浅析扣件式钢管脚手架模板支撑失效

通过对典型扣件式钢管脚手架模板支撑失效案例剖析,从材质、施工措施、现场管理多个方面进行脚手架模板支撑失效原因分析,避免类似安全事故发生。     

The entrepreneurial imagination and the impact of context on the development of a new venture

This paper sets out to explore the impact of a new venture's context on its development. The study consists of a single case study based on a new venture attempting to exploit an opportunity in the life sciences and charts the impact that the context, in particular actors that the venture are trying to gain resources from, have upon the plans, activities and resources developed by this nascent firm. Spanning the time period of 1999-2006, this case outlines four periods of development of the venture. This accounts for the initial plans of the venture, their struggle to gain venture financing, the development of the venture's technological resources and the attempts to create commercial relationships. The study shows the impact that institutions used in a context have on this venture leading to, among other things, the discovery of IP, finding a CEO and developing a product line.     

浅谈校企结合教学质量“双评价”体系的建立

本文从提高高职教学质量和多元智能理论观点出发,依据职业特殊性,阐述了多元化的评价标准及建立双评价体系的重要性,并根据用人单位的实际提出了一些切实可行、能够反映教学质量的评价指标。     

“边缘地带”解决“三农”问题成败规律探析

研究“三农”问题成败的角度有很多,但从地缘政治视野中去探究“边缘地带”这一特定空间区域的成败经验,目前尚属空白。二战后的“四小龙”、日本和以色列都是成功的案例,而印度、伊拉克、伊朗则是失败的案例。总结其中成功的经验和失败的教训后可得出这样一个结论,即“边缘地带”的国家和地区,必须采取符合当时形势要求的外交战略和自身定位,通过至少与一个全球强权国家结盟,争取机遇和资源,实现“三农”问题的解决。     

Evaluating drug cost per responder and number needed to treat associated with lixisenatide on top of glargine when compared to rapid-acting insulin intensification regimens on top of glargine,in patients with type 2 diabetes in the UK,Italy, and Spain

Objectives: This study investigated the cost per responder and number needed to treat (NNT) in type 2 diabetes mellitus (T2DM) patients for lixisenatide compared to insulin intensification regimens using composite endpoints in the UK, Italy, and Spain.

Methods: Efficacy and safety outcomes were obtained from GetGoal Duo-2, a 26-week phase 3 trial comparing lixisenatide vs insulin glulisine (IG) once daily (QD) and three times daily (TID). Response at week 26 was extrapolated to 52 weeks, assuming a maintained treatment effect, based on long-term evidence in other T2DM populations. Responders were defined using composite end-points, based on an HbA1c threshold and/or no weight gain and/or no hypoglycemia. The HbA1c threshold was varied in sensitivity analyses. Annual treatment costs were estimated in euros (1 GBP?=?1.26 EUR), including drug acquisition and resource use costs. Cost per responder was computed by dividing annual treatment costs per patient by the proportion of responders.

Results: Lixisenatide was associated with the lowest cost per responder for all composite end-points that included a weight-related component. For the main composite end-point of HbA1c ≤7.5% AND no weight gain AND no symptomatic hypoglycemia, cost per responder results were: UK: 6,867€, 8,746€, and 12,410€; Italy: 7,057€, 9,160€, and 12,844€; Spain: 8,370€, 11,365€, and 17,038€, for lixisenatide, IG QD, and TID, respectively. The NNT analysis showed that, for every 6.85 and 5.86 patients treated with lixisenatide, there was approximately one additional responder compared to IG QD and TID, respectively.

Limitations: A limitation of the clinical inputs is the lack of 52-week trial data from GetGoal Duo-2, which led to the assumption of a maintained treatment effect from week 26 to 52.

Conclusions: This analysis suggests lixisenatide is an efficient economic resource allocation in the UK, Italy, and Spain.     

准静止状态下的高空平台实时业务信道分配

受平台准静止状态的影响,高空平台（HAPS）通信网络内存在大量的切换呼叫,且业务量动态变化。HAPS网络可传输多种业务,其中实时业务在切换过程中具有较高的时延要求。通过为切换呼叫预留信道可降低平台不稳定对服务质量（QoS）造成的影响。在基于服务优先级的多业务信道分配算法基础上,重点对实时业务的信道分配算法进行改进,提出了一种基于概率的预留信道借用策略。该算法可根据网络内业务量的实时统计数据控制新呼叫业务的准入。仿真结果表明：与固定预留信道算法和门限预留信道算法相比,该算法能够适应网络内业务量的动态变化,在保证切换呼叫掉线率满足期望值的条件下提升系统的整体性能,降低平台不稳定造成的性能损失。     

悖论式领导对团队创新绩效的影响研究——失败学习与技术动荡性的作用

悖论式领导是一种新型领导风格,能够有效应对团队创新过程中的矛盾.本文基于社会认知理论、经验学习理论,构建了一个被调节的中介模型.基于311份问卷数据,运用层次回归、bootstrap等数据分析方法,实证检验了悖论式领导对团队创新绩效的影响机制,并进一步探究了技术动荡性的调节作用.研究发现:悖论式领导能够显著提高团队创新绩效;悖论式领导对团队创新绩效产生影响主要通过失败学习实现;技术动荡性削弱了失败学习对团队创新绩效的影响.本文不仅证实了悖论式领导在中国情境下的有效性,揭开了悖论式领导对团队创新绩效的重要作用机制,而且为组织正确认知和应对失败,从而提高团队创新绩效提供了新的解决方式.     

基于失效风险的建筑物预防维修成本模型优化

建筑物预防性维修成本的最优控制问题,是企业现代化经营管理的一个重要组成部分,直接影响到企业的经济效益。针对承受重复荷载作用的建筑构件,失效概率随服役时间增加而增大的实际情况,提出了失效风险的概念。采用役龄回退因子描述了维修后失效概率降低的程度,在此基础上推算出满足可靠度约束条件,适用于特定时间段非等间隔检测期序列,计算出单位维修周期内的检测次数。通过对维修成本函数的分析,建立了基于等失效风险状态的维修成本优化模型。为房屋物业管理部门进行建筑物的维修和更换决策提供参考依据。     

潜油电泵机组失效分析方法与软件

根据潜油电泵机组结构和工作状态,应用可靠性分析理论和方法,建立了无参数统计处理方法和有参数分布类型统计处理方法,并在PC机上开发了Epsras．exe软件,为潜油电泵机组失效分析提供了理论方法和计算软件。     

Gender differences in the intentions to voice complaints across different service failure modes

The present study investigates the joint impact of the service failure mode (interpersonal service versus self-service technology) and gender on consumers’ intention to voice their complaints. Results from a quasi-experiment suggest that female consumers are more likely to voice their dissatisfaction following a self-service technology failure rather than an interpersonal failure. However, the service failure mode fails to influence male consumers’ complaint intentions. Moreover, our findings indicate that motivation to help is the mechanism behind female consumers’ complaint behaviors, thus mediating the effect of service failure mode on complaint intention. Therefore, hospitality practitioners might want to pay attention to the differences in each gender’s complaint behaviors across different service failure modes and provide effective service recovery solutions across the two genders.