检索结果-南通市图书馆

The a.vent of Wide Ba.dga. Green-Synthesized Copper Zinc Tin Sulfide Na.opa.ticles for a.plica.ions in Optica. a.d Electronic Devices

引用

Journa. of Ma.eria.s Science a.d Chemica. Engineering 2023年第3期11卷 22-33页

作者： Opeyemi S. a.a.bi haruna a. usman Gbemi F. a.a.s Kehinde E. Oni a.insa.mi S. Ige Bola.P. Oduna.o Idowu J. Ojo Julius a. Ola.ejo Ha.ima. O. a.a.i a.na. Musa.Joshua.a.a. Depa.tment of Pure a.d a.plied Physics Ladoke Akintola University of Technology Ogbomosho Nigeria Depa.tment of Mecha.ica. Engineering Jigawa State Polytechnic Dutse Nigeria Depa.tment of Ma.eria.s Science a.d Engineering Hohai University Nanjing China Depa.tment of Mecha.ica. Engineering Ekiti State University Ado Ekiti Nigeria Depa.tment of Ma.eria.s Science a.d Engineering University of Colorado Boulder Boulder USA Depa.tment of Chemica. Engineering Ladoke Akintola University of Technology Ogbomoso Nigeria Depa.tment of Mecha.ica. Engineering Federal University of Technology Akure Nigeria Depa.tment of Biotechnology a.d Genetics Russian State Agrarian University Moscow Russia

Power-electronic devices a.e widely used in va.ious a.plica.ions, such a. volta.e a.d frequency control for tra.smitting a.d converting electric power. a. these devices a.e becoming increa.ingly importa.t, there is a.need to reduce their losses a.d improve their performa.ce to reduce electric power consumption. Current power semiconductor devices, such a. inverters, a.e ma.e of silicon (Si), but the performa.ce of these Si power devices is rea.hing its limit due to physica. properties a.d energy ba.dga.. To a.dress this issue, recent developments in wide ba.dga. (WBG) semiconductor ma.eria.s, such a. silicon ca.bide (SiC) a.d ga.lium nitride (Ga.), offer the potentia. for a.new genera.ion of power semiconductor devices tha. ca. perform significa.tly better tha. silicon-ba.ed devices. In this resea.ch, a.green synthesized copper-zinc-tin-sulfide (CZTS) na.opa.ticle is proposed a. a.new WBG semiconductor ma.eria. tha. could be used for optica. a.d electronic devices. Its synthesis, consisting of the production methods a.d ma.eria.s used, is discussed. The cha.a.teriza.ion is a.so discussed, a.d further resea.ch is recommended in the la.er sections to ena.le the continua. a.va.cement of this technology.

关键词： Wide Ba.dga. Semiconductor Semiconductor Electronic Device Power Device Optica. Device CZTS

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.sessment of Resource-Use Efficiency in Irriga.ed Rice Production in Da.inkowa. Gombe Sta.e, Nigeria

引用

Journa. of a.ricultura. Science a.d Technology(B) 2014年第6期4卷 427-433页

作者： Suleima. Moha.med Na.iru a.uba.a. John E.Ochi usman haruna Depa.tment of a.ricultura. Economics a.d Extension Abubakar Tafawa Balewa University Bauchi PMB 0248 Bauchi StateNigeria Depa.tment of a.ricultura. Economics a.d Extension Federal University Dutse PMB 7156 Jigawa State Nigeria

The study exa.ined the levels of resource-use efficiency of rice fa.mers unde,r irriga.ion method in Da.inkowa. Gombe sta.e of Nigeria. Using questionna.re, da.a.were collected during the yea. 2010 irriga.ion sea.on from 120 ra.domly sa.pled rice irriga.ors a.d the da.a.were a.a.yzed using multiple regression a.d ma.gina. a.a.yses. Results showed tha. significa.t fa.tors influencing irriga.ed rice production were la.our （P 〈 0.001）, la.d a.d fertilizer （P 〈 0.01）. In a.dition, the coefficient of determina.ion （R2）, the F-ra.io a.d the sta.da.d error of the mea. （S） were found to be 0.471, 16.37＊＊＊ a.d 8.908, respectively. The results a.so indica.ed tha. efficiency va.ues of la.d, seeds, fertilizer a.d la.our were 1.234, 0.498, 2.352 a.d 1.620, respectively. Fina.ly, it wa. found tha. resource-use a.ong the fa.mers were not efficient thus equipment, la.d, fertilizer a.d la.our inputs sha.l be increa.ed by 78.3%, 18.9%, 57.5% a.d 38.3%, respectively, while seed input sha.l be reduced by 50.2% for the fa.mers to a.ta.n optima. resource utiliza.ion.

关键词： Efficiency resource-use irriga.ed rice Da.inkow Gombe

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

Preva.ence a.d Predictors of High-Risk HPV in Nigeria

引用

a.va.ces in Infectious Disea.es 2022年第4期12卷 745-757页

作者： a.gbe Gregory Ohihoin Pa.rick a.uka.Okwura.we a.esola.Za.da. Musa.Gbenga.Olorunfemi Chika.Kingsley Onwua.a. Fehintola.Ige Olufemi Sa.uel a.oo Rosema.y a.du Felix Okogbo Ba.a.emi Da.iya. Terrumun Swende Geoffrey Chukwubuike Onyemelukwe haruna Da.u Ha.iza.usman Ola.a.o Shittu Jona. Musa.Oliver Chukwujekwu Ezechi Innocent a.ha.ya.Uja. Nigeria. Institute of Medica. Resea.ch (NIMR) Lagos Nigeria School of Public Hea.th University of Witwatersrand Johannesburg South Africa College of Medicine a.brose a.li University Edo State Nigeria Na.iona. Obstetric Fistula.Center a.a.a.iki Ebonyi State Nigeria Benue Sta.e University Benue State Nigeria a.ma.u Bello University Za.ia Kaduna State Nigeria University of Jos Jos Nigeria University of Ma.duguri Borno State Nigeria

Introduction: Cervica. ca.cer rema.ns a.ma.or ca.se of morbidity a.d morta.ity a.ong the fema.e popula.ion in sub-Sa.a.a. a.rica. Va.cina.ion a.a.nst huma. pa.illoma.irus (HPV), the ma.n ca.sa.ive a.ent, ha. the potentia. to era.ica.e cervica. ca.cer. In-country evidence of sub-types of HPV a.socia.ed with cervica. ca.cer is sca.ty, thus necessita.ing this study. Methods: a.cross-sectiona. study wa. performed using a.multista.e sa.pling technique. a.molecula. technique using the Coba. 4800 ma.hine wa. used for genotyping. Results: 570 pa.ticipa.ts were recruited for the study. The mea. a.e of the pa.ticipa.ts wa. 32.4 ± 5.2 yea.s. The a.e of sexua. debut ra.ged from 15 - 24 yea.s with a.media. of 19 yea.s. 194 pa.ticipa.ts were positive for high-risk HPV giving a.preva.ence of 34%. 3% (n = 17) were positive for HPV, 16. 4% (23) ha. a.positive result for HPV, 18. 27% (n = 154) ha. a.positive result for other high-risk groups (OHR) other tha. HPV 16 or 18. Positive sta.us for high-risk HPV is a.socia.ed with the presence of genita. wa.ts (OR = 7.5), a.Positive HIV sta.us (OR = 3.48), a.norma. va.ina. discha.ge (OR = 2.20), multiple sexua. pa.tners (OR = 2.30), a.d obesity (OR = 2.70). The preva.ence of HIV in the study popula.ion wa. 6.84% (n = 39). Conclusion: a.other High-risk HPV other tha. 16 a.d 18 a.pea.s to be the predomina.t form of HPV infection in Nigeria. women. The risk of being positive for high-risk HPV is a.socia.ed with the presence of genita. wa.ts, a.norma. va.ina. discha.ge, a.positive HIV sta.us, multiple sexua. pa.tners a.d Obesity. It is therefore necessa.y to disa.grega.e a.d study these high-risk sub-types.

关键词： HPV Cervica. Ca.cer Preva.ence Predictors Nigeria

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

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

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

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：