两权分离、管理者背景特征和创新强度——基于创业板上市公司的经验证据

以深圳证券市场2009~2014年创业板上市公司为研究样本,考察控制权和现金流权分离、管理者背景特征和公司创新强度之间的关系。实证检验的结果显示,管理层和董事长的背景特征对公司创新强度产生了显著影响,表明管理者背景特征是影响公司创新的重要因素。进一步,在区分控制权和现金流权是否存在分离的分析中,研究表明,两权分离对管理者背景特征和创新强度之间的关系产生明显的影响,表现出抑制的作用。     

Three steps in knowledge communication: the emergence of knowledge transformers

The purpose of this paper is to reexamine the role of gatekeeper in R&D organizations through the data collected from a midium-sized machine tool firm. Although the related literature points out (1) information gathering and (2) information transmitting functions as main roles of gatekeeper, this paper further suggests (3) knowledge transforming function that has to be executed within R&D organizations. We will argue that since the latter function often requires distinctive skills that impede information gathering activities, there emerges a three-step flow of communication instead of a two-step flow of communication. We define persons fulfilling this new role as a knowledge transformer, and related testable hypotheses are derived. The latter part of this paper proposes new measuring methods that identify knowledge transformers and test these hypotheses.     

基于视觉传感与图像处理技术的焊接过程控制技术

随着视觉传感、图像处理和人工智能等技术的发展,计算机视觉以其信息量大、精度高、通用性好、检测范围大等特点,在焊接领域得到了广泛的应用。本文简要地介绍了目前的计算机视觉技术和方法,综述了该技术在焊接过程控制中的典型应用。     

提高鑫汇金矿200吨选厂选矿回收率的途径探讨

论述了鑫汇金矿的工艺矿物学特性,矿石性质,研究结果表明,提高磨矿细度及最佳的药剂制度是实现矿物回收的关键。本文就进一步提高选矿回收率的方法和途径进行探讨。     

经济全球化条件下FDI流动机制及其跨国公司在苏州投资的产业和空间特征研究

本文在文献综述的基础上归纳出传统FDI流动机制的研究框架。在分析了FDI流动的新背景后,本文给出了经济全球化条件下FDI流动机制研究的新框架,并对世界500强跨国公司在苏州投资的产业和空间结构进行了实证分析,总结出跨国公司在苏州投资的一系列投资特征,包括国别来源特征、产业特征以及投资区域特征等。     

人才内部流动的风险研究

人才内部流动风险是人力资源风险的重要组成部分.从风险因素分析、风险评估与风险控制三个方面详细探讨了人才内部流动风险,提出用人才岗位匹配度来表述风险事件发生的概率水平,用岗位相对价值表述风险事件发生所产生后果的相对大小,从而把人才内部流动风险看作人才岗位匹配度与岗位相对价值的函数.     

基于生命周期的知识链管理研究

阐释了知识链及其生命周期,将知识链的生命周期划分为酝酿期、组建期、运行期、解体期四个阶段,分析了生命周期各阶段中知识链管理的流程和内容,构建了基于生命周期的知识链管理框架模型。     

重大工程结构智能传感网络与健康监测系统的研究与应用

本文重点介绍了我国,特别是哈尔滨工业大学近年来有关重大工程结\\r 构智能传感网络与健康监测系统的一些研究与应用成果。主要内容包括：光纤光栅应变和温 度传感器、压电薄膜（PVDF）应变和裂缝监测传感器、疲劳累积传感器、形状记忆合金传感 器等智能传感器研究与应用; 无线传感器网络与无线传输技术及其工程应用; 碳纤维筋式 传感器与纤维增强?光纤光栅复合筋式应变传感器研究开发与应用;碳纤维和(或)纳米粒子 添料 形成的自感知水泥砂浆及其混凝土标准应变传感器的研究与开发;智能健康监测系统及其在 海洋平台结构、混凝土坝面、大跨桥梁以及大跨空间结构等实际工程中的应用。最后,介绍 了我国在重大工程结构智能健康监测领域方面研究立项的情况,并指出了进一步值得研究的 一些问题。     

Enumeration of lymphocyte subsets using flow cytometry: Effect of storage before and after staining in a developing country setting

Lymphocyte subset estimations by flow cytometry in population-based studies require transportation of samples from the field site to the laboratory. As samples arrive late in the day they have to wait overnight before being processed. The effect of two possible approaches, sample storage for 24 h before staining and immediate staining with analysis after 24 h and 48 h were evaluated. Two sets of experiments were performed with EDTA (ethylenediamine tetra-acetate) anticoagulated peripheral blood. In the first experiment, after collection, each sample was divided into two portions. One portion was stained at the time of blood collection and the other 24 h later after keeping it at room temperature (38–45°C). In the second experiment, blood samples were stained within 1–2 h. Each sample was analyzed immediately upon completion of staining process and subsequently after 24 h and 48 h of storage at 4°C. Results suggest that blood collected in EDTA can be processed using whole blood lysis method, after storage at room temperature (38–45°C) for 24 h with some but not significant alteration in T-cell subsets. Storage at 4°C after staining for 24 h results in a lesser and insignificant loss of cells or alteration of T-cell subsets and may be the method of choice.     

地铁客流分流模型

本文针对北京地铁系统现存的问题,解决满载率和运营成本的矛盾,使系统更加高效运行,建立了一个地铁客流分流的初始模型,运用统计学和数学知识得到严密的算法,并在计算机上用实际数据进行模拟与测试。