http://nopr.niscair.res.in/handle/123456789/10076 Search the Channel search http://nopr.niscair.res.in/simple-search http://nopr.niscair.res.in/handle/123456789/10114 Title: Enhancement of biomethanization by pretreatment of limed fleshingsfrom tanneries <br/> <br/>Authors: Ravindranath, E; Gopalakrishnan, A Navaneetha <br/> <br/>Abstract: This study presents effect of pretreatment using anaerobic inoculum (PT-AI) and thermo-chemical pretreatment (PT-TC) on solubilization of limed fleshings (LFs). Solubilization of LF in PT-AI (93.3%) was more than PT-TC. From biochemical methane potential (BMP) studies, LFs with PT-AI generated 0.16 m³ of CH₄ /kg COD_total added, which was 2.7 and 1.5 times more than LFs pretreated with NaOH and KOH respectively. <br/> <br/>Page(s): 711-716 Sun, 29 Aug 2010 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/10113 Title: Heat and mass transfer study in a direct evaporative cooler <br/> <br/>Authors: Kachhwaha, S S; Prabhakar, Suhas <br/> <br/>Abstract: This paper presents a simple and efficient methodology to design a household desert cooler, predict performance of evaporative medium and determine pad thickness and height for achieving maximum cooling. Inputs for formulation include inlet air DBT and humidity ratio, air velocity, water temperature and flow rate, and geometrical properties of evaporative medium. A test rig was designed and fabricated to collect experimental data. Predictions of air condition at cooler outlet for given input conditions agree satisfactorily for air exit temperature (+15%) and humidity ratio (+10%). Results are useful for size selection of medium geometry required for an evaporative cooler design. <br/> <br/>Page(s): 705-710 Sun, 29 Aug 2010 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/10112 Title: Pharmacognostic and phytochemical evaluation of leaf galls of <i>Kakadshringi </i>used in Indian system of medicine <br/> <br/>Authors: Upadhye, Anuradha S; Rajopadhye, Anagha A <br/> <br/>Abstract: <i>Kakadshringi</i>, a well-known crude drug used as antidiarrheal in Indian system of traditional medicine, is leaf gall of <i>Pistacia</i> <i>integrrima </i>Stew. ex Brindis., <i>Terminalia chebula </i>Retz. and <i>Garuga pinnata </i>Roxb. This study presents pharmacognostic and phytochemical evaluation on galls of three botanically different plant species to establish identification markers. Phytochemical analysis revealed that gallic acid and phenol content were higher in <i>P. integrrima </i>than other two samples. Occurrence of gallic acid was: <i>P. integerrima </i>(15.41 ± 0.016 mg/g) > <i>T. chebula </i>(8.65 ± 0.024 mg/g) > <i>G. pinnata </i>(6.80 ± 0.0113 mg/g). Thus, <i>P.</i> <i>integrrima</i>, which contains higher amounts of tannins than <i>T. chebula </i>and <i>G. pinnata</i>, is recommended as potential for antidiarrheal activity. <br/> <br/>Page(s): 700-704 Sun, 29 Aug 2010 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/10111 Title: Fabrication of dissolved O₂ metric uric acid biosensor based on uricase bound to PVC membrane <br/> <br/>Authors: Bhawna; Pundir, C S <br/> <br/>Abstract: This study presents fabrication of dissolved O₂ (DO) metric uric acid biosensor based on uricase bound to PVC membrane with 87% retention of initial activity of free enzyme. Enzyme membrane conjugate was mounted over sensing part of combined electrode of DO meter (Aqualytic-OX53, Germany) to construct a uric acid biosensor, which showed optimum response within 10-12 s at pH 9.0 and 35^°C. A linear relationship was found between uric acid concentration (lower conc. range, 0.1-0.8 mg/dl; higher conc. range, 1.0-10.0 mg/dl) and O₂ (mg/l) consumed. Biosensor showed mean uric acid level in serum in apparently healthy males (6.1 mg/dl) and healthy females (4.9 mg/dl). Enzyme electrode showed only 32% decrease in initial activity after 100 reuse over 60 days when stored at 4^°C. <br/> <br/>Page(s): 695-699 Sun, 29 Aug 2010 22:58:59 GMT