枢纽机场航班延误恢复模型研究

为了快速恢复枢纽机场航班积压，减少枢纽机场的大面积航班延误。在航空和高速铁路联合运输的思想上延伸，以恢复成本最小化为目标，建立枢纽机场大面积航班延误恢复模型，确定短途航班的取消、延误或航班被高速铁路运输替代，实时恢复航班。利用MATLAB对上海虹桥国际机场航班延误数据求解，结果显示高速铁路替代模式相对航班地面延迟、航班取消等方案使恢复成本降低15%，节省恢复时间30min，验证模型恢复枢纽机场大面积航班延误可行、有效。     

The Regressive Recovery: Distribution,Inequality and State Power in Britain's Post-Crisis Political Economy

This article interrogates the underlying mechanisms at the heart of Britain's post-crisis political economy. We argue that the contemporary economic recovery has been characterised by a dynamic of ‘regressive redistribution’: a socially regressive dynamic of state-led economic restructuring that has worked through two axes at the centre of the recovery. The first axis, a monetary policy framework centred upon Quantitative Easing, has driven asset-price inflation to the benefit of the wealthiest asset holders. The second axis centres upon the politics of regressive labour market restructuring which has provoked widespread wage deflation. In combination, these two axes have been central to defining the contours of the Britain's post-crisis political economy paradigm: characterised by rising asset wealth for the few, and falling living standards alongside increasing economic insecurity for wage earners. The opportunity to change path from the trends of deepening inequality that defined the pre-crisis era has not been taken. Instead, the prevailing policy paradigm of the post-crisis period – discursively unified and sustained by David Cameron's government – has intensified the regressively redistributive dynamics at the core of the neo-liberal project. Ultimately, this is likely to further entrench structural weaknesses in Britain's economy in the years ahead.     

腹部带血管蒂皮瓣转移修复手外伤皮肤缺损的临床疗效

目的探讨腹部带血管蒂皮瓣转移修复手外伤皮肤缺损的临床疗效。方法选取我院2012年2月至2014年2月收治的80例手外伤皮肤缺损患者的临床资料进行回顾性分析,将其分为两组。观察组患者使用腹部带血管蒂皮瓣进行修复,对照组患者使用手指掌侧推进皮瓣进行修复,观察两组患者治疗效果。结果观察组40例患者皮瓣全部成活,对照组患者皮瓣成活37例,观察组优于对照组(P<0.05);外形恢复满意度方面,观察组患者满意度为97.5%(39/40),对照组患者满意度为70.0%(28/40),其中对照组患者有2例出现轻度臃肿,差异有统计学意义(P<0.05)。结论腹部带血管蒂皮瓣转移修复手外伤皮肤缺损的疗效明显,患者满意度高,外形恢复完整,具有较高安全性。     

一种改进的非凸秩最小化算法及其在矩阵恢复中的应用

在分析现有处理矩阵恢复问题的非凸秩最小化算法的基础上,提出了一种基于超松弛迭代的改进算法,并给出了松弛因子ω的确定准则。仿真实验表明:在惩罚参数选取较大的情形下,改进算法较原算法具有更快的收敛速度及更高的收敛精度,同时展示了基于非凸秩最小化算法的矩阵恢复技术在图像去噪中的应用。     

基于随机理论的煤层端部放矿贫化损失计算

煤炭开采过程中,损失率和贫化率对实际的煤炭回收率具有很大影响。本文以放煤开采方法为研究对象,借助随机理论分析了放顶煤过程中导致贫化及损失的主要原因,并将随机理论拓展到有限条件下的煤炭回收率计算当中,得到了和实际情况基本吻合的结果。该研究为煤矿开采过程中的回收率计算以及开采策略的制定提供了有效参考。     

Measuring experienced emotions during service recovery encounters: construction and assessment of the ESRE scale

The role of emotions is increasingly gaining attention as a central element in understanding customer evaluations of service failure and recovery experiences. Despite the importance of emotions for service organizations, however, empirical investigations of customers’ emotional response to service recovery encounters remain scarce. A reason for this has been the absence of a valid and reliable measurement instrument for analyzing and comparing the emotions associated with different recovery experiences. Addressing this issue, the current paper presents the development and validation of a new scale specifically designed to measure experienced emotions during service recovery encounters (ESRE). The results show that the ESRE scale is a valid and reliable instrument, which should be helpful for empirically studying the role of emotional responses to service failure and recovery encounters.

微生物强化采油技术研究现状及应用前景

介绍了微生物强化采油技术的基本概念、机理和发展现状，讨论了该技术的研究方法、优点及应用条件，并展望了微生物强化采油技术的应用前景。     

反向物流及其网络构建

由于环境压力的增加,产品回收问题近来日益受到人们的关注。这就需要为产生的物品从使用者到生产者的反向流动构建适当的物流网络。对类似这种物流网络的设计进行研究,分析近年来不同行业产品回收网络构建,比较反向物流与传统物流结构的差别,总结反向物流网络的基本特征,使产品材料的可回收利用成为一个重要的市场因素。     

The effects of social justice and stigma-consciousness on gay customers' service recovery evaluation

This study examines how social justice and the stigma-consciousness level of gay customers influence their service recovery perceptions. The results, based on an experiment involving 379 gay respondents, indicate that distributive justice, procedural justice, and interactional justice significantly affect gay customers' service recovery evaluations (satisfaction) and post-complaint behavioral intentions (negative word-of-mouth and repatronage). Also, higher stigma-consciousness gay customers show more negative service recovery evaluations and behavioral intentions than those with lower stigma-consciousness. Service providers who are interested in attracting and maintaining gay customers should create awareness among their employees about stigma-consciousness.     

The double-edged sword: The positive and negative effects of switching costs on customer exit and revenge

What happens when customers have to deal with switching costs after a service failure and a poor recovery? This study seeks to address this question by proposing and testing an integrative model that incorporates customers' negative emotions as mediators between switching costs and behavioral outcomes (i.e., loyalty and revenge). The model distinguishes positive from negative switching costs, and inward from outward negative emotions. Analysis of survey data from 280 real customers who actually experienced a service failure and poor recovery with a major telecommunications firm reveals that customers react to switching costs strongly, emotionally, and sub-optimally. In contrast to most findings in the service literature, the results indicate that negative switching costs generate both exit and desire for revenge. Paradoxically, positive switching costs generate both loyalty and an even higher level of desire for revenge. These findings have important implications for the service industry.