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Assessing the biennial confer.nce on science and technology (BICOST IX) 2023 technical output on r.newable ener.y, ener.y stor.ge, and gr.en hydr.gen in line with UN SDG commitments

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CLEAN ENEr.Y 2024年第2期8卷 85-88页

作者： Silva, S. k. B. D. Piyumali, k. G. D. Per.r., r.sitha Thilini Sur.njana k.luar.chchi, k. D. k. G. Munagamage, Thilini Ahammed, r. M. r. Piyank.r.ge, C. S. P. Shahmy, Seyed k.r.nar.tne, Ver.nja Natl Sci & Technol Commiss Sr. Lank. Colombo Sri Lanka Sr. Lank. Technol Campus Padukka 10500 Sri Lanka Univ Per.deniya Peradeniya Sri Lanka

The development, pr.duction and utilization of r.newable ener.y, ener.y stor.ge and gr.en hydr.gen and the associated technologies in Sr. Lank. have gr.at potential to contr.bute to the United Nations' Sustainable Development Goals (SDGs). The island aims to achieve 70% electr.city gener.tion fr.m r.newable ener.y sour.es by 2030 (within the tar.et of 40% utilization of r.newable ener.y sour.es for.the entir. ener.y gener.tion of the countr. by 2030). The power.sector.has to invest US$11 billion fr.m 2023 to 2030 to contr.bute to r.aching this tar.et. This commentar. aims to pr.vide a cr.tical per.pective on the r.commendations of the r.por. fr.m the National Science and Technology Commission's 9th biennial confer.nce in 2023 on science and technology, the sub-thematic technical r.por. on clean ener.y, ener.y stor.ge and gr.en hydr.gen in line with the SDGs in the Sr. Lank.n context. The technical r.por. pr.vides insightful r.commendations for.Sr. Lank.'s ener.y sector.under.thr.e main sections: r.newable ener.y, ener.y stor.ge and gr.en hydr.gen. Also, it explor.s the potential of var.ous r.newable ener.y sour.es, ener.y stor.ge systems and gr.en hydr.gen as sustainable solutions to addr.ss the countr.'s ener.y challenges while emphasizing the spillover.effects of them, which could contr.bute to the enter.r.se's job cr.ation and uplift the economy. This commentar. pr.vides a cr.tical per.pective on clean ener.y, ener.y stor.ge and gr.en hydr.gen in line with the United Nations SDGs in the Sr. Lank.n context based on a r.cent r.por. fr.m the National Science and Technology Commission of Sr. Lank.. Gr.phical Abstr.ct

关键词： r.newable ener.y ener.y stor.ge gr.en hydr.gen sustainable development goals Sr. Lank. social economic envir.nmental sustainable affor.able

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喜马拉雅东部和西藏南部的分形和b值测绘

世界地震译丛 2010年第3期41卷 15-20页

作者： C. Singh A. Singh r. k. chadha 景晟（译）张天中（校）不详四川省地震局

根据1993～2003年期间在分布于喜马拉雅东部和西藏南部32个地震台站记录的约1300次精定位的地震,确定了分形(相关)维数和b值。0.9的空间相关度表明,该地区地震更接近于成丛分布,而b值为1.02则表明该地区的地震活动高度活跃。此外,本文... 详细信息

根据1993～2003年期间在分布于喜马拉雅东部和西藏南部32个地震台站记录的约1300次精定位的地震,确定了分形(相关)维数和b值。0.9的空间相关度表明,该地区地震更接近于成丛分布,而b值为1.02则表明该地区的地震活动高度活跃。此外,本文详尽地分析了频次—震级分布和分数维与深度的关系。分析结果表明,在喜马拉雅—青藏高原碰撞区,不同深度层次的构造变化,反映了这个地区存在高度的不均匀性和高度的变质作用。

关键词：喜马拉雅西藏南部 b值分形测绘地震台站空间相关度地震活动

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Fir.t-pr.nciples calculations to investigate str.ctur.l,electr.nic,magnetic,optical and ther.odynamic pr.per.ies of r._(2)r._(3)Ge(r.=Pr.Sm)

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Jour.al of r.r. Ear.hs 2024年第7期42卷 1385-1393,I0007页

作者： A.Ezaier.r.Masr.ur.M.Hamedoun J.k.ar.ach A.r.zzouk.A.Hour.atallah N.Benzak.ur.k.Bouslyk.ane Labor.tor. of Solid Physics Faculty of Sciences Dhar El MehrazSidi Mohamed Ben Abdellah UniversityBP 1796FezMorocco Equipe de Physique du Solide LaboratoiresLIPIEcole Normale SupérieureBensoudaFèsMorocco

In this paper.we analyzed the physical char.cter.stics of the ter.ar. alloys r._(2)r._(3)Ge(r.=Pr.and Sm)using the fir.t pr.nciples calculation based on functional density theor. integr.ted in the Wien2k.*** calculated for.ation ener.ies of Pr.(2)r._(3)Ge and Sm_(2)r._(3)Ge ar.−5.3827 and−5.2782 eV/atom,r.spectively,showing that these alloys may exist *** r.sults of the band str.ctur. and density of states indicate that all of the compounds tested ar. magnetic metals,and their.magnetism is mostly r.lated to the contr.bution of Pr.and Sm *** total magnetic moments of Pr.(2)r._(3)Ge and Sm_(2)r._(3)Ge ar. 4.07245 and 11.16161μB/f.u,*** par.meter. such as heat capacity at constant pr.ssur.,entr.py,Debye temper.tur.,lattice volume,compr.ssibility coefficients,and Gr.neisen par.meter.alloys wer. calculated using the Gibbs algor.thm and studied in depth over.a lar.e temper.tur. r.nge of 0-900 *** Debye temper.tur. incr.ases with incr.asing pr.ssur. and decr.ases with decr.asing ***,the Debye temper.tur.s calculated at p=0 GPa and T=300 k.ar. equal to be 342 and 322 k.for.Pr.(2)r._(3)Ge and Sm_(2)r._(3)Ge,*** optical char.cter.stics such as the r.al and imaginar. por.ions of the dielectr.c function,the absor.tion coefficient,the ener.y-loss function,and the r.fr.ctive index wer. investigated and discussed in mor. depth.

关键词： Magnetic metals Functional density theor. Density of states Magnetic moment Optical and ther.odynamic pr.per.ies r.r. ear.hs

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Classification of Conver.ational Sentences Using an Ensemble Pr.-Tr.ined Language Model with the Fine-Tuned Par.meter

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Computer., Mater.als & Continua 2024年第2期78卷 1669-1686页

作者： r.Sujatha k.Nimala Depar.ment of Networ.ing and Communications SRM Institute of Science and TechnologyKattankulathurChengalpattuTamilnadu603203India

Sentence classification is the pr.cess of categor.zing a sentence based on the context of the *** categor.zation r.quir.s mor. semantic highlights than other.task.,such as dependence par.ing,which r.quir.s mor. syntactic *** existing str.tegies focus on the gener.l semantics of a conver.ation without involving the context of the sentence,r.cognizing the pr.gr.ss and compar.ng *** ensemble pr.-tr.ined language model was tak.n up her. to classify the conver.ation sentences fr.m the conver.ation *** conver.ational sentences ar. classified into four.categor.es:infor.ation,question,dir.ctive,and *** classification label sequences ar. for.analyzing the conver.ation pr.gr.ss and pr.dicting the peck.ng or.er.of the *** of Bidir.ctional Encoder.for.r.pr.sentation of Tr.nsfor.er.BEr.),r.bustly Optimized BEr. pr.tr.ining Appr.ach(r.BEr.a),Gener.tive Pr.-Tr.ined Tr.nsfor.er.GPT),DistilBEr. and Gener.lized Autor.gr.ssive Pr.tr.ining for.Language Under.tanding(XLNet)models ar. tr.ined on conver.ation cor.us with *** tuning appr.ach is car.ied out for.better.per.or.ance on sentence *** Ensemble of Pr.-tr.ined Language Models with a Hyper.ar.meter.Tuning(EPLM-HT)system is tr.ined on an annotated conver.ation *** pr.posed appr.ach outper.or.ed compar.d to the base BEr.,GPT,DistilBEr. and XLNet tr.nsfor.er.*** pr.posed ensemble model with the fine-tuned par.meter. achieved an F1_scor. of 0.88.

关键词： Bidir.ctional encoder.for.r.pr.sentation of tr.nsfor.er conver.ation ensemble model fine-tuning gener.lized autor.gr.ssive pr.tr.ining for.language under.tanding gener.tive pr.-tr.ined tr.nsfor.er hyper.ar.meter.tuning natur.l language pr.cessing r.bustly optimized BEr. pr.tr.ining appr.ach sentence classification tr.nsfor.er.models

Exper.mental and numer.cal study of effecting cor. configur.tions on the static and dynamic behavior.of honeycomb plate with aluminum mater.al

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DEFENCE TECHNOLOGY 2024年第9期39卷 177-192页

作者： Hamza, Nehad Abid Allah AL-Fatlwe, Fatima Mohammed k. Talib, Muna Ali Al Qasim Gr.en Univ Engn Coll Babylon 51013 Iraq Al Fur.t Al Awsat Tech Univ ATU Engn Tech Coll Al Najaf Najaf 54003 Iraq

The sandwich panel incor.or.ted a honeycomb cor., a widely utilized composite str.ctur. r.cognized as a fundamental classification of composite mater.als. Compr.sed a cor. r.sembling a honeycomb, possessing thick.ess and softness, and is flank.by r.gid face sheets that sandwich var.ous shapes and mater.als. This paper.pr.sents an examination of the static and dynamic analysis of lightweight plates made of aluminum honeycomb sandwich composites. Honeycomb sandwich plate samples ar. 300 mm long, and 300 mm wide, the heights of the cor. have been var.ed at four.values r.nging fr.m 10 to 25 mm. The honeycomb cor. is manufactur.d fr.m Aluminum mater.al by using a novel technique namely r.sistance spot welding (r.W) instead of using adhesive mater.al, which is often used when an industr.al flaw is detected. Numer.cal optimization based on r.sponse sur.ace methodology (r.M) and design of exper.ment softwar. (DOE) was used to ver.fy the cur.ent wor.. A theor.tical examination of the cr.shwor.hiness behavior.(maximum bending load, maximum deflection) and vibr.tion attr.butes (natur.l fr.quency, damping r.tio, tr.nsient tempor.l r.sponse) of honeycomb sandwich panels with differ.nt design par.meter. was also car.ied out. In addition, the finite element method-based ANSYS softwar. was used to confir. the theor.tical conclusions. The findings of the pr.sent wor. showed that the r.lationship between the natur.l fr.quency, cor. height, and cell size is dir.ct. In contr.st, the r.lationship between the natur.l fr.quency and the thick.ess of the cell wall is inver.e. Conver.ely, the damping r.tio is inver.ely pr.por.ional to the cor. height and cell size but dir.ctly pr.por.ional to the thick.ess of the cell wall. The study indicates that alter.ng the cor. height within 10-25 mm leads to a significant incr.ase of 82 % in the natur.l fr.quency and a notable decr.ase of 49% in the damping r.tio. These findings ar. based on a specific cell size value of 0.01 m and a cell wall thick.es

关键词： Honeycomb Load Tr.nsient r.sponse Fr.e vibr.tion Natur.l fr.quency SANDWICH PANELS

LiDAr.based estimation of bounding box coor.inates using Gaussian pr.cess r.gr.ssion and par.icle swar. optimization

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Biomimetic Intelligence & r.botics 2024年第1期4卷 24-35页

作者： Vinodha k. E.S.Gopi Tushar.Agnibhoj Depar.ment of Electr.nics and Communication Engineer.ng National Institute of Technology TiruchirappalliTamil Nadu620015India

Camer.-based object tr.ck.ng systems in a given closed envir.nment lack.pr.vacy and *** this study,light detection and r.nging(LiDAr.was applied to tr.ck.objects similar.to the camer. tr.ck.ng in a closed envir.nment,guar.nteeing pr.vacy and *** pr.mar. objective was to demonstr.te the efficacy of the pr.posed technique thr.ugh car.fully designed exper.ments conducted using two *** Scenar.o I,the study illustr.tes the capability of the pr.posed technique to detect the locations of multiple objects positioned on a flat sur.ace,achieved by analyzing LiDAr.data collected fr.m sever.l locations within the closed *** II demonstr.tes the effectiveness of the pr.posed technique in detecting multiple objects using LiDAr.data obtained fr.m a single,fixed ***-time exper.ments ar. conducted with human subjects navigating pr.defined *** individuals move within an envir.nment,while LiDAr.fixed at the center.dynamically tr.ck. and identifies their.locations at multiple *** demonstr.te that a single,str.tegically positioned LiDAr.can adeptly detect objects in motion ar.und ***,this study pr.vides a compar.son of var.ous r.gr.ssion techniques for.pr.dicting bounding box *** pr.cess r.gr.ssion(GPr.,combined with par.icle swar. optimization(PSO)for.pr.diction,achieves the lowest pr.diction mean squar. er.or.of all the r.gr.ssion techniques examined at *** tuning of GPr.using PSO significantly minimizes the r.gr.ssion *** of the exper.ment pave the way for.its extension to var.ous r.al-time applications such as cr.wd management in malls,sur.eillance systems,and var.ous Inter.et of Things scenar.os.

关键词： LiDAr Data acquisition Bounding box Gaussian pr.cess r.gr.ssion Par.icle swar. optimization(PSO)

A new r.ute to weak.for.e sensing beyond SQL: Squeezed magnons in cavity magnomechanics

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Science China(Physics,Mechanics & Astr.nomy) 2024年第10期Mechanics & Astronomy) .卷 170-171页

作者： ?.k.?zdemir Depar.ment of Engineer.ng Science and Mechanics and Materials Research Institute (MRI)The Pennsylvania State University

Quantum mechanics imposes limits on measur.ment accur.cy thr.ugh quantum noise which typically has two components: Fir.t is the shot noise or.ginating fr.m vacuum fluctuations and r.fer.ed to as the impr.cision noise. Second is the quantum back.ction or.ginating fr.m the “action” of the measur.ment back.on the object being measur.d.

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Effect of cylinder.wall par.meter. on the final pack.ng density of mono-disper.e spher.s subject to thr.e-dimensional vibr.tions Author.link. open over.ay panel

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Par.icuology 2024年第8期91卷 211-225页

作者： Jack.r.Gr.gan Andr.i L.Nicuşan Chr.stopher.r.k.Windows-Yule School of Chemical Engineer.ng The University of BirminghamEdgbastonBirminghamB152TTUK

Achieving densely pack.d par.icles is desir.ble within the industr.es of cer.mics,phar.aceuticals,defence and additive *** this wor.,we use the discr.te element method(DEM)to deter.ine the effect of wall par.meter. on the final pack.ng density of mono-disper.e spher.s subject to 4 var.ing thr.e-dimensional vibr.tion and fill *** focus specifically on the impact of the container.wall par.meter. on the par.icles'final pack.ng *** on fr.m the validation of the DEM simulation the par.icle-wall coefficient of r.stitution,the par.icle-wall coefficient of r.lling fr.ction and the par.icle-wall coefficient of sliding fr.ction wer. var.ed individually and the effect on the final pack.ng density *** r.latively low par.icle-par.icle fr.ction glass beads,the effect of these wall pr.per.ies had no discer.ible effect on the final pack.ng density *** on fr.m these findings the par.icle-wall pr.per.ies wer. var.ed at the extr.me values of par.icle-par.icle coefficient of r.lling fr.ction and par.icle-par.icle coefficient of sliding *** a par.icle-par.icle coefficient of sliding fr.ction=1,incr.ases in par.icle-wall coefficient of r.stitution r.sulted in a minor.incr.ase in the final pack.ng density of par.icles though this was not statistically *** a par.icle-par.icle coefficient of sliding fr.ction=1,incr.ases in par.icle-wall coefficient of r.lling fr.ction r.sulted in a minor.decr.ase in the final pack.ng density of the par.icles though again not to a degr.e wher. the tr.nd can,with complete cer.ainty,be distinguished fr.m the r.ndom er.or.acr.ss the ***,when the par.icle-par.icle coefficient of sliding fr.ction=1,incr.ases in par.icle-wall coefficient of sliding fr.ction r.sulted in a significant decr.ase in the final pack.ng density of *** decr.ase was attr.buted to the pr.pagation of for.e chains thr.ughout the *** significant decr.ase in final pack.ng density with

关键词： Vibr.pack.ng Pack.ng Densification Vibr.tion Discr.te element method Fr.ction Wall fr.ction r.stitution

Basis for.the diver.ity and extent in loss of digestible nutr.ents cr.ated by dietar. phytin: Emphasis on fowl and swine

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动物营养学报 2024年第1期16卷 422-428页

作者： Edwin T. Mor.n Michael r. Bedfor. Poultr. Science Depar.ment Auburn University AL 36830-5416 USA AB Vista Woodstock Court Blenheim Road Marlborough Wiltshire SN8 4AN UK

Phytin is the Ca 2+ -Mg 2+ -k.+ salt of phytic acid that is cr.ated and deposited in the aleur.ne layer.and/or.ger. of gr.ins and legumes. Its high pr.sence in feedstuffs for.fowl and swine diets r.sults in it being a univer.al and significant impediment to optimum per.or.ance. Phytin impair. gastr.intestinal r.cover. of a wide ar.ay of nutr.ents, the effect var.ing with the nutr.ent concer.ed. On exposur. to low pH dur.ng gastr.c digestion, phytin dissociates into phytic acid and solubilized Ca 2+ . Even at low gastr.c pH, phytic acid is negatively char.ed which for.s the basis of its anti-nutr.tive behavior. Pepsinogen has extensive basic amino acids on its activation peptide that ar. pr.sented as cations at low pH which ar. tar.eted by pepsin for.activation. Par.ially cr.stalized Ca 2+ near.the enzyme's active site fur.her.stabilizes its newly for.ed str.ctur.. Thus, phytic acid appear. to inter.er. with gastr.c digestion by sever.l mechanisms; inter.er.ng with pepsinogen activation by binding to the polypeptide's basic amino acids; coor.inating fr.e Ca 2+ , destabilizing pepsin; binding some dietar. pr.teins dir.ctly, fur.her.compr.mising gastr.c pr.teolysis. Upon digesta attaining neutr.lity in the duodenum, Ca 2+ and other.cations r.-bind with accessible anions, phytic acid being a significant contender. Phytate not only binds fr.e cations but can also str.p them fr.m enzymes (e.g. Ca 2+ , Zn 2+ ) which r.duces their.str.ctur.l r.sistance to autolysis and ability as co-factor. (e.g. Zn 2+ ) to incr.ase enzyme activity. Goblet cells initially employ Ca 2+ as an electr.nic shield between mucin layer. enabling gr.nule for.ation and cell stor.ge. After.mucin gr.nule r.lease, Ca 2+ is pr.gr.ssively displaced by Na + to fr.e the viscous mucins enabling its tr.nslocation. Mucin entangles with the glycocalyx of adjacent enter.cytes ther.by constr.cting the unstir.ed water.layer.(USWL). Excessive r.moval of Ca 2+ fr.m mucin by phytic acid incr.ases its fluidity facilit

关键词： Digestive enzyme Calcium Endogenous pr.tein Mucin Phytin