Results 21 to 30 of about 12,931 (165)
Research and Design of “E-Tax” System Security Defense Architecture Based on Classified Protection [PDF]
, 2015 随着我国社会信息化进程的加快，税务信息化建设也在同步深入推进。目前各省税务系统基本上已经建成了省级集中模式的网上办税系统，网上办税系统的建立对优化纳税服务、提升纳税人满意度、提高税务机关管理和工作效率以及提升税务机关公信力和形象等方面都起到了非常积极的作用。但是目前省级集中的网上办税系统缺乏地方特色及个性化需求的支持，已不能满足纳税人日益增长的纳税服务需求。因此，为了进一步优化纳税服务，切实解决纳税人的困难，同时响应市委市政府信息化建设互联网+发展战略以及智慧城市发展规划号召，某市国税系统自行开发设计了“
徐南
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT MCrAlX coatings are widely used as bond coats in thermal barrier coating systems to protect turbine blades from high‐temperature oxidation. However, their oxidation resistance is often restricted by uncontrolled microstructures, surface roughness, and aggregation of reactive elements (REs). In this study, high‐repetition‐rate femtosecond laser
Wei Qian +7 more
wiley +1 more source
Preparation and Magnetic Properties of NFC Ferrite sheets with High Permeability and Low Magnetic Loss Via Aqueous Tape Casting [PDF]
, 2015 近距离无线通讯（NFC）技术在最近几年发展迅速，与移动设备尤其是与手机的结合，将会极大地促进NFC技术的发展。移动设备上NFC功能的顺利实现，需要解决的硬件问题是制备一种高磁导率、低损耗的烧结铁氧体片。本论文采用固相反应法制备预烧铁氧体粉末，通过水基流延成型工艺制备铁氧体坯片，研究工艺条件、助熔剂及D离子对铁氧体片的烧结密度、微观形貌和磁学性能等的影响。通过工艺、成分和成型工艺的组合调整，制备出满足NFC功能使用的高磁导率、低磁损耗、高截止频率、厚度较薄且具有较好磁导率温度稳定性的烧结铁氧体膜片。 首先，
马腾
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Functional Ecology, Volume 40, Issue 3, Page 636-654, March 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract The nested subset pattern (nestedness) has been widely used to explain species distributions in island and fragmented systems. Mountain sky islands serve as critical natural laboratories for understanding the evolutionary consequences of geographic isolation and climate
Caiwen Zhang +5 more
wiley +1 more source
塔里木沙漠公路防护林土壤微生物生物量与土壤环境因子的关系 [PDF]
, 2009 为探讨极端干旱区风沙土土壤微生物与土壤环境因子的作用规律,采用相关分析法研究了塔里木沙漠公路防护林地土壤微生物生物量与理化因子和酶活性的关系.结果表明:土壤容重和粒径减小(R0.85)时,防护林地中土壤微生物数量和生物量有增大趋势,由容重与微生物量的相关性主导;土壤养分含量与土壤微生物数量和生物量呈正相关,主要由速效养分和放线菌、微生物生物量C、P的相关性所致;土壤酶活性与土壤微生物数量和生物量的相关性差异较大,R在0.51～0.91,主要取决于蔗糖酶、磷酸酶与放线菌、微生物量C的相关 ...
周宏伟 +7 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT The development of high‐performance electromagnetic protection materials integrating broadband absorption and effective shielding capabilities is hindered by challenges in simultaneously optimizing multiple electromagnetic properties through conventional material designs.
Changlong Du +9 more
wiley +1 more source
Research on Key Technologies of Data Security towards Cloud Computing [PDF]
, 2015 近十年来，云计算成为当今世界信息领域的热门研究课题之一，也逐渐成为学术界、产业界最为关注的技术焦点。云计算提出的全新的服务方式变革和数据共享模式的变革，以其经济、高效、扩展性强的优点为互联网经济和全球的IT产业的发展注入了强大的动力，指引IT领域向专业化、规模化、集约化的趋势发展，是大型计算机从客户端-服务器端大转变之后的又一次巨变。 但从另一方面考虑,云计算所涉及到的信息安全问题也逐渐显现出来，成为其发展和普及过程中的“绊脚石”，如何为用户在云端存储的数据提供全方位的安全防护是目前亟待解决的问题 ...
章路
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang +4 more
wiley +1 more source
Weaving knowledges to support wildlife health surveillance in Kenya's pastoral rangelands
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract In wildlife–livestock–human interfaces, pathogens capable of spreading between wild and domestic animals and humans have important implications for conservation outcomes, economics, and public health. Robust wildlife health surveillance can help address these risks.
Brock Bersaglio +4 more
wiley +1 more source
The Application Research of Attached Self-lifting Scaffold in Project [PDF]
, 2015 附着升降脚手架作为高层、超高层建筑的外防护架体及施工架体，该架体因其在施工中具有良好的优越性能，近十年来正逐步取代传统的悬挑式钢管脚手架。该架体施工技术同时也得到国家建设部的大力推广，目前在全国的高层、超高层建筑工程中正被广泛地使用，并有逐年增加的趋势。本文主要通过以下三大部分内容对附着升降脚手架在工程施工全过程的应用进行具体的研究： （一）对附着升降脚手架的背景、发展、使用情况全面介绍，明确研究的目的和意义，确定研究的方法及研究内容。 （二）阐述附着升降脚手架的施工原理及相关使用规定，并就施工质量 ...
吴其敬
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