考虑协同效应的突发事件救援人员分组方法

针对突发事件的应急救援人员分组问题,提出了一种考虑人员间协同效应的应急救援人员分组方法。首先,对突发事件应急救援人员分组问题进行了描述。然后,基于系统协同理论的思想,提出了救援小组的协同度模型,定量化的度量救援人员间的协同效应。进一步地,综合考虑救援人员的基础效能与协同效应,基于协同度模型给出了救援人员完成不同任务的实际效能的表达式。在此基础上,以最大化各救援小组的实际效能为目标,构建了突发事件应急救援人员分组的优化模型,并给出了将这一多目标0-1二次规划模型转换为单目标0-1线性规划模型的方法,进而可求解并确定救援人员的最优分组方案。最后,通过一个实例分析说明了本文所提出方法的可行性和有效性。

突发事件下基于LMX的应急救援人员分组模型研究

针对突发事件应急救援人员分组问题,本文考虑突发事件救援团队中领导成员交换关系(Leader-Member Exchange Relationship,简称LMX关系)对救援团队效果的影响,以完成所有救援任务效果最好为目标,建立了体现救援团队领导对救援人员绩效产生影响的救援人员分组指派模型,并用动态规划模型求解。最后用一个算例说明本文所提方法的可行性和有效性。

基于最优分配系数的应急救援人员分组方法

针对应急救援任务前期救援人员分组问题,提出了一种基于最优分配系数的人员分组方法.考虑影响各项救援任务紧急程度的一些因素,通过区间数可能度的理论得出最优分配系数,从而对分配给各项救援任务的人员数量进行缩减.进一步地考虑了救援人员抵达救援现场消耗的时间成本和各救援人员对救援任务的基础效益值,以整体救援效果最佳为目标,建立救援人员分组模型,通过对分组模型的求解确定救援人员的最佳分组方式.最后,用一个算例分析验证该方法的可行性和有效性.

突发事件应急救援人员的分组方法研究

针对突发事件应急救援人员分组问题,给出了一种基于优化模型的分组方法。在本文中,首先描述了突发事件的应急救援人员分组问题;然后依据救援人员特征表现评价信息,计算救援人员完成不同任务的综合表现评价值;进一步地,以完成各救援任务的"效果"最好为目标,考虑每个救援人员只能被分到一个组里且每组中的人员数量要满足救援任务的需要,构建了救援人员分组的多目标优化模型,并通过求解优化模型来得到应急救援人员的分组方案。最后,通过一个算例分析说明了本文提出方法的可行性和有效性。

Analysis and Synthesis Concept of Caring in Nursing Professional

The purpose of this study was to analyze and synthesize a concept of caring in nursing professionals. The Ethnographic Delphi Future Research （EDFR） contained two phases： Phase 1： The analysis and synthesis of the concept of caring theory in nursing professionals from the literature, research and interviews. The participants were an expert in education, two nurses, two patients and two members of the patients＇ families. The research instrument was a semi-structural questionnaire. The data were analyzed by content analysis and categorized; and Phase 2： The selection of the expressions of caring behavior and guidelines for promotion of caring behavior in new nurses. The participants were two experts in education, eight experts in nursing administration and eight experts in nursing practice. The research instruments were three questionnaires. The data from the first Delphi technique were analyzed by the experts＇ recommendations. The data from the second and third Delphi technique were analyzed by the median and interquartile range of each behavior and consensus. The findings showed the main contents of caring that contained six components as follows： kindness, understanding worth and showing respect, professional relationship, professional competency, professional ethics, and holistic care. The training was a method for promotion of caring behavior. Additionally, in the the first Delphi technique, the experts approved all of the components of caring behavior and the guidelines for promotion of caring behavior as identified in the researchers＇ concepts. However, the researchers＇ concepts were developed 54 caring behaviors while the experts＇ opinion were 50 caring behaviors. In the second and third Delphi technique, all items of caring behaviors get consensus shown by interquartile range not more than 1.5 and the median since 3.5.

The Long-Run Performance of IPOs in Italy： A Comparison of Venture and Non-Venture-Backed Companies

The phenomena associated with the performance of newly listed companies has increased the interest of many researchers who have developed a vast literature on long-term underpricing and underperformance, which together with hot and cold issue markets, represent the three anomalies that have always accompanied with Initial Public Offerings （IPOs）. The objective of this work is to investigate the long-run performance of IPOs of venture and non-venture-backed companies. The analysis of a sample of 102 IPOs carried out in Italy in 1998-2005 revealed that both companies （venture-backed and non-venture-backed） showed negative values, thus, confirming the phenomenon of underperformance. During the 36 months following their listing, venture-backed companies seemed to register negative and statistically significant values both with the CARsVB methodology （-93.99%） and the Buy and Hold Abnormal Returns methodology （BHARsVB -88.37%）. Venture-backed companies, unlike non- venture-backed companies, seem to be able to restrain the losses, measured by both methods, in the first 12 months （CARsB - 12.38% -20.15% CARSNNVB; BHARsVB - 10.17%; BHARsNVB - 15.51%）. During the 36 months, however, the IPOs showed negative and statistically significant values regardless of whether they were venture or non-venture-backed. The test on the difference between the average abnormal returns of the two methodologies （CAARS and BHAARs） did not produce statistically significant results. The Wealth Relative was calculated and from the results it would appear that the portfolio of venture-backed IPOs does not register ＂brilliant＂ performances. The portfolio of 102 IPOs does not seem to beat the ＂market portfolio＂. In conclusion, therefore, the phenomenon of underperformance seems to be real in our country and is documented by strongly negative and statistically significant values obtained from the samples of IPOs analyzed.

The Features and Patterns of Revision Process in English Learners＇ Writing

Revision is an important part of writing process but it often baffles the researchers due to the difficulties in recording the revision process of students. Based on a self-made questionnaire and the online record of the revision process, this study describes the English learners＇ revision behaviors and process in their second semester of a two-year writing course. The analysis indicates that the English learners hold a positive attitude towards revision and but passive in resorting to outside sources for help. The source of the feedback has a great influence on their motivation of revision. On the other hand, although they use all types of revision operations, they concentrate on surface changes and simple operations.

Exploration on New Ideas for the Scientific Research Archival Management in Colleges and Universities

Scientific research archives are important parts of the archival management in colleges and universities. Scientific research archives are the direct, harsh but factual historical materials for recording the research process of researchers. A scientific and effective management of archives is helpful for promoting the development and progress of science and technology in colleges and universities. The archives can be better managed only if the train of thought for scientific research archives management ideas is known well.

Maintenance Decision Making Model with Multiple Attribute Optimization

An effective maintenance schedule can largely improve productivity and reduce maintenance costs for enterprises. Many factors, such as resource, production, cost and crew, should be considered when we make maintenance plans. However, it is difficult to meet all requests of the production targets in practical engineering.The multiple attribute decision making for equipment maintenance is proposed in this paper, and the multiple objectives decision making method is utilized to solve the problem in the maintenance process. In the particular environment and resources, a case is studied to illustrate the model and methods. The model gives the optimal maintenance plan with the analytic hierarchy process method in accordance with the particular criteria. It has been proved that this model and decision methods are scientific and operable.