Entrepreneurial resource acquisition via personal networks: an empirical study of German start-ups

This paper presents a resource-based theoretical model for an extended version of the network success hypothesis. It derives four main hypotheses for the relationships between resources obtained from personal networks of the founders and a new venture's success. The model takes into account a broad range of control variables. In the empirical study, based on a sample of 123 German entrepreneurs, we do not find much support for our hypotheses. We conclude that, quite in contrast to most existing theories, network links have close to no impact on getting cheap or exclusive resources.     

“软件开发与实践”教学改革探索与研究

针对软件开发与实践课程的综合性和实践性很强的特点,分析传统教学方法的不足,提出以案例为基础加强各学科关联度的新型教学方法,并从教学内容、课程实践、考核方式等多方面提出了改革措施。     

财经院校软件工程专业建设的探索

相对于我国的软件产业的快速发展,软件工程专业教育发展相对滞后。在许多软件专业学生找不到工作的同时,软件企业却找不到合适的人才。本文提出了在财经院校建设软件工程专业的一些探索,主要为解决学生动手实践能力,从而解决就业问题等提供一些思路。     

铁路日装车计划运输效益计算分析系统开发研究

日装车计划的审批是铁路局的一项重要工作。通过详细分析铁道部的清算办法,总结出了日装车计划的清算收入、运输成本以及运输效益的计算方法,对系统进行了需求分析、模块设计、数据库设计与流程设计。在设计的基础上,以vs2005为开发工具c、#为开发语言,开发出了铁路局日装车计划运输效益计算分析系统,并利用郑州铁路局的实际数据,对软件进行了实例研究。结果表明该软件能够帮助货运调度人员进行批车决策,对铁路局提高日装车计划的运输效益有一定的指导意义和参考价值。     

我国老年人异地医保的困境与对策

近些年来城市人口流动频繁,老年人因各种原因的迁移也在逐渐增多,异地医疗费用报销和医保关系转移等问题困扰着越来越多的老年人.目前我国老年人异地就医面临着报销手续复杂、比例较低等困境,地区间利益冲突、各地政策不一致、监管难度大等是造成困难的原因.针对上述问题提出完善异地就医政策和设置定点医院、提高统筹层次,实现省际间医保的转移和最终实现全国统筹三个阶段性的对策.     

基于校企合作模式的高职院校软件技术专业实训基地建设探索

分析了目前软件技术专业实训基地建设的必要性，提出了校企合作下的高职院校软件技术专业校内、校外实训基地建设、管理、运行模式和成效，探讨了建立校企合作实训基地要考虑和解决的问题。     

A supportive architecture for CFD-based design optimisation

Multi-disciplinary design optimisation (MDO) is one of critical methodologies to the implementation of enterprise systems (ES). MDO requiring the analysis of fluid dynamics raises a special challenge due to its extremely intensive computation. The rapid development of computational fluid dynamic (CFD) technique has caused a rise of its applications in various fields. Especially for the exterior designs of vehicles, CFD has become one of the three main design tools comparable to analytical approaches and wind tunnel experiments. CFD-based design optimisation is an effective way to achieve the desired performance under the given constraints. However, due to the complexity of CFD, integrating with CFD analysis in an intelligent optimisation algorithm is not straightforward. It is a challenge to solve a CFD-based design problem, which is usually with high dimensions, and multiple objectives and constraints. It is desirable to have an integrated architecture for CFD-based design optimisation. However, our review on existing works has found that very few researchers have studied on the assistive tools to facilitate CFD-based design optimisation. In the paper, a multi-layer architecture and a general procedure are proposed to integrate different CFD toolsets with intelligent optimisation algorithms, parallel computing technique and other techniques for efficient computation. In the proposed architecture, the integration is performed either at the code level or data level to fully utilise the capabilities of different assistive tools. Two intelligent algorithms are developed and embedded with parallel computing. These algorithms, together with the supportive architecture, lay a solid foundation for various applications of CFD-based design optimisation. To illustrate the effectiveness of the proposed architecture and algorithms, the case studies on aerodynamic shape design of a hypersonic cruising vehicle are provided, and the result has shown that the proposed architecture and developed algorithms have performed successfully and efficiently in dealing with the design optimisation with over 200 design variables.     

Advances in Joint Modelling: A Review of Recent Developments with Application to the Survival of End Stage Renal Disease Patients

The use of joint modelling approaches is becoming increasingly popular when an association exists between survival and longitudinal processes. Widely recognized for their gain in efficiency, joint models also offer a reduction in bias compared with naïve methods. With the increasing popularity comes a constantly expanding literature on joint modelling approaches. The aim of this paper is to give an overview of recent literature relating to joint models, in particular those that focus on the time‐to‐event survival process. A discussion is provided on the range of survival submodels that have been implemented in a joint modelling framework. A particular focus is given to the recent advancements in software used to build these models. Illustrated through the use of two different real‐life data examples that focus on the survival of end‐stage renal disease patients, the use of the JM and joineR packages within R are demonstrated. The possible future direction for this field of research is also discussed.     

Proteus仿真使用中的几个缺陷和应对办法

Proteus仿真软件,是当前EDA工具软件的优秀代表。但在使用过程中该软件存在一些缺陷。本文列举了该软件在模拟仿真中存在的几个缺陷以及我们采取的应对方法,供大家参考和讨论。