多重网络中的创意扩散模型研究

基于线上线下多种渠道的创意扩散研究是企业管理的新兴研究热点之一.为此,引入多重网络理论与传播动力学理论,考虑工作中线下沟通、工作中通过企业社交媒体在线沟通及非工作时间电子沟通三种渠道,构建多种渠道构成的多重网络中的创意扩散模型.研究创意在多重网络中持续扩散的阈值条件,并对创意在多重网络中的扩散过程进行仿真实验.结果表明:1)当员工在单位时间内通过以上各渠道沟通的平均次数较接近时,在多重网络中创意扩散的速度较快,创意扩散的范围较广;2)与匀质网络相比,当非工作时间电子沟通子网络是无标度网络时,在多重网络中创意扩散的速度较快,扩散的范围较广;3)增大子网络层间创意扩散的相互促进作用对整个多重网络中创意的有效扩散有积极影响.     

对高校道德实践教育的探讨

文章从道德教育的实践要求、特征、途径等方面，阐述了道德实践在道德教育过程中的地位和作用，并从高校道德教育实际出发，提出了加强道德实践训练的有关措施与方法。     

微波与生物组织的相互作用及微波理疗中若干实际考虑

本文论述了描述微波与生物组织相互作用的数学表达式,讨论工作频率选择、透入深度、反射、极化、泄漏及防护等实际问题。     

福州盆地南北港冲淤规律与洪涝灾害对策

本文探讨了福州盆地南北港冲淤规律，近年来北港洪水分流量呈上升趋势，洪峰对北港的压力加大，文中还对福州城防洪涝灾害的措施等方面作了研究。     

Mechanism of Microwave Effects on Conductivity of Solution

The relation between microwave conductivity and normal conductivity of solution is compared in this thesis. By building mathematical model and theoretical analyses, it indicates that the relationship of in situ conductivity of solution in microwave field and temperature is similar to that in non-microwave field. It can be expressed by quadratic equation but the values of both conductivities are different. Microwave field has effect on the mean path δ or hot vibrational frequency v of ions in solution. In microwave field, the mean energy barrier, which ions must surmount as they transit, is the function relation to temperature.     

微波辐射合成7-羟基-4-甲基香豆素

以浓硫酸为催化剂，采用微波辐射技术，由间苯二酚与乙酰乙酸乙酯缩合制备7－羟基－4－4甲基香豆素。结果表明，微波辐射合成7－羟基－4－4甲基香豆素的最以应条件为：间苯二酚5.5g，乙酰乙酸乙酯6.8ml，浓硫酸1.5ml，微波功率240W，微波辐射时间6min，产率84．1％，不采用微波辐射，反应时间大于10h，产率78％，红外光谱分析表明，7－羟基－4－4甲基香豆素的特征峰与7－羟基－4－甲基香豆素的各官能团的吸收峰吻合，测定7－羟基－4－甲基香豆素的熔点为189－192℃。     

一种减小反射式0－π调相器尺寸的新方法

在微波频率低端，按常规方法研制的调相器尺寸是大的，该文采用金属化孔和改变调整元件，结果证明，在不降低性能指标的情况下，可以减小调相器的尺寸。     

固定无线传输中的公务系统

讨论了固定无线传输干线上中、大容量数字微波系统中的公务系统，并研制了一种性能优于现有单话路系统的３话路公务系统。采用集成度高的开关电容滤波器，构成高阶分路滤波器；还提出了数字公务系统的构成、７０４ｋｂ／ｓ复接帧的帧结构及实现方案。     

微波等离子体离子化检测器研究

本文采用氢气为载气和等离子体工作气体，以苯和二氧化碳为例，对不同电离电位样品组分经过和不经过等离子体两种样品引入检测器方式进行了详细的对比研究，发现检测器分别具有质量型和浓度型检测器的响应特征．探讨了空气引人等离子体对检测器分析性能的影响．     

Monitoring the sandstorm during spring season 2002 and desertification in northern China using SSM/I data and Getis statistics

A massive sandstorm enveloped most part of northern China during the spring season 2002. Monitoring the evolution of sandstorm and desertification has become one of the most serious problems for China's environment. Since 1989, one of the most advanced and operational passive microwave sensors is the DMSP SSM/I (special sensor microwave imager) operated at seven channels (19, 37, 85 GHz with the vertical and horizontal polarization and 22 GHz with vertical polarization only). In this paper, the sandstorm and desertification indexes, SDI and DI, are derived from the radiative transfer equation, and are employed with multi-channel measurements of the DMSP SSM/I for monitoring the sandstorm and desertification in northern China. Some SSM/I data in 1997 and 2001 are employed. The algorithm of Getis statistics is developed to categorize the spatial correlation and its evolution these days. It is demonstrated that the SSM/I indexes, SDI and DI, and its Getis statistics are well applicable for monitoring the sandstorm and desertification.