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Comparison.of Design.an. An.lysis of Con.rete Gravity dam

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n.tural Resources 2012年第1期3卷 18-28页

作者： Md. Hazrat Ali M. R. Alam M. n. Haque M. J. Alam Departmen. of Civil En.in.erin. Chittagong University of Engineering & Technology Chittagong Bangladesh

Gravity dams are solid con.rete structures that main.ain.their stability again.t design.loads from the geometric shape, mass an. stren.th of the con.rete. The purposes of dam con.truction.may in.lude n.vigation. flood damage reduction. hydroelectric power gen.ration. fish an. wildlife en.an.emen., water quality, water supply, an. recreation. The design.an. evaluation.of con.rete gravity dam for earthquake loadin. must be based on.appropriate criteria that reflect both the desired level of safety an. the choice of the design.an. evaluation.procedures. In.Ban.ladesh, the en.ire coun.ry is divided in.o 3 seismic zon.s, depen.in. upon.the severity of the earthquake in.4}sity. Thus, the main.aim of this study is to design.high con.rete gravity dams based on.the U.S.B.R. recommen.ation. in.seismic zon. II of Ban.ladesh, for varyin. horizon.al earthquake in.4}sities from 0.10 g - 0.30 g with 0.05 g in.remen. to take in.o accoun. the un.ertain.y an. severity of earthquake in.4}sities an. con.tan. other design.loads, an. to an.lyze its stability an. stress con.ition. usin. an.lytical 2D gravity method an. fin.te elemen. method. The results of the horizon.al earthquake in.4}sity perturbation.suggest that the stabilizin. momen.s are foun. to decrease sign.fican.ly with the in.remen. of horizon.al earthquake in.4}sity while dealin. with the U.S.B.R. recommen.ed in.tial dam section. in.icatin. en.an.er to the dam stability, thus larger dam section.is provided to in.rease the stabilizin. momen.s an. to make it safe again.t failure. The vertical, prin.ipal an. shear stresses obtain.d usin. An.YS 5.4 an.lyses are compared with those obtain.d usin. 2D gravity method an. foun. less compares to 2D gravity method, except the prin.ipal stresses at the toe of the gravity dam for 0.10 g - 0.15 g. Although, it seems apparen.ly that smaller dam section.may be sufficien. for stress an.lyses usin. An.YS 5.4, it would n.t be possible to achieve the required factors of safety with smaller dam s

关键词： Comparison Con.rete Gravity dam dam Failure Design Earthquake In.0}sity Perturbation Stability an. Stress

Resource-specific Orders in.European.Day-ahead Market Un.er Differen. Pricin. Rules

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Journ.l of Modern.Power Systems an. Clean.En.rgy 2023年第3期11卷 757-769页

作者： Ilias G.Marn.ris An.reas V.n.omaris Pan.elis n.Biskas Grigorios A.Dourbois Departmen. of Electrical an. Computer En.in.erin. Aristotle University of ThessalonikiThessaloniki 54124Greece

This paper addresses two issues that con.ern.the electricity market participan.s un.er the European.day-ahead market(dam)framework,n.mely the feasibility of the attain.d schedules an. the n.n.con.iscation.of cleared *** address the first issue,n.w resource-specific orders,i.e.,thermal orders for thermal gen.ratin. un.ts,deman. respon.e orders for load respon.ive resources,an. en.rgy limited orders for storage resources,are proposed an. in.orporated in.the existin. European.dam clearin. *** address the secon. issue,two approaches which lead to a n.n.con.iscatory market are an.lyzed:①discrimin.tory pricin. with side-paymen.s(***);an.②n.n.discrimin.tory pricin. excludin. out-ofmon.y orders(European.paradigm).A comparison.is performed between.the two approaches to in.estigate the most appropriate pricin. rule in.terms of social welfare,derived reven.es for the sellers,an. efficien.y of the attain.d *** proposed model with n.w resource-specific products is evaluated in.a European.test system,achievin. robust *** feasibility of the attain.d schedules is demon.trated when.usin. resource-specific orders compared with block ***,the results in.icate the supremacy of discrimin.tory pricin. with side-paymen.s compared with the curren. European.pricin. rule.

关键词： Day-ahead market deman. respon.e en.rgy storage n.n.con.iscatory market pricin. thermal order

Geophysical Con.ribution.for the Determin.tion.of Aquifer Properties in.Memve Ele, South Cameroon

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Journ.l of Water Resource an. Protection 2012年第10期4卷 885-890页

作者： Harlin.L. E. n.oun.ou Philippe n. n.uck Dieudon.é Bisso Stéphan. Assembe Eliézer M. Dicoum Departmen. of Earth Scien.es Faculty of Science University of Yaounde I Yaounde Cameroon Departmen. of Physics Faculty of Science University of Yaounde I Yaounde Cameroon

This article aims to localise aquifer an. to estimate hydraulic parameters such as tran.missivity an. tran.erse resistan.e in.the Memve Ele dam site (26.35 km2) in.South-Cameroon.region. usin. audiomagn.totelluric (AMT) method. For this purpose, resistivity data are collected at twen.y-two measuremen. station. distributed alon. two perpen.icular profiles in.the study area. The soun.in. curves of phase an. impedan.e are modelled an. in.erpreted. The geological models an. geoelectrical section. are also provided. The tran.verse resistivity an. tran.missivity field maps are plotted. The audiomagn.totellurics in.ights have been.compared with boreholes. All these results allow us to localise the area which may be suitable to set up mon.torin. wells.

关键词： Hydraulic Parameters Aquifer Audio-Magn.totelluric Method Soun.in. Curves Memve Ele

Experimen.al Trypan.soma brucei in.ection.at immediate post partum period:effects on.dam an. the offsprin.

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Asian.Pacific Journ.l of Tropical Medicin. 2010年第7期3卷 531-534页

作者： Izuchukwu S Ochiogu Chukwuka n.Uchen.u John.I Ihedioha Departmen. of Veterin.ry Obstetrics an. Reproductive Diseases University of NigeriaNsukkaEnugu StateNigeria Departmen. of Veterin.ry Physiology an. Pharmacology University of NigeriaNsukkaEnugu StateNigeria Departmen. of Veterin.ry Pathology an. Microbiology University of NigeriaNsukkaEnugu StateNigeria

Objective:To in.estigate the effects of immediate post-partum in.ection.with Trypan.soma brucei（***） on.dam an. ***:Sixty female Albin. rats（Rattus n.rvegicus） weighin. between.130-170 g were used as an.mal *** an.mals were divided as follows: 25 in.ected between.1-5 days post partum;10 in.ected un.red as positive con.rols;an. 25 un.n.ected as n.gative *** followin. parameters were evaluated:packed cell volume （PCV）,level of parasitaemia,survival time,litter size an. litter weight at birth an. on.days 7, 14 an. 21 post delivery,usin. con.en.ion.l *** tran.-mammary tran.mission.of in.ection.to litter through milk was also ***:The results showed a comparatively （Pn.PCV value for the un.n.ected n.gative con.rol on.the 8 day post in.ection.compared with the in.ected groups which correspon.ed with the in.reasin. level of parasitaemia in.the two in.ected *** litter size an. litter weights were higher（Pn.the un.n.ected con.rols on.the 21st *** time in.the in.ected groups were *** eviden.e of tran.-mammary tran.fer of in.ection.was ***:*** in.ection.durin. immediate post partum period is detrimen.al to the dam an. impairs growth of the offsprin..

关键词： Trypan.soma brucei Post-partum In.ection Litter Parasitaemia.

Modelin. the triaxial behavior of riverbed an. blasted quarried rockfill materials usin. harden.n. soil model

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Journ.l of Rock Mechan.cs an. Geotechn.cal En.in.erin. 2016年第3期8卷 350-365页

作者： n.P.Hon.an.davar K.G.Sharma Cen.ral Soil an. Materials Research Station.(CSMRS) New Delhi India In.ian.In.titute of Techn.logy Delhi (IITD) New Delhi India

Riverbed modeled rockfill material from n.a Dehin. dam project, Arun.chal Pradesh, In.ia an. blasted quarried modeled rockfill material from Kol dam project, Himachal Pradesh, In.ia were con.idered for this research. Riverbed rockfill material is roun.ed to sub-roun.ed an. quarried rockfill material is an.ular to sub-an.ular in.shape. Prototype rockfill materials were modeled in.o maximum particle size （dmax） of 4.75 mm, 10 mm, 19 mm, 25 mm, 5O mm an. 80 mm for testin. in.the laboratory. Con.olidated drain.d triaxial tests were con.ucted on.modeled rockfill materials with a specimen.size of 381 mm in.diameter an. 813 mm in.height to study the stress-strain.volume chan.e behavior for both rockfill materials. In.ex properties, i.e. un.ompacted void con.2}t （UVC） an. un.axial compressive stren.th （UCS）, were determin.d for both rockfill materials in.association.with material parameters. An.elasto- plastic harden.n. soil （HS） con.titutive model was used to predict the behavior of modeled rockfill materials. Comparin. the predicted an. observed stress-strain.volume chan.e behavior, it is foun. that both observed an. predicted behaviors match closely. The procedures were developed to predict the shear stren.th an. elastic parameters of rockfill materials usin. the in.ex properties, i.e. UCS, UVC an. relative den.ity （RD）, an. prediction. were made satisfactorily. Comparin. the predicted an. experi- men.ally determin.d shear stren.ths an. elastic parameters, it is observed that both values match closely. Then.these procedures were used to predict the elastic an. shear stren.th parameters of large- size prototype rockfill materials. Correlation. were also developed between.in.ex properties an. ma- terial stren.th parameters （dilatan.y an.le, ~, an. in.tial void ratio, ein.t, required for HS model） of modeled rockfill materials an. the same correlation. were used to predict the stren.th parameters for the prototype rockfill materials. Usin. the predicted material parameters,

关键词： Riverbed rockfill materialsQuarried rockfill materialsTriaxial testin.Modelin.Stren.th lawHarden.n. soil (HS) model

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越南Orgarn.care展示商铺

现代装饰 2019年第6期 36-41页

作者：无 n.uyēn.Hai Lon. Tran.Thi n.u n.on.n.uyēn.Tuan.Dan. Pham Khán. Duy LêVan.Duy Bao Saurav Shah Quan. dam(摄影) 范嘉苑(编译) Tropical Space 越南Tropical Space

Orgarn.care项目是一个为越南传统鱼露和有机产品而打造的展示空间。该项目由一座建于1975年之前的旧房子改造而成,其本身已历经过数次加固及扩建。对于此次的展示商铺改造,设计师旨在用具有越南特色的传统建材构建空间,让独具热带风情... 详细信息

Orgarn.care项目是一个为越南传统鱼露和有机产品而打造的展示空间。该项目由一座建于1975年之前的旧房子改造而成,其本身已历经过数次加固及扩建。对于此次的展示商铺改造,设计师旨在用具有越南特色的传统建材构建空间,让独具热带风情的空间元素与传统越南鱼露相互映衬,产生有趣的对话。

关键词：框架系统 Orgarn.care 热带风情

Seepage In.estigation.on.an.Existin. dam Usin. Very Low Frequen.y Electromagn.tic (VLF-EM) Methods: A Case Study of Shagari Earth dam, Sokoto, n.rth Western.n.geria

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In.ern.tion.l Journ.l of Geoscien.es 2020年第2期11卷 25-36页

作者： U. Z. Magawata D. S. Bon.e B. U. Abdullahi Basiru Qudus M. n. Yahaya Physics Departmen. Kebbi State University of Science and Technology Aliero Nigeria Departmen. of Scien.e Laboratory Techn.logy The Oke-Ogun Polytechnic Saki Oyo State Nigeria Departmen. of Physics with Electron.cs Federal University Birnin-Kebbi Birnin Kebbi Nigeria

Very low frequen.y (VLF-EM) was used to assess variation. in.overburden.composition. bedrock lithology an. the hidden.Sedimen.ary structures within.the foun.ation.of Shagari dam of the sedimen.ary basin.of n.rthwestern.n.geria. Four VLF-electromagn.tic (EM) traverses were occupied at 10 m in.tervals. The VLF n.rmal an. filtered real compon.n. irregularities iden.ify major geological in.erfaces suspected to be faults/fractured zon.s. The poin.s of crossover between.the real an. imagin.ry compon.n.s delin.ate the fractured zon.s, which were iden.ified as areas of possible seepage (sloughin. an. pipin.). The fractured zon.s are suspected to be presen. at all traverses. In.total, 38 fractured zon.s were iden.ified alon. the dam emban.men. an. can.l site, while 17 major fractures occurren.e dippers alon. the Traverses at a poin., Traverse 1 (F3, F4, F5, F7, F10, F11), Traverse 2 (F12, F13, F21, F22), Traverse 3 (F23, F24, F29) an. Traverse 4 (F32, F33, F34, F38), an. coin.ide with cross over poin. at 4 traverses. These seepage zon.s cause heterogen.ity in.the sub-surface structure that could be prime to dam failure which in.turn.leads to the floodin., decreases in.irrigation. activities of the peoples leavin. aroun. the dam an. loss of several hun.reds of life when.care n.t taken. The result of the study suggests that VLF is suitable for observin. seepages in.emban.men. dams.

关键词： Overburden In.erfaces Occurren.e Heterogen.ity Emban.men.

Performan.e an. calibration.of quark/gluon.jet taggers usin. 140 fb^(-1) of pp collision. at √s=13 TeV with the ATLAS detector

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Chin.se Physics C 2024年第2期48卷 1-25页

作者： G. Aad B. Abbott K. Abelin. n.J. Abicht S.H. Abidi A. Aboulhorma H. Abramowicz H. Abreu Y. Abulaiti B.S. Acharya C. Adam Bourdarios L. Adamczyk S.V. Addepalli M.J. Addison.J. Adelman.A. Adiguzel T. Adye A.A. Affolder Y. Afik M.n. Agaras J. Agarwala A. Aggarwal C. Agheorghiesei A. Ahmad F. Ahmadov W.S. Ahmed S. Ahuja X. Ai G. Aielli A. Aikot M. Ait Tamlihat B. Aitben.hikh I. Aizen.erg M. Akbiyik T.P.A. Åkesson.A.V. Akimov D. Akiyama n.n. Akolkar K. Al Khoury G.L. Alberghi J. Albert P. Albicocco G.L. Albouy S. Alderweireldt M. Aleksa I.n. Aleksan.rov C. Alexa T. Alexopoulos F. Alfon.i M. Algren.M. Alhroob B. Ali H.M.J. Ali S. Ali S.W. Alibocus M. Aliev G. Alimon.i W. Alkakhi C. Allaire B.M.M. Allbrooke J.F. Allen.C.A. Allen.es Flores P.P. Allport A. Aloisio F. Alon.o C. Alpigian. M. Alvarez Estevez A. Alvarez Fern.n.ez M. Alves Cardoso M.G. Alviggi M. Aly Y. Amaral Coutin.o A. Ambler C. Amelun. M. Amerl C.G. Ames D. Amidei S.P. Amor Dos San.os K.R. Amos V. An.n.ev C. An.stopoulos T. An.een.J.K. An.ers S.Y. An.rean.A. An.reazza S. An.elidakis A. An.erami A.V. An.sen.ov A. An.ovi C. An.el M.T. An.hon. E. An.ipov M. An.on.lli F. An.lli M. Aoki T. Aoki J.A. Aparisi Pozo M.A. Aparo L. Aperio Bella C. Appelt A. Apyan.n. Aran.abal S.J. Arbiol Val C. Arcan.eletti A.T.H. Arce E. Aren. J-F. Arguin.S. Argyropoulos J.-H. Arlin. O. Arn.ez H. Arn.ld G. Arton. H. Asada K. Asai S. Asai n.A. Asbah J. Assahsah K. Assamagan.R. Astalos S. Atashi R.J. Atkin.M. Atkin.on.H. Atman. P.A. Atmasiddha K. Augsten S. Auricchio A.D. Auriol V.A. Austrup G. Avolio K. Axiotis G. Azuelos D. Babal H. Bachacou K. Bachas A. Bachiu F. Backman.A. Badea P. Bagn.ia M. Bahman. A.J. Bailey V.R. Bailey J.T. Bain.s L. Bain.s O.K. Baker E. Bakos D. Bakshi Gupta V. Balakrishn.n.R. Balasubraman.an.E.M. Baldin.P. Balek E. Ballaben. F. Balli L.M. Baltes W.K. Balun.s J. Balz E. Ban.s M. Ban.ieramon.e A. Ban.yopadhyay S. Ban.al L. Barak M. Barakat E.L. Barberio D. Barberis M. Barbero M.Z. Barel K.n. Baren.s T. Barillari M-S. Barisits T. Barklow P. Baron.D.A. Baron.Mo The ATLAS Collaboration

The iden.ification.of jets origin.tin. from quarks an. gluon.,often referred to as quark/gluon.taggin.,plays an.importan. role in.various an.lyses performed at the Large Hadron.Collider,as Stan.ard Model measuremen.s an. searches for n.w particles decayin. to quarks often rely on.suppressin. a large gluon.in.uced *** paper describes the measuremen. of the efficien.ies of quark/gluon.taggers developed within.the ATLAS Collaboration.usin. √s=13 TeV proton.proton.collision.data with an.in.egrated lumin.sity of 140 fb^(-1) collected by the ATLAS *** taggers with high performan.es in.rejectin. jets from gluon.over jets from quarks are studied:on. tagger is based on.requiremen.s on.the n.mber of in.er-detector tracks associated with the jet,an. the other combin.s several jet substructure observables usin. a boosted decision.tree.A method is established to determin. the quark/gluon.fraction.in.data,by usin. quark/gluon.en.iched subsamples defin.d by the jet *** in.taggin. efficien.y between.data an. simulation.are provided for jets with tran.verse momen.um between.500 GeV an. 2 TeV an. for multiple tagger workin. poin.s.

关键词： ATLAS JET QUARK GLUOn TAGGIn.

Variation.in.abun.an.e an. habitat relation.hip of three un.erstory in.ectivorous birds in.a disturbed lan.scape of n.otropical dry forest of Colombia

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Avian.Research 2020年第3期11卷 265-276页

作者： Camilo Loaiza Olga LMon.0}egro David Kin. Man.el Spín.la Lilibeth Arin.a Palacio Agustín.Rudas In.tituto de Cien.ias n.turales Universidad Nacional de ColombiaBogotáColombia n.rthern.Research Station USDA Forest ServiceUniversity of Massachusetts204 Holdsworth HallAmherstMA 01003USA In.tituto In.ern.cion.l en.Con.ervación.y Man.jo de Vida Silvestre Universidad NacionalApartado1350-3000 HerediaCosta Rica.

Backgroun.:Evaluatin. relation.hips between.avian.population. an. their habitat is importan. for un.erstan.in. the biology of these species an. for man.gemen. decision. that improve the effectiven.ss of restoration.*** in.estigated how habitat variation.alon. a disturban.e gradien. affected the abun.an.e of three in.ectivorous bird species,White-bellied An.bird(Myrmeciza lon.ipes),Barred An.shrike(Thamn.philus doliatus),an. Pale-breasted Spin.tail(Syn.llaxis albescen.)in.a n.otropical dry forest remn.n. in.cen.ral ***:The study area,which is located in.Magdalen. Valley,is un.er ecological restoration.after the con.truction.of the“El Quimbo”hydroelectric dam,with a gradien. of habitat con.ition.,from relatively advan.ed secon.ary growth to recen.ly disturbed *** con.ucted bird surveys an. quan.ified the habitat con.ition. from Jun. 2018 to Jun. *** compared the relative abun.an.e of the birds amon. the three zon.s with in.reasin. disturban.e an. modeled the relation.hip between.the bird abun.an.e with the micro-an. lan.scape-habitat con.ition.,with Poisson.gen.ralized lin.ar model ***:The relative abun.an.e of the three bird species varied accordin. to the habitat features an. disturban.e *** abun.an.e of White-bellied An.birds was higher in.forests an. thickets than.shrublan. fragmen.s;Barred An.shrike was more abun.an. in.shrublan. an. thickets than.in.forest fragmen.s,an. Pale-breasted Spin.tail had the highest abun.an.e in.shrublan. an. the lowest in.forest *** abun.an.e of both White-bellied An.bird an. Pale-breasted Spin.tail did n.t differ amon. zon.s with differen. levels of disturban.e,while the abun.an.e of Barred An.shrike decreased in.zon.s with more ***:There were sign.fican. differen.es in.the habitat relation.hips of the three un.erstory in.ectivorous species alon. the disturban.e gradien.,although these species were within.the same trophic *** bird species prefer

关键词： Bird population.ecology Gen.ralized lin.ar models Wildlife habitat restoration