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Novel insight into dry sliding behavior of Cu-Pb-sn in-situ composite with secondary phase in different morphology

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Journal of Materials science & Technology 2020年第5期40卷 158-167页

作者： B.W.Dong s.h.wang Z.Z.Dong J.C.Jie T.M.wang T.J.Li school of Material science and Engineering Dalian University of TechnologyDalian 116024China

The Cu-24 Pb-x sn(wt%)(x=0,2,4,6)alloys with Pb-rich second-phase particles(sPPs)in different shapes show obviously differently mechanical and self-lubricating *** influence of the sPPs’shape difference on the alloys’mechanical and self-lubricating properties was ***-24 Pb alloy with continuously netty sPPs shows much more intensive stick-slip phenomenon during dry sliding than the other three alloys with independently rodlike *** is mainly due to insufficient lubrication resulted by the netty sPPs’splitting *** the sPPs transforming from netty to rodlike shape under the addition of sn,the stick-slip phenomenon was notably weakened,which was proven to be related to the higher self-lubricating property of alloys with rodlike ***,the simultaneous increase of ductility and tensile strength was observed in the Cu-24 Pb-x sn alloys with increasing sn content,which is because the netty sPPs’splitting behavior will be weakened with them replaced by the rodlike sPPs.

关键词： second-phase particles Netty shape Rodlike shape stick-slip Mechanical property self-lubricating property

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The symplectic schemes On Regular Lattice

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The Symplectic Schemes On Regular Lattice

EXPREssION AND IDENTIFICATION OF ThE Ts87 GENE OF TRIChINELLA sPIRALIs IN PIChIA PAsTORIs

CCAsT“基因算法及其在物理，生命科学和工程中的应用”研讨会

作者： h.Y.Guo s.h.wang G.M.Wei K.Wu CCsAT-WL P.O.Box 8730 Beijing100080 China. Inst.of Applied Physics and Computational Mathematics P.O.Box 8009 Beijing 100088 China Inst.of Applied Physics and Computational Mathematics P.O.Box 8009 Beijing 100088 China Dappart.of Phys. Capital Normal University Beijing100037 China CCsAT-WL P.O.Box 8730 Beijing 100080 China.Inst.of Theoretical Phys. Acad sinica P.O.Box 2735 Beijng 100080 China~2.Depart.of Math. Ibaraki University Mito 310-8512 Japan~3.

1 IntroductionIn this talk,we briefly introduce our recent work[1] on a simple phase spacediscrete version of the symplectic algorithm[2],[3].It is well known that thesymplectic algorithm is very powerful and successful for hamiltonian systemsin comparison with other various non-symplectic computational schemes due tothe symplectic schemes are structure preserving in certain geometrical *** is well known however in the symplectic algorithm the symplectic struc-tures of phase-spaces of the problems being preserved are always taken as theoriginal continuous *** other wards,the ordinary symplectic schemescomplitely ignore the tiny-discretization properties of the phase spaces due to

关键词： The symplectic schemes On Regular Lattice hamiltonian

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EXPRESSION AND IDENTIFICATION OF THE TS87 GENE OF TRICHINELL...

Numerical manifold modeling of sliding instability of rock slope

第十九届国际动物学大会

作者： s.h.wang X.P.Zhu Y.Gu Y.P.Yang J.Yang Department of Parasitology School of Basic Medicine Capital University of Medicine Science Beijing 100054 China Department of Parasitology School of Basic Medicine Capital University of Medicine Science Beijing 100054 China Department of Parasitology School of Basic Medicine Capital University of Medicine Science Beijing 100054 China Department of Parasitology School of Basic Medicine Capital University of Medicine Science Beijing 100054 China Department of Parasitology School of Basic Medicine Capital University of Medicine Science Beijing 100054 China

＜正＞We chose Pichia pastoris expression system to express the Ts87 gene of Trichinella spiralis in order to obtain native and active protein. The Ts87 was amplified by PCR and recombined with the P. pastoris expression vector PPICZαA according to the manufacture’s instructions for a Pichia expression Kit ( In-

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Numerical manifold modeling of sliding instability of rock s...

The 2nd IsRM International Young scholars’symposium on Rock Mechanics

作者： XJ.Mu,s.h.wang,M.D.Guo & Z.P.Feng state Key Laboratory for Geomechanics & Deep Underground Engineering,China University of Mining and Technology,Xuzhou,China s.h.wang school of Resource and Civil Engineering,Northeastern University,shenyang,China

The commonly used numerical method in geotechnical engineering like finite element method, distinct element method and discontinuous deformation analysis have different *** method has its own advantages and disadvantages with proper scope of *** Manifold Method(NMM) was originally developed by *** on the bases of Block Theory and Discontinuous Deformation Analysis (DDA) in the early ***'s a more general numerical method which can solve the problem of continuity and discontinuity,dynamic and static,large displacement and small *** paper introduces NMM briefly and model the spatial entity including three-dimensional finite random or fixed discontinuities using GeosMA-3D which is an independent R&D *** addition,we simulate the sliding instability of a certain section by NMM.

关键词： Numerical manifold modeling of sliding instability of rock slope

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分散系统的最优局部输出反馈控制(英文)

控制理论与应用 1985年第2期 72-81页

作者：李光泉 s.h.wang C.s.Wu 天津大学美国马里兰大学

本文对所导出的离散型分散系统最优输出反馈控制进行了讨论,提出和建议一种收敛的计算法并用数值例子加以说明。

关键词： BFC 输出反馈

用时变控制器消除分散控制系统的固定模(英文)

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控制理论与应用 1985年第3期 48-57页

作者：李光泉 s.h.wang C.s.Wu 天津大学美国马里兰大学

众所周知,在分散控制系统的设计中,不稳定的固定模的存在使得我们不能用分散化的、定常的局部控制器去稳定系统。本文应用一种采样和具有指数衰减保持的时变控制器来消除系统的固定模,由此而得到的定常可稳定的系统可以用局部输出反馈... 详细信息

众所周知,在分散控制系统的设计中,不稳定的固定模的存在使得我们不能用分散化的、定常的局部控制器去稳定系统。本文应用一种采样和具有指数衰减保持的时变控制器来消除系统的固定模,由此而得到的定常可稳定的系统可以用局部输出反馈来稳定并进而可以实现最优控制。

关键词：固定模分散控制系统时变控制器

Interplay between creeping fat and gut microbiota: A brand-new perspective on fecal microbiota transplantation in Crohn's disease

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World Journal of Gastroenterology 2025年第2期31卷 138-143页

作者： Ying wang Jie Liu Department of Life sciences and Medicine South District of Endoscopic CenterThe First Affiliated Hospital of University of Science and Technology of ChinaUniversity of Science and Technology of ChinaHefei 230001Anhui ProvinceChina Department of Gastroenterology The First Affiliated Hospital of University of Science and Technology of ChinaHefei 230001Anhui ProvinceChina

Inflammatory bowel disease,particularly Crohn's disease(CD),has been linked to modifications in mesenteric adipose tissue(MAT)and the phenomenon known as"creeping fat"(CrF).The presence of CrF is believed to serve as a predictor for early clinical recurrence following surgical intervention in patients with ***,the incorporation of the mesentery during ileocolic resection for CD has been correlated with a decrease in surgical recurrence,indicating the significant role of MAT in the pathogenesis of *** numerous studies have indicated that dysbiosis of the gut microbiota is a critical factor in the development of CD,the functional implications of translocated microbiota within the MAT of CD patients remain *** manuscript commentary discusses a recent basic research conducted by Wu et *** their study,intestinal bacteria from individuals were transplanted into CD model mice,revealing that fecal microbiota trans-plantation(FMT)from healthy donors alleviated CD symptoms,whereas FMT from CD patients exacerbated these ***,FMT was found to affect intestinal permeability,barrier function,and the levels of proinflammatory factors and ***,these findings suggest that targeting MAT and CrF may hold therapeutic potential for patients with ***,the study did not evaluate the composition of the intestinal microbiota of the donors or the subsequent alterations in the gut ***,the gut microbiota plays a crucial role in the histopathology of CD,and thus,targeting MAT and CrF may represent a promising avenue for treatment in this patient population.

关键词： Crohn's disease Mesenteric adipose tissue Creeping fat Fecal microbiota transplantation Gut microbiota

P2Y1 receptor in Alzheimer’s disease

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Neural Regeneration Research 2025年第2期20卷 440-453页

作者： shan Luo Yifei wang Tatsuhiro hisatsune Department of Integrated Biosciences The University of TokyoKashiwaJapan

Alzheimer’s disease is the most frequent form of dementia characterized by the deposition of amyloid-beta plaques and neurofibrillary tangles consisting of hyperphosphorylated *** amyloid-beta plaques has been a primary direction for developing Alzheimer’s disease treatments in the last ***,existing drugs targeting amyloid-beta plaques have not fully yielded the expected results in the clinic,necessitating the exploration of alternative therapeutic *** evidence unravels that astrocyte morphology and function alter in the brain of Alzheimer’s disease patients,with dysregulated astrocytic purinergic receptors,particularly the P2Y1 receptor,all of which constitute the pathophysiology of Alzheimer’s *** receptors are not only crucial for maintaining normal astrocyte function but are also highly implicated in neuroinflammation in Alzheimer’s *** review delves into recent insights into the association between P2Y1 receptor and Alzheimer’s disease to underscore the potential neuroprotective role of P2Y1 receptor in Alzheimer’s disease by mitigating neuroinflammation,thus offering promising avenues for developing drugs for Alzheimer’s disease and potentially contributing to the development of more effective treatments.

关键词： astrocytes neuroinflammation P2Y1 receptor purinergic receptor

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Constraints on holographic QCD phase transitions from PTA observations

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science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 71-78页

作者： song he Li Li sai wang shao-Jiang wang Center for Theoretical Physics and College of Physics Jilin University school of Physical science and Technology Ningbo University Max Planck Institute for Gravitational Physics (Albert Einstein Institute) CAs Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences school of Fundamental Physics and Mathematical sciences Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of Sciences (UCAS) school of Physical sciences University of Chinese Academy of Sciences (UCAS) Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences

The underlying physics of QCD phase transition in the early Universe remains largely unknown due to its strong-coupling nature during the quark-gluon plasma/hadron gas transition, yet a holographic model has been proposed to quantitatively fit the lattice QCD data while with its duration of the first-order phase transition(FoPT) left undetermined. At specific baryon chemical potential, the first-order QCD phase transition agrees with the observational constraint of baryon asymmetry. It, therefore, provides a scenario for phase transition gravitational waves(GWs) within the standard model of particle physics. If these background GWs could contribute dominantly to the recently claimed common-spectrum red noise from pulsar timing array(PTA) observations, the duration of this FoPT can be well constrained, and the associated primordial black holes are still allowed by current observations.

关键词： pulsar timing array QCD phase transition gravitational waves primordial black holes