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The Role of Host-derived Dentinal Matrix Metalloproteinases in Reducing Dentin Bonding of Resin Adhesives

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International Journal of Oral Science 2009年第4期1卷 163-176页

作者： Matthias kern Department of Prosthodontics Propaedeutics and Dental Materials Christians-Albrechts UniversityKiel Germany

Dentin matrix metalloproteinases （MMPs） are a family of host-derived proteolytic enzymes trapped within mineralized dentin matrix, which have the ability to hydrolyze the organic matrix of demineralized dentin. After bonding with resins to dentin there are usually some exposed collagen fibrils at the bottom of the hybrid layer owing to imperfect resin impregnation of the demineralized dentin matrix. Exposed collagen fibrils might be affected by MMPs inducing hydrolytic degradation, which might result in reduced bond strength.Most MMPs are synthesized and released from odontoblasts in the form of proenzymes, requiring activation to degrade extracellular matrix components. Unfortunately, they can be activated by modem self-etch and etch-and-rinse adhe- sives. The aim of this review is to summarize the current knowledge of the role of dentinal host-derived MMPs in dentin matrix degradation. We also discuss various available MMP inhibitors, especially chlorhexidine, and suggest that they could provide a potential pathway for inhibiting collagen degradation in bonding interfaces thereby increasing dentin bonding durability.

关键词： bonding matrix metalloproteinases(MMPs) MMP inhibitors chlorhexidine

NOTES ON REAL INTERPOLATION OF OPERATOR L_(p)-SPACES

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Acta Mathematica Scientia 2021年第6期41卷 2173-2182页

作者： marius JUNGE Quanhua XU Department of Mathematics University of IllinoisUrbanaIL61801USA Institute for Advanced Study in Mathematics Harbin Institute of TechnologyHarbin150001China Laboratoire de Mathématiques Universitéde Bourgogne Franche-Comté25030Besançon CedexFrance

Let M be a semifinite von Neumann *** equip the associated noncommutative Lp-spaces with their natural operator space structure introduced by Pisier via complex *** the other hand,for L_(p),p(M)=(L_(∞)(M),L_(1)(M)_(1/p,p)be equipped with the operator space structure via real interpolation as defined by the second named author(***.139(1996),500–539).We show that Lp,p(M)=Lp(M)completely isomorphically if and only if M is finite *** solves in the negative the three problems left open in the quoted work of the second *** also show that for 1

关键词： operator spaces L_(p)-spaces real interpolation column Hilbertian spaces

Global hydrostatic approximation of the hyperbolic Navier-Stokes system with small Gevrey class 2 data In memory of Professor Geneviève Raugel

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Science China Mathematics 2022年第6期65卷 1109-1146页

作者： marius Paicu Ping Zhang Institut de Mathematiques de Bordeaux Universite BordeauxTalence 33405France Academy of Mathematics and Systems Science and Hua Loo-Keng Key Laboratory of Mathematics Chinese Academy of SciencesBeijing 100190China School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100049China

We investigate the hydrostatic approximation of a hyperbolic version of Navier-Stokes equations,which is obtained by using the Cattaneo type law instead of the Fourier law,evolving in a thin strip R×(0,ε).The formal limit of these equations is a hyperbolic Prandtl type *** first prove the global existence of solutions to these equations under a uniform smallness assumption on the data in the Gevrey class *** we justify the limit globally-in-time from the anisotropic hyperbolic Navier-Stokes system to the hyperbolic Prandtl system with such Gevrey class 2 *** with Paicu et al.(2020)for the hydrostatic approximation of the 2-D classical Navier-Stokes system with analytic data,here the initial data belongs to the Gevrey class 2,which is very sophisticated even for the well-posedness of the classical Prandtl system(see Dietert and GerardVaret(2019)and Wang et al.(2021));furthermore,the estimate of the pressure term in the hyperbolic Prandtl system gives rise to additional difficulties.

关键词： incompressible hyperbolic Navier-Stokes equations hydrostatic approximation hyperbolic Prandtl system

Global strong solutions to 3-D Navier-Stokes system with strong dissipation in one direction Dedicated to Professor Jean-Yves Chemin on the Occasion of His 60th Birthday

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Science China Mathematics 2019年第6期62卷 1175-1204页

作者： marius Paicu Ping Zhang Institut de Mathématiques de Bordeaux Université Bordeaux 1 Academy of Mathematics and Systems Science and Hua Loo-Keng Key Laboratory of Mathematics Chinese Academy of Sciences School of Mathematical Sciences University of Chinese Academy of Sciences

We consider three-dimensional incompressible Navier-Stokes equations(NS) with different viscous coefficients in the vertical and horizontal variables. In particular, when one of these viscous coefficients is large enough compared with the initial data, we prove the global well-posedness of this system. In fact, we obtain the existence of a global strong solution to(NS) when the initial data verifies an anisotropic smallness condition which takes into account the different roles of the horizontal and vertical viscosity.

关键词： anisotropic Navier-Stokes equations Littlewood-Paley theory well-posedness

Effects of Staged Injection on Supersonic Mixing and Combustion

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Chinese Journal of Aeronautics 2011年第5期24卷 584-589页

作者： HOU Lingyun Bernhard WEIGAND marius BANICA School of Aerospace Tsinghua University Beijing 100084 China lnstitut fiir Thermodynamik der Lufi- and Raumfahrt （ITLR） Universitaet Stuttgart Stuttgart 70569 Germany TEB42 Liquid Propulsion Systems EADS Astrium Space Transportation Les MureauxCedex 78133 France

The three-dimensional （3D） reacting flow in a staged supersonic combustor is examined numerically. In order to obtain the optimum stream-wise vortices, a swept ramp injector is chosen as the second-stage wall injection combined with the first-stage central strut injection. The performance of the two-staged injection is compared with that of a one-staged injection, while the strut is kept installed in both cases. The two-staged injections can make full use of the residual oxygen near the wall and release more heat. The second-stage injection further downstream avoids the strong shock waves in the isolator and results in a rising wall pressure and good burning effects after the wall injection. Therefore, it allows more fuel to be injected into the supersonic combustor without causing thermal choking. Parallel injection from the second-stage swept ramp shows low total pressure loss and the best burning efficiency, compared with the other injection angles.

关键词： supersonic mixing stream-wise vortices staged injection swept ramp combustion

A Characterization of PSL(2,q),q=5,7

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Algebra Colloquium 2019年第4期26卷 561-564页

作者： marius Tarnauceanu Jiping Zhang Faculty of Mathematics UA1.I.Cuza”UniversityIasiRomania 不详

In this short note we prove that the finite non-abelian simple groups PSL(2,q),where g=5,7,are determincd by their posets of classes of isomorphic *** interesting open problems are also formulated.

关键词： simple groups solvable groups posets of isomorphic subgroups

The role of L-arginine metabolism in neurocritical care patients

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Neural Regeneration Research 2022年第7期17卷 1446-1453页

作者： marius Marc-Daniel Mader Patrick Czorlich Department of Neurosurgery University Medical Center Hamburg-EppendorfHamburgGermany Institute for Stem Cell Biology and Regenerative Medicine Stanford University School of MedicineStanfordCAUSA

Nitric oxide is an important mediator of vascular autoregulation and is involved in pathophysiological changes after acute neurological *** oxide is generated by nitric oxide synthases from the amino acid L-arginine.L-arginine can also serve as a substrate for arginases or lead to the generation of dimethylarginines,asymmetric dimethylarginine,and symmetric dimethylarginine,by *** dimethylarginine is an endogenous inhibitor of nitric oxide synthase and can lead to endothelial *** review discusses the role of L-arginine metabolism in patients suffering from acute and critical neurological disorders often requiring neuro-intensive care *** addressed in this review include intracerebral hemorrhage,aneurysmal subarachnoid hemorrhage,and traumatic brain *** therapeutic advances in the field are described including current randomized controlled trials for traumatic brain injuries and hemorrhagic stroke.

关键词： arginine brain injuries,traumatic cerebral hemorrhage dimethylarginine nitric oxide stroke subarachnoid hemorrhage

Ensuring federated learning reliability for infrastructure-enhanced autonomous driving

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Journal of Intelligent and Connected Vehicles 2023年第3期6卷 125-135页

作者： Benjamin Acar marius Sterling Technical University of Berlin Berlin10623Germany

The application of machine learning techniques,particularly in the context of autonomous driving solutions,has grown exponentially in recent *** such,the collection of high-quality datasets has become a prerequisite for training new ***,concerns about privacy and data usage have led to a growing demand for decentralized methods that can be learned without the need for pre-collected *** learning(FL)offers a potential solution to this problem by enabling individual clients to contribute to the learning process by sending model updates rather than training *** Federated Learning has proven successful in many cases,new challenges have emerged,especially in terms of network availability during *** a global instance is responsible for collecting updates from local clients,there is a risk of network downtime if the global server *** this study,we propose a novel and crucial concept that addresses this issue by adding redundancy to our *** than deploying a single global model,we deploy a multitude of global models and utilize consensus algorithms to synchronize and keep these replicas *** utilizing these replicas,even if the global instance fails,the network remains *** a result,our solution enables the development of reliable Federated Learning systems,particularly in system architectures suitable for infrastructure-enhanced autonomous ***,our findings enable the more effective realization of use cases in the context of cooperative,connected,and automated mobility.

关键词： federated learning(FL) Kubernetes autonomous driving

Parrondo's paradox for chaos control and anticontrol of fractional-order systems

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Chinese Physics B 2016年第1期25卷 507-513页

作者： marius-F Danca Wallace K S Tang Department of Mathematics and Computer Science Avram Iancu University Romanian Institute for Science and Technology Department of Electronic Engineering City University of Hong Kong

We present the generalized forms of Parrondo＇s paradox existing in fractional-order nonlinear systems. The gener- alization is implemented by applying a parameter switching （PS） algorithm to the corresponding initial value problems associated with the fractional-order nonlinear systems. The PS algorithm switches a system parameter within a specific set of N 〉 2 values when solving the system with some numerical integration method. It is proven that any attractor of the concerned system can be approximated numerically. By replacing the words ＂winning＂ and ＂loosing＂ in the classical Parrondo＇s paradox with ＂order＂ and ＂chaos＂, respectively, the PS algorithm leads to the generalized Parrondo＇s paradox： chaos1 ＋ chaos2 ＋..- ＋ chaosN = order and order1 ＋ order2 ＋.-. ＋ orderN = chaos. Finally, the concept is well demon- strated with the results based on the fractional-order Chen system.

关键词： Parrondo's paradox chaos control parameter switching algorithm fractional-order Chen system