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RISS 인기검색어
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- 저자 : Rajkishore (검색결과 4 건)
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Impact Resistance and Comfort Properties of Textile Structures for Sportswear
Rajkishore Nayak,Sinnappoo Kanessalingam,Arun Vijayan,Lijing Wang,Rajive Padhye,Lyndon Arnold 한국섬유공학회 2020 Fibers and polymers Vol.21 No.9
Protective padding is commonly used in many sporting activities to prevent impact related injuries. In rugby,shoulder pads absorb and disperse the force and energy of an impact with a playing surface or another player. Although themajority of the commercial shoulder pads currently available can reduce the impact force during a front-on tackle, theyprovide limited amount of thermal comfort to the wearer. In this research, flexible textile structures were designed andinvestigated for their potential to effectively dissipate the force of impact over a wider area, thus reducing the risk of injury. The impact resistance of these textile structures placed over a body simulant was compared against commercial foam padsusing a ‘drop test’ method. The results indicated that all the flexible textile structures reduced the impact force. Although theirprotection level was not as high as the commercial foam, the textile structures showed a higher level of thermal comfort asmeasured by air permeability, thermal resistance and water vapor resistance. The results were analyzed using onewayANOVA followed by post-hoc analysis using IBM SPSS software. The Post-hoc analysis showed a significant differenceamong the test results of various fabrics for impact absorption, air permeability, thermal resistance and water vaporresistance, which are also discussed in this paper.
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The use of laser in garment manufacturing: an overview
Rajkishore Nayak,Rajiv Padhye 한국의류학회 2016 Fashion and Textiles Vol.3 No.1
Laser is being used in apparel industry from nineteenth century for various garment manufacturing applications. There are several advantages of using laser over the conventional processes in cutting, engraving, embossing, denim fading and other applications. In addition, product damage potential is reduced, no/less consumables are needed and no problem of toxic by-product disposal as found in some processes. Today’s laser equipment is a result of continuous research and development of earlier products, which has undergone several changes. The initial laser systems were cumbersome, hard to run and difficult to maintain. However, the modern laser systems are simpler in operation and maintenance. Furthermore, the earlier systems were involved with more safety issues and needed the gasses to be constantly replenished. The garment manufactures around the globe should take the advantage of laser application in the post multi-fibre agreement regime to make their products more competitive. This review focuses on the technology of laser including various classifications. In addition it includes the applications of laser in garment manufacturing, their potential hazards and health related concerns.
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RFID in textile and clothing manufacturing: technology and challenges
Rajkishore Nayak,Amanpreet Singh,Rajiv Padhye,Lijing Wang 한국의류학회 2015 Fashion and Textiles Vol.2 No.1
In the field of textile and clothing, radio frequency identification (RFID), which is one of the most promising technological innovations, is used in manufacturing, inventory control, warehousing, distribution, logistics, automatic object tracking and supply chain management. Various retailers and manufacturers (of clothing as well as consumer goods) such as CVS, Tesco, Prada, Benetten, Wal-mart and Procter & Gamble, are now implementing the technology and exploring the impact of the technology on their business. RFID technologies may improve the potential benefits of supply chain management through reduction of inventory losses, increase of the efficiency and speed of processes and improvement of information accuracy. The basic of success lies in understanding the technology and other features to minimize the potential problems. Although the technology existed for several years, the technological challenges and cost issues are the major hurdles for the widespread use of RFID. In this paper, the authors have addressed the technology of RFID and various applications related to inventory management, production control, retail management, brand segregation etc. in textile and clothing industry. In addition, the disadvantages, challenges and future directions of RFID technology have also been highlighted.
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Relative Spectral Power and Power Spectral Density Changes in Motor Rhythm for Movement Imagination
Manoj Kumar Mukul,Rajkishore Prasad,Fumitoshi Matsuno 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
EEG signals are not the direct access to the level of thought and thought related actions but it represents shadow of that and hence to some extent thought related patterns can be inferred and used for controlling action The Useful information contained in EEG signal is in the form of EEG Rhythm. Rhythmic analysis of EEG signal is very important for extraction of good features for classification of movement imagery data. This paper proposed the feature which is sum of power spectral density of left hemisphere channel (C3) as well as right hemisphere channel (C4) for movement imagery trials.
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