ABSTRACT In order to recover energy and recycle waste materials, an experimental study was performed on utilization of waste materials in catalytic steam gasification system. In current research, an alternative method of hydrogen... more
ABSTRACT In order to recover energy and recycle waste materials, an experimental study was performed on utilization of waste materials in catalytic steam gasification system. In current research, an alternative method of hydrogen production is achieved by blending of palm kernel shell (PKS) with waste tyre as a promising energy resource. Experiments were carried out at 600-800ºC with steam/feedstock ratio (S/F) of 2-4 (kg/kg) and waste tyre/PKS ratio of 0-0.3 (kg/kg). This paper reports the results obtained from series of experiments that have been performed, on a pilot plant to improve hydrogen production efficiency. The highest H2 and total syngas content of 66.15 vol% and 83.8 vol% was achieved respectively under condition of 800ºC and 30 wt% of waste tyre blended with PKS and S/F ratio of 4 (kg/kg). The results obtained confirmed that mixtures of PKS and waste tyre in catalytic steam fluidized bed system produced a fuel gas with a calorific value of 14.76 MJ/Nm3 which has the potential to be utilized in engines.
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Today, IT governance is common because the managers of organizations adopt structures and IT governance frameworks such as COBIT to guide and maintain their organizations business goals. Nevertheless, adopting a governance structure does... more
Today, IT governance is common because the managers of organizations adopt structures and IT governance frameworks such as COBIT to guide and maintain their organizations business goals. Nevertheless, adopting a governance structure does not mean that the organization has effectively implemented a governance structure aligned with IT, keeping and improving the business. This article, deals with the effect and relation
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We develop a multi-objective model for the time-cost trade-off problem in a dynamic PERT network using an interac- tive approach. The activity durations are exponentially distributed random variables and the new projects are generated... more
We develop a multi-objective model for the time-cost trade-off problem in a dynamic PERT network using an interac- tive approach. The activity durations are exponentially distributed random variables and the new projects are generated according to a renewal process and share the same facilities. Thus, these projects cannot be analyzed independently. This dynamic PERT network is represented as a network
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Page 1. A. Özcan, N. Chaki, and D. Nagamalai (Eds.): WiMo 2010, CCIS 84, pp. 283294, 2010. © Springer-Verlag Berlin Heidelberg 2010 A Survey on Application of Neural Networks in Energy Conservation of Wireless Sensor Networks ...
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ABSTRACT A simple and efficient method based on hollow fiber protected headspace liquid-phase in conjunction with high performance liquid chromatography has been introduced for extraction and determination of three residual monomers... more
ABSTRACT A simple and efficient method based on hollow fiber protected headspace liquid-phase in conjunction with high performance liquid chromatography has been introduced for extraction and determination of three residual monomers (2-ethylhexyl acrylate (EHA), vinyl acetate (VA), glycidyl methacrylate (GM)) in polymer latex. Using this methodology, the analytes of interest extracted from a sample are led into organic solvent located inside the porous hollow fiber membrane. Initially, several experimental parameters were controlled and optimized and the optimum conditions were reached with 8 cm neatly cut hollow fibers containing heptanol, which were exposed to the headspace of a 12 mL sample solution containing 20% (w/v) NaCl thermostated at 110 °C and stirred at 800 rpm for 20 min. Finally, 20 μL of the extraction solution was withdrawn into a syringe and injected into HPLC for analysis. The calibration curves were linear (r2 ≥ 0.994) over the concentration range of 0.05–10 mg L−1 for VA and 0.02–10 mg L−1 for other analytes. The relative standard deviation (RSD%) for three-replicate extractions and measurements was below 8.6%. The limits of detection of this method for quantitative determination of the analytes were found within the range of 0.005 to 0.011 mg kg−1 with the enrichment factors within the 5–164 range. The method was successfully applied for determination of residual monomers in polymer latex.
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In this paper, we propose an exact method for solving a special integer program associated with the classical capacitated arc routing problems (CARPs) called split demand arc routing problems (SDARP). This method is developed in the... more
In this paper, we propose an exact method for solving a special integer program associated with the classical capacitated arc routing problems (CARPs) called split demand arc routing problems (SDARP). This method is developed in the context of monotropic programming theory and bases a promising foundation for developing specialized algorithms in order to solve general integer programming problems. In particular,
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Page 1. Increasing overall network security by integrating Signature-Based NIDS with Packet Filtering Firewall Hamed Salehi Payam Noor University Information Services Corporation Tehran, Iran h_salehi@isc.iranet.net Hossein ...
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Monden [11] defined two goals for the mixed-model assembly line sequencing prob-lem: (1) Leveling the load on each station on the line, and (2) Keeping a constant rate of usage of every part used by the line. To handle these problems,... more
Monden [11] defined two goals for the mixed-model assembly line sequencing prob-lem: (1) Leveling the load on each station on the line, and (2) Keeping a constant rate of usage of every part used by the line. To handle these problems, Goal chasing I and II (GC-I and GC-II ) ...
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This paper examines unemployment hysteresis in the Belgian labor market. It estimates models of wage determination using aggregate and firm-level panel data. The conclusions are: (i) the long-term unemployed do not exert a negative impact... more
This paper examines unemployment hysteresis in the Belgian labor market. It estimates models of wage determination using aggregate and firm-level panel data. The conclusions are: (i) the long-term unemployed do not exert a negative impact on wages; and (ii) the incumbent ...
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Business/IT strategic alignment has been discussed as a key subject for managers for a long time. This is while IT governance is also amongst the most important organizational subjects. Indeed, since IT has become an important resource... more
Business/IT strategic alignment has been discussed as a key subject for managers for a long time. This is while IT governance is also amongst the most important organizational subjects. Indeed, since IT has become an important resource for organizations, the governance of this resource is an essential subject that the organizations must go through. Combination of IT strategic alignment with
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The key policy challenge for Turkey in the years ahead will be to enhance and consolidate the advances made since the nation's 2000-2001 economic crisis. Higher growth could reduce unemployment and raise living standards toward... more
The key policy challenge for Turkey in the years ahead will be to enhance and consolidate the advances made since the nation's 2000-2001 economic crisis. Higher growth could reduce unemployment and raise living standards toward European Union levels. This paper reviews Turkey's ...