Results 31 to 40 of about 24,422 (178)
Page write-related scheme for flash translation layer [PDF]
, 2013 Most existing flash translation layer (FTL) schemes such as block associative sector translation (BAST) and fully associative sector translation (FAST) increase garbage collection overhead and degrade the performance of solid-state drive (SSD).
Fu-rui ZHAN +4 more
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Comprehensive framework for assessing and optimizing existing research networks
Conservation Biology, EarlyView.Abstract Conservation, monitoring, and research networks, or collections of ecological research sites unified under a common mission of data collection or a research mission, are essential infrastructure for understanding large landscapes. However, most networks developed opportunistically over decades rather than through systematic design, creating ...
Alyson East +2 more
wiley +1 more source
Guangtongxin yanjiu, 2014 针对利用阶跃响应法测试光电探测元件频率响应时存在无法获得相频特性的问题,文章通过Multisim软件建立了与实际器件参数一致的等效电路,根据相频特性中相位差与时间差之间的关系,提出了一种同时测量幅频特性和相频特性的频率响应测量方法,仿真测量的幅频特性结果与传统阶跃响应法的测量结果一致。光电二极管的相频特性对高速接收系统的设计具有重要影响。
李子强, 吕辉, 杨涛
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Synthesis of Ⅱ-Ⅵ(ZnO,CdSe) nanostructured materials and its application as photodetector [PDF]
, 2015 本文的研究内容主要分为两个部分：一ZnO纳米材料的制备及其在光电探测领域内的应用；二基于CdSe材料的光电导探测器的研制。 PartAZnO纳米材料的制备及其在光电探测领域内的应用 本部分的研究工作与成果如下： 一:研究不同激光能量密度的248nm脉冲激光对ZnO材料的影响，发现随着能量密度的增加，制备的ZnO薄膜材料的结构发生变化，当能量密度达到2.5J/cm2时，ZnO薄膜变成纳米片结构材料，其原因可能是来自高能量密度激光产生的非线性效应。 二 ...
徐强
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Conservation Biology, EarlyView.Abstract Recognition and engagement of Indigenous Peoples and local communities (IP&LCs) and other traditional knowledge (TK) holders in formal biodiversity governance remain limited, despite their significant contribution to the conservation and sustainable use of biodiversity through their knowledge, innovations, practices, and land stewardship.
Kinga Öllerer +8 more
wiley +1 more source
Design and Implementation of the Base Station Software Based on Middleware [PDF]
, 2016 摘要 随着计算机技术的不断发展，目前通信软件的规模和复杂性日益增大，同样面临着应用环境动态多变、业务间耦合性、可靠性和高效性等挑战。而基站软件系统所应用的消息中间件的局限性和所存在的缺陷不能够很好的解决这些挑战。对象中间件技术是面向对象技术和分布式计算所结合的产物，也是基站系统软件向面向对象建模演进需要应用的主流技术。 本文主要阐述如何使用对象中间件技术进行基站软件系统对象建模，实现基站系统业务解耦、代码优化、可扩充性和高可靠性等要求。以基站软件平台应用对象管理框架项目为实例 ...
陈静
core
Analysis of service extensible capability for extensible network service model [PDF]
, 2019 The capability of providing network service extensibility is the major demand of next generation network,it is also the main challenge of network service model technology.The extensible network service model was proposed in response to the demand of ...
Delin DING +3 more
core +1 more source
Effects of political identity activation and inaccurate metaperceptions on attitudes toward wolves
Conservation Biology, EarlyView.Abstract Polarization between groups can undermine durable conservation outcomes. Activating group identities (i.e., an individual's sense of self derived from membership in a group) can exacerbate differences, especially when people hold inaccurate perceptions of their peers and rivals.
Alexander L. Metcalf, Justin W. Angle
wiley +1 more source
Shuitu Baochi Xuebao, 2003 塔里木河下游是我国西部生态与环境问题最为突出的地区.由于人类不合理的资源开发,导致该地区生态问题日益突出.本文结合塔里木河下游5次生态输水,通过3年对输水后生态环境变化的监测,就塔里木河下游生态环境对输水的积极响应进行了分析.结果显示:(1)生态输水后地下水位在时间上和空间上各有其变化规律,在时间上近河道水位响应快,远河道水位响应慢.在空间上距河道不同距离和不同河段上地下水上升的幅度不同.(2)输水后天然植被的响应主要表现在植被种类和植被盖度的增加上;(3)鉴于输水后生态响应的范围仍然较小 ...
徐海量 +3 more
doaj +2 more sources
Gaoya dianqi, 2017 柔性直流输电对直流互感器的延时时间及阶跃响应上升时间均有较高要求,针对即将建设的张北柔性直流输电工程的应用需求,研制了一种柔性直流输电用±500 kV直流全光纤电流互感器。直流全光纤电流互感器采用Faraday磁光效应原理,采用光纤作为传感介质。文中介绍了直流全光纤电流互感器的原理及构成,对全光纤电流互感器的线性双折射抑制技术、玻片温度自补偿技术及抗振技术等关键技术进行了深入分析,并给出了样机的主要性能测试情况。测试表明,文中研制的柔性直流输电用直流全光纤电流互感器测量精度为0.2级,延时时间25μs ...
罗苏南 +4 more
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