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由高频反射波确定上地幔不连续面的清晰度

地震地质译丛 1994年第5期16卷 39-42页

作者： H.M.Benz j.e.vidale 康瑞清

查明地球上地幔地震波不连续面的性质对了解地幔中的各种作用过程是非常重要的。特别是这些不连续面的幅度及清晰度对评价上地幔相变和化学分层模型是必要的。迄今,针对确定上地幔不连续面厚度及横向变化的地震研究,特别是对410公里深... 详细信息

查明地球上地幔地震波不连续面的性质对了解地幔中的各种作用过程是非常重要的。特别是这些不连续面的幅度及清晰度对评价上地幔相变和化学分层模型是必要的。迄今,针对确定上地幔不连续面厚度及横向变化的地震研究,特别是对410公里深处不连续面的研究,其结果是含糊不清的。本文中我们提供了用加利福尼亚700台短周期记录台阵记录的两次南美地震的信息,给出了震相为 P′P′(PKPPKP)的上地幔前兆波短周期(0.3—2.0s)

关键词：上地幔地震波不连续面清晰度高频反射波

由Hi-Net台阵成像得出的2004年苏门答腊-安达曼地震的范围、持续时间和速度

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世界地震译丛 2005年第5期36卷 1-5页

作者： M．Ishii P．M．Shearer H．Houston j.e.vidale 王飞（译）郑重（校）不详中国地震局地震预测研究所

2004年损失惨重的苏门答腊-安达曼地震是已经记录到的最大地震之一。这种地震的破坏程度取决于断层滑动的范围和大小。在苏门答腊-安达曼地震后几小时得到的最初可靠的矩震级估计（Dziewonski and Woodhouse，1983）值为9．0级，但是，... 详细信息

2004年损失惨重的苏门答腊-安达曼地震是已经记录到的最大地震之一。这种地震的破坏程度取决于断层滑动的范围和大小。在苏门答腊-安达曼地震后几小时得到的最初可靠的矩震级估计（Dziewonski and Woodhouse，1983）值为9．0级，但是，最近的长周期简正模式分析表明，

关键词：苏门答腊-安达曼地震破坏程度断层滑动反向投影法持续时间 Hi—Net台阵成像

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地球潮汐能够触发浅源逆冲断层地震

世界地震译丛 2006年第2期37卷 7-11页

作者： e．S．Cochran j.e.vidale S．Tanaka 朱大庆（译）邹本良（译）李世愚（校）不详吉林省地震局长春合隆地震台

说明了浅源逆冲断层地震的发生与最强烈潮汐的出现存在相关性。在潮汐应力作用下,地震速率以因子3随背景速率而变化。尽管摩擦系数μ在0．2和0．6之间时我们看到了好的相关性,但最高的相关性是在假定地壳的μ=0．4时发现的。我们的结果... 详细信息

说明了浅源逆冲断层地震的发生与最强烈潮汐的出现存在相关性。在潮汐应力作用下,地震速率以因子3随背景速率而变化。尽管摩擦系数μ在0．2和0．6之间时我们看到了好的相关性,但最高的相关性是在假定地壳的μ=0．4时发现的。我们的结果量化了所施加应力在地震触发上的效应,在理解地震成核与重复发生上,这是一个关键因素,地震由此被触发并接二连三地发生。

关键词：地震速率地震触发逆冲断层潮汐能地球应力作用摩擦系数地震成核地壳

地震预警:ShakeAlert在太平洋西北部的应用

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世界地震译丛 2018年第1期49卷 1-18页

作者： j.R.Hartog V.C.Kress S.D.Malone P.Bodin j.e.vidale B.W.Crowell 周昱辰(译) 张天中(校) 中国地震局工程力学研究所中国地震局地球物理研究所不详

对地震预警算法elarmS-2(地震报警系统第二版)在太平洋西北部的应用效果进行了评估。本文数据来源于美国俄勒冈州、加利福尼亚州、华盛顿州和加拿大的不列颠哥伦比亚省(这里的3州1省即本文所指太平洋西北部——译注,下同)的实时监测数... 详细信息

对地震预警算法elarmS-2(地震报警系统第二版)在太平洋西北部的应用效果进行了评估。本文数据来源于美国俄勒冈州、加利福尼亚州、华盛顿州和加拿大的不列颠哥伦比亚省(这里的3州1省即本文所指太平洋西北部——译注,下同)的实时监测数据和历史地震数据。在测试的地震中,矩震级最大的为7.2级,这也是elarmS-2算法可以精确测量的最大震级。在台网范围内,elarmS-2可以准确检测到台网内编目震级大于等于3级的地震,但是对于发生在海上或台网边缘的地震,elarmS-2能准确识别的事件的截止震级会偏高。对elarmS-2算法进行若干调整后,降低了发出错误的多重警报的概率。通过模拟历史地震事件,发现新的配置改善了发生在台网边缘的地震事件的算法的性能,而且不会影响台网密集区域的地震事件良好约束的解。我们希望误报数量减少,而且不会误报大地震事件。虽然elarmS-2假设固定的震源深度,但是震中距和震级估计值仍然是足够准确的,可以提供对震动强度的准确预测。

关键词：地震预警西北部太平洋应用不列颠哥伦比亚省历史地震数据地震事件地震报警系统

Are hydrides under high-pressure-high-temperature superconductors?

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National Science Review 2024年第7期11卷 9-12页

作者： j.e.Hirsch Department of Physics University of California

Contrary to the current consensus, I argue that the existing evidence for high-temperature superconductivity in hydrides under high pressure is not compelling. I suggest that the focus of the field should urgently shift to establish unequivocally experimentally whether or not superconductivity in pressurized hydrides exists, instead of continuing to search for new materials that might show elusive signals of unproven superconductivity at ever higher temperatures. The implications of a negative finding for the theoretical understanding of superconductivity are discussed.

关键词： Hydrides

Malargüe Site Remediation:A Successful Solution for Uranium Mill Tailings

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原子能科学技术 2024年第10期58卷 2088-2094页

作者： BARARI e DíAZ j G GIOMIA KeMPF R A National Atomic energy Commission Av.Del Libertador 8250Ciudad Autónoma de Buenos AiresC1429BNPArgentina

Comisión Nacional de energía Atómica (CNeA) has the responsibility for restoring uranium mining facilities once the operations have ***,within its environmental Program and in compliance with its legal responsibilities,decides to implement a restoration project for all sites related to the mining and processing of uranium *** Malargüe Site is located within the Province of Mendoza in the city of Malargü*** is the first site to successfully complete its *** activities consist of relocation of tailings to an engineering *** tailings management(encapsulation) and rehabilitation of the area was finished in june *** remediation alternative for the ore tailings was selected after conducting comparative studies and submitted the project to the society for *** objective of the encapsulation of the mineral tails is to isolate them from the environment,also proceeding with the decontamination and rehabilitation of the area (landscaping,post-closure monitoring and 20 years monitoring period).encapsulation consisted of the construction of a containment cell for the mine tailings,to isolate them and prevent pollutants from entering the environment through the transfer *** clean the impacted areas,the soil was removed,it was incorporated into the encapsulation,and the filling was carried out with natural soils from the *** prevents radon transfer to the environment,as ^(222)Ra is an alpha emitter with a half-life of four days,which produces its own radioactive *** progeny are solids,and when a ^(222)Ra nucleus emits an alpha particle into the air,the resulting ^(218)Po nucleus,momentarily electrically charged,adheres to any dust *** prevents the discharge into the air containing radon and also containing dust particles charged with intensely radioactive radon *** tasks mentioned make it possible to decrease radon emanation,reduce radiological risks to the public and pre

关键词： remediation radionuclide transfer tailings encapsulation solution sustainable

Annual variation of adult survival of a south-temperate House Wren population in Argentina

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Avian Research 2024年第2期15卷 229-237页

作者： Gustavo j.Fernandez Mariana e.Carro Paulo e.Llambías Grupo de Investigacion en ecofisiología de Fauna Silvestre INIBIOMA-CONICETAsentamiento Universitario San Martín de los Andes(AUSMA)Universidad Nacional Del ComahuePasaje de la Paz 235(8370)San Martín de los AndesNeuquenArgentina Grupo de Investigacion de Biología de Aves IADIZA CCT-MendozaUniversidad Nacional de CuyoAvenida RuizLeal s/n Parque General San Martin5500MendozaArgentina

Identifying factors affecting the survival of individuals is essential for understanding the evolution of life-history traits and population *** numerous studies on this subject in north-temperate environments,there is a lack of equivalent studies at similar latitudes in the ***,we used a 14-year dataset of capture,banding,and resighting to estimate the annual variation in the apparent adult survival probability of a south-temperate population of House Wrens(Troglodytes aedon bonariae).We evaluated temporal variation in sur-vival and the effect of environmental(climatic)and demographic variables(adult abundance,total number of fledglings produced during each breeding season)on survival *** found that the probability of adult survival decreased as the abundance of breeding adults *** density-dependent effect could be related to the resident lifestyle of southern House Wrens,which could determine an intense competition for territories and resources that ultimately would affect their survival.

关键词： Annual variation CjS Density-dependence Survival Troglodytes aedon bonariae

Insm1:orchestrating cellular mimicry in the thymus medulla

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Cellular & Molecular Immunology 2024年第4期21卷 414-416页

作者： K.D.james j.e.Cowan UCL Institute of Immunity and Transplantation The Pears BuildingRowland Hill StreetLondonNW32PPUK

The thymus is the primary production site for a functional and self-tolerant T-cell *** establishment of immune tolerance is mediated by the generation and presentation of tissue-restricted self-antigens(TRAs)by medullary thymic epithelial cells(mTeCs),which screen T-cell receptors for self-reactivity to eliminate autoreactive T *** studies have extended our understanding of mTeC heterogeneity by examining the mechanisms by which mTeCs mimic the peripheral self[1].

关键词： medullary eliminate restricted

Impact of device resistances in the performance of graphene‑based terahertz photodetectors

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Frontiers of Optoelectronics 2024年第2期17卷 87-97页

作者： O.Castelló Sofía M.López Baptista K.Watanabe T.Taniguchi e.Diez j.e.Velázquez-Pérez Y.M.Meziani j.M.Caridad j.A.Delgado-Notario Department of Applied Physics University of Salamanca37008 SalamancaSpain Unidad de excelencia en Luz y Materia estructurada(LUMeS) University of Salamanca37008 SalamancaSpain Research Center for electronic and Optical Materials National Institute for Materials Science1-1 NamikiTsukuba 305-0044Japan Research Center for Materials Nanoarchitectonics National Institute for Materials Science1-1 NamikiTsukuba 305-0044Japan Nanotechnology Group USAL-NanolabUniversity of Salamanca37008 SalamancaSpain

In recent years,graphene field-effect-transistors(GFeTs)have demonstrated an outstanding potential for terahertz(THz)photodetection due to their fast response and *** features are essential to enable emerging THz applications,including 6G wireless communications,quantum information,bioimaging and ***,the overall performance of these photodetectors may be utterly compromised by the impact of internal resistances presented in the device,so-called access or parasitic *** this work,we provide a detailed study of the influence of internal device resistances in the photoresponse of high-mobility dual-gate GFeT *** dual-gate architectures allow us to fine tune(decrease)the internal resistance of the device by an order of magnitude and consequently demonstrate an improved responsivity and noise-equivalent-power values of the photodetector,*** results can be well understood by a series resistance model,as shown by the excellent agreement found between the experimental data and theoretical *** findings are therefore relevant to understand and improve the overall performance of existing high-mobility graphene photodetectors.

关键词： Graphene THz Photodetector Field-effect transistor Plasmonic