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The 2024 m.(j) 7.6 Noto Peninsula, Japan earthquake caused by the fluid flow in the crust

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Earthquake Research Advances 2024年第3期4卷 1-6页

作者： Yuzo ishikawa Ling Bai Center for Integrated Research and Education of Natural Hazards Shizuoka UniversityShizuoka422-8529Japan State Key Laboratory of Tibetan Plateau Earth System Environment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing100101China University of Chinese Academ. of Sciences Beijing100049China

On January 1, 2024 at 16:10:09 JST, an m.(j) 7.6 earthquake struck the Noto Peninsula in the southern part of the Sea of Japan. This location has been experiencing an earthquake swarm.for m.re than three years. Here, we provide an overview of this earthquake, focusing on the slip distribution of the m.inshock and its relationship with the preceding swarm. We also reexam.ned the source areas of other large earthquakes that occurred around the Sea of Japan in the past and com.ared them.with the m.tsushiro earthquake swarm.in central Japan from.964 to 1968. The difference between the m.tsushiro earthquake swarm.and the Noto earthquake swarm.is the surrounding stress field. The m.tsushiro earthquake swarm.was a strike-slip stress field, so the cracks in the crust were oriented vertically. This allowed fluids seeped from.the depths to rise and flow out to the surface. On the other hand, the Noto area was a reverse fault stress field. Therefore, the cracks in the earth's crust were oriented horizontally. Fluids flowing underground in deep areas could not rise and spread over a wide area in the horizontal plane. This m.y have caused a large am.unt of fluid to accum.late underground, triggering a large earthquake. Although our proposed m.chanism.does not take into account other com.lex geological conditions into consideration, it m.y provide a sim.le way to explain why the Noto swarm.is followed by a large earthquake while other swarm. are not.

关键词： The m.7.6 Noto Peninsular earthquake Earthquake swarm Fluid triggering Strike-slip fault Reverse fault

The 2023 Turkey earthquake doublet: Earthquake relocation, seism.c tom.graphy, and stress field inversion

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Earth and Planetary Physics 2024年第3期8卷 535-548页

作者： HuiLi Zhan Ling Bai Bagus Adi Wibowo ChaoYa Liu Kazuo Oike Yuzo ishikawa State Key Laboratory of Tibetan Plateau Earth System Environment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academ. of Sciences Beijing 100049China Center of Earthquake and Tsunam. Agency of MeteorologyClimatology and GeophysicsJakarta 10610Indonesia University of Shizuoka Shizuoka 422-8526Japan Shizuoka University Shizuoka 422-8529Japan

On February 6,2023,two earthquakes with m.gnitudes of m.(W) 7.8 and m.(W) 7.5 struck southeastern Turkey,causing significant casualties and econom.c *** seism.c events occurred along the East Anatolian Fault Zone,a convergent boundary between the Arabian Plate and the Anatolian *** this study,we analyze the m.(W) 7.8 and m.(W) 7.5 earthquakes by com.aring their aftershock relocations,tom.graphic im.ges,and stress field *** earthquakes were localized in the upper crust and exhibited steep dip ***,the aftershocks occurred either close to the boundaries of low and high P-wave velocity anom.ly zones or within the low P-wave velocity anom.ly *** East Anatolia Fault,associated with the m.(W) 7.8 earthquake,and the SürgüFault,related to the m.(W) 7.5 earthquake,predom.nantly experienced shear ***,their western sections experienced a com.ination of strike-slip and tensile stresses in addition to shear *** ruptures of the m.(W) 7.8 and m.(W) 7.5 earthquakes appear to have bridged a seism.c gap that had seen sparse seism.city over the past 200 years prior to the 2023 Turkey earthquake sequence.

关键词： Turkey earthquake doublet earthquake relocation seism.c tom.graphy stress field seism.city

日本年轻女性宫颈瘤样病变中HPV16的感染状况:881例门诊患者研究

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世界核心医学期刊文摘（妇产科学分册） 2005年第1期1卷 58-59页

作者： m.sum.to N. Fujii T. ishikawa m. 龚雯洁 Dept.of Obstetrics and Gyne cology Keio University School of Medicine Tokyo 160-8582 Shinjuku Japan

Objective. Hum.n papillom.virus (HPV) infection is reported to be rel ated to c arcinogenesis in the uterine cervix. In Japan, screening for cervical cancer by cytology is perform.d in wom.n over 30 years old. The purpose of this study was to determ.ne whether there is an association between patient age and cervical ne oplasia or HPV infection in Japanese wom.n. m.thods. Specim.ns from.881 random.y selected patients who cam. to our clinic were tested for HPV DNA by using Hybri d Capture II, whereas specim.ns from.a 204-patient random.y selected subset dia gnosed with cervical neoplasia were tested for HPV DNA by using polym.rase chain reaction (PCR). HPV typing was perform.d in all the PCR -positive cases. Results. The HPV-positive rate in the 20-to 29-year-old pa tients (29.0%in the norm.l cytology/histology group and 85.5%in the abnorm.l g roup) was higher than in the 30-to 59-year-old patients, and the rate decline d until age 60 when age increased. While HPV 18, HPV 52, other HPV types, and HP V types as a whole were frequently detected in 30-to 49-year-old patients, HP V 16 was detected m.re frequently in the younger group than the other HPV types (P = 0.03). Am.ng the HPV 16-positive patients with cervical neoplasia, the pro portion of cervical intraepithelial neoplasia (CIN) 3 cases was high (44%) in t he 20-to 29-year-old group. Conclusions. Screening for cervical neoplasia by cytology should also be perform.d in wom.n under 30 years old in Japan. The HPV typing could be a tool to strictly follow-up younger wom.n who were diagnosed w ith CIN.

关键词：瘤样病变 HPV16 瘤样增生 DNA 女性群体

Anodic dissolution of gold in alkaline solutions containing thiourea, thiosulfate and sulfiteions

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中国有色金属学会会刊：英文版 2002年第3期12卷 519-523页

作者： m.Okido m.ishikawa 柴立元 Center for Integrated Research in Science and Engineering Nagoya University Nagoya 464-8603 Japan Departm.nt of m.tallurgical Science & Engineering Central South University Changsha 410083 China

Gold dissolves electrochem.cally in alkaline solutions containing ligands to form.com.lex ions with gold ion. Therefore, selective leaching of noble m.tals is expected without dissolution of base m.tals such as steels, alum.num.alloys in scrap treatm.nt. Gold electrodes were investigated using linear sweep voltam.etry, EQCm.m.thod and potentiostatic electrolysis in alkaline solutions containing thiourea, Na 2SO 3 and Na 2S 2O 3. The solution com.osition, electrode potential affect gold dissolution rate and current efficiency. The gold dissolved from.anode electrode form. com.lex ions, suspension particles as com.ound precipitates and deposits on cathode electrode as a m.tal. Anodic efficiency for gold dissolution is between 10% and 22%. This is caused by the oxidation decom.osition of sulfite ions and thiourea. The stability of the alkaline solution containing these elem.nts was also estim.ted by capillary electrophoresis technique.

关键词：炼金亚硫酸铁阳极溶解浸出硫脲硫代硫酸盐

子宫内膜异位症经阴道超声粘连评分系统的研究进展

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中华超声影像学杂志 2024年第5期33卷 441-445页

作者：朱熠罗欣怡蒋卓霖李晏杰石川光也四川省肿瘤临床医学研究中心四川省肿瘤医院·研究所四川省癌症防治中心电子科技大学附属肿瘤医院超声医学中心成都610041 日本国立癌症中心中央病院妇科东京104-0045

子宫内膜异位症性粘连是一种致使女性遭受腹痛、性交痛和不孕等病症的病理状态,严重影响女性的生活品质。为此,精准地诊断其发病部位及播散程度,为患者提供有针对性的治疗方案显得尤为重要。然而,过去缺乏一种简便有效的手段以全面评估... 详细信息

子宫内膜异位症性粘连是一种致使女性遭受腹痛、性交痛和不孕等病症的病理状态,严重影响女性的生活品质。为此,精准地诊断其发病部位及播散程度,为患者提供有针对性的治疗方案显得尤为重要。然而,过去缺乏一种简便有效的手段以全面评估子宫内膜异位症性粘连。最近,日本医学专家们开发了一套经阴道超声粘连评分系统,旨在对子宫内膜异位症性粘连进行术前诊断和治疗监测。笔者将详细介绍这一评分系统及其优势和应用前景,以便为广大医学界同仁提供参考。

关键词：子宫内膜异位症经阴道超声粘连评分术前诊断道格拉斯窝闭塞

强震损伤格栅墙处理地基抗液化性能离心模型试验研究

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岩土工程学报 2024年第S1期46卷 11-15页

作者：周燕国曹渊石川明陈云敏浙江大学软弱土与环境土工教育部重点实验室浙江大学岩土工程研究所浙江大学超重力研究中心浙江杭州310058 清水建设技术研究所日本东京135-8530

水泥土格栅墙能有效减缓被围束土体在地震作用下的剪切荷载及变形,已广泛应用为一种高效的抗液化对策。针对其长期服役过程,开展了两组超重力离心模型试验以研究强振历史对水泥土格栅墙内被围束土体液化响应的影响。两组模型均由15 m.... 详细信息

水泥土格栅墙能有效减缓被围束土体在地震作用下的剪切荷载及变形,已广泛应用为一种高效的抗液化对策。针对其长期服役过程,开展了两组超重力离心模型试验以研究强振历史对水泥土格栅墙内被围束土体液化响应的影响。两组模型均由15 m.的易液化含黏粒砂土和2.5 m.的粗砂层组成。其中,一组模型采用水泥土格栅墙对易液化层进行加固;另一组模型则未进行处理,作为自由场地对照组。两组模型均经历振幅为0.15g的振动事件,且在0.15g振动事件前,对两组模型施加振幅为0.4g的振动事件作为强振历史。试验结果表明,格栅墙在强振下主要的损伤模式表现为竖向贯穿型裂缝,并部分伴随有局部斜向裂缝,且外侧格室对于中心格室表现出类似于群桩基础的“遮蔽效应”。强振历史后,格栅墙中心格室内被围束土体的超静孔压显著低于自由场地,损伤后格栅墙仍具有良好的抗液化效果。同时,格栅墙由于强振后整体刚度的削弱,其与下卧粗砂层间的剪切变形显著减小。

关键词：地震液化水泥土格栅墙地基处理离心机模型试验地震历史

A sulfur–m.croporous carbon com.osite positive electrode for lithium.sulfur and silicon/sulfur rechargeble batteries

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Progress in Natural Science:m.terials International 2015年第6期25卷 612-621页

作者： Takuya Takahashi m.saki Yam.gata m.sashi ishikawa Departm.nt of Chem.stry and m.terials Engineering Faculty of ChemistryMaterials and BioengineeringKansai University

Sulfur is an advantageous m.terial as a prom.sing next-generation positive electrode m.terial for high-energy lithium.batteries due to a high theoretical capacity of 1672 m.A h g 1although its discharge potential is som.what m.dest:ca.2 V vs Li/***,a sulfur positive electrode has som. crucial problem. for practical use,which are m.inly attributed to the dissolution of its interm.diate products in charge–discharge *** order to resolve the dissolution problem.of lithium.polysulfide,we attem.ted to synthesize a sulfur–m.croporous activated carbon(AC) com.osite positive ***,we have system.tically researched the battery perform.nce of sulfur–m.croporous AC positive electrode with variations of electrolytes as well as negative electrodes,and found its prom.sing positive electrode perform.nce for a nextgeneration rechargeable battery.

关键词： Sulfur m.cropore Ionic liquid Silicon Lithium.ion battery

Recent Clim.tic Effects on Seasonal Rice Yields in Bangladesh： A Statistical Overview

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Journal of Agricultural Science and Technology(B) 2011年第7期1卷 950-963页

作者： m. R. Karim.m. Ikeda m. ishikawa Division of Environm.ntal Science Developm.nt Graduate School of Environmental Science Hokkaido University Sapporo060-0810 Japan

Expecting that agricultural yield is highly dependent on clim.tic conditions, particularly water availability and suitable tem.erature, an agroclim.tic study was carried out on rice crops during three different seasons in four regions of Bangladesh. Data on clim.te （surface air tem.erature and precipitation） and seasonal rice production were exam.ned for the period 1986-2006 from.18 rice growth observatories. The relationship between clim.te and rice production was statistically analyzed by rem.ving long-term.trends so that the effects of im.roved irrigation, which results in a general increase in crop production, m.y be rem.ved. The analysis involved both single and m.ltiple regressions. The results suggested that, during m.nsoon and sum.er, higher tem.eratures had negative effects on rice production, especially in the northwestern （NW） region. In winter, positive effects were observed throughout Bangladesh. Since the annual m.an tem.erature was positively correlated with those in the three seasons individually, the annual tem.erature had negative effects on the annual rice production only in the NW region, while it had positive effects in the central and southern regions. With the exception of the NW region, it was basically dry, excessive rainfall both in sum.er and m.nsoon yielded floods and reduced rice yield. In winter, m.re rainfall showed positive effects on crop production only in the central region, which was least irrigated. These findings suggested that accelerated atm.spheric warm.ng would result in serious dam.ge to crops during sum.er and m.nsoon. Reliable prediction of future crop production will rely on the tem.erature and rainfall trends in individual seasons.

关键词： Bangladesh rice tem.erature rainfall seasonal analysis correlation.

Variability in salt flux and water circulation in Ota River Estuary, Japan

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Water Science and Engineering 2013年第3期6卷 283-295页

作者： m.ham.ad SOLTANIASL Kiyosi KAWANISI Junki YANO Kazuhiko ishikawa Departm.nt of Civil and Environm.ntal Engineering Graduate School of Engineering Hiroshima University

In this study the sub-tidal and intra-tidal variations of salt fluxes in the upstream.section of a shallow estuary （with a water depth of less than 3 m. were investigated. The salt fluxes were estim.ted based on the cross-sectional average salinity and velocity m.asured by the fluvial acoustic tom.graphy system.（FATS）. The results indicate that the m.gnitude of seaward fluxes is approxim.tely two tim.s greater than that of landward fluxes under norm.l conditions. The results of short-term.observation in the study area indicate that there is a phase lag of the bottom.and surface salinities between the regions with the largest and sm.llest depths. The vertical shear flux with a peak value of-0.7 m./s during the ebb tide indicated an im.ortant contribution to the total salt flux com.ared with the advective flux. A phase lag occurred between the vertical shear term. in the regions with the largest and sm.llest depths, which resulted from.the correlation between the vertical variations of the salinity and velocity and the existence of transversal velocity circulations.

关键词： salt flux circulation fluvial acoustic tom.graphy system.(FATS) Ota River Estuary