MTS在CSI测评中的应用

在顾客满意度指数测评理论中，引入马田系统的思想，通过相对与理想态基准空间马氏距离的比较，并通过定义典型的质量子模式，根据择近原则，可快速实现顾客满意度指数测评的质量模式识别。     

供电服务品质维度对用户满意的影响研究

一、引言 电力是国民经济的基础性能源，对国民经济的发展起着重要的支持和保障作用。同时，电力也是广大人民群众生活所必需的能源。所以，电力市场运行的好坏，直接影响国民经济的安全运行和健康发展，是关系国计民生的大事。所以，对供电企业提供的产品与服务就提出了更高的要求，供电企业不仅要为客户提供安全、优质、方便、清洁的电能，     

SEM图像分形维数的影响因素研究

以玻璃光纤、碳纤维纸和两种机加工表面样本的扫描电子显微镜图像为对象,运用盒维法研究了不同的放大倍数和采集过程中受到的噪声干扰对分形维数的影响.研究结果表明,随着放大倍数增大或随着椒盐噪声密度和高斯随机噪声方差的减小,分形维数下降.放大倍数和噪声对分形维数都有较大影响.在扫描电子显微镜图像分形维数的计算中,可以依据试样的结构特征选择合适的放大倍数,进行去噪处理后再计算图像的分形维数.     

我国食品冷链发展与道德工业的延续

伴随着社会主义市场经济的繁荣昌盛,我国食品行业得到迅猛增长,食品物流行业迎来了前所未有的发展空间。在经济一体化格局日益加剧,全球性竞争日趋激烈的今天,不仅带来了机遇和商机,也带来了更加严峻的挑战。今年1-6月份,我国食品工业继续保持持续发展的势头,完成产值9 241亿元,同比增长25.68%,完成利税1 582亿元,同比增长17.78%,其中利润总额576亿元,同比增长27.86%。增长快的主要产品:鲜冷藏冻肉248万吨,增长44.23%,果汁饮料308万吨,增长30.05%,液体乳518万吨,增长29.23%,糖果巧克力37万吨,增长34.79%。众所周知,食品是特殊商品,其质量的…     

Economic evaluation of human urinary kallindinogenase for patients with acute ischemic stroke in China

Objectives: In China, both human urinary kallindinogenase (HUK) and 3-n-butylphthalide (NBP) are recommended for clinical use to improve cerebral blood circulation during an acute ischemic stroke (AIS). The objective was to evaluate the economic value of HUK vs NBP for patients with AIS from a Chinese payer’s perspective.

Methods: An economic evaluation based on data of patients who have been treated with either HUK (n?=?488) or NBP (n?=?885) from a prospective, phase IV, multi-center, clinical registry study (Chinese Acute Ischemic Stroke Treatment Outcome Registry, CASTOR) was conducted to analyze the cost and effectiveness of HUK vs NBP for AIS in China. Before the analysis, the patients were matched using propensity score. Both a cost-minimization analysis and a cost-effectiveness analysis were conducted to compare the matched pairs. A bootstrapping exercise was conducted for the matched arms to demonstrate the probability of one intervention being cost-effective over another for a given willingness-to-pay for an extra quality-adjusted life-year (QALY).

Results: After propensity score matching, 463 pairs were matched. The overall medical cost in the HUK arm is USD 2,701.20, while the NBP arm is USD 3,436.83, indicating HUK is preferred with cost-minimization analysis. Although the QALY gained in the HUK arm (0.77176) compared with the NBP arm (0.76831) is statistically insignificant (p?=?.4862), the cost-effectiveness analysis as exploratory analysis found that, compared with NBP, HUK is a cost-saving strategy with the lower costs of USD 735.63 and greater QALYs gained of 0.00345. Among the 5,000 bootstrapping replications, 100% indicates that HUK is cost-effective compared with NBP under a 1-time-GDP threshold; and 97.12% indicates the same under a 3-time-GDP threshold.

Conclusion: This economic evaluation study indicates that administrating HUK is a cost-saving therapy compared with NBP for managing blood flow during AIS in the Chinese setting.     

较差质量数据下的返回弹道计算及对落点影响的分析

针对某老式卫星返回时雷达跟踪数据曾发生的测量异常及质量较差等情况，为解决此类数据在返回弹道及落点计算中出现的实际困难以及给出应对措施，基于工程实际情况给出了三种不同建模类型下的弹道计算方法——当前统计解耦扩展卡尔曼滤波（EKF）、动力学建模无迹卡尔曼滤波（UKF）、多项式滑窗最小二乘估计算法，并应用该次质量较差的实际观测数据进行了算法应用效果分析与落点计算情况对比，对计算中的经验及教训进行了总结。研究结果表明，所给出的三种算法在面对较差质量数据时性能差异较大，在工程实际应用中可考虑将多种算法互为参考。研究结果及其经验教训对卫星返回弹道及落点的实时估计的工程实施有一定的参考价值。     

A genetic algorithm based approach to transactional and QoS-aware service selection

As there are various risks of failure when Web services are deployed in unreliable environment, the execution of a composite Web service (CWS) requires the transaction mechanism to guarantee its reliable execution. However, the existing service selection approaches consider QoS and transaction separately and have not considered that transactional properties may affect the QoS such as the execution time of a CWS. This work addresses the importance of considering transactional properties and how the transactional properties affect the QoS simultaneously in the process of service selection by a QoS-aware and transactional-aware selection approach. First, a performance evaluation method is proposed to calculate the execution time of a transactional CWS. Then, a genetic algorithm based approach, which takes into account the execution time, price, transactional property and successful execution rate of CWS, is presented to achieve global optimisation service selection. Finally, experimental results show the efficiency and effectiveness of the approach.     

董事会特征、高管激励与集团绩效——来自中国上市集团公司的经验证据

作为一个多法人联合体,企业集团的治理与单体企业不同.通过实证研究发现,中国上市集团公司的董事会规模并没有对集团绩效产生积极效应,独立董事也未能有效发挥监管职能;董事长与总经理两职合一与集团公司绩效负相关;合理有效的报酬制度与公平透明的股权激励环境有助于集团公司绩效的提高,而股权激励制度有待进一步完善.     

产业转型升级阶段的制造业生产效率评价及影响因素——基于2003—2009年江苏省面板数据的分析

本文运用超效率DEA-Tobit模型对江苏省制造业三十个行业2003—2009年间的生产效率及影响因素进行了分析,研究发现：（1）2003—2009年江苏省制造行业整体技术水平偏低,虽然大部分行业处于规模递增的状态,但行业规模仍然偏小。同时,由于纯技术效率和规模效率的普遍不高,导致样本期内江苏省制造业技术效率水平偏低。（2）表象上行业市场结构强、资本劳动力投入要素比例大、外商直接投资额多,会对江苏省制造业行业生产效率的提升起到很大的作用,然而本文的实证结果表明,行业绩效与生产效率之间存在着显著的正相关关系,投入要素比例与生产效率的负相关性也较为显著,而行业结构和FDI与生产效率的显著性不强。     

知识视角下区域创新绩效研究——基于PCA-DEA模型和Malmquist指数的实证分析

本文综合关于区域创新绩效的研究文献,构建了知识视角下的区域创新绩效指标评价体系。在此基础上,首次运用PCA-DEA模型和Malmquist指数分析方法对我国30个省域创新绩效进行了动态实证分析。研究发现我国区域创新绩效整体呈上升趋势,但是近年遇到瓶颈,区域创新效率的主要限制因素是PECH（纯技术效率）值较低。东部区域创新绩效高于西部地区,而中部区域创新绩效最低。西部地区创新技术效率已经赶超东部,呈持续领先态势。北京、内蒙、福建、河南、贵州、云南、宁夏、新疆等8个省市是创新活动生产可能性前沿外移的主要推动者。基于实证分析的结果,为提高我国区域创新绩效提供相应思路。