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preparation of textile preform with sewing machines and bending properties of stitched woven glass fibre fabrics

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中国有色金属学会会刊：英文版 2005年第2期15卷 221-224页

作者： ZHAO Nuo-ping H.Rdel c.Herzberg Institute of Textile and clothing Technology Technische Universitt Dresden 01069 Dresden GermanyInstitute of Textile and Clothing Technology Technische Universitt Dresden 01069 Dresden GermanyInstitute of Textile and Clothing Technology Technische Universitt Dresden 01069 Dresden Germany

With the increasing demand of light structure composite in industry, carbon and glass fibres are more and more used, because of their light mass, high strength, high temperature endurance and erosion resistance. This paper focuses on the process of forming a preform. Up to the finished preform, the multilayer reinforced fabrics are subjected to the following procedures: pattern design, cutting and sewing. considering the fabric properties, the 3-dimensional cAD software and sewing machines, which are generally used in the clothing industry, are also suitable for the processing of the reinforced fabrics. This study aims also to the changes of property arising from the sewing process. Bending stiffness and changes of thickness after sewing are studied. These properties will provide input data for cAD pattern design.

关键词：三维加固织物粗加工弯曲硬度 cAD 光结构复合材料玻璃纤维

Movement and Degradation of Metolachlor and Metribuzin in North central Sand Region of Minnesota Under Irrigated potato production

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pedosphere 2000年第4期10卷 289-298页

作者： XUJIANMINg W.c.KOSKINEN 等 InstituteofSoilandWaterResourcesandEnvironmentalScience ZhejiangUniversityhangzhou310029China USDA－ARS，1991UpperBjfordcricleSt.paul MN55108（USA）

Field studies were conducted to determine the dissipation and movement of metribuzin and metolachlor applied at conventional rates to a Verndale sandy loam (Udic Argiboroll) in north-central Minnesota under irrigated potato production in two years. The rapid dissipation of both metribuzin and metolachlor was found during the initial 10 to 15 days in both years) and more than 70% of the applied herbicide dissipated during this period. From 10 to 15 days after application up to the end of growing season in both years, the levels of both herbicides decreased slowly with time. Metolachlor dissipated at a slower rate than metribuzin in surface soil and could carry over to the next cropping season. Metribuzin and metolachlor were detected in only 6 and 1 of 154 soil samples in the first year and in 3 and 4 of 225 soil samples in the second year, taken from 15 to 75cm, respectively. Fifty to 67% of water samples from suction samplers at 135-cm depth contained detectable levels (>0.4μg L-1 ) of herbicides in both years. Under laboratory conditions degradation of both herbicides was much slower than their dissipation in field. Therefore, it appeared that leaching might be an important dissipation pathway for metribuzin and metolachlor under irrigated potato production.

关键词： dissipation metolachlor metribuzin sandy loam

Novel cytocidal Substituted phenyl 4-(2-Oxoimidazolidin-1-yl) Benzenesulfonates and Benzenesulfonamides with Affinity to the colchicine-Binding Site: Is the phenyl 2-Imidazolidinone Moiety a New Haptophore for the Design of New Antimitotics?

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Open Journal of Medicinal chemistry 2015年第1期5卷 9-22页

作者： Sébastien Fortin Lianhu Wei Lakshmi p. Kotra René c.-gaudreault Unité des Biotechnologies et de Bioingénierie Centre de Recherche du CHU de Québec H&ocircpital Saint-Fran&ccedilois d’Assise Université Laval Québec Canada Faculté de pharmacie Université Laval Pavillon Vandry Québec Canada Department of pharmaceutical Sciences University of Toronto Toronto Canada center for Molecular Design and preformulations Toronto General Research Institute University Health Network Toronto Canada Département de Médecine Moléculaire Faculté de Médecine Université Laval Pavillon Vandry Québec Canada

phenyl 4-(2-oxoimidazolidin-1-yl)benzenesulfonates (pIB-SOs) and phenyl 4-(2-oxoimidazolidin- 1-yl)benzenesulfonamides (pIB-SAs) are new, potent combretastatin A-4 (cA-4) analogs designed on the basis of their common phenyl 2-imidazolidone moiety. This phenyl 2-imidazolidone group is a bioisosteric equivalent of the trimethoxyphenyl group also found in colchicine, podophyllotoxin and several other ligands of the colchicine-binding site (c-BS). In this study, we investigate the interactions involved in the binding of pIB-SO and pIB-SA into the c-BS. We describe three distinct pockets (I, II, and III) as key structural elements involved in the interactions between the c-BS and pIB-SOs as well as pIB-SAs. We show that pIB-SOs and pIB-SAs adopt 4 and 3 distinct binding conformations, respectively, within the c-BS. The binding conformations I and IV are common to most pIB-SOs and pIB-SAs exhibiting high affinity for the c-BS and high cytocidal potency. In addition, binding conformation I is the main conformation adopted by pIB-SOs, pIB-SAs, T138067, ABT-751, colchicine and cA-4. We also observe that the sulfonate and the sulfonamide moieties of pIB-SOs and pIB-SAs are bioisosteric equivalents. Interestingly, we further find that a large portion of the phenyl 2-imidazolidinone moiety in these analogs does not bind to pocket I unlike the trimethoxyphenyl moiety found in several antimicrotubule agents such as colchicine, cA-4 and podophyllotoxin, suggesting that the phenyl 2-imidazolidinone group may represent a new haptophoric moiety useful for the design of new c-BS inhibitors mimicking the tropolone and the methoxylated phenolic moieties of colchicine and cA-4, respectively.

关键词： Docking colchicine-Binding Site Ligands Antimicrotubule Agents pIB-SO pIB-SA

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双基地雷达的同步问题

系统工程与电子技术 1989年第2期11卷 33-36页

作者： c.K.Bovey c.p.Horne 李馥仲坚

一、引言双基地雷达的性能取决于发射机和接收机的同步质量。本文提出了对同步的要求和可以实现双基地系统同步的实际方法。文中讲述了一个陆基实验用中重复频率同步系统,并给出了结果。

关键词：双基地雷达同步问题雷达

Inverse methodology as applied to reconstruct local textile features from measured pressure field

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Journal of Materials Science & Technology 2021年第12期71卷 241-247页

作者： S.Bancora c.Binetruy S.Advani comas-cardona Ecole centrale de Nantes Research Institute in Civil Engineering and Mechanics(GeM)UMR CNRS 618344321 Nantes Cedex 3France Department of Mechanical Engineering University of DelawareNewarkDelaware 19716USA

One can compute the final deformation of a known geometry under specific boundary conditions using the constitutive laws of mechanics that describe their stress strain *** such cases the initial geometry is known,and all operators mapping the deformation are defined on the reference ***,there are situations in which the final configuration of a deformation might be known but not the *** inverse formulation allows one to determine the initial geometry of a domain,given its final deformation state,the material behavior law and a set of boundary *** the present work we propose a method to reconstruct the mesoscale geometry of a textile based on its mechanical response during *** do so,stress boundary conditions are acquired by means of a pressuresensitive *** adopting an appropriate material law,the thickness and width information of the yarns are deduced from the pressure field experienced by the compacted *** 3 D scanning techniques such as-cT,the proposed method can be applied on any domain size,allowing long-range variability to be *** the best of the authors’knowledge,there are no previous works that use a pressure-sensitive film on a large domain to capture the input data for a shape *** example application serves as a demonstration of a methodology which could be applied to other classes of materials.

关键词： Textiles pressure sensors Inverse method Digital twin geometry reconstruction Hyperelasticity

Upper Darriwilian(Middle Ordovician) Radiolarians and Ostracods from the Hulo Formation, Zhejiang provicnce, South china

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Journal of Earth Science 2018年第4期29卷 886-899页

作者： Yuhao Yi Aihua Yuan Jonathan c Aitchison Qinglai Feng School of Earth Sciences China University of Geosciences State Key Laboratory of geological processes and Mineral Resources China University of Geosciences School of Earth and Environmental Sciences University of Queensland

considerable research has been done on the Ordovician marine fossils from South china, including macrofossils such as brachiopods, graptolites, bivalves, trilobites, some microfossils like conodonts and acritarches. However, radiolarians and ostracods that are also important consti- tuents of the Ordovician marine ecosystem have been paid little attention in this region. In this study, ten radiolarians species belonging to four genera and sixteen ostracods species grouped into nine genera were found from the Hulo Formation at the Hengdu Section of the Jiangshan District, west- ern Zhejiang province, South china. The fossil-bearing strata belong to the graptolite pterograptus elegans Zone which indicates the Late Darriwilian Age. This radiolarian fauna is the first record of the Middle Ordovician radiolarian body fossils and also the earliest Ordovician radiolarian fauna reported from South china. The occurrence of Beothuka in this fauna extends the stratigraphic range of the genus to the Upper Darriwilian. Reviews of previous literatures suggest that the diversity of Beothuka was greater during the Early Ordovician, and then declined gradually from the Early Ordovician to the Middle Ordovician before its extinction. The co-occurring ostracod fauna belongs to a shallow-water ecotype. This is contrary to the host lithofacies of the ostracod fauna which represent a deep-water environment. Therefore, these ostacods may have been transported from the shallow-water environment, most likely from the Yangtze carbonate platform. If this conjecture is the truth, then the Jiangshan District was near the shallow-water carbonate platform and received its sediments during the Darriwilian. It is still essential to do more work in the future to better understand the ecology of the Ordovician ostracod fanuas and their role in the sedimentary system of South china.

关键词： radiolarians ostracods ecotype Ordovician Hengdu Section South china.

Atomistic Simulation of phase Transformation and Fracture in Ordered Intermetallics

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Journal of Materials Science & Technology 1993年第5期9卷 355-359页

作者： p.c.clapp c.S.Becquart D.Kim Y.Shao J.A.Rifkin center for Materials Simulation,Institute of Materials Science,University of connecticut,Storrs,cT 06269-3136,USA

A review of computer simulations carried out at our center for Materials Simulation applied to stud- ying the different atomistic processes of fracture and displacive (martensitic) transformations is pres- *** these processes can happen extremely rapidly and involve only a small number of atoms initially,they are ideally suited for molecular dynamics type simulations which can currently only span times of the order of one nanosecond and involve at most a million atoms.A method is also presented for simulating much larger samples for much longer times through the use of the Monte-carlo technique combined with a ginzburg-Landau free energy functional,where the rele- vant material parameters are determined from molecular dynamics runs on the same alloy system.A summary of studies on fracture simulations in the ordered intermetallics NiAI and RuAl is given,as well as a discussion of the observation and analysis of the heterogeneous nucleation of the martensitic transformation in NiAI which shows localized soft mode *** is concluded that computer simulations,whether of the atomistic molecular dynamics type or of the larger scale Monte-carlo variety,are rapidly becoming of greater and greater use in understanding the properties of solids under a wide rancle of temperature and stress conditions.

关键词： computer simulation phase transformation fracture ordered intermetallics

Evaluation of Keratin Fibre Damage under Different Straightening conditions

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Evaluation of Keratin Fibre Damage under Different Straighte...

MATRIX-AgENT FRAMEWORK: A VIRTUAL pLATFORM FOR MULTI-AgENTS

绿色纺织，健康生活——第三届纺织生物工程及信息学国际会议

作者： c.W.M.Yuen p.Y.Lau Institute of Textiles and clothing The Hong Kong Polytechnic University

In this paper, hair as a keratin fibre was subjected to different straightening conditions. Various hair damage conditions in straightening process were simulated in order to investigate the effects of hair damages on their surface structures, colour differences, physical and chemical properties. It was indicated that different treatment conditions produced different degrees of hair damages because of the reduction of disulphide bonds on hair. After the straightening process, hair surface reflection increased but the corresponding strength decreased. However, when heat was applied onto hair pressing is too high, yellowing effect was resulted. Furthermore, the surface reflection was greatly affected by giving large colour difference when compared with the untreated hair.

关键词： hair keratin fibre structural damage straightening temperature colour difference

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Journal of Systems Science and Systems Engineering 2006年第4期15卷 436-456页

作者： clement H.c. LEUNg gitesh K. RAIKUNDALIA School of computer Science and Mathematics Victoria University PO Box 14428 Melbourne City MC 8001 Australia

Multi-agent technology has been applied extensively to many areas, including Decision Support Systems （DSS）. However, the applications of multi-agent technology in DSS are still very preliminary. Most of the current agent frameworks, such as middle-agent-based or agent-facilitator-based frameworks, are basically agent-to-agent model. These agent-based frameworks often neglect the living environment for agents and they suffer from：（i） inability to adapt to the environment, （ii） inability to self-upgrade, and （iii） inefficiency in information acquisition. Here, we introduce a recently proposed multi-agent framework, namely Agent-based Open connectivity for Decision Support Systems （AOcD）. In this new framework, the communication and cooperation between agents are through a key component, the Matrix, which provides a virtual platform for agents. We use a unified Matrices framework to solve the bottleneck problem in the AOcD framework. Our experimental results based on different agent network topologies indicate that the hybrid topology presents superior performance compared with the centralised and decentralised topologies.

关键词： Multi-agent agent topology analysis DSS virtual agent society AOcD