1,020 research outputs found
Research on the Impact of Empowering Leadership on Employee Creativity Mediated by creative self-efficacy and harmonious passion
近年来,员工创造力一直受到学术界和企业界的广泛关注,尤其是如何激发员工的创造力,什么因素会影响员工创造力的绩效的问题。通过研究显示,领导行为是环境中对员工创造力有实质影响的关键因素,但哪种领导行为能够促进员工创造力还缺乏足够的了解。国内外已有许多学者从不同角度分别研究了四因素领导理论(直接型领导、交易型领导、变革型领导和授权型领导)中的直接型领导、交易型领导、变革型领导对员工创造力的影响及作用机制,对授权型领导的关注较少,本研究将针对“授权型领导如何影响员工创造力”这一基本问题研究其必要性和重要性以及作用机理。 本研究围绕企业员工创造力这一主题展开研究,在借鉴了管理学、心理学等领域的以往研究...In recent years, the employee creativity has received extensive concerns of the academia and the business, especially how to motivate the employee creativity, which factors do affect the performance of employee creativity. Through study, leadership behavior is one of the key contextual factors that has a substantial influence on employee creativity, but it is not enough to fully understand what ki...学位:管理学硕士院系专业:管理学院_企业管理学号:1762012115412
Markowitz Portfolio Model With Constrains :Applications In China And US Stock Markets
Markowitz在1952提出的证券投资组合模型,使人们能够精确计算风险与 收益的关系,并且更科学的投资。一些学者在投资组合模型上加上了约束条件, 使模型的结果更加稳定,同时还有选取股票的效果。带约束项的投资组合模型还 可以转化为线性回归模型,本文在此基础上进行更深入的实证研究。 本文运用了美国股票市场数据进行回溯测试,验证了线性回归模式的投资组 合模型的有效性,但是中国股票市场不能进行卖空交易,所以本文创新运用了非 负Lasso、非负ElasticNet的方法,使模型估计的投资权重配置不会出现卖空的 情况。 长期的价值投资非常受欢迎,投资人在进行投资组合时会考虑投资价值的大...Markowitz proposed the modern portfolio theory in 1952 which is a portfolio model that establishes a quantitative relationship between risk and return so that we can make investment in a scientific way. Some scholars have added constraints to this portfolio model to make the results of it more stable and render it useful for selecting stocks as well. These constrained portfolio models can be t...学位:应用统计硕士院系专业:王亚南经济研究院_应用统计硕士学号:2772014115278
Investigation of carrier transport and recombination in InGaN/GaN multiple quantum wells
GaN基半导体是宽禁带、直接带隙材料,具有优异的光电特性和稳定的化学性能,已被广泛的应用于发光二极管(LED)、激光二极管(LD)以及光电探测器等光电子器件。目前,GaN基蓝光和绿光LED已经在信号灯、大屏幕显示、景观照明等领域实现了大规模应用,基于蓝光LED的高亮度白光LED已成为继白炽灯和荧光灯之后的第三代照明光源,GaN基蓝紫光LD已被广泛应用于高密度光存储、激光医疗以及科学测量等领域。作为GaN基光电子器件的核心部分,InGaN/GaN多量子阱有源区也因此成为了当前半导体光电子领域的研究热点。围绕InGaN/GaN多量子阱的材料生长和物理特性研究,各国科研工作者进行了大量的研究工作。目...GaN-based direct wide band-gap semiconductor materials are being widely used in fabricating light-emitting diodes (LED), laser diodes (LD) and other optoelectronic devices for their impressive photoelectric properties and stable chemical performance. Currently, GaN-based blue/green LEDs have been widely used in large screen display, landscape lighting and other fields. GaN-based blue/ultraviolet L...学位:理学硕士院系专业:物理与机电工程学院_凝聚态物理学号:1982011115283
Design and Implementation of LAN Chat System Based on Socket
随着计算机网络技术的高速发展,各种基于网络的应用随之诞生,比如基于互联网的通信、信息发布、数据共享等等,同时也促进局域网的迅速发展和和局域网技术的广泛应用。为了高效、快速地处理各种事务,越来越多的企事业单位使用内部局域网进行工作,特别有些企业单位为了避免内部机密通过互联网泄露,只希望员工通过内部局域网进行沟通与交流。因此,为了实现内部的通信,较好的方式是在局域网内部必建立起即时通信IM(InstantMessaging),也就是聊天系统。本文基于Socket技术设计并实现一个局域网聊天系统。 本系统基于C/S模式,采用VC++编程语言,利用面向对象的设计思想, 在Windows平台上,将客...The rapid development of the information technology brings about a variety of Web-based applications, which the computer networks is applied to all businesses and trades, such as Internet-based communication, information dissemination, data sharing, and so on. At the same time, the LAN is also developed rapidly, the LAN technology has been widely used. In order to efficiently and quickly deal with...学位:工程硕士院系专业:软件学院_工程硕士(软件工程)学号:X201223028
Design and Implementation of Modern Logistics Management System Based on SSH
伴随着经济全球化的迅速发展,现代物流在国民经济体系中占据着越来越重要的地位。同时,经济的全球化又给现代物流带来了巨大的挑战。这些挑战主要涉及交通运输、信息通讯、仓储、包装和配送等环节。面对这些新的挑战,现代物流企业亟需在业务管理的流程优化及运营效率等方面有所改善和突破,这样才能降低物流成本、提高企业竞争力,以便在残酷的市场竞争中生存下来并不断发展壮大。计算机信息技术的不断成熟和各种新技术的不断涌现又为传统物流企业突破这一困局提供了机遇。如何将新的技术成果应用于现代物流管理信息系统已经成为学术界和产业界的研究热点问题。 论文以软件工程理论为指导思想,在物联网技术的大背景和SSH框架结构下,采用...The modern logistics occupy an increasingly important position in the national economic system, through the driving of rapid development economic globalization. At the same time, the globalization of economy has brought a huge challenge to modern logistics. These challenges mainly related to transportation, information and communication, storage, packaging and distribution etc. Modern logistics en...学位:工程硕士院系专业:软件学院_工程硕士(软件工程)学号:X201223076
Research on QZ mobile’s 12580 electronic commerce precision marketing
随着电信行业竞争不断加剧,传统语音通信市场逐步沦为红海。中国移动在原12580移动秘书的基础上正式推出了12580综合信息门户,它是中国移动基于语音、互联网、WAP、短信、彩信、位置服务构建的综合信息服务平台,为客户提供餐饮、娱乐、天气、交通、旅游、便民等各类信息查询与电子商务服务,是中国移动从“移动通信专家”向“移动信息专家”转型的战略性业务之一。 本文以现代营销与电子商务相关理论为基础,从分析12580面临的经营环境与发展瓶颈入手,导出其精准营销的重要性与必要性。针对QZ移动12580业务目前缺乏客户电子商务消费历史数据,从而缺少实施电子商务精准营销基础的问题,本文提出从客户电信消费行为...As the telecommunication industry competition intensifying, traditional voice telecom market is changing into Red Ocean. On the basis of 12580 Mobile Secretary, China Mobile formally launched 12580 Comprehensive Information Portal, which is a comprehensive information service platform based on voice, internet, WAP, SMS ,MMS, LBS, and provides customers all kinds of information search and electroni...学位:工商管理硕士院系专业:管理学院工商管理教育中心(MBA中心)_工商管理硕士(MBA)学号:1792009115072
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