嵌入式系统设计课程教学改革

探讨嵌入式系统设计课在改进教学方法,调整教学内容,加强实践教学环节等方面的做法和体会.     

The Impact of Coordination Methods on the Enhancement of Business Writing

Universities with limited resources are being pressured to cover more material within their degree programs. Because of this, schools are looking to integrate material from different classes. This paper sets out to determine if students can learn business writing within the context of another class, specifically, an information systems class. The goal is to eliminate the need for a separate business‐writing course. However, the students will have to learn the material with limited support in order not to place an additional load on the instructor. This study investigates whether individuals can develop their business‐writing skills during the course of repeated group work and whether there are differences in the level of their learning, based on collaborative media. The results show that individuals can learn business‐writing skills with a minimum of support through direct instruction. In addition, there is no difference between individuals working in face‐to‐face (F2F) groups and those working in groups using electronic collaborative work (ECW) systems.     

Study on dynamic response of embedded long span corrugated steel culverts using scaled model shaking table tests and numerical analyses

INTRODUCTION On Jan. 17, 1995, the Hyogoken-nanbu earth-quake in Kobe, Japan, caused great destructive and damage to underground structures, such as subway structures, mountain tunnels, multipurpose under-ground ducts and other underground structures, which had previously been considered to be resistant to earthquake effects (JSCE, 1996; ECRHAED, 1998). This earthquake revealed that a number of critical issues should be added in the seismic design and seismic strengthening of undergr…     

嵌入式软件开发环境中操作系统抽象层的设计与实现

本论文论述了嵌入式软件开发环境中操作系统抽象层存在的必要性 ,并对其如何实现给予了探索 ,特别是对利用面向对象的思想实现抽象层方法给出了源代码级的阐述     

A hardware/software co-optimization approach for embedded software of MP3 decoder

INTRODUCTION The rapid evolution of current consumer elec-tronic systems has been demanding that embeddedsystems have extremely short time-to-market simul-taneously with very low costs. As a result, it is betterby implementing large parts of the system function-ality in embedded software running on processor coreThe solutions range from general-purpose processorcores, digital signal processor cores (DSPs) and ap-plication-specific instruction-set processor cores(ASIPs). To achieve hig…     

浅谈康熙统一台湾的现实意义

台湾问题是我国当前面临的一个事关国家主权领土统一、完整的关键问题。在坚持“一国两制”、“和平统一”的基本原则下,借鉴康熙收复台湾的历史经验,采取军事、政治、经济、统一战线等多种途径,是解决台湾问题的有效策略。     

Measuring Student Perceptions of Blackboard Using the Technology Acceptance Model

Web Enhanced Instruction (WEI) is not intended to replace the traditional classroom setting, but rather to supplement the traditional lecture with course content that can be accessed from campus or the Internet. WEI has the potential to extend the boundaries of traditional classrooms by providing new opportunities for communication and interaction between students and the instructor. While the potential benefits of augmenting the traditional class with WEI have been recognized and discussed, what has remained largely unknown are student reactions to WEI as an addition to the traditional lecture. The Technology Acceptance Model (TAM) has been widely used in the Information Systems research to gather user reactions to information systems. The TAM examines users' perceptions of Usage, Usefulness, and Ease of Use. This research applied the TAM to the academic setting to measure student reactions to Blackboard, the WEI tool used in this study. Using several multivariate methods, results suggest that students (n = 692) found that the Blackboard elements which are associated with Course Content (Course Documents, Lectures, Student Tools, Announcements, and Quizzes) are used more often and are seen as more useful than those items that provide Course Support and communication (Discussion Board, External Web Sites, Faculty Information, and E‐Mail).     

Research capacity for local innovation: the case of conservation agriculture in Ethiopia,Malawi and Mozambique

Purpose: The limited uptake of improved agricultural practices in Africa raise questions on the functionality of current agricultural research systems. Our purpose is to explore the capacity for local innovation within the research systems of Ethiopia, Malawi and Mozambique.

Design/methodology/approach: Using Conservation Agriculture (CA) as a case study, we qualitatively explore with 26 locally based agricultural researchers the context of CA research and promotion, including their perceptions on persistent research gaps and issues in closing them.

Findings: Respondents identified that CA was not yet a finished product, with concerns regarding the benefit, feasibility and relevance of CA implementation. They asserted that while further adaptation was required, they were unable to do this due to institutional constraints within their research, extension and policy contexts.

Practical implications: We find that CA continues to be considered a donor-driven intervention in its current form and requires substantial further adaptation to local contexts before researchers will deem it ready for farmer uptake. The five research gaps identified by respondents highlight practical areas where further adaptations must occur.

Theoretical implications: Our findings suggest a lack of participatory research and extension most likely reflects limited financial, human and social capital to implement more participatory approaches. Without addressing these capacities, widespread adoption of complex farming systems change appears unlikely.

Originality/Value: Whilst many studies have identified a need for local innovation to enable CA utilisation, few have qualitatively explored directly with local researchers the capacity of such systems to do so. We address this gap in the literature.     

校园网布线系统性能分析

布线系统地优劣直接影响校园网的性能及网络转型。探讨校园网布线系统的选型及性能测试。     

基于GIS产品的软件测试方法研究

随着信息技术的飞速发展,GIS软件产品已广泛应用于与地理坐标相关的几乎所有领域,软件的规模和复杂度都有很大的提高。因此,提高软件质量及可靠性已成为当前软件工程领域的重要任务。软件测试是保障软件质量的有效手段,面向对象软件测试是面向对象软件开发的不可缺少的一环。笔者从面向对象程序的特点出发,描述如何对GIS软件的分析和设计模型进行测试,强调将软件测试思想融合到软件开发的各个阶段。