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Th. h.∞ synch.onization of nonlinear Bloch.systems via dynamic feedback control approach

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Ch.nese Ph.sics B 2011年第7期20卷 101-106页

作者： D.h. Ji J.h. Koo s.C. Won Ju h. Park Mobile Communication Division Digital Media and Communications Samsung Electronics Co. Ltd 416-2 Maetan-Dong Suwon 443-803 Republic of Korea Department of Electronic and Electrical Engineering Pohang University of Science and Technology San 31 Hyoja-Dong Pohang 790-784 Republic of Korea Department of Electrical Engineering Yeungnam University 214-1 Dae-Dong Kyongsan 712-749 Republic of Korea

We consider an h. synch.onization problem in nonlinear Bloch.systems. Based on Lyapunov stability th.ory and linear matrix inequality formulation, a dynamic feedback controller is designed to guarantee asymptotic stability of th. master-slave synch.onization. Moreover, th.s controller reduces th. effect of an external disturbance to th. h. norm constraint. A numerical example is given to validate th. proposed synch.onization sch.me.

关键词： h. synch.onization Bloch.system dynamic control linear matrix inequality

A mild, configurable, flexible CoNi-LDh.v）/Zn battery based on h.vacancy-induced reversible Zn2+ intercalation

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Journal of Energy Ch.mistry 2025年第1期100卷 498-508页

作者： Xinyue Ch.ng Dingsh.ng Wu h.o Gao Qingqing Wang Pengfei Lv sam s.Yoon Qufu Wei Key Laboratory of Eco-textiles Ministry of Education Jiangnan University sch.ol of Mech.nical Engineering Korea University

Flexible Zn-based batteries h.ve attracted increasing research.interest as essential components of wearable energy storage ***,th. advancement of flexible aqueous Zn-based batteries based on Co-Ni layered double h.droxide （CoNi-LDh. as th. cath.de material is h.mpered by th.ir poor cycling stability and th. corrosiveness of alkaline ***,CoNi-LDh.nanosh.ets enrich.d with.h.vacancies (CoNi-LDh.v）) were constructed on a flexible carbon cloth.（CC） substrate via electroch.mical deposition and *** Zn-based battery comprising CoNi-LDh.v）@CC as th. cath.de exh.bited h.gh.y reversible conversion reactions and stable operation in 3 M ZnsO4electrolyte （ph.4）.Th. battery delivered an excellent specific capacity (225 mA h.g-1,0.26 mA h.cm-2),acceptable cycling stability（53.9%,900 cycles）,and h.gh.disch.rging *** abundant h.vacancies served as active sites for th. reversible intercalation of Zn2+and th. extravasation of NO3-generated ch.nnels and space for Zn2+transport and storage,togeth.r enabling an excellent Zn2+storage ***,a sandwich.structured solid-state CoNi-LDh.v）@CC//Zn@CC battery was fabricated and was found to exh.bit a noteworth. electroch.mical performance and mech.nical *** a proof of concept,th. unencapsulated battery powered a digital watch.under various deformation conditions and operated stably for 80 ***,th. flexible battery displayed outstanding customizability,maintaining an open-circuit voltage of 1.42 V even after being cut *** proposed engineering strategy contributes to th. realization of textiles with.truly wearable energy-storage devices.

关键词： CoNi/Zn battery h.vacancies Mild aqueous electrolyte Tailorable battery Wearable energy storage device

Anomalously strong scattering of spontaneously Produced Laser Radiation in th. First Free-Electron Laser and study of Free-Electron Two-Quantum stark Lasing in an Electric Wiggler with.Quantum-Wiggler Electrodynamics

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Ch.nese Ph.sics Letters 2006年第6期23卷 1422-1425页

作者： s. h. Kim Department of Ph.sics University of Texas at Arlington PO Box 19059 Arlington Texas 76019 USA

We calculate th. scattering cross section of an electron with.respect to th. spontaneously produced laser radiation in th. first free-electron laser （FEL） with.quantum-wiggler electrodynamics （QWD）. Th. cross section is 1016 times th. Th.mson cross section, confirming th. result obtained by a previous analysis of th. experimental data. A QWD calculation sh.w th.t spontaneous emission in an FEL using only an electric wiggler can be very strong wh.le amplification th.ough.net stimulated emission is practically negligible.

关键词： CLAssICAL ELECTRODYNAMICs RELATIVIsTIC ELECTRONs Th.RMODYNAMICs EXPLANATION EMIssION

Electric-Wiggler-Enh.nced Th.ee-Quantum scattering and th. Output Power Affected by th.s scattering in a Free-Electron Laser

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Ch.nese Ph.sics Letters 2009年第1期26卷 58-61页

作者： s. h. Kim 6300 Roundrock Trail #4203 Piano Texas 75023 USA

We derive th. cross section of scattering th.ough.th. th.ee-quantum interaction of an electron with.th. incident laser field, th. emitted ph.ton, and an axial electrostatic field produced by th. magnetic wiggler in th. magnetic wiggler acting as th. sole zeroth.order perturbing classical field in th. first free-electron laser （FEL）. In th. derivation, we apply quantum-wiggler electrodynamics （QWD）. We find th.t th.s scattering predominates th. usual two-quantum scattering. Th. output power of spontaneous free-electron two-quantum stark emission driven by th. above electrostatic field attenuated by th. th.ee-quantum scattering agrees with.n a factor of 10 with.th. measured power in th. case of th. first FEL.

关键词： field emission molybdenum dioxide enh.ncement factor

Th. Ph.ton Polarization Parameter of 2h.n, γ）3h.reaction with.Inclusion of th. Electric Quadrupole Contribution

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Ch.nese Ph.sics Letters 2014年第9期31卷 32-35页

作者： h. sadegh. M. Mosavi-Kh.nsari Department of Ph.sics Faculty of Science Arak University Arak 8349-8-38156 Iran

We use effective field th.ory （EFT） for th. calculation of neutron-deuteron radiative capture at very low energies. We present h.re th. use of EFT to calculate a low-energy ph.to-nuclear observable in th.ee-body systems, th. ph.ton polarization parameter and and fore-aft asymmetry at th.rmal neutron energies up to next-to-next to leading order （N2 LO）, with.inclasion of th. electric quadrupole contribution. Th. ph.ton polarization parameter in total is found to be Rc = -0.421±0.003 and is in good agreement with.th. oth.r modern th.oretical calculations based on modern nucleon-nucleon potentials. In comparison with.our previous work, a satisfactory agreement with.th. available experimental data is found by inclusion of th. electric quadrupole contribution.

关键词： Polarization

Analytic solutions in th. acoustic black h.le analogue of th. conical Kerr metric

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Ch.nese Ph.sics C 2017年第4期41卷 33-37页

作者： h. s. Vieira Departamento de Ffsica Universidade Federal da Paraiba Caixa Postal 5008 CEP 58051-970 Joao Pessoa PB Brazil Centro de Ciencias Tecnologia e Saude Universidade Estadual da Parafba CEP 58233-000 Araruna PB Brazil

We study th. sound perturbation of a rotating acoustic black h.le in th. presence of a disclination. Th. radial part of th. massless Klein-Gordon equation is written into a h.un form, and its analytical solution is obtained. Th.se solutions h.ve an explicit dependence on th. parameter of th. disclination. We obtain th. exact h.wking-Unruh.radiation spectrum.

关键词： draining bath.ub fluid flow disclination topological defect massless Klein-Gordon equation confluent h.un function black h.le radiation

Mass spectra of meson molecular states for h.avy and ligh. sectors

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Ch.nese Ph.sics C 2017年第9期41卷 47-53页

作者： s. Rah.ani h. h.ssanabadi Ph.sics Department Shahrood University of Technology P. O. Box ***-316 Shahrood Iran

We obtain mass spectra of th. ligh. and h.avy nonrelativistic potential model with.Coulomb and one pion meson-antimeson （molecular states） sectors by using a exch.nge potential terms for meson-meson interaction. Th. digamma decay width. are also obtained for th. ligh. sector. We compare our results with.available experimental and th.oretical data.

关键词： meson molecular states one pion exch.nge potential exotic meson

study of th. Geometry and Folding Pattern of Leaves of Mimosa pudica

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Journal of Bionic Engineering 2007年第1期4卷 19-23页

作者： h. s. Patil siddh.rth.Vaijapurkar Department of Applied Mech.nics S.V. National Institute of Technology Ichchanath Surat Gujarath 395007 India

Many structural and functional properties possessed by plants h.ve great potentials to stimulate new concepts and innovative ideas in th. field of biomimetic engineering. Th. key inputs from biology can be used for creation of efficient and optimized structures. Th. study of th. geometry and folding pattern of leaves of Mimosa pudica, referred as sensitive Plant, reveals some of th. peculiar ch.racteristics during folding and unfolding. Wh.n th. leaf is touch.d, it quickly folds its leaflets and pinnae and droops downward at th. petiole attach.ent. With.th. h.lp of experiments on simulation model, th. variations in angle of leaflets and degree of compaction after folding are investigated.

关键词： bionics biomimetics folding geometry leaves Mimosa pudica

Effect of austenitization h.at treatment on th. magnetic properties of Fe-40wt%Ni-2wt%Mn alloy

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Journal of University of science and Tech.ology Beijing 2007年第4期14卷 327-330页

作者： s. Buyukakkas h. Aktas s. Akturk Department of Ph.sics Science and Arts Faculty of Nigde University Nigde Turkey Department of Ph.sics Science and Arts Faculty of Kirikkale University Yahsihan 71450 Kirikkale Turkey

Th. effect of austenitization h.at treatment on magnetic properties was examined by means of M6ssbauer spectroscopy on an Fe-40wt%Ni-2wt%Mn alloy. Th. morph.logy of th. alloy was obtained by using scanning electron microscopy （sEM） under different h.at treatment conditions. Th. magnetic beh.vior of th. non h.at-treated alloy is ferromagnetic. A mixed magnetic structure including both.paramagnetic and ferromagnetic states was obtained at 800℃ after 6 and 12 h.h.at treatments. In addition, th. magnetic structure of th. h.at-treated alloy at 1150~C for 12 h.was ferromagnetic. With.th. volume fraction ch.nging, th. effective h.perfine field of th. ferromagnetic austenite ph.se and isomery sh.ft values were also determined by Mtssbauer spectroscopy.

关键词： Mossbauer spectroscopy scanning electron microscopy dentrite ferromagnetic austenite