نتایج جستجو برای: hollow ring yarn

تعداد نتایج: 140219  

2010
Shaoli Fang Mei Zhang Anvar A. Zakhidov Ray H. Baughman Alan G. MacDiarmid

Introduction We have previously reported downsizing ancient twistbased spinning technology for making continuous, densified nanotube yarns from multi-walled carbon nanotube (MWNT) forests [1]. Such nanotube yarns provide unique properties and property combinations. Despite this important progress, the relationship between nanotube yarn properties and component carbon nanotube properties is not ...

2016
Takako Igarashi Koichi Nakamura Masato Hoshi Teruyuki Hara Hironori Kojima Masatsugu Itou Reiko Ikeda Yoshimasa Okamoto

We investigated the actual factor determining the softening effect of a fabric softener. The adsorption area of the softener on model cotton cloths and yarns was identified using bromophenol blue. There was almost no softener at the cross-points of the yarns in the cloth samples or in the inner part of the yarns. The softening performance was better when there was less softener at the cross-poi...

2015
Ning Pan Radko Kovar Mehdi Kamali Dolatabadi Ping Wang Diantang Zhang Ying Sun Li Chen

Textile fabrics are highly anisotropic, so that their mechanical properties including strengths are a function of direction. An extreme case is when a woven fabric sample is cut in such a way where the bias angle and hence the tension loading direction is around 45° relative to the principal directions. Then, once loaded, no yarn in the sample is held at both ends, so the yarns have to build up...

2017
Jonathan G. Gigax Philip D. Bradford Lin Shao

We studied the effects ion beam irradiation on carbon nanotube (CNT) yarns. CNT yarn was fabricated by drawing and spinning CNT sheets from a vertically aligned CNT forest. The yarn was irradiated by 2.5 MeV protons in either vacuum or air. Irradiation in air was achieved by directing the proton beam through a 0.025 mm thick Ti window. Irradiation in vacuum occurred at a pressure of <10-6 torr ...

2011
M. Senthilkumar

Elastane fibres show rubber like behavior and are highly stretchable. Basically these fibres contain polyurethane bonds. Elastic fabrics are an important route to achieve comfort by freedom of movement for body fitted with sports and outdoor wear. Elastic garments used in athletics and sports may improve the athlete’s performance in cycling, swimming and so on. A great deal of research is repor...

2013
Neha Gupta P. K. Bharti

This article presents a quality improvement study applied at a yarn manufacturing company based on six sigma methodologies. More specifically, the DMAIC (Define, Measure, Analyze, Improve, and Control) project management-methodology & various tools are utilized to streamline processes & enhance productivity. Defects rate of textile product in the yarn manufacturing process is so important in in...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1379

‏‎for the first time nakayama introduced qf-ring. in 1967 carl. faith and elbert a. walker showed that r is qf-ring if and only if each injective right r-module is projective if and only if each injective left r-modules is projective. in 1987 s.k.jain and s.r.lopez-permouth proved that every ring homomorphic images of r has the property that each cyclic s-module is essentialy embeddable in dire...

1999
A. V. Nikulov

An inhomogeneous superconducting ring (hollow cylinder) placed in a magnetic field is considered. It is shown that a direct voltage appears on section with lowest critical temperature when it is switched periodically from the normal state in the superconducting state and backwards, if the magnetic flux contained within the ring is not divisible by the flux quantum. The superconducting transitio...

Journal: :IEEE Trans. Vis. Comput. Graph. 2003
Yanyun Chen Stephen Lin Hua Zhong Ying-Qing Xu Baining Guo Harry Shum

We present a framework for knitwear modeling and rendering that accounts for characteristics that are particular to knitted fabrics. We first describe a model for animation that considers knitwear features and their effects on knitwear shape and interaction. With the computed free-form knitwear configurations, we present an efficient procedure for realistic synthesis based on the observation th...

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