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《广播与电视技术》编辑部 《广播与电视技术》2006,33(6):30-31
2006年5月18日,IBM系统存储部在北京隆重举办“随需存储空间.创新掌控未来”IBM2006系统存储大会。在这次规模空前的存储盛会上,IBM系统存储部首次向业界发布IBM系统存储战略,并与中国用户分享其系统存储和信息随需应变的理念。会上有关专家还深入介绍了整合软硬件和服务的系统存储架构,以及在此基础之上的三维存储解决方案。大会气氛热烈,吸引了国内众多与信息存储技术相关的技术人员参与,充分显示出存储是整个信息产业中一个备受关注的热点,以及IBM作为存储市场领导者所具有的号召力。 相似文献
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容灾系统中存储方案选择的研究 总被引:1,自引:0,他引:1
论文首先阐述了在容灾系统中存储方案的重要性,讨论了存储方案需要考虑的衡量指标,然后介绍了主要的存储方式,根据衡量指标划分了存储方式的特性范围,最后着重研究了容灾系统中存储方案的选择流程,并使用一个实例说明容灾系统中存储方案的选择流程。 相似文献
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文章介绍了移动网管系统存储现状。简述了存储虚拟化的发展背景、概念和技术原理,给出了其分层模型,分析了存储虚拟化的三种实现方式以及各自的优缺点,指出存储虚拟化在移动网管系统中将会得到更多的部署。 相似文献
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商密云存储系统应用研究 总被引:1,自引:0,他引:1
分析了云存储及其应用面临的安全需求,提出了以商用密码和云存储技术为基础的商密云存储业务系统。系统地介绍了商密云存储业务系统的系统架构及功能设计,并通过实施高强度安全认证、数据加密存储、统一密钥管理、数据传输加密以及安全隔离等安全机制,保障用户数据在网络传输、处理、存储等全流程的安全,最后从政企客户和公众客户两个层面提出商密云存储产品的服务形态设计思路。 相似文献
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本文对南京广播电视集团电视硬盘播出系统的二级存储的总体设计要求及Isilon集群存储的关键技术等进行了分析,并详述了Isilon集群存储在南京广播电视集团电视硬盘播出系统中的应用. 相似文献
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介绍了一种高数同步存储系统的设计方案。系统使用NAND Flash构建片内存储阵列、同步管理技术和流水线的设计方案提高其存储速度。在Flash的同步模式下的读、写技术基础上,引入了片内Flash阵列管理方法,使整个Flash的存储速度有了大幅度的提高。同时针对Flash的坏块检测问题,引入了片外存储坏块地址的方法,提高了系统的坏快检测效率,保证系统的稳定性的同时,最大程度上提升了系统的性能。测试结果表明,该系统存储速度快、存储容量大、可靠性高。 相似文献
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Jean-Yves Tigli Stéphane Lavirotte Ga?tan Rey Vincent Hourdin Nicolas Ferry Christophe Vergoni Michel Riveill 《电信纪事》2012,67(7-8):313-327
Ubiquitous computing applications or widespread robots interactions execute in unforeseen environments and need to adapt to changeful available services, user needs, and variations of the environment. Context-awareness ability addresses such a need, enabling, through adaptation rules, applications to react to the perceived dynamic variations. Responses to adaptation have to be quick enough to maximize the time during which the application is coherent with its environment. Adaptation rules, associating variations of the environment to application reactions, are usually established at design time. However, in unforeseen and partially anticipated environments, we claim that adaptation rules have to be dynamically extensible to match previously unexpected variations. Our approach enables rule composition and ensures a deterministic result. We propose to use parameter adaptation to quickly respond to environmental variations and dynamic compositional adaptation to provide extensibility to the parameter adaptation. To foster even lower response times, we internalize context-awareness processing and decision into the application. 相似文献
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Two experiments examined the extent to which U.S. viewers' perceptions that Blacks face structural limitations to success, support for the death penalty, and culpability judgments could be influenced by exposure to racialized crime news. Participants were exposed to a majority of Black suspects, a majority of White suspects, unidentified suspects, and noncrime news stories. In addition, participants' prior news viewing was assessed. In Study 1, heavy news viewers exposed to unidentified perpetrators were less likely than heavy news viewers exposed to noncrime stories to perceive that Blacks face structural limitations to success. In addition, heavy news viewers exposed to unidentified perpetrators were more likely than heavy news viewers exposed to noncrime stories to support the death penalty. In Study 2, participants exposed to a majority of Black suspects were more likely than participants exposed to noncrime stories to find a subsequent race-unidentified criminal culpable for his offense. In addition, heavy news viewers were more likely to exhibit the above effect than light news viewers. The methodological and theoretical implications of these findings are discussed in light of chronic activation and the priming paradigm. 相似文献
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Technical communicators need to be prepared for the challenges of international communication. This tutorial focuses on the need for technical communication faculty to prepare students to be skilled intercultural communicators and to play a role on the translation team. The tutorial begins with a discussion of the importance of writing for translation in the international workplace and then presents specific assignments designed to instruct students in intercultural communication and give them experience writing for translation. In addition to introducing students to the cultural issues that impact the creation of documentation for international audiences, these assignments also serve to reinforce core skills recognized as vital to professional success in the field of technical communication. Taken together, these assignments can be used as the basis for a course in international technical communication. An appendix to the tutorial includes numerous resources available to faculty who want either to develop a course in international technical communication or to include some of the assignments in existing technical communication courses. 相似文献
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《Vehicular Technology, IEEE Transactions on》1976,25(4):128-141
The provision of efficient public safety services continues to be one of the high priority efforts to improve the quality of life in our nation. These efforts are too often equipment oriented without realizing the system input of providing better services in terms of benefit to the public as opposed to providers of the services. These services are multielement containing many items which can be quantified and qualitative aspects which are difficult to assess. The methodology presented herein is designed to specifically evaluate such multi-element systems in a logical manner. Its use expanded to other than emergency medical service systems will permit weak areas to be identified, develop comparisions and rank system elements as to their individual contributions to "bottom line" results, and to help establish priorities for allocation of funding resources. 相似文献
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In the Paper, we proposed a threshold mult- proxy multi-signature with share verification.In the scheme,a subset of original signers allows a designated group to proxy signers to sign on behalf of the original group, A message m has to be signed of proxy signers who can represent the proxy group. Then, the proxy signature is sent to the verifier group.A subset of verifiers in the verifier group can also represent the group to authenticate the proxy signature.In othe words,some threshold values will be given to indicate the number of persons to represent a group to authorize the signing capability or to sign a messagye or to verify the proxy signature. 相似文献
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The reduction of chemical usage in semiconductor manufacturing has been a topic of wide discussion over the past several years. The aim of this study is to optimize plasma efficiency as chemical reactions by using the Taguchi method. In short, the function of plasma is to serve as an etchant that reacts with films. The results of the reaction are discharged. The main point of optimization was to use a main etchant to increase the amount of desirable main reaction and to decrease the amount of unreacted gas in order to keep the undesirable side reaction to a minimum. We found chemical vapor deposition cleaning conditions that improve plasma efficiency up to 200%, perfluorocompounds (PFC) gas usage to one-third, and PFC gas emission to 25%. We also found nitride etching conditions that improve plasma efficiency up to 350%, SF/sub 6/ usage to 25%, SF/sub 6/ emission to 22%, and selectivity to oxide up to 145% over the previous conditions. 相似文献
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Tan B.C.Y. Smith H.J. Keil M. Montealegre R. 《Engineering Management, IEEE Transactions on》2003,50(1):64-77
The reluctance of people to report bad news can be a major contributor to the phenomenon of runaway software projects. If senior managers receive bad news sooner, they may be able to prevent runaway software projects through corrective action. Two factors that are known to impact predisposition to report bad news are organizational climate (whether reporting bad news is likely to result in reward or punishment) and information asymmetry (whether hiding bad news is likely to be possible over time). Using matching experiments in an individualistic (United States) and a collectivistic culture (Singapore), this study investigates how the individualism-collectivism dimension of national culture may moderate the impact of organizational climate and information asymmetry on human predisposition to report bad news. The results revealed that individualism appeared to amplify the impact of organizational climate on predisposition to report bad news (compared to collectivism) whereas collectivism appeared to amplify the impact of information asymmetry on predisposition to report bad news (compared to individualism). When deciding on whether to report bad news about software projects, people from an individualistic culture seemed to be more sensitive to organizational climate whereas people from a collectivistic culture seemed to pay greater attention to information asymmetry. These results have useful implications for practice and research involving cross-cultural software project teams. Beyond these implications, these results add a cultural dimension to our existing knowledge on software project management. 相似文献
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介绍一种多可重复使用的智能机票的设计方案,利用目前成熟的RFID技术并结合GPS技术,为乘客提供一种在任何国家的机场,在语言不通的情况下,也能通过具有AGPS功能的手持设备读取存储在机票中的RFID芯片的内容,并将内容以二维电子地图的方式显示在设备上,并且利用机场GPS导航服务引导顾客到达他们想去的地方,这样不但可以使航空公司节省成本、提供高质量的机场服务而且可以解决机场分流问题,减少误机事件,提高经济效益。 相似文献
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Mobile ad-hoc networks require nodes to cooperate in the relaying of data from source to destination. However, due to their limited resources, selfish nodes may be unwilling to forward packets, which can deteriorate the multi-hop connectivity. Different reputation-based protocols have been proposed to cope with selfishness in mobile ad-hoc networks. These protocols utilize the watchdog detection mechanism to observe the correct relaying of packets, and to compile information about potential selfish nodes. This information is used to prevent the participation of selfish nodes in the establishment of multi-hop routes. Despite its wide use, watchdog tends to overestimate the selfish behavior of nodes due to the effects of radio transmission errors or packet collisions that can be mistaken for intentional packet drops. As a result, the availability of valid multi-hop routes is reduced, and the overall performance deteriorates. This paper proposes and evaluates three detection techniques that improve the ability of selfishness prevention protocols to detect selfish nodes and to increase the number of valid routes. 相似文献