http://nopr.niscair.res.in/handle/123456789/11883 Search the Channel search http://nopr.niscair.res.in/simple-search http://nopr.niscair.res.in/handle/123456789/11898 Title: Oil spill cleanup by structured fibre assembly <br/> <br/>Authors: Karan, C Praba; Rengasamy, R S; Das, Dipayan <br/> <br/>Abstract: Oil is one of the important sources of energy in the modern industrial world. It has to be transported from the source of production to many places across the globe through oceans and inland transport. During transportation the chance of oil spillage over the water body occurs due to accidents or by deliberate action during war time and this causes environmental pollution. Sorbents made from structured fibre assembly are found to be the best material to clean up oil spill. The oil sorption and retention behavior of sorbents are influenced by the material and structure of the sorbents and oil physical characteristics. For sustainable environment, disposal of used sorbents is a major issue. In this context, the naturally available biodegradable materials have great potential than the synthetic ones. This paper reviews about oil spill cleanup with special emphasis on the phenomenon of oil sorption, methods of oil spill cleanup, characteristics of oil sorbent materials, fluid flow through fibrous materials, types of fibre materials envisaged for making sorbents and test methods for oil sorbents. <br/> <br/>Page(s): 190-200 Sun, 29 May 2011 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/11897 Title: Properties of oak tasar/viscose blended yarns <br/> <br/>Authors: Gahlot, Manisha <br/> <br/>Abstract: Oak tasar fibres and viscose rayon fibres have been blended in different proportions (65/35, 50/50 and 35/65) to produce a binary mixture of fibres for preparing 16 count yarns. Viscose and blended yarns have been tested for different properties such as yarn strength, elongation, tenacity, count strength product, unevenness and hairiness. It is observed that the yarn strength, elongation and tenacity values decrease with the increase in tasar silk fibre component in blend. Count strength product values are found to increase with the increase in viscose component in the blend and similar trend is also noticed for lea strength values. Maximum unevenness percentage is recorded in 65/35 tasar/viscose blended yarn followed by the yarns of 50/50 and 35/65 tasar/viscose in comparison to pure viscose yarn having minimum unevenness. Hairiness value and index increase with the increase in tasar silk fibre proportion in the blend. <br/> <br/>Page(s): 187-189 Sun, 29 May 2011 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/11896 Title: Determination of sinking time of partially scoured cotton fibres <br/> <br/>Authors: Kavitha, K; Selvakumar, N <br/> <br/>Abstract: Efforts have been made to modify the existing standard method IS: 2369 - 1967 which is meant for the determination of sinking time of well-scoured cotton fibres. A fibre container has been prepared to achieve standard dimensions in the fibre mass in cake form at the time of sample preparation and testing. Minute holes are made at the bottom and the lid of the container and the fibre cake is kept inside it to come in contact with water taken in a specially fabricated glass trough. Holes with diameters 0.25, 0.5 and 1.0 mm have been studied to assess their effect on sinking time. It is observed that the fibre container provided with holes having 0.5 mm diameter performs very effectively for the determination of sinking time of partially scoured cotton fibres. This method is also found to be suitable for well scoured cotton fibres. As this method is suitable for the determination of sinking time of cotton fibres scoured to any extent, it may be considered by the standards organizations for introducing it as a standard testing method following the necessary protocols. <br/> <br/>Page(s): 183-186 Sun, 29 May 2011 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/11895 Title: Development of digital moisture meter for jute fibre and its products <br/> <br/>Authors: Roy, Gautam; Saha, S C <br/> <br/>Abstract: A new type of digital instrument has been developed using the resistance measurement method with a new concept of built-in lookup table form, which has been proved as more accurate than other available moisture meters. The operations are controlled by a microprocessor unit and provide the result on a digital display. The test is non-destructive and process of sample preparation is free from human errors. The same instrument can also be used for other fibres simply by changing the lookup table for that particular fibre. <br/> <br/>Page(s): 178-182 Sun, 29 May 2011 22:58:59 GMT