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基于PLC的二维智能仓储控制 被引量:2
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作者 周洋 韩亚军 张郭 《可编程控制器与工厂自动化(PLC FA)》 2011年第6期97-99,共3页
本文介绍了一种用于自动装料的二维智能仓储控制系统,对二维智能仓储过程进行了系统的分析,提出了基于PLC的二维智能仓储控制方案中料仓选择思路及移动装料点移动方法,提高了效率和装料精度。
关键词 二维料仓组 智能仓储 智能装料
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Characteristic of Intelligent Air Bag Venting Structure Actuating by Electrostrictive Stack Actuator
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作者 戈嗣诚 《Journal of Southeast University(English Edition)》 EI CAS 2002年第2期119-122,共4页
In this paper the conception of smart materials and structures is firstly combined with research of air bag,and the main theory of self adapting cushioning of intelligent air bag is expatiated.The intelligent venting... In this paper the conception of smart materials and structures is firstly combined with research of air bag,and the main theory of self adapting cushioning of intelligent air bag is expatiated.The intelligent venting structure is the main part affecting the cushioning result.Electrostrictive material was found having big force,high response speed and wide linearity,and it is fit to utilize in intelligent venting structure. The characteristic of the dynamic response and cushioning actuating of an electrostrictive stack actuator is analyzed,and the result of the computer simulation of the fuzzy control to intelligent venting structure is given.It is concluded that intelligent venting structure has good actuating characteristic and can satisfy the need of intelligent air bag. 展开更多
关键词 intelligent air bag electrostrictive stack actuator venting structure
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Shape memory behavior of SMPU knitted fabric 被引量:2
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作者 CHUNG Aggie 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2007年第5期830-834,共5页
A preliminary investigation of shape memory (SM) effects of SMPU (shape memory polyurethane) knitting fabric is presented in this paper. Three SMPU knitted fabrics series with different content of SMPU fibers: 100% SM... A preliminary investigation of shape memory (SM) effects of SMPU (shape memory polyurethane) knitting fabric is presented in this paper. Three SMPU knitted fabrics series with different content of SMPU fibers: 100% SMPU, 50% SMPU and 50% cotton, 16% SMPU and 84% cotton are designed and manufactured in our lab. Their shape memory behaviors at different temperatures are characterized in terms of bagging. Our experimental results showed that shape memory effect can be improved with increasing content of SMPU fibers. A comparison between Lycra and SMPU knitted fabrics was also made to validate the shape memory effects of SMPU knitted fabrics. 展开更多
关键词 SMPU (shape memory polyurethane) fiber Shape memory (SM) BAGGING RECOVERY
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New approach for chiral separation: from polysaccharide-based materials to chirality-responsive polymers 被引量:2
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作者 DING Peng CHANG BaiSong +1 位作者 QING GuangYan SUN TaoLei 《Science China Chemistry》 SCIE EI CAS 2014年第11期1492-1506,共15页
Chiral separation that is closely related to daily life is a meaningful research. Polysaccharide-(e.g., cellulose, amylose derivatives) based chiral packing materials afford powerful chiral stationary phases(CSPs) tow... Chiral separation that is closely related to daily life is a meaningful research. Polysaccharide-(e.g., cellulose, amylose derivatives) based chiral packing materials afford powerful chiral stationary phases(CSPs) toward a broad range of racemic compounds. However, considering the explosive growth of specific chiral drugs, the separation efficiencies of these CSPs need further improvement, which calls for new approaches and strategies. Smart polymers can change their physical or chemical properties dynamically and reversibly according to the external stimuli(e.g., thermo-, pH, solvent, ion, light, critical parameters for chromatographic separation) exerted on them, subsequently resulting in tunable changes in the macroscopic properties of materials. In addition to their excellent controllability, the introduction of chiral characteristics into the backbones or side-chains of smart polymers provides a promising route to realize reversibly conformational transition in response to the chiral analytes. This dramatic transition may significantly improve the performance of materials in chiral separation through modulating the enantioselective interactions between materials and analytes. With the help of chirality-responsive polymers, intelligent and switchable CSPs could be developed and applied in column-liquid chromatography. In these systems, the elution order or enantioselectivity of chiral drugs can be precisely modulated, which will help to solve many challenging problems that involve complicated enantiomers. In this paper we introduce some typical examples of smart polymers that serve as the basis for a discussion of emerging developments of CPSs, and then briefly outline the recent CSPs based on natural and certain synthetic polymers. 展开更多
关键词 chiral separation chiral stationary phases(CSPs) ENANTIOSEPARATION HPLC smart polymer
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Recent advances in new-type molecular switches 被引量:4
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作者 Hong Li Da-Hui Qu 《Science China Chemistry》 SCIE EI CAS CSCD 2015年第6期916-921,共6页
Molecular switches that can undergo reversible switching between two or more different states in response to external stimuli have been used in the fabrication of various optoelectronic devices and smart materials for... Molecular switches that can undergo reversible switching between two or more different states in response to external stimuli have been used in the fabrication of various optoelectronic devices and smart materials for many decades, and also found many applications in sensing, molecular self-assembly and photo-controlled biological systems. Recently, mechanically interlocked molecules, such as rotaxanes and catenanes, and molecular rotary motors based on overcrowded alkenes have emerged as two new kinds of molecular switches. Some novel applications of above-mentioned molecular switches have been discovered. In this mini review, we mainly highlight noticeable achievements over the past decade in this field, and summarize the applications of new types of molecular switches, for instance, controlling the chiral space to regulate catalytic reaction as organocatalysts, controlling molecular motions, synthesizing a peptide in a sequence-specific manner and modulating the wettability of the self-assembled monolayers. 展开更多
关键词 molecular switches ROTAXANE molecular motor STIMULI-RESPONSIVE FUNCTION
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