国外采用ISO9000族系列标准促进质量信息管理与反馈过程建立简介

介绍国外质量管理与标准化紧密结合，促进建立质量管理与信息反馈机制的做法。     

宽带自适应MIMO-DFE空时接收机

设计了频率选择信道基于RLS算法的自适应判决反馈均衡MIMO-DFE空时接收机,由于这种接收机不需要信道识别,从而降低了接收机的复杂度。通过蒙特卡罗仿真评估了接收机在频率选择信道下的误符号率性能。仿真结果表明,在不加信道编码的情况下,该接收机在信噪比为 14dB时误符号率达到 10-3以下。     

The impact of supervisory adaptive selling and supervisory feedback on salesperson performance

The paper investigated the moderating effects of supervisory adaptive selling behaviors on the feedback-performance relationship in industrial salespersons. A conceptual model was developed and three research hypotheses were empirically examined. The data were collected via a survey of a national random sample of industrial salespersons in US. The results indicated that adaptive selling behaviors by sales managers moderated the effects of positive behavioral feedback on salesperson performance. Positive output feedback had a significantly positive effect on salesperson performance, whereas negative feedback (output and behavior) was unrelated to salesperson performance. Thus, sales managers can improve the productivity of their salespeople by demonstrating adaptive selling techniques while providing positive feedback to them. Managerial implications were discussed.     

基于压缩感知的信道反馈重构

在大规模多输入多输出(Multiple-Input Multiple-Output,MIMO)系统中,基于压缩感知技术(Compressed Sensing,CS)开发高效的信道状态信息(Channel State Information,CSI) 反馈方案是现在研究的热点。针对现有的基于CS的信道反馈重构算法——正交匹配追踪(Orthogonal Matching Pursuit,OMP)算法存在重构时间长、数据量大可能会无法适用的不足,提出了一种改进的OMP算法,即广义正交匹配追踪(Generalized OMP,GOMP)算法对CSI进行高效重构。仿真结果表明,GOMP算法在重构精确度上高于OMP算法,特别是在较低的压缩比下优势更为突出;而且由于迭代次数减少,需要的重构时间也显著减少。     

汇改进程中的人民币兑欧元汇率行为研究

在逐步放弃钉住美元的人民币汇率的市场化改革进程中,其汇率行为表现出日益复杂的特征。特别是受近期全球性金融危机的冲击,人民币兑以欧元为代表的非美元货币汇率行为的复杂性明显加剧。在对汇率系统进行非线性检验和混沌性判别的基础上,将一种改进的相空间重构C-C算法与层反馈网络结合建模的汇率行为研究方法,能够为2005年汇改以来的人民币兑欧元汇率行为提供较为准确的描述与预测。     

360度绩效考评方法研究评述

360度绩效考评方法是目前广受国内外企业界高度关注的个人能力和企业绩效评价方法,它以心理测量学的真分数理论为基础,以促进个人发展、重视信息反馈、讲求实事求是和全方位、多角度观察问题为核心理念,有特定的适用范围和实施程序。虽然该方法目前还存在着较多应用性问题,但它有着重大的现实意义。针对目前该理论研究中所存在的种种困惑,未来应着重加强对该理论的网络化应用、适应性和与其他考评方法相结合的综合应用研究。     

The M/G/∞ Queueing Model for Optimistic Concurrency Control

The M / G /∞ queue with Optimistic Concurrency Control (OCC) is a model for a special form of parallel transaction processing in a real-time database. Transactions arrive according to a Poisson process and require some generally distributed execution time. One of the differences with ordinary multi- and infinite-server queueing models is that under OCC the successful completion of one transaction may immediately cause the failure of one or more of the other transactions. This happens if the completing transaction has overwritten a data-item that is in use by another transaction in progress. As soon as this failure is detected the failed transaction is restarted. So the total service time of a transaction consists of its final successful run and the time spent on unsuccessful runs.
In this study we develop an approximation for the distribution of the total service time, and test the approximation against simulation. Although in practice the number of servers is never unlimited, this study provides valuable insight in the asymptotics with respect to the number of servers. The approximation clearly demonstrates the very limited performance gain from an increase of the number of servers.     

领导力360度评估反馈差异研究:来自中国的实证检验

本文首先通过自我评价与他人评价的差异,将领导者划分为三种类型,即评价一致者、高估者、低估者;其次根据实际领导力水平划分为优秀和差,建立了领导力四分类和六分类模型。基于实证分析表明,评价一致者、低估者较高估者有较高的领导力评价。但对女性领导者更为优秀的结论没有得到支持,国际化带来的文化差异表现为国外领导者更容易自我扩大,导致领导力相对较低。     

Does poor fit always lead to negative evaluations? Extension advertising and perceived brand quality

This article investigates the moderating roles of advertising strategy (relational vs. elaborational) and perceived parent brand quality on the influence that parent brand–extension fit exerts on consumer evaluations of both extensions and the parent brand. Two studies manipulate fit in terms of either brand concept consistency or product feature similarity. Lower fit results in negative consumer responses, yet an elaborational advertising strategy mitigates the negative effects of lower fit on extension evaluations. This mitigating effect is stronger for high quality than for average quality brands. The results also indicate extension feedback effects for the parent brand, suggesting that elaborational advertising strategies may reduce the impact of fit on parent brand feedback effects. This latter link is not moderated by parent brand quality.     

上级发展性反馈能否削弱阻碍性压力源对员工创造力的影响？

本文通过聚焦于现代组织情境中员工经常面对的阻碍性压力源,整合调节焦点理论和社会信息处理理论,重点探讨阻碍性压力源对员工创造力的影响,以及在这个过程中防御型调节焦点的中介作用和上级发展性反馈的调节作用。通过对38家企业的518对领导和员工的匹配问卷数据进行实证分析,得出以下研究结论：阻碍性压力源与员工创造力显著负相关;防御型调节焦点在阻碍性压力源与员工创造力之间存在部分中介效应;上级发展性反馈会削弱阻碍性压力源与防御型调节焦点之间的正向关系,且存在有调节的中介效应。本文检验阻碍性压力源通过防御型调节焦点影响员工创造力,以及上级发展性反馈在这一中介机制的理论边界,是对调解焦点和社会信息处理理论相关研究的有益补充,并且对企业管理者如何实施有效的管理策略来缓解阻碍性压力源的消极影响具有一定的指导意义。