天然气管道在线预警与定位技术应用研究

本文通过对管道光纤预警工作原理、管道光纤预警系统组成等进行阐述,进而在一定程度上为天然气管道在线预警与定位提供参考依据。     

键连式脚手架体系应用总结与分析

通过对键连式脚手架体系设计分析和现场应用，对比现有的脚手架，得到其工程应用中的优越性及其不足之处。总结分析键连式脚手架设计原理、施工工艺、现场应用的优点与劣势，得到键连式脚手架实用价值及不足之处，为建筑行业脚手架的发展提供宝贵参考意义。     

Green technology innovation: Anatomy of exploration processes from a learning perspective

This paper examines how established firms use their core competences to diversify their business by exploring and ultimately developing green technologies. In contrast to start‐ups dedicated to a green mission, diversifying into green markets by developing new products based on existing core competences has proven to be challenging. This is because the exploration processes to find a match between green technology opportunities and internal competences is complex and new to most established firms. This paper gains insights into exploration processes for green technologies and the learning modes and outcomes linked to these processes. We examined exploration processes at the microlevel in an embedded case study of an engineering firm using a combination of the “fireworks” innovation process model and organizational learning theory. First, we found that developing green technologies involves a long‐term exploratory process without guarantee of (quick) success and likely involves many exploration failures. Second, as exploration unfolds along multiple technology trajectories, learning occurs in individual exploration paths (on‐path), when new paths are pursued (path‐initiation), and when knowledge from one path is spilled over to subsequent paths (across‐paths). Third, to increase their chances for success, firms can increase the efficiency of exploration by fostering a failure‐friendly organizational culture, deliberately experimenting, and purposefully learning from failures.     

Does delaying service-failure resolution ever make sense?

Conventional wisdom suggests that service providers should respond to their failures as quickly as possible. Some research, however, points out that delaying resolutions may produce highly desirable results. The study here investigates these competing views by examining under which conditions an immediate or a delaying resolution produces more positive consumer responses in term of re-patronage and negative word-of-mouth intentions. Based on the concept of service separation, this research identifies an interaction effect between service separation (separated service, non-separated service) and response timing (immediate response, delaying response) on consumers' post-consumption intention. This research also finds that the relationship between service separation-response timing interaction and consumer response is mediated by consumers' negative emotions. This study contributes to refining our understanding of consumer psychology in service recovery. Practically, the studies also enable service providers to better allocate their resources to recover different types of services' failure.     

Short-term safety or long-term failure? Empirical evidence of the impact of securitization on bank risk

Based on a sample of U.S. commercial banks from 2002 to 2012, this paper shows that bank loan securitization has a significant and positive impact on both Z-scores and the likelihood of bank failure, indicating a short-term risk reduction and a long-term risk increase effect. We also find disparate impacts between mortgage and non-mortgage securitization. Loan sale activities are found to have a similar impact to securitization.     

银行信贷风险管理和预警体系研究——以建设银行某支行为例（下）

在对现行建设银行信贷风险管理的研究后,建立了新的适用评定信贷风险模型,并获得了理论上的成功.而模型需要进行案例实证的检验才具有可信性,在此所选建行下某支行贷款企业实际数据进行检测,实证证明模型有效.得出所建模型在案例实证的情况下有效的结论.     

A new way of thinking about IT project management practices: Early empirical results

Despite decades of efforts to improve the management of Information Technology (IT) projects, failure rates remain high. This article first reviews literature about information systems success and IT project success. Most of the improvement efforts have focused on advancing variations of the traditional project management paradigm, such as embodied by the Project Management Body of Knowledge. This article describes a new way of thinking about managing IT project called Value-Driven Change Leadership (VDCL), and reports the results of an initial empirical exploration to identify project success factors stemming from VDCL as well as the traditional paradigm. The results are based on data collected from 16 medium-sized IT-intensive projects at eight Chicago-based organizations from six different industries. The results, although not based on a large sample, point to several project management practices associated with project success that stem from both the traditional paradigm as well as VDCL. For example, traditional practices managing stakeholders’ expectations, scope, and schedule are associated with project success, as are practices stemming from VDCL, such as managing the end-product’s architecture, business value added, and the organization change associated with systems implementation. The results of this study also suggest that further research into new ways of thinking about IT project management may be fruitful.     

天然气管线冲刷破损失效分析

某燃气公司一段埋地高压天然气输送管线某处发生严重破损，为分析失效原因，作者采用宏观形貌分析、扫描电镜分析、化学成分分析、显微组织分析、力学性能检验、Fluent模拟分析等系列方法对该失效管段进行分析。结果表明，与该天然气管近距离平行铺设的自来水供水管道破裂，导致高速水流正面与切向冲刷作用，最终导致天然气管破裂。根据分析结论，提出了预防同类事故发生的建议。     

Responding to negative online reviews: The effects of hotel responses on customer inferences of trust and concern

Our research examines the perceptions and evaluations of prospective customers toward an online negative review and any accompanying hotel response. The study explores two main issues: whether the presence (versus absence) of an organizational response to negative customer reviews affects the inferences potential consumers draw about the target business, and which aspects of responses affect their impressions. We test the effects of four variables associated with a response: source of response, voice of responder, speed of response, and action frame on two outcomes variables (i.e., customer concern and trust inferences). The provision of an online response (versus no response) enhanced inferences that potential consumers draw regarding the business's trustworthiness and the extent to which it cares about its customers. Using a human voice and a timely response yielded favorable customer inferences. Inferences did not vary with response source or action frame. Implications are drawn for effective management of negative online reviews.     

基于时间维度的组织学习理论——组织从过去经历中学习的模型

从经历中学习是组织学习的重要方面。从科学、严谨的研究范式出发,结合东方传统的"阴阳"哲学思想,基于时间维度提出了包含学习主体、经历样本、成功失败经历集、学习主体特征、"知"和"行"等要素的组织从过去经历中学习的模型,并对相关问题进行了探究。具体包括:学习主体从经历中学习的认知特性;不同类型经历对应的不同学习方法,成功经历和失败经历对学习效果的差异性影响,经历集影响"知"和"行"的7种自动的和有意的学习方式;"知"与"行"相互转化及其触发机制;客观世界从时间和空间两个维度客观展开的观点等。该系统模型为未来研究提供了理论框架和实证检验方向。