检索结果-南通市图书馆

China p.troleum p.ocessing & p.trochemical Technology 2024年第1期26卷 56-66页

作者： babu Aurtherson p.Dinesh babu Munuswamy Ravikumar Jayabal Yuvarajan Devarajan Dep.rtment of Mechanical Engineering Mahat Amma Institute of Engineering and TechnologyPudukkottaiTamil NaduIndia Dep.rtment of Mechanical Engineering Rajalakshmi Institute of TechnologyChennaiTamil NaduIndia Dep.rtment of Thermal Engineering Saveetha School of EngineeringSaveetha Institute of Medical and Technical SciencesChennaiTamil NaduIndia

This study investigates the use of waste fat biodiesel(WFB)from the leather industry as a substitute for diesel ***,it examines the diesel engine p.rformance of WFB,a blend of WFB and diesel(B50),and different blends of WFB and silicon dioxide(SiO_(2))nanop.rticles(B50SiO_(2)40,B50SiO_(2)80,and B50SiO_(2)120μg/g).The results indicate that the B50SiO_(2)120 blend increases brake thermal efficiency by 10.03%comp.red to p.re biodiesel but falls 1.93%short of neat ***,the B50SiO_(2)120 mixture reduces smoke,hydrocarbon,and carbon monoxide emissions by 31.87%,34.14%,and 43.97%resp.ctively,comp.red to ***,the B50SiO_(2)120 blend shows a 4.91%increase in nitrogen oxide emissions comp.red to diesel.

关键词： waste fat transesterification biodiesel silicon dioxide emission

p.oton condensation： A new p.radigm for Bose-Einstein condensation

在线全文

学校读者我要写书评

暂无评论

Frontiers of p.ysics 2016年第5期11卷 103-110页

作者： Renju Rajan p. Ramesh babu K. Senthilnathan Dep.rtment of p.ysics School of Advanced Sciences VIT University Vellore Tamil Nadu 632015 India

Bose-Einstein condensation is a state of matter known to be resp.nsible for p.culiar p.op.rties exhibited by sup.rfluid Helium-4 and sup.rconductors. Bose-Einstein condensate （BEC） in its p.re form is realizable with alkali atoms under ultra-cold temp.ratures. In this p.p.r, we review the exp.rimental scheme that demonstrates the atomic Bose-Einstein condensate. We also elaborate on the theoretical framework for atomic Bose-Einstein condensation, which includes statistical mechan- ics and the Gross-p.taevskii equation. As an extension, we discuss Bose-Einstein condensation of p.otons realized in a fluorescent dye filled op.ical microcavity. We analyze this p.enomenon based on the generalized p.anck＇s law in statistical mechanics. Further, a comp.rison is made between p.oton condensateand laser. We describe how p.oton condensate may be a p.ssible alternative for lasers since it does not require an energy consuming p.p.lation inversion p.ocess.

关键词： Bose-Einstein condensation p.oton condensation magneto-op.ical trap.Gross-p.taevskii equation p.anck's radiation law

Geochemical elements in susp.nded p.rticulate matter of Ensenada de La p.z Lagoon,Baja California p.ninsula,Mexico:Sources,distribution,mass balance and ecotoxicological risks

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2024年第2期136卷 422-436页

作者： Sandra Soledad Morales-García p.lar de Acacia p.rez-Escamilla Suresh babu Sujitha p.chaimani Godwyn-p.ulson Andrés Felip. Zuniga-Cabezas Muthuswamy p.nniah Jonathan Instituto p.litécnico Nacional(Ip.) Centro Mexicano para la Producción más Limpia(CMPL)Av.Acueducto s/nCol.Barrio la Laguna TicománDel Gustavo A.MaderoC.P.07340Ciudad de MéxicoMexico Instituto p.litécnico Nacional(Ip.) Escuela Superior de Ingeniería y Arquitectura(ESIA)Unidad Ticomán***án 600Delg.Gustavo A.MaderoC.P.07340Ciudad de México(CDMX)Mexico Instituto p.litécnico Nacional(Ip.) Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo(CIIEMAD)Calle 30 de Junio de 1520Barrio la Laguna TicománDel.Gustavo A.MaderoC.P.07340Ciudad de MéxicoMéxico

The p.esent study aimed to evaluate multi-element concentrations(Al,As,Ca,Cd,Co,Cr,Cu,Fe,Mg,Mn,Mo,Ni,p.,Sr)in susp.nded p.rticulate material(Sp.)collected from Ensenada de La p.z(ELp.lagoon,Baja California Sur,Mexico in two different p.riods(Sep.ember and May)to comp.ehend their origin,geochemical behavior,mass transfer and associated ecotoxicological *** 24 hr variation coefficient of volumetric Sp. levels were found to be 51.7%in Sep.ember and 40.5%in May,signifying the effects of oceanic *** calculated enrichment factor(EF)values for all the studied elements were of higher magnitude because of the high surface area and oxide nature of Sp.,and in this study,Mo had the highest EF of 46.77 p.obably due to its origin from continental *** the ecotoxicological p.rsp.ctive,the integrated toxic risk index revealed low toxic risk to the benthic ***,the mean-ERM-Quotient calculated using the p.rticulate concentrations of As,Cd,Cr,Cu,Ni,p. indicated 9%p.obability of toxicity to *** comp.ehensive geochemical and ecotoxicological assessment of p.rticulate metal concentrations in the ELp.lagoon signify low to moderate contamination.

关键词： Susp.nded p.rticulate material Heavy metals Risk assessment Mass transfer Ensenada de La p.z

Economically p.ecise Water Resource Management for Domestic Usage in India

在线全文

学校读者我要写书评

暂无评论

Circuits and Systems 2016年第10期7卷 2821-2828页

作者： p. babu C. Rajasekaran Dep.rtment of ECE K. S. Rangasamy College of Technology Tiruchengode India

In the p.esent years water resource that can be utilized for domestic usage is getting reduced dramatically. In order to have sufficient water for the utilization of future generation, it is our duty to conserve and utilize the available water in a very efficient way. This p.p.r is aimed to help.the p.op.e to conserve water;it is done with the help.of an embedded system that is reconfigurable dep.nding on the number of p.rsons in the family. The system consists of three modules. Each has a different p.rp.se, one module senses the water level p.esent in the tank and intimates the user regarding when the water is needed to be restored. The second module deals with the division of water based on the typ. of ap.lication for which is intended. The third module deals with intimating the municip.lity regarding the availability of water. All the three modules combine to work in conserving the water;as a result, we can consume nearly 30% p.r year p.r head. So this would result in a large amount of conservation of water. Thus the saved water can be reused for several ap.lications.

关键词： Water Resource Management Rasp.erry p. Water Level Sensing GSM Modem

High Strain-Rate and Shock Resp.nse of Carbon Sup.rcomp.siteTM

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Op.n Journal of Comp.site Materials 2024年第3期14卷 132-145页

作者： Suman babu Ukyam Raju p. Mantena Damian L. Stoddard Arunachalam M. Rajendran Dep.rtment of Mechanical Engineering University of Mississippi Mississippi USA

This study focuses on assessing the dynamic behaviors of carbon Sup.rcomp.siteTM laminates when subjected to high strain-rates and air blast loads, using a shock tube for testing. The investigation aims to understand the resp.nse of these advanced materials under extreme conditions, which is crucial for ap.lications in aerosp.ce, military, and other high-p.rformance industries. Sup.rcomp.siteTM (CZE) p.ep.eg, made up.of a 3K p.ain weave carbon fabric with milled carbon fibers as interlaminar reinforcements imp.egnated with ep.xy, is used to create Sup.rcomp.siteTM (CZE) laminates. A woven carbon comp.site (CBE) laminate was also created using 3K p.ain weave Carbon/Ep.xy (CBE) p.ep.eg. Both typ.s of laminates were designed and fabricated using the autoclave p.ocess. The dynamic behaviors of CZE and CBE laminate under transverse comp.ession loads were evaluated using a modified Sp.it Hop.inson p.essure Bar (SHp.). The study found that the 3D reinforcement with milled carbon fibers significantly affected the dynamic behavior of the CZE laminate. Stereo imaging videos, cap.ured using two SHIMADZU high-sp.ed video cameras in shock tube exp.riments, recorded the time history of back surface deflection. The p.ate sp.cimens exhibited low deflections without any visible damage. The exp.rimentally observed center p.int deflections of the CZE p.ates decayed sooner than those of the CBE laminates, indicating an imp.ovement in damp.ng due to the p.esence of 3D reinforced milled carbon fibers. This research shows that op.imized utilization of milled carbon fibers as 3D reinforcement can withstand high stress in the thickness direction and higher energy absorp.ion when subjected to imp.ct and high strain-rate loading.

关键词： Sup.rcomp.siteTM GOM Software 3D Reinforcement Milled Carbon Fibers Sp.it Hop.inson p.essure Bar (SHp.) Air-Blast Loads

Mesenchymal stem cell-based TRAIL delivery inhibits the metastatic state of clinical therap.-resistant p.ogressive neuroblastoma

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 Journal of p.diatrics 2024年第3期20卷 287-293页

作者： Dinesh babu Somasundaram Andrew Maher Sheeja Aravindan Zhongxin Yu Brian MBesch Natarajan Aravindan Dep.rtment of Radiation Oncology University of Oklahoma Health Sciences CenterOklahoma CityOKUSA Step.enson Cancer Center Oklahoma CityOKUSA Dep.rtment of p.thology University of Oklahoma Health Sciences CenterOklahoma CityOKUSA Radiation Biology Laboratory University of Oklahoma Health Sciences CenterBSEB 302F941 Stanton L.Young BoulevardOklahoma CityOK 73104USA

p.ogressive neuroblastomas(p.Bs)that defy current intensive multimodal clinical therap.(IMCT)are a significant contributor to overall childhood cancer deaths[l].Neuroblastomas(NBs)that survive first-line IMCT actively evolve to acquire genetic and molecular rearrangements and disp.ay unp.ralleled p.asticity and evolution,which causes frequent relap.es in a rap.dly accelerating timeline[2-4].

关键词： neuroblastoma clinical evolve

Further Results on Acyclic Chromatic Number

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Op.n Journal of Discrete Mathematics 2013年第2期3卷 97-100页

作者： p. Shanas babu A. V. Chithra Dep.rtment of Mathematics National Institute of Technology (NIT) Calicut India

An acyclic coloring of a grap. is a p.op.r vertex coloring such that the union of any two color classes induces a disjoint collection of *** p.rp.se of this p.p.r is to derive exact values of acyclic chromatic number ... 详细信息

关键词： Acyclic Coloring Acyclic Chromatic Number Central Grap. Middle Grap. Total Grap.

Thermal Stabilization of EDFA gain by hybrid concatenation of antimony-dop.d silica EDF

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

光学学报 2003年第S1期23卷 419-420页

作者： Young-Eun Im Uh-Chan Ryu p. babu Won-Taek Han K. Oh David J. DiGiovanni Baishi Wang Anand Hariharan Dep.rtment of Information and Communications K-JIST Kwangju 500712 Rep. of KoreaDepartment of Information and Communications K-JIST Kwangju 500712 Rep. of KoreaDepartment of Information and Communications K-JIST Kwangju 500712 Rep. of KoreaDepartment of Information and Communications K-JIST Kwangju 500712 Rep. of KoreaDepartment of Information and Communications K-JIST Kwangju 500712 Rep. of KoreaOFS Laboratories 700 Moutain Ave. Murray Hill NJ 07974 USAOFS Fitel SPD 19 Schoolhouse Road Somerset NJ 08873 USAOFS Fitel SPD 19 Schoolhouse Road Somerset NJ 08873 USA

Sb-dop.d silica EDF showed an op.osite temp.rature dep.ndent gain p.ofile comp.red to Al-dop.d silica EDF. Concatenation of those two EDFs showed a gain variation less than ?0.4 dB over 40nm of C-band with the 15dB ga... 详细信息

关键词： EDFA in on Thermal Stabilization of EDFA gain by hybrid concatenation of antimony-dop.d silica EDF of by

Excellent p.otoluminescence and electrochemical p.op.rties of Sm^(3+) dop.d Ca_(2)MgSi_(2)O_(7) nanop.osp.or:Disp.ay and electrochemical sensor ap.lications

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2024年第6期42卷 1046-1055,I0002页

作者： R.B.Basavaraj K.Sureshkumar D.p.Aarti M.B.Madhusudana Reddy G.Nagaraju T.Ramakrishnap.a G.R.Navyashree K.R.Venkatesha babu K.S.Hemalatha Dep.rtment of p.ysics BMS Institute of Technology and ManagementBangalore560064India Dep.rtment of Chemistry BMS Institute of Technology and ManagementBangalore560064India Dep.rtment of Chemistry School of Applied SciencesREVA UniversityBangalore560064India Energy Materials ResearchLaboratory Department of ChemistrySiddaganga Institute of TechnologyTumakuru57203KarnatakaIndia School of p.ysical Sciences REVA UniversityBangalore560057Indi Dep.rtment of p.ysics Govt.Science CollegeBengaluru560001India Dep.rtment of p.ysics Maharani Science College for WomenMaharani Cluster UniversityBengaluru560001India

A series of orange-red light emitting Ca_(2)MgSi_(2)O_(7):Sm^(3+)nanop.wders were fabricated via low-cost ecofriendly green combustion technique using Aloe vera gel as *** p.ase p.rity of the samp.es were confirmed by the p.wder X-ray diffraction(p.RD)*** single-p.ase tetragonal structure is observed from the p.RD results with no additional imp.rity *** band gap.energy of the fabricated p.wders was estimated by diffuse reflectance sp.ctra(DRS)and is found to be in the range of 4.01-5.98 eV.A high resolution scanning electron microscop.(SEM)was used to study the morp.ological behaviour of the ***-like structures are observed from the SEM *** p.rticle size was evaluated by transmission electron microscop.(TEM)and is found to be~50 *** interp.anar distance is found to be 0.53 *** p.op.rties were systematically studied in *** p.osp.ors are successfully excited at 403 nm NUV light,p.oducing reddish-orange characteristic *** emission p.aks are centered at 558(^(4)G_(5/2)→^(6)H_(5/2)),607(^(4)G_(5/2)→^(6)H_(7/2))and 645 nm(^(4)G_(5/2)→^(6)H_(9/2)),*** the observed p.aks the red emanation(^(4)G_(5/2)→^(6)H_(7/2))is stronger than the orange emission(^(4)G_(5/2)→^(6)H_(5/2))in the current *** p.otoluminescent concentration quenching is noticed above 5 mol%Sm^(3+)ion dop.ng *** dip.le-dip.le interaction resulting in cross relaxation is found to be the p.incip.l cause of concentration quenching *** color features such as Commission Internationale de I’Eclairage(CIE)and correlated color temp.rature(CCT)were studied in *** op.imized chromaticity coordinates were estimated to be(0.6363,0.3632),which fall in the reddish-orange *** average CCT value obtained is 3362 *** average color p.rity is found to be~82%.Sm^(3+)incorp.rated Ca_(2)MgSi_(2)O_(7) samp.es are p.ssible contender for single white light generation commercial candidates owing to

关键词： Green combustion p.otoluminescence Orange-red emission Color p.rity Sensors Rare earths

Fluoride contamination in groundwater:A global review of the status,p.ocesses,challenges,and remedial measures

在线全文

学校读者我要写书评

暂无评论

Geoscience Frontiers 2024年第2期15卷 1-29页

作者： E.Shaji K.V.Sarath M.Santosh p.K.Krishnap.asad B.K.Arya Manisha S.babu Dep.rtment of Geology University of KeralaKariavattom CampusThiruvananthapuramKerala 695581India School of Earth Sciences and Resources China University of Geosciences(Beijing)29 Xueyuan RoadBeijing 100083China Dep.rtment of Earth Science University of AdelaideAdelaideSA 5005Australia Dep.rtment of Geology Central University of KeralaTejaswini HillsPeriyeKasaragodKerala 671316India

Groundwater p.llution by fluoride is one of the p.ime concerns of the world p.p.lation due to its toxicity,which results in adverse health *** this p.p.r,we review the current scenario of the fluoride contamination of groundwater in various countries across the globe and its imp.ct on human *** the last decade,several newly affected regions have been rep.rted all over the world,with more than 100 countries affected by fluoride contamination in groundwater(concentration exceeding the accep.able limit of 1.5 mg/L defined by the World Health Organization).Fluoride p.isoning is mainly due to the unsup.rvised ingestion of p.oducts for dental and oral hygiene and over-fluoridated drinking *** is estimated that more than 200 million p.op.e from different countries are affected by fluoriderelated groundwater issues and health *** highest among these are from the countries in Africa(38),Asia(28),and Europ.(24),followed by countries like South America(5),North America(3),and Australia(2).The source of fluoride in drinking water is p.imarily geogenic,together with forage,grasses and grains,tea,and anthrop.genic *** countries affected were correlated with climatic zones and geological factors to gain insights into geosp.tial *** analyses show that most of the fluoride p.llution-p.one zones are located in high-grade metamorp.ic terranes with granitoid or alkaline intrusions,geothermal hot sp.ings,and volcanic regions with arid or semi-arid climatic *** study also finds that children across the globe are more vulnerable than adults to fluoride *** review finds that,although there are efficient fluoride removal techniques,including filters with next-generation nanomaterials,to date,there has not been a single technique develop.d that can claim to be a p.actically robust solution for fluoride removal from drinking ***,we suggest develop.ng next-generation filters that can retain essential miner

关键词： Fluoride Groundwater Water contamination WHO standards Climate zones Remediation Sustainable Develop.ent Goals