影响销售创造力和销售绩效的双路径模型

基于创造力的双路径模型,探讨动机能否通过灵活性和坚持性这2条路径影响销售创造力和销售绩效.基于212名销售人员数据的路径分析结果显示,内部动机和亲社会动机经由灵活性显著预测销售创造力进而影响销售绩效,而坚持性则显著影响销售绩效但不能显著预测创造力,销售创造力与销售绩效正相关.在现实情境下应用创造力的双路径模型,并将销售绩效纳入研究框架,拓宽了模型的普适性.     

一种新型机械式延时自闭水嘴的设计与操作性能分析

针对目前市场上延时自闭水嘴在操作性能上的不足, 设计了一种新型机械式延时自闭水嘴. 对该水嘴启闭过程中的操作性能和延时性能进行分析, 得到了水嘴操作力矩、延时时间与卷簧结构参数之间的函数关系, 并提出了水嘴操作力矩的大小与变动率优化模型. 以操作力轻便、稳定为指标, 得到了水嘴延时组件结构参数的最优组合解. 结果表明: 参数优化后的水嘴最大操作力矩为374N?mm, 且趋于稳定, 性能明显提高.     

Bandwidth allocation for guaranteed versus best effort service categories

Modern communication networks evolve towards integration of guaranteed-performance and best-effort service types. The coexistence of these two service types offers substantial benefits, such as resource sharing between service classes, and the ability of the user to select an appropriate service class according to its individual requirements and preferences. Notwithstanding, such interaction gives rise to more complicated system behavior and related performance issues, which need to be explored and understood in order to allow efficient network operation. In this paper we examine potential congestion phenomena, which arise due to the combined effect of bandwidth sharing and user migration between service classes. We propose a simplified fluid model for session flow, consisting of two coupled queues with state-dependent flows, which captures the essential ingredients of service-class interaction. Our analysis shows that the system might exhibit bistable behavior, in the sense that transient congestion may stir the system from a stable and efficient operating point to an inefficient and congested one. We identify conditions which give rise to bistability, and propose a call admission control scheme which prevents the system from getting trapped in a congested-type equilibrium, while not interfering with normal system operation. This revised version was published online in June 2006 with corrections to the Cover Date.     

Running time experiments on some algorithms for solving propositional satisfiability problems

Satisfiability problems are of importance for many practical problems. They are NP-complete problems. However, some instances of the SAT problem can be solved efficiently. This paper reports on a study concerning the behaviour of a variety of algorithmic approaches to this problem tested on a set of problems collected at FAW. The results obtained give a lot of insight into the algorithms and problems, yet also show some general technical and methodological problems associated with such comparisons.     

信标信号频谱在接收机跟踪性能分析上的应用

接收机锁定卫星信标后,经过二次或三次变频将C频段信标转变为70 MHz中频,然后通过解调单元从中频中提取误差信号。通过分析比较信标信号、L频段频率、70 MHz中频信号频谱使跟踪系统的性能指标层次化,从信标频谱中提取有用信息,全面判断数字接收机跟踪性能,对单脉冲跟踪体制下的接收机故障排查具有一定的指导意义。     

Application Aware Topology Generation for Surface Wave Networks-on-Chip

The networks-on-chip （NoC） communication has an increasingly larger impact on the system power consumption and performance. Emerging technologies, like surface wave, are believed to have lower transmission latency and power consumption over the conventional wireless NoC. Therefore, this paper studies how to optimize the network performance and power consumption by giving the packet-switching fabric and traffic pattern of each application. Compared with the conventional method of wire-linked, which adds wireless transceivers by using the genetic algorithm （GA）, the proposed maximal declining sorting algorithm （MDSA） can effectively reduce time consumption by as much as 20.4% to 35.6%. We also evaluate the power consumption and configuration time to prove the effective of the proposed algorithm.     

Effect of current on the microstructure and performance of (Bi_2Te_3)_(0.2)(Sb_2Te_3)_(0.8) thermoelectric material via field activated and pressure assisted sintering

(Bi_2Te_3)_(0.2)(Sb_2Te_3)_(0.8) thermoelectric material was sintered via a field activated and pressure assisted sintering(FAPAS) process.By applying different current intensity(0,60,320 A/cm~2) in the sintering process,the effects of electric current on the microstructure and thermoelectric performance were investigated.This demonstrated that the application of electric current in the sintering process could significantly improve the uniformity and density of(Bi_2Te_3)_(0.2)(Sb_2Te_3)_(0.8) samples.Whe...     

基于椭圆球面波的非正弦解调方法及性能分析

为了解决基于椭圆球面波的非正弦通信系统收信端数据解调问题,提出了基于椭圆球面波的非正弦解调方法。该解调方法由相关解调器和基于最小距离检测准则的检测器组成,对解调方法的最佳性进行了证明,对理论误码率进行了推导和仿真。理论分析和仿真结果表明,在加性高斯白噪声信道和发送数据先验概率相等的情况下,基于椭圆球面波的非正弦解调方法是最佳的,该解调方法能使收信端数据正确判决概率最大,错误判决概率最小。     

面向智能电网的云数据处理系统评价方法

智能电网数据处理系统需要存储从巨量设备端点周期性采集到的海量数据,处理高度并发的读写请求,并要求系统具有良好的可扩展性.新兴的云数据服务系统为我们提供了很好的选择.但是现在云数据服务系统种类繁多,各方面的性能存在差异,如何选择合适的云数据服务系统成为关键问题.基于智能用电场景,提出了一种对云数据服务系统的性能评价和分析方法,并利用该方法评测HBase、Voldemort和Cassandra三者的性能.     

信息技术下大学物理实验“三步骤”教学探讨

信息技术的快速发展使实验教学过程的改变成为可能,针对实验教学中的两个薄弱环节,我们将CAI实验教学课件、计算机网络技术、以及传统的实验教学手段结合在一起,对普通物理实验教学过程进行了改革.实施过程主要分为以下3个步骤:1) 使用CAI课件对实验原理的难点进行动态分析;2) 学生利用计算机进行交互模拟实验操作;3) 进行真实实验--更注重解决问题能力的培养和提高.