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Journal of System..Science & Com..exity 2024年第1期37卷 136-151页

作者： PAN Zini CHEN Ben m Departm..t of m..hanical and Autom..ion Engineering The Chinese University of Hong KongHong KongChina

In this paper,the authors study the cooperative target-fencing problem..or n-dim..sional system..and a target with a general *** using the velocity of the vehicles,a position feedback control law is proposed to fence the general target into the convex hull form.. by the ***,the dynam..s of each vehicle is described by a double-integrator *** potential functions are designed to guarantee connectivity preservation of the com..nication network and collision avoidance am..g the *** proposed approach can deal with a target whose trajectory is any twice continuously differentiable function of *** effectiveness of the result is verified by a num..ical exam..e.

关键词： m..ti-agent systems networked systems target fencing

m..tivariate form..f Herm..e sam..ing series

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Applied m..hem..ics(A Journal of Chinese Universities) 2024年第2期39卷 253-265页

作者： Rashad m..sharabi Departm..t of m..hem..ics College of Arts and SciencesNajran UniversityNajranSaudi Arabia

In this paper,we establish a new m..tivariate Herm..e sam..ing series involving sam..es from..he function itself and its m..ed and non-m..ed partial derivatives of arbitrary *** m..tivariate form..f Herm..e sam..ing will be valid for som..classes of m..tivariate entire functions,satisfying certain growth *** will show that m..y known results included in Com..n Korean m..h Soc,2002,17:731-740,Turk J m..h,2017,41:387-403 and Filom..,2020,34:3339-3347 are special cases of our ***,we estim..e the truncation error of this sam..ing based on localized sam..ing without decay *** exam..es are also presented.

关键词： m..tidim..sional sam..ing series sam..ing with partial derivatives contour integral truncation error

Pair of dyon production near m..netized dyonic Reissner-Nordstrom..lack holes

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Chinese Physics C 2024年第5期48卷 257-271页

作者： Haryanto m..iahaan Jurusan Fisika Universitas Katolik ParahyanganJalan Ciumbuleuit 94Bandung 40141Indonesia

We investigate the phenom..on of pair production of m..sive scalar particles with m..netic charge near the horizon of a m..netized dyonic Reissner-Nordstrom..lack *** intrinsic sym..try between the electric and m..netic quantities in the Einstein-m..well equations suggests that the pair can be generated through Hawking radiation and the Schwinger effect,provided that the Dirac quantization condition is satisfied.

关键词： Dyon pair production black hole

Probing turbulence in galaxies with fast radio burst scintillation

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Science China(Physics,m..hanics & Astronom.. 2024年第1期67卷 177-178页

作者： Jam.. m..ordes Departm..t of Astronomy the Cornell Center for Astrophysics and Planetary ScienceCornell UniversityIthaca NY 14853USA

Interstellar scintillation(ISS)is a well-known phenom..on observed from..ulsars in the m..ky *** com..ises intensity variations *** and frequency caused by constructive and destructive interference from..ultipath propagation,which is due to diffraction from..luctuations in electron density in the interstellar m..ium..Sm..n scales as sm..l as~100 *** density fluctuations appear to be part of a turbulence process com..ned with discrete structures in electron density from..ther astrophysical processes;together these fluctuations extend to scales of pc or larger.

关键词： scales galaxies turbulence

Consum.. transparency in the production chain for plant varieties produced using new genom.. techniques

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aBIOTECH 2024年第2期5卷 239-246页

作者： J.m..ukasiewicz C.C.m..an de Wiel L.A.P.Lotz m...m..m..ders Wageningen University&Research P.O.Box 386NL-6700 AJ WageningenThe Netherlands

Plants edited with new genom.. techniques(NGTs)currently fall under the Genetically m..ified Organism..Directive(2001/18/EC)in the European *** the proposal of the European Com..ssion,NGT plants are partially exem..ed from..he regulations of this *** proposal m..es a distinction between two categories of NGT plants:NGT-1 and ***-1 category plants are considered equal to plants obtained through conventional breeding *** plants will not be labelled for the consum..,although they will be labelled as ***-2 category plants m.. be labelled with additional inform..ion as a positive *** of seeds of varieties m..e with gene editing,but not the products,would m..n that m..t steps in the production chain are transparent,but not the last step towards ***“right to know”and increasing knowledge of gene-edited food is a com..n them..in food labelling towards ***,we describe current labelling regim.. and registers and how these m.. be applied to provide transparency on gene-edited products to ***,we also look into consum.. studies,which indicate a greater acceptance of gene-edited food am..g consum..s,especially when additional benefits such as sustainability are m..tioned.

关键词： Labelling New genom.. techniques Consum.. transparency Plant products

On calculating glacial isostatic adjustm..t

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Geodesy and Geodynam..s 2024年第5期15卷 441-452页

作者： L.m..athles Cornell University IthacaNY 14853USA

m..eling the earth's fluid and elastic response to the m..ting of the glaciers of the last ice age is the m..t direct way to infer the earth's radial viscosity ***,we com..re two m..hods for calculating the viscoelastic response to surface *** one,the elastic equation of m..ion is converted to a viscoelastic equation using the Correspondence *** the other,elastic deform..ion is added to the viscous flow as isostatic adjustm..t *** two m..eling m..hods predict adjustm..t histories that are different enough to potentially im..ct the interpretation of the observed glacial isostatic adjustm..t(GIA).The differences arise from..uoyancy and whether fluid displacem..ts are subjected to hydrostatic *** m..hods agree if they use the sam..equations and boundary *** origin of the differences is determ..ed by varying the boundary conditions and pre-stress application.

关键词： Glacial isostatic adjustm..t Viscoelastic norm.. m..es Hydrostatic pre-stress Elastic buoyancy Correspondence principle

QCD sum..ule study of J^(P)=1^(±)exotic states with two heavy quarks in the m..ecular picture

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Chinese Physics C 2024年第6期48卷 31-37页

作者： T.m..liev S.Bilm.. m..avcı Departm..t of Physics Middle East Technical UniversityAnkara06800Turkey TUBITAK ULAKBIm Ankara06510Turkey

In this study,the spectroscopic param..ers of exotic m..ecular states com..sed of m..ons containing two heavy quarks(scalar-axial and pseudoscalar-axial m..on com..nations)are investigated within the QCD sum..** findings reveal that m..ecular states containing charm..uarks do not form..ound states,whereas states with b-quarks can form..xotic m..ecular *** observation has significant im..ications for understanding the structure of these exotic states.

关键词： QCD sum..ules exotic m..ons m..ecular states

Analysis of strong decays of SU(3)partners ofΩ(2012)baryon

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Chinese Physics C 2024年第8期48卷 34-41页

作者： T.m..liev S.Bilm.. m..avci Departm..t of Physics Middle East Technical UniversityAnkara 06800Turkey TUBITAK ULAKBIm Ankara 06510Turkey

We estim..e the coupling constants and decay widths of the SU(3)partners of theΩ(2012)hyperon,as discovered by the BELLE Collaboration,using the distribution am..itudes of the octet baryons within the light cone sum..ules *** study includes a com..rison of the obtained results for the relevant decay widths with those derived within the fram..ork of the flavor SU(3)*** observe a good agreem..t between the predictions of both ***,our result on the decay width ofΩ→ΞK is com..tible with the existing experim..tal result within the uncertainties of the m..el *** results can provide helpful insights for determ..ing the nature of the SU(3)partners of theΩ(2012)baryon.

关键词： coupling constants light cone sum..ule hyperon

Pile foundation in alternate layered liquefiable and non-liquefiable soil deposits subjected to earthquake loading

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Earthquake Engineering and Engineering Vibration 2024年第2期23卷 359-376页

作者： Praveen Huded m..uresh R Dash LEA Associates South East Asia Pvt.Ltd. New Delhi 110044India Indian Institute of Technology Bhubaneswar Khurda 752050India

Pile foundations are still the preferred foundation system..or high-rise structures in earthquake-prone *** foundations have experienced failures in past earthquakes due to *** on pile foundations in liquefiable soils has prim..ily focused on the pile foundation behavior in two or three-layered soil ***,in natural occurrence,it m.. occur in alternative layers of liquefiable and non-liquefiable ***,the experim..tal and/or num..ical studies on the layered effect on pile foundations have not been widely addressed in the *** of the design codes across the world do not explicitly m..tion the effect of sandwiched non-liquefiable soil layers on the pile *** the present study,the behavior of an end-bearing pile in layered liquefiable and non-liquefiable soil deposit is studied *** study found that the kinem..ic bending m..ent is higher and governs the design when the effect of the sandwiched non-liquefied layer is considered in the analysis as opposed to when its effect is ***,ignoring the effect of the sandwiched non-liquefied layer in a liquefiable soil deposit m..ht be a nonconservative design approach.

关键词： pile foundation liquefaction alternately layered soil fixity effect layered effect

m..netic,dielectric and electrical m..ulus of Ce^(3+) doped cobalt-m..nesium..errite nanoparticles

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Journal of Rare Earths 2024年第2期42卷 373-382,I0005页

作者： N.m..asfer Hanaa Alm..ham.. Departm..t of Physics Umm AL-Qura UniversityMakkahSaudi Arabia Physics Departm..t College of Science and ArtKing Abdulaziz UniversityPOB344Rabigh291Saudi Arabi

In this work,the m..netic,dielectric properties and electric m..ulus of Ce^(3+) substituted cobaltm..nesium..o_(0.7)m..(0.3)Ce_(x)Fe_(2-x)O_4)(labeled as Cm..) ferrite nanoparticles were investigated in *** m..netization decreases from..0.05 to 34.87 em..g for further substituting Ce^(3+) ***,coercivity increases from..38.22 Gs for the Cm..O sam..e to 912.10 Gs for the Cm..2 sam..e,then decreases m..otonically to 762.1 Gs for the Cm..5 *** cerium..ontent and particle size play im..rtant roles in controlling the m..netization and coercivity of the Cm.. *** Cm.. nanoferrites are suitable for m..rowave applications since their high-frequency response ranges from...72 to 11.07 *** Cm.. nanoferrites' dielectric param..er dispersion exhibits norm.. *** pristine Co-m..nanoferrite only has ε' value of 28.25,but the nanoferrite m..F2 has ε' value of365.03,with an enhancing ratio of 1192%.The conduction m..hanism..f the m..F nanoferrites was determ..ed by fitting the σ_(ac) results via the Jonscher power *** 653 K,large polaron tunnelling is thought to be responsible for this conduction process,which is followed by electron barrier hopping at higher ***-Cole diagram..at different tem..ratures,assuring the contributions of the grains and their boundaries at lower tem..ratures(653 K) and only the grains at higher *** on our results,the Cm.. nanoferrites hold m..netic and sem..onducting nature,which can be used in m..netic devices and dielectrics in lower-frequencies or conductors in higher-frequencies.

关键词： Nanoferrites Rare earth ions m..netic properties Dielectric param..ers Im..dance spectroscopy