C语言的指针

以具体实例详细介绍了C语言指针复杂说明的理解方法;分析指针使用中的常见错误及解决方法;利用指针和动态分配函数实现程序运行中堆的自由空间的支配和释放。     

美国在地化教学改革及其启示

在地化教学是一种开发课程和实施教学的方法.这种方法要求充分利用当地的人文环境和自然环境,从当地选取素材编制教学活动,旨在帮助当地学生更好地达到统一规定的教育要求,同时增进他们对当地社会、文化和生态环境等方面的了解,加强他们对当地的情感联结和责任担当.在地化教学在美国兴起主要是受到环境保护运动、反标准化教育改革以及农村教...     

基于LPC1752和ATT7022C的三相智能仪表的设计

随着我国经济的高速发展,电力已然成为我国最重要的能源.为了满足我国新能源的建设需求,设计了一种三相智能仪表.该仪表主要采用了高精度三相电能专用计量芯片ATT7022C以及飞利浦公司的LPC1752,本智能仪表集电能采集、显示、通信于一体,同时具备DSP的高效计算能力.实现了智能仪表的多功能、人机交互、纯软件校表等优点,具有很高的使用价值.     

关于超二次Hamilton系统周期解的注记

用极小极大方法得到了一类超二次一阶Hamilton系统的周期解.     

医院数字化药品库房管理应用研究——以江西省某三甲医院为例

本文以建立一个数字化的新型医院药品库房,提高准确率和工作效率为目的。利用二维码技术、移动数据采集技术和无线网络,将传统模式下药品验收、盘点、药品请领等工作环节充分电子化。新模式下药品验收入库、盘点、药品请领完成时间分别减少70%、41%和40%。数字化技术显著提高了录入的效率和准确率,减轻工作人员的工作负荷。     

The social structure of entrepreneurship as a scientific field

Entrepreneurship as a scientific field has grown significantly, irrespective of the measures used. In this article we raise the question: How can we understand the evolution and success of entrepreneurship as a scholarly field? In particular, we focus on the social structure of entrepreneurship scholars to explain (1) how they are becoming integrated into larger scholarly communities and (2) how they differ from the way scholars integrate within the field of innovation studies. Based on a unique database and responses from 870 entrepreneurship scholars, we demonstrate that entrepreneurship can be regarded as a phenomenon-driven field bound together by a shared communication system and social interaction rather than strong theoretical influences, i.e., a social scholarly community. We identify two broader social communities; one embedded in entrepreneurship conferences that includes a rather eclectic group of entrepreneurship scholars, and another related to entrepreneurship journals and entrepreneurship economics, characterized by a stronger domain orientation. In contrast, scholars in innovation studies tend to be more theory-driven and are bound together by their disciplinary and theoretical background, i.e., an intellectual scholarly community.     

Do University policies make a difference?

The purpose of this paper is to examine whether the technical universities have been more successful in facilitating the spillover and commercialization of knowledge. We compare the impact of technical and general universities on the performance of knowledge-based firms. Based on a unique data set consisting of publicly held high technology firms, the empirical evidence suggests that, in fact, firm performance is not influenced by the type of university. Technical universities do not have a differential impact on firm performance from more general universities.     

一个异常处理统计工具的设计与实现

异常处理机制是一种用来处理和检测异常的机制,目前已成为C 等面向对象程序设计语言的一个基本设施.奉文首先对C 异常处理机制进行了简单的讨论,然后详细介绍了一个异常处理统计工具的设计与实现.     

基于C／S与B／S架构的IM软件的研究与分析

IM软件是当今以Internet网络为基础的实时通信系统,在实现上主要基于两种架构,分别是基于C／S架构和B／S架构的。基于C／S架构的IM软件主要使用了TCP或UDP协议、P2P~Socket等技术,实现起来较容易,但是用户需要自己安装客户端软件;基于B／S架构的IM软件主要应用了Ajax、ServerPush、服务器轮询等技术,实现起来比较复杂,但是用户不需要安装客户端软件,只需通过浏览器即可实现网上聊天功能。