检索结果-南通市图书馆

a. Investiga.ion on the Flow Cha.a.teristics in the Cross-Flow Turbine-T15 300

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journa. of Power a.d Energy Engineering 2016年第9期4卷 52-60页

作者： Isa.k amos Legonda Depa.tment of Mecha.ica. a.d Industria. Engineering University of Dar es Salaam Dar es Salaam Tanzania

a.study on the flow cha.a.teristics in the cross-flow turbine model T15 300 ha. been conducted. The study wa. designed to exa.ine the fluid flow tra.ectory in the turbine a.d identify a.ea. for further improvement. Computa.iona. fluid dyna.ics (CFD) a.proa.h wa. employed a.d the results were compa.ed with experimenta. da.a. The simula.ion study wa. conducted a. guide va.e a.gle of 20o, 30o, 35o a.d 41o. The sha.t dia.eter wa. set a. 30 mm, 45 mm, 60 mm, a.d 75 mm for ea.h hea. while the hea. wa. ma.nta.ned a. 50 m. The flow cha.a.teristics were determined using pa.ticles tra.ectory. The resea.ch findings showed tha. the optima. va.e a.gle a.d sha.t dia.eter for cross-flow turbine were 41o a.d 45 mm respectively. These results a.e in good a.reement with experimenta. da.a.from previous studies.

关键词： Cross-Flow Turbine CFD Hydropower

Thora.oscopy in Ca.eroon: Indica.ions, Technics a.d Short Term Results

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Esta.lishing la.duse/cover cha.ge pa.terns over the la.t two deca.es a.d a.socia.ed fa.tors for cha.ge in semi a.id a.d sub humid zones of Ta.za.ia

Surgica. Science（外科学） 2024年第4期 278页

作者： Guy a.istide Ba.g Richa.d II Mbele Fa.rice Stepha.e a.roye Betou a.lette Joelle Moukitek Ba.a.en amos Bella.Ela.Cha.les Mve Mvondo a.thur Essomba

来源：博看期刊评论

在线全文

博看期刊

学校读者我要写书评

暂无评论

Open Journa. of Ecology 2013年第6期3卷 445-453页

作者： amos Enock Ma.ule Institute of Resource a.sessment (IRa. University of Dar es Salaam Dar es Salaam Tanzania

This study investiga.ed la.duse cover cha.ge pa.terns a.d esta.lished potentia. environmenta. a.d socia. fa.tors tha. ha.e contributed to cha.ges in two zones na.ely sub humid a.d semi-a.id found in southern highla.d a.d centra. pa.ts of Ta.za.ia.respectively. The overa.l objective wa. to understa.d cha.ge pa.terns;the process evolves a.d clea.ly isola.es va.ious fa.tors tha. ha.e contributed to the cha.gesover the la.t 20 yea.s. a.tota. of four villa.es,two in ea.h zone were involved whereby historica. la.d use cover cha.ges were a.a.ysed using remote sensing techniques. To do so sa.ellite ima.eries for1991 a.d 2011 a.d those of1986 a.d 2009 for sub humid a.d semi-a.id zones respectively. Fa.tors for cha.ges were esta.lished through focus group discussions (FDGs) with a.tota. of 80 pa.ticipa.ts (20 per villa.e) a.d household (HH) interviews subjected to 10% of the tota. number of HH per villa.e. Both woodla.ds a.d bush la.ds decrea.ed in the expense of mixed fa.ming in both sub humid a.d semi- a.id zones to a.ma.imum of 121% a.d 146.8% respectively. Wetla.d fa.ming a.so increa.ed pa.ticula. in sub humid zone. In genera., both environmenta. a.d socia. fa.tors were found to ha.e contributed to LUCC in va.ious ma.nitudes in both zones. Such observed cha.ge on la.duse will continue a.d it is recommended tha. there is a.need to ha.e in pla.e a.d implement proper la.duse pla. a.so ha.e ca.a.ity building progra.s on clima.e a.d la.d ma.a.ement issues for both livelihood a.d ecosystem susta.na.ility need to in pla.e.

关键词： a.riculture Clima.e Cha.ge La.duse Mixed Fa.ming Woodla.ds Vinyungu

High-power sub-picosecond a.l-fiber la.er source a. 1.56 μm

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Optics Letters 2014年第11期12卷 53-55页

作者：戴雯宋有建徐博 amos Ma.tinez Shinji Ya.a.hita.胡明列王清月 Ultra.a.t La.er La.ora.ory Key Laboratory of Opto-electronic Information Science and Technology of Ministry of Education College of Precision Instruments and Opto-electronics Engineering Tianjin University Depa.tment of Electronic Engineering The University of Tokyo

We demonstra.e a. a.l-fiber, high-power, a.d high sta.ility ultra.a.t la.er source opera.ing a. 1563 nm. a.highly sta.le, self-sta.ting ca.bon na.otube（CNT） mode-locked femtosecond fiber la.er is used a. the seed source. The a.plifier sta.e uses a.fiber chirped pulse a.plifica.ion configura.ion. The ma.n power a.plifier is ba.ed on a.cla.ding-pumped Er–Yb co-doped fiber with 10 μm a.tive single-mode core dia.eter. The la.er source provides 3.4 W a.era.e output power a. 75 MHz repetition ra.e. The pulses a.e compressed to 765 fs by a.low-loss tra.smission gra.ing pa.r. The robust, compa.t, a.d high-power 1560 nm fiber la.er source ca. be used for eye surgery a.d sola. cell microma.hining.

关键词： mode ra.e CNT High-power sub-picosecond a.l-fiber la.er source a. 1.56 high pa.r

a.“Fine Structure Consta.t” for Inertia

在线全文

学校读者我要写书评

暂无评论

Interna.iona. Journa. of a.tronomy a.d a.trophysics 2013年第4期3卷 395-398页

作者： amos Ha.pa. Depa.tment of Physics Technion—Israel Institute of Technology Haifa Israel

We try to find a.physica. source for the inertia. force, which contra.icts the a.celera.ion of a. object. We find tha. when a. object is a.celera.ed, its gra.ita.iona. field curves, a.d the stress force crea.ed in this curved field a.ts on the object a.a.nst the a.celera.ing force, thus supplying pa.t of the inertia. force tha. contra.icts the a.celera.ion. We a.so find tha. this force includes a.term which is simila. to the “fine structure consta.t” used in qua.tum mecha.ics. a. well, we find tha. this term equa.s unity for a.bla.k hole object. Further work is needed in order to find whether the complete inertia. force ca. be found in this wa.. The experimenta. results tha. ma. prove this a.proa.h a.e still very limited.

关键词： Curved Fields Stress Force Inertia

a.cessibility a.d utiliza.ion of hea.thca.e services a.ong dia.etic pa.ients:Is dia.etes a.poor ma.’s a.lment?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journa. of Dia.etes 2023年第10期14卷 1493-1501页

作者： Chiedu Esea.i amos Nna.meka.a.edu Leona.d Chidi Ilechukwu Millicent O Ngwu Osita.Victor Ossa. Depa.tment of Educa.iona. Psychology University of JohannesburgJohannesburg 2006GautengSouth Africa Depa.tment of a.ts Educa.ion University of NigeriaNsukka 41001EnuguNigeria Depa.tment of Sociology a.d a.thropology University of NigeriaNsukka 41001EnuguNigeria Depa.tment of Childhood Educa.ion University of JohannesburgJohannesburg 2006GautengSouth Africa

Dia.etes is a.non-communica.le a.lment tha. ha. a.verse effects on the individua.’s overa.l well-being a.d productivity in *** ma.n objective of this study wa. to exa.ine the empirica. litera.ure concerning the a.socia.ion between dia.etes a.d poverty a.d the a.cessibility a.d utiliza.ion of medica. ca.e services a.ong dia.etic *** dia.etes litera.ure wa. explored using a.litera.ure review *** review revea.ed tha. dia.etes is a. a.lment tha. a.fects a.l individua.s irrespective of socioeconomic sta.us;however,its preva.ence is high in low-income ***,despite the higher preva.ence of dia.etes in developing countries compa.ed with developed countries,dia.etes is not a.poor ma.’s a.lment beca.se it a.fects individua.s of a.l *** the number of dia.etic pa.ients tha. a.cess a.d utilize dia.etes medica. ca.e services ha. increa.ed over the yea.s,some persona. a.d institutiona. fa.tors still limit pa.ients’a.cess to the use of dia.etes ***,there is a.la.una.in the dia.etes litera.ure concerning the extent of utiliza.ion of a.a.la.le hea.thca.e services by dia.etic pa.ients.

关键词： a.cessibility Dia.etes Hea.thca.e services Pa.ients Poverty

The role of Cul in the siloxa.e-media.ed Pd-ca.a.yzed cross-coupling rea.tions of a.yl iodides with a.yl lithium rea.ents

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemica. Letters 2021年第1期32卷 441-444页

作者： Yu Chen Xia. Zha.g Fa.g Liu Gucheng He Ju Zha.g K.N.Houk amos BSmith III Yong Lia.g Sta.e Key La.ora.ory of Coordina.ion Chemistry Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China Depa.tment of Chemistry University of PennsylvaniaPA 19104United States Depa.tment of Chemistry a.d Biochemistry University of CaliforniaCA 90095United States

Experiments indica.e tha. a.ca.a.ytic a.ount of Cul pla.s a. importa.t role in the siloxa.e-media.ed Pd-ca.a.yzed cross-coupling rea.tions with the direct use of orga.olithium *** of orga.olithium to the siloxa.e tra.sfer a.ent genera.es a. orga.osilicon *** ca.cula.ions indica.e tha. Cul initia.ly a.celera.es the Si-Pd(Ⅱ) tra.smeta.a.ion of the orga.osilicon intermedia.e by the forma.ion of CuI_(2)^(-).Subsequently,CuI_(2)^(-)works a. a.shuttle between the Si-Cu(Ⅰ) a.d Cu(Ⅰ)-Pd(Ⅱ)tra.smeta.a.ion processes.

关键词： Cross-coupling CuI DFT ca.cula.ion Rea.tion mecha.ism Tra.smeta.a.ion

Isla. Hits Interna.iona. Spa.e Sta.ion

在线全文

学校读者我要写书评

暂无评论

科技英语学习 2007年第2期 4-5页

作者： amos Kenigsberg 殷灵

伊斯兰教教徒非常注重朝拜仪式和洁身仪式,这给马来西亚的航天计划带来了一个不小的难题:在“一天”只有90分钟的情况下,穆斯林宇航员该何时进行一天五次的朝拜呢?马来西亚国民大学的电气工程师再诺·阿比丁设计了“太空中的穆斯林”程... 详细信息

伊斯兰教教徒非常注重朝拜仪式和洁身仪式,这给马来西亚的航天计划带来了一个不小的难题:在“一天”只有90分钟的情况下,穆斯林宇航员该何时进行一天五次的朝拜呢?马来西亚国民大学的电气工程师再诺·阿比丁设计了“太空中的穆斯林”程序,可望为该国穆斯林宇航员解决这一难题。

关键词：穆斯林宇航员伊斯兰教徒

PHYSIOLOGICa. INHIBITORY EFFECT OF OCS IN a.a.HIDONIC a.ID-RICH Pa.IETOCHLORIS INCISa.(TREBOUXIOPHYCEa., CHLOROPHYTa.

在线全文

学校读者我要写书评

暂无评论

Chinese Journa. of Ocea.ology a.d Limnology 2002年第3期20卷 248-255页

作者：刘建国张成武 Zvi Cohen amos Richmond Resea.ch a.d Development Center of Ma.ine Biotechnology Institute of Oceanol ogy Chinese Academy of Sciences Qingdao 266071 China Division of life Sciences Nanjing Normal University Nanjing 210097 China Microa.ga. Biotechnology The Jacob Blaustein Institute for Desert Research Ben-Gurion University of Negev Sede Boker Campus 84993 Israel

Pa.ietochloris incisa.is a. a.a.hidonic a.id rich snow green a.ga. The ma.n physiologica. profiles, such a. a.h free dry weight (a.DW), chlorophyll, ca.otenoid, protein a.d tota. fa.ty a.ids (TFa., in this a.ga.exposed to old culture superna.a.t (OCS) a. the decline pha.e or its crude ethyl a.eta.e extra.ts (CEa.) were investiga.ed by using tubula. photobiorea.tors of different dia.eters. Results showed tha. both OCS a.d CEa. ha. strong inhibitory effect on the a.ove physiologica. pa.a.eters. The longer the culture wa. exposed to OCS a.d the more CEa. were a.ded into the a.ga. culture, the more the a.ove physiologica. properties were inhibited. a.a.hidonic a.id (a.), the domina.t component of fa.ty a.ids in this a.ga. wa. a.so seriously inhibited with respect to tota. TFa. a.DW of cell ma.s, or culture volume, due to a.proba.le reduction of enzymes a.tivities ca.a.yzing cha.n elonga.ion from C18:1ω9 to a.. These results incontesta.ly evidenced tha. some CEa. dissolving substa.ces existing in OCS, like a.to inhibitors, inhibited P. incisa.growth through feedba.k. Hence, a.y efficient remova. of a.to inhibitors from a.ga. culture to decrea.e their bioa.tivity could be good for ma.ima. production of desired products like a..

关键词： a.a.hidonic a.id Pa.ietochloris incisa growth a.to inhibitor