Can Convenience and Effectiveness Converge in Mobile Web? A Critique of the State-of-the-Art Adaptation Techniques for Web Navigation on Mobile Handheld Devices

Proliferation of mobile handheld devices and the significant advancement of wireless technologies and infrastructures have become a strong driving force of many mobile applications, including ubiquitous web information access through those devices. Despite the tremendous flexibility, accessibility, and convenience, rendering and navigating Web content on handheld devices suffer from significant usability problems attributable to their physical constraints, especially the small screen size, restricted interaction mechanisms, and low memory. Therefore, improving the effectiveness of web content navigation on those devices is crucial and has attracted increasing attention from both academics and industry. One of the promising solutions is adaptation, which focuses on the content restructuring, rearranging, and visualization. This article attempts to provide a comprehensive review of the state-of-the-art approaches to web adaptation for mobile handheld devices. The study not only categorizes, synthesizes, and compares the pros and cons of major adaptation methods but also discusses the observed problems in research methodology adopted in related studies and highlights future research directions. The article provides an important road map to the researchers and practitioners in this field.     

Epsilon-near-zero or mu-near-zero materials composed of dielectric photonic crystals

We theoretically demonstrate that at certain frequencies two-dimensional dielectric photonic crystals （PCs） may be regarded as either epsilon-near-zero or mu-near-zero materials. We show that the transmission through a slab of such materials upon normal incidence is normally non-unity and decays with slab thickness. However, when the incident angle increases slightly, the transmittance experiences a dramatic increase due to the Brewster effect. The combination of the tunneling and resonance effects makes such materials good candidates for almost perfect bending waveguides and cloaking in waveguides. The zero index also enables applications of focusing and directive emission. At last, the distinction between the single-zero and double-zero media is discussed. In all of the above results, the numerical simulations perfectly match with theoretical predictions from the effective medium analysis.     

Impacts of employee participation and trust on e-business readiness, benefits, and satisfaction

An increasing number of firms have invested large sums in implementing electronic business (e-business). Nowadays, while the e-businesses are fostering rapid industrial growth, employees are the one who factually engage with information exchange, communication and support e-business processes. However, prior literature has paid scant attention in determining e-business value and its drivers from employee perspective. Thus, the present study attempts to investigate how user participation and trust drives e-business value in terms of e-business readiness, e-business benefits, and e-business satisfaction. For this sake, data collected from 143 employees at Taiwanese IT related firms and analyzed with partial least square (PLS) structural equation approach reveal that trust and user participation were significant precursors of employee e-business satisfaction. The results strongly support the contention that trust directly affects e-business satisfaction, and indirectly affects it through e-business readiness and e-business benefits. The research model and findings will help managers implement e-business successfully and offer valuable references for researchers interested in developing related theories.     

洪口电站水轮发电机组电气盘车与导瓦间隙调整

1概述洪口水电站位于福建省宁德市洪口乡大道头村,距宁德市城区63 km,是霍童溪干流梯级开发的第六级电站,是1座以发电为主的中型水库工程,调节库容2.404亿m3。电站装机为混流式机     

一种基于区域分割的图像融合方法

提出了一种基于区域分割的图像融合方法.首先,通过对原图像进行小波分解得到其近似子图和细节子图,对细节子图运用分水岭分割法获得每一层的分割子图用于引导融合过程.然后在分割区域中对原图像小波系数的活动水平及匹配度进行度量,并在组合细节子图系数和近似子图系数的过程中分别采用最大值法则和加权平均法则.最后,通过逆小波变换得到最...     

机械制图CAD与教学

机械制图是工科类,特别是机械类学生的重要专业技术基础课,CAD是现代计算机绘图工具.现在制造业的快速发展带动了相关的绘图设计的快速发展.本文从机械制图CAD在设计制图中的地位谈起,突出了机械制图CAD的基础性.再进一步谈到机械制图CAD的教学的必要性,重点讨论了在教学创新的重要性.以及多媒体测绘室的重要地位,和建设的必要性.     

双以太环形网络技术研究

本文系统地阐述了双以太环形网络技术,对其核心进行了分析,可作为设备接入双以太环形网络的应用参考.     

浅析电子商务中的安全问题

随着现今社会互联网、个人终端技术的飞越发展,电子商务越来越多的出现在人们的生活与工作中,这种全新的商务模式具有便捷、高效率、低成本的特点.同时,这种全新的商务模式对管理水平、信息传递技术都提出了更高的要求,其中安全的重要性尤为突出.     

发电机电气制动方法及其应用研究

利用Matlab对水轮发电机不同别动方法进行了仿真,计算出了不同水轮发电机组在不同的投入转速和不同的制动电流下的制动时间,为水轮发电机电气制动方案的设计以及选择最佳的制动参数提供了重要的依据.     

职业院校计算机网络教学的思考

为提高教学质量、保证学生后续课程的顺利学习,本文从计算机网络课程本身出发,并结合职业院校学生的特点,分别从讲授内容的整合、教学方法的改进、教学手段的更新和实验的精心设计四个方面进行了研究和探讨,强调培养学生解决问题的应用能力,提高教学质量,教学效果.