Results 131 to 140 of about 79,818 (287)

Post‐Arc Transient Dielectric Recovery Characteristics of Vacuum Interrupter in the Large‐Capacity Generator Circuit Breaker

open access: yesHigh Voltage, EarlyView.
ABSTRACT Large‐capacity generator circuit breaker (GCB) based on vacuum interrupter technology is the key power equipment to ensure the safe operation of the power system. When the short‐circuit current was forced to cross zero, the large‐capacity GCB was difficult to generate a zero‐voltage environment through freewheeling, the vacuum interrupter (VI)
Xiangyu Han   +8 more
wiley   +1 more source

SF6气体红外成像检漏仪与定量检漏仪现场使用经验探讨

open access: yesGaoya dianqi, 2014
通过应用SF6红外成像检漏仪与SF6定量检漏仪进行模拟、对比试验,对SF6红外成像检漏的检测灵敏度进行量化研究,同时研究了风速、温度等外部因素对检测灵敏度的影响情况,对SF6红外成像检漏仪与SF6定量检漏仪的现场使用经验进行了有益的探索。
胡连清   +4 more
doaj  

Comparative Satellitomics in Arowanas (Telostei, Osteoglossiformes) Sheds Light on the Evolution of Ancient Satellite DNAs

open access: yesIntegrative Zoology, EarlyView.
This work focused on arowana fishes (Teleostei, Osteoglossiformes) as a model; their widespread intercontinental distribution and basal phylogenetic position within Teleostei make them a compelling model for evolutionary research, especially in the realm of satDNA molecular evolution. Through the integration of genomic and chromosomal data, we analyzed
Fernando Henrique Santos de Souza   +9 more
wiley   +1 more source

Reform of 220 kV GIS SF6 Pressure Protectio

open access: yesGong-kuang zidonghua, 2011
The paper introduced general situation of GIS SF6 pressure protection,analyzed problems of design defect and faulty start existed in GIS SF6, discussed reform necessity.Taking bus-tie switch 2245 as example, it put forward a reform scheme used PLC for ...
MENG Xiang-xi
doaj  

Modelling electron interactions: a semi-rigorous method [PDF]

open access: yes, 2006
We report total electron scattering cross sections (TCS) for SF6, SF5 CF3, and CF3I, molecules of interest to the plasma industry over the energy range from threshold to 2000 eV.
Joshipura, K. N.   +2 more
core  

Viewpoint: Optimising Cancer Treatment to Reduce Its Environmental Impact

open access: yesJournal of Medical Imaging and Radiation Oncology, EarlyView.
ABSTRACT It is widely accepted that treatment and care for patients with cancer must and should happen, as it is what everyone would want for themselves and their loved ones. Everyone wants the best possible care, but climate change and the extreme weather that it causes are increasingly affecting everyone including patients in negative ways.
Robert Chuter, Kari Tanderup
wiley   +1 more source

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

open access: yesActa Ophthalmologica, EarlyView.
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

Outcomes and complications of sponges versus tires for scleral buckling in primary rhegmatogenous retinal detachment: The Manchester Buckle Study

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To compare preoperative characteristics and postoperative anatomical and functional outcomes of scleral buckle surgery using sponges versus tires, as well as explant‐related complications and the frequency of explant removal. Methods This retrospective study included patients with primary rhegmatogenous retinal detachment (RRD) who ...
Peter Kiraly   +11 more
wiley   +1 more source

Palaeolandscape reconstruction of a shallow coastal embayment in Kattegat, Denmark—influence of sea‐level changes during the latest Pleistocene and Holocene

open access: yesBoreas, EarlyView.
We analyse the geological processes of a coastal embayment in the Kattegat. Using high‐resolution seismic data and sediment cores, we describe a geological evolution from glacial to shallow marine stages with a variety of preserved facies from different depositional settings, including glacio‐lacustrine, telmatic, limnic and coastal environments.
Katrine Juul Andresen   +8 more
wiley   +1 more source

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  

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