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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

Blockade of Rh.-associated kinase prevents inh.bition of axon regeneration of periph.ral nerves induced by anti-ganglioside antibodies

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Neural Regeneration Research 2024年第4期19卷 895-899页

作者： Andrés Berardo Cristian R.Bacaglio Bárbara B.Báez Rubén Sambuelli Kazim A.Sh.ikh.Pablo h.h.Lopez Laboratorio de Neurobiología Instituto de Investigación Médica Mercedes y Martin Ferreyra(INIMEC)-Consejo Nacional de Investigaciones Cientificas y Técnicas(CONICET)Universidad Nacional de Córdoba Departamento de Química Biológica-Centro de Investigaciones en Química Biológica de Córdoba(CIQUIBIC)-Consejo Nacional de Investigaciones Cientificas y Técnicas(CONICET) Facultad de Cs.QuímicasUniversidad Nacional de Córdoba Servicio de Anatomía Patológica Clínica Universitaria Reina FabiolaUniversidad Católica de Córdoba Department of Neurology University of Texas Medical School at Houston

Anti-ganglioside antibodies are associated with.delayed/poor clinical recovery in Guillain-Barrèsyndrome,mostly related to h.lted axon ***-linking of cell surface gangliosides by anti-ganglioside antibodies triggers inh.bition of nerve repair in in vitro and in vivo paradigms of axon *** effects involve th. activation of th. small GTPase Rh. A/ROCK signaling path.ays,wh.ch.negatively modulate growth.cone cytoskeleton,similarly to well stablish.d inh.bitors of axon regeneration described so *** aim of th.s work was to perform a proof of concept study to demonstrate th. effectiveness of Y-27632,a selective ph.rmacological inh.bitor of ROCK,in a mouse model of axon regeneration of periph.ral nerves,wh.re th. passive immunization with.a monoclonal antibody targeting gangliosides GD1a and GT1b was previously reported to exert a potent inh.bitory effect on regeneration of both.myelinated and unmyelinated *** results demonstrate a differential sensitivity of myelinated and unmyelinated axons to th. pro-regenerative effect of *** with.a total dosage of 9 mg/kg of Y-27632 resulted in a complete prevention of anti-GD1a/GT1b monoclonal antibody-mediated inh.bition of axon regeneration of unmyelinated fibers to skin and th. functional recovery of mech.nical cutaneous *** contrast,th. same dose sh.wed toxic effects on th. regeneration of myelinated ***,scale down of th. dosage of Y-27632 to 5 mg/kg resulted in a significant alth.ugh.not complete recovery of regenerated myelinated axons exposed to anti-GD1a/GT1b monoclonal antibody in th. absence of toxicity in animals exposed to only ***,th.se findings confirm th. in vivo participation of Rh. A/ROCK signaling path.ays in th. molecular mech.nisms associated with.th. inh.bition of axon regeneration induced by anti-GD1a/GT1b monoclonal *** findings open th. possibility of th.rapeutic ph.rmacological intervention targeting Rh. A/R

关键词： anti-ganglioside antibodies anti-glycan antibodies axon regeneration ganglioside Guillain-Barrésyndrome nerve repair ROCK Y-27632

Th. effect of particle size and amount of inoculum on fungal treatment of wh.at straw and wood ch.ps

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Journal of Animal Science and Biotech.ology 2017年第1期8卷 217-225页

作者： Sandra J. A. van Kuijk Anton S. M. Sonnenberg Joh.n J. P. Baars Wouter h. h.ndriks Joh. W. cone Animal Nutrition Group Wageningen University De Elst 1 6708WD Wageningen The Netherlands Plant Breeding Wageningen University Droevendaalsesteeg 1 6708PB Wageningen The Netherlands

Background： Th. aim of th.s study was to optimize th. fungal treatment of lignocellulosic biomass by stimulating th. colonization. Wh.at straw and wood ch.ps were treated with.Ceriporiopsis subvermispora and Lentinula edodes with.various amounts of colonized millet grains（0.5, 1.5 or 3.0 % per g of wet weigh. of substrate） added to th. substrates. Also, wh.at straw and wood ch.ps were ch.pped to eith.r 0.5 or 2 *** of th. fungal treatment after 0, 2, 4, 6, or 8 wk of incubation was determined by ch.nges in ch.mical composition, in vitro gas production（IVGP） as a measure for rumen degradability, and ergosterol content as a measure of fungal ***： Incomplete colonization was observed for C. subvermispora treated wh.at straw and L. edodes treated wood ch.ps. Th. different particle sizes and amounts of inoculum tested, h.d no significant effects on th. ch.mical composition and th. IVGP of C. subvermispora treated wood ch.ps. Particle size did influence *** treatment of wh.at straw. Th. L. edodes treatment of 2 cm wh.at straw resulted in a more selective delignification and a h.gh.r IVGP th.n th. smaller particles. Addition of 1.5 % or 3 % L. edodes inoculum to wh.at straw resulted in more selective delignification and a h.gh.r IVGP th.n addition of 0.5 % ***： Particle size and amount of inoculum did not h.ve an effect on C. subvermispora treatment of wood ch.ps. At least 1.5 % L. edodes colonized millet grains sh.uld be added to 2 cm wh.at straw to result in an increased IVGP and acid detergent lignin（ADL） degradation.

关键词： Amount of inoculum Fungal treatment In vitro rumen degradability Lignin degradation Lignocellulosic biomass Particle size

Extraterrestrial Life in th. Th.rmosph.re: Plasmas, UAP, Pre-Life, Fourth.State of Matter

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Journal of Modern Ph.sics 2024年第3期15卷 322-376页

作者： R. Joseph.C. Impey O. Planch.n R. del Gaudio M. Abu Safa A. R. Sumanarath.a E. Ansbro D. Duvall G. Bianciardi C. h. Gibson R. Sch.ld Astrobiology Research.Center California USA Department of Astronomy University of Arizona Tucson USA Biogéosciences Laboratory University of Burgundy Dijon France Department of Biology University of Naples Federico II Naples Italy Department of Applied Ph.sics Palestine Polytechnic University Hebron Palestine Department of Research.and Innovation Eco Astronomy International Research Center Tetouan Morocco Space Exploration Ltd. Boyle County Roscommon Ireland Department of Zoology Oklahoma State University (Emeritus) Stillwater USA Department of Science and Medicine Università Degli Studi di Siena Tuscany Italy Center for Astroph.sics and Space Sciences University of California (Emeritus) San Diego USA Center for Astroph.sics Harvard-Smithsonian (Emeritus) Cambridge USA

“Plasmas” up to a kilometer in size and beh.ving similarly to multicellular organisms h.ve been filmed on 10 separate NASA space sh.ttle missions, over 200 miles above Earth.with.n th. th.rmosph.re. Th.se self-illuminated “plasmas” are attracted to and may “feed on” electromagnetic radiation. Th.y h.ve different morph.logies: 1) cone, 2) cloud, 3) donut, 4) sph.rical-cylindrical;and h.ve been filmed flying towards and descending from th. th.rmosph.re into th.nderstorms;congregating by th. h.ndreds and interacting with.satellites generating electromagnetic activity;approach.ng th. Space Sh.ttles. Computerized analysis of fligh. path.trajectories documents th.se plasmas travel at different velocities from different directions and ch.nge th.ir angle of trajectory making 45°, 90°, and 180° sh.fts and follow each.oth.r. Th.y’ve been filmed accelerating, slowing down, stopping, congregating, engaging in “h.nter-predatory” beh.vior and intersecting plasmas leaving a plasma dust trail in th.ir wake. Similar life-like beh.viors h.ve been demonstrated by plasmas created experimentally. “Plasmas” may h.ve been ph.tograph.d in th. 1940s by WWII pilots (identified as “Foo figh.ers”);repeatedly observed and filmed by astronauts and military pilots and classified as Unidentified Aerial—Anomalous Ph.nomenon. Plasmas are not biological but may represent a form of pre-life th.t via th. incorporation of elements common in space, could result in th. synth.sis of RNA. Plasmas constitute a fourth.state of matter, are attracted to electromagnetic activity, and wh.n observed in th. lower atmosph.re likely account for many of th. UFO-UAP sigh.ings over th. centuries.

关键词： Extraterrestrials Plasmas Dusty Plasmas Extremoph.les Life in Space Abiogenesis Origins of Life RNA World

Adaptive selective ES-FEM limit analysis of cracked plane-strain structures

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Frontiers of Structural and Civil Engineering 2015年第4期9卷 478-490页

作者： h. NGUYEN-XUAN T. RABCZUK Center for Interdisciplinary Research.in Tech.ology Ho Chi Minh City University of Technology (HUTECH) vietnam Institute of Structural Mech.nics Bauhaus-Universitat Weimar Weimar 99423 Germany

Th.s paper presents a simple and efficient approach.for predicting th. plastic limit loads in cracked plane-strain structures. We use two levels of mesh.repartitioning for th. finite element limit analysis. Th. master level h.ndles an adaptive primal-mesh.process th.ough.a dissipation-based indicator. Th. slave level performs th. subdivision of each.triangle into th.ee sub-triangles and constitutes a dual mesh.from a pair of two adjacent sub-triangles sh.red by common edges of th. primal mesh. Applying a strain smooth.ng projection to th. strain rates on th. dual mesh. th. incompressibility constraint and th. flow rule constraint are imposed over th. edge-based smooth.ng domains and everywh.re in th. problem domain. Th. limit analysis problem is recast into th. compact form of a second-order cone programming (SOCP) for th. purpose of exploiting interior-point solvers. Th. present meth.d retains a low number of optimization variables. It offers a convenient way for designing and solving th. large-scale optimization problems effectively. Several bench.ark examples are given to sh.w th. simplicity and effectiveness of th. present meth.d.

关键词： cracked structure limit analysis von Mises criterion edge-based strain smooth.ng second-order cone programming adaptive

Fractional Ablative Radio-Frequency Resurfacing in Asian and Caucasian Skin: A Novel Meth.d for Deep Radiofrequency Fractional Skin Rejuvenation

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Journal of Cosmetics, Dermatological Sciences and Applications 2012年第3期2卷 144-150页

作者： R. Steph.n Mulh.lland D. h. Ah. Mich.el Kreindel malcolm Paul Daeyoung Plastic Surgery Practice Seoul South Korea Department of Surgery Aesthetic and Plastic Institute University of California Irvine California Invasix Ltd. Toronto Canada Private Plastic Surgery Practice Toronto Canada

Th.s paper reports th. clinical experience of a multi-center, multiple ph.sician trial with.a novel fractional radiofrequency ablative skin resurfacing and rejuvenation device (Fractora, Invasix, Israel) deployed on both.Caucasian skin types I - III and Asian skin type IV. h.stological study demonstrated deep ablation and collagen restructuring in th. papillary and reticular dermis. Th. Fractora device combines th. more “cone sh.ped” ablation seen with.CO2 and Erbium lasers with.a deep non-ablative h.ating pattern, seen with.oth.r bipolar RF fractional needle resurfacing devices. Ablation, coagulation zones and h.aling dynamics are analyzed for different energy settings. Two different treatment protocols are suggested: one for ligh. skin and th.n one for darker skin with.a h.gh.r risk of post-inflammatory h.pperpigmentation. Treatment results sh.w improvement in skin texture, pores, wrinkles and skin dysch.omia.

关键词： Skin Resurfacing Skin Rejuvenation Fractional Treatment

Selective ligninolysis of wh.at straw and wood ch.ps by th. wh.te-rot fungus Lentinula edodes and its influence on in vitro rumen degradability

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Journal of Animal Science and Biotech.ology 2017年第2期8卷 391-404页

作者： Sandra J.A.van Kuijk José C.del Río Jorge Rencoret Ana Gutiérrez Anton S.M.Sonnenberg Joh.n J.P.Baars Wouter h.h.ndriks Joh. W.cone Animal Nutrition Group Wageningen UniversityDe Elst 16708 WD WageningenThe Netherlands Instituto de Recursos Naturales y Agrobiologica de Sevilla(IRNAS-CSIC) Avenida Reina Mercedes1042012 SevilleSpain Plant Breeding Wageningen UniversityDroevendaalsesteeg 16708 PB WageningenThe Netherlands

Background： Th. present work investigated th. influence of lignin content and composition in th. fungal treatment of lignocellulosic biomass in order to improve rumen degradability. Wh.at straw and wood ch.ps,differing in lignin composition, were treated with.Lentinula edodes for 0, 2, 4, 8 and 12 wk and th. ch.nges occurring during fungal degradation were analyzed using pyrolysis-gas ch.omatograph.-mass spectrometry and detergent fiber ***： L. edodes preferentially degraded lignin, with.only limited cellulose degradation, in wh.at straw and wood ch.ps, leaving a substrate enrich.d in cellulose. Syringyl（S）-lignin units were preferentially degraded th.n guaiacyl（G）-lignin units, resulting in a decreased S/G ratio. A decreasing S/G ratio（wh.at straw： r =-0.72, wood ch.ps： r =-0.75） and selective lignin degradation（wh.at straw： r =-0.69, wood ch.ps： r =-0.88） were correlated with.in vitro gas production（IVGP）, a good indicator for rumen ***： L. edodes treatment increased th. IVGP of wh.at straw and wood ch.ps. Effects on IVGP were similar for wh.at straw and wood ch.ps indicating th.t lignin content and 3D-structure of cell walls influence in vitro rumen degradability more th.n lignin composition.

关键词： Fungal treatment In vitro rumen degradability Lignocellulosic biomass Py-GC/MS

STUDY ON Th. NUMERICAL SIMULATION OF MULTI-STAGE ROTARY FORGING OF A NON-AXISYMMETRIC PART AND Th. CAE ANALYSIS OF Th. DIE STRENGTh

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Acta Metallurgica Sinica(English.Letters) 2005年第5期18卷 627-634页

作者： h. Tian J. Wang W.P. Dong J. Ch.n Z. Zh.o G.M. Wu National Die ＆ Mold CAD Engineering Research.Center Shanghai Jiaotong UniversityShanghai 200030 China

Traditionally a rotary forging process is a kind of metal forming meth.d wh.re a conic upper die, wh.se axis is deviated an angle from th. axis of mach.ne, forges a billet continuously and partially to finish.th. wh.le deformation. For th. rotary forging process simulation, more research.s were focused on simulating th. simple stage forming process with.axisymmetric part geometry. Wh.reas in th.s paper, th. upper die is not cone-sh.ped, and th. billet is non-axisymmetric. So th. movement of th. punch.is much.more complicated th.n ever. Th. 3D FEM simulation models for th. preforming ＆ final forming processes are set up aider carefully studying th. complicated movement pattern. Deform-3D is used to simulate th. material flow, and th. boundary nodal resisting forces calculated by th. final stage process simulation is used to analyze th. final forming die strength. Th. CAE analysis of th. die sh.ws th.t th. design of th. final forming die is not reasonable with.lower pre-stress wh.ch.is easy to crack at th. critical corners. An optimum die design is also provided with.h.gh.r pre-stress, and verified by CAE analysis.

关键词： numerical simulation non-axisymmetric rotary forging die strength

异基因骨髓移植后小鼠虹膜睫状体内抗原递呈细胞的分布

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郑州大学学报（医学版） 2005年第4期40卷 646-649,F004页

作者：李醒亚申淑景王力平 Rorbert E.cone 郑州大学第一附属医院肿瘤科郑州450052 郑州大学第一附属医院光子刀中心郑州450052 康涅狄格州大学健康中心遗传发育生物系康涅狄格州大学健康中心病理科

目的:观察异基因骨髓移植后小鼠虹膜睫状体内抗原递呈细胞(APC)的分布情况。方法:绿色荧光蛋白(GFP)转基因C57BL/6J(h.2b)小鼠作为供体,经5.5Gy×2剂量照射24h.BALB/c(h.2d)小鼠作为宿主,于骨髓移植后21d和35d取出宿主小鼠眼球,分离得... 详细信息

目的:观察异基因骨髓移植后小鼠虹膜睫状体内抗原递呈细胞(APC)的分布情况。方法:绿色荧光蛋白(GFP)转基因C57BL/6J(h.2b)小鼠作为供体,经5.5Gy×2剂量照射24h.BALB/c(h.2d)小鼠作为宿主,于骨髓移植后21d和35d取出宿主小鼠眼球,分离得到虹膜睫状体,荧光显微镜下观察供体骨髓来源的细胞分布。同时采用免疫组织化学染色方法观察普通和移植后小鼠F4/80阳性细胞在虹膜中的分布规律。结果:异基因骨髓移植后21d和35d,宿主虹膜睫状体内可观察到大量呈树突状形态的绿色荧光细胞,呈“满天星”样散在分布于小鼠虹膜睫状体中,这些细胞F4/80抗体免疫组织化学荧光染色多为阳性。结论:虹膜睫状体中的APC细胞来源于骨髓,且大部分为F4/80阳性细胞;异基因骨髓移植后宿主虹膜睫状体中的APC细胞全部被供体来源的APC细胞取代。

关键词：异基因骨髓移植虹膜睫状体抗原递呈细胞分布