The Influence of Prior Commitment on the Reactions of Layoff Survivors to Organizational Downsizing.

Nurses (N := 179; Study 1) and managers (N = 154; Study 2) participated in 2 panel studies examining the relationship among prior commitment (affective and continuance commitment and perceived organizational support), coping strategies, and survivors' attitudes and perceptions during and following downsizing. In Study 1, perceived organizational support was significantly positively related to control-oriented coping, job satisfaction, and intention to remain and negatively related to perceived job insecurity and burnout 2 years later. In Study 2, coping mediated the relationship between the prior commitment variables and job alienation, health symptoms, and burnout following the downsizing. Control-oriented coping was associated with elevated levels of health symptoms and burnout following the downsizing, suggesting that control-oriented coping may have positive effects in the short term but potentially harmful effects in the long term. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

复杂参数产品形态设计中的解空间降维方法

针对产品形态设计中评价标准的模糊性问题,探索了智能化设计方法中的操作性技术.基于产品的形态编码,采用参数权重集中曲线的噪声度自动评测方式对解空间进行降维处理,并对产品形态编码分级.在降维后的系列解空间中使用交互式遗传算法搜索最优方案,并逐级完成形态的细化设计.文中方法从用户交互选择信息中提取出各参数对产品形态的重要性等级,作为细化设计过程的依据.求解过程全部基于解码的形态方案进行,为设计师的工作提供了直观的界面.     

Repeated Downsizing Contact: The Effects of Similar and Dissimilar Layoff Experiences on Work and Well-Being Outcomes.

In this longitudinal study, the authors compared 1,244 white- and blue-collar workers who reported 0, 1, or 2 contacts with layoffs; all were employees of a large manufacturing company that had engaged in several mass waves of downsizing. Consistent with a stress-vulnerability model, workers with a greater number of exposures to both direct and indirect downsizing reported significantly lower levels of job security and higher levels of role ambiguity, intent to quit, depression, and health problems. Findings did not support the idea that workers became more resilient as they encountered more layoff events. The authors found only partial evidence that the similarity or dissimilarity of the type of repeated downsizing exposure played a role in how workers reported changes in these outcome variables. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

电视剧缩编网络的研究与设计

介绍了电视剧缩编网络的需求与功能,分析了系统的主要业务流程,构建一个面向电视台全台网的电视剧缩编网络,实现了电视剧入库、上载、检索、编辑、播出、存档一体化管理等功能。     

Coping With Downsizing: A Comparison of Executive-Level and Middle Managers.

A longitudinal study compared the reactions of executive-level and middle managers prior to a large-scale downsizing, during initial and final phases, and following the downsizing. Compared with executives, middle managers perceived greater job insecurity, were more likely to use escape coping, and reported lower job performance and higher levels of health symptoms. Over time, both executives and middle managers reported a decline in perceived threat of job loss but an increase in sense of powerlessness, a decrease in the use of control-oriented coping strategies, and reduced job performance in the initial phase of downsizing. Although less so, executive-level managers were also adversely affected by the downsizing, suggesting that this group should be included in stress management interventions. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Fast Intra Downsizing Based on Direction for H.264/AVC Transcoding

A fast algorithm based on direction in intra frame downsizing in H.264 is proposed, which used modes information of macroblocks before transcoding and the direction relation of modes between decoding and re-encoding in transcoding. This algorithm also made use of statistics between decoded modes and re-encoded modes, which came from a lot of sequences data experiments. Without full modes encoding, it can improve the speed of reducing intra-prediction frame resolution obviously. Comparing to traditional transcoding, it only needs to compute one of thirteen modes in re-encoding. The experiments show that this algorithm can significantly speed up 92 percent transcoding time in intra-prediction frame of H.264 with slight PSNR degradation. It also can support an improvement in real-time for transcoding and ability of bandwidths changing.     

实施PSTN瘦身、推进固定语音网络演进

吉林联通开展PSTN瘦身工作，实现了网络资源的优化配置，降低了网络运营成本；为了适应固网光纤到户的趋势，引入IMS技术，使其成为吉林联通未来触合的核心网络的演进方向。     

基于Web结构挖掘的HITS算法研究

随着网络与数据挖掘技术的发展,Web数据挖掘得到了较多的研究。本文从Web结构挖掘的角度出发,在分析了Web结构挖掘技术的基础上,研究了HITS算法。针对HITS算法的多主题性、无关页面、无关链接等问题,提出了HITS算法改进算法。     

数字地形图自动综合缩编技术的应用

利用计算机辅助技术，对现有1：500地形图进行自动综合缩编，生成1：2000数字图。     

Car occupant safety in frontal crashes: a parameter study of vehicle mass, impact speed, and inherent vehicle protection

A new mathematical model was developed to estimate average injury and fatality rates in frontal car-to-car crashes for changes in vehicle fleet mass, impact speed distribution, and inherent vehicle protection. The estimates were calculated from injury/fatality risk data, delta-V distribution and collision probability of two vehicles, where delta-V depends on impact speed and mass of the colliding vehicles. The impact speed distribution was assumed to be unaffected by a change in fleet mass distribution.

The results showed that safety in frontal crashes would improve 27–35% by a 10% increase in fatality risk parameters, which reflected substantial improvement in inherent vehicle protection. A 40% safety improvement was attained by a 10% impact speed reduction. Consequences of vehicle fleet mass were not as strong, but depended on the average mass ratio of the fleet. A reduction in mass range would be the most beneficial, while a uniform mass reduction of 20% would increase the fatality rate by 5.4%. The model estimates trends in traffic safety and may help to identify priorities in active and passive safety.