检索结果-南通市图书馆

Numerical Key Results for Studying the Performance of TCP Traffic under Class-Based Weighted Fair Queuing System

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

通讯和计算机（中英文版） 2016年第4期13卷 195-201页

作者： Mohamed E1 Hedi Boussada jean marie garcia Mounir Frikha Mobile Network and Multimedia SUP 'COM University of Carthage Tunis Tunisia Services and Architectures for Advanced Networks LAAS-CNRS Toulouse France

Density Results in Sobolev Spaces Whose Elements Vanish on a Part of the Boundary

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Annals of Mathematics,Series B 2011年第6期32卷 823-846页

作者： jean-marie Emmanuel BERNARD Laboratoire Analyse et Probabitilités Université d'Evry val d'Essonne23 Boulevard de France91037 EVRYFrance

This paper is devoted to the study of the subspace of Wm＇＂ of functions that vanish on a part γ0 of the boundary. The author gives a crucial estimate of the Poincare constant in balls centered on the boundary of γ0. Then, the convolution-translation method, a variant of the standard mollifier technique, can be used to prove the density of smooth functions that vanish in a neighborhood of γ0, in this subspace. The result is first proved for m = 1, then generalized to the case where m 〉 1, in any dimension, in the framework of Lipschitz-continuous domain. However, as may be expected, it is needed to make additional assumptions on the boundary of γ0, namely that it is locally the graph of some Lipschitz-continuous function.

关键词： Density results Boundary value problems Sobolev spaces

Multiplexing technology for in vitro diagnosis of pathogens： the key contribution of phosphorus dendrimers

在线全文

学校读者我要写书评

暂无评论

Science China Materials 2018年第11期61卷 1454-1461页

作者： jean Pierre Majoral jean marie Francois Richard Fabre Alice Senescau Serge Mignani Anne-marie Caminade Laboratoire de Chimie de Coordination du CNRS 31077 Toulouse Cedex 4France LCC-CNRS Universit6 de Toulouse CNRSToulouseFrance Dendris 31670 LabegeFrance LISBP UMR CNRS 5504 INRA 79231077 Toulouse Cedex 04France Universite Paris Descartes PRES Sorbonne Paris Cite CNRS-UMR 860Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicolgique75006 ParisFrance

After the microbiology based on Pasteur's method and polymerase chain reaction(PCR), the diagnosis company named Dendris has proposed a third-generation of diagnosis enabling the search of a broad range of pathogens with strong sensitivity and specificity. This extraordinary profile was possible thanks to the use of phosphorus dendrimers for which various techniques of deposition on a given support were investigated and described and analyzed in this report.

关键词： phosphorus dendrimers diagnosis DNA arrays multiplexing technology

Effects of indole-3-butyric acid and age of stem cuttings on root morphology,growth,and survival of Cornus sericea

在线全文

学校读者我要写书评

暂无评论

Journal of Forestry Research 2023年第2期34卷 433-440页

作者： Sahari Inoue Chibuzo Ilogu jean-marie Sobze Northern Alberta Institute of Technology Centre for Boreal ResearchPeace RiverAB T8S 1R2Canada Fine Phenotyping Lab Crop Health and ProtectionHarpenden AL52JQUK

Red osier dogwood(Cornus sericea L.),widely distributed throughout North America,is essential for wildlife,thus *** is recommended for reclamation or revegetation of sites disturbed by oil and gas extraction because it tolerates a wide range of soil types and high pH *** germination of this species is extremely difficult with long stratification requirements and poor germination,cuttings facilitate *** this study,to develop techniques to propagate the species from stem cuttings,four concentrations of indole-3-butyric acid(IBA)and two cutting ages previous year’s growth(PYG)and current year’s growth(CYG)were investigated for survival and *** 4 months,survival rate,height growth,and shoot biomass from PYG cuttings were enhanced with IB *** contrast,IB A did not affect these parameters in CYG *** morphology was significantly affected by IB A concentration and cutting ***,at higher concentrations,increased root surface and *** root surface area and length of PYG cuttings were increased,which may facilitate the absorption of essential resources and consequently increase *** results indicate that increasing the concentration of IB A may be an effective way to have better plant survival and growth of previous year’s cuttings in red osier dogwood.

关键词： Vegetative propagation IBA Chronological age Cornus sericea L. Survival rate

Environmental photocatalysis:Perspectives for China

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2010年第9期53卷 1831-1843页

作者： HERRMANN jean marie Institut de Recherches sur la Catalyse et l'Environnement de Lyon UMR 5256 CNRS/Université Lyon1 2 Av.Albert Einstein 69626 Villeurbanne Cedex

Photocatalysis is based on the double aptitude of the photocatalyst(essentially titania) to simultaneously adsorb reactants and absorb efficient *** photocatalysis is able to be efficient in Fine,"Green" and Environmental *** induces mild oxidations in the absence of water by generating active neutral atomic O* *** instance,the oxidation of 4-tert-butyl-toluene is 100% selective in *** water treatment,many toxic inorganic ions are oxidized in their harmless upper oxidized *** elimination of organic pollutants is the main field of water photocatalytic *** of aliphatic and aromatic pollutants are totally mineralized into CO2 and innocuous inorganic *** complex molecules,such as pesticides(herbicides,insecticides,fungicides,etc.) or dyes,are totally *** example of green chemistry is the total degradation of dyes in water,in particular for the azo-dyes,with 100% selective degradation of -N=N-azo-groups into *** is also active in the "bio-world" by killing bacteria(***,streptococcus,etc.) in water without *** pollutants can also be destroyed,especially all the VOC's(volatile organic compounds),providing certain air humidity enabling titania to produce cracking OH* *** chemical engineering reasons,the photocatalyst has to be fixed on a photo-inert *** these conditions,UV-irradiated titania-based photocatalysis could be applied to the elimination of air pollutants,VOC's,solvents,odors,chemicals,*** treatment has to be associated with water and solid waste treatment because of *** is conducted by covering water treatment ponds or lagunas by rafts on which large sheets of Ahlstrom paper are deposited,supporting titania associated with activated ***,virus AH5N2,a model virus close to H5N1,responsible for the avian flu could be totally *** is directly connected wi

关键词： photocatalysis green chemistry environmental chemistry air pollutants water pollutants solar energy China

Synthesis of a novel macrocyclic ligand containing bipyridine units

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2000年第3期18卷 384-387页

作者：何永炳 LEHN jean-marie Department of Chemistry Wuhan University Wuhan Hubei 430072 China

The 6-hydroxymethyl-6'-tetrahydropyranyloxymethyl-2, 2'-bipyridine (2) was synthesized by the reaction of 6,6'-dihydroxymethyl-2, 2'-bipyridine (1) with 3, 4-dihydroxypyran (DHP). ***-6'-iodomethyl-2, 2'-bipyridine (5) was obtained from mesylate and iodizating reaction of compound 2. The coupling of 2 and 5 followed by hydrolysis gave bis(6'-hydroxymethyl-2, 2'-bipyridine-6-methyl) ether (7). The macrocyclic ligand 8 was obtained by treating 7 and 6, 6'-dibromethyl-2, 2'-bipyridine. The synthetic conditions of the intermediate 2 and macocyclic ligand 8 were discussed.

关键词： azacrown ether bipyridine derivative macrocyclic ligand

A formal approach using SysML for capturing functional requirements in avionics domain

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Aeronautics 2019年第12期32卷 2717-2726页

作者： Shaofan ZHU Jian TANG jean-marie GAUTHIER Raphael FAUDOU Beijing Aeronautical Science and Technology Research Institute COMACBeijing 102211China Samares-Engineering Blagnac 31700France

In this work,a Model-Based Systems Engineering approach based on Sys ML is *** approach is used for the capture and the definition of functional requirements in avionics *** motivation of this work is triple:guide the capture of functional requirements,validate these functional requirements through functional simulation,and verify efficiently the consistency of these functional *** proposed approach is decomposed into several steps that are detailed to go from conceptual model of avionics domain to a formal functional model that can be simulated in its operating *** achieve this work,a subset of Sys ML has been used as an intermediate modelling language to ensure progressive transformation that can be understood and agreed by system *** concepts are introduced to ensure theoretical consistency of the *** addition,transformation rules are defined and the mappings between concepts of ARP4754 A civil aircraft guidelines and Sys ML are formalized through *** resulting formalization enables engineers to perform functional simulation of the top-level functional architecture extracted from operational ***,the approach has been tested on an industrial avionics system called the Onboard Maintenance System.

关键词： Avionics systems Conceptual model Functional simulation Model-Based Systems Engineering

Salmonella enterica Flagellin Is Recognized via FLS2 and Activates PAMP-Triggered Immunity in Arabidopsis thaliana

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2014年第4期7卷 657-674页

作者： Ana Victoria garcia Amelie Charrier Adam Schikora jean Bigeard Stephanie Pateyron marie-Ludivine de Tauzia-Moreau Alexandre Evrard Axel Mithofer marie Laure Martin-Magniette Isabelle Virlogeux-Payant Heribert Hirt Unite de Recherche en Genomique Vegetale (URGV) UMR INRA/CNRS/Universite d'Evry Val d'Essonne 91057 Evry France Institute for Plant Pathology and Applied Zoology Research Centre for BioSystems Land Use and Nutrition JL University Giessen Heinrich-Buff-Ring 26-32 35392 Giessen Germany Transcriptomic Platform Unite de Recherche en Genomique Vegetale (URGV) 91057 Evry France Department of Bioorganic Chemistry Max Planck Institute for Chemical Ecology Hans-Knoll-Str. 8 07745 Jena Germany INRA UMR 518 MIA 75005 Paris France AgroParisTech UMR 518 MIA 75005 Paris France INRA UMR 1282 infectiologie et Sante Publique 37380 Nouzilly France

Infections with Salmonella enterica belong to the most prominent causes of food poisoning and infected fruits and vegetables represent important vectors for salmonellosis. Recent evidence indicates that plants recognize S. enterica and raise defense responses. Nonetheless, the molecular mechanisms controlling the interaction of S. enterica with plants are still largely unclear. Here, we show that flagellin from S. enterica represents a prominent pathogenassociated molecular pattern （PAMP） in Arabidopsis thaliana, which induces PAMP-triggered immunity （PTI） via the recognition of the fig22 domain by the receptor kinase FLS2. The Arabidopsis fls2 mutant shows reduced though not abolished PTI activation, indicating that plants rely also on recognition of other S. enterica PAMPs. Interestingly, the S. enterica type III secretion system （T3SS） mutant prgH- induced stronger defense gene expression than wild-type bacteria in Arabidopsis, suggesting that T3SS effectors are involved in defense suppression. Furthermore, we observe that S. enterica strains show variation in the fig22 epitope, which results in proteins with reduced PTI-inducing activity. Altogether, these results show that S. enterica activates PTI in Arabidopsis and suggest that, in order to accomplish plant colonization, S. enterica evolved strategies to avoid or suppress PTI.

关键词： Salmonella enterica Arabidopsis thaliana flagellin FLS2 immunity.

Predictive approach of heterogeneous catalysis

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

National Science Review 2018年第5期5卷 633-635页

作者： jean-marie Basset Jérémie D.A.Pelletier King Abdullah University of Science and Technology

‘Predictive catalysis’ or ‘catalysis by design’ has recently advanced heterogeneous catalysis by using the conceptual tool of surface fragments [1] such as ‘surface organometallic fragments’(SOMF)or ‘surface coordination fragments’(SCF) to achieve and understand a presumed catalytic cycle (see Fig. 1).One or several fragments of the molecule

关键词： SCF CR CO EXAFS