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38731.基于SOA的高校档案资源管理系统研究与实现
[信息传输、软件和信息技术服务业,计算机、通信和其他电子设备制造业] [2013-12-20]
对当前档案资源管理系统需要解决的主要问题进行分析,从系统、业务、功能、流程等需求分析入手,对系统集成和数据整合等方面进行研究,运用SOA架构,采用MVC模式开发,研究实现了一种集成化的高校档案资源管理系统,以适应大数据时代的档案工作。
关键词:SOA;;MVC;;档案管理;;系统集成;;权限控制
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38732.WPS表格在工程管理中的应用
[信息传输、软件和信息技术服务业,计算机、通信和其他电子设备制造业] [2013-12-20]
在工程管理工作中,针对横道图修改工作量较大的特点,结合WPS表格应用技巧,制作横道图,提高工作效率。
关键词:WPS;;横道图
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38733.城轨无线传感器监测网络模型的构建与研究
[信息传输、软件和信息技术服务业,计算机、通信和其他电子设备制造业] [2013-12-20]
本文介绍了无线传感器网络的覆盖控制问题,针对理想状态下的模型不能满足实际城轨应用的需求,提出了无线传感器网络信道衰落在不确定情况下的室外信道模型。根据无线信道衰落模型的理论分析,得到信道衰落模型的各个参数,确定无线传感器网络室外信道模型。证明该衰落模型在实际网络的节点部署和节点定位中的作用优于其他无线信道衰落模型,在保证通信的情况下提高了节点覆盖率。
关键词:无线传感器网络;;信号衰减;;覆盖优化;;城市轨道交通
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38734.爱立信与CANAL+OVERSEAS签署多年期广播服务协议
[计算机、通信和其他电子设备制造业,信息传输、软件和信息技术服务业] [2013-12-20]
爱立信与CANAL+OVERSEAS签署五年期广播服务协议,管理Canal+Overseas 22个频道内容的播放与接收借助该协议,Canal+Overseas可提高运营效率,并为客户提供更具吸引力的服务凭借此次合作,爱立信强化了在广播服务领域的地位爱立信致日前与Canal+Overseas签署五年期广播服务协议。根据协议,爱立信将提供一系列的广播服务技术支持服务,包括Canal+Overseas 22个频道的接收、技术制作、后期制作和播放,其中有14个频道将定期提供直播节目。Canal+Overseas是Canal+集团旗下子公司,拥有法国海外领土和非洲地区的
关键词:广播服务;CANAL+OVERSEAS;海外领土;直播节目;后期制作;非洲地区;创新应用;技术支持服务;电视节目;伙伴关系;
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38735.为实现热辅助磁记录的光学天线的电磁逆设计
[计算机、通信和其他电子设备制造业] [2013-12-18]
An Inverse Electromagnetic Design algorithm is presented that can efficiently solve for optimal shapes of electromagnetic devices, such as antennas, surface textures and gratings. The algorithm was implemented in software along with techniques to represent non-parametric or freeform shapes, which allow the optimization to explore non-intuitive solutions. This Inverse Design Software was then used to design optical antennas for Heat-Assisted Magnetic Recording to efficiently deliver energy to a sub-wavelength spot. The optical system that is proposed here consists merely of a rectangular waveguide and a planar antenna, a simple and inexpensive solution that outperforms the complicated designs from the key players in the data storage industry.
关键词:热辅助磁记录;光学天线;电磁逆设计
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38736.为亚波长厚的太阳能电池进行的陷光结构的电磁逆设计
[计算机、通信和其他电子设备制造业] [2013-12-18]
Light trapping in solar cells allows for increased eciency and reduced materials cost. It is well known that a 4n2 factor of enhancement in absorption can be achieved by randomly texturing the surface of the solar cell, where n is the refractive index of the material. However, this limit only holds when the thickness of the solar cell is much greater than the wavelength of light. In the subwavelength regime, the fundamental question remains unanswered: what surface texture realizes the optimal absorption enhancement? We turn to computational inverse electromagnetic design in order to nd nanoscale textures for light trapping, and observe spontaneous symmetry breaking in the creation of optimal design.
关键词:太阳能电池;电磁逆设计;陷光结构
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38737.无线感测网络中的流动性
[计算机、通信和其他电子设备制造业] [2013-12-18]
The combination of mobility with wireless networks greatly expands the application space of both robots and distributed sensor networks; such a pervasive system can enable seamless integration between the digital and physical worlds. However, there are a number of issues in both robotic and wireless sensor network (WSN) fields that demand research, and their integration generates further challenges.
关键词:无线感测网络;流动性
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38738.电子行业:从创新产品和制造升级双维度寻找电子行业投资机会-2014年年度投资策略
[信息传输、软件和信息技术服务业,计算机、通信和其他电子设备制造业] [2013-12-18]
硬件创新和软件创新走向融合。中国电子产业地位正在快速提升。从产品创新和制造升级两位维度选择投资机会。1)从产品创新的角度,前瞻性布局可穿戴和移动支付领域;2)从产业升级的角度,重点布局享受工程商红利的安防产业,核心零部件获得突破的光学膜、玻璃基板产业;3)从行业周期的角度,布局LED 和半导体产业。
关键词:硬件创新;软件创新;中国电子产业;产品创新;制造升级
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38739.带带隧穿晶体管:可扩展性和电路的性能
[计算机、通信和其他电子设备制造业] [2013-12-18]
Continuing scaling of transistors as density approaches the terascale regime (1012 devices/cm2) requires evaluating new devices that can perform on several metrics beyond density scaling, such as cost savings, performance improvements, and energy efficiency. A comprehensive review and evaluation of potential new devices is performed. Metrics such as processing cost, plan-view area scaling, and stage delay are benchmarked. One of the most promising devices, tunneling field effect transistors, is also the most confounding, as simulation and experimental results are orders of magnitude apart.
关键词:隧穿晶体管;可扩展性;电路性能
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38740.对伯克利的传感器及执行器中心的剖析(BSAC)
[计算机、通信和其他电子设备制造业] [2013-12-18]
The Berkeley Sensor & Actuator Center at the University of California Berkeley has, for more than twenty‐five years, had a major impact on the research foundations and consequent commercialization of MEMS and NEMS. This has been achieved through creative combinations of resources, incentives, and shared goals involving Academia, Industry, and Government. The strongly multidisciplinary and interdisciplinary operational model of BSAC (a National Science Foundation Industry/University Cooperative Research Center) is described.
关键词:伯克利;传感器;执行器中心