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Wrinkle-crease interaction behavior simulation of a rectangular membrane under shearing 认领 引用 被引量：4
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作者 C.-G.Wang H.-F.Tan X.-D.He 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2011年第4期550-558,共9页
Wrinkling analysis of a rectangular membrane with a single crease under shearing is performed to understand the wrinkle-crease interaction behaviors.The crease is considered by introducing the residual stresses from c... Wrinkling analysis of a rectangular membrane with a single crease under shearing is performed to understand the wrinkle-crease interaction behaviors.The crease is considered by introducing the residual stresses from creasing and the effective modulus into the baseline configuration with assumed circular cross-sectional crease geometry.The wrinkling analysis of the creased membrane is then performed by using the direct perturb-force(DP)simulation technique which is based on our modified displacement components(MDC)method.Results reveal that the crease may influence the stress transfer path in the membrane and further change the wrinkling direction.The crease appears to improve the bending stiffness of the membrane which has an effective resistance on the wrinkling evolution.The effects of the crease orientation on wrinkle-crease interaction are studied toward the end of this paper.The results show that the wrinkling amplitude,wavelength,and direction increase as the crease orientation increases,and the wrinkling number decreases with the increasing crease orientation.These results will be of great benefit to the analysis and the control of the wrinkles in the membrane structures. 展开更多
关键词 Membrane structure Wrinkle-crease interac-tion Membrane wrinkling Creased membrane
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A New Catalyst in the Crease Recovery Finishing of Silk Fabrics with Epoxide 认领 引用 被引量：1
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作者 王建明 沈淦清 《Journal of Donghua University(English Edition)》 EI CAS 2004年第6期27-30,共4页
The paper here intends to discuss silk crease recovery finishing behavior with ED GE (ethylene diglycidal ether) in the presence of a new catalyst WSH. The results show that ED GE reacts with silk fibroin and forms cr... The paper here intends to discuss silk crease recovery finishing behavior with ED GE (ethylene diglycidal ether) in the presence of a new catalyst WSH. The results show that ED GE reacts with silk fibroin and forms cross linkages through ether bond. The formation of cross linking was examined by FITR spectroscopy, soluble time in acid solution and changes of amino acids. Handle of treated silk with catalyst WSH is better than that of silk treated with the traditional catalysts such as thiosulfates and thiocyanates. Finishing technique, physical properties of the finished silk fabrics and evaluation of cross linkages are discussed. 展开更多
关键词 Epoxide, Catalyst, Silk, Crease Recovery Finishing
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Wrinkling analysis of creased rectangular membrane 认领 引用
3
作者 王长国 兰澜 谭惠丰 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2012年第3期88-94,共7页
In this paper,the wrinkle-crease interaction behavior of a rectangular membrane under edge tension is simulated.The creased membrane is modeled by using a Modified Two-Parameter model.In this model,two crease paramete... In this paper,the wrinkle-crease interaction behavior of a rectangular membrane under edge tension is simulated.The creased membrane is modeled by using a Modified Two-Parameter model.In this model,two crease parameters,i.e.the effective modulus of creased membrane and the residual stress from creasing,are computed by using MacNeal's method that was firstly applied directly in a flat membrane with the local crease.We have proposed a method to solve the wrinkling computing issue of the creased membrane by using a Direct Perturb-Force technique in our previous work.Based on our method,the effects of crease location on the wrinkle-crease interaction behavior can be evaluated accurately.These results will be of great benefit to the analysis and the control of the wrinkles in the membrane structures. 展开更多
关键词 membrane wrinkling creasing
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STUDY ON THE CREASE RESISTANCE TREATMENT OF THE NATURAL SILK WITH RESIN FINISHING (The first part) 认领 引用
4
作者 北村爱夫 陈开利 《苏州大学学报（工科版）》 1990年第S1期68-75,共8页
In this paper we systematically inspect the crease resistance effect of several typicalkinds of resin,and try to probe into amore resonable method of the natural silks resinfinish.By inspecting the variation of the st... In this paper we systematically inspect the crease resistance effect of several typicalkinds of resin,and try to probe into amore resonable method of the natural silks resinfinish.By inspecting the variation of the static visco-elastic constant and the degree ofcrosslinking caused by the different dinds of resin,the difference of degree of drafting andthe diffetence of precuring and curing,we may expound the crease resistance effect of theresin finish in mechanism. 展开更多
关键词 silk resin flnishing crosslinking static visco-elastic constant crease resistance
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STUDY ON THE CREASE RESISTANCE TREATMENT OF THE NATURAL SILK WITH RESIN FINISHING(Ⅱ) 认领 引用
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作者 北村爱夫 陈开利 《苏州大学学报（工科版）》 1991年第S1期37-42,共6页
This paper studies on the relationship between the draft and the crease resisfance in the heattreatment of thenatural silk with resin finishing.
关键词 natural silk resin finishing crease resistance
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Origami principle in space deployable membrane structures:Mechanism,application and prospects 认领 引用
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作者 Junhao WU Kangjia FU +5 位作者 Sunquan YU Xuesong WU Qi ZHANG Zongyu WU Yong ZHAO Xiang ZHANG 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2026年第5期298-329,共32页
The accelerated evolution of space technology has elevated the importance of high power and lightweight attributes in satellite design.In response to the conflict between the demand for large-scale,high-power payloads... The accelerated evolution of space technology has elevated the importance of high power and lightweight attributes in satellite design.In response to the conflict between the demand for large-scale,high-power payloads and the need for lightweight,compact platforms,flexible space origami membrane structures have emerged as a potential solution.These structures possess the ability to overcome the limitations of traditional deployable mechanisms.Their geometric reconfiguration capabilities,characterized by high folding ratios,effectively satisfy the high-power performance demands.Thus,this paper begins with an overview of the design and application of space origami membranes before investigating the design of creases,deployable mechanisms,and the close connection between the two,focusing on the origami principle.This section introduces various crease types with different motion dimensions,folding characteristics,advantages,disadvantages,and optimization methods.Then,the deployable mechanisms'structures,principles,and performance characteristics in three unfolding spatial dimensions are presented comprehensively.Based on the preceding sections,this paper reviews the application of the origami principle to spacecraft solar arrays,antennas,solar sails,drag sails,and light shade structures,considering the current status,application purpose,and effect.Finally,the development trend of space origami membrane structures is analyzed. 展开更多
关键词 Crease design Deployable mechanisms Membrane structures Origami principle Spacecraft
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Arachidonic acid metabolic pathway-related genes interactions increase the incidences of stroke and vulnerable plaques 认领 引用
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作者 邵敏洁 《China Medical Abstracts(Internal Medicine)》 2016年第2期
Objective To investigate whether metabolic pathway-related gene polymorphisms are associated with arterial plaque stability and their gene-gene interactions increase the risk of cerebral infarctions.Methods Totally294... Objective To investigate whether metabolic pathway-related gene polymorphisms are associated with arterial plaque stability and their gene-gene interactions increase the risk of cerebral infarctions.Methods Totally294 patients with atherothrombosis stroke admitted to the Department of Neurology,the Third Affiliated Hospital 展开更多
关键词 plaques vulnerable carotid admitted unstable sonography genotype crease enrolled consistency
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Interleukin 10 knockout increases renal fibrosis of ischemia-reperfusion injury model mice 认领 引用
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作者 孙文晋 《China Medical Abstracts(Internal Medicine)》 2016年第2期
Objective To study the effect of interleukin（IL）-10knockout(IL-10-/-) on renal repair after renal ischemia-reperfusion injury in mice.Methods Eighteen IL-10-/- mice（KO）aged 8-10 weeks and 18 C57BL/6wild type mice... Objective To study the effect of interleukin（IL）-10knockout(IL-10-/-) on renal repair after renal ischemia-reperfusion injury in mice.Methods Eighteen IL-10-/- mice（KO）aged 8-10 weeks and 18 C57BL/6wild type mice（WT）aged 8-10 weeks were divided into control group（Sham）and renal ischemia-reperfusion in- 展开更多
关键词 Interleukin interleukin repair eosin creased interstitial eventually tubular visible staining
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Configuration Synthesis and Analysis of Capture Origami Mechanism Based on Graph Theory 认领 引用 被引量：1
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作者 Hui Yang Chuanlu Zhu +3 位作者 Chuanyang Li Yan Wang Jiantao Yao Yongsheng Zhao 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2025年第4期571-587,共17页
Origami mechanisms are extensively employed in various engineering applications due to their exceptional folding performance and deformability.The key to designing origami mechanisms lies in the design of the creases.... Origami mechanisms are extensively employed in various engineering applications due to their exceptional folding performance and deformability.The key to designing origami mechanisms lies in the design of the creases.The crease design is often derived from experience and inspiration,so it is crucial to have a systematic approach to crease design.In this paper,a novel synthesis approach based on graph theory is proposed,which effectively addresses the challenge of designing the creases in origami mechanisms.The essence of this method lies in the acquisition of the double symmetrical crease pattern through the directed graph product operation of two subgraphs.The crease pattern can be simplified by employing a technique that eliminates certain creases while preserving the non-isomorphism and symmetry of the pattern.An improved mixed-integer linear programming model is developed to achieve an automatic distribution of the peak_valley creases of the origami.The proposed method ultimately generates 12 unique double symmetrical crease patterns.The new method proposed in this paper,through systematic design,significantly improves the efficiency of mechanism design while opening up broad prospects for exploring new mechanism structures,thereby greatly expanding its application potential in cutting-edge fields such as aerospace engineering and intelligent robots. 展开更多
关键词 Configuration synthesis Crease design Origami mechanism Graph theory
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National Development and Reform Commission reported that the profit of non-ferrous metal industry decreases by 7% 认领 引用
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《China Nonferrous Metals Monthly》 2008年第8期1-2,共2页
On July 14th,National Development and Re- form Commission issued the economic report of the earlier 5 months of non-ferrous metal industry,indicating a decrease in the profit of key non-ferrous metal enterprises.Among
关键词 ferrous profit earlier smelting creased issued adj
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Bridgestone to Increase Radial Passenger Tire Production Capacity at Wuxi Plant 认领 引用
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《China Chemical Reporter》 2009年第12期10-10,共1页
On April 13th,Bridgestone Corporation announced that,in response to the expected medium-to-long term in-crease in demand for radial passenger tires in the Chinesemarket.it will increase production capacity at Bridgest... On April 13th,Bridgestone Corporation announced that,in response to the expected medium-to-long term in-crease in demand for radial passenger tires in the Chinesemarket.it will increase production capacity at Bridgestone(Wuxi)Tire Co.,Ltd.(Wuxi Plant).Bridgestone intends to start increased production 展开更多
关键词 passenger tires crease radial enable giving
全文增补中
Songwon Increases Prices of Antioxidants and UV Absorbers 认领 引用
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《China Chemical Reporter》 2008年第11期7-7,共1页
Songwon Industrial will increase global prices of antioxidants(up 7%-9%),UV stabilizers(6%),acid scavengers(10%-20%)as well as of its range of aminic antioxidants(20%)effective on orders received on or after May 1st,2... Songwon Industrial will increase global prices of antioxidants(up 7%-9%),UV stabilizers(6%),acid scavengers(10%-20%)as well as of its range of aminic antioxidants(20%)effective on orders received on or after May 1st,2008,or as contracts allow.Several factors have played a role-the continuous in-crease in crude oil prices-certain availability constraints 展开更多
关键词 prices crude crease constraints orders availabilit
全文增补中
BASF Announced Prices Increase on Engineering Plastics 认领 引用
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《China Chemical Reporter》 2005年第29期6-6,共1页
BASF announced on October 11,2005 a 10% price in-crease in Asia Pacific on its engineering plasticsproducts,effective October 15,2005,due to unprec-edented higher costs in raw materials,energy andtransportation.BASF’... BASF announced on October 11,2005 a 10% price in-crease in Asia Pacific on its engineering plasticsproducts,effective October 15,2005,due to unprec-edented higher costs in raw materials,energy andtransportation.BASF’s engineering plastics productsinclude Ultramid polyamide,Nypel polyamide,Capron polyamide,Ultradur PBT,Ultraform POMand Ultrason polysulfone and polyethersulfone.BASF continues its efforts to offset these costs 展开更多
关键词 BASF plastics crease offset costs
全文增补中
China Plans to Increase Coke Export Tariff 认领 引用
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《China Chemical Reporter》 2008年第22期6-6,共1页
After the ferrous ore price supplied to China has been in-creased 96%,Australian ferrous ore suppliers Rio Tinto and BHP Billiton recently announces to increase the price of ferrous ore supplied to Europe by 71%.The c... After the ferrous ore price supplied to China has been in-creased 96%,Australian ferrous ore suppliers Rio Tinto and BHP Billiton recently announces to increase the price of ferrous ore supplied to Europe by 71%.The cost advantage of the iron/steel sector in China has therefore lessened.China is planning to increase the export tariffof coke,an additional raw material for iron/steel works,to cope with the situation. 展开更多
关键词 Export ferrous creased suppliers sector Billiton A
全文增补中
Price Increase Helped Dyestuff Firms 认领 引用
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作者 Tian Liming 《China Chemical Reporter》 2008年第29期20-21,共2页
In the first half of 2008 China’s dyestuff and organic pigment sector came across the im-pacts from the reduced export rebates,ap-preciated RMB value against US dollar,in-creased labor cost,price rise of raw material... In the first half of 2008 China’s dyestuff and organic pigment sector came across the im-pacts from the reduced export rebates,ap-preciated RMB value against US dollar,in-creased labor cost,price rise of raw materials,plunged demand from downstream,pressure of energy conservation and pollutant reduc-tion and tight transportation,which 展开更多
关键词 downstream creased sector tight dollar reduc pigme
全文增补中
Prices of Resins Increased Considerably 认领 引用
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《China Chemical Reporter》 2009年第23期23-23,共1页
PolyethyleneIn early July 2009, due to the price rise ofpetrochemicals, PE (polyethylene) prices in-creased apparently. The prices of LDPE (lowdensity polyethylene) and LLDPE (linear lowdensity polyethylene) reached o... PolyethyleneIn early July 2009, due to the price rise ofpetrochemicals, PE (polyethylene) prices in-creased apparently. The prices of LDPE (lowdensity polyethylene) and LLDPE (linear lowdensity polyethylene) reached over RMB 10000. The price growth of HDPE (high den-sity polyethylene) was restricted because ofthe impact from imported goods. 展开更多
关键词 polyethylene prices apparently creased imported re
全文增补中
Oil/Gas Output Increases in Sinopec Northwest Company 认领 引用
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《China Chemical Reporter》 2007年第3期8-8,共1页
The output of crude oil in Sinopec Northwest Company was4.72 million tons in 2006,an increase of 520 000 tons over2005.The output of natural gas was 871 million m^3,an in-crease of 234 million m^3 over 2005.
关键词 Northwest crease crude
全文增补中
中国转基因作物的环境安全评介与风险管理 认领 引用 被引量：10
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作者 吴孔明 刘海军 《华中农业大学学报》 CAS CSCD 北大核心 2014年第6期112-114,共3页
基因工程技术是21世纪最伟大的科学技术之一,基因工程技术的应用开启了一次全新的农业"绿色革命"。自1996年美国第一例商业化转基因作物诞生以来,全球转基因作物的种植快速平稳增长。转基因作物的种植具有巨大的潜在效益,但... 基因工程技术是21世纪最伟大的科学技术之一,基因工程技术的应用开启了一次全新的农业"绿色革命"。自1996年美国第一例商业化转基因作物诞生以来,全球转基因作物的种植快速平稳增长。转基因作物的种植具有巨大的潜在效益,但是其可能带来的环境风险已成为了人们关心和争论的焦点。转基因作物的安全性已然成为许多国家和政府不得不面对的主要议题之一。在过去的20年里。 展开更多
关键词 基因工程技术 环境风险 潜在效益 cotton papaya 环境安全性 生产性试验 crops creased populations
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QUESTIONS AND ANSWERS 认领 引用
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作者 杨秀娟 尹秀琨 《Journal of Traditional Chinese Medicine》 1997年第2期154-155,共2页
Houxi (SI 3) is an acupoint on the Small Intestine Channel of Hand-Taiyang, which is located, when a fist is clenched, on the ulnar side, proximal to the 5th metacarpophalangeal joint, at the end of the transverse cre... Houxi (SI 3) is an acupoint on the Small Intestine Channel of Hand-Taiyang, which is located, when a fist is clenched, on the ulnar side, proximal to the 5th metacarpophalangeal joint, at the end of the transverse crease and the junction of the red and white skin. The proper use of this point may bring about magical effect. 展开更多
关键词 acupoint proximal junction crease manipulation shoulder needle transverse minutes stimulation
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Investigation on Bending and Creasing of Woven Fabrics under Low Curvature 认领 引用
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作者 Hu Jinlian.Shi FengjunThe Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong KongYu TongxiThe Hong Kong University of Science & Technology, Cleat Water Bay, Kowloon, Hong Kong. 《Journal of China Textile University(English Edition)》 1999年第2期26-31,共6页
Under the assumption of semi - circular form for a fabric bend, creasing of fabric strips and compression of fabric loops are analyzed by neglecting the structural complexity of the fabric. The relationship between th... Under the assumption of semi - circular form for a fabric bend, creasing of fabric strips and compression of fabric loops are analyzed by neglecting the structural complexity of the fabric. The relationship between the creasing force and deformation are deduced using an energy method and solutions are given for a linearly elastic material with constant internal frictional constraint. The agreements between the theoretical predictions and experimental results are very satisfactory. 展开更多
关键词 woven fabric bend crease
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