http://nopr.niscair.res.in/handle/123456789/4773 Search the Channel search http://nopr.niscair.res.in/simple-search http://nopr.niscair.res.in/handle/123456789/4948 Title: Effect of thermal and redox initiator on emulsion copolymerization of styrene – butyl acrylate and comparison of paint properties <br/> <br/>Authors: Khan, A K; Roy, B C; Dolui, S K <br/> <br/>Abstract: Emulsion copolymerization of styrene with butylacrylate was carried out by thermal and redox initiator. The effect of initiator on molecular weight of the polymer and performance of surface coatings has been described. <br/> <br/>Page(s): 744-746 http://nopr.niscair.res.in/handle/123456789/4947 Title: Catalytic wet air oxidation of toxic nitrogen containing compounds (pyridine) from wastewater <br/> <br/>Authors: Chaudhary, Raja Raman; Kumar, Pradeep; Chand, Shri <br/> <br/>Abstract: Cu-Co/C (heterogeneous) and CuSO₄ (homogeneous) were used as catalysts for wet air oxidation to remove nitrogen containing toxic organic compounds from wastewater. For this purpose, a model compound, pyridine, was treated in a high-pressure batch autoclave at mild conditions of temperature and pressure. Copper and cobalt are relatively inexpensive catalytic material and have shown higher conversion efficiencies. Both CuSO₄ and Cu-Co/C have optimum activity at an initial pH 4 of the pyridine solution. After 2 h of reaction time, % conversion with CuSO₄ (75.1 %) was more in comparison to Cu-Co/C (71.8 %) using 5 mg/l catalyst concentration at 160 ^oC and 9 bar total pressure. <br/> <br/>Page(s): 757-759 http://nopr.niscair.res.in/handle/123456789/4946 Title: Determining expedited time and cost of the end product with defective component parts using critical path method (CPM) and time-costing method <br/> <br/>Authors: Chiu, Singa Wang; Chiu, Yuan-Shyi Peter; Shih, Chih-Chang <br/> <br/>Abstract: This paper extends an existing work that dealt with the issue of expediting completion time of the end product (ECTEP) and presents a revised algorithm for determining the expedited time and cost of end product in product structure diagram that takes defective component parts into consideration. The algorithm for ECTEP problem proposed in prior work assumes that all component-parts produced or purchased are of perfect quality. However, in real-life situations, production of defective items is inevitable. This study incorporates an adjusted unit procurement cost and adjusted quantity into the ECTEP solution procedure to cope with the existence of defective materials. Both stationary and random defective rates are examined. Critical path method and time-costing technique are employed for determining optimal component procuring alternatives when expediting end product’s completion time is desired. <br/> <br/>Page(s): 695-701 http://nopr.niscair.res.in/handle/123456789/4945 Title: A proposed neural internal model control for robot manipulators <br/> <br/>Authors: Yıldırım, Şahin <br/> <br/>Abstract: This paper describes the design of a Neural Internal Model Control (NIMC) system for robots, based on Recurrent Hybrid Networks (RHNs). The NIMC, an alternative to the basic inverse control scheme, consists of a forward internal neural model of robot, a neural controller and a conventional feedback controller. An Alopex Learning Algorithm (ALA) was used to adjust weights of the proposed neural network. Backpropagation (BP) algorithm is also employed for comparison. Diagonal Recurrent Networks (DRNs) and Feedforward Neural Networks (FNNs) controllers were used for comparison. The robot in this study was adept one SCARA type robot manipulator. <br/> <br/>Page(s): 713-720