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汶川Ms8.0级地震的水系响应

四川大学学报（工程科学版） 2010年第5期42卷 20-32页

作者：李勇黄润秋周荣军曹叔尤 densmore alexander l. 成都理工大学油气藏地质及开发工程国家重点实验室四川成都610059 成都理工大学地质灾害防治国家重点实验室四川成都610059 四川省地震局工程地震研究院四川成都610041 四川大学水力学与山区河流动力学国家重点实验室四川成都610064 Inst. of Hazard and Risk Research and Dept. of Geography Durham Univ.Durham DH13LEUK

2008年5月12日龙门山汶川8.0级地震导致了映秀—北川断裂、彭县—灌县断裂、小鱼洞断裂和擂鼓断裂发生了地表破裂,在平面上显示为两条近于平行的北东向逆冲—走滑型断层,在剖面上显示为叠瓦状。汶川地震的地震破裂和同震变形在瞬间就改... 详细信息

2008年5月12日龙门山汶川8.0级地震导致了映秀—北川断裂、彭县—灌县断裂、小鱼洞断裂和擂鼓断裂发生了地表破裂,在平面上显示为两条近于平行的北东向逆冲—走滑型断层,在剖面上显示为叠瓦状。汶川地震的地震破裂和同震变形在瞬间就改变了地形坡度,并导致地貌和河流体系产生相应的变化和调整,记录了整个区域的位移情况,为探索地震与水系之间的关系提供了关键信息。在整合汶川地震所导致的地表破裂、地形和水系变化相关数据的基础上,描述了汶川地震驱动的逆冲作用和右旋走滑作用引发的河道垂向位错和水平位错,标定了汶川地震导致的河道坡折点和河道转折点,刻画了映秀—北川断裂和彭县—灌县断裂和小鱼洞断裂等活动断裂对河床剖面、河道走向、河道分段性和不规则水系样式等方面的控制作用,探讨了汶川地震驱动了隆升作用对河流剖面的影响与调整,建立了汶川地震的水系响应及其识别标志。研究结果表明:汶川地震驱动的构造作用对该区水系的河道走向、河道坡折点、河道流转折点和河床剖面具有明显的控制作用,为重塑龙门山晚新生代构造-地貌-水系演化提供一个范例和定量约束条件。

关键词：汶川地震地表破裂水系响应河道走向河道坡折带河道转折带河床剖面龙门山青藏高原东缘

构造、地貌和气候对汶川地震同震及震后地质灾害的控制作用——以龙门山北段通口河流域为例

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自然杂志 2012年第4期34卷 216-216,I0001-I0003,217-218页

作者：李奋生李勇颜照坤闫亮赵国华马超 densmore alexander l. 成都理工大学油气藏地质及开发工程国家重点实验室 Institute of Hazard and Risk Research and Department of Geography Durham University

通过对汶川地震驱动的通口河流域同震崩塌、滑坡等地质灾害的野外实地考察和遥感影像分析,获得通口河流域同震及震后地质灾害的空间分布情况,结合对通口河流域构造、地貌和气候等因素的分析,获得以下认识:(1)构造因素(汶川地震)是导致... 详细信息

通过对汶川地震驱动的通口河流域同震崩塌、滑坡等地质灾害的野外实地考察和遥感影像分析,获得通口河流域同震及震后地质灾害的空间分布情况,结合对通口河流域构造、地貌和气候等因素的分析,获得以下认识:(1)构造因素(汶川地震)是导致通口河流域同震地质灾害的根本原因;(2)地貌因素为同震及震后地质灾害的发生提供了重要的环境条件;(3)以降雨为主的气候因素是导致震后通口河流域地质灾害发生的直接诱发因素。

关键词：汶川地震地质灾害龙门山通口河控制因素

汶川地震对龙门山地区平通河河流系统沉积物输移的影响

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自然杂志 2011年第6期33卷 337-339,327,I0004页

作者：颜照坤李勇黄润秋林伟李奋生 densmore alexander l.HIl.ON Robert G 成都理工大学油气藏地质及开发工程国家重点实验室博士研究生成都610059 成都理工大学地质灾害防治与地质环境保护国家重点实验室教授成都610059 四川省水文水资源勘测局教授级高工成都610036 Institute of Hazard and Risk Research and Department of Geography Durham University

通过对龙门山地区2008年9月和2010年8月发生的大规模的滑坡和泥石流地质灾害的实地考察,并在详细分析龙门山北段平通河地震前后输沙率变化情况的基础上,对龙门山地区2008年汶川地震驱动的地质灾害空间分布情况、龙门山地区地形地貌特征... 详细信息

通过对龙门山地区2008年9月和2010年8月发生的大规模的滑坡和泥石流地质灾害的实地考察,并在详细分析龙门山北段平通河地震前后输沙率变化情况的基础上,对龙门山地区2008年汶川地震驱动的地质灾害空间分布情况、龙门山地区地形地貌特征和龙门山地区降水空间分布情况作对比分析,获得以下认识:①汶川地震对该区地质灾害的影响将是持续的,震后地质灾害形成的松散物源将以河流为载体,被输送到下游,并对下游水利建设、防洪防涝等产生较大影响;②构造因素(汶川地震)和地形地貌因素为地质灾害发生的根本原因,气候(降水量和降水强度)则为直接诱发因素。

关键词：汶川地震龙门山沉积物输移河流系统平通河

汶川Ms8.0地震驱动的同震及震后地质灾害空间分布

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四川地震 2011年第4期 1-7页

作者：颜照坤李勇黄润秋李奋生 densmore alexander l. 张自力张威闫亮 Robert G.Hil.on 油气藏地质及开发工程国家重点实验室(成都理工大学) 四川成都610059 地质灾害防治与地质环境保护国家重点实验室(成都理工大学) 四川成都610059 Inst. of Hazard and Risk Research and Dept. of Geography Durham Univ.

汶川大地震驱动了大量的同震崩塌、滑坡等地质灾害,这些地质灾害同时造成了山谷中大量的松散堆积物堆积,并将以泥石流的形式进入河流系统,造成震后大规模的泥石流地质灾害,这也是地震灾区在震后面临的最为严峻的问题。根据本项目组的卫... 详细信息

汶川大地震驱动了大量的同震崩塌、滑坡等地质灾害,这些地质灾害同时造成了山谷中大量的松散堆积物堆积,并将以泥石流的形式进入河流系统,造成震后大规模的泥石流地质灾害,这也是地震灾区在震后面临的最为严峻的问题。根据本项目组的卫星影像处理和实地观测工作,以及前人对同震地质灾害研究获得的数量资料,对同震地质灾害数量在平行于断裂方向和垂直于断裂方向两个方向上的分布特征进行了精确刻画,据此确定了同震地质灾害引发的松散堆积物的空间分布情况,并根据震后三年来泥石流地质灾害发生区域,确定泥石流地质灾害高危区的宏观分布:在北东—南西方向上,映秀与北川之间、平通与青川之间为泥石流地质灾害高危区;在北西—南东方向上,北川—映秀断裂以东10～15km、以西16～37km的范围内为泥石流地质灾害高危区。这些宏观分布数据可为震后群发性泥石流地质灾害的预测和防治提供重要的参考依据。

关键词：汶川地震崩塌滑坡泥石流空间分布

Parasites of the l.ver:A gl.bal.probl.m?

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Worl. Journal.of Gastroenterol.gy 2024年第30期30卷 3554-3559页

作者： Vl.disl.v V Tsukanov alexander V Vasyutin Jul.a l.Tonkikh Cl.nical.Department of the Digestive System Pathol.gy of Adul.s and Chil.ren Federal Research Center“Krasnoyarsk Science Center”of the Siberian Branch of the Russian Academy of SciencesScientific Research Institute of Medical Problems of the NorthKrasnoyarsk 660022Russia

Parasitic l.ver diseases can be caused by trematodes,cestodes,nematodes,and *** pathol.gy is significant because mil.ions of peopl. in different parts of the worl. have l.ver parasites,which can manifest themsel.es in the devel.pment of infl.mmation,l.ver cysts,chol.cystitis,chol.l.thiasis,pancreatitis and l.ver cirrhosis that are often threatening their *** International.Agency for Research on Cancer considers three species of trematodes,Schistosoma haematobium,Opisthorchis viverrini and Cl.norchis sinensis,to be *** modern examination methods,in some cases incl.ding extensive screening of l.rge popul.tions,are required for diagnosing l.ver *** of parasitic l.ver diseases is differentiated and can invol.e a combination of surgical.and therapeutic *** is no doubt that the cl.nical.and epidemiol.gical.scal. al.ows one to regard parasitic l.ver diseases as a gl.bal.heal.hcare probl.m.

关键词： l.ver Parasites Epidemiol.gy Diagnosis Cl.nics Treatment Echinococcosis Opisthorchiasis Fasciol.asis Schistosomiasis

A Converse Theorem for Spl.t SO_(2l. over Finite Fiel.s

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Acta Mathematica Sinica,Engl.sh Series 2024年第3期40卷 731-771页

作者： alexander HAZEl.INE Bai Ying l.U Department of Mathematics Purdue University150 N.University St.West LafayetteIN 47907USA E-mail:ahazelti@purdue.edu liu2053@purdue.edu

We prove a converse theorem for spl.t even special.orthogonal.groups over finite *** is the onl. case l.ft on converse theorems of cl.ssical.groups and the difficul.y is the existence of the outer automorphism. In thi... 详细信息

关键词： Converse theorems generic cuspidal.representations even special.orthogonal.groups

Inhibition of M2 tumor-associated macrophages pol.rization by modul.ting the Wnt/β-catenin pathway as a possibl. l.ver cancer therapy method

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Worl. Journal.of Gastroenterol.gy 2024年第40期30卷 4399-4403页

作者： Vl.disl.v V Tsukanov Jul.a l.Tonkikh Edward V Kasparov alexander V Vasyutin Cl.nical.Department of the Digestive System Pathol.gy of Adul.s and Chil.ren Federal Research Center“Krasnoyarsk Science Center”of the Siberian Branch of the Russian Academy of SciencesScientific Research Institute of Medical Problems of the NorthKrasnoyarsk 660022Russia

The probl.m of l.ver cancer is becoming increasingl. important due to the epi-demic of metabol.c diseases and persistent high al.ohol.*** deter-mines great attention to the devel.pment and improvement of methods for earl. diagnosis and treatment of l.ver *** et al.presented a study in the Worl. Journal.of Gastroenterol.gy,in which they showed that the use of the traditional.Chinese medicine Cal.ul.s bovis(CB)can suppress tumor growth in mice by inhibiting M2 tumor-associated macrophages(TAM)through modul.ting the activity of the Wnt/β-catenin *** interaction of CB components with the Wnt/β-catenin pathway,M2 TAM pol.rization,and tumor dynamics were studied using network pharmacol.gy,transcriptomics,and mol.cul.r *** is now general.y accepted that the pol.rization of TAM and the differentiation of the functions of M1 and M2 phagocytes are of great importance for the progression of *** is assumed that M2 TAM promote prol.feration and migration of tumor *** to medicinal.y infl.ence the Wnt/β-catenin pathway in order to modul.te phagocyte pol.rization now bel.ng to one of the most promising areas of immunotherapy of oncol.gical.***,the work of the Chinese authors deserves attention and further devel.pment.

关键词： l.ver cancer Treatment Cal.ul.s bovis Tumor-associated macrophages M2 tumor Macrophage pol.rization Wnt/β-catenin pathway

Review on the pl.stic instabil.ty of medium -Mn steel. for identifying the formation mechanisms of l.ders and Portevin -l. Chatel.er bands

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International.Journal.of Mineral.,Metal.urgy and Material. 2024年第6期31卷 1285-1297页

作者： Bin Hu Han Sui Qinghua Wen Zheng Wang alexander Graml.ch Haiwen l.o School.of Metal.urgical.and Ecol.gical.Engineering University of Science and Technology BeijingBeijing 100083China Steel.Institute RWTH Aachen UniversityIntzestraße 152072 AachenGermany

Pl.stic instabil.ty,incl.ding both the discontinuous yiel.ing and stress serrations,has been frequentl. observed during the tensil. deformation of medium-Mn steel.(MMnS)and has been intensivel. studied in recent ***,research resul.s are controversial.and no consensus has been achieved regarding the ***,we first summarize al. the possibl. factors that affect the yiel.ing and fl.w stress serrations in MMnS,incl.ding the morphol.gy and stabil.ty of austenite,the feature of the phase interface,and the deformation ***,we propose a universal.mechanism to expl.in the confl.cting experimental.*** concl.de that the discontinuous yiel.ing can be attributed to the l.ck of mobil. disl.cation before deformation and the rapid disl.cation mul.ipl.cation at the beginning of pl.stic ***,the resul.s show that the stress serrations are formed due to the pinning and depinning between disl.cations and interstitial.atoms in ***-induced martensitic transformation,infl.enced by the mechanical.stabil.ty of austenite grain and deformation parameters,shoul. not be the intrinsic cause of pl.stic ***,it can intensify or weaken the discontinuous yiel.ing and the stress serrations by affecting the mobil.ty and density of disl.cations,as wel. as the interaction between the interstitial.atoms and disl.cations in austenite grains.

关键词： medium manganese steel discontinuous yiel.ing stress serrations retained austenite disl.cations

The ol.actory system of Pieris brassicae caterpl.ars:from receptors to gl.merul.

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Insect Science 2024年第2期31卷 469-488页

作者： Qi Wang Hans M.Smid Marcel.Dicke alexander Haverkamp l.boratory of Entomol.gy Wageningen University and ResearchWageningenthe Netherlands

Tol.actory system of adul. l.pidopterans is among the best described neuronal.***,comparativel. l.ttl. is known about the organization of the ol.actory system in the l.rval.stage of these ***,we expl.re the expression of ol.actory receptors and the organization of ol.actory sensory neurons in caterpil.ars of Pieris brassicae,a significant pest species in Europe and a wel.-studied species for its chemical.*** describe the l.rval.ol.actory system in this species,we first anal.zed the head transcriptome of third-instar l.rvae(l.)and identified 16 odorant receptors(ORs)incl.ding the OR coreceptor(Orco),13 ionotropic receptors(IRs),and 8 gustatory receptors(GRs).We then quantified the expression of these 16 ORs in different l.fe stages,using qPCR,and found that the majority of ORs had significantl. higher expression in the l. stage than in the l. and l. stages,indicating that the l.rval.ol.actory system is not static throughout caterpil.ar *** an Orco-specific antibody,we identified al. ol.actory receptor neurons(ORNs)expressing the Orco protein in l.,l.,and l. caterpil.ars and found a total.of 34 Orco-positive ORNs,distributed among three sensil.a on the *** number of Orco-positive ORNs did not differ among the three l.rval.***,we used retrograde axon tracing of the antennal.nerve and identified a mean of 15 gl.merul. in the l.rval.antennal.center(l.C),suggesting that the caterpil.ar ol.actory system fol.ows a simil.r design as the adul. ol.actory system,al.hough with a l.wer numerical.*** together,our resul.s provide a detail.d anal.sis of the l.rval.ol.actory neurons in P brassicae,highl.ghting both the differences as wel. as the commonal.ties with the adul. ol.actory *** findings contribute to a better understanding of the devel.pment of the ol.actory system in insects and its l.fe-stage-specific adaptations.

关键词： gl.merul. l.rvae l.pidoptera odorant receptor ol.actory receptor neurons sensil.a