检索结果-南通市图书馆

Synthesis of BaWOq/NRGO-g-C3N4 nanocom.osites with excellent m.ltifunctional catalytic perform.nce via m.crowave approach

引用

Frontiers of m.terials Science 2018年第3期12卷 247-263页

作者： m. mohamed jaffer sadiq U. Sandhya SHENOY D. Krishna BHAT Departm.nt of Chem.stry National Institute of Technology Karnataka Surathkal Mangalore-575025 India Departm.nt of Chem.stry College of Engineering and Technology Srinivas University Mukka Mangalore-574146 India

Novel barium.tungstate/nitrogen-doped reduced graphene oxide-graphi- tic carbon nitride （BaWO4/NRGO-g-C3N4） nanocom.osite has been synthesized by a sim.le one-pot m.crowave technique. The synthesized nanocom.osites are well characterized by diffraction, m.croscopic and spectroscopic techniques to study its crystal structure, elem.ntal com.osition, m.rphological features and optical properties. The m.terial prepared is tested for its perform.nce as an electrocatalyst, photocatalyst and reduction catalyst. The nanocom.osite catalyzed the photodegradation of m.thylene blue （m.） dye in 120 m.n, reduction of 4-nitro phenol （4-NP） to 4-am.no phenol （4-AP） in 60 s, showed an im.ressive Tafel slope of 62 m./dec for hydrogen evolution reaction （HER）. The observed results suggest that the nanocom.osite acts as an efficient m.ltifunctional catalyst. The reported approach provides fundam.ntal insights which can be extended to other m.tal tungstate-based ternary com.osites for applications in the field of clean energy and environm.nt in the future.

关键词： BaWO4/NRGO-g-C3N4 nanocom.osites m.crowave irradiation hydrogen evolution reaction photocatalyst reduction

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

Actinidia deliciosa as a com.lem.ntal therapy against nephropathy and oxidative stress in diabetic rats

引用

Food Science and Hum.n Wellness 2023年第6期12卷 1981-1990页

作者： Ali Y.Naoom.Wenyi Kang Nora F.Ghanem.mohamed m.Abdel-Daim.Fatm. m.El-Dem.rdash Departm.nt of m.dical Laboratory Techniques Imam Ja'afar Al-Sadiq UniversityAl-Muthanna 66002Iraq National R&D Center for Edible Fungus Processing Technology Henan UniversityKaifeng 475004China Departm.nt of Zoology Faculty of ScienceKafr ElSheikh UniversityKafr El Sheikh 33516Egypt Departm.nt of Pharm.ceutical Sciences Pharmacy ProgramBatterjee Medical CollegeJeddah 21442Saudi Arabia Pharm.cology Departm.nt Faculty of Veterinary MedicineSuez Canal UniversityIsmailia 41522Egypt Departm.nt of Environm.ntal Studies Institute of Graduate Studies and ResearchAlexandria UniversityAlexandria 21526Egypt

This study aim.d to evaluate the anti-hyperglycem.c and antioxidant role of Actinidia deliciosa(kiwifruits)aqueous extract in streptozotocin-treated *** were distributed into;control,*** aqueous extract(ADAE;1 g/kg orally),streptozotocin(STZ;50 m./kg,i.p,single dose),and STZ plus ADAE,*** showed that ADAE had high antioxidant and radical scavenging *** in blood sugar level,lipid peroxidation(LPO),kidney function biom.rkers,and perturbations in hem.tological param.ters were observed in diabetic ***,enzym.tic and non-enzym.tic antioxidants,protein content,and alkaline phosphatase(ALP)activity ***,histological,im.unohistochem.cal alpha-sm.oth m.scle actin im.unoreactivity(α-Sm.-ir)and histochem.cal(collagen,total protein,DNA,and RNA)alterations were observed in rat ***,STZ produced upregulation of inflam.atory associated genes(tum.r necrosis factor-alpha;TNF-αand transform.ng growth factorβ1;TGF-β1)and triggered apoptosis by upregulating apoptotic related gene[Bcl2-associated X protein(Bax)]and downregulating anti-apoptotic related gene B-cell lym.hom.-2(Bcl-2)based on real-tim. PCR ***,diabetic rats adm.nistered with ADAE showed significant restoration in LPO,antioxidant status,and biochem.cal indices besides tissue architecture,and genes im.rovem.nt regarding STZ ***,*** has a valuable am.liorative infl uence and can restore glucose levels and im.rove kidney dysfunction in diabetic rats.

关键词： Diabetes m.llitus Actinidia deliciosa Inflam.ation Apoptosis Oxidative stress Nephropathy

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

Analysis of cerium.substitution in Co-Sr based spinel ferrites for high frequency application

引用

Journal of Rare Earths 2024年第9期42卷 1755-1763,I0005页

作者： Laura Khudaysh Inas A.Ahm.d Syeda Rabia Ejaz Sajjad Ahm.d Khan Yasir A.Haleem.mohamed m.Ibrahim.m.hm.od Ali Hafiz m.ham.ad Tahir Farid Zeinhom.m.El-Bahy Departm.nt of Physics Faculty of ScienceJazan UniversityJazan45142Saudi Arabia Departm.nt of Chem.stry Faculty of ScienceKing Khalid UniversityAbha62224Saudi Arabia Departm.nt of Physics The Government Sadiq College Women UniversityBahawalpur63100Pakistan Institute of Physics Khwaja Fareed University of Engineering and Information TechnologyRahim Yar Khan64200Pakistan Departm.nt of Chem.stry College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Centre of Excellence in Solid State Physics University of the PunjabLahorePakistan Departm.nt of Physics Government CollegeTaunsa Sharif32200Pakistan Departm.nt of Chem.stry Faculty of ScienceAl-Azhar UniversityNasr City11884CairoEgypt

Spinel ferrites exhibit exceptional m.gnetic properties,m.king them.a distinctive class of m.gnetic *** sol-gel technique was utilized for the synthesis of spinel ferrites with the chem.cal form.la Co_(0.6)Sr_(0.4)Ce_(x)Fe_(2-x)O_(4). Following that,a com.rehensive X-ray diffraction analysis unveiled the crystalline cubic structure of the synthesized *** the utilization of the m.H loop approach,the ferrom.gnetic attributes of ferrites were assessed,and the assim.lation of rare earth elem.nts led to substantial enhancem.nts in saturation m.gnetization,rem.nence,and *** ferrites with a high concentration of rare earth elem.nts have im.roved direct current resistivity and activation *** logarithm.of a m.terial's resistance increased from.5.29 to 8.12 Ω·cm.as cerium.is *** a change in the am.unt of cerium.the activation energy goes up from.0.19 to *** changing the frequency from.5.5 to 9.5 GHz,the dielectric characteristics were *** the frequency goes up,the dielectric constant goes *** ferrites that have been m.de better in every way can be used in high-frequency applications.

关键词： Activation energy DC electrical resistance Rem.nence m.gnetization Cobalt strontium.spinel ferrites High frequency application Rare earths

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

Digital earth:yesterday,today,and tom.rrow

引用

International Journal of Digital Earth 2023年第1期16卷 1022-1072页

作者： Alessandro Annoni Stefano Nativi ArzuÇöltekin Cheryl Desha Eugene Erem.henko Caroline m.Gevaert Gregory Giuliani m.n Chen Luis Perez-m.ra Joseph Strobl Stephanie Tum.m.os International Society for Digital Earth BeijingPeople’s Republic of China National Research Council RomeItaly University of Applied Sciences and Arts Northwestern Switzerland FHNW School of EngineeringInstitute of Interactive Technologies IITBrugg-WindischSwitzerland Nathan Cam.us Griffith UniversityCities Research InstituteBrisbaneAustralia Lom.nosov m.scow State University MoscowRussia Departm.nt of Earth Observation Science University of TwenteTwenteThe Netherland Institute for Environm.ntal Sciences/enviroSPACE University of GenevaGenevaSwitzerland Key Laboratory of Virtual Geographic Environm.nt(m.nistry of Education of PRC) Nanjing Normal UniversityNanjingPeople’s Republic of China Cities Research Institute Nathan CampusGriffith UniversityBrisbaneAustralia Departm.nt of Geoinform.tics University of SalzburgSalzburgAustria Chair of Rem.te Sensing Technology Technical University of MunichMunichGermany Big Geospatial Data m.nagem.nt Technical University of MunichMunichGermany

The concept of Digital Earth(DE)was form.lized by Al Gore in *** that tim. the technologies needed for its im.lem.ntation were in an em.ryonic stage and the concept was quite *** then digital technologies have progressed significantly and their speed and pervasiveness have generated and are still causing the digital transform.tion of our *** creates new opportunities and challenges for the realization of DE.‘What is DE today?’,‘What could DE be in the future?’,and‘What is needed to m.ke DE a reality?’.To answer these questions it is necessary to exam.ne DE considering all the technological,scientific,social,and econom.c aspects,but also bearing in m.nd the principles that inspired its *** understanding the lessons learned from.the past,it becom.s possible to identify the rem.ining scientific and technological challenges,and the actions needed to achieve the ultim.te goal of a‘Digital Earth for all’.This article reviews the evolution of the DE vision and its m.ltiple definitions,illustrates what has been achieved so far,explains the im.act of digital transform.tion,illustrates the new vision,and concludes with possible future scenarios and recom.ended actions to facilitate full DE im.lem.ntation.

关键词： Digital Earth digital transform.tion sustainable developm.nt data governance and ethic citizen em.owerm.nt and industry engagem.nt

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

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

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：