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1.
Quantum computing technologies have become a hot topic in academia and industry receiving much attention and financial support from all sides. Building a quantum computer that can be used practically is in itself an outstanding challenge that has become the ‘new race to the moon’. Next to researchers and vendors of future computing technologies, national authorities are showing strong interest in maturing this technology due to its known potential to break many of today’s encryption techniques, which would have significant and potentially disruptive impact on our society. It is, however, quite likely that quantum computing has beneficial impact on many computational disciplines. In this article we describe our vision of future developments in scientific computing that would be enabled by the advent of software-programmable quantum computers. We thereby assume that quantum computers will form part of a hybrid accelerated computing platform like GPUs and co-processor cards do today. In particular, we address the potential of quantum algorithms to bring major breakthroughs in applied mathematics and its applications. Finally, we give several examples that demonstrate the possible impact of quantum-accelerated scientific computing on society. 相似文献
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Semiconductors, a significant type of material in the information era, are becoming more and more powerful in the field of quantum information. In recent decades, semiconductor quantum computation was investigated thoroughly across the world and developed with a dramatically fast speed. The research varied from initialization, control and readout of qubits, to the architecture of fault-tolerant quantum computing. Here, we first introduce the basic ideas for quantum computing, and then discuss the developments of single- and two-qubit gate control in semiconductors. Up to now, the qubit initialization, control and readout can be realized with relatively high fidelity and a programmable two-qubit quantum processor has even been demonstrated. However, to further improve the qubit quality and scale it up, there are still some challenges to resolve such as the improvement of the readout method, material development and scalable designs. We discuss these issues and introduce the forefronts of progress. Finally, considering the positive trend of the research on semiconductor quantum devices and recent theoretical work on the applications of quantum computation, we anticipate that semiconductor quantum computation may develop fast and will have a huge impact on our lives in the near future. 相似文献
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高能物理一直是信息技术发展的主要推动者之一。现代高能物理产生的海量数据对计算机技术提出巨大的挑战。为了应对这些挑战,国内外高能物理领域的科学家根据数据处理的特点建立新的计算平台用于传输、储存及分析处理PB量级的数据。文章介绍了现代高能物理实验及数据处理的发展,并描述了高能物理的计算模型以及以网格技术为代表的数据密集型计算平台;详细介绍了数据密集型网格平台在LHC实验、BESIII实验中的应用以及中国的数据密集型网格平台。并对云计算等新技术在高能物理领域的应用进行了展望。 相似文献
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体内生物计算模型是基于生物体内各种生化分子以特定的形式互相协作、处理信息的能力而出现的一种新的计算模型,是近年来计算机科学与分子生物学交叉产生的前沿研究领域。该领域的研究使得人们可以深入理解生物体信息处理能力以及获得对这种能力的有效操控,这在计算机科学、生物学、医学上有着深远的影响。文章介绍了近几年在体内构建分子逻辑电路、分子状态机等方面的研究进展,并对未来的发展方向进行了展望。 相似文献
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Edward R. SykesAuthor Vitae 《International Journal of Information Management》2011,31(4):385-394
Collaboration is an important aspect for virtually all workplace environments. Workplaces often encourage and foster collaboration in a variety of ways with the purpose to collectively focus the group's attention on a specific problem and solve it as quickly and as efficiently as possible. While collaboration is generally viewed as a positive aspect of the workplace, the negative aspect—interruption—cannot be ignored. Interruptions are an important research area of human-computer interaction and with the growth of pervasive or ubiquitous computing on the rise, the number of interruptions we experience on a daily basis is also growing. It is for these reasons that interruption is and will continue to be a key issue in workplaces.This report presents the findings of a qualitative research project which explored interruptions in a mid-size software development company based in Ontario, Canada. The purpose of this research was to identify the types of interruptions (both on- and off-task) that occur during typical office software related activities, explore the contextual characteristics surrounding these interruptions, and identify methodologies that could be used to reduce the cost of interruptions and increase employee effectiveness and satisfaction. 相似文献
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三值TTL极性变换电路 总被引：3，自引：0，他引：3
对TTL门电路的结构进行了分析,并在此基础上提出了各种三值TTL极性变换电路的设计.设计的电路已用SPICE程序予以计算机模拟,结果表明它们具有正确的逻辑功能及与二值TTL电路相当的瞬态特性. 相似文献
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阈值逻辑门是一种逻辑功能很强的逻辑电路，任意线性可分离函数只要用一个单阈值逻辑门便可予以实现，本文讨论与分析了阈函数、对称函数的有关性质，指出了任意对称函数可以方便地用具有多阈值、多输出的阈门及异或门予以实现，文中给出了相应的综合程序． 相似文献
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《Information processing & management》2022,59(3):102914
In the era of autonomous systems, the security is indispensable module for flexible computing environment. Due to increased computer power and network speed, a new computing paradigm, such as cognitive inspired computing, will emerge. Such a paradigm provides human-centered services that are convenient and enjoyable at any time, anywhere, and on any device. On the foundation of smart city environment, human computer interaction, intelligent services, and universal device connectivity, Cyber Physical Computing for Cyber Physical systems has recently been investigated. However, in this proposal, a cognitive inspired framework for securing CPS is scrutinized. The cognitive ability is conceded to the search engines by updating the PageRank ranking methodology. The proposed framework, named SecureCPS is trained with real time collective dataset for marking the relevancy of web page with the support the facial expressions. The eye regions are marked using Focal Point Detector algorithm. The framework is validated with machine learning models and resulted in achieving 98.51% accuracy and its outperforms the existing frameworks. 相似文献
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云计算环境下数字图书馆网络与数据中心智能化管理策略研究 总被引：2，自引：0，他引：2
本文结合云计算技术特点,提出了一种新的基于云计算的数字图书馆数据中心架构体系。针对数据中心系统架构,提出了基于分布式存储和虚拟化技术的云图书馆智能化管理策略。该策略在云图书馆网络与数据中心管理中具有可用、可扩展、易管理、安全的特点,为云图书馆基础设施和云数据管理带来了低成本、高效率、安全、有效、可靠等便利。 相似文献
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Wei-Wen Wu Lawrence W. Lan Yu-Ting LeeAuthor vitae 《International Journal of Information Management》2011,31(6):556-563
Software as a Service (SaaS) is regarded as a favorable solution to enhance a modern organization's IT performance and competitiveness; however, many organizations may still be reluctant to introduce SaaS solutions mainly because of the trust concern—they may perceive more risks than benefits. This paper presumes that an organization will augment the trust of adopting SaaS solutions when perceived risks decrease and/or perceived benefits increase. To gain insights into this issue, a solution framework using a modified Decision Making Trial and Evaluation Laboratory (DEMATEL) approach is proposed. The core logic is to treat perceived benefits and perceived risks as two distinct themes so that a visible cause–effect diagram can be developed to facilitate the decision makers. A case study is conducted on a Taiwanese company—one of the world's leading manufacturers in the niche and specialized resistor markets. The findings suggest that the case company concern more about strategic-oriented benefits than economic-oriented benefits and more about subjective risks than technical risks. Some implications are addressed accordingly. 相似文献
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以智慧芽专利数据库的量子信息专利文献为数据源,基于专利计量的研究方法从时间、地域、专利申请人等多个层次进行专利数据分析,及时追踪量子信息技术发展态势,重点分析了发达国家的量子信息技术发展状况,挖掘典型机构和高价值专利。研究发现:量子信息技术正处于发展上升周期,美国是量子计算的强国,中国在量子通信稍占优势,量子保密通信、量子计算机是量子信息技术的研究热点。最后根据研究结果,提出要从国家层面做好量子信息顶层规划,加强基础研究,培养一批高水平人才,产学研融合发展,打造量子信息产业生态。 相似文献
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在信息技术飞速发展的时代,用人单位对大学毕业生的计算机应用能力要求有增无减。大学计算机信息技术这门课涉及到计算机硬件、软件、网络、多媒体、数据库等有关计算机的各个方面,知识点多,面很广,而民办大学学生存在学习主动性不高、自学能力弱、基础差等特点。本文主要针对如何在民办大学中上好大学计算机信息技术这门课进行了探讨。 相似文献
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在新一代信息技术搭建的虚拟集聚空间中,如何打破传统组织边界建立非地理临近网络关系对数字赋能型企业成长具有关键作用,揭示不同虚拟集聚型网络关系对企业成长差异化影响的内在机制具有重要意义。本文聚焦云计算企业,整合网络和制度逻辑视角探讨了虚拟集聚型网络规模、互联性、角色多样性对企业成长的影响。结果表明：虚拟集聚型网络规模促进企业成长,网络互联性与企业成长呈倒U型关系,角色多样性促进企业成长,且制度逻辑差异对网络角色多样性与企业成长的正向关系、网络互联性与企业成长的倒U型关系均具有负向调节作用。该研究结论拓展了制度逻辑理论在虚拟集聚形态中的研究范畴,对数字化时代不同背景企业如何在虚拟集聚中协作共赢具有指导意义。 相似文献
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This empirical article focuses on information seeking—related to personal development—via World Wide Web sites. In order to obtain detailed and valid data, free-form Web searches by 15 individuals were observed and videotaped. The 687 sites visited by the informants, along with their actions therein, were examined and coded. The study explores the entity focus and origin of the viewed WWW sites, as well as the tactics of moving within and between sites. Correlations between the variables are also analysed. One of the most interesting findings was that personal resources—documents within the user’s computer—are a part of the Internet, too, when they are connected to it. This observation highlights the potential importance of researching the ways in which internal and external search for information differs, and what roles local resources have. 相似文献
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Norman Mooradian 《Ethics and Information Technology》2009,11(3):163-174
James Rachels’ seminal paper “Why Privacy Is Important” (1975) remains one of the most influential statements on the topic. It offers a general theory that explains why privacy
is important in relation to mundane personal information and situations. According to the theory, privacy is important because
it allows us to selectively disclose personal information and to engage in behaviors appropriate to and necessary for creating
and maintaining diverse personal relationships. Without this control, it is implied, the diversity of relationships would
diminish; relationships would “flatten out”, we might say. The aspect of the paper that addresses information flows (what
I refer to as his information privacy theory) has been of particular interest to computer information privacy theorists. Despite
its continued importance to computer privacy theorists, however, the information privacy theory appears to be contradicted
by recent developments in computing. In particular, since the publication of Rachels’ paper we have seen an extensive amount
of personal information collected. Further, recent developments in computing falling under the heading of social computing
have brought about a new wave of personal information creation and collection. This paper will reassess and resituate Rachels’
information privacy theory in light of these developments. I will argue that the increasing collection of personal data will
not flatten relationships as the information privacy theory predicts because such data lack contextual factors important to
Rachels’ general theory. The paper will conclude by pointing to some areas where Rachels’ general theory and where his information
privacy theory will continue to be relevant. 相似文献
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Boolean logic performs a logical operation on one or more logic input and produces a single logic output. Here, we describe a microfluidic DNA computing processor performing Boolean logic operations for gene expression analysis and gene drug synthesis. Multiple cancer-related genes were used as input molecules. Their expression levels were identified by interacting with the computing related DNA strands, which were designed according to the sequences of cancer-related genes and the suicide gene. When all the expressions of the cancer-related genes fit in with the diagnostic criteria, positive diagnosis would be confirmed and then a complete suicide gene (gene drug) could be synthesized as an output molecule. Microfluidic chip was employed as an effective platform to realize the computing process by integrating multistep biochemical reactions involving hybridization, displacement, denaturalization, and ligation. By combining the specific design of the computing related molecules and the integrated functions of the microfluidics, the microfluidic DNA computing processor is able to analyze the multiple gene expressions simultaneously and realize the corresponding gene drug synthesis with simplicity and fast speed, which demonstrates the potential of this platform for DNA computing in biomedical applications. 相似文献
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云计算产业空间格局集聚模式与创新效应研究 《科学学研究》2022,40(4):619-631
云计算是国家“新基建”战略的重要支点。云计算产业空间组织机理存在自上而下政府引导和自下而上企业自组织的双重特性，政府提升产业集聚的地区政策和云计算虚拟化、网络化技术属性之间看似矛盾的关系，是引发本文探索的起点。利用2010-2016年上海市1637家云计算企业数据，描绘城市内部云计算产业空间特性，并分析不同集聚模式对企业创新的影响效应。研究发现：（1）上海云计算产业呈现中心集聚、多点联动的空间格局，随着产业链向后端延伸，企业的空间分布越向中心城区集聚。（2）云计算产业仍然具有地理性，产业链内部专业化集聚和多样化集聚对不同技术类型企业创新的影响呈现梯度变化特征。政府应审视产业链内部不同集聚模式的创新效应差异性，进一步优化产业空间布局，促进创新资源在空间上的有效配置。 相似文献