影响技术并购绩效的关键因素研究

 面对激烈的竞争、快速的技术更新,技术并购已经成为企业提升能力的一种重要方式。那么,技术并购到底有什么作用呢？究竟是什么因素影响企业技术并购的绩效呢？为什么技术并购行为不断增多,失败率却居高不下呢？在这三问题的指引下,基于文献综述,总结了技术并购的重要性,提出了企业技术并购绩效的影响因素之理论框架和研究命题,并为企业成功进行技术并购提出启示性建议。     

一个含临界指数的拟线性椭圆型方程的注记

研究了如下的拟线性椭圆型方程:△pu+uq+λup*-1=0,u∈W1o,p(Ω), (1λ)其中,Ω2是RN中具有光滑边界的有界区域,△pu=div( |▽u|p-2▽u),N≥3,2≤p＜N,0＜q＜1,p*=NP/N-P.设λ*(Ω,p,q)是拟线性椭圆型方程(1λ)可解的参数集的上确界.运用变分方法,在不要求具有对称性质的一般区域Ω上得到了λ*(Ω,p,q)的一个可以精确计算的下界.     

《校园王》语码转换的批评性语篇分析

上世纪70年代以来,批评语言学蓬勃发展,其杰出代表人物费尔克劳提出了三维框架理论,即描写、阐释、解释三个步骤。本文试图运用费尔克劳的三维框架理论对《校园王》中出现的语码转换进行批评性语篇分析,以揭示青年话语中语码转换的特征和青年话语中语码转换的原因。通过揭示青年话语中的语码转换特征及青年话语语码转换的原因,笔者希望能够引起教师对语码转换现象的批评意识,以及人们对青年语言特征变化的普遍关注。     

马氏体相变形核机制的研究

应用JEM-2100电镜、QUANTA-400环扫电镜对钢中马氏体相变的形核进行了观察,发现马氏体不仅可在奥氏体晶内形核,而且可在晶界、相界面等处形核。认为马氏体是在缺陷处依靠结构涨落、能量涨落形核,是晶格重构的过程,不是切变过程。研究计算了马氏体晶核的临界尺寸和形核功。     

Measuring project performance by applying social network analyses

It is often argued that the core of organizational success is efficient collaboration. Some authors even posit that efficient collaboration is more important to organizational innovation and performance than individual skills or expertise. However, the lack of efficient models to manage collaboration properly is a major constraint for organizations to profit from internal and external collaborative initiatives. Currently, much of the collaboration in organizations occurs through virtual network channels, such as e-mail, Yammer, Jabber, Microsoft Teams, Skype, and Zoom. These are even more important in situations where different time zones and even threats of a pandemic constrain face-to-face human interactions. This work introduces a multidisciplinary heuristic model developed based on project risk management and social network analysis centrality metrics graph-theory to quantitatively measure dynamic organizational collaboration in the project environment. A case study illustrates the proposed model's implementation and application in a real virtual project organizational context. The major benefit of applying this proposed model is that it enables organizations to quantitatively measure different collaborative, organizational, and dynamic behavioral patterns, which can later correlate with organizational outcomes. The model analyzes three collaborative project dimensions: network collaboration cohesion evolution, network collaboration degree evolution, and network team set variability evolution. This provides organizations an innovative approach to understand and manage possible collaborative project risks that may emerge as projects are delivered. Organizations can use the proposed model to identify projects' critical success factors by comparing successful and unsuccessful delivered projects' dynamic behaviors if a substantial number of both project types are analyzed. The proposed model also enables organizations to make decisions with more information regarding the support for changes in observed collaborative patterns as demonstrated by statistical models in general, and linear regressions in particular. Further, the proposed model provides organizations with a completely bias-free data-collection process that eliminates organizational downtime. Finally, applying the proposed model in organizations will reduce or eliminate the risks associated with virtual collaborative dynamics, leading to the optimized use of resources; this will transform organizations to become more lean-oriented and significantly contribute to economic, social, and environmental global sustainability.     

互文性视角下英语语篇解读的对话本质

互文性是语篇分析理论中的一个重要概念,对语篇秩序的再生产、再创造有极强的解释力。对人们如何运用语篇、扫清语篇使用中的障碍有着指导性作用。对英语语篇解读对话本质的分析旨在探究语篇作者对语篇的隐性操作及读者对英语语篇进行批判性接受的必要性。     

如何在大学英语教学中提高学生思辨能力简

从分析大学英语教学思辨能力的现状入手,本文探究在大学英语精读课,写作课和听力课以及选修课中学生的思辨能力的培养策略.     

单裂隙承压无压条件下达西-非达西流演变试验研究

基岩裂隙水运移机理研究对基岩裂隙水水害防治以及污染修复具有重要意义。本文设计了由水泥和粗砂（粒径介于1 mm～2 mm之间）制成的单裂隙模型,开展了承压无压条件下基岩裂隙水流试验和拟合研究,讨论了水力梯度和流速之间的关系以及Forchheimer公式中线性项和非线性项的比例变化。得出主要结论如下：（1）实验条件下的水流呈非达西流,用Forchheimer公式可以较好地拟合水力梯度和流速的关系,且拟合精度较高。（2）随着离出水口距离的增加,水流从非达西流向达西流演变,当距离足够远时可以将水流视为达西流。（3）在水流从非达西流向达西流演变过程中,临界雷诺数随着隙宽的增加逐渐减小。     

新时期群体性事件的成因分析与应对思路

近年来,我国发生了多起群体性事件,在事件发生过程中往往伴随着暴力、打砸现象,最终导致矛盾激化、事态扩大、社会不稳定因素增多,反思这些暴力群体事件,我们不难发现在市场经济环境下社会矛盾不断凸显,政府对突发事件的应急处置能力被提到新的高度,新时期各种群体之间的利益冲突和社会矛盾应当去研究,有效预防和减少群体事件的发生,构建和谐社会是当前维持社会稳定的重要内容。本文主要围绕群体性事件产生的原因,进而提出一些应对这一问题的思路。