加强高校班级管理 促进高校班级建设

高校的班级建设对大学生的全面健康发展起着有效的作用。文章主要从班风建设、班级凝聚力建设、班级干部选拔任用、班级建设的考评四个方面来具体论述。     

淡水真菌多样性及研究进展概述

本文旨在介绍淡水真菌,简要地讨论了淡水真菌的研究历史、作用、形态、分类以及中国的研究现状。淡水真菌是潜在的物质分解者和化学生产者,我们希望广大读者能对淡水真菌学领域产生浓厚的兴趣。     

物理化学教学过程中的改革与探索

物理化学课是高等学校材料类专业重要的学科基础课。本文通过对物理化学课程的教学内容、教学方法、教学思想和实验教学等方面进行改革与探索,从而激发学生学习的积极性和主动性,更有效地提高物理化学课程的授课质量。     

Stochastic error simulation method of fiber optic gyros based on performance indicators

Gyro simulation is an important process of inertial navigation theory research, with the major difficulty being the stochastic error modeling. One commonly used stochastic model for a fiber optic gyro (FOG) is a Gaussian white (GW) noise plus a first order Markov process. The model parameters are usually obtained by using time series analysis methods or the Allan variance method through FOG static experiment. However, in a real life situation, a FOG may not be used. In this paper, a simulation method is proposed for estimating the stochastic errors of FOG. When using this method, the model parameters are set based on performance indicators, which are chosen as the angle random walk (ARW) and bias stability. During the research, the ARW and bias stability indicators of the GW noise and the first order Markov process are analyzed separately. Their analytical expressions are derived to reveal the relation between the model parameters and performance indicators. In order to verify the theory, a large number of simulations were carried out. The results show that the statistical performance indicators of the simulated signals are consistent with the theory. Furthermore, a simulation of a VG951 FOG is designed in this research. The Allan variance curve of the simulated signal is in agreement with the real one.     

When do firms rely on their knowledge spillover recipients for guidance in exploring unfamiliar knowledge?

Knowledge spillover occurs when recipient firms combine the knowledge of an originating firm with other knowledge. When recipient firms combine the originating firm's knowledge with knowledge that is unfamiliar to the originating firm, the recipient firms potentially provide insight to the originating firm on the viability of exploring such knowledge. By mimicking its recipient firms, the originating firm reduces the challenge and uncertainty of exploring unfamiliar knowledge domains. We examine the exploration activities of 87 telecommunications equipment manufacturers over a ten-year time period. We argue that those firms that operate in competitive and dynamic market environments promoting conservative risk-taking behavior will value such uncertainty reduction more highly and thus rely to a greater extent on their recipient firms for guidance on where to explore for new expertise. In contrast, firms in high-growth market environments are more likely to look beyond the activities of recipient firms when exploring new technological domains and rely less on mimicking their recipient firms.     

基于组织绩效的研发机构治理深化机制研究

组织绩效提升是当前研发机构治理深化的重要方向,而不同渠道来源的经费及其所占比重对研究机构组织绩效的影响是不同的。财政项目资金整体预算分配方法是经费结构化治理深化背景下组织绩效提升的一种新尝试。通过分析研发机构组织绩效与经费结构化治理内在关系,重点借鉴德国弗朗霍夫和台湾工研院等国际著名研发机构在经费结构化治理经验,通过财政项目资金整体预算分配方法探索实现研发机构治理深化在预算决策机制方面的机制创新,实现提升研究机构组织绩效的目的。     

基于RUSLE模型的南方丘陵山区土壤侵蚀研究

土壤侵蚀已成为世界范围内的生态环境问题,是水土保持的重要内容。本文基于GIS技术和RUSLE模型对南方丘陵山区4个主要省份——湖南、江西、浙江和福建的土壤侵蚀状况进行了定量研究,分析了土壤侵蚀空间分布特征以及与坡度、海拔间的关系。结果表明:研究区内年均土壤侵蚀量为2.46亿t/a,平均土壤侵蚀模数为421.81t/(km2?a);研究区水土保持状况良好,土壤侵蚀面积中,只有13.41%的面积存在着较高程度的侵蚀,局部区域表现为强烈侵蚀;空间上,湖南和江西的土壤侵蚀呈现块状分布,浙江和福建的土壤侵蚀则呈现出点状分布,湖南整体的水土保持状况不如其他3个省份;研究区内土壤侵蚀与坡度和海拔关系密切,微度侵蚀在各海拔和坡度等级下分布面积最大(均大于75%),强度以上的侵蚀分布面积很小(均小于1.5%),坡度15~25°和海拔200~500m的区域是研究区内土壤侵蚀最为强烈的区域。     

建设工程招投标管理系统功能设计研究

简述招标投标工作重要性,并对系统需求进行分析,提出招投标管理系统的设计思想和功能,并指出系统使用可减少工作量,带来较好的经济效益和社会效益。     

开放视角下企业的知识治理和隐性知识共享

    隐性知识为企业技术创新及可持续发展提供了支撑,共享、整合和利用企业内外部隐性知识的研究得到学者们的广泛关注,但现有文献对如何促进组织间隐性知识共享的关注甚少。本文选取中国东部地区的186家知识密集型企业为调查对象,探讨开放情境下核心企业的知识治理与组织间隐性知识共享的关系。研究发现：知识治理对组织间隐性知识共享具有正向影响,组织开放度在市场型和层级型知识治理对组织间隐性知识共享的影响中均具有显著的调节作用,但在社会型知识治理对组织间知识共享影响中的调节作用不显著。该研究可为企业在创新网络中获得基于知识治理的创新和竞争优势提供借鉴。     

少数民族流动人口子女思想政治教育问题的原因及对策探析

加强流动人口中少数民族的思想政治教育,对于构建社会主义和谐社会具有重要而深远的意义。当前流动人口中少数民族子女思想政治教育工作存在很多问题,究其原因主要有宗教思想的根深蒂固、家庭和学校教育的影响等。如何加强少数民族流动人口子女的思想政治教育问题,需要国家、学校、社会以及家庭共同的努力。