NOPR Collection:

Ahmad

2011-07-02T16:31:05Z

Title: Ahmad Authors: Kamaruddin, Mohamad Anuar; Yusoff, Mohd Suffian; Ahmad, Mohd Azmier Abstract: This study presents optimal conditions for preparation of durian peel based activated carbon (DPAC) for removal of ammoniacal nitrogen (NH₃-N) from semi-aerobic landfill leachate. DPAC was prepared using chemical activation method which consisted of phosphoric acid (H₃PO₄) treatment and nitrogen gasification. Optimum conditions for DPAC preparation (activation temperature, 400 °C; activation time, 2.27 h; and IR, 3) resulted in DPAC yield (21.02%) of and NH₃-N removal (46.49%). Page(s): 554-560

Performance improvement of a simple gas turbine cycle through integration of inlet air evaporative cooling and steam injection

2011-07-04T16:31:09Z

Title: Performance improvement of a simple gas turbine cycle through integration of inlet air evaporative cooling and steam injection Authors: Agarwal, Shyam; Kachhwaha, S S; Mishra, R S Abstract: Among many available retrofitting technologies to improve power generation capacity and efficiency of simple cycle gas turbine, inlet air cooling (IAC) and steam injection gas turbine (STIG) are considered most effective ways to modify an existing simple cycle unit. In this study, a simple cycle generation unit is considered as base unit and STIG and IAC features are sequentially retrofitted to the system. Retrofitting of simple cycle combined with IAC and STIG has been found to boost power output from 30 MW to 48.25 MW, while generation efficiency can be increased from 29.9% to 33.4%. Exergy destruction rate per MW of power output reduces for combustion chamber, compressor and HRSG, while increases for gas turbine for retrofitted cycles. Page(s): 544-553

Determination of saponin contents in raw soybean and fermented soybean foods of India

2011-07-02T16:31:09Z

Title: Determination of saponin contents in raw soybean and fermented soybean foods of India Authors: Omizu, Yohei; Tsukamoto, Chigen; Chettri, Rajen; Tamang, Jyoti Prakash Abstract: Saponin composition and contents in seeds of raw dry soybean and fermented soybean foods of India (kinema, bekang and tungrymbai) were investigated by liquid chromatography-tandem mass spectrometry analysis. Saponin contents were found as follows: raw soybeans, 401.8±46.8 - 686.9±33.9; seed hypocotyls, 2118.5±160.7 - 9049.3±788.6; seed cotyledon, 226.5±5.0 - 508.3±19.2; and fermented soybean foods, 243.4±25.8 - 590.3±29.0 mg/100g.Due to large amount of Group B saponin in ethnic fermented soybeans of India, it is presumed that soybean foods have health promoting benefits. Page(s): 533-538

Studies on microbial activity and dyeing performance of novel acid azo dyes based on 3-(4-aminophenyl)-2-phenylquinazolin-4(3h)-one

2011-07-03T16:31:05Z

Title: Studies on microbial activity and dyeing performance of novel acid azo dyes based on 3-(4-aminophenyl)-2-phenylquinazolin-4(3h)-one Authors: Parekh, Nikhil; Maheria, Kalpana; Patel, Pratik Abstract: This study presents synthesis of novel mono azo acid (MAA) dyes by diazotization of 3-(4-aminophenyl)-2-phenylquinazolin-4(3H)-one followed by coupling with naphthalene based acid components. All dyes gave moderate to very good fastness properties on each fiber. MAA showed good antifungal activity against Candida albicans. Page(s): 525-532