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11—201改进的旋转电机绝缘状态评议

国外大电机 1991年第1期 46-52,64页

作者： stone,gc 邹淑英

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发电机定子绕组绝缘热循环型式试验

国外大电机 1992年第6期 46-52页

作者： stone,gc 包凤英

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发电机转子绕组维护性高电压试验水平研究

国外大电机 2013年第4期 14-17页

作者： gc.stone 郑伟加拿大

工厂试验或者交接试验中，高电压试验通常用来确认新的定子绕组和转子绕组的对地绝缘是否适于运行。一些电动机和发电机所有者定期使用维护性高电压试验来确定绕组绝缘在重新投人运行时是否会失效。IEEE／ANSI和IEC委员会已经制定了工... 详细信息

工厂试验或者交接试验中，高电压试验通常用来确认新的定子绕组和转子绕组的对地绝缘是否适于运行。一些电动机和发电机所有者定期使用维护性高电压试验来确定绕组绝缘在重新投人运行时是否会失效。IEEE／ANSI和IEC委员会已经制定了工厂试验和交接试验中的直流和交流高电压试验水平。一些标准提供了定子绕组维护性高电压试验的导则。然而，还没有建立转子绕组维护性高电压试验的导则。本文论述了适用于发电机转子绕组高电压试验的标准并强调IEEE缺少关于发电机转子运行后试验水平的导则。由于维护性高电压试验的重要目的是确保绝缘可以耐受运行中的暂态电压，因此对转子对地绝缘承受的暂态电压应力进行分析。基于可能存在的暂态过程，提出大型电机转子绕组维护交流高电压水平为最少1000V（有效值）或者最后的验收试验电压的一半（以更高者为准）：

关键词：转子绕组高电压维护汽轮发电机

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水轮发电机局部放电分析仪试验理论

国外大电机 1994年第3期 5-7页

作者： stone,gc 刘万景

本文介绍了依据测量局部放电脉冲来确定水轮发电机定子绕组绝缘状况的方法，涉及到测量系统的组成，传感器的安装，测量过程以及这种测量方法的优、缺点。

关键词：水轮发电机定子绕组局部放电

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用局部放电试验结果评估定子绕组状态的进步

国外大电机 2005年第2期 33-35页

作者： gc．stone[加拿大] 邹淑英（译）关玉薇（校）

用在线局部放电（PD）试验帮助维护人员监测电动机定子绕组绝缘问题已有数十年了。尤其是，该试验能够发现松动、过热和污染了的绕组，早在这些问题导致故障之前就能发现。因此，在线PD试验已经成为用来计划维护电动机的重要手段。该试... 详细信息

用在线局部放电（PD）试验帮助维护人员监测电动机定子绕组绝缘问题已有数十年了。尤其是，该试验能够发现松动、过热和污染了的绕组，早在这些问题导致故障之前就能发现。因此，在线PD试验已经成为用来计划维护电动机的重要手段。该试验还能用来确认修理工作的效果。通过在线PD试验的广泛应用，在过去十年中积累了包括43000多个试验结果的数据库。本文介绍该数据库的PD结果的统计分析，并指出，局部放电传感器的电压等级和型式对解释试验结果是至关重要的，而绝缘类型和绕组年限不是太重要。PD的临界值，它表示电动机绕组极有可能存在严重问题。因此将试验结果与数据库进行比较能够大致评估定子绕组绝缘状况，不必等到几年形成趋势。

关键词：电动机定子绕组绝缘局部放电试验

TMEM63B regulates postnatal development of cochlear sensory epithelia via thyroid hormone signaling

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Journal of Genetics and Genomics 2024年第6期51卷 673-676页

作者： Chang Ye Tian-Zi Zhang Yan-Yu Zang Yun stone Shi Guoqiang Wan State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animal for Disease Study Model Animal Research CenterMedical SchoolNanjing UniversityNanjingJiangsu 210032China Guangdong Institute of Intelligence Science and Technology ZhuhaiGuangdong 519031China

Sound transmission occurs in the cochlea,a complex and ingenious subdivision in the inner *** structure of the cochlea develops structurally and functionally by the time before two postnatal weeks(the time of hearing onset)in mice(Geal-Dor et al.,1993).Greater epithelial ridge(GER,also known as Kolliker's organ)is a transient cochlear structure containing a group of columnar epithelial supporting cells surrounding the inner hair cells(IHCs).

关键词： cochlear al. supporting

Modelling the unexpected dynamics of COVID-19 in Manaus,Brazil

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Infectious Disease Modelling 2024年第2期9卷 557-568页

作者： Daihai He Yael Artzy-Randrup Salihu S.Musa Tiago Gräf Felipe Naveca Lewi stone Department of Applied Mathematics Hong Kong Polytechnic UniversityHong Kong SARChina Department of Theoretical and Computational Ecology IBEDUniversity of AmsterdamAmsterdamNetherlands Department of Genomics and Computational Biology University of Massachusetts Chan Medical SchoolWorcesterMA01605USA Department of Mathematics Aliko Dangote University of Science and TechnologyKanoNigeria Instituto Gonçalo Moniz FiocruzSalvadorBahiaBrazil Instituto Leônidas e Maria Deane FiocruzManausBrazil Mathematical Sciences School of ScienceRMIT UniversityMelbourneAustralia Biomathematics Unit School of ZoologyFaculty of Life SciencesTel Aviv UniversityTel AvivIsrael

In late March 2020,SARS-CoV-2 arrived in Manaus,Brazil,and rapidly developed into a large-scale epidemic that collapsed the local health system and resulted in extreme death *** key studies reported that∼76%of residents of Manaus were infected(attack rate AR≃76%)by October 2020,suggesting protective herd immunity had been *** this,an unexpected second wave of COVID-19 struck again in November and proved to be larger than the first,creating a catastrophe for the unprepared *** has been suggested that this could be possible if the second wave was driven by ***,it is widely reported that reinfections were at a low rate(before the emergence of Omicron),and reinfections tend to be ***,we use novel methods to model the epidemic from mortality data without considering reinfection-caused deaths and evaluate the impact of interventions to explain why the second wave *** method fits a“flexible”reproductive numberR_(0)(t)that changes over the epidemic,and it is demonstrated that the method can successfully reconstruct R_(0)(t)from simulated *** Manaus,the method finds AR≃34%by October 2020 for the first wave,which is far less than required for herd immunity yet in-line with seroprevalence *** work is complemented by a two-strain *** genomic data,the model estimates transmissibility of the new P.1 virus lineage as 1.9 times higher than that of the ***,an age class model variant that considers the high mortality rates of older adults show very similar *** models thus provide a reasonable explanation for the two-wave dynamics in Manaus without the need to rely on large reinfection rates,which until now have only been found in negligible to moderate numbers in recent surveillance efforts.

关键词： Modelling COVID-19 Reproduction number Herd immunity Reinfection

A spotlight on dosage and subject selection for effective neuroprotection: exploring the central role of mitochondria

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Neural Regeneration Research 2025年第4期20卷 1081-1082页

作者： John Mitrofanis Jonathan stone Michael R.Hamblin Pierre Magistretti Alim-Louis Benabid Glen Jeffery Fonds Clinatec UniversitéGrenoble AlpesGrenobleFrance School of Medical Science University of SydneySydneyAustralia Faculty of Health Sciences University of JohannesburgJohannesburgSouth Africa King Abdullah University of Science and Technology ThuwalSaudi Arabia Institute of Ophthalmology University College LondonLondonUK

Neurons are notoriously vulnerable cell *** the slightest change in their internal and/or external environments will cause much distress and dysfunction,leading often to their death.A range of pathological conditions,including stroke,head trauma,and neurodegenerative disease,can generate stress in neurons,affecting their survival and proper *** most neural pathologies,mitochondria become dysfunctional and this plays a pivotal role in the process of cell *** challenge over the last few decades has been to develop effective interventions that improve neuronal homeostasis under pathological *** interventions,often referred to as disease-modifying or neuroprotective,have,however,proved frustratingly elusive,at both preclinical and,in particular,clinical *** this perspective,we highlight two factors that we feel are key to the development of effective neuroprotective *** are:firstly,the choice of dose of intervention and method of application,and secondly,the selection of subjects,whether they be patients or the animal model.

关键词： protective dosage distress

Storylines of family medicine Ⅰ:framing family medicine–history,values and perspectives

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Family Medicine and Community Health 2024年第S3期12卷 2-11页

作者： William B Ventres Leslie A stone Kathleen T Rowland Richard H Streiffer Michael D Macechko Julia A Roulier Jeffrey M Borkan Larry A Green Family and Preventive Medicine University of Arkansas for Medical Sciences College of MedicineLittle RockArkansasUSA Family and Preventive Medicine Rush Medical College of Rush UniversityChicagoIllinoisUSA College of Community Health Sciences University of AlabamaTuscaloosaAlabamaUSA UAMS Northwest Regional Campus Family Medicine Residency Program FayettevilleArkansasUSA UAMS North Central Regional Campus Family Medicine Residency Program BatesvilleArkansasUSA Family Medicine Brown University Warren Alpert Medical SchoolProvidenceRhode IslandUSA University of Colorado School of Medicine AuroraColoradoUSA

Storylines of Family Medicine is a 12-part series of thematically linked mini-essays with accompanying illustrations that explore the many dimensions of family medicine,as interpreted by individual family physicians and medical educators in the USA and elsewhere around the ***‘Ⅰ:framing family medicine—history,values,and perspectives’,the authors address the following themes:‘Notes on Storylines of Family Medicine’,‘Family medicine—the generalist specialty’,‘Family medicine’s achievements—a glass half full assessment’,‘Family medicine’s next 50 years—toward filling our glasses’,‘Four enduring truths of family medicine’,‘Names matter’,‘Family medicine at its core’and‘The ecology of medical care.’May readers find much food for thought in these essays.

关键词： glasses illustration Notes