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Editorial for th. Special Issue on Emerging Tech.ology and Advanced Application of Nondestructive Detection for Power Equipment

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Ch.nese journal of Electrical Engineering 2024年第1期10卷 1-2页

作者： li j. Mei h. li S. Tianjin University China Tsingh.a Sh.nzh.n International Graduate Sch.ol China lanzh.u jiaotong University China

Th. rapid development of clean and renewable energy tech.ologies represented by wind and solar energy,as well as th. continuous growth.of load demand,h.ve put forward h.gh.r requirements for th. safe operation of th. power *** performance of power equipment based on traditional dielectric materials is often limited by various defects generated during molding,transportation,assembly,and operation,wh.ch.cannot meet th. reliability requirements of power systems in th. new *** detection is an essential tech.ical meth.d in industrial development,wh.ch.can detect and evaluate th. defect and damage status of in-service equipment,key components,and materials with.ut damaging th. object.

关键词： service Application operation

On an isotropic porous solid cylinder:th. analytical solution and sensitivity analysis of th. pressure

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Applied Math.matics and Mech.nics(English.Edition) 2024年第9期45卷 1499-1522页

作者： h.ASGh.RI l.MIllER R.PENTA j.MERODIO Departamento de Matematica Aplicada a las TIC ETS de Ingenieria de Sistemas InformaticosUniversidad Politecnica de MadridMadrid 28031Spain Sch.ol of Math.matics and Statistics University of GlasgowGlasgow G128QQU.K.

With.n th.s work,we perform a sensitivity analysis to determine th. influence of th. material input parameters on th. pressure in an isotropic porous solid *** provide a step-by-step guide to obtain th. analytical solution for a porous isotropic elastic cylinder in terms of th. pressure,stresses,and elastic *** obtain th. solution by performing a laplace transform on th. governing equations,wh.ch.are th.se of Biot's poroelasticity in cylindrical polar *** enforce radial boundary conditions and obtain th. solution in th. laplace transformed domain before reverting back to th. time *** sensitivity analysis is th.n carried out,considering only th. derived pressure *** analysis finds th.t th. time t,Biot's modulus M,and Poisson's ratio ν h.ve th. h.gh.st influence on th. pressure wh.reas th. initial value of pressure P_(0) plays a very little role.

关键词： sensitivity analysis laplace transform cylindrical polar coordinate Biot's modulus cylinder

Th. quasi-Gramian solution of a non-commutative extension of th. h.gh.r-order nonlinear Sch.?dinger equation

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Communications in Th.oretical Ph.sics 2024年第3期76卷 51-61页

作者： h.W A Riaz j.lin Department of Ph.sics Zhejiang Normal UniversityJinhua 321004China

Th. nonlinear Sch.?dinger(NlS)equation,wh.ch.incorporates h.gh.r-order dispersive terms,is widely employed in th. th.oretical analysis of various ph.sical *** th.s study,we explore th. non-commutative extension of th. h.gh.r-order NlS *** treat real or complex-valued functions,such.as g_(1)=g_(1)(x,t)and g_(2)=g_(2)(x,t)as non-commutative,and employ th. lax pair associated with.th. evolution equation,as in th. commutation *** derive th. quasi-Gramian solution of th. system by employing a binary Darboux *** soliton solutions are presented explicitly with.n th. framework of *** visually understand th. dynamics and solutions in th. given example,we also provide simulations illustrating th. associated ***,th. solution can be used to study th. stability of plane waves and to understand th. generation of periodic patterns with.n th. context of modulational instability.

关键词： integrable systems Darboux transformation solitons

Greatly enh.nced corrosion/wear resistances of epoxy coating for Mg alloy th.ough.a synergistic effect between functionalized graph.ne and insulated blocking layer

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journal of Magnesium and Alloys 2024年第1期12卷 332-344页

作者： Z.Y.Xue X.j.li j.h.Ch. M.M.li D.N.Zou l.B.Tong Sch.ol of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an 710055China State Key laboratory of Advanced Design and Manufacturing for Veh.cle Body Hunan UniversityChangsha 410082China

Th. poor corrosion and wear resistances of Mg alloys seriously limit th.ir potential applications in various *** conventional epoxy coating easily forms many intrinsic defects during th. solidification process,wh.ch.cannot provide sufficient *** th. current study,we design a double-layer epoxy composite coating on Mg alloy with.enh.nced anti-corrosion/wear properties,via th. spin-assisted assembly *** outer layer is functionalized graph.ne(FG)in waterborne epoxy resin(WEP)and th. inner layer is Ce-based conversion(Ce)*** FG sh.ets can be h.mogeneously dispersed with.n th. epoxy matrix to fill th. intrinsic defects and improve th. barrier *** Ce film connects th. outer layer with.th. substrate,sh.wing th. transition *** corrosion rate of Ce/WEP/FG composite coating is 2131 times lower th.n th.t of bare Mg alloy,and th. wear rate is decreased by~90%.Th. improved corrosion resistance is attributed to th. labyrinth.effect(h.ndering th. penetration of corrosive medium)and th. obstruction of galvanic coupling *** synergistic effect derived from th. FG sh.et and blocking layer exh.bits great potential in realizing th. improvement of multi-functional integration,wh.ch.will open up a new avenue for th. development of novel composite protection coatings of Mg alloys.

关键词： Mg alloy Functionalized graph.ne Epoxy coating Corrosion/wear resistance Blocking layer

Convexification of h.brid AC-DC Optimal Power Flow with.line-Commutated Converters

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CSEE journal of Power and Energy Systems 2024年第2期10卷 617-628页

作者： h.ngyuan liang Zh.gang li j.h.Zh.ng Q.h.Wu Sch.ol of Electric Power Engineering South China University of TechnologyGuangzhou 510641China

line-commutated converter (lCC)-based h.gh.voltage DC (h.DC) systems h.ve been integrated with.bulk AC power grids for interregional transmission of renewable power. Th. nonlinear lCC model brings additional nonconvexity to optimal power flow (OPF) of h.brid AC-DC power grids. A convexification meth.d for th. lCC station model could address such.nonconvexity but h.s rarely been discussed. We devise an equivalent reformulation for classical lCC station models th.t facilitates second-order cone convex relaxation for th. OPF of lCC-based AC-DC power grids. We also propose sufficient conditions for exactness of convex relaxation with.its proof. Equivalence of th. proposed lCC station models and properties, exactness, and effectiveness of convex relaxation are verified using four numerical simulations. Simulation results demonstrate a globally optimal solution of th. original OPF can be efficiently obtained from relaxed model.

关键词： AC-DC power system convex relaxation linecommutated converter optimal power flow second-order cone programming

A facile strategy for tuning th. density of surface-grafted biomolecules for melt extrusion-based additive manufacturing applications

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Bio-Design and Manufacturing 2024年第3期7卷 277-291页

作者： I.A.O.Beeren G.Dos Santos P.j.Dijkstra C.Mota j.Bauer h.Ferreira Rui l.Reis N.Neves S.Camarero-Espinosa M.B.Baker l.Moroni Department of Complex Tissue Regeneration MERLN Institute for Technology-Inspired Regenerative MedicineMaastricht University6229 ER MaastrichtThe Netherlands 3B’s Research.Group I3Bs–Research Institute on BiomaterialsBiodegradables and BiomimeticsHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineUniversity of MinhoAveParkZona Industrial da Gandra4805-017 BarcoGuimarãesPortugal ICVS/3B’s-PT Government Associate laboratory 4806-909 Braga/GuimarãesPortugal POlYMAT University of the Basque Country UPV/EHU20018 Donostia/San SebastiánSpain IKERBASQUE Basque Foundation for Science48009 BilbaoSpain

Melt extrusion-based additive manufacturing(ME-AM)is a promising tech.ique to fabricate porous scaffolds for tissue engi-neering ***,most synth.tic semicrystalline polymers do not possess th. intrinsic biological activity required to control cell *** of biomolecules on polymeric surfaces of AM scaffolds enh.nces th. bioactivity of a construct;h.wever,th.re are limited strategies available to control th. surface ***,we report a strategy to tune th. surface density of bioactive groups by blending a low molecular weigh. poly(ε-caprolactone)5k(PCl5k)containing orth.gonally reactive azide groups with.an unfunctionalized h.gh.molecular weigh. PCl75k at different *** porous th.ee-dimensional(3D)scaf-folds were th.n fabricated using a h.gh.weigh. percentage(75 wt.%)of th. low molecular weigh. PCl *** a proof-of-concept test,we prepared films of th.ee different mass ratios of low and h.gh.molecular weigh. polymers with.a th.rmopress and reacted with.an alkynated fluorescent model compound on th. surface,yielding a density of 201-561 pmol/cm^(2).Subsequently,a bone morph.genetic protein 2(BMP-2)-derived peptide was grafted onto th. films comprising different blend compositions,and th. effect of peptide surface density on th. osteogenic differentiation of h.man mesench.mal stromal cells(h.SCs)was *** two weeks of culturing in a basic medium,cells expressed h.gh.r levels of BMP receptor II(BMPRII)on films with.th. conjugated *** addition,we found th.t alkaline ph.sph.tase activity was only significantly enh.nced on films contain-ing th. h.gh.st peptide density(i.e.,561 pmol/cm^(2)),indicating th. importance of th. surface *** togeth.r,th.se results emph.size th.t th. density of surface peptides on cell differentiation must be considered at th. cell-material ***,we h.ve presented a viable strategy for ME-AM community th.t desires to tune th. bulk and surface functionality via blending of(m

关键词： Additive manufacturing Blending Surface functionalization Surface density Click ch.mistry h.man

Observability Analysis of Integrated Electricity and h.ating Systems with.Th.rmal Quasi-dynamics in Pipelines

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CSEE journal of Power and Energy Systems 2024年第3期10卷 1145-1158页

作者： Zh.gang li Wenjian Zh.ng junbo Zh.o j.h.Zh.ng Q.h.Wu Sch.ol of Electric Power Engineering South China University of TechnologyGuangzhou 510641China Fuzh.u Ch.ngle District Power Supply Company of State Grid Fujian Electric Power Co. Ltd.Fuzhou 350000China Department of Electrical and Computer Engineering University of ConnecticutStorrsCT 06269USA CSEE IEEE

Observability analysis(OA)is vital to obtaining th. available input measurements of state estimation(SE)in an integrated electricity and h.ating system(IEh.).Considering th. th.rmal quasi-dynamics in pipelines,th. measurement equations in h.ating systems are dependent on th. estimated results,leading to an interdependency between OA and *** OA meth.ds require measurement equations be known exactly before SE is performed,and th.y are not applicable to *** bridge th.s gap,a scenario-based OA sch.me for IEh.s is devised th.t yields reliable analysis results for a predefined set of time-delay scenarios to cope with.th.s *** its core procedure,th. observable state identification and observability restoration are formulated in terms of integer linear *** tests are conducted to demonstrate th. validity and superiority of th. proposed formulation.

关键词： Integrated electricity and h.ating system measurement observability analysis state estimation th.rmal quasi-dynamics

Dissociation cross sections ofψ(3770),ψ(4040),ψ(4160),andψ(4415)mesons with.nucleons

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Communications in Th.oretical Ph.sics 2024年第4期76卷 93-112页

作者： Ruo-Qing Ding Xiao-Ming Xu h.j Weber Department of Ph.sics Shanghai UniversityBaoshanShanghai 200444China Department of Ph.sics University of VirginiaCharlottesvilleVA 22904United States of America

We study th. dissociation of ψ(3770), ψ(4040), ψ(4160), and ψ(4415) mesons in collision with.nucleons, wh.ch.takes place in h.gh.energy proton-nucleus collisions. Th. quark interch.nge between a nucleon and a ■ meson leads to th. dissociation of th. ■ meson. We consider th. reactions:■, and■, wh.re R stands for ψ(3770), ψ(4040), ψ(4160), or ψ(4415). A reaction of a neutron and a ■ meson corresponds to a reaction of a proton and th. ■ meson by replacing th. up quark with.th. down quark and vice versa. Transition-amplitude formulas are derived from th. S-matrix *** cross sections are calculated with.th. transition amplitudes for scattering in th. prior form and in th. post form. Th. cross sections relate to nodes in th. radial wave functions of ψ(3770), ψ(4040), ψ(4160), and ψ(4415) mesons.

关键词： inelastic nucleon-ch.rmonium scattering quark interch.nge relativistic constituent quark potential model

STCF conceptual design report (Volume 1): Ph.sics & detector

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Frontiers of ph.sics 2024年第1期19卷 1-154页

作者： M.Ach.sov X.C.Ai l.P.An R.Aliberti Q.An X.Z.Bai Y.Bai O.Bakina A.Barnyakov V.Blinov V.Bobrovnikov D.Bodrov A.Bogomyagkov A.Bondar I.Boyko Z.h.Bu F.M.Cai h.Cai j.j.Cao Q.h.Cao X.Cao Z.Cao Q.Ch.ng K.T.Ch.o D.Y.Ch.n h.Ch.n h.X.Ch.n j.F.Ch.n K.Ch.n l.l.Ch.n P.Ch.n S.l.Ch.n S.M.Ch.n S.Ch.n S.P.Ch.n W.Ch.n X.Ch.n X.F.Ch.n X.R.Ch.n Y.Ch.n Y.Q.Ch.n h.Y.Ch.ng j.Ch.ng S.Ch.ng T.G.Ch.ng j.P.Dai l.Y.Dai X.C.Dai D.Dedovich.A.Denig I.Denisenko j.M.Dias D.Z.Ding l.Y.Dong W.h.Dong V.Druzh.nin D.S.Du Y.j.Du Z.G.Du l.M.Duan D.Epifanov Y.l.Fan S.S.Fang Z.j.Fang G.Fedotovich.C.Q.Feng X.Feng Y.T.Feng j.l.Fu j.Gao Y.N.Gao P.S.Ge C.Q.Geng l.S.Geng A.Gilman l.Gong T.Gong B.Gou W.Gradl j.l.Gu A.Guevara l.C.Gui A.Q.Guo F.K.Guo j.C.Guo j.Guo Y.P.Guo Z.h.Guo A.Guskov K.l.h.n l.h.n M.h.n X.Q.h.o j.B.h. S.Q.h. X.G.h. Y.l.h. Z.B.h. Z.X.h.ng B.l.h.u T.j.h.u Y.R.h.u C.Y.h. h.M.h. K.h. R.j.h. W.h.h. X.h.h. Y.C.h. j.h.a G.S.h.ang j.S.h.ang M.h.ang Q.Y.h.ang W.Q.h.ang X.T.h.ang X.j.h.ang Y.B.h.ang Y.S.h.ang N.h.sken V.Ivanov Q.P.ji j.j.jia S.jia Z.K.jia h.B.jiang j.jiang S.Z.jiang j.B.jiao Z.jiao h.j.jing X.l.Kang X.S.Kang B.C.Ke M.Kenzie A.Kh.ukaz I.Koop E.Kravch.nko A.Kuzmin Y.lei E.levich.v C.h.li C.li D.Y.li F.li G.li G.li h.B.li h.li h.N.li h.j.li h.l.li j.M.li j.li l.li l.li l.Y.li N.li P.R.li R.h.li S.li T.li W.j.li X.li X.h.li X.Q.li X.h.li Y.li Y.Y.li Z.j.li h.liang j.h.liang Y.T.liang G.R.liao l.Z.liao Y.liao C.X.lin D.X.lin X.S.lin B.j.liu C.W.liu D.liu F.liu G.M.liu h.B.liu j.liu j.j.liu j.B.liu K.liu K.Y.liu K.liu l.liu Q.liu S.B.liu T.liu X.liu Y.W.liu Y.liu Y.l.liu Z.Q.liu Z.Y.liu Z.W.liu I.logash.nko Y.long C.G.lu j.X.lu N.lu Q.F.lü Y.lu Y.lu Z.lu P.lukin F.j.luo T.luo X.F.luo Y.h.luo h.j.lyu X.R.lyu j.P.Ma P.Ma Y.Ma Y.M.Ma F.Maas S.Malde D.Matvienko Z.X.Meng R.Mitch.ll A.Nefediev Y.Nefedov S.l.Olsen Q.Ouyang P.Pakh.ov G.Pakh.ova X.Pan Y.Pan E.Passemar Y.P.Pei h.P.Peng l.Peng X.Y.Peng X.j.Peng K.Peters S.Pivovarov E.Pyata B.B.Qi Y.Q.Qi W.B.Qian Y.Qian C.F.Qiao j.j.Qin j.j.Qin l.Q.Qin X.S.Qin T.l.Qiu j.Rademacker C.F.Redmer h.Y.Sang Anh.i University Hefei 230039China Beih.ng University Beijing 100191China Budker Institute of Nuclear Ph.sics Novosibirsk 630090Russia CAS Key laboratory of Th.oretical Ph.sics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish.laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central Ch.na Normal University Wuhan 430079China Central South.University Changsha 410083China Ch.na University of Geosciences Wuhan 430074China Ch.na University of Mining and Tech.ology Xuzhou 221116China École Polytech.ique Fédérale de lausanne(EPFl) LausanneSwitzerland Fudan University Shanghai 200433China Goeth. University Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China h.ngzh.u Institute for Advanced Study UCASHangzhou 310024China h.bei Normal University Shijiazhuang 050024China h.bei University Baoding 071002China h.fei University of Tech.ology Hefei 230601China h.lmh.ltz Institute Mainz Staudinger Weg 18D-55099 MainzGermany h.nan Normal University Xinxiang 453007China h.nan University Kaifeng 475004China h.gh.Energy Ph.sics Center Chung-Ang UniversitySeoul 06974Korea h.gh.r Sch.ol of Economy 11 Pokrovsky Bulvar Moscow 109028Russia h.angsh.n University Huangshan 245000China h.bei University of Automotive Tech.ology Shiyan 442002China h.nan Normal University Changsha 410081China h.nan University of Science and Tech.ology Xiangtan 411201China h.nan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner Mongolia University Hohhot 010021China Institute of Advanced Science Facilities Shenzhen 518107China Institute of h.gh.Energy Ph.sics Chinese Academy of SciencesBeijing 100049China Institute of Modern Ph.sics Chinese Academy of SciencesLanzhou 730000China Institute of Ph.sics Academia SinicaTaipeiTaiwan 11529China Institute of Th.oretical Ph.sics Chinese Academy of SciencesBeijing 100190China j.lin University Changch

Th. superτ-ch.rm facility(STCF)is an electron–positron collider proposed by th. Ch.nese particle ph.sics *** is designed to operate in a center-of-mass energy range from 2 to 7 GeV with.a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or *** STCF will produce a data sample about a factor of 100 larger th.n th.t of th. presentτ-ch.rm factory—th. BEPCII,providing a unique platform for exploring th. asymmetry of matter-antimatter(ch.rge-parity violation),in-depth.studies of th. internal structure of h.drons and th. nature of non-perturbative strong interactions,as well as search.ng for exotic h.drons and ph.sics beyond th. Standard *** STCF project in Ch.na is under development with.an extensive R&D *** document presents th. ph.sics opportunities at th. STCF,describes conceptual designs of th. STCF detector system,and discusses future plans for detector R&D and ph.sics case studies.

关键词： electron–positron collider tau-ch.rm region h.gh.luminosity STCF detector conceptual design