Wireless multi-hop ad Hoc network has been widely used in military battlefield, emergency communication and so on. However, due to the complicate characteristics of wireless channel, it is diffi-cult to obtain reliable protection and real-time reliability in practice. A design strategy on protocol param-eters for centralized multi-hop ad Hoc network was proposed to maximize the bandwidth utilization under delay constraint. Based on centralized wireless multi-hop ad Hoc network communication mechanism, an end-to-end delay model and a bandwidth utilization model were established, which fully consider the im-pacts of four aspects of parameters, network, traffic, protocol and channel. It is shown that the central-ized scheduling mechanism is more suitable for the smaller network. Finally, an optimization strategy was given to properly design protocol parameters in different network scenarios under delay constraint.

本文在回顾和梳理相关文献的基础上,尝试构建了青年创业领导力、创业警觉性和创业意向关系的概念模型,并利用江苏省青年创业行为的抽样调查数据,采用结构方程分析方法对理论假设进行实证检验.研究表明:江苏省青年创业意向在性别和成长环境上的差异不显著,但是在个人和家庭创业经历上具有显著差异;青年创业领导力各维度与创业意向显著相关,其中创业效能感的影响力最大;创业警觉性在先验知识与团队建设能力对创业意向的影响中起完全中介作用,在资源整合能力对创业意向的影响中起部分中介作用.

Tacit knowledge transfer in start‐up social network provides sustainable development power for starting a busi‐ness ,but normal explicit contract cannot eliminate the short‐term behavior in process of tacit knowledge transfer .A dy‐namic model ,which combines reputation mechanism with principal agent model ,is established based on trust mechanism . This model can better fit individual psychological and behavior characteristics .This article analyzes the role of reputation mechanism in tacit knowledge transfer ,discusses the main factors which influence the reputation mechanism ,and put for‐ward suggestions for motivating tacit knowledge transfer .

In this paper, symbol-error-rate (SER) performance analysis is provided for hybrid cooperation (HC) system in an asymmetric fading environment where the source-to-relay and the relay-to-destination channels experience independent Rayleigh/Rician and Rician/Rayleigh fading, respectively, while the direct channel link between the source and the destination is subject to Rayleigh fading. Unlike most existing relaying protocols which use amplify-and-forward (AF) or decode- and-forward (DF) protocol separately, the HC system takes advantage of both AF and DF protocols simultaneously. Based on the theoretical analysis, analytical expressions for the moment generating function (MGF) of the end-to-end signal-to-noise ratio (SNR) are derived and used to evaluate the SER performance of the HC system with M -ary phase shift keying ( M -PSK) modulation. Numerical and simulation results are presented to verify the theoretical analysis, where we also illustrate the impact of the Rician factors on system performance.

本文采用实证研究方法,考察了大学生创业者个体因素与创业警觉性之间的逻辑关系以及社会创业政策对该过程的影响作用.研究表明,网络支持、先验知识和特别兴趣与大学生的创业警觉性呈显著正相关;社会创业政策在个体因素对创业警觉性的影响过程中发挥部分调节作用.

This paper establishes a factor model of entrepreneurial cognition of students who drop out of universities through reviewing entrepreneurial cognition theory,puts forward theoretical hypothesis based on the impact of individual,universities,and social factors on entrepreneurial cognition,and then discusses the impact with an empirical research.The result shows that individual,society,and universities have significant impact on entrepreneurial cognition and there is a significant correlation between the universities and social factors,but universities and society have no significant correlation to individual factors.This result shows that the entrepreneurial education and policies of modern universities and the business support policies of local government should be improved to adapt to the needs of the students.

随着近年来高等教育事业的蓬勃发展,大学校园广阔巨大的消费市场使校园经济涌现并不断得到发展。同时人们也越来越关注校园经济发展过程中所存在的问题。本文首先对南京及常州两个代表性的大学城的校园经济发展进行了调研,分析这两个地区校园经济发展的异同点,并归纳了影响校园经济发展的主要因素,然后通过对当代大学生消费观的调查,分析了大学生消费观与校园经济之间的相互关系,最后对校园经济发展存在的不足进行思考并提出解决的办法。

After investigating the interrelationship between the courses for industrial engineering majors in Jincheng College of Nanjing University of Aeronautics & Astronautics,a structural model of the curriculum system is constructed based on interpretative structural modeling. In addition,combined with the design principles of professional curriculum system and the investigation findings,a new curriculum system is reformulated so as to improve the current teaching and learning.

Make a reasonable evaluation of teachers is a very important job in teaching management in universities.From the student point of view,the evaluation to teaching activities of teachers is an entry point for improving university teaching evaluation system.Based on this,build a college teaching evaluation index system,their scores were calculated to prove valuable reference information for the improvement of higher education teaching evaluation system and take advantage of the seasonal ratio method.

教学计划是实现高校人才培养目标的总体设计蓝图,是高校组织和管理教学过程的主要依据,也是高校对教育、教学质量监控与评价的基础性文件。本文根据工业工程专业大学生就业能力的基本结构,建立了工业工程专业教学计划整体功能指标递阶层次结构图,通过层次分析法,对工业工程专业教学计划功能评估权重值,表明在制定教学计划时,应充分重视基础能力,理论联系实践,师资队伍建设,为高校各专业制定和评价教学计划提供了理论依据。

The employability of college students is composed of a series of explicit key characteristics and implicit key skills.Based on literature analysis and market survey,we design a questionnaire to explore the employability’s structure of industrial engineering.Through the survey of manufacturing enterprise in Jiangsu province,we use exploratory factor analysis to construct the employment ability model.The results show,the college students employability includes three aspects of knowledge,general quality and professional quality,the general quality includes personal inner quality,analysis and leadership ability,self-development ability,work ability,and professional quality including the ability to analyze logistics and production system.

本文研究了工业工程专业实践性教学体系的构建,按照由浅入深的基本原则,建立了该专业实践教学模式。根据企业生产开发的流程,理顺了各门实践性课程之间的相互联系,形成了工业工程专业教学实践课程体系。最后本文针对工业工程专业的综合课程设计进行设计,将各实验模块群进行实践运用,使学生能够从整体角度了解工业工程方法和技术在企业各管理阶段的应用,真正达到培养学生动手能力的目标。

随着互联网技术的迅速发展及网络的普及率越来越高,网上购物正在为越来越多的大学生所接受,以此同时,发展校园C2C成为了满足大学生消费需求的方法之一。本文首先研究了目前我国C2C产业和校园C2C两种电子商务模式的发展现状,然后编制了大学校园C2C调研问卷,在南京三所高校进行发放,并将收集的数据通过SPSS软件进行统计分析,了解了目前大学生对于网络消费的基本观点,同时研究了不同性别、年级的大学生对校园C2C发展的态度,最后对大学生校园C2C的发展前景提出了新的策略和见解。

岗位素质模型可以运用于企业中人力资源管理的各个方面,但是目前很多企业的的应用并不成功。究其原因,不在于模型本身的优劣,而是使用模型的具体方法。本文从战略导向的人力资源管理出发,探讨了岗位素质模型在员工绩效管理中的一些运用,特别是如何建立战略导向的绩效管理体系、如何制定员工的提升、发展规划等,为素质模型的应用提出一些思考。

目前研究各种客运方式在综合交通中的分担问题主要是从影响交通选择的微观因素出发,通过建立效用模型来分析交通分担率。这种方法的一个重要缺陷是忽视了交通运输方式与宏观因素之间相互影响、相互促进的发展模式。特别就我国目前交通体系而言,交通分担不仅受到运输市场不同运输方式相互竞争的影响,更应该受到经济发展阶段、产业结构调整、人口发展和分布等综合因素的影响。本文主要从影响客运交通方式的宏观因素出发,通过重新构造影响变量,利用计量经济的分析方法,构建客运交通方式的分担模型,并对未来提升我国航空客运提出建议。

With the development of economy and air transport, air freight transport play an important role in air transport market, and become a new growth point at the same time. The prediction methods of freight handle used currently have some defects and lead to the result of prediction with big deviation to the real situation. Based on the basic prediction methods and the specialty of freight transport, a new method of how to predict the airport freight handle is presented and a case study is made.