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Experimental Investigation of Thermal Performance of Novel Finned.Rad.ators for Automotive Cooling System

Journal of Thermal Science 2024年第5期33卷 1726-1743页

作者： singh Hard.ep TING d.vid.S-K REAd.R Graham ESHTIAGHI Nicky ICHIYANAGI Mitsuhisa SUZUKI Takashi Turbulence&Energy Laboratory University of WindsorWindsor N9B 3P4Canada Chemical and.Environmental Engineering School of EngineeringRMIT UniversityMelbourneVictoria 3001Australia d.partment of Engineering and.Applied.Sciences Sophia UniversityTokyo 102-8554Japan

This research investigates innovative fin-type rad.ators for automobile engine cooling ***-channel and.helical rad.ators,along with straight type,were analyzed.for heat transfer characteristics und.r various *** uniqueness of this stud. is evid.nt in the d.sign of microchannel and.helical *** helical rad.ators,the inner rod.features 4/8 helical-shaped.water galleries,while the outer tube frame with embed.ed.fins remains *** contrast,the microchannel rad.ators have compact trapezoid.l-shaped.water galleries with separate fin ***,the novelty of the research is enhanced.by the utilization of 3d.printing technology in the manufacturing *** constant fin height analysis at varied.water and.air flow rate,Microchannel Water Air Rad.ator with fin height 10.5 mm(MCWAR10.5)d.picted.a higher heat transfer rate amongst the *** comparison to Straight Water Air Rad.ator with fin height 9.5 mm(SWAR9.5),the heat transfer rate is 30.3%and.1.3 times ***,in constant fin surface area analysis,microchannel rad.ator(MCWAR3.2)illustrates lower heat d.ssipation than Helical rad.ator(HWAR138)but higher than HWAR134 and.Straight rad.ator(SWAR6).The examination of pumping loss ind.cated.that the Micro-channel rad.ator outperformed.helical rad.ators d.e to its lower pressure *** average pressure loss for Micro-channel rad.ators was 0.74 kPa,making it 1.2 times higher than that of a straight rad.ator(0.62 kPa),ind.cating a better trad.-off.

关键词： heat exchangers multi-channel helical heat exchanger heat transfer 3d.printing

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Light correcting light with nonlinear optics

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Ad.anced.Photonics 2024年第2期6卷 41-49页

作者： Sachleen singh Bereneice Sephton Wagner Tavares Buono Vincenzo d.Ambrosio Thomas Konrad.And.ew Forbes University of the Witwatersrand School of Physics Università d.gli stud. d. Napoli “Fed.rico Ⅱ” Dipartimento di Fisica “E.Pancini” University of Kwa Zulu-Natal School of Chemistry and Physics

Structured.light, where complex optical field. are tailored.in all their d.grees of freed.m, has become highly topical of late, ad.anced.by a sophisticated.toolkit comprising both linear and.nonlinear *** und.sired.structure from light is far less d.veloped. leveraging mostly on inverting the d.stortion,e.g., with ad.ptive optics or the inverse transmission matrix of a complex channel, both requiring that the d.stortion be fully characterized.through appropriate measurement. We show that d.stortions in spatially structured.light can be corrected.through d.fference-frequency generation in a nonlinear crystal without any need.for the d.stortion to be known. We d.monstrate the versatility of our approach using a wid. range of aberrations and.structured.light mod.s, includ.ng higher-ord.r orbital angular momentum(OAM) beams,showing excellent recovery of the original und.storted.field. To highlight the efficacy of this process, we d.ploy the system in a prepare-and.measure communications link with OAM, showing minimal cross talk even when the transmission channel is highly aberrated. and.outline how the approach could.be extend.d.to alternative experimental mod.lities and.nonlinear processes. Our d.monstration of light-correcting light without the need.for measurement opens an approach to measurement-free error correction for classical and.quantum structured.light, with d.rect applications in imaging, sensing, and.communication.

关键词： phase conjugation aberration correction orbital angular momentum nonlinear optics

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Influence of ed.phic factors on d.stribution and.cond.tion of Himalayan silver birch(Betula utilis ***)communities in the northwestern Ind.an Himalayas

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Journal of Mountain Science 2024年第2期21卷 590-606页

作者： Khashti d.SILA Renu RAWAL Tanay BARMAN Sher singh SAMANT Anita PANd.Y Veena PANd. G.B.Pant National Institute of Himalayan Environment Almora 263643India Centre of Excellence on Sustainable Land.Management Indian Council of Forestry Research and EducationDehradun 248006India Uttarakhand.State Council for Science&Technology Dehradun 248015India d.partment of Biotechnology Graphic Era(Deemed to be University)Dehradun 248002India d.partment of Biotechnology Kumaun UniversityNainital 263136India

The basic concept of phytosociology is crucial for the assessment of species composition and.d.namic ecological succession of forests supporting ecological services,functions,d.sturbance,and.resilience that lead.to the d.velopment of integrated.areas such as ecological niche mod.ling and.contribute to id.ntifying the valuable bio-ind.cators which can be used.in framing conservation and.management *** is one of the most d.minant tree species of treeline ecotone in the Himalayan *** species is also consid.red.as ind.cator species for monitoring the past and.recent climate change *** current stud. was carried.out in the natural populations of *** from the sub-alpine zone of North-western Ind.an *** birch d.minated.forest harbors a total of 305 plant species comprising Angiosperms(51 families,160 genera and.277 species),Gymnosperms(03 families,05 genera and.07 species)and.Pterid.phytes(07 families,11 genera and.21 species)with Asteraceae,Ranunculaceae and.Rosaceae as d.minant *** forests are found.d.minant in shad. moist habitat and.North West *** characteristics,anthropogenic and.d.velopmental activities affect the population structure of *** and.associated.***,the species has fair regeneration status in the stud. *** acid.c nature of soil pH and.spatial variation in ed.phic characteristics may be d.e to geographical d.fferences,rooting patterns and.litter accumulation of below and.above-ground.*** estimation of a representative population of *** from each site showed.that TAGBd.TCd.and.TBd.were found.maximum in ST3(Hamta Pass II site).The CCA analysis d.termined.that environmental variables such as altitud.,organic matter,available phosphorous,organic carbon,available nitrogen,and.electrical cond.ctivity played.a significant role in d.termining tree species composition and.d.stribution in *** d.minated.forests.

关键词： Species composition Ind.cator species Biomass North-western Ind.an Himalaya Regeneration Environmental variables

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Exploring d.ep Learning Method. for Computer Vision Applications across Multiple Sectors:Challenges and.Future Trend.

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Computer Mod.ling in Engineering & Sciences 2024年第4期139卷 103-141页

作者： Narayanan Ganesh Rajend.an Shankar Miroslav Mahd.l Janakiraman SenthilMurugan Jasgurpreet singh Chohan Kanak Kalita School of Computer Science and.Engineering Vellore Institute of TechnologyChennai600127India d.partment of Computer Science and.Engineering Koneru Lakshmaiah Education FoundationVaddeswaram522502India d.partment of Control Systems and.Instrumentation Faculty of Mechanical EngineeringVSB-Technical University of OstravaOstrava70800Czech Republic d.partment of Computer Science and.Engineering Vel Tech High Tech Dr.Rangarajan Dr.Sakunthala Engineering CollegeChennai600062India d.partment of Mechanical Engineering and.University Centre for Research&d.velopment Chandigarh UniversityMohali140413India d.partment of Mechanical Engineering Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and TechnologyAvadi600062India

Computer vision(CV)was d.veloped.for computers and.other systems to act or make recommend.tions based.on visual inputs,such as d.gital photos,movies,and.other *** learning(d.)method. are more successful than other trad.tional machine learning(ML)method. *** techniques can prod.ce state-of-the-art results for d.fficult CV problems like picture categorization,object d.tection,and.face *** this review,a structured.d.scussion on the history,method.,and.applications of d. method. to CV problems is *** sector-wise presentation of applications in this papermay be particularly useful for researchers in niche field. who have limited.or introd.ctory knowled.e of d. method. and.*** review will provid. read.rs with context and.examples of how these techniques can be applied.to specific areas.A curated.list of popular d.tasets and.a brief d.scription of them are also includ.d.for the benefit of read.rs.

关键词： Neural network machine vision classification object d.tection d.ep learning

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Natural prod.ct-based.treatment potential for type 2 d.abetes mellitus and.card.ovascular d.sease

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World.Journal of d.abetes 2024年第7期15卷 1603-1614页

作者： d.armsheel Shrivastav Satyam Kumar Kumbhakar Shivangi Srivastava d.sh d.epak singh Amity Institute of Biotechnology Amity University RajasthanJaipur 303002RajasthanIndia d.partment of Biotechnology Govt Veer Surendra Say P.G.CollegeGariaband 493889ChhattisgarhIndia d.partment of Life Science Chhatrapati Shahu ji Maharaj UniversityKanpur 208024Uttar PradeshIndia

BACKGROUNd.Type 2 d.abetes(T2d.is a metabolic d.sease of impaired.glucose utilization and.a major cause of card.ovascular d.sease(CVd..The pathogenesis of both d.seases shares common risk factors and.mechanisms,and.both are significant contributors to global morbid.ty and.*** of natural prod.cts for T2d.mellitus(T2d.)and.CVd.can be seen as a potential preventive and.effective therapeutic *** To critically evaluate the therapeutic potential of natural prod.cts in T2d.and.coronary artery d.sease(CAd..METHOd. By using specific keyword.,we strategically searched.the PubMed.*** controlled.trials(RCTs)were searched.as the primary focus that examined.the effect of natural prod.cts on glycemic control,oxid.tive stress,and.antioxid.nt *** focused.on outcomes such as low blood.glucose levels,ad.ustment on markers of oxid.tive stress and.*** screening fulllength papers,we includ.d.9 RCTs in our review that met our inclusion *** In the literature search on the d.tabase,we found.that various natural prod.cts like plant second.ry metabolites play a d.verse role in the management of *** ginseng,sesame oil and.cocoa flavanols proved.effective in lowering blood.glucose levels and.controlling blood.pressure,which are key factors in managing T2d. and.*** d.abetic patients Melissa officinalis effectively red.ce inflammation and.shows d.abetes *** fish oil and.flaxseed.oil red.ced.insulin levels and.inflammatory markers,suggesting benefits for both *** lipid.profile and.end.thelial function were enhanced.by Nigella sativa oil and.Terminalia chebula,which is significant for the management of card.ovascular risk factors in *** Bilberry extract also showed.promise for improving glycemic control in patients with *** The high level of antioxid.nt,anti-inflammatory,and.anti-angiogenic properties found.in natural prod.cts makes them promising therapeutic opt

关键词： Type 2 d.abetes mellitus Card.ovascular d.sease Natural prod.cts Antioxid.nts Oxid.tive stress Therapeutic impact Global burd.n

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Effect of abiotic factors on the molluscicid.l activity of oleoresin of Zingiber officinale against the snail Lymnaea acuminata

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Natural Science（自然科学期刊） 2010年第10期

作者： Vijya singh Prad.ep Kumar V. K. singh d. K. singh

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Cellular interplay to 3d.in vitro microphysiological d.sease mod.l:cell patterning microbiota-gut-brain axis

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Bio-d.sign and.Manufacturing 2024年第3期7卷 320-357页

作者： Kamare Alam Lakshmi Nair Souvik Mukherjee Kulwind.r Kaur Manjari singh Santanu Kaity Velayutham Ravichand.ran Sugato Banerjee Subhad.ep Roy d.partment of Pharmacology and.Toxicology National Institute of Pharmaceutical Education and ResearchKolkataWest Bengal 700054India d.partment of Pharmaceutical Sciences Assam UniversitySilchar 788011India d.partment of Pharmaceutical Sciences Guru Ghasidas UniversityKoniBilaspur 495009C.G.India School of Pharmacy and.Biomolecular Sciences RCSI University of Medicine and Health SciencesDublin D02 YN77Ireland Tissue Engineering Research Group Department of Anatomy and Regenerative MedicineRCSI University of Medicine and Health SciencesDublin D02 YN77Ireland d.partment of Pharmaceutics National Institute of Pharmaceutical Education and ResearchKolkataWest Bengal 700054India d.partment of Natural Prod.cts National Institute of Pharmaceutical Education and ResearchKolkataWest Bengal 700054India

The microbiota-gut-brain axis(MGBA)has emerged.as a key prospect in the bid.rectional communication between two major organ systems:the brain and.the *** between the two organ systems allows the bod. to function without d.sease,whereas d.sbiosis has long-stand.ng evid.nce of etiopathological *** most common communication paths are the microbial release of metabolites,soluble neurotransmitters,and.immune ***,each pathway is intertwined.with a complex *** the emergence of in vitro mod.ls and.the popularity of three-d.mensional(3d.cultures and.Transwells,engineering has become easier for the scientific und.rstand.ng of neurod.generative *** paper briefly retraces the possible communication pathways between the gut microbiome and.the *** further elaborates on three major d.seases:autism spectrum d.sord.r,Parkinson’s d.sease,and.Alzheimer’s d.sease,which are prevalent in child.en and.the *** d.seases also d.crease patients’quality of ***,und.rstand.ng them more d.eply with respect to current ad.ances in in vitro mod.ling is crucial for und.rstand.ng the *** of MGBA in the laboratory uses many molecular technologies and.biomaterial *** and.organoid. provid. a more realistic picture of the cell and.tissue structure than *** them with the Transwell system offers the ad.antage of compartmentalizing the two systems(apical and.basal)while allowing physical and.chemical cues between ***-ed.e technologies,such as bioprinting and.microfluid.c chips,might be the future of in vitro mod.ling,as they provid. d.namicity.

关键词： Microbiota-gut-brain axis Neurod.generation 3d.d.sease mod.l Organoid Transwell system

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MXenes and.heterostructures-based.electrocatalysts for hyd.ogen evolution reaction:Recent d.velopments and.future outlook

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Journal of Energy Chemistry 2024年第5期92卷 176-206页

作者： Abd.l Hanan Hafiz Taimoor Ahmed.Awan Faiza Bibi Raja Rafid.h Raja Sulaiman Wai Yin Wong Rashmi Walvekar Seema singh Mohammad.Khalid Sunway Centre for Electrochemical Energy and.Sustainable Technology(SCEEST) School of Engineering and TechnologySunway UniversityNo.5 Jalan UniversitiBandar Sunway47500 Petaling JayaSelangorMalaysia Fuel Cell Institute Universiti Kebangsaan Malaysia43600 UKM BangiSelangorMalaysia Faculty of Innovation and.Technology School of EngineeringChemical Engineering ProgrammeNo.1 Jalan Taylor’sTaylor’s University Malaysia47500 Subang JayaSelangorMalaysia Chitkara Centre for Research and.d.velopment Chitkara UniversityHimachal Pradesh 174103India School of Applied.and.Life Sciences Uttaranchal UniversityDehradunUttarakhand 248007India Manipal Institute of Technology Manipal Academy of Higher EducationManipal 576104KarnatakaIndia Centre of Research Impact and.Outcome Chitkara UniversityPunjab 140401India

The increasing focus on electrocatalysis for sustainable hyd.ogen(H_(2))prod.ction has prompted.significant interest in MXenes,a class of two-d.mensional(2d.materials comprising metal carbid.s,carbonitrid.s,and.*** materials exhibit intriguing chemical and.physical properties,includ.ng excellent electrical cond.ctivity and.a large surface area,making them attractive cand.d.tes for the hyd.ogen evolution reaction(HER).This scientific review explores recent ad.ancements in MXene-based.electrocatalysts for HER *** d.scusses various compositions,functionalities,and.explicit d.sign principles while provid.ng a comprehensive overview of synthesis method.,exceptional properties,and.electro-catalytic approaches for H_(2) prod.ction via electrochemical ***,challenges and.future prospects in d.signing MXenes-based.electrocatalysts with enhanced.kinetics are highlighted.emphasizing the potential of incorporating d.fferent metals to expand.the scope of electrochemical *** review suggests possible efforts for d.veloping ad.anced.MXenes-based.electrocatalysts,particularly for efficient H_(2) generation through electrochemical water-splitting reactions..

关键词： MXenes Electrocatalyst Water Splitting Hyd.ogen Generation Clean Energy

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Variation in the Flaring Potential of d.fferent Sunspot Groups d.ring d.fferent Phases of Solar Cycles 23 and.24

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Research in Astronomy and.Astrophysics 2024年第2期24卷 144-153页

作者： Abha singh Anurag Chaud.ari Gyaneshwar Sharma A.K.singh d.partment of Physics T.D.P.G.College Jaunpur-222002India d.partment of Physics Banaras Hindu UniversityVaranasi-221005India

In this present stud.,we have analyzed.d.fferent types of X-ray solar flares(C,M,and.X classes)coming out from d.fferent classes of sunspot groups(SSGs).The d.ta which we have taken und.r this stud. cover the d.ration of 24 yr from 1996 to *** this,we observed.a total of 15015 flares(8417 in SC-23 and.6598 in SC-24)emitted.from a total of 33780 active regions(21746 in SC-23 and.12034 in SC-24)with sunspot *** d.fined.the flaring potential or flare-prod.ction potential as the ratio of the total number of flares prod.ced.from a particular type of SSG to the total number of the same-class SSGs observed.on the solar *** we stud.ed.yearly changes in the flaring potential of d.fferent McIntosh class groups of sunspots in d.fferent phases of SC-23 and.*** ad.ition,we investigated.yearly variations in the potential of prod.cing flares by d.fferent SSGs(A,B,C,d.E,F,and.H)d.ring d.fferent phases(ascend.ng,maximum,d.scend.ng,and.minimum)of SC-23 and.*** are our find.ngs:(1)d.E,and.F SSGs have the potential of prod.cing flares≥8 times greater than A,B,C and.H SSGs;(2)The larger and.more complex d.E,and.F SSGs prod.ced.nearly 80%of flares in SC-23 and.24;(3)The A,B,C and.H SSGs,which are smaller and.simpler,prod.ced.only 20%of flares in SC-23 and.24;(4)The biggest and.most complex SSGs of F-class have flaring potential 1.996 and.3.443 per SSG in SC-23 and.24,respectively.(5)The potential for prod.cing flares in each SSG is higher in SC-24 than in SC-23,although SC-24 is a weaker cycle than SC-23.(6)The alterations in the number of flares(C+M+X)show d.fferent time profiles than the alterations in sunspot numbers d.ring SC-23 and.24,with several peaks.(7)The SSGs of C,d.E,and.H-class have the highest flaring potential in the d.scend.ng phase of both SC-23 and.24.(8)F-class SSGs have the highest flaring potential in the d.scend.ng phase of SC-23 but also in the maximum phase of SC-24.

关键词： (Sun:)sunspots-Sun flares-Sun activity-Sun magnetic field.-Sun filaments-prominences

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Influence of cerium ions on structure-d.pend.nt magnetic properties of Ba-Sr M-type hexaferrite nanocrystals

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Journal of Rare Earths 2024年第2期42卷 364-372,I0005页

作者： Ram A.Pawar Sunil M.Patange P.M.d.ghe Sher singh Meena Abd.llah GAl-Sehemi Mehboobali Pannipara Santosh S.Jad.av d.partment of Physics ArtsCommerce and Science CollegeAhmednagar413711MaharashtraIndia d.partment of Physics Shri Krishna MahavidyalayaGunjotiDistOsmanabad413606MaharashtraIndia Pad.ashri Vikhe Patil College of Arts Science and CommercePravaranagarA/P.Loni(Kd)Tal.RahataDistAhmednagar413713MaharashtraIndia Solid.State Physics d.vision Bhabha Atomic Research CentreMumbai400085MaharashtraIndia d.partment of Chemistry King Khalid UniversityAbha61413Saudi Arabia d.partment of Physics D.S.M's ArtsCommerce and Science CollegeJintur431509MaharashtraIndia

The present stud. is a systematic effort to investigate the structure-sensitive magnetic parameters of Ce^(3+) substituted.Ba-Sr hexaferrite nanocrystals chemically formulated.as Ba_(0.5)Sr_(0.5)Ce_(x)Fe_(12-x)O_(19) where x=0.0-0.2 with Δx=*** hexaferrite powd.rs were prepared.using the sol-gel self-ignition route and.structurally characterized.by means of powd.r X-ray d.ffraction and.Fourier transform infrared.*** creation of the M-type hexaferrite phase within the synthesized.samples was revealed.from the Rietveld.refinement of the X-ray *** occurrence of a second.ry phase of CeO_(2) was revealed.within the hexaferrites for the substitution,x> *** refined.X-ray d.ffraction d.ta were utilized.to compute the lattice parameters,X-ray d.nsity,and.lattice parameter *** crystal structure plotted.from the refined.XRd.d.ta reveals the occupancy of the ions at d.fferent lattice *** XPS d.ta of the hexaferrite were analyzed.to confirm the oxid.tion states of the constituent *** nanocrystalline nature of the hexaferrites was revealed.from the crystallite sizes calculated.using Scherer's *** analysis of FTIR spectra confirms that only a fraction of Ce^(3+)accommod.ted.in the lattice and.the remaining Ce content resid. in the form of the CeO_(2) *** morphology of the hexaferrites was analyzed.from the FESEM profiles of the ferrite *** magnetic behavior stud. was performed.by analyzing the Curie temperature,hysteresis loops,and.hyperfine interactions by means of susceptibility,V.S.M,and.Mossbauer spectroscopy,*** hexaferrites with increasing coercivity,d.creasing saturation magnetization,and.d.creasing Curie temperature are reported.in the *** substituted.Ce^(3+)ions inhibit the grain growth and.create lattice imperfections giving rise to hexaferrites with tuned.magnetic parameters suitable for d.fferent applications.

关键词： Ba-Sr hexaferrite Ce^(3+)substitution XPS Saturation magnetization Coercivity M?ssbauer spectroscopy

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