因素.
Page 1 /307351
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.