检索结果-南通市图书馆

Rea.-Time Computer a.a.ytica. a.plica.ion in Pressure Tra.sient a.a.ysis of Petroleum Reservoirs

Interna.iona. Journa. of Geosciences 2013年第8期4卷 1186-1192页

作者： Ka.ya.Kha.ri sadiq a. shah a.ha.F. H. Pa.ha. Bila. Sha.s a.hfa.ue a. Memon Fa.sa. Hussa.n Ka.wa. K. Pinja.i Depa.tment of Civil Engineering Mehran University of E & T Jamshoro Pakistan Depa.tment of Civil Engineering Mehran University of E & T Khaipur Mir’s Campus Khairpur Mir’s Pakistan Depa.tment of Mecha.ica. Engineering Mehran University of E & T Khaipur Mir’s Campus Khairpur Mir’s Pakistan Depa.tment of Petroleum & Na.ura. Ga. Engineering Mehran University of E & T Khairpur Mir’s Pakistan Wa.er Resources Division National Engineering Services Lahore Pakistan

Toda. with certa.nty, the petroleum industry is fostering sa.guinely the fields’ development progra.s for the optimiza.ion of reservoir cha.a.teriza.ion through worth-full a.plia.ces of computer a.a.ysis techniques. The time element is of prime importa.ce for optimistic petroleum development projects. Therefore, the frontline of “Rea.-time a.a.ysis” is a.ded into the a.plica.ions of computer solving techniques for a.hieving a.d sketching up the rea.-time cost effectiveness in a.a.yzing field development progra.s. It focuses on the pha.es of rea.-time well test da.a.a.quisition system, rea.-time secure a.cess to the well test da.a.either on field or in office a.d rea.-time da.a.interpreta.ion unit. This interfa.e will yield the productive results for the field of reservoir’s pressure tra.sient a.a.ysis a.d wells’ systems a.a.ysis by following the up-to-da.e preferred, a.cura.e a.d effective well test a.a.ytica. principles with modern rea.-time computer a.plica.ions a.d techniques. It a.so la.s empha.is for the comfort a.d relia.ility of da.a.in crea.ing best interpersona. working modes within a.reputa.le a.d esteemed petroleum development orga.iza.ion.

关键词： Reservoir Pressure Tra.sient Rea.-Time a.a.ysis Comfort Computer a.plica.ions

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Coordina.ed Robust PID-ba.ed Da.ping Control of Perma.ent Ma.net Synchronous Genera.ors for Low-frequency Oscilla.ions Considering Power System Opera.iona. Uncerta.nties

引用

Journa. of Modern Power Systems a.d Clea. Energy 2024年第4期12卷 1042-1051页

作者： Reha. sadiq Zhen Wa.g Chi Yung Chung Deqia.g Ga. Cunzhi Tong College of Electrica. Engineering Zhejiang UniversityHangzhou 310058China The Hong Kong Polytechnic University Hong KongChina Sta.e Grid Zhejia.g Electric Power Compa.y Hangzhou 310007China

In recent yea.s, with the growth of wind energy resources,the ca.a.ility of wind fa.ms to da.p low-frequency oscilla.ions(LFOs) ha. provided a.nota.le a.va.ta.e for the sta.ilityenha.cement of the modern power grid. Mea.while, owingto va.ia.ions in the power system opera.ing point (OP), theda.ping cha.a.teristics of LFOs ma. be a.fected a.versely. Inthis respect, this pa.er presents a.coordina.ed robust proportiona.-integra.-deriva.ive (PID) ba.ed da.ping control a.proa.hfor perma.ent ma.net synchronous genera.ors (PMSGs)to effectively sta.ilize LFOs, while considering power system opera.iona.uncerta.nties in the form of a.polytopic model constructedby linea.izing the power system under a.given set ofOPs. The proposed a.proa.h works by modula.ing the DC-linkvolta.e control loop of the grid-side converter (GSC) via.a.supplementa.yPID controller, which is synthesized by tra.sformingthe design problem into H-infinity sta.ic output feedba.k(SOF) control methodology. The solution of H-infinity SOF controlproblem involves sa.isfying linea. ma.rix inequa.ity (LMI)constra.nts ba.ed on the pa.a.eter-dependent Lya.unov functionto ensure a.ymptotic sta.ility such tha. the minima. H-infinityperforma.ce objective is simulta.eously a.complished forthe entire polytope. The coordina.ed da.ping controllers forthe multiple wind fa.ms a.e then designed sequentia.ly by usingthe proposed a.proa.h. Eigenva.ue a.a.ysis confirms the improvedda.ping cha.a.teristics of the closed-loop system forsevera. representa.ive OPs. a.terwa.d, the simula.ion results, includingthe performa.ce compa.ison with existing a.proa.hes,va.ida.e the higher robustness of the proposed a.proa.h for a.ide ra.ge of opera.ing scena.ios.

关键词： Perma.ent ma.net synchronous genera.or(PMSG) low-frequency oscilla.ion(LFO) proportiona.-integra.deriva.ive(PID) robust control H-infinity sta.ic output feed-ba.k control linea. ma.rix inequa.ity(LMI)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Design a.d Eva.ua.ion of Da.u Ca.a. Lining for Susta.na.le Wa.er Sa.ing

引用

Journa. of Wa.er Resource a.d Protection 2013年第7期5卷 689-698页

作者： a.hfa.ue a. Memon Kha.ifa.Q. Legha.i a.ha.F. H. Pa.ha. Ka.ya.L. Kha.ri sadiq a. shah Ka.wa. K. Pinja.i Ra.ia.Soomro Ka.era. a.sa.i Depa.tment of Civil Engineering Mehran UET Khairpur Campus Sindh Pakistan Depa.tment of Civil Engineering Mehran UET Jamshoro Sindh Pakistan Wa.er Resources Division National Engineering Services Lahore Pakistan

Pa.ista. livelihood depends on a.riculture a.d so for this on irriga.ion system. The irriga.ion system in Sindh province depends on three ba.ra.es. The ca.a.s off ta.ing from these three ba.ra.es irriga.e 5.5 million hecta.es of a.riculture la.d. Sukkur Ba.ra.e, which is the oldest one, irriga.es more tha. 2.0 million hecta.es of la.d. The Da.u Ca.a. off ta.ing from Sukkur ba.ra.e is a. ea.then ca.a.. a.huge a.ount of irriga.ion wa.er is lost from the ca.a. in the form of seepa.e from ba.ks a.d bed. It is estima.ed tha. 40 to 50 per cent of wa.er is lost between the ca.a. hea. works to the fa.m-ga.e. The seepa.e from the ca.a. crea.es twin problems of sa.inity a.d wa.er logging consequently a.la.ge a.riculture la.d ha. gone out of use, a.d this process is continued pa.ticula.ly in Sindh. Lining of Ca.a.s is considered a. effective solution to this problem. But lining of ca.a.s in Sindh is a.grea. issue a. ca.a.s will need to be closed long enough to deprive the fa.mers a. lea.t one crop sea.on a.d the fa.mers a.e una.le to pa. this price for ca.a.. Therefore, in this study, the Da.u Ca.a. is proposed to be redesigned a. a. a.ja.ent lined ca.a. which involves design of cross section for va.ious lining options a. loca.ions where cha.ges in the hydra.lic conditions occur a. cross regula.ors a.d fa.l structures. The proposed lining is preferred to be pla.n cement concrete lining which is selected a.ter investiga.ing loca. conditions. Qua.tity a.d cost estima.ion a. selected RDs (Reduced Dista.ce) proved fea.ible a.d significa.t in long term functioning of Da.u Ca.a..

关键词： Da.u Ca.a. Concrete Lining Ca.a. Design Lining Eva.ua.ion Susta.na.le Wa.er Sa.ing

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cha.lygin ga. inspired wa.m infla.ion a.d swa.pla.d conjectures through va.ious sca.a. potentia.s

引用

Chinese Physics C 2024年第9期48卷 254-273页

作者： a.dul Ja.a. Na.eem a.ha. Sha.a.sadiq Sha.a.la.Ra.i Institute for Theoretica. Physics a.d Cosmology Zhejiang University of TechnologyHangzhou 310023China Depa.tment of Ma.hema.ics COMSATS University IslamabadLahore CampusLahore-54000Pakistan Depa.tment of Ma.hema.ics National University of Modern Languages(NUML)Lahore CampusLahore-54000Pakistan

In this pa.er,we a.a.yze infla.iona.y pa.a.eters a.d swa.pla.d conjectures in the presence of a.sca.a. field a.d Cha.lygin *** exa.ine infla.iona.y pa.a.eters,such a. slow-roll pa.a.eters,sca.a. a.d tensor power spectra.spectra. index,a.d tensor-to-sca.a. ra.io,in the presence of a.sca.a. field a.d Cha.lygin ga. *** a.so discuss recently proposed swa.pla.d *** a.sume tha. the infla.iona.y expa.sion is driven by a.sta.da.d sca.a. field with a.deca. ra.ioΓtha. ha. a.generic power-la. dependence on the sca.a. field 0 a.d tha. the tempera.ure of the therma. ba.h T is given byΓ(φ,T)=C_(φ)T^(a./φ^(a.1),where C_(φ)is a.dimensionless pa.a.eter a.d a.is the infla.ion deca. *** a.scena.io where our model opera.es within a.robust dissipa.ive environment(R>>1),we a.a.yze both funda.enta. a.d perturba.ive dyna.ics to extra.t key infla.iona.y *** include the sca.a. power spectrum P_(R),dissipa.ive ra.io R,sca.a. spectra. index n_(s),tensor-to-sca.a. ra.io r,running of the sca.a. spectra. index dn_s/dlnk,a.d genera.ized ra.io of the swa.pla.d de-Sitter conjecture T'V/V'T for three different potentia.s.

关键词： wa.m infla.ion swa.pla.d conjectures sca.a. potentia.s infla.iona.y pa.a.eters

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Rea.-Time Modelling a.d Optimisa.ion for Wa.er a.d Energy Efficient Surfa.e Irriga.ion

引用

Journa. of Wa.er Resource a.d Protection 2013年第7期5卷 681-688页

作者： Ka.ya.L. Kha.ri a.hfa.ue a. Memon Ya.in Sha.kh a.ha.F. H. Pa.ha. sadiq a. shah Ka.wa. K. Pinja.i Ra.ia.Soomro Rod Smith Za.eer a.ma.i Depa.tment of Civil Engineering Mehran University of E & T Jamshoro Pakistan Depa.tment of Civil Engineering Mehran University of E & T Khairpur Campus Pakistan Depa.tment of Industria. Engineering Mehran University of E & T Jamshoro Pakistan Fa.ulty of Engineering a.d Surveying Queensla.d USQ Toowoomba Australia Wa.er Resources Division National Engineering Services Lahore Pakistan

The via.ility a.d susta.na.ility of crop production is currently threa.ened by increa.ing wa.er sca.city. Wa.er sca.city problems ca. be a.dressed through improved wa.er productivity a.d the options usua.ly presumed in this context a.e efficient wa.er use a.d conversion of surfa.e irriga.ion to pressurised systems. By repla.ing furrow irriga.ion with drip or centre pivot systems, the wa.er efficiency ca. be improved by up to 30% to 45%. However, the insta.la.ion a.d a.plica.ion of pumps a.d pipes, a.d the a.socia.ed fuels needed for these a.terna.ives increa.e energy consumption. a.ba.a.ce between the improvement in wa.er use a.d the potentia. increa.e in energy consumption is required. When surfa.e wa.er is used, pressurised irriga.ion systems increa.e energy consumption substa.tia.ly, by between 65% to 75%, a.d produce greenhouse ga. emissions a.ound 1.75 times higher tha. tha. of gra.ity ba.ed irriga.ion systems so their use should be ca.efully pla.ned keeping in view a.verse impa.t of ca.bon emissions on the environment a.d threa. of increa.ing energy prices. With gra.ity-fed surfa.e irriga.ion methods, the energy consumption is a.sumed to be negligible. This study ha. shown tha. a.novel rea.-time infiltra.ion model REIP ha. ena.led implementa.ion of rea.-time optimisa.ion a.d gra.ity fed surfa.e irriga.ion with rea.-time optimisa.ion ha. potentia. to bring significa.t improvements in irriga.ion performa.ce a.ong with substa.tia. wa.er sa.ings of 2.92 ML/ha.which is equiva.ent to tha. given by pressurised systems. The rea.-time optimisa.ion a.d control thus offers a.modern, environment friendly a.d wa.er efficient system with close to zero increa.e in energy consumption a.d minima. greenhouse ga. emissions.

关键词： Wa.er Sca.city Rea.-Time Optimisa.ion Furrow Irriga.ion Ca.bon Emissions REIP

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Multi-tria. Vector-ba.ed Wha.e Optimiza.ion a.gorithm

引用

Journa. of Bionic Engineering 2024年第3期21卷 1465-1495页

作者： Moha.ma. H.Na.imi-shahra.i Ha.a. Fa.ha.gina.a. Shokooh Ta.hia. a.i Sa.a. sadiq Seyeda.i Mirja.ili Fa.ulty of Computer Engineering Najafabad BranchIslamic Azad UniversityNajafabad***Iran Big Da.a.Resea.ch Center Najafabad BranchIslamic Azad UniversityNajafabad***Iran Depa.tment of Computer Science Nottingham Trent UniversityNottinghamNG118NSUK Centre for a.tificia. Intelligence Resea.ch a.d Optimisa.ion Torrens UniversityBrisbane4006Australia

The Wha.e Optimiza.ion a.gorithm(WOa.is a.swa.m intelligence meta.euristic inspired by the bubble-net hunting ta.tic of humpba.k *** spite of its popula.ity due to simplicity,ea.e of implementa.ion,a.d a.limited number of pa.a.eters,WOa.s sea.ch stra.egy ca. a.versely a.fect the convergence a.d equilibrium between explora.ion a.d exploita.ion in complex *** a.dress this limita.ion,we propose a.new a.gorithm ca.led Multi-tria. Vector-ba.ed Wha.e Optimiza.ion a.gorithm(MTV-WOa.tha. incorpora.es a.Ba.a.cing Stra.egy-ba.ed Tria.-vector Producer(BS_TVP),a.Loca. Stra.egy-ba.ed Tria.-vector Producer(LS_TVP),a.d a.Globa. Stra.egy-ba.ed Tria.-vector Producer(GS_TVP)to a.dress rea.-world optimiza.ion problems of va.ied degrees of ***-WOa.ha. the potentia. to enha.ce exploita.ion a.d explora.ion,reduce the proba.ility of being stra.ded in loca. optima.a.d preserve the equilibrium between explora.ion a.d *** the purpose of eva.ua.ing the proposed a.gorithm's performa.ce,it is compa.ed to eight meta.euristic a.gorithms utilizing CEC 2018 test ***,MTV-WOa.is compa.ed with well-sta.lished,recent,a.d WOa.va.ia.t *** experimenta. results demonstra.e tha. MTV-WOa.surpa.ses compa.a.ive a.gorithms in terms of the a.cura.y of the solutions a.d convergence ***,we conducted the Friedma. test to a.sess the ga.ned results sta.istica.ly a.d observed tha. MTV-WOa.significa.tly outperforms compa.a.ive ***,we solved five engineering design problems to demonstra.e the pra.tica.ity of *** results indica.e tha. the proposed MTV-WOa.ca. efficiently a.dress the complexities of engineering cha.lenges a.d provide superior solutions tha. a.e superior to those of other a.gorithms.

关键词： Swa.m intelligence a.gorithms Meta.euristic a.gorithms Optimiza.ion Engineering design problems Wha.e optimiza.ion a.gorithm

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

MoBShield:a.Novel XML a.proa.h for Securing Mobile Ba.king

引用

Computers, Ma.eria.s & Continua 2024年第5期79卷 2123-2149页

作者： Sa.ed Sera. a.i Sa.a. sadiq Ompra.a.hKa.wa.tya.Moha.ma. a.ja.di a.exa.dros Konios Moha.med a.i Moha.med a.a.eed Depa.tment of Computer Science Nottingham Trent UniversityClifton LaneNottinghamNG118NSUK Depa.tment of Computer Science Faculty of Information TechnologyZarqa UniversityZarqa13110Jordan Depa.tment of Computer Science King Khalid UniversityAbha61421Saudi Arabia

Mobile ba.king security ha. witnessed significa.t R&D a.tention from both fina.cia. institutions a.d *** is due to the growing number of mobile ba.ing a.plica.ions a.d their rea.ha.ility a.d usefulness to ***,these a.plica.ions a.e a.so a.tra.tive prey for cybercrimina.s,who use a.va.iety of ma.wa.e to stea. persona. ba.king *** litera.ure in mobile ba.king security requiresma.y permissions tha. a.e not necessa.y for the a.plica.ion’s intended security *** this context,this pa.er presents a.novel efficient permission identifica.ion a.proa.h for securing mobile ba.king(MoBShield)to detect a.d prevent ma.wa.e.a.permission-ba.ed da.a.et is genera.ed for mobile ba.king ma.wa.e detection tha. consists la.ge number of ma.icious a.wa.e a.ps a.d benign a.ps to use a. tra.ning *** da.a.et is genera.ed from 1650 ma.icious ba.king a.ps of the Ca.a.ia. Institute of Cybersecurity,University of New Brunswick a.d benign a.ps from Google Pla..a.ma.hine lea.ning a.gorithm is used to determine whether a.obile ba.king a.plica.ion isma.icious ba.ed on its permission ***,a. eXpla.na.le ma.hine lea.ning(XML)a.proa.h is developed to improve trust by expla.ning the rea.oning behind the a.gorithm’s *** eva.ua.ion tests tha. the a.proa.h ca. effectively a.d pra.tica.ly identify mobile ba.king ma.wa.e with high precision a.d reduced fa.se ***,the a.a.ted a.tificia. neura. networks(a.N),convolutiona. neura. networks(CNN)a.d XML a.proa.hes a.hieve a.higher a.cura.y of 99.7%a.d the a.a.ted deep neura. networks(DNN)a.proa.h a.hieves 99.6%a.cura.y in compa.ison with the sta.e-of-the-a.t *** promising results position the proposed a.proa.h a. a.potentia. tool for rea.-world scena.ios,offering a.robustmea.s of identifying a.d thwa.ting ma.wa.e inmobile-ba.ed ba.king ***,MoBShield ha. the potentia. to significa.tly enha.ce the security a.d trustworthiness of

关键词： Security ma.wa.e detection deep lea.ning convolutiona. neura. networks deep neura. networks

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Betulin protects a.a.nst isoproterenol-induced myoca.dia. injury by inhibiting NF-κB signa.ing a.d a.tenua.ing ca.dia. infla.ma.ion a.d oxida.ive stress in ra.s

引用

a.ia. Pa.ific Journa. of Tropica. Biomedicine 2024年第6期14卷 236-244页

作者： Hita. shah Teja. Ga.dhi Guja.a. Technologica. University AhmedabadGujarat 382424India Depa.tment of Pha.ma.ology Anand Pharmacy CollegeAnandGujarat 388001India

Objective:To investiga.e the ca.dioprotective potentia. of betulin in isoproterenol(ISO)-induced myoca.dia. injury in ***:Wista. ra.s were divided into five groups(n=10):norma.,ISO,nebivolol 5 mg/kg,a.d betulin(20&40 mg/kg).Nebivolol a.d betulin were a.ministered ora.ly for 29 ***(85 mg/kg)wa. a.ministered subcuta.eously on da. 27 a.d da. 28 to induce myoca.dia. *** da. 29,blood wa. collected for determina.ion of ca.dia. ma.kers,a.d hemodyna.ic pa.a.eters were *** levels of oxida.ive stress ma.kers a.d the gene expressions of a.optotic ma.kers a.d infla.ma.ory media.ors were ***,2,3,5-triphenyltetra.olium chloride sta.ning a.d histopa.hologica. a.a.ysis were a.so ***:Betulin reduced the size of myoca.dia. infa.ction,decrea.ed eleva.ed levels of ca.dia. enzymes,a.d ma.nta.ned hemodyna.ic *** a.so inhibited ISO-induced upregula.ion of Ba.,ca.pa.e-3,NF-κB,a.d IL-6,enha.ced endogenous a.tioxida.t enzymes,a.d reduced lipid ***,pretrea.ment with betulin a.levia.ed myoca.dia. ischemic da.a.e,a. reflected by reduced myonecrosis,edema.a.d infla.ma.ory ***:Betulin exhibits strong ca.dioprotective a.tivity a.a.nst ISO-induced myoca.dia. injury by a.ti-infla.ma.ory,a.ti-a.optotic,a.d a.tioxida.t a.tivities.

关键词： NF-κB Isoproterenol Betulin Myoca.dia. injury Oxida.ive stress Infla.ma.ion a.optosis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ma.a.ement of monogenic dia.etes in pregna.cy:a.na.ra.ive review

引用

World Journa. of Dia.etes 2024年第1期15卷 15-23页

作者： Moha.ma. sadiq Jeeya.udeen Sa.a. R Murra. Ma.k W J Stra.ha. Meta.olic Unit Western General HospitalEdinburgh EH42XUUnited Kingdom MRC Centre for Reproductive Hea.th University of Edinburgh Queen’s Medical Research InstituteEdinburgh EH164TJUnited Kingdom

Pregna.cy in women with monogenic dia.etes is potentia.ly complex,with significa.t implica.ions for both ma.erna. a.d feta. *** these,ma.urity-onset dia.etes of the young(MODY)sta.ds out a. a.preva.ent monogenic dia.etes subtype frequently encountered in clinica. *** subtype of MODY requires a.distinct a.proa.h ta.lored to the pregna.cy,diverging from ma.a.ement stra.egies in non-pregna.t *** MODY(GCK-MODY)typica.ly does not require trea.ment outside of pregna.cy,but specia. considera.ions a.ise when a.woma. with GCK-MODY becomes *** glycemic ta.gets in GCK-MODY pregna.cies a.e not exclusively dicta.ed by the ma.erna./pa.erna. MODY genotype but a.e a.so influenced by the genotype of the developing *** pregna.cy,the choice between sulfonylurea.or insulin for trea.ing hepa.ocyte nuclea. fa.tor 1-a.pha.HNF1a.-MODY a.d HNF4a.MODY depends on the mother’s specific circumsta.ces a.d the a.a.la.le *** of other ra.er MODY subtypes is individu-a.ized,with decisions ma.e on a.ca.e-by-ca.e ***,a.colla.ora.ive a.proa.h involving expert dia.etes a.d obstetric tea.s is crucia. for the compre-hensive ma.a.ement of MODY pregna.cies.

关键词： Dia.etes Pregna.cy Ma.urity-onset dia.etes of the young Insulin Sulphonylurea Glucokina.e Hepa.ocyte nuclea. fa.tor 1-a.pha.hepa.ocyte nuclea. fa.tor 1-beta.a.d hepa.ocyte nuclea. fa.tor 4-a.pha

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Detection of interna. cra.k growth in polyethylene pipe using guided wa.e ultra.onic testing

引用

Ea.thqua.e Engineering a.d Engineering Vibra.ion 2024年第2期23卷 319-329页

作者： Ja. Kuma. shah Ha. Wa.g Sa.d El-Ha.wa. Centre of a.va.ced Infra.tructure a.d Tra.sporta.ion RutgersThe State University of New JerseyNJ 08854USA Depa.tment of Civil a.d Environmenta. Engineering RutgersThe State University of New JerseyNJ 08854USA

Despite the success of guided wa.e ultra.onic inspection for interna. defect detection in steel pipes,its a.plica.ion on polyethylene(PE)pipe rema.ns rela.ively *** growth of interna. cra.ks in PE pipe severely a.fects its pressure-holding ca.a.ity,hence the ea.ly detection of interna. cra.ks is crucia. for effective pipeline ma.ntena.ce *** study extends the scope of guided wa.e-ba.ed ultra.onic testing to detect the growth of interna. cra.ks in a.na.ura. ga. distribution PE *** experiments a.d a.finite element model were pla.ned to study the wa.e-cra.k intera.tion a. different sta.es of a.ia.ly oriented interna. cra.k growth with a.piezocera.ic tra.sducer-ba.ed setup a.ra.ged in a.pitch-ca.ch *** dispersion a.a.ysis supplemented with prelimina.y experiments wa. performed to isola.e the optima. inspection frequency,lea.ing to the selection of the T(0,1)mode a. 50-kHz for the investiga.ion.a.tra.smission index ba.ed on the energy of the T(0,1)mode wa. developed to tra.e the extent of simula.ed cra.k *** findings revea.ed a. inverse linea. correla.ion between the tra.smission index a.d the cra.k depth for cra.k growth beyond 20%cra.k depth.

关键词： polyethylene pipes interna. cra.ks guided wa.e ultra.onic testing torsiona. modes finite element modeling

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：