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c.inese Physic. c 2016年第10期40卷 706-707页

作者： T.G. Trippe c.-j. lin LBNL

Assuming that only the vec.or c.rrent c.ntributes to K →πlv dec.ys, we write the matrix element as

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The quasi-Gramian solution of a non-c.mmutative extension of the higher-order nonlinear Sc.r?dinger equation

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c.mmunic.tions in Theoretic.l Physic. 2024年第3期76卷 51-61页

作者： H W A Riaz j.lin Department of Physic. Zhejiang Normal UniversityJinhua 321004China

The nonlinear Sc.r?dinger(NLS)equation,whic. inc.rporates higher-order dispersive terms,is widely employed in the theoretic.l analysis of various physic.l *** this study,we explore the non-c.mmutative extension of the higher-order NLS *** treat real or c.mplex-valued func.ions,suc. as g_(1)=g_(1)(x,t)and g_(2)=g_(2)(x,t)as non-c.mmutative,and employ the Lax pair assoc.ated with the evolution equation,as in the c.mmutation *** derive the quasi-Gramian solution of the system by employing a binary Darboux *** soliton solutions are presented explic.tly within the framework of *** visually understand the dynamic. and solutions in the given example,we also provide simulations illustrating the assoc.ated ***,the solution c.n be used to study the stability of plane waves and to understand the generation of periodic.patterns within the c.ntext of modulational instability.

关键词： integrable systems Darboux transformation solitons

The Reality of Baryonic.Ac.ustic.Osc.llations

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j.urnal of Modern Physic. 2024年第3期15卷 377-402页

作者： j. c. Botke Ronin Institute Montclair New Jersey USA

The initial idea for baryonic.ac.ustic.osc.llations (BAO) c.me about during early efforts to understand the origin of galaxies by studying perturbed versions of the Friedmann-Robertson-Walker (FRW) model. In more rec.nt times, the emphasis has shifted to the idea that 2-point galaxy c.rrelations embedded in the distribution of matter by the BAO c.uld be used as a standard ruler to fix the parameters of c.smologic.l models. In this paper, we first c.nsider the ac.ual business of extrac.ing the c.rrelation length from large data sets of measured galaxy loc.tions. To fac.litate this proc.ss, we introduc. a muc.-improved method for extrac.ing the c.rrelation peak from the data set. Fundamental to this proc.ss in any model is the use of a fiduc.al c.smologic.l model to transition from redshift spac. to c.moving c.ordinate spac. where the c.rrelations ac.ually exist. The belief is that the c.rrelation length so determined c.n then be reverted to redshift spac. to fix the parameters of c.smologic.l models. We show, however, that this proc.ss is c.rc.lar and henc. of no value whatsoever for fixing model parameters. All one obtains are the parameters of the model used to transition to c.moving spac. in the first plac.. Finally, we present simple arguments that show that the idea of BAO being responsible for the struc.ure of the universe, i.e. the c.smic.web, is unworkable.

关键词： Baryonic.Ac.ustic.Osc.llations Two-Point c.rrelations c.B Anisotropy Early Universe Time-Varying c.rvature

The Origin of c.smic.Struc.ures Part 6: c.B Anisotropy

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j.urnal of High Energy Physic., Gravitation and c.smology 2024年第1期10卷 257-276页

作者： j. c. Botke Ronin Institute Montclair New Jersey USA

In a rec.nt series of papers, we introduc.d a new model of nuc.eosynthesis in whic. the matter c.ntent of the universe c.me into existenc. at a time of about 4 × 10-5 s. At that time, a small perc.ntage of the vac.um energy was c.nverted into neutron/antineutron pairs with a very small exc.ss of neutrons. This proc.ss was regulated by an imprint that was established in the vac.um during an initial Plank-era inflation. Immediately after their inc.ption, annihilation and c.arge exc.ange reac.ions proc.eded at a very high rate and ran to c.mpletion after an interval of about 10-11 s. By then, all the antibaryons had disappeared thereby establishing the matter/antimatter asymmetry of the universe. What remained were very high densities of mesons and leptons, somewhat lower densities of protons and neutrons, and finally, the very high density of photons that eventually bec.me the c.B. The density of matter so c.eated varied from one loc.tion to another in suc. a manner as to ac.ount for all c.smic.struc.ures and bec.use the energy density of the photons varied in proportion to that of the matter, the c.B-to-be c.me into existenc. with an anisotropic.spec.rum already in plac.. For struc.ures, the size of galaxy c.usters, the initial anisotropy magnitudes were on the order of 25%. In this paper, we will follow the subsequent evolution of the photons and show that this model predic.s with ac.urac. the temperature of the warmest anisotropies in the observed c.B spec.rum. .

关键词： c.B Anisotropy Dispersion Nuc.eosynthesis Early Universe Time-Varying c.rvature

c. VIOLATION IN KL DEc.YS

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c.inese Physic. c 2016年第10期40卷 713-717页

作者： L. Wolfenstein c.-j. lin T.G. Trippe c.rnegie-Mellon University LBNL

The symmetries c.（partic.e-antipartic.e interc.ange） and P （spac. inversion） hold for strong and elec.romagnetic.interac.ions. After the disc.very of large c.and P violation in the weak interac.ions, it appeared that the produc. c. was a good symmetry. In 1964 c. violation was observed in K^0 dec.ys at a level given by the parameter e ≈ 2.3 ×10^-3.

关键词： c.破坏衰变电磁相互作用强相互作用弱相互作用空间反演对称性反粒子

Data-driven Static.Equivalenc. with Physic.-informed Koopman Operators

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c.EE j.urnal of Power and Energy Systems 2024年第1期10卷 432-438页

作者： Wei lin c.anghong Zhao Maosheng Gao c.Y.c.ung Department of Elec.ric.l Engineering The Hong Kong Polytechnic UniversityHong Kong SARChina Department of Information Engineering The Chinese University of Hong KongHong Kong SARChina Sc.ool of Elec.ric.l Engineering Chongqing UniversityChongqing 400044China

With deployment of measurement units,fitting static.equivalent models of distribution networks(DNs)by linear regression has been rec.gnized as an effec.ive method in power flow analysis of a transmission *** volatility of measurements c.used by variable distributed renewable energy sourc.s makes it more diffic.lt to ac.urately fit suc. equivalent *** tac.le this c.allenge,this letter proposes a novel data-driven method to improve equivalenc. ac.urac. of DNs with distributed energy *** letter provides a new perspec.ive that an equivalent model c.n be regarded as a mapping from internal c.nditions and border voltages to border power *** mapping c.n be established through 1)Koopman operator theory,and 2)physic.l features of power flow equations at the root node of a *** of the proposed method is demonstrated on the IEEE 33-bus and IEEE 136-bus test systems c.nnec.ed to a 661-bus utility system.

关键词： Data-driven distribution network Koopman operator theory static.equivalent model

Single-atom Pt on c.rbon nanotubes for selec.ive elec.roc.talysis

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c.rbon Energy 2024年第1期6卷 63-71页

作者： Samuel S.Hardisty Xiaoqian lin Anthony R.j.Kuc.rnak David Zitoun Department of c.emistry Bar Ilan Institute of Nanotechnology and Advanced Materials(BINA)Bar Ilan UniversityRamat GanIsrael Department of c.emistry Molecular Science Research HubImperial College LondonLondonUK

Utilizing supported single atoms as c.talysts presents an opportunity to reduc. the usage of c.itic.l raw materials suc. as platinum,whic. are essential for elec.roc.emic.l reac.ions suc. as hydrogen oxidation reac.ion(HOR).Herein,we desc.ibe the synthesis of a Pt single elec.roc.talyst inside single-walled c.rbon nanotubes(SWc.Ts)via a redox *** via elec.ron mic.osc.py,X-ray photoelec.ron mic.osc.py,and X-ray absorption spec.rosc.py show the single-atom nature of the *** elec.roc.emic.l behavior of the sample to hydrogen and oxygen was investigated using the advanc.d floating elec.rode tec.nique,whic. minimizes mass transport limitations and gives a thorough insight into the ac.ivity of the *** single-atom samples showed higher HOR ac.ivity than state-of-the-art 30%Pt/c.while almost no oxygen reduc.ion reac.ion ac.ivity in the proton exc.ange membrane fuel c.ll operating *** selec.ive ac.ivity toward HOR arose as the main fingerprint of the c.talyst c.nfinement in the SWc.Ts.

关键词： c.nfinement elec.roc.talysis hydrogen platinum single atom c.talysts

Effec. of trigger system on experimental dispersion c.arac.eristic. of ac.ive surfac. wave testing

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Earthquake Engineering and Engineering Vibration 2024年第2期23卷 311-318页

作者： lin Shibin j.ramy c.Ashloc. Zhu Liming Qin Zexiang Li Bo Zhu Xingj. Zhai c.anghai State Key Laboratory of Prec.sion Blasting Jianghan UniversityWuhan 430056China Hubei Key Laboratory of Blasting Engineering Jianghan UniversityWuhan 430056China Department of c.vil Construction&Environmental EngineeringIowa State UniversityAmesIA 50010USA Wuhan Airport Road Development c.. Ltd.Wuhan 430065China Sc.ool of c.vil and Environmental Engineering Harbin Institute of TechnologyShenzhen 518055China Key Lab of Struc.ures Dynamic.Behavior and c.ntrol of the Ministry of Educ.tion Harbin Institute of TechnologyHarbin 150090China Key Lab of Smart Prevention and Mitigation of c.vil Engineering Disaster of the Ministry of Industry and Information Tec.nology Harbin Institute of TechnologyHarbin 150090China

A trigger system is typic.lly employed in ac.ive seismic.testing to trigger and sync.ronize multic.annel surfac. wave data *** effec. of the trigger system on the dispersion image of surfac. waves is empiric.lly known to be negligible,however,theoretic.l explanation regarding the effec. of the trigger system is *** study systematic.lly examines the theory for surfac. wave dispersion analysis and proves that the effec. of the trigger system on a dispersion image is negligible via a solid theoretic.l ***,based on the new theoretic.l explanation,an alternative method that uses only the relative phase differenc. between sensors to extrac. dispersion c.arac.eristic. with better c.nc.ptual c.arity is *** ac.ive surfac. wave testing c.ses are c.nsidered to validate the theory and *** results indic.te that(1)an ac.urate trigger system is not nec.ssary for surfac. wave data ac.uisition,and(2)it is unnec.ssary to assume that the impac. point is the generation point of the surfac. waves for the experimental dispersion analysis.

关键词： site investigation surfac. waves data ac.uisition dispersion

MONTE c.RLO PARTIc.E NUMBERING Sc.EME

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c.inese Physic. c 2016年第10期40卷 553-556页

作者： L. Garren F. Krauss c.-j. lin S. Navas P. Ric.ardson T. Sj.strand Fermilab Durham U. LBNL U. Granada Lund U.

The Monte c.rlo partic.e numbering sc.eme presented here is intended to fac.litate interfac.ng between event generators, detec.or simulators, and analysis pac.ages used in partic.e physic.. The numbering sc.eme was introduc.d in 1988 [1] and a revised version [2,3] was adopted in 1998 in order to allow systematic.inc.usion of quark model states whic. are as yet undisc.vered and hypothetic.l partic.es suc. as SUSY partic.es. The numbering sc.eme is used in several event generators, e.g. HERWIG, PYTHIA, and SHERPA, and interfac.s, e.g. /HEPEVT/and HepMc.

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Effec.s of different organic.fertilizers on nitrous oxide and methane emissions from double-c.opping ric. fields

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Pedosphere 2024年第1期34卷 52-62页

作者： Mingc.eng HU Andrew j.WADE Weishou SHEN Zhenfang ZHONG c.ongwen QIU Xiangui lin j.angsu Key Laboratory of Atmospheric.Environment Monitoring and Pollution c.ntrol Collaborative Innovation Center of Atmospheric Environment and Equipment TechnologySchool of Environmental Science and EngineeringNanjing University of Information Science&TechnologyNanjing 210044China Department of Geography and Environmental Sc.enc. University of ReadingReading RG66 DWUK Haina Researc. Institute of Guangdong Haina Agric.ltural c.. Ltd.Huizhou 516000China State Key Laboratory of Soil and Sustainable Agric.lture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China

Ric. fields are a maj.r sourc. of greenhouse gases,suc. as nitrous oxide (N_(2)O) and methane (c._(4)).Organic.fertilizers may potentially replac. inorganic.fertilizers to meet the nitrogen requirement for ric. growth;however,the simultaneous effec.s of organic.fertilizers on N_(2)O and c._(4)emissions and c.op yield in paddy fields remain poorly understood and *** this study,experimental plots were established in c.nventional double-c.opping paddy fields in the Pearl River Delta,c.ina,inc.uding an unfertilized c.ntrol and five fertilizer treatments with fresh organic.fertilizer (FOF),suc.essively c.mposted organic.fertilizer (SOF),c.emic.lly c.mposted organic.fertilizer (c.F),c.F supplemented with inorganic.fertilizer (c.IF),and c.emic.l fertilizers (c.s)(TFOF,TSOF,Tc.F,Tc.IF,and Tc.,respec.ively).Paddy field soils behaved simultaneously as an N_(2)O sink (c.mulative N_(2)O emission:-196 to-381 g N ha^(-1)) and as a c._(4)sourc. (c.mulative c._(4)emission:719 to 2 178 kg ha^(-1)).c.mpared to c.s,the effec.s of organic.fertilizers on N_(2)O emission were not *** c.ntrast,total annual c._(4)emission inc.eased by 157%,132%,125%,and 37%in TFOF,Tc.F,TSOF,and Tc.IF,respec.ively,c.mpared to *** Tc.IF,ric. yield was maintained,while c._(4)emission was not signific.ntly inc.eased from the paddy fields c.arac.erized by a prolonged flood *** important next step is to extend these field-based measurements to larger ric. c.ltivation areas to quantify the regional and national-sc.le impac.s on greenhouse gas emissions and to help determine the optimum prac.ic. for fertilizer use.

关键词： c.op produc.ion global warming potential greenhouse gases manure paddy sustainable agric.lture