真空辅助压浆技术中对水泥浆的技术要求

后张法预应力结构施工主要的控制点为水泥浆的质量、施工工艺、养护条件三个方面。而水泥浆的质量是最主要的前提条件,只有水泥浆的质量达到严格、有效的控制,才有可能保证后面两道工序的最大效果。因此,本文主要介绍真空辅助压浆技术施工中对水泥浆的技术要求。     

Design requirements for a planning information system for training and personnel technology RDT&E

Objectives and information requirements are proposed for the design of a planning information system for Training and Personnel Technology RDT&E. Objectives are (1) improved procedures for relating Training and Personnel Technology RDT&E to defense objectives; (2) continuous coordination of plans through the establishment of a computer-assisted, DoD-wide RDT&E plans information sharing system; (3) improved labeling of work units and simplification of top management presentations by organizing large numbers of small technically-described work units into broad thrusts that identify deliverables with obvious payoff for defense; and (4) more systematic procedures for program evaluation and resource allocation decisions. Issues are identified that should be addressed during the design stage of such a system.     

Information technology, GIS and democraticvalues: Ethical implications for ITprofessionals in public service

Information technologies (IT) play a criticalrole in transforming public administration andredefining the role of bureaucracy in ademocratic society. New applications of ITbring great promises for government, but at thesame time raise concerns about administrativepower and its abuse. Using GeographicInformation Systems (GIS) as the centralexample, this paper provides the philosophicalunderpinnings of the role of technology anddiscusses the importance of an ethicaldiscourse in IT for public serviceprofessionals. Such ethical discourse must bebased on upholding the democratic values andpreserving the institutional integrity of ITprofessionals in public office.     

面向“基础研究创新+产业技术实现”的高价值专利顶层设计

高价值专利是技术体系与专利制度良性互动的结晶, 是科技强国战略与相关行业协同发展的成果。高价值专利顶层设计对提升专利质量和科技强国具有重要意义。文章基于SWOT-AHP分析高价值专利对象领域技术和产业发展现状,深度挖掘所研究对象领域的基础研究和产业技术发展驱动因素、关键知识图谱、核心专利、技术路线图以及产业竞争情报等,并以电能质量治理为例简要阐明。从宏观层面、中观层面和微观层面构建了高价值专利顶层设计框架,以期为提升我国高价值专利的创造、运用和管理提供理论指导。     

Integrated design of switching control and mobile actuator/sensor guidance for a linear diffusion process

This paper is concerned with the exponential stabilization problem for a class of diffusion processes described by a linear parabolic partial differential equation (PDE) using mobile collocated actuators and sensors. Each collocated actuator/sensor pair is capable of moving within the respective spatial domain divided in advance and a mode indicator function is employed to indicate the different modes for all actuator/sensor pairs according to whether each actuator/sensor pair is static or mobile. By utilizing Lyapunov direct method, an integrated design of switching controllers and mobile actuator/sensor guidance laws for the diffusion process is developed such that the resulting closed-loop system is exponentially stable. Finally, numerical simulations are presented to illustrate the effectiveness of the proposed design method.     

“导航式”科技期刊网站的设计分析

[目的]为建立权威、专业、涵盖范围广泛的科技期刊导航网站提供借鉴和参考。[方法]从作者、读者以及期刊发展的需求分析入手,阐释科技期刊导航网站建设的必要性,借鉴已有的网址导航网站,对学术期刊导航网站的建设内容与方案进行分析与思考。[结果]提出了科技期刊导航网站在初期建设阶段和后期建设阶段所应解决的主要问题,就网站架构、网站版本等方面提出了初步建设方案。[结论]提出了"导航式"科技期刊网站建设的初步构想,可为学术期刊网站的丰富和发展提供启迪和参考。     

Review Article: A Framework for a Safe and Ethical Healthcare System

New trade theory emphasises the important role that international trade plays in advancing technologies. This study examines the impact of international trade on firm research and development investment (RDI). Specifically, it analyses the impact of technology imports and product exports respectively on firm RDI in the high technology sector of China. The hypotheses are tested against 1111 firms in the high technology sector in Zhejiang province. Neither technology imports nor product exports have a positive impact on firm RDI at an aggregated level. However, disembodied technology imports have a significant positive impact on firm RDI, while non-high technology product exports show a significant negative impact.     

Mapping the technology footprint in design for social innovation

Technology and design are increasingly recognized as important drivers of social innovation (SI). While new-age technologies can disrupt the realm of social innovation through resource-efficient solutions and multiple outcome benefits, the appliction of design thinking approaches and techniques can enhance the potential for SI through human-centered participatory processes and a socially shared vision and impact. Despite extensive research focusing on SI practices driven by technology and design respectively, few studies have concentrated on the synergistic effects of technology and design in the field of SI. This paper addresses this gap through an exploratory study on the incorporation and role of technology in the practice of design for SI. By applying the mapping approach to a sample of 81 Design-enabled Innovation (DEI) pilot projects in the DESIGNSCAPES project, the distribution, hosts and manifestations of technology footprints are identified, taking into account the multi-phase innovation processes and multifaceted role of design. Our findings suggest that in design-supported SI, technology can be integrated in a systematic and conventional manner across a range of domains related to people, interactions, contexts, and artefacts and that its interaction with design actions is highly dependent on the different roles of design, followed by a further discussion of a conceptual argument regarding the possible role of technology in supporting design for SI. Based on these findings and results, the article concludes with the limitations of the study and possible theoretical and managerial implications.     

增强现实技术对建筑类期刊新技术出版设计的启示

【目的】 研究增强现实(Augmented Reality,AR)技术在期刊出版的应用趋势,为建筑类期刊的AR出版提供借鉴。【方法】 采取经验总结的研究方法,通过研究其它类型期刊的AR出版技术应用现状,提出建筑类期刊新技术出版的应用思路。【结果】 建筑类期刊具有AR技术应用的基础和需求,利用AR技术能够延伸建筑类期刊出版形态,提升读者的阅读体验,增强建筑类期刊的盈利能力。【结论】 建筑类期刊应重新定位AR应用的出版价值,充实期刊新技术设计与运营团队,利用AR技术来增强期刊内容传播效果,构建期刊广告盈利的新模式。     

Invoking politics and ethics in the design of information technology: undesigning the design

It is a truism that the design and deployment of information and communication technologies is vital to everyday life, the conduct of work and to social order. But how are individual, organisational and societal choices made? What might it mean to invoke a politics and an ethics of information technology design and use? This editorial paper situates these questions within the trajectory of preoccupations and approaches to the design and deployment of information technology since computerisation began in the 1940s. Focusing upon the dominant concerns over the last three decades, the paper delineates an interest in design and use in relation to socio-technical theories, situated practices and actor-network theory. It is argued that each of these approaches is concerned with a particular form of politics that does not explicitly engage with ethics. In order to introduce ethics into contemporary debates about information technology, and to frame the papers in the special issue, it is argued that Levinas’ ethics is particularly valuable in problematising the relationship between politics and ethics. Levinas provides a critique of modernity’s emphasis on politics and the egocentric self. It is from a Levinasian concern with the Other and the primacy of the ethical that a general rethinking of the relationship between politics, ethics and justice in relation to information and communication technologies can be invoked.     

科技期刊论文同行评议中伦理学风险控制与优化要点

【目的】 针对国内科技期刊论文同行评审(PR)领域的伦理学现况进行分析,并就发现的问题提出改善的建议及措施。【方法】 通过文献分析,荟萃总结科技期刊论文PR中伦理学风险控制与优化要点。【结果】 围绕上述核心问题,从外审评阅过程(PR开始之前、过程中及结束之后)伦理学问题分析、PR过程管理与控制及伦理学问题策略优化等部分展开论述,探讨PR相关方(编辑、评阅者及作者等)利益冲突、风险规避及隐私保密等问题。【结论】 研究结果可为当前PR规范及伦理学实践提供参考。     

Continued use of wearable fitness technology: A value co-creation perspective

Despite the widespread adoption of the wearable fitness tracker (WFT), the phenomenon of acceptance-discontinuance has limited their value. This phenomenon has called attention to the issue of continued WFT use, with emphasis on how the value of the WFT can be sustained. Using the concept of value co-creation, this research aims to understand the effects of actor-to-actor interactions on continued use of a WFT, with a specific focus on the interactions generated through two WFT services: choice and involvement of dietitians. Considering a WFT’s service system as part of the greater healthcare ecosystem, this paper also considers the moderating role of self-efficacy in health management as an internal factor and healthcare system satisfaction as an external factor. A randomized experimentation using a scenario-based survey was conducted, and the data generated by 423 participants were analyzed. The results emphasize the significant positive effect of dietitian involvement on users’ intentions to continue using their WFT. Dietitian involvement not only improves continued use intention, but also realizes the effect of choice. The positive effect of dietitian involvement is robust, regardless of user satisfaction with the healthcare service system. Self-efficacy in health management also plays a key role in positively moderating the effect of choice on continued use intention. This study expands information system literature by providing theoretical insights into continued use from the perspective of value-co-creation. Our findings also have implications for the development of service systems for fitness wearables.     

Treating sensitive topics online: a privacy dilemma

This paper aims to provide new insights to debates on group privacy, which can be seen as part of a social turn in privacy scholarship. Research is increasingly showing that the classic individualistic understanding of privacy is insufficient to capture new problems in algorithmic and online contexts. An understanding of privacy as an “interpersonal boundary-control process” (Altman, The environment and social behavior, Brooks and Cole, Monterey, 1975) framing privacy as a social practice necessary to sustain intimate relationships is gaining ground. In this debate, my research is focused on what I refer to as “self-determined groups” which can be defined as groups whose members consciously and willingly perceive themselves as being part of a communicative network. While much attention is given to new forms of algorithmically generated groups, current research on group privacy fails to account for the ways in which self-determined groups are affected by changes brought about by new information technologies. In an explorative case study on self-organized therapy groups, I show how these groups have developed their own approach to privacy protection, functioning on the basis of social practices followed by all participants. This informal approach was effective in pre-digital times, but online, privacy threats have reached a new level extending beyond the scope of a group’s influence. I therefore argue that self-determined sensitive topic groups are left facing what I present as a dilemma: a tension between the seemingly irreconcilable need for connectivity and a low threshold, on the one hand, and the need for privacy and trust, on the other. In light of this dilemma, I argue that we need new sorts of political solutions.     

Ethical concerns in rescue robotics: a scoping review

Ethics and Information Technology - Rescue operations taking place in disaster settings can be fraught with ethical challenges. Further ethical challenges will likely be introduced by the use of...     

On the value of information in system design: A framework for understanding and aiding designers

Computer-based decision support systems for designers are considered. The nature of system design is discussed in terms of alternative philosophies, processes and methods. The design task is characterized as a form of problem solving, which leads to discussion of types of design problem and designer/problem-solver, as well as training of designers/problem-solvers. This general background serves as a basis for analyzing information requirements for design. The value of information is defined as having three attributes: (1) reduction of uncertainty, (2) task relevance and (3) appropriateness of form. These attributes, in conjunction with characterizations of stages/tasks of design and approaches to stages/tasks, are used to determine information requirements and the consequent nature of information seeking. The results of this requirements analysis are employed as a basis for consideration of computer-aided information seeking. Types of information/aiding discussed include: facts, fantasies and feedback, as well as adaptive aiding and training, all of which are espoused as the key elements of flexible systems for computer-aided design and computer-aided engineering.     

Event-based dynamic output-feedback controller design for networked control systems with sensor and actuator saturations

This paper is concerned with the problem of event-triggered dynamic output-feedback H_∞ control for networked control system with sensor and actuator saturations. The event-triggered scheme combined with sensor saturation is first introduced to judge whether the newly sampled signal should be transmitted to the dynamic output-feedback controller or not. Under this scheme, the concurrent closed-loop system is first modeled as a control system with an interval time-varying delay and nonlinear items. Through constructing the Lyapunov–Krasovskii functional and employing linear matrix inequality approach, sufficient conditions for H_∞ asymptotical stability are derived for the networked control system; furthermore, under the above stability condition, a dynamic output-feedback controller and the corresponding event-triggered parameters are co-designed through linear matrix inequality approach. Lastly, a numerical example is employed to prove the practical utility of this method.     

Information management: A challenge for business education

The paper argues that too much of the focus of attempts to integrate IT into the business curriculum has been on either the acquisition of IT skills or on attempts to use IT to support the teaching process. Whilst accepting that these are necessary developments, it is argued that more attention needs to be placed on the meaning of information. This argument is developed through a review of the potential impacts of IT on the role of the manager. From this review it is argued that more emphasis is needed on embedding information management in the curriculum and that a fundamental underpinning for this is the notion of information literacy. A number of areas for further research and development are outlined.     

奥运体育场馆防火系统设计技术研究

1 项目简介 该项目由国家科技部、中国科学院等单位联合组织资助,由中国科学技术大学火灾科学国家重点实验室负责承担。项目总体目标是:根据“科技奥运、绿色奥运”主题的重大需求,针对奥运体育场馆火灾防治的关键环节,研究开发具有知识产权的激光图像火灾气体探测技术、清洁高效细水雾和混合