http://nopr.niscair.res.in/handle/123456789/11900 Search the Channel search http://nopr.niscair.res.in/simple-search http://nopr.niscair.res.in/handle/123456789/11929 Title: Experimental investigations on sound insulation through single,double & triple window glazing for traffic noise abatement <br/> <br/>Authors: Garg, Naveen; Sharma, Omkar; Maji, Sagar <br/> <br/>Abstract: This study presents sound insulative sandwich window constructions of high sound transmission class (STC) value forabatement of traffic and aircraft noise in Delhi city. An empirical relationship correlating with thickness of glass for variouswindow configurations has been developed. Significant increase in sound insulation is observed at higher frequencies when eitherone glazing is double or both glazing are double. Increasing thickness of glass pane, coincidence dip shifts towards lower frequencyand also with increasing air gap, a significant improvement in sound insulation characteristics in both low and high frequencies isobserved. <br/> <br/>Page(s): 471-478 Sun, 29 May 2011 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/11928 Title: Evaluation of soybean/canola/palm biodiesel mixture as an alternative diesel fuel <br/> <br/>Authors: Ozcanli, Mustafa; Serin, Hasan <br/> <br/>Abstract: This study examines fuel properties and performance characteristics of diesel engine fueled with three different biodieselmixtures (soybean, canola and palm oils) and their blends with diesel fuel according to ASTM and EN standards. Viscosity andpour point of soybean-canola-palm (S-C-P) biodiesel blends were found out of standard ranges. Blend with soybean(25%) - canola (25%) - palm (25%) - diesel (25%) reached acceptable fuel properties (kinematic viscosity 4.3 mm2/s, cetanenumber 53, pour point -4°C). It performed 3% power loss with 8% higher specific fuel consumption. While CO and CO2emissions were reduced, NOx emissions were increased with increasing biodiesel contents in blends. As a result, diesel usage wasminimized to 25% by blending it with S-C-P biodiesels together. <br/> <br/>Page(s): 466-470 Sun, 29 May 2011 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/11927 Title: 6-Benzylaminopurine improves shelf life, organoleptic quality and healthpromoting compounds of fresh-cut broccoli florets <br/> <br/>Authors: Siddiqui, Md Wasim; Bhattacharjya, Amrita; Chakraborty, Ivi; Dhua, R S <br/> <br/>Abstract: Fresh-cut broccoli (Brassica oleracea var. italica) florets were subjected to 6-benzylaminopurine (BAP) treatment bydipping in BAP [0, 5, 10 and 15 ppm] for 10 min and stored at 6±1°C. Treatment with BAP (10 ppm) significantly delayedyellowing and chlorophyll degradation, consequently maintained organoleptic quality during storage. Treated florets had higherretention of health promoting compounds (protein and ascorbic acid) in relation to control. Treatment with 10 ppm BAP couldbe a useful method to extend shelf life of fresh-cut broccoli florets during storage at 6±1°C at commercial level. <br/> <br/>Page(s): 461-465 Sun, 29 May 2011 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/11926 Title: Homogenate extraction of isoflavones from soybean meal by orthogonal design <br/> <br/>Authors: Zhu, Xing-Yi; Lin, Hai-Min; Xie, Jie; Chen, Shan-Shan; Wang, Ping <br/> <br/>Abstract: Factors that affect yield of isoflavones extracted from soybean meal by using homogenate extraction method were studied byorthogonal design experiment [L9(34)]. Optimum extraction conditions were found as follows: sample particle size, 60 mesh;ethanol concentration, 60%; extraction time, 50 s; ratio of material to liquid, 1 g: 20 ml; and yield of isoflavones, 0.52 ± 0.01%.Compared with traditional heat refluxing extraction method, yield of homogenate extraction was 29.3% higher, and extraction timewas significantly shortened. <br/> <br/>Page(s): 455-460 Sun, 29 May 2011 22:58:59 GMT