http://nopr.niscpr.res.in/handle/123456789/13611 2026-10-20T22:10:44Z http://nopr.niscpr.res.in/handle/123456789/13625 Title: Study on degradation of H-acid by <i>Alcaligenes latus </i>isolated from textile industrial effluent Authors: Usha, M S; Sanjay, M K; Gaddad, S M; Shivannavar, C T Abstract: This study presents 100% degradation of H-acid under optimized conditions using <i>Alcaligenes latus</i>, isolated from textile industrial effluent. Gene/s responsible for H-acid degradation was/were found to be present on plasmid DNA. Addition of bipyridyl to incubated medium resulted in accumulation of terminal aromatic compound, suggesting that catechol may be terminal aromatic compound in degradation pathway of H-acid by <i>A. latus</i>. SDS-PAGE of cell free extracts showed two prominent bands close to molecular weight of catechol 1,2-dioxygenase. Page(s): 235-240 2012-03-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/13624 Title: Passive noise control measures for traffic noise abatement in Delhi, India Authors: Garg, Naveen; Sharma, Omkar; Mohanan, Vellur; Maji, Sagar Abstract: This study proposes a comprehensive noise abatement programme following the best practicable and economical option (BPEO) for implementation in metro city like Delhi for reducing annoyance and ill effects of traffic noise. It reviews potential applications of noise control barriers and vegetation for reducing road traffic noise and presents a design morphology and decision matrix using TOPSIS (Technique for order preference by similarity to ideal solution) approach for selection of appropriate sound barriers. Page(s): 226-234 2012-03-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/13623 Title: Reduction of motor fan noise using jute composites Authors: Ramakrishna, S; Ramakrishna, A; Ramji, K Abstract: This study presents fabrication methodology of two redesigned fans for noise reduction and improving cooling performance of baseline fan (original configuration fan). These two redesigned fans (Fan-1 and Fan-2) are fabricated using glass and jute fiber in propylene glycol resin by hand lay-up technique. Page(s): 221-225 2012-03-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/13622 Title: Biogas production through mixed fruit wastes biodegradation Authors: Narayani, T G; Priya, P Gomathi Abstract: This study presents biogas production from fruit wastes at ambient temperature using anaerobic batch digester (500 ml). Co-digestion of fruit wastes were carried out with rice bran and cow dung. Biogas production from different samples was as follows: Sample A (fruit waste), 363; sample B (fruit waste, 75% + cow dung, 25%), 405; sample C (fruit waste, 75% + rice bran, 25%), 315; and sample D (fruit waste, 50% + rice bran, 25% + cow dung, 25%), 381 ml. From chromatographic studies, sample B has maximum methane content (80%) and sample C has maximum carbon-di-oxide content (50%). Cow dung influences digestion of fruit wastes and showed highest yield (405 mg) of biogas production. Page(s): 217-220 2012-03-01T00:00:00Z