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计算机教育 2012年第10期 12-17页

作者： AKIF J-ch DAng T-n DUCQ Y gAUTHIER P CnAM Pays of Loire Bordeaux University IMS Laboratory

Scientific research projects aim to produce new knowledge generally in domains of high *** of these projects have goals of improving the performance of *** this case,the issues of the capitalization and transfer of scientific knowledge and its rapid transformation into professional skills are directly ***,there is no method to derive e-learning teaching material from project ***,this paper presents the e-LITE Method and its application to the ISTA3 project to support the process of developing a e-learning *** application has allowed us to highlight the contributions of the method that promotes better knowledge sharing between partners of a research project and the development and transfer of research results to the professional ***,after the presentation of the method,an application to the ISTA3 project will be presented.

关键词： Concurrent engineering methodology Vocational training system e-learning Interoperability professional skill

Binuclear and Hexanuclear Ti(Ⅳ) Complexes Supported by [OOOO]^(4–)-type Ligand for Preparing Disentangled UHMWPE

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chinese Journal of Polymer Science 2019年第5期37卷 471-477页

作者： Vladislav A.Tuskaev Svetlana ch.gagieva Dmitry A.Kurmaev Viktor g.Vasil'ev nikolay A.Kolosov Sergey V.Zubkevich Elena S.Mikhaylik Evgenii K.golubev galina g.nikiforova Pavel A.Zhizhko Olga A.Serenko Boris M.Bulychev Department of chemistry M.V.Lomonosov Moscow State University A.n.nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Enikolopov Institute of Synthetic Polymer Materials Russian Academy of Sciences

Binuclear and hexanuclear titanium complexes stabilized by tetradentate [OOOO]^(4–)-type ligand were active in ethylene polymerization in the presence of Et2 AlCl/Bu2 Mg binary co-catalyst, giving high molecular weight polyethylene. The binuclear complex showed significantly higher catalytic activity and thermal stability in comparison to mononuclear analogue. Ultra high molecular weight polyethylene(UHMWPE) samples were processed by a solid-state uniaxial deformation into high-strength(up to 2.5 gPa) and highmodulus(over 100 gPa) oriented film tapes, which indirectly indicates a low degree of entanglements between the macromolecular chains.

关键词： Binuclear catalysts Titanium Ethylene Ziegler-natta polymerization UHMWPE

Tailoring the spectral response of add/drop single and multiple resonators in silicon-on-insulator

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chinese Optics Letters 2009年第4期7卷 291-295页

作者： B.Timotijevic g.Mashanovich A.Michaeli O.Cohen V.M.n.Passaro J.Crnjanski g.T.Reed Advanced Technology Institute University of SurreyGuildfordGU2 7XHUK (B.Timotijevic is now with CSEM SARue Jaquet-Droz 1CH-2002 NeuchatelSwitzerland) Intel Corporation Kyriat Gat 82109JerusalemIsrael Politecnico di Bari via E.Orabona 470125 BariItaly Faculty of Electrical Engineering University of BelgradeBulevar kralja Aleksandra 73b11120 BelgradeSerbia

channel dropping waveguide filters based on single and technology are of great interest due to their compactness multiple resonators in silicon-on-insulator （SOI） and high wavelength selectivity, which is a desirable feature for photonic modulators, detectors, and other optically integrated components in telecommu- nication systems, in particular for wavelength division multiplexing （WDM） systems. Particular advantage of these filters is that they are capable of producing relatively large free spectral range （FSR） as well as narrow 3-dB bandwidth of the filter resonances. Herein we sibility of designing mono-mode and （nearly） polarization with the FSR in excess of 30 nm. report experimental results and discuss the posindependent SOI ring and racetrack resonators

关键词： Resonators Silicon detectors Wavelength division multiplexing

PRELIMInARY STUDIES On THE CLASSIFICATIOn OF PSEUDOMOnAS AERUgInOSA

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Science in china,Ser.A 1964年第9期 1535-1538页

作者：舒濬

Hitherto no generally accepted procedure for serological classification of Pseudomonasaeruginosa has been *** an attempt to work out a practical procedure for thispurpose,some experiments have been carried out in this... 详细信息

关键词： PRELIMInARY STUDIES On THE CLASSIFICATIOn OF PSEUDOMOnAS AERUgInOSA

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“爱咋咋地”的构式特点

汉语学习 2007年第6期 31-34页

作者：吴长安东北师范大学出版社吉林长春130024

"爱咋咋地"在汉语中表示一种无所谓、随意或不耐烦的态度和情感,与它结构相类似的诸多格式证明,"爱咋咋地"只是其概括形式的一个变体。通过对以"爱咋咋地"为代表的AVV构式的研究可以揭示汉语更易形成构式的两大原因:表达求简和缺少形式... 详细信息

"爱咋咋地"在汉语中表示一种无所谓、随意或不耐烦的态度和情感,与它结构相类似的诸多格式证明,"爱咋咋地"只是其概括形式的一个变体。通过对以"爱咋咋地"为代表的AVV构式的研究可以揭示汉语更易形成构式的两大原因:表达求简和缺少形式限制(形式自由)。汉语的构式研究可以丰富构式语法理论的内容。

关键词：爱咋咋地构式语法理论表达求简

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关于无人售票车与消费者权益保护的思考

消费经济 2005年第2期21卷 79-81页

作者：陈乃哲重庆工学院外国语学院重庆400050

城市公共交通作为一个公益性服务行业,如何更好地为广大市民出行提供安全、便捷、准点、舒适的服务,是城市公共交通事业发展的宗旨,任何公共交通制度改革,都应当服从这个宗旨。但是,城市公共交通从“有人售票车”到“无人售票车”这项... 详细信息

城市公共交通作为一个公益性服务行业,如何更好地为广大市民出行提供安全、便捷、准点、舒适的服务,是城市公共交通事业发展的宗旨,任何公共交通制度改革,都应当服从这个宗旨。但是,城市公共交通从“有人售票车”到“无人售票车”这项公共交通制度改革,在全国范围内广泛实行的同时,不少消费者反映公交无人售票车存在一些问题,其实质是广大消费者的合法权益受到侵犯。

关键词：无人售票车乘客消费者权益中国旅客运输合同合同法民事责任

Olefin Polymerization Behavior of Titanium(IV) Complexes with Fluorinated and non-fluorinated Aliphatic Phenoxyimine Ligands

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chinese Journal of Polymer Science 2024年第1期42卷 52-62,I0007页

作者： Vladislav A.Tuskaev Kasim F.Magomedov Svetlana ch.gagieva Dmitry A.Kurmaev Yulia V.nelyubina Evgenii K.golubev Maria D.Evseeva Viktor g.Vasil'ev galina g.nikiforova Mikhail I.Buzin Vyacheslav S.Bogdanov Boris M.Bulychev Department of chemistry M.V.Lomonosov Moscow State UniversityMoscow 119992Russian Federation A.n.nesmeyanov Institute of Organoelement Compounds Russian Academy of SciencesMoscow119991Russian Federation Enikolopov Institute of Synthetic Polymer Materials Russian Academy of SciencesMoscow 117393Russian Federation

A series of Ti(Ⅳ) dichloride and dialkoxide com plexes with phenoxyimine ligands containing fluorinated and nonfluorinated aliphatic imine fragments have been *** molecular structures of complexes 1 and 4 were established by single-crystal X-ray diffraction *** complexes adopt a distorted octahedral coordination structure around the titanium atom and two oxygen atoms are situated in trans position while two nitrogen atoms and two outgoing ligands(Cl or iPrO) are situated in cis *** of activators(MMAO-12 and combinations Et_nAICl_(3-n)+Bu_(2)Mg) and outgoing ligand(Cl or iPrO) nature on the catalytic activity and properties of the resulting polymers was *** Ti complexes,despite the nature of the outgoing ligands(Cl or iPrO) in the presence of Al/Mg activators,was found to display a high ethylene polymerization activity in the range 1600-3830 kg_(polymer)·mol_(Ti)^(-1)·h^(-1)·atm^(-1) with a viscosity average molecular weight(M_v) value in the range 1.1×10~6-7.1×10~6 Dalton(Da).The resulting UHMWPE can be processed by a solventless method into high-strength and high-modulus oriented *** rheological characteristics of a polymer melt have been *** absence of a cross-over point did not allow to compare the values of the molecular weight distribution of polymers obtained on fluorinated and non-fluorinated pre-catalysts,however,the estimation of the entanglement density is in good agreement with the mechanical characteristics of oriented film *** activation with methylalumoxane,the activity of the com plexes decreased very significantly;however,a polymer with a molecular weight of about 12 million Da was *** the process of ethylene/octene-1 copolymerization,fluorine-containing precatalysts showed a clear advantage over non-fluorinated analogues both in activity and in comonomer content.

关键词： FI catalysts Titanium(IV) (Co)polymerization Al/Mg co-catalyst Ultra-high molecular weight polyethylene

Photolysis studies on HCOOH and HCOO^- in presence of TiO_2 photocatalyst as suspension in aqueous medium

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Journal of natural gas chemistry 2009年第1期18卷 50-54页

作者： g. R. Dey K. n. R. nair K. K. Pushpa Radiation and Photochemistry Division Bhabha Atomic Research Centre Trombay Mumbai 400 085 India

Photolysis studies on formic acid （HCOOH） and formate ion （HCOO-） in presence of TiO2, a photocatalyst, as suspension in water were carried out separately using 350 nm ultraviolet light. The products, such as H2, CO, CO2 and ch4, generated during the experiments were monitored with varying the ambient, light exposure time, and the concentration of HCOOH/HCOO-. The yields of CO in all these systems increased with light exposure time. In aerated systems, CO yields were higher in contrast to the deoxygenated （Ar-purged） systems under identical conditions. It is proposed apparently that the formation of CO is taking place during the chemical reduction of in-situ generated CO2, a photo-mineralized product of HCOOH/HCOO-, but not through the direct photodecomposition or photodehydration （CO＋H2O） of solute molecules. The rates of CO formation during 1.3 M HCOOH photolysis in presence of TiO2 photocatalyst were evaluated to be 0.21 and 0.13 μl/min in aerated and Ar-purged systems, respectively. As compared with HCOOH systems, the CO yields are lower when 0.2 M HCOOna was exposed to light under identical conditions. The CO growth rates were evaluated to be 0.07 and 0.046 μl/min^-1 for aerated and deoxygenated HCOOna systems, respectively; moreover, the trend is quite similar to that of the HCOOH system. Under these conditions, the emission of H2 was also observed, and its yield was significantly higher in Ar-purged system as compared with the CO yields. However, in aerated system, the yields of these products were just opposite. The formation of low yield of methane was observed during photolysis of HCOOH/HCOO ions. In CO2 ambient, the yields of CO and H2 varied drastically with time.

关键词： formic acid formate ion photolysis TiO2

Tribological performance under different environments of Ti-C-n composite films for marine wear-resistant parts

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International Journal of Minerals,Metallurgy and Materials 2023年第1期30卷 144-155页

作者： Hongbo Ju Rui Zhou Jing Luan ch Sateesh Kumar Lihua Yu Junhua Xu Junfeng Yang Bowei Zhang Filipe Fernandes School of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China CEMMPRE—Centre for Mechanical Engineering Materials and Processes Department of Mechanical EngineeringUniversity of CoimbraCoimbra 3030-788Portugal CFAA University of the Basque Country UPV/EHUBilbao 48170Spain ISEP-School of Engineering Polytechnic of PortoPorto 4200-072Portugal Key Laboratory of Materials Physic Institute of Solid State PhysicsHefei Institute of Physical SciencesChinese Academy of SciencesHefei 230031China Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China

The need for reducing the wear in mechanical parts used in the industry makes self-lubricant films one of the sustainable solutions to achieve long-term protection under different environmental *** purpose of this work is to study the influence of C additions on the tribological behavior of a magnetron-sputtered Tin film in air,water,and *** results show that the addition of C into the Tin binary film induced a new amorphous phase,and the films exhibited a dual phase of fcc(face-centered cubic)-Tin and amorphous *** antifriction and wear-resistance properties were enhanced in air and water by adding 19.1at%***,a further increase in the C concentration improved anti-frictional properties but also led to higher wear *** the amorphous phase induced microbatteries and accelerated the corrosion of Tin phases in seawater,the negative abrasion state was detected for all Ti-C-n films due to the adhesion of the tribocorrosion debris on the wear track.

关键词： RF reactive magnetron sputtering Ti-C-n films microstructure tribological properties in air/water/seawater

Enhanced biological wastewater treatment using sodium alginate-immobilized microorganisms in a fluidized bed reactor

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Water Science and Engineering 2022年第2期15卷 125-133页

作者： Yaneth A.Bustos-Terrones Erick R.Bandala gabriela E.Moeller-chávez Victoria Bustos-Terrones Division of graduate Studies and Research CONACYT-TecNM-Technological Institute of CuliacánCuliacánSinaloa 80220Mexico Division of Hydrologic Sciences Desert Research InstituteLas VegasNV 89119-7363USA Academic Direction of Environmental Technology Engineering Polytechnic University of the State of MorelosJiutepecMorelos 62550Mexico

In this study,a microbial consortium isolated from an activated sludge tank of a conventional wastewater treatment plant was immobilized using sodium alginate(SA)as a support material for contaminant biodegradation in wastewater.A volume of 500 mL of activated sludge was immobilized in the SA beads(with a mass concentration of 25 g/L).The resulting SA beads were characterized,introduced into a fluidized bed reactor,fed with 1000 mL of the sample,and characterized again after the treatment *** SA-immobilized microorganisms were tested first for degradation of organic matter(expressed as chemical oxygen demand)and total phosphorous in domestic wastewater,achieving removal efficiencies of 71%and 93%,respectively,after 12 ***,the SA-immobilized microorganisms were tested for degradation of a basic blue 9(BB9)textile dye in a condition that simulated textile *** efficiency of the BB9 degradation was found to be as high as 99.5%after 2 *** to these results,SA-immobilized microorganisms were found to be an environmentally friendly and cost-effective alternative for treatment of municipal and industrial wastewater effluents.

关键词： Domestic wastewater Basic blue 9 Immobilized microorganisms Fluidized bed reactor Sodium alginate