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排序方式: 共有173条查询结果,搜索用时 31 毫秒
1.
芯片设计进入深亚微米后,互连线效应(主要是信号串扰)对集成电路的影响越来越大。该文针对这种影响进行了分析,讨论了在不考虑耦合电容和考虑耦合电容的两种情况下噪声产生机理,建立了一个耦合电容分析模型,得出了噪声产生的原因,并提出了解决噪声的策略。根据设计实例并结合建立的模型,提出了实际芯片设计中有效地控制串扰的方法,取得了良好的效果。  相似文献   
2.
Consumers are fundamental to organisational functioning and survival. Their loyalty, commitment, product acceptance and good long-term relationships with firms and brands are underpinned by their trust. Unfortunately, over the last decade or so, we have witnessed some of the more spectacular violations of consumer trust in the history of business. This has led to negative consequences, such as loss of competitive advantage, rage, lack of commitment and decrease in turnover. Consequently, study of trust repair has become an important theoretical concern for a growing number of trust scholars. This article reviews and synthesises existing theory and research on the topic. It first sketches general characteristics of the consumer trust repair literature, including its meta-theoretical underpinning. It then identifies specific strategies associated with consumer trust repair and synthesises them into five categories of trust repair strategies. In addition, this paper highlights theoretical processes that explain why/how trust repair strategies work. Third, the paper proposes six fruitful avenues for future research. This study contributes to the field of consumer trust repair research by critically reviewing and synthesising emerging theory and research on strategies associated with consumer trust repair, by showing why and how these strategies work and by identifying most fruitful research areas.  相似文献   
3.
Repeated measurements designs are widely used in medicine, pharmacology, animal sciences, and psychology. In this article, some infinite series are developed to generate the balanced repeated measurements designs for p (periods) even. For p odd, construction procedures are also described. Catalogues of the proposed designs are also presented for p = 5, 7, 9, when v ≤ 100.  相似文献   
4.
传统经典须细读,在细读的基础上领会真义。历代注家对《孟子》的注疏多有误读之处,如"攘",本义为"取自来之物",经"多少同盗",演变为"攘"即"盗";"巨室"初谓国君住的大房子,这里当喻指国君,但注家多强解为指大臣;舜在"完廪""浚井"的过程中是如何脱难的,本文没有说,注家依据其他材料做了合理化解读,未必符合本义。"坏宫室以为汙池",如从人类社会发展史的角度来释读,实际上是要维持以渔猎为生的生存方式。致误的根源有"非黑即白"的思维方式、前后矛盾、对古代"不雅驯"的文字进行改造等。  相似文献   
5.
From the economical viewpoint in reliability theory, this paper addresses a scheduling replacement problem for a single operating system which works at random times for multiple jobs. The system is subject to stochastic failure which results the imperfect maintenance activity based on some random failure mechanism: minimal repair due to type-I (repairable) failure, or corrective replacement due to type-II (non-repairable) failure. Three scheduling models for the system with multiple jobs are considered: a single work, N tandem works, and N parallel works. To control the deterioration process, the preventive replacement is planned to undergo at a scheduling time T or the job's completion time of for each model. The objective is to determine the optimal scheduling parameters (T* or N*) that minimizes the mean cost rate function in a finite time horizon for each model. A numerical example is provided to illustrate the proposed analytical model. Because the framework and analysis are general, the proposed models extend several existing results.  相似文献   
6.
This study analyzes the image repair discourse by Chinese Health Minister Zhang Wenkang's discourse on SARS. The minister faced several accusations: the SARS outbreak was growing, the Chinese government had covered up the severity of this problem, the Chinese government ignored Taiwanese who suffered from SARS, and the Health Ministry provided information that was neither timely nor accurate. He employed several image repair strategies (denial, defeasibility, bolstering, minimization, differentiation, attack accuser, and corrective action). However, his messages were contradictory and apparently related on false information, so his efforts were unsuccessful and he was stripped of his office.  相似文献   
7.
Unfortunately many of the numerous algorithms for computing the comulative distribution function (cdf) and noncentrality parameter of the noncentral F and beta distributions can produce completely incorrect results as demonstrated in the paper by examples. Existing algorithms are scrutinized and those parts that involve numerical difficulties are identified. As a result, a pseudo code is presented in which all the known numerical problems are resolved. This pseudo code can be easily implemented in programming language C or FORTRAN without understanding the complicated mathematical background. Symbolic evaluation of a finite and closed formula is proposed to compute exact cdf values. This approach makes it possible to check quickly and reliably the values returned by professional statistical packages over an extraordinarily wide parameter range without any programming knowledge. This research was motivated by the fact that a very useful table for calculating the size of detectable effects for ANOVA tables contains suspect values in the region of large noncentrality parameter values compared to the values obtained by Patnaik’s 2-moment central-F approximation. The cause is identified and the corrected form of the table for ANOVA purposes is given. The accuracy of the approximations to the noncentral-F distribution is also discussed. The authors wish to thank Mr. Richárd Király for his preliminary work. The authors are grateful to the Editor and Associate Editor of STCO and the unknown reviewers for their helpful suggestions.  相似文献   
8.
《Public Relations Review》2014,40(5):733-738
Obama's health care initiative HealthCare.gov went live on October 1, 2013. It was plagued with problems. Furthermore, the President promised that if people liked their current health care plan, they could keep it. People were shocked when they started to receive cancelation notices from their insurance companies. Republicans seized on the opportunity to savage the president, his administration, and his health care program. Obama's approval rating was anemic and on November 7, he was interviewed by Chuck Todd and on November 14, 2013, Obama held a press conference to try to mend his image. His defense relied heavily on mortification, corrective action, and minimization but also contained instances of defeasibility, bolstering, and transcendence. This essay uses Image Repair theory to analyze and evaluate the President's image repair effort.  相似文献   
9.
The following study reviews the image repair strategies used by Olympic swimmer Michael Phelps, his sponsors and the organizations that govern him as an amateur swimmer after a picture of Phelps allegedly smoking from a marijuana pipe appeared in a British tabloid. Additionally, the study reviews media coverage of the controversy to determine whether Phelps was successful in repairing his image. The study concludes that Phelps’ image repair campaign was a success. Implications for public relations practitioners and suggestions for future research also are discussed.  相似文献   
10.
Suppose that when a unit operatesin a certain environment, its lifetime has distribution G,and when the unit operates in another environment, its lifetimehas a different distribution, say F. Moreover, supposethe unit is operated for a certain period of time in the firstenvironment and is then transferred to the second environment.Thus we observe a censored lifetime in the first environmentand a failure time of a ``used' unit in the second environment.We propose an EM algorithm approach for obtaining a self-consistentestimator of F. Moreover, suppose using observations from both environments.The case where failure times are subject to right censoring isconsidered as well. We also establish the maximum likelihoodestimator of F. Moreover, suppose when the unit is repairable. Applicationand simulation studies are presented to illustrate the methodsderived.  相似文献   
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