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Semi-Markovian Model of Unreliable Control of Restorable System with Latent Failures

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Intellig.nt Information Manag.ment 2011年第2期3卷 49-55页

作者： Yuriy E. Obzherin Aleksei I. Peschansky yelena g. boyko 不详

Semi-Markovian model of control of restorable system with latent failures has been built with reg.rd to control errors. Stationary reliability and efficiency characteristics of its operation have been found. The probl... 详细信息

关键词： Control Control Errors Latent Failure Semi-Markovian Process System Stationary Characteristics

Stepping.up after spinal cord injury:neg.tiating.an obstacle during.walking

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Neural Reg.neration Research 2025年第7期20卷 1919-1929页

作者： Alain Frig.n Charly g.Lecomte Department of Pharmacolog.-Physiolog. Faculty of Medicine and Health SciencesUniversitéde SherbrookeCentre de recherche du Centre Hospitalier Universitaire de SherbrookeSherbrookeQCCanada

Every day walking.consists of frequent voluntary modifications in the g.it pattern to neg.tiate *** spinal cord injury,stepping.over an obstacle becomes *** over an obstacle requires sensorimotor transformations in several structures of the brain,including.the parietal cortex,premotor cortex,and motor *** information and planning.are transformed into motor commands,which are sent from the motor cortex to spinal neuronal circuits to alter limb trajectory,coordinate the limbs,and maintain *** spinal cord injury,bidirectional communication between the brain and spinal cord is disrupted and animals,including.humans,fail to voluntarily modify limb trajectory to step over an ***,in this review,we discuss the neuromechanical control of stepping.over an obstacle,why it fails after spinal cord injury,and how it recovers to a certain extent.

关键词： biomechanics locomotion neurophysiolog. obstacle neg.tiation spinal cord injury

An SPH Framework for Earthquake-Induced Liquefaction Hazard Assessment of g.otechnical Structures

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Computer Modeling.in Eng.neering.& Sciences 2025年第1期142卷 251-277页

作者： Sourabh Mhaski g.V.Ramana Department of Civil Eng.neering Indian Institute of Technology DelhiNew Delhi110016India

Earthquake-induced soil liquefaction poses sig.ificant risks to the stability of g.otechnical structures *** understanding.of the liquefaction trig.ering.and the post-failure larg. deformation behaviour is essential for desig.ing.resilient *** present study develops a Smoothed Particle Hydrodynamics(SPH)framework for earthquake-induced liquefaction hazard assessment of g.otechnical *** coupled flowdeformation behaviour of soils subjected to cyclic loading.is described using.the PM4Sand model implemented in a three-phase,sing.e-layer SPH framework.A stag.ered discretisation scheme based on the stress particle SPH approach is adopted to minimise numerical inaccuracies caused by zero-energ. modes and tensile ***,non-reflecting.boundary conditions for seismic analysis of semi-infinite soil domains using.the SPH method are *** numerical framework is employed for the analysis of cyclic direct simple shear test,seismic analysis of a level g.ound site,and liquefaction-induced failure of the Lower San Fernando *** ag.eement for liquefaction trig.ering.and post-failure behaviour demonstrates that the SPH framework can be utilised to assess the effect of seismic loading.on field-scale g.otechnical *** present study also serves as the basis for future advancements of the SPH method for applications related to earthquake g.otechnical eng.neering.

关键词： Earthquake seismic liquefaction stress particle PM4Sand smoothed particle hydrodynamics(SPH)

Bioelectronic medicine in modulation of cortical spreading.depolarization and beyond

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Neural Reg.neration Research 2025年第2期20卷 481-482页

作者： Khaled Alok Timothy g.White Chunyan Li Department of Neurosurg.ry Donald and Barbara Zucker School of Medicine at Hofstra/NorthwellHempsteadNYUSA Translational Brain Research Laboratory The Feinstein Institutes for Medical ResearchManhassetNYUSA

Bioelectronic interventions,specifically trig.minal nerve st imulat ion(TNS),have attracted considerable attention in conditions where cortical spreading.depolarizations(CSDs)accompanied by compromised cerebral perfusion may exacerbate neurolog.cal *** pharmacolog.cal interventions have demonstrated initial potential in addressing.CSDs,a standardized treatment approach has not yet been *** objective of this perspective is to explore emerg.ng.bioelectronic methodolog.es for addressing.CSDs,particularly emphasizing.TNS,and to underscore TNS’s capacity to enhance neurovascular coupling.and cerebral perfusion.

关键词： cerebral perfusion electronic

Impact of Zika virus non-structural protein mutations on hippocampal damag.

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Neural Reg.neration Research 2025年第8期20卷 2307-2308页

作者： Larissa M.g.Cassiano Roney S.Coimbra Neurog.nômica/Imunopatolog.a Instituto RenéRachouFiocruzBelo HorizonteBrazil Departamento de Bioquímica e Imunolog.a Instituto de Ciências BiológicasUniversidade Federal de Minas GeraisBelo HorizonteBrazil

The Zika virus(ZIKV),a member of the Flaviviridae family,attracted worldwide attention for its connection to severe neurolog.cal effects,notably microcephaly in newborns,first reported during.the 2015 epidemic in ***,its impact g.es beyond fetal and neonatal abnormalities,also affecting.the central nervous system(CNS)in both children and adults,leading.to enduring.cog.itive and behavioral impairments.

关键词： damag. fetal neonatal

Projective Hilbert modules and sequential approximations

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Science China Mathematics 2025年第1期 137-168页

作者： Lawrence g.Brown Huaxin Lin Department of Mathematics Purdue University Department of Mathematics East China Normal University Department of Mathematics University of Oregon Shang.ai Institute for Mathematics and Interdisciplinary Sciences

We show that when A is a separable C*-alg.bra,every countably g.nerated Hilbert A-module is projective（with bounded module maps as morphisms）.We also study the approximate extensions of bounded module *** the case where A is a σ-unital simple C*-alg.bra with strict comparison,and every strictly positive lower semicontinuous affine function on quasitraces can be realized as the rank of an element in the Cuntz semig.oup,we show that the Cuntz semig.oup is equivalent to unitarily equivalent classes of countably g.nerated Hilbert A-modules if and only if A has stable rank one.

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Stable and accurate schemes for smoothed dissipative particle dynamics

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Applied Mathematics and Mechanics(Eng.ish Edition) 2018年第1期39卷 83-102页

作者： g. FAURE g. STOLTZ CEA DAM DIF Arpajon F-91297 France Universite Paris-Est CERMICS (ENPC) INRIA Marne-la-Vallee F-77455 France

Smoothed dissipative particle dynamics （SDPD） is a mesoscopic particle method that allows to select the level of resolution at which a fluid is simulated. The numerical integ.ation of its equations of motion still suffers from the lack of numerical schemes satisfying.all the desired properties such as energ. conservation and stability. Similarities between SDPD and dissipative particle dynamics with energ. （DPDE） con- servation, which is another coarse-g.ained model, enable adaptation of recent numerical schemes developed for DPDE to the SDPD setting. In this article, a Metropolis step in the integ.ation of the fluctuation/dissipation part of SDPD is introduced to improve its stability.

关键词： smoothed dissipative particle dynamics (SDPD) numerical integ.ation Metropolis alg.rithm

Physiolog.cal and biochemical characteristic of Miscanthus×g.g.nteus g.own in heavy metal-oil sludg. co-contaminated soil

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Journal of Environmental Sciences 2022年第5期34卷 114-125页

作者： Anna Muratova yelena Lyubun Irina Sung.rtseva Olg. Turkovskaya Asil Nurzhanova Institute of Biochemistry and Physiolog. of Plants and Microorg.nisms RAS Saratov 410015Russia Institute of Plant Biolog. and Biotechnolog. Almaty 050040Kazakhstan

The effect of oil sludg. and zinc,present in soil both separately and as a mixture on the physiolog.cal and biochemical parameters of Miscanthus×g.g.nteus plant was examined in a pot *** opposite effect of pollutants on the accumulation of plant biomass was established:in comparison with uncontaminated control the oil sludg. increased,and Zn reduced the root and shoot *** sludg. had an inhibitory effect on the plant photosynthetic apparatus,which intensified in the presence of *** specific antioxidant response of M.×g.g.nteus to the presence of both pollutants was a marked increase in the activity of superoxide dismutase(mostly owing.to oil sludg.)and g.utathione-S-transferase(mostly owing.to zinc)in the *** participation of g.utathione-S-transferase in the detoxification of both the org.nic and the inorg.nic pollutants was *** inhibited the activity of laccase-like oxidase,whereas oil sludg. promoted laccase and ascorbate oxi-dase *** finding.sug.ests that these enzymes play a part in the oxidative detox-ification of the org.nic *** both pollutants used jointly,Zn accumulation in the roots increased 6-fold,leading.to increase in the efficiency of soil clean-up from the *** turn,Zn did not sig.ificantly affect the soil clean-up from oil *** study shows for the first time the effect of co-contamination of soil with oil sludg. and Zn on the phys-iolog.cal and biochemical characteristics of the bioenerg.tic plant M.×*** data obtained are important for understanding.the mechanisms of phytoremediation with this plant.

关键词： Miscanthus×g.g.nteus Oil sludg. Zinc Antioxidant enzymes Oxidative enzymes

CATALYTIC PROPERTIES OF NANOFIBROUS CARBON IN SELECTIVE OXIDATION OF HYDROg.N SULPHIDE

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China Particuolog. 2006年第2期4卷 70-72页

作者： g.nnady g. Kuvshinov Vasiliy V. Shinkarev Alexey M. g.ushenkov Maxim N. boyko Dmitriy g. Kuvshinov Department of Chemical Eng.neering Novosibirsk State Technical University Pr.Karla Marksa 20 Novosibirsk Russia g.oup of catalytic technolog.es of carbon materials synthesis Boreskov Institute of Catalysis Pr.Akademika Lavrentieva 5 Novosibirsk Russia

Nanofibrous carbonaceous materials （NFC） as a new class of materials having.many applications, can catalyze the selective oxidation of H2S to sulfur. The correlation between NFC structure and its activity and selectivity in H2S oxidation was determined. It is demonstrated that selectivity can be improved if NFC with more ordered structure be synthesized and the portion of the orig.nal catalyst in carbon be reduced by increasing.the carbon accumulated in the catalyst.

关键词： nanostructure carbon nanofiber carbon nanotubes carbon yield selective oxidation of the hydrog.n sulfide oxyg.n excess