Results 121 to 130 of about 59,015 (252)

影响SF6密度控制器监控特性的因素分析

open access: yesGaoya dianqi, 2010
机械式SF6密度控制器在运行中时有误报警现象。对国内外已使用过的4类SF6密度控制器的不同结构、SF6温度、环温以及使用处海拔高度对监控特性的影响进行了分析。得出,Ⅳ型国产密度控制器质量稳定、监控精度较好;目前使用的SF6密度控制器对GCB/GIS的SF6密度具有一定的监控作用,但不能避免开关运行时出现的SF6密度示数"假高"现象,为消除密度示数"假高"、对环境温度的欠补偿和海拔影响,根本出路是开发新型智能化的SF6密度控制器。
黎斌
doaj  

Three hundred sixty‐degree prophylactic laser retinopexy versus focal laser during rhegmatogenous retinal detachment repair: A systematic review and meta‐analysis

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To compare the anatomic, functional and safety outcomes of intra‐operative 360‐degree prophylactic laser retinopexy versus focal laser retinopexy during pars plana vitrectomy (PPV) for rhegmatogenous retinal detachment (RRD) and to assess the certainty of evidence.
Luke Yaldo   +5 more
wiley   +1 more source

Prognostic Factors in Patients With Submacular Haemorrhage Complicating Age‐Related Macular Degeneration: A Post Hoc Analysis of the STAR Study

open access: yesClinical &Experimental Ophthalmology, EarlyView.
ABSTRACT Background To investigate prognostic factors of recent submacular haemorrhage (SMH) complicating neovascular age‐related macular degeneration (nAMD) treated with surgery or pneumatic displacement combined with intravitreal injection of anti‐vascular endothelial growth factor.
Pierre‐Henry Gabrielle   +8 more
wiley   +1 more source

Genetic Parameters of Methane Emission, Feed Efficiency, Feeding Behaviour, and Growth Traits in Beef Cattle

open access: yesJournal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Climate change has intensified the need to reduce greenhouse gas emissions, particularly methane (CH4) from enteric fermentation. Genetic selection has emerged as a promising mitigation strategy; however, studies on Bos taurus indicus , especially Nellore cattle, remain limited.
J. A. Silva   +10 more
wiley   +1 more source

Vitreoretinal complications and surgical outcomes in patients with X‐linked retinoschisis

open access: yesActa Ophthalmologica, Volume 104, Issue 4, Page 410-422, June 2026.
Abstract Purpose X‐linked retinoschisis (XLRS) is an inherited vitreoretinal disorder characterized by macular retinoschisis. In a subgroup of patients, peripheral retinoschisis can occur, potentially leading to complications such as vitreous haemorrhage (VH) and retinal detachment (RD).
Jonathan Hensman   +11 more
wiley   +1 more source

SF6气体综合在线监测装置

open access: yesGaoya dianqi, 2005
介绍了SF6气体检漏和含水量检测的一般方法。通过实验室模拟研究,采用传感器技术和数字电路,开发出数字式SF6气体综合在线监测装置,实现了变电站内SF6断路器GIS中SF6气体运行状态的在线监测,可减少SF6气体的排放,并有利于电网的安全稳定运行和环境保护。
王春宁
doaj  

Two‐Dimensional Reconfigurable Photodiode for In‐Sensor Color Filtering and Spectral Logic

open access: yesAdvanced Materials, Volume 38, Issue 26, 8 May 2026.
By harnessing the photodoping of different aggregates, the device exhibits wavelength‐dependent volatile‐to‐nonvolatile photoresponses that can be reconfigured via bias modulation. This enables in‐sensor color filtering and spectral‐encrypted information processing, eliminating reliance on external optical filters or post‐processing algorithms ...
Xiaokun Guo   +7 more
wiley   +1 more source

Terahertz Chiral Metamaterials Enabling Broadband Polarization Conversion Using Polarization Guiding Effect

open access: yesAdvanced Materials Technologies, Volume 11, Issue 9, 6 May 2026.
A broadband terahertz polarization rotator consisting of twistingly stacked silicon–air metagratings is designed based on the polarization guiding effect and experimentally shown to achieve 90° linear polarization rotation for both TE and TM incidences.
Yun‐Seok Choi   +4 more
wiley   +1 more source

Strategic Sustainability Assessment in the Construction Sector: A Multidimensional Index for Decision Making in Decentralised Economies

open access: yesBusiness Strategy and the Environment, Volume 35, Issue 4, Page 5879-5894, May 2026.
ABSTRACT This article evaluates the average business performance of construction firms across Spain's 17 autonomous communities within a decentralised governance framework. A regional composite sustainability index is developed, integrating economic, social and environmental intensity indicators.
Francisco José Castillo‐Díaz   +3 more
wiley   +1 more source

Sustained growth of sulfur hexafluoride emissions in China inferred from atmospheric observations

open access: yesNature Communications
Sulfur hexafluoride (SF6) is a potent greenhouse gas. Here we use long-term atmospheric observations to determine SF6 emissions from China between 2011 and 2021, which are used to evaluate the Chinese national SF6 emission inventory and to better ...
Minde An   +12 more
doaj   +1 more source

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