Results 81 to 90 of about 37,303 (155)
Gaoya dianqi不同厂家252 kV GIS之间的扩建对接已成为变电站扩建的一个发展方向。为保证不同厂家设备的精确对接，文中总结了常见的扩建对接类型和实例，以常见的共箱母线对接类型为分析对象，提出通过结构尺寸及关键参数设计、电气性能分析、机械性能分析、厂内结构检测和出厂试验等方法进行扩建接口的设计、验证与校核。基于前期设备接口的尺寸及关键参数，文中提出了接口壳体和导体件的计算方法、以三维软件仿真为主的装配效果验证方法、以软件分析为主的电气绝缘性能分析方法和机械性能分析方法，形成了全面的扩建接口设计分析方法 ...
柳如见 +5 more
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Guangtongxin yanjiu, 2005 文章对动态业务模型下的稀疏波长变换网络性能进行了分析与研究,对波分复用（WDM）网络中引入波长变换器后的网络性能进行了系统的仿真,分析了波长变换器数量、波长变换器位置、波长变换范围以及路由波长算法等因素对网络性能的影响。
李培源, 吕薇, 顾畹仪, 周锡增
doaj
Policy Studies Journal, Volume 54, Issue 3, August 2026.ABSTRACT As the Narrative Policy Framework (NPF) begins to unpack issues of power and narratives, the main focus has been on power‐over and domination rather than more transformative notions of power‐to and empowerment. This article draws on insights from gender and policy studies and suggests that the NPF benefits from adopting a multifaceted notion ...
Hilda Broqvist
wiley +1 more source
四川大学学报. 自然科学版, 2008 针对CDMA下行链路仅知道目标用户自身扩频码这一情形,通过仿真实验对恒模、最小输出能量、递归最小二乘、Kalman滤波以及基于独立分量分析这几种线性和非线性盲多用户检测算法的误码率和信干比进行了性能比较和讨论.实验证明,基于独立分量分析的盲多用户检测算法具有较好的性能.为对算法工程实现提供具体的参考,本文对各算法的计算复杂度进行了分析.
任燕, 何培宇, 段文峰
doaj
People and Nature, Volume 8, Issue 7, Page 2338-2352, July 2026.Abstract Urbanisation is reshaping how people experience wildlife, reducing our shared spaces with local biodiversity. Fewer opportunities for human–wildlife interactions weaken our emotional attachments to nature and precipitate a loss of species knowledge and familiarity.
Sam S. S. Lau +3 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2015 宝石能谱CT可以实现物质分离和定量分析,并将CT检查由原本的单参数成像、混合能量成像分别转变为多参数成像和单能量成像的能谱成像,对胰腺囊性肿瘤良恶性的鉴别有更高价值。胰腺囊性肿瘤为少见肿瘤,本文回顾性分析近期经我院手术病理确诊的23例胰腺囊性肿瘤患者,探讨其宝石能谱CT表现特点和诊断价值。1资料和方法1.1样本来源收集吉林大学第一院2012年7月 ...
宗子健 +3 more
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Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT In electrocatalysis, traditional single‐atom catalysts (SACs) face challenges in achieving coordinated control of reaction pathways due to limitations such as single local energy levels and carrier recombination. By introducing an additional defect structure, it is possible to break the electronic structure symmetry, thereby activating SACs ...
Juanjuan Huo +8 more
wiley +1 more source
Mechanoluminescent Mixed‐Anion Borate Sr2B5O9Cl:Eu for Dynamic Anticounterfeiting
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Mechanoluminescence (ML)—the emission of light in response to mechanical stimuli—offers a direct and visually intuitive route for transducing mechanical information into optical signals. Herein, we report a mixed‐anion strategy to prepare mixed‐anion borate Sr2B5O9Cl:Eu phosphors through a facile, low‐temperature, and ambient‐atmosphere solid ...
Yuhong Han +7 more
wiley +1 more source
Gongye shui chuli, 2015 以衣康酸、丙烯磺酸钠、马来酸为单体,采用微波辐射法合成了IA-MA-SAS三元共聚物。分别利用热重、透光率测试、静态阻垢法和电导法测定分析了其热稳定性、分散氧化铁性能和阻垢性能。通过扫描电镜和X衍射观察分析沉积物形貌,探讨了阻垢机理。结果表明:IA-MA-SAS具有良好的阻垢性能、热稳定性和分散氧化铁性能;其阻垢机理主要有晶格畸变、螯合和分散作用;与聚天冬氨酸有很好的协同效应,阻垢率可达95%以上。
董社英, 张黎黎, 钮丽, 黄廷林
doaj
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Biodegradable Zn‐based alloys are promising candidates for temporary implants, yet excessive Zn2+ release during degradation may induce cytotoxicity and adverse tissue responses. In this study, Zn‐xBa alloys (x = 0.1 wt%, 0.5 wt%, 1.0 wt% and 3.0 wt%) were developed to achieve controlled corrosion behaviors with improved biocompatibility.
Liu‐Dang Fang +9 more
wiley +1 more source