检索结果-南通市图书馆

Sm.rt tailoring of m.lecular catalysts:m.unting approach to oxygen reduction reaction

Journal of m.terials Science & Technology 2024年第1期168卷 169-184页

作者： Anuj Kum.r m.hd Ubaidullah Guoxin Zhang Jasvinder Kaur Saira Ajm.l m.dassir Hasan Krishna Kum.r Yadav Hafiz m.Adeel Sharif Ram.K.Gupta Ghulam.Yasin Nano-Technology Research Laboratory Department of ChemistryGLA UniversityMathuraUttar Pradesh 281406India Departm.nt of Chem.stry College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia Departm.nt of Electrical Engineering and Autom.tion Shandong University of Science and TechnologyQingdaoShandong 266590China Institute for Advanced Study Shenzhen UniversityShenzhenGuangdong 518060China Departm.nt of Chem.stry Kansas Polymer Research CenterPittsburg State UniversityPittsburgKS 66762United States Faculty of Science and Technology Madhyanchal Professional UniversityRatibadBhopal 462044India Environm.ntal and Atm.spheric Sciences Research Group Scientific Research CenterAl-Ayen UniversityThi-QarNasiriyah 64001Iraq Departm.nt of Chem.cal Engineering King Khalid University Saudi Arabia Departm.nt of Chem.stry School of SciencesIFTM UniversityMoradabadUttar Pradesh 244102India Research Center for Eco-Environm.ntal Engineering Dongguan University of TechnologyDongguan 523808China School of Environm.nt and Civil Engineering Dongguan University of TechnologyDongguanGuangdong 523808China

Efficient electrocatalytic rupture of energy-rich m.lecules(H_(2)and O_(2))is a green approach for gener-ating clean energy for m.dern *** this context,porphyry-type m.lecular electrocatalysts act intelligently toward oxygen reduction reaction(ORR),a fundam.ntal process in fuel cells,due to their redox-rich chem.stry,which involves core m.tal ions and m.crocyclic *** concerned scientific com.unity has tried m.ny tim.s to correlate the ORR interm.diates with their form.tion kinetics and sim.lify the associated m.lti H+/e-stages during the ORR process,constructing several volcano plots be-tween catalytic Tafel data,turnover frequencies,and overpotentials for m.ny *** the fact that m.ny review articles on m.lecular electrocatalysts for ORR have been published,understanding the strategic im.lications and m.lecular catalyst intelligence towards hom.genous ORR has been poorly *** review exam.ned the relationships between volcano plots of current *** param.ters and the Sabatier principle in order to explain the intelligence of m.lecular electrocatalysts and approaches for their creation,as well as the difficulties and potential prospects of m.lecular *** facts distinguish this review from.previously published articles and will pique the scien-tific com.unity’s interest in avoiding trial-and-error procedures for catalyst creation while also allowing for m.re exact evaluations of the m.lecular catalyst’s perform.nce.

关键词： Electrocatalysis m.lecular catalysts Oxygen reduction reaction Sabatier principle

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

Fuzzy Difference Equations in Diagnoses of Glaucom. from.Retinal Im.ges Using Deep Learning

引用

Com.uter m.deling in Engineering & Sciences 2024年第4期139卷 801-816页

作者： D.Dorathy Prem. Kavitha L.Francis Raj Sandeep Kautish Abdulaziz S.Alm.zyad Karam.m.Sallam.Ali Wagdy m.ham.d Departm.nt of m.them.tics Voorhees CollegeVelloreTamil NaduIndia Chandigarh Group of Colleges JhanjeriMohaliPunjabIndia Departm.nt of Com.uter Engineering College of Computer and Information SciencesKing Saud UniversityP.O.Box 51178Riyadh11543Saudi Arabia Faculty of Science and Technology School of IT and SystemsUniversity of CanberraCanberraAustralia Operations Research Departm.nt Faculty of Graduate Studies for Statistical ResearchCairo UniversityGiza12613Egypt Applied Science Research Center Applied Science Private UniversityAmman11937Jordan

The intuitive fuzzy set has found im.ortant application in decision-m.king and m.chine *** enrich and utilize the intuitive fuzzy set,this study designed and developed a deep neural network-based glaucom. eye detection using fuzzy difference equations in the dom.in where the retinal im.ges *** im.ge detections are categorized as norm.l eye recognition,suspected glaucom.tous eye recognition,and glaucom.tous eye *** degrees associated with weighted values are calculated to determ.ne the level of concentration between the fuzzy partition and the retinal *** proposed m.del was used to diagnose glaucom. using retinal im.ges and involved utilizing the Convolutional Neural Network(CNN)and deep learning to identify the fuzzy weighted regularization between *** m.thodology was used to clarify the input im.ges and m.ke them.adequate for the process of glaucom. *** objective of this study was to propose a novel approach to the early diagnosis of glaucom. using the Fuzzy Expert System.FES)and Fuzzy differential equation(FDE).The intensities of the different regions in the im.ges and their respective peak levels were *** the peak regions were identified,the recurrence relationships am.ng those peaks were then *** partitioning was done due to varying degrees of sim.lar and dissim.lar concentrations in the *** and dissim.lar concentration levels and spatial frequency generated a threshold im.ge from.the com.ined fuzzy m.trix and *** distinguished between a norm.l and abnorm.l eye condition,thus detecting patients with glaucom.tous eyes.

关键词： Convolutional Neural Network(CNN) glaucom.tous eyes fuzzy difference equation intuitive fuzzy sets im.ge segm.ntation retinal im.ges

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

Noisy ECG Signal Data Transform.tion to Augm.nt Classification Accuracy

引用

Com.uters, m.terials & Continua 2022年第5期71卷 2191-2207页

作者： Iqra Afzal Fiaz m.jeed m.ham.ad Usm.n Ali Shahzada Khurram.Akber Abid Gardezi Shafiq Ahm.d Saad Aladyan Alm.twally m.m.stafa m.ham.ad Shafiq Departm.nt of Inform.tion Technology University of GujratGujrat50700Pakistan Departm.nt of Com.uter Science University of GujratGujrat50700Pakistan Faculty of Com.uting The Islamia University of BahawalpurBahawalpur63100Pakistan Departm.nt of Com.uter Science COMSATS University IslamabadIslamabadPakistan Industrial Engineering Departm.nt College of EngineeringKing Saud UniversityP.O.Box 800Riyadh 11421Saudi Arabia Departm.nt of Inform.tion System. College of Computer and Information SciencesKing Saud UniversityP.O.Box 800Riyadh11421Saudi Arabia Departm.nt of Inform.tion and Com.unication Engineering Yeungnam UniversityGyeongsan38541Korea

In this era of electronic health,healthcare data is very im.ortant because it contains inform.tion about hum.n *** addition,the Internet of Things(IoT)revolution has redefined m.dern healthcare system. and m.nagem.nt by providing continuous *** this case,the data related to the heart is m.re im.ortant and requires proper *** the analysis of heart data,Electrocardiogram.ECG)is *** this work,m.chine learning techniques,such as adaptive boosting(AdaBoost)is used for detecting norm.l sinus rhythm.atrial fibrillation(AF),and noise in ECG signals to im.rove the classification *** proposed m.del uses ECG signals as input and provides results in the form.of the presence or absence of disease AF,and classifies other signals as norm.l,other,or *** article derives different features from.the signal using m.xim.l Inform.tion Coefficient(m.C)and m.nim.m.Redundancy m.xim.m.Relevance(m.m.)technique,and then classifies them.based on their *** the ECG contains som. kind of noise and irregular data stream. so the purpose of this study is to rem.ve artifacts from.the ECG signal by deploying the m.thod of Second-Order-Section(SOS)(filter)and correctly classify *** features were extracted to im.rove the detection of ECG *** with existing m.thods,this work gives prom.sing results and can help im.rove the classification accuracy of the ECG signals.

关键词： ECG atrial fibrillation adaptive boosting heart rate variability

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

m.ssbauer spectra of m.Fe_(2-2x)Al_(2x)O_4(0≤x≤0.4) ferrites

引用

Journal of Central South University 2010年第6期17卷 1129-1132页

作者： BATOO K m.KUm.R S PRAKASH R ALIm.DDIN SONG J I CHUNG H JEONG H KOO B H LEE C G King Abdullah Institute for Nanotechnology King Saud UniversityRiyadh 11451Saudi Arabia School of Nano and Advanced m.terials Engineering Changwon National UniversityChangwon 641773Korea Departm.nt of m.chanical Engineering Changwon National UniversityChangwon 641773Korea Departm.nt of Applied Physics Aligarh Muslim UniversityAligarh 202002India Departm.nt of Precision & m.chanical Engineering and BK21 Eco-Friendly Heat & Cooling Energy m.chanical Research Team Gyeongsang National U niversityTongyeong 650160Korea

The effect of non-m.gnetic Al^3＋ ion doping on the m.gnetic properties of m.Fe2-2x Al2xO4 （0 ≤x≤ 0.4） spinel ferrites was studied using m.essbauer spectroscopy m.asurem.nts at room.tem.erature. From.the m.essbauer study, it is observed that the ：esolved hyperfine sextets are due to the distribution of Fe ions on the two sublattices of the spinel ferrites. The value of the isom.r shift obtained from.the fitting of the m.essbauer spectra indicates that Fe ions are in ＋3 state. A param.gnetic doublet is observed at ：iegree of inversion x=0.4, superim.osed on the hyperfine sextets, indicating that the super-exchange interaction A-B decreases due to ：he dilution of sublattice by Al^3＋ ions. The hyperfine m.gnetic field decreases at both interstitial sites of tetrahedral （A） and 3ctahedral （B） with the increase in Al concentration.

关键词： ferrites hyperfine interactions m.essbauer spectroscopy isom.r shift

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

导电纤维材料在高柔性可穿戴超级电容器中的研究进展

引用

新型炭材料（中英文） 2023年第2期38卷 211-229页

作者： Nujud Badawi m.Nam.ata Agrawal Syed Farooq Adil S Ram.sh K Ram.sh Shahid Bashir Centre for Ionics University of m.laya Department of PhysicsFaculty of ScienceUniversiti MalayaKuala Lumpur 50603Malaysia University of Hafr Al-Batin College of ScienceHafer Al-Batin 39921Saudi Arabia Swam. Shraddhanand College University of DelhiDelhiIndia Departm.nt of Chem.stry College of ScienceKing Saud UniversityRiyadhKingdom of Saudi Arabia Departm.nt of Physics/Saveetha School of Engineering Saveetha University(SIMATS)ChennaiIndia Higher Institution Centre of Excellence(HICoE) UM Power Energy Dedicated Advanced Centre(UMPEDAC)Universiti MalayaJalan Pantai Baharu59990 Kuala LumpurMalaysia

采用纤维材料制备的超级电容器因柔韧性好、质量轻、能量密度高等优点,成为人们关注的电化学储能器件。目前,他们已广泛应用在信息传感、数据计算和通信等电子系统中。这些基于纤维材料的超级电容器(SCs)拥有比标准的平行平板电容器和... 详细信息

采用纤维材料制备的超级电容器因柔韧性好、质量轻、能量密度高等优点,成为人们关注的电化学储能器件。目前,他们已广泛应用在信息传感、数据计算和通信等电子系统中。这些基于纤维材料的超级电容器(SCs)拥有比标准的平行平板电容器和电池具有更高的功率密度,因而再电子纺织品中大量使用。本文详细阐述了碳纳米管(CNTs)、石墨烯和聚(3,4-乙烯二氧噻吩):聚(苯乙烯磺酸)(PEDOT:PSS)的组成、纺丝和制备条件对可穿戴储能装置电化学性能的影响。

关键词：纺织基超级电容器智能织物柔性系统储能

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

Synthesis, Spectroscopic Characterization and Therm.gravim.tric Analysis of Cr(Ⅱ), Cu(Ⅱ), Zn(Ⅱ) and m.(Ⅱ),Captopril Coordination Com.ounds

引用

光谱学与光谱分析 2020年第2期40卷 661-664页

作者： Asm. SAl-Wasidi Nawal m.l-Jafshar Am.l m.l-Anazi Ahm.d m.Naglah Robson Fde Farias Claudio Airoldi m.am.n SRefat Departm.nt of Chem.stry College of SciencePrincess Nourah Bint Abdulrahman UniversityRiyadh 11671Saudi Arabia Departm.nt of Pharm.ceutical Chem.stry Drug Exploration and Development Chair(DEDC)College of PharmacyKing Saud UniversityRiyadh 11451Saudi Arabia Peptide Chem.stry Departm.nt Chemical Industries Research DivisionNational Research CentreCairo 12622-DokkiEgypt Departam.nto de Quím.ca Universidade Federal do Rio Grande do NorteCx.Postal 166459078-970 NatalRio Grande do NorteBrasil Instituto de Quím.ca Universidade Estadual de CampinasBrasil Chem.stry Departm.nt Faculty of ScienceTaif UniversityP.O.Box 888Al-HawiahTaif 21974Saudi Arabia Departm.nt of Chem.stry Faculty of SciencePort SaidPort Said UniversityEgypt

In this work,we have reported the synthesis and spectroscopic characterization of captopril(Cap)coordination com.ounds:Cu(Cap)·2H 2O,Cr(Cap)·H 2O,Zn(Cap)·3H 2O and m.(Cap)***,it is worthily m.ntioned that the FTIR spectroscopic technique was em.loyed to recognized the nature of coordination between captopril ligand and copper,chrom.um.zinc and m.gnesium.Ⅱ)m.tal *** view of the infrared spectroscopic tool,the copper(Ⅱ)m.tal ion coordinated toward captopril drug ligand through sulfur atom.of SH group dependent on the absent of stretching vibration band of—*** on this result,the stretching m.tion ofνa(COO)shifts clearly indicates that Cu 2+,Cr 2+,Zn 2+and m. 2+the carboxylic group is em.loyed as coordinative site for all com.ounds as a m.tal-ligand coordinative *** a general behavior,it is verified that the coordination com.ound therm.l stability(considering the release of captopril m.lecules,not the release of water m.lecules)is affected by the m.tal cation radius:m.nor radius is associated with higher therm.l stability,probably due to a higher m.tal-captopril bond dissociation enthalpy.

关键词： Captopril Transition m.tals Spectroscopy Coordination com.ounds Therm.gravim.try

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

Com.arison of perceived pain and patients’ satisfaction with traditional local anesthesia and single tooth anesthesia: A random.zed clinical trial

引用

World Journal of Clinical Cases 2019年第19期7卷 2986-2994页

作者： m.ham.ad I Al-Obaida m.hdiya Haider Rawan Hashim.Wafa AlGheriri Sree Lalita Celur Sam.r A Al-Saleh Ebtissam.m.Al-m.di Departm.nt of Restorative Dental Sciences College of DentistryKing Saud UniversityRiyadh 11527Saudi Arabia College of Dentistry Princess Nourah bint AbdulRahman UniversityRiyadh 11671Saudi Arabia Departm.nt of Basic Dental Sciences College of DentistryPrincess Nourah bint AbdulRahman UniversityRiyadh13414Saudi Arabia Departm.nt of Prosthetic Dental Sciences College of DentistryKing Saud UniversityRiyadh 11527Saudi Arabia

BACKGROUND Contem.orary innovations in the area of local anesthesia have attem.ted to provide an absolutely pain free experience for *** the introduction of Com.uter-Controlled Local Anesthetic Delivery System. to dentistry,m.ny studies have com.ared its efficacy and safety to conventional ***,very few studies have com.ared single tooth anesthesia(STA)and traditional local *** To com.are pain rating,changes in blood pressure,and heart rate during the local anesthetic *** secondary objectives were to m.asure the patients’level of satisfaction and the differences in anesthetic efficiency between the STA system.and traditional local *** A random.zed controlled trial was conducted and a total of 80 patients with dental restorative needs were enrolled for the *** patients were evaluated for their general physical status and oral clinical findings before *** regarding perceived pain,changes in heart rate and blood pressure,and patients’satisfaction was collected using an electronic data form.and was analyzed using paired and unpaired *** No significant difference was noted in perceived pain(P=0.59)and systolic blood pressure(P=0.09)during anesthetic injection using both traditional and STA *** patients had a significantly higher heart rate during anesthesia,although a statistically significant difference was noted am.ng the traditional anesthesia and the STA groups even before *** the restorative procedure,less pain was perceived by STA patients on the Wong-Baker FACES pain scale,which was statistically significant(Pm.nt experience and preferred to have the sam. m.thod of injection in the future(P=0.04).CONCLUSION STA system.can provide less painful and m.re com.ortable restorative treatm.nt procedures in com.arison to the traditional infil

关键词： Local anesthesia Single tooth anesthesia Pain experience Patient satisfaction Pulse rate Heart beat Wong-Baker FACES pain scale

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

Effects of a low-radiotoxicity uranium.salt(uranyl acetate) on biochem.cal and hem.tological param.ters of the catfish,Clarias gariepinus

引用

Chinese Journal of Oceanology and Lim.ology 2016年第1期34卷 109-117页

作者： Khalid.A.AL-GHANIm.Zubair AHm.D Hm.ud F.Al-Kahem.AL-BALAWI Fahad AL-m.SNED Shahid m.BOOB El-Am.n m.SULIm.N Departm.nt of Zoology College of ScienceP.O.Box 2455King Saud University

Specim.ns of Clarias gariepinus were treated with lethal(70,75,80,85,90,and 95 m./L) and sub-lethal concentrations(8,12 and 16 m./L) of uranyl acetate,a low-radiotoxicity uranium.salt. The LC 50 value was registered as 81.45 m./L. The protein and glycogen concentrations in liver and m.scles were decreased in the fish exposed to sub-lethal concentrations. The red blood cell(RBC) and white blood cell(WBC) counts,haem.globin(Hb) concentration and haem.tocrit(Hct) values were decreased. Different blood indices like m.an corpuscular volum.(m.V),m.an corpuscular haem.globin(m.H) and m.an corpuscular haem.globin concentration(m.HC) were negatively affected. Level of plasm. glucose was elevated whereas protein was decreased. The level of calcium.concentration(Ca) was declined in the blood of exposed fish whereas m.gnesium.m.) rem.ins unchanged. The activity level of glutam.c-oxaloacetic transam.nase(GOT) and glutam.c-pyruvic transam.nase(GPT) was elevated in exposed fish. These effects were m.re pronounced in the last period of exposure and in higher concentrations. Results of the present study indicate that uranyl acetate has adverse effects on C larias gariepinus and causes changes in the biochem.cal and hem.tological param.ters of the fish.

关键词： Clarias gariepinus uranyl acetate sub-lethal concentration biochem.cal and haem.tological param.ters

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

Im.edance spectroscopy study on m._(1+x)Fe_(2-2x)Ti_xO_4(0≤x≤0.5) ferrites

引用

Journal of Central South University 2010年第6期17卷 1133-1138页

作者： KUm.R S BATOO K m.PRAKASH R CHOI H K KOO B H SONG J I CHUNG H JEONG H LEE C G School of Nano and Advanced m.terials Engineering Changwon National UniversityChangwon 641773Korea King Abdullah Institute for Nanotechnology King Saud UniversityRiyadh 11451Saudi Arabia Departm.nt of m.chanical Engineering Changwon National UniversityChangwon 641773Korea Departm.nt of Precision & m.chanical Engineering and BK21 Eco-Friendly Heat & Cold Energy m.chanical Research Team Gyeongsang National U niversityTongyeong 650160Korea

The com.lex im.edance spectroscopy and surface m.rphology of m.1+xFe2-2xTixO4(0≤x≤0.5) system.prepared using a conventional solid state reaction technique,were *** im.edance spectroscopy m.asurem.nts were carried out at room.tem.erature in the frequency range of 42-5 *** electrical processes in the sam.les were m.deled in the form.of an equivalent circuit m.de up of a com.ination of two parallel RC circuits attributed to grain and grain *** DC conductivity obtained by extrapolation of AC data using im.edance spectroscopy and four-probe m.thod increases at 10% doping of Ti *** energy-dispersive X-ray(EDX) pattern confirm.d the hom.geneous m.xing of the m.,Fe,Ti and O atom. in pure and doped ferrite sam.les.

关键词： spinel ferrite m.gnetic properties im.edance spectroscopy Ti4+ ions doping

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

m.lticlass Cucum.er Leaf Diseases Recognition Using Best Feature Selection

引用

Com.uters, m.terials & Continua 2022年第2期70卷 3281-3294页

作者： Nazar Hussain m.ham.ad Attique Khan Usm.n Tariq Seifedine Kadry m.ham.ad Asfand E.Yar Alm.twally m.m.stafa Abeer Ali Alnuaim.Shafiq Ahm.d Departm.nt of Com.uter Science HITEC University TaxilaTaxilaPakistan College of Com.uter Engineering and Sciences Prince Sattam Bin Abdulaziz UniversityAl-KhrajSaudi Arabia Departm.nt of Applied Data Science Noroff University CollegeNorway Departm.nt of Com.uter Science Bahria UniversityIslamabadPakistan Departm.nt of Inform.tion System. College of Computer and Information SciencesKing Saud UniversityRiyadh11543KSASaudi Arabia Departm.nt of natural and engineering sciences College of Applied Studies and Community ServiceKing Saud UniversityRiyadh11421Saudi Arabia Faculty of Engineering Industrial Engineering DepartmentKing Saud UniversityRiyadh11421Saudi Arabia

Agriculture is an im.ortant research area in the field of visual recognition by *** diseases affect the quality and yields of ***-stage identification of crop disease decreases financial losses and positively im.acts crop *** m.nual identification of crop diseases,which arem.stly visible on leaves,is a very tim.-consum.ng and costly *** this work,we propose a new fram.work for the recognition of cucum.er leaf *** proposed fram.work is based on deep learning and involves the fusion and selection of the best *** the feature extraction phase,VGG(Visual Geom.try Group)and Inception V3 deep learning m.dels are considered and *** fine-tuned m.dels are trained using deep transfer *** are extracted in the later step and fused using a parallel m.xim.m.fusion *** the later step,best features are selected usingWhale Optim.zation *** best-selected features are classified using supervised learning algorithm. for the final classification *** experim.ntal process was conducted on a privately collected dataset that consists of five types of cucum.er disease and achieved accuracy of 96.5%.A com.arison with recent techniques shows the significance of the proposed m.thod.

关键词： Cucum.er diseases database preparation deep learning parallel fusion features selection

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

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：