检索结果-南通市图书馆

Proba.ilistic Globa. Ma.imum Power Point Tra.king a.gorithm for Continuously Va.ying Pa.tia. Sha.ing Conditions on a.tonomous PV Systems

引用

Energy a.d Power Engineering 2024年第1期16卷 21-42页

作者： kha Ba. khanh Ca. Vincent Boitier La.S-CNRS University of Toulouse Toulouse France

a.photovolta.c (PV) string with multiple modules with bypa.s diodes frequently deployed on a.va.iety of a.tonomous PV systems ma. present multiple power pea.s under uneven sha.ing. For optima. sola. ha.vesting, there is a.need for a.control schema.to force the PV string to opera.e a. globa. ma.imum power point (GMPP). While a.lot of tra.king methods ha.e been proposed in the litera.ure, they a.e usua.ly complex a.d do not fully ta.e a.va.ta.e of the a.a.la.le cha.a.teristics of the PV a.ra.. This work highlights how the volta.e a. opera.ing point a.d the forwa.d volta.e of the bypa.s diode a.e considered to design a.globa. ma.imum power point tra.king (GMPPT) a.gorithm with a.very limited globa. sea.ch pha.e ca.led Fa.t GMPPT. This a.gorithm successfully tra.ks GMPP between 94% a.d 98% of the time under a.theoretica. eva.ua.ion. It is then compa.ed a.a.nst Perturb a.d Observe, Deterministic Pa.ticle Swa.m Optimiza.ion, a.d Grey Wolf Optimiza.ion under a.sequence of irra.ia.ce steps a. well a. a.power-over-volta.e cha.a.teristics profile tha. mimics the electrica. cha.a.teristics of a.PV string under va.ying pa.tia. sha.ing conditions. Overa.l, the simula.ion with the sequence of irra.ia.ce steps shows tha. while Fa.t GMPPT does not ha.e the best convergence time, it ha. a. excellent convergence ra.e a. well a. ca.ses the lea.t a.ount of power loss during the globa. sea.ch pha.e. Experimenta. test under va.ying pa.tia. sha.ing conditions shows tha. while the GMPPT proposa. is simple a.d lightweight, it is very performa.t under a.wide ra.ge of dyna.ica.ly va.ying pa.tia. sha.ing conditions a.d boa.ts the best energy efficiency (94.74%) out of the 4 tested a.gorithms.

关键词： Photovolta.c PV Globa. Ma.imum Power Point Tra.king GMPPT Fa.t Va.ying Pa.tia. Sha.ing Conditions a.tonomous PV Systems GMPPT Review

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

Developmenta. dependence for functiona. eye regrowth in Xenopus la.vis

引用

Neura. Regenera.ion Resea.ch 2018年第10期13卷 1735-1737页

作者： Cindy X.kha Kelly a.-Sun Tseng School of Life Sciences University of Nevada

Introduction：a.key cha.lenge in designing tissue repa.r stra.egies is knowing whether a.d how developmenta. mecha.isms a.e used for successful repa.r of ma.ure/a.ult *** it is known tha. developmenta. components a.e used in repa.r,it rema.ns mostly unclea. which ones a.e required a.d whether they a.t simila.ly a. during *** issue is further complica.ed by the fa.t tha. it is difficult.

关键词： Developmenta. dependence for functiona. eye regrowth in Xenopus la.vis Figure RI

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

a.Compa.a.ive Study on Environmenta. Degra.a.ion of Sunda.ba.s due to Huma. Induced Ca.ses（2008-2018）

A Comparative Study on Environmental Degradation of Sundarba...

引用

作者： Sudipto Sa.ol kha 西南交通大学

学位级别：硕士

来源：

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

a.Deep Lea.ning Model of Tra.fic Signs in Pa.ora.ic Ima.es Detection

引用

Intelligent a.toma.ion & Soft Computing 2023年第7期37卷 401-418页

作者： kha Tu Huynh Thi Phuong Linh Le Muha.ma. a.if Thien khai Tra. Interna.iona. University Ho Chi Minh CityVietnam-Vietnam National UniversityHo Chi Minh City700000Vietnam Depa.tment of Computer Science The Superior UniversityLahorePakistan Ho Chi Minh City University of Foreign La.gua.es a.d Informa.ion Technology Ho Chi Minh City700000Vietnam

To pursue the idea. of a.sa.e high-tech society in a.time when tra.fic a.cidents a.e frequent,the tra.fic signs detection system ha. become one of the necessa.y topics in recent yea.s a.d in the *** ultima.e goa. of this resea.ch is to identify a.d cla.sify the types of tra.fic signs in a.pa.ora.ic *** a.complish this goa.,the pa.er proposes a.new model for tra.fic sign detection ba.ed on the Convolutiona. Neura. Network for com-prehensive tra.fic sign cla.sifica.ion a.d Ma.k Region-ba.ed Convolutiona. Neura. Networks(R-CNN)implementa.ion for identifying a.d extra.ting signs in pa.ora.ic *** a.gmenta.ion a.d norma.iza.ion of the ima.es a.e a.so a.plied to a.sist in cla.sifying better even if old tra.fic signs a.e degra.ed,a.d considera.ly minimize the ra.es of discovering the extra.*** proposed model is tested on both the testing da.a.et a.d the a.tua. ima.es a.d gets 94.5%of the correct signs recognition ra.e,the cla.sifica.ion ra.e of those signs discovered wa. 99.41%a.d the ra.e of fa.se signs wa. only a.ound 0.11.

关键词： Deep lea.ning convolutiona. neura. network Ma.k R-CNN tra.fic signs detection

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

Buckling a.a.ysis of FG Porous Trunca.ed Conica. Shells Resting on Ela.tic Founda.ions in the Fra.ework of the Shea. Deforma.ion Theory

引用

a.va.ces in a.plied Ma.hema.ics a.d Mecha.ics 2022年第1期14卷 218-247页

作者： Le kha Hoa.Bui Gia.Phi Do Qua.g Cha. Da.g Va. Hieu Milita.y a.a.emy of Logistics HanoiVietnam Depa.tment of Technica. Funda.enta. University of Transport Technology54 Trieu Khuc9 Thanh XuanHanoiVietnam Depa.tment of Mecha.ica. Engineering a.d Mecha.ronics PHENIKAA UniversityHanoi 12116Vietnam PHENIKa. Resea.ch a.d Technology Institute(PRa.I) A&A Green Phoenix Group JSCNo.167 Hoang NganTrung HoaCau GiayHanoi 11313Vietnam Tha.nguyen University of Technology ThainguyenVietnam

In this a.ticle,a. a.a.ytica. method is proposed to a.a.yze of the linea. buckling beha.ior of the FG porous trunca.ed conica. shells subjected to a.uniform a.ia. compressive loa. a.d resting on the Pa.terna. ela.tic *** ma.eria. properties including Young’s modulus,shea. modulus a.d density a.e a.sumed to va.y in the thickness *** types of FG porous distributions including symmetric porosity distribution,non-symmetric porosity a.d uniform porosity distribution a.e *** governing equa.ions of the FG porous trunca.ed conica. shells a.e obta.ned by using the first-order shea. deforma.ion theory(FSDT).With the help of the Ga.erkin method,the expressions for critica. buckling loa.s a.e obta.ned in closed *** relia.ility of the obta.ned results is verified by compa.ing the present solutions with the published ***,the numerica. results show the effects of shell cha.a.teristics,porosity distribution,porosity coefficient,a.d ela.tic founda.ion on the critica. buckling loa..

关键词： Buckling trunca.ed conica. shells first order shea. deforma.ion theory porous ma.eria.s ela.tic founda.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

a.Deep Tra.h Cla.sifica.ion Model on Ra.pberry Pi 4

引用

Intelligent a.toma.ion & Soft Computing 2023年第2期35卷 2479-2491页

作者： Thien khai Tra. kha Tu Huynh Da.-Nhuong Le Muha.ma. a.if Hoa.Minh Dinh Ho Chi Minh City University of Foreign La.gua.es a.d Informa.ion Technology Ho Chi Minh City700000Vietnam Interna.iona. University Ho Chi Minh CityVietnam-Vietnam National UniversityHo Chi Minh City70000Vietnam Fa.ulty of Informa.ion Technology Haiphong UniversityHaiphong180000Vietnam Depa.tment of Computer Science a.d Informa.ion Technology University of LahoreLahorePakistan

Environmenta. pollution ha. ha. substa.tia. impa.ts on huma. life,a.d tra.h is one of the ma.n sources of such pollution in most *** cla.si-ﬁca.ion from a.collection of tra.h ima.es ca. limit the overloa.ing of ga.ba.e dis-posa. systems a.d efﬁciently promote recycling a.tivities;thus,development of such a.cla.siﬁca.ion system is topica. a.d *** pa.er proposed a. effective tra.h cla.siﬁca.ion system tha. relies on a.cla.siﬁca.ion module embedded in a.ha.d-wa.e setup to cla.sify tra.h in rea. *** ima.e da.a.et isﬁrst a.gmented to enha.ce the ima.es before cla.sifying them a. either inorga.ic or orga.ic *** deep lea.ning–ba.ed ResNet-50 model,a. improved version of the ResNet model,is used to cla.sify tra.h from the da.a.et of tra.h *** experimenta. results,which a.e tested both on the da.a.et a.d in rea. time,show tha. ResNet-50 ha. a. a.era.e a.cura.y of 96%,higher tha. tha. of rela.ed ***,integra.ing the cla.siﬁca.ion module into a.Ra.pberry Pi computer,which con-trolled the tra.h bin slide so tha. ga.ba.e fell into the a.propria.e bin for inorga.ic or orga.ic wa.te,crea.ed a.complete tra.h cla.siﬁca.ion *** proves the efﬁciency a.d high a.plica.ility of the proposed system.

关键词： Tra.h cla.siﬁca.ion ResNet ra.pberry pi internet of things(IoT) deep lea.ning

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

Results of Testing Ma.ze Hybrids on La.ds Shifting from Rice-Growing a.ea. of Less Efficiency in the Mekong Delta

引用

Journa. of a.ricultura. Science a.d Technology(B) 2015年第4期5卷 241-246页

作者： Le Quy kha Institute of a.ricultura. Sciences for Southern Vietna. 121 Nguyen Binh Khiem Street District 1 Ho Chi Minh City Vietnam

Foreca.ters predict tha. by 2020 there will be 4.5 or 5 million tons per a.num ma.ze supply deficiency in Vietna.. a. a.result of this projection, the government responded by shifting 80,000 ha.of low-efficiency rice production a.ea. into ma.ze production （2014-2015） a.d this a.ea.of production for ma.ze is expected to increa.e to 150,000 ha.by 2016-2020. Nevertheless, not a.l commercia. ma.ze hybrids could be suita.le for rice-growing la.d in the Mekong Delta.a.d a.na.iona. project of hybrid ma.ze development for Mekong Delta.ha. been conducted since ea.ly 2014. In the project, yield tria.s of 20 ma.ze hybrids, sourced from Vietna.ese institutions a.d the priva.e sector including Syngenta.（NK67） a.d Deka.b （DK9901）, were sown in Dong Tha., Ha. Gia.g a.d Long a. provinces situa.ed in the Mekong Delta. in minor a.id sulpha.e soils with a.pH of 5.0-5.5. The tria. included three replica.ions in a. a.pha.la.tice design conducted during spring-summer in 2014. The hybrids flowered a. 50-52 d a.ter pla.ting a.d physiologica.ly ma.ured between 93-97 d a.ter pla.ting. This suggested they would be suita.le for cropping systems, which wa. comprised of three sea.ons per yea.. To determine which hybrid is best suited for the region, resea.chers eva.ua.ed yield a.d ea. cha.a.teristics. The a.era.e yield of the genotypes a.ross loca.ions wa. 52.03, 54.92 a.d 57.60 quinta.s/ha. respectively, a.d the herita.ility of genotypes in ea.h loca.ion wa. 0.51, 0.81 a.d 0.61, respectively. The mea. yield of DK9901 wa. 58.19 quinta.s/ha. ra.king the 7th a.ong 20 hybrids, a.d NK67 wa. 47.58 quinta.s/ha. ra.king the 19th. The gra.d mea. wa. 54.92 quinta.s/ha.a.d herita.ility for a.l genotypes wa. 0.79. The highest yield wa. produced by the Southern seed compa.y hybrid SSC474 （69.39 quinta.s/ha., which yielded significa.tly more ma.ze tha. DK9901 （58.19 quinta.s/ha. a. P 〈 0.05, followed by VS71 from Na.iona. Ma.ze Resea.ch Institute （NMRI） a. 63.52 quinta.s/ha. a.d LCH9a.from NMRI a. 63.39 quin

关键词： Ma.ze (Zea.ma.s L.) hybrid Mekong Delta rice-growing la.d yield tria.s.

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

Penta.idium-Ca.a.yzed Direct a.sembly of Vicina. a.l-Ca.bon Qua.erna.y Stereocenters through C(sp^(3))–C(sp^(3))Bond Forma.ion

引用

CCS Chemistry 2021年第10期3卷 2192-2200页

作者： Xu Ba. Yifa. Fa. Tua.-Khoa.kha Richmond Lee Choon Wee Kee Zhiyong Jia.g Choon-Hong Ta. Interna.iona. Scientific a.d Technologica. Coopera.ion Ba.e of Chira. Chemistry Henan UniversityKaifeng 475004 Division of Chemistry a.d Biologica. Chemistry Nanyang Technological UniversitySingapore 637371 School of Chemistry a.d Molecula. Bioscience University of WollongongWollongongNSW 2522 Molecula. Horizons University of WollongongWollongongNSW 2522 Process&Ca.a.ysis Resea.ch Institute of Chemical and Engineering SciencesSingapore 627899

The stereoselective construction of vicina. a.l-ca.bon qua.erna.y stereocenters ha. long been a.formida.le synthetic *** a.ymmetric coupling of a.tertia.y ca.bon nucleophile with a.tertia.y ca.bon electrophile is themost stra.ghtforwa.d a.proa.h,but it is sterica.ly a.d energetica.ly ***,we describe a.ca.a.ytic a.ymmetric substitution,where ra.emic tertia.y bromides coupled directly with ra.emic seconda.y or tertia.y ca.ba.ion.

关键词： ion-pa.red ca.a.yst a.y mmetric substitu-tion SN2 substitution SN2X substitution a.l-ca.bon qua.erna.y stere ocenters

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

应用压力恢复测试法检测水和气的推进前沿

引用

油气田开发工程译丛 1992年第12期 13-17页

作者：赵钧 kha.,a.W

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

创新能力对公共组织运营风险的影响研究：中介的调节模型

创新能力对公共组织运营风险的影响研究：中介的调节模型

引用

作者： kha Len Lek 中国科学技术大学

学位级别：硕士

公共组织中多次出现影响巨大的操作风险管理失败案例,让人们对公共组织理论中的操作风险管理产生了质疑。这些重复的操作风险失败案例源自于人为操作,属于内部流程和系统,以及外部事件引起的范畴。针对这一问题,本论文分析了创新能力、... 详细信息

公共组织中多次出现影响巨大的操作风险管理失败案例,让人们对公共组织理论中的操作风险管理产生了质疑。这些重复的操作风险失败案例源自于人为操作,属于内部流程和系统,以及外部事件引起的范畴。针对这一问题,本论文分析了创新能力、领导包容行为、感知到的工作团队多样性以及工作控制点因素之间的关系,同时考察这些因素对操作风险管理的影响。本论文采用横断式调查法,对中国大陆公共组织人员进行数据抽样调查。本文的理论假设已通过459个有效案例得到验证。本文发现,创新能力对操作风险管理有正面的影响。领导包容行为和感知到的工作团队多样性的介入进一步加强了操作风险管理。此外,工作控制点对领导包容行为、感知到的工作团队多样性和操作风险管理之间的关系具有正面影响。类似于之前的研究,本论文同样支持公共组织理论通过战略上定位创新型员工在保持高度包容的工作环境里所带来的操作风险管理的预期结果,从而进一步避免创新风险的能力。本研究主要关注在创新能力对操作风险管理的直接影响。本文展示了领导包容行为、感知到的工作团队多样性以及工作控制点在加强对公共组织操作风险管理的创新能力所起到的积极作用。

关键词：创新能力包容性领导行为过程控制点工作团队的多样性风控管理

来源：

同方学位论文库评论

在线全文

同方学位论文库

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：