Servitization of manufacturing in the new ICTs era: A survey on operations management

Servitization of manufacturing has become one of the main pathways for transition and upgrade in the manufacturing industry. New information and communication technologies (ICTs), such as the Internet of Things, Big Data, and Cloud Computing have enabled the servitization of manufacturing in terms of value creation, resource management, and supply chain management. This study presents a comprehensive review on the servitization in operations management in the era of new ICTs. A new value chain framework is proposed under the business model that revolves around servitization, which showcases the new activities and ways of implementation in the era of new ICTs. The virtualization, configuration, and evaluation of integrated manufacturing and service resources are analyzed. In particular, the methods used in new ICT-supported resource management platforms are surveyed. Problems in the supply chain management in manufacturing services (including the selection of partners, as well as the coordination, planning, and scheduling among members) are presented. This study concludes with a discussion on state-of-the-art servitization in operations management in the era of new ICTs.     

基于小波变换的Wiener滤波投影预处理算法在图像重建中的应用

研究了一种将小波变换与Wiener滤波相结合用于投影数据预处理的算法。由于小波变换具有多分辨率分析特性,通过小波多尺度分析和小波系数控制,并结合Wiener滤波具有MMSE上最优性能的特点提出一种二者相结合的方法用于投影数据降噪预处理。对该算法进行实验仿真,结果表明,降噪后重建的图像主观质量得到明显改善,重建图像的噪声得到有效抑制。峰值信噪比方面可比一般的降噪方法提高5-12dB。     

ICT若干发展趋势探讨

本文概述了互联网时代运营商面临的一些主要问题,进而详细阐述了当前3个热点领域,即云计算,智能管道和智能终端,并分别就各自的概念、特点、推进实施以及今后发展等方面进行了具体分析,指出了“云管端”是ICT未来重要的发展趋势.最后文章提出了若干思考建议.     

ICT环境下教师专业发展研究

以146名教师为研究对象,通过调查来获得ICT环境下教师专业发展在职培训的一般状况和特点.结果发现,绝大多数教师不仅认识到远程教育在职培训对其专业发展具有积极影响作用,而且也看到了实施远程教育还存在许多障碍,并依据研究结论提出相对应的措施和建议.     

Review of heat Conduction,Second Edition,S. Kakac and Y. Yener

In some species, such as subalpine fir (Abies lasiocarpa [Hook] Nutt), the water content of the confined zones in heartwood is as high as or greater than that of sapwood. Such wet zones of heartwood are referred to as “wetpocket” or “wetwood.” Wood products from subalpine fir forests are adversely affected by the wetwood-associated problems, particularly during the drying process. The objectives of the study were as follows: (1) to investigate feasibility of a high X-ray energy industrial computed tomography (ICT) scanner for imaging wetwood; and (2) to determine changes of the 2-D and 3-D moisture profiles (from core to shell) at different drying times.

Although medical CT scanning has been used for attaining signal intensity profiles of typical wood at different drying times, the technology has not, to date, been used for the study of wetwood phenomenon. This study presents, for the first time, results from the ICT imaging of the wetwood phenomenon. The results indicate that the ICT imaging system provides a powerful technique for imaging wetwood at different drying times. In addition, the results show that during the initial phase of drying, almost flat moisture profiles were observed in all wood types except for the wetwood, which showed a relatively higher moisture profile. A much slower (sluggish) drying development pattern at each increment from core to shell was found within the wetwood zone than normal wood regions along the width, thickness, and length of the board.     

基于GPU的工业CT三维图像任意断面剖切算法

研究工业CT三维图像的内部信息是无损检测的重要途径。为了实时观察三维图像的任意断面,获取数据信息,提出一种基于GPU的体绘制任意断面剖切算法。该算法基于图形处理器（GPU）单指令多数据流（SIMD）计算方式,通过并行计算内积的方法确定体素与切面的位置关系。当体素位于切面外侧时,则将体素设置为完全透明,使其对显示图像没有贡献,实现了任意断面剖切。还可以实现多断面剖切和结合传输函数的剖切。试验证明,该算法达到交互速度,能够应用于工业无损检测过程中。     

The use of ICT in primary schools within emerging communities of implementation

To illustrate the conditions under which successful innovation adoption takes place, this paper focuses on the implementation of information and communication technologies (ICT) through emerging communities in schools. Two types of such communities are described in terms of the degree of participation in the implementation: school-wide communities and enclaves. The article describes implementation practices in four primary schools with reported high ICT use, selected as case-studies. Four criteria, reflecting the domain, personnel relationships, policy and implementation goals and strategies, as well as staff consistency, are employed to outline the existence and types of communities of implementation within these schools. Findings indicate that, although both school-wide communities and enclaves are present in successful schools, enclaves – compared to school-wide communities – are related to lower levels of implementation. Based on these findings the authors discuss policy directions towards the development of school-wide communities as a purposeful implementation strategy to help transition ICT institutionalization from the initiation to the habitualization stage.     

OLES: an instrument for refining the design of e-learning environments

Abstract Designing and implementing effective e-learning is a complex process, which involves many factors. Lecturers need to constantly consider, evaluate and adjust these factors to provide effective e-learning environments for students. In this paper, we report on the design and development of the Online Learning Environment Survey (OLES), an instrument which can be used to gather and represent data on students' 'actual' (experienced) and 'preferred' (ideal) learning environments. We describe the use of this instrument in blended learning environments with university classes, illustrating how OLES can be used by educators striving for good practice in the design of effective online learning environments.     

The Architecture of Global ICT Programs: A Case Study of E-Governance in Jordan

The focus of this paper is on e-governance policy initiatives in Jordan as a case study of the architecture of ICT programs and of the global transformation of government. We find that global ICT programs introduce new and universal modes of organising centered on innovation and technology initiatives situated across various boundaries, territories and organisational domains and implemented through a novel mix of policy instruments, international institutions, business interests and techno/managerial concepts. Global ICT programs include the development and use of portals, interactive applications an also other ICT programs which aim at the electronic provision of government's services. We conclude that casting these issues as global ICT programs could cater for a much broader inter-disciplinary significance to guide the policy direction of future e-governance initiatives and to evaluate the extent to which the architecture of global ICT programs can contribute to the ambitious targets set by the Millennium Development Goals.     

Are we Building a Better World with ICTs? Empirically Examining this Question in the Domain of Public Health in India

As social scientists engaged in Information Technologies for Development (IT4D), a question we need to necessarily engage with is “are we building a better world with Information and Communication Technologies (ICTs)?” This question, first posed by Professor Geoff Walsham in the IS field, was the topic of my plenary discussion at the IFIP 9.4 meeting in Jamaica 2014, and had now been further developed to this “view from practice” paper for this journal. A first step in this paper has been the reformulation of the question which Professor Walsham raised: “What distortions and obstacles are created by the historical, material, and institutional conditions, and how these shape our efforts of ICTs creating a better world?” This reformulation is done to bring in more explicitly the political dimension into the question, and to nuance the technological deterministic argument implied in the question of technology (always) creating a better world. Taking an empirical example of an ICT intervention from the public health sector in India, deliberately chosen to emphasize distortions typically seen is similar Information and Communication Technologies for Development (ICT4D) projects, the analysis focuses on understanding the conditions of distortions, why they occur, and what can be done differently to contribute to our notion of a better world.