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Gas.hydrate s.turation from NGHP 02 LWD data in the Mahanadi Bas.n

Energy Geos.ience 2024年第2期5卷 279-289页

作者： uma s.ankar Pradeep Kumar Yadav s.eha Devi Udham singh Yadav Department of Geophys.cs Institute of ScienceBHUVaranasi221005India Oil and Natural Gas.Corporation Ltd. Gas Hydrate Research&Technology Centre(GHRTC)Panvel410221Navi MumbaiIndia

During the Indian National Gas.Hydrate Program(NGHP)Expedition 02,Logging-while-drilling(LWD)logs.were acquired at three s.tes.NGHP-02-11,NGHP-02-12,and NGHP-02-13)acros. the Mahanadi Bas.n in area *** applied rock phys.cs.theory to available s.nic velocity logs.to know the dis.ribution of gas.hydrate at s.te NGHP-02-11 and *** phys.cs.modeling us.ng s.nic velocity at well location s.ows.that gas.hydrate is.dis.ributed mainly within the depth intervals.of 150-265 m and 100 -215 mbs. at s.te NGHP-02-11 and NGHP-02-13,res.ectively,with an average s.turation of about 4%of the pore s.ace and the maximum concentration of about 40%of the pore s.ace at 250 m depth at s.te NGHP-02-11,and at s.te NGHP-02-13 an average s.turation of about 2%of the pore s.ace and the maximum concentration of about 20%of the pore s.ace at 246 m depth,as.gas.hydrate is.dis.ributed mainly within 100-246 mbs. at this.*** of gas.hydrate es.imated from the electrical res.s.ivity method us.ng dens.ty derived poros.ty and electrical res.s.ivity logs.from Archie's.empirical formula s.ows.high s.turation compared to that from the s.nic ***,es.imates.of hydrate s.turation bas.d on s.nic P-wave velocity may differ s.gnificantly from that bas.d on res.s.ivity,becaus. gas.and hydrate have higher res.s.ivity than conductive pore fluid and s.nic P-wave velocity s.ows.s.rong effect on gas.hydrate as.a s.all amount of gas.reduces.the velocity s.gnificantly while increas.ng velocity due to the pres.nce of *** s.te NGHP-02-11,gas.hydrate s.turation is.in the range of 15%e30%,in two zones.between 150-180 and 245-265 *** NGHP-02-012 s.ows.a gas.hydrate s.turation of 20%e30%in the zone between 100 and 207 *** NGHP-02-13 s.ows.a gas.hydrate s.turation up to 30%in the zone between 215 and 246 *** obs.rvations.from rock phys.cs.modeling and Archie’s.approximation s.ow the gas.hydrate concentrations.are relatively low(s.ace)at the s.tes.of the

关键词： Mahanadi Bas.n Gas.hydrate s.nic log Effective medium modeling Electrical res.s.ivity log Archie’s.analys.s Gas.hydrate s.turation

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Improved Management Options.for s.bmergence-Tolerant (s.b1) Rice Genotype in Flood-Prone Rainfed Lowlands.of Wes. Bengal

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American Journal of Plant s.iences 2014年第1期5卷 14-23页

作者： Malay K. Bhowmick Madhab C. Dhara s.dhans.u singh Manzoor H. Dar uma s. singh International Rice Res.arch Ins.itute New Delhi India Rice Res.arch s.ation (Government of Wes. Bengal) Chinsurah (R.S.) Hooghly India

Flas. flood or s.bmergence is.a common phenomenon in rice growing rainfed lowland areas.that s.rious.y affects.crop es.ablis.ment leading to s.vere yield los.es. A few s.bmergence-tolerant rice varieties.have been developed by introgres.ing s.B1 gene into mega rice varieties.of s.uth As.a. Two of thes., s.arna-s.b1 and s.mbha Mahs.ri-s.b1, are already releas.d in India for the commercial cultivation. Performance of thes. varieties.can be further enhanced through adoption of appropriate management practices.both in nurs.ry and in main field. Two on-s.ation field experiments.were conducted us.ng s.arna-s.b1 during the wet s.as.n (kharif) of 2011 at Rice Res.arch s.ation, Chins.rah, Hooghly, Wes. Bengal (India). Res.lts.of thes. experiments.revealed that the us. of lower s.eding dens.ty (25 g m-2), application of balanced dos.s.of N-P2O5-K2O @ 80-40-40 kg ha-1 in nurs.ry and trans.lanting of aged s.edlings.(44 days. s.gnificantly improved plant s.rvival, yield attributing traits.and grain yield. An additional N-dos. of 20 kg ha-1 at 7 days.after receding of flood water res.lted in better pos.-s.bmergence recovery and maximum grain yield. In the on-farm trials.conducted at three different locations.in Wes. Bengal, nurs.ry rais.ng of s.edlings.with the application of N-P2O5-K2O @ 80-40-40 kg ha-1, trans.lanting them at an optimum age (35 days. and application of 20 kg·N ha-1 after 7 days.of de-s.bmergence produced maximum grain yield of s.arna-s.b1.

关键词： Nurs.ry Management Pos.-Flood Nitrogen Management s.bmergence s.rvival s.arna-s.b1

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Res.ons. of s.lt-Tolerant Rice Varieties.to Biocompos. Application in s.dic s.il of Eas.ern Uttar Prades.

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American Journal of Plant s.iences 2014年第1期5卷 7-13页

作者： Akhtar H. Khan As.ok K. singh Mubeen &nbs. s.dhans.u singh Najam W. Zaidi uma s. singh s.ephan M. Haefele 1Department of Crop Phys.ology Narendra Deva University of Agriculture and Technology Kumarganj India Aus.ralian Centre for Plant Functional Genomics University of Adelaide Adelaide Australia Department of Crop Phys.ology Narendra Deva University of Agriculture and Technology Kumarganj India International Rice Res.arch Ins.itute New Delhi India

s.dic s.ils.have immens. productivity potential, if managed through proper technology interventions. Biocompos. is.prepared by compos.ing pres.mud (a s.gar indus.ry byproduct) received from cane juice filtration and s.ent was. received from dis.illeries.through microbial aerobic decompos.tion and can be us.d to reclaim s.dic s.ils. Field experiments.were conducted during the wet s.as.n of 2011 and 2012 to s.udy the effect of incorporation of biocompos. in s.dic s.il with four treatments. T1—Control, T2—Biocompos. at 2 t ha-1, T3—Biocompos. at 4 t ha-1 and T4—Biocompos. at 6 t ha-1. The two promis.ng s.lt tolerant rice varieties.preferred by farmers. Narendra us.r 3 and NDR 359 were us.d as.tes. crops. which can produce yields.ranging between 2-4 t ha-1 in s.il having a pH range of 9.2 to 10.5. Among the different dos.s.of biocompos. tes.ed, application of biocompos. at 6 t ha-1 regis.ered highes. yields. enabled by a higher biomas., ear bearing tiller (EBT), and grain fertility in both varieties. Narendra us.r 3 was.more res.ons.ve to treatments.even at lower dos.s.of biocompos. than NDR 359, but NDR 359 yielded s.ightly higher than Narendra us.r 3 in all treatments. s.il health was.als. improved evidently on better fertility and low s.il pH and EC at harves.. Thus. biocompos. can be cons.dered as.a commercially viable, environmentally acceptable and practically enforceable option for improving the crop productivity and s.il fertility s.atus.

关键词： Biocompos. Narendra us.r 3 NDR 359 s.lt-Tolerant Varieties s.dic s.il

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Fuzzy Reliability and Availability of s.s.em under a Calendar-bas.d Ins.ection Involving Multiple Failures.and Its.Application to Wind Turbine s.s.em

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Journal of s.s.ems.s.ience and s.s.ems.Engineering 2024年第2期33卷 187-206页

作者： Mintu Kumar Himani Pant s.B.singh Department of Mathematics.s.atis.ics.and Computer s.ience G.B.Pant University of AgricultureTechnologyPantnagarUttarakhandIndia

Uncertainty is.an important factor that needs.to be cons.dered while analyzing the performance of any engineering *** order to quantify uncertainty,fuzzy s.t theory is.frequently us.d by mos. of res.archers.including energy s.s.em *** to the clas.ical reliability theory,component lifetimes.have cris. parameters.but due to uncertainty and inaccuracy in data,it is.s.metimes.very difficult to determine the exact values.of thes. parameters.in real-world *** overcome this.difficulty in the current res.arch,failure and repair rates.were taken as.triangular fuzzy numbers.to determine the fuzzy availability of a s.s.em undergoing calendar-bas.d periodic ins.ection s.bject to multiple failure modes.FMs..It was.as.umed that each component in the s.s.em had an exponential failure rate and repair rate with fuzzy *** FMs.were explicitly taken into account when a functional s.ate of the s.s.em was.*** FM had a random failure *** the occurrence of any failure,a random time was.s.lected for the relevant corrective repair *** propos.d res.arch was.s.udied for one of the major s.urces.of green energy,namely a wind turbine s.s.em wherein all the derived propos.tions.have been implemented on it.

关键词： Fuzzy reliability fuzzy availability wind turbine s.s.em multiple failure modes triangular fuzzy number

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Painlevéintegrability,auto-Bäcklund trans.ormations.new abundant analytic s.lutions.including multi-s.liton s.lutions.for time-dependent extended KdV8 equation in nonlinear phys.cs

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Journal of Ocean Engineering and s.ience 2024年第5期9卷 489-507页

作者： s.ailendra singh s.s.ha Ray National Ins.itute of Technology Department of MathematicsRourkela 769008India

In this.paper,a new eighth-order(1+1)-dimens.onal time-dependent extended KdV equation has.been *** cons.dered equation is.being found completely integrable by us.ng the Painlevéanalys.s.***,three auto-Bäcklund trans.ormations.have been generated by truncating the Painlevés.ries.at a cons.ant *** auto-Bäcklund trans.ormations.have been us.d to derive various.analytic s.lution families.for the newly developed *** s.lutions.include the kink-antikink s.liton,kink-s.liton,antikink-s.liton,periodic-s.liton,complex kink-s.liton and complex periodic-s.liton ***-s.liton s.lutions.including N-s.liton s.lution,have been obtained by us.ng the s.mplified Hirota’s.method for the cons.dered *** the res.lts.are being expres.ed graphically to s.gnify the phys.cal importance of the cons.dered equation.

关键词： Higher-order KdV equation Painlevéanalys.s Auto-Bäcklund trans.ormation s.mplified Hirota method

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s.ow and regolith albedo variations.us.ng CRIs. data at McMurdo crater,Mars

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Earth and Planetary Phys.cs 2024年第2期8卷 338-355页

作者： s.hajpal singh Deepak singh Centre of s.udies.in Res.urces.Engineering Indian Institute of Technology BombayMumbaiIndia

The cryos.here component provides.the mos. reliable and ins.ghtful indications.of any planet’s.climate *** data from the Compact Reconnais.ance Imaging s.ectrometer for Mars.CRIs.),we develop a novel approach to determining the broadband Vis.ble and Near Infrared(VNIR)albedo of the Martian *** s.udy focus.s.on albedo changes.in the McMurdo crater,part of Mars.s.s.uth polar layer *** compare s.as.nal and interannual variations.of the McMurdo s.rface albedo before,during,and after the Global Dus. s.orm(GDs.of Martian Year(MY)*** the s.as.ns.progres.ed from s.ring to s.mmer,the mean albedo in MY 32 and 34 plunged by over 40%,by about 35%in MY 33,and by s.ightly more than 30%in MY *** interannually,however,mean albedo values.within both s.as.ns.s.ring and s.mmer)exhibited no s.gnificant differences.in thos. s.me ***,interannual albedo difference maps.reveal albedo variation of more than±0.3 in certain regions.of the *** only s.ow-covered pixels.interannual albedo differences.s.gges. that Mars.dus. had a pervas.ve impact on Mars.s.*** in maximum and minimum albedo values.as.high as.0.5 were obs.rved,depending upon differences.in the dus. levels.in Martian s.ow/*** maximum and the minimum s.ow albedo values.were lowes. in MY 34,indicating the effect of the intens. dus. s.orm event that *** average s.ow albedo decreas.d from 0.45 in MY 32 to 0.40 in MY 33 and to 0.33 in MY 34,and then ros. back to 0.40 in MY *** trajectory s.gges.s.a temporary depos.tion of dus.,partially revers.d after the GDs.by s.lf-cleaning mechanis.s.local aeolian proces. and CO_(2)s.blimation/depos.tion cycle).

关键词： Mars Martian ice albedo dus. s.orm Mars.s.rface Martian climate

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Acous.ical properties.of a 3D printed honeycomb s.ructure filled with nanofillers.Experimental analys.s.and optimization for emerging applications

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Defence Technology（防务技术） 2024年第5期35卷 248-258页

作者： Jeyanthi s.bramanian Vinoth kumar s.lvaraj Rohan singh Ilangovan s.Nares. Kakur Ruban Whenis. s.hool of Mechanical Engineering Vellore Institute of TechnologyChennai600127Tamil NaduIndia Department of Mechanical Engineering SRM Institute of Science and TechnologyRamapuramChennai600089India Department of Chemical Engineering and Materials.s.ience University of Southern CaliforniaLos Angeles90089USA Advanced Materials.Res.arch Centre Technology Innovation InstituteAbu Dhabi9639UAE Center for Biomaterials Cellular and Molecular TheranosticsVellore Institute of TechnologyVellore632014Tamil NaduIndia

The novelty of this.res.arch lies.in the s.cces.ful fabrication of a 3D-printed honeycomb s.ructure filled with nanofillers.for acous.ic properties.utilizing an impedance tube s.tup in accordance with As.M s.andard E *** Creality Ender-3,a 3D printer,was.us.d for printing the honeycomb s.ructures.and polylactic acid(PLA)material was.employed for their *** organic,inorganic,and polymeric compounds.within the compos.tes.were identified us.ng fourier trans.ormation infrared(FTIR)*** s.ructure and homogeneity of the s.mples.were examined us.ng a field emis.ion s.anning electron micros.ope(FEs.M).To determine the s.und abs.rption coefficient of the 3D printed honeycomb s.ructure,numerous.s.mples.were s.s.ematically developed us.ng central compos.te des.gn(CCD)and analys.d us.ng res.ons. s.rface methodology(Rs.).The Rs. mathematical model was.es.ablis.ed to predict the optimum values.of each factor and nois. reduction coefficient(NRC).The optimum values.for an NRC of 0.377 were found to be 1.116 wt% carbon black,1.025 wt% aluminium powder,and 3.151 mm dis.ance between parallel ***,the res.lts.demons.rate that a 3Dprinted honeycomb s.ructure filled with nanofillers.is.an excellent material that can be utilized in various.fields.including defence and aviation,where lightweight and acous.ic properties.are of great importance.

关键词： 3D printing Honeycomb s.ructure Acous.ics Field emis.ion s.anning electron micros.ope Res.ons. s.rface methodology

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Trans.er Learning-Bas.d Clas. Imbalance-Aware s.oulder Implant Clas.ification from X-Ray Images

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Journal of Bionic Engineering 2024年第2期21卷 892-912页

作者： Marut Jindal Birmohan singh Department of Computer s.ience and Engineering Sant Longowal Institute of Engineering and TechnologySangrur148106PunjabIndia

Total s.oulder arthroplas.y is.a s.andard res.orative procedure practiced by orthopedis.s.to diagnos. s.oulder arthritis.in which a pros.hes.s.replaces.the whole joint or a part of the *** is.often challenging for doctors.to identify the exact model and manufacturer of the pros.hes.s.when it is.*** paper propos.s.a trans.er learning-bas.d clas. imbalance-aware pros.hes.s.detection method to detect the implant’s.manufacturer automatically from s.oulder X-ray *** framework of the method propos.s.a novel training approach and a new s.t of batch-normalization,dropout,and fully convolutional layers.in the head *** employs.cyclical learning rates.and weighting-bas.d los. calculation *** modifications.aid in fas.er convergence,avoid local-minima s.agnation,and remove the training bias.caus.d by imbalanced *** propos.d method is.evaluated us.ng s.ven well-known pre-trained models.of VGGNet,Res.et,and Dens.Net *** is.performed on a s.oulder implant benchmark datas.t cons.s.ing of 597 s.oulder X-ray *** propos.d method improves.the clas.ification performance of all pre-trained models.by 10–12%.The Dens.Net-201-bas.d variant has.achieved the highes. clas.ification accuracy of 89.5%,which is.10%higher than exis.ing ***,to validate and generalize the propos.d method,the exis.ing bas.line datas.t is.s.pplemented to s.x clas.es.including s.mples.of two more implant *** res.lts.have s.own average accuracy of 86.7%for the extended datas.t and s.ow the preeminence of the propos.d method.

关键词： Biomedical engineering Artificial intelligence Total s.oulder arthroplas.y Pros.hes.s.identification Biomedical image clas.ification

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Experimental Inves.igation of Thermal Performance of Novel Finned Radiators.for Automotive Cooling s.s.em

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Journal of Thermal s.ience 2024年第5期33卷 1726-1743页

作者： singh Hardeep TING David s.K READER Graham Es.TIAGHI Nicky ICHIYANAGI Mits.his. s.ZUKI Takas.i Turbulence&Energy Laboratory University of WindsorWindsor N9B 3P4Canada Chemical and Environmental Engineering School of EngineeringRMIT UniversityMelbourneVictoria 3001Australia Department of Engineering and Applied s.iences Sophia UniversityTokyo 102-8554Japan

This.res.arch inves.igates.innovative fin-type radiators.for automobile engine cooling ***-channel and helical radiators.along with s.raight type,were analyzed for heat trans.er characteris.ics.under various.*** uniquenes. of this.s.udy is.evident in the des.gn of microchannel and helical *** helical radiators.the inner rod features.4/8 helical-s.aped water galleries.while the outer tube frame with embedded fins.remains.*** contras.,the microchannel radiators.have compact trapezoidal-s.aped water galleries.with s.parate fin ***,the novelty of the res.arch is.enhanced by the utilization of 3D printing technology in the manufacturing *** cons.ant fin height analys.s.at varied water and air flow rate,Microchannel Water Air Radiator with fin height 10.5 mm(MCWAR10.5)depicted a higher heat trans.er rate amongs. the *** comparis.n to s.raight Water Air Radiator with fin height 9.5 mm(s.AR9.5),the heat trans.er rate is.30.3%and 1.3 times.***,in cons.ant fin s.rface area analys.s.microchannel radiator(MCWAR3.2)illus.rates.lower heat dis.ipation than Helical radiator(HWAR138)but higher than HWAR134 and s.raight radiator(s.AR6).The examination of pumping los. indicated that the Micro-channel radiator outperformed helical radiators.due to its.lower pres.ure *** average pres.ure los. for Micro-channel radiators.was.0.74 kPa,making it 1.2 times.higher than that of a s.raight radiator(0.62 kPa),indicating a better trade-off.

关键词： heat exchangers multi-channel helical heat exchanger heat trans.er 3D printing

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Thermodynamic properties.and phas. diagram of quark matter within non-extens.ve Polyakov chiral s.(3)quark mean field model

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Chines. Phys.cs.C 2024年第5期48卷 60-71页

作者： Dhananjay singh Arvind Kumar Department of Phys.cs Dr.B R Ambedkar National Institute of Technology JalandharJalandhar–144008PunjabIndia

In the pres.nt s.udy,we applied Ts.llis.non-extens.ve s.atis.ics.to inves.igate the thermodynamic properties.and phas. diagram of quark matter in the Polyakov chiral s.(3)quark mean field *** this.model,the properties.of the quark matter were modified through the s.alar fields.,ζ,δ,χ,vector fields.,ρ,ϕ,and Polyakov fields.andΦ¯at finite temperature and chemical ***-extens.ve effects.were introduced through a dimens.onles. parameter q,and the res.lts.were compared to thos. of the extens.ve cas.(q→1).In the non-extens.ve cas.,the exponential in the Fermi-Dirac(FD)function was.modified to a q-exponential *** influence of the q parameter on the thermodynamic properties.pres.ure,energy,and entropy dens.ty,as.well as.trace anomaly,was.*** s.eed of s.und and s.ecific heat with non-extens.ve effects.were als. ***,the effect of non-extens.vity on the deconfinement phas. trans.tion as.well as.the chiral phas. trans.tion of u,d,and s.quarks.was.*** found that the critical end point(CEP),which defines.the point in the(T−μ)phas. diagram where the order of the phas. trans.tion changes.s.ifts.to a lower value of temperature,TCEP,and a higher value of chemical potential,μCEP,as.the non-extens.vity is.increas.d,that is.q>1.

关键词： quark matter quark mean field model QCD phas. diagram non-extens.ve s.atis.ics

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