Research ArticleOpen accessIn the abstractBy-pass Devices as Effective Means of Protection from the Hydraulic HammerKhalid S. Al-RababaSwitching-off the parallel working pump units causes sudden discharge changes in parallel pipe lines, as a result of that hydraulic shocks takes place. The damping of these shocks can be achieved by the installation of the by-pass devices between the parallel lines of the piping system. The analytical calculations demonstrate that the reduction in hydraulic shocks reaches 40% and considerable … …American Journal of Applied Sciences, Vol. 2, Issue 2 · 28 Feb 2005 · 6,912 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Conceptual Design of the Concurrent Engineering Design System for Polymeric-Based Composite Automotive PedalsS. M. SapuanIn this study, a study of conceptual design for the polymeric-based composite automotive pedal box system is presented. This study describes the importance of the concurrent engineering technique in the total design activity. Several idea generation methods like the extension of the search space, the morphological chart, the exploitation of experiences, the gallery method and the voice of customer had … …American Journal of Applied Sciences, Vol. 2, Issue 2 · 28 Feb 2005 · 7,727 accessesView PDFCite
Research ArticleOpen accessIn the abstractSocial-economic and Ecological Criteria of Noise ControlM. A. Al-NawaflehWhen designing new and/or modifying pre-existing equipment, the problem of economic feasibility is always of prime importance . However, the economic feasibility is often a matter of discussion in various social aspect. To operate no aesthetic, noisy, dusty, gazed heavy machine with large number of visually fixed moving parts and gearing, it is often dangerous and even risky. The work … …American Journal of Applied Sciences, Vol. 2, Issue 2 · 28 Feb 2005 · 6,676 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Analysis of the Output and Employment Conversion Matrices of Australia's EconomyAbbas Valadkhani, Tim RobinsonBased on two snapshots taken from the Australian economy, this study quantifies the impacts of final demand aggregates on output and employment in various sectors using the 1989 and 1997 conversion matrices. The sectoral output and employment are linked with final demand deliveries in such a way that one can measure the impacts on changes in each component of aggregate … …American Journal of Applied Sciences, Vol. 2, Issue 2 · 28 Feb 2005 · 6,750 accessesView PDFCite
Research ArticleOpen accessIn the abstractRetail Banking Loan Portfolio Equilibrium Mix : A Markov Chain Model AnalysisV. Thyagarajan, Saiful Maznan Bin MohamedThe variance analysis of actual loan sanctions with the non-documented method of loan allocation of the selected retail bank, over a period of 24 months, revealed that there is a scope to improve their income earnings. Realizing its importance Markov Chain Market Share model was applied to inter temporal data of loan disbursements of the selected bank. By applying Estimate … …American Journal of Applied Sciences, Vol. 2, Issue 1 · 31 Jan 2005 · 7,576 accessesView PDFCite
Research ArticleOpen accessIn the abstractConsidering Environmental Externalities in Technology Selection: the Case of Urban Buses for AthensDimitrios A. GeorgakellosThe present study proposes a procedure for considering the environmental externalities in technology selection decision-making, based on the outcome of Life Cycle Assessments. Currently, even if there are several methods available for technology selection and purchasing, almost all of them seem to ignore the external cost associated with the candidates. The main features of the proposed model are its simplicity … …American Journal of Applied Sciences, Vol. 2, Issue 1 · 31 Jan 2005 · 7,002 accessesView PDFCite
Research ArticleOpen accessIn the abstractIndustrial-academic Co-operation of Technical University and Automobile Industry in TaiwanS. C. Tzeng, J. P. Yeh, W. P. MaThis study discusses a successful case of industrial-academic cooperation involving the technical university and the Ford Motor Company in Taiwan. The cooperation involved the exchange technical skills via industry-academic cooperation. Both sides have been cooperating since 1991. This study describes the process of how the cooperation was initiated with a small project, the interactions between the two parties and the … …American Journal of Applied Sciences, Vol. 2, Issue 1 · 31 Jan 2005 · 6,845 accessesView PDFCite
Research ArticleOpen accessIn the abstractPotential of Rice Husk and Rice Husk Ash for Phenol Removal in Aqueous SystemsA. H. Mahvi, A. Maleki, A. EslamiThe potential of rice husk and rice husk ash for phenol adsorption from aqueous solution was studied. Batch kinetics and isotherm studies were carried out under varying experimental conditions of contact time, phenol concentration, adsorbent dose and pH. Adsorption equilibrium of rice husk and rice husk ash was reached within 6 hours for phenolic concentration 150-500 μg/L and 3 hours … …American Journal of Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2004 · 10,171 accessesView PDFCite
Research ArticleOpen accessIn the abstractReal Time Hybrid Controller Implementation for Switched Reluctance Motor DriveS. Paramasivam, R. ArumugamThis study presents the real time hybrid controller implementation for a Switched Reluctance motor Drive. The developed hybrid control law consists of Proportional Integral (PI) controller at steady state, PI-type fuzzy logic controller (FLC) at transient state and a simple logic controller between steady and transient states to achieve desired performance at various operating conditions under soft chopping operation. The … …American Journal of Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2004 · 7,240 accessesView PDFCite
Research ArticleOpen accessIn the abstractLinks between Dynamic Physical Systems and Operator Theory Issues Concerning Energy Balances and StabilityM. D.L. SenThis study relates the properties of operators with the well- known concepts of positive realness and passivity properties in dynamic systems and their associate transfer functions. Those concepts together with very close related ones are first examined from a physical point of view. Then, they are related to hyper-stability and properties of transfer functions while the hyper-stability theorem is revisited … …American Journal of Applied Sciences, Vol. 1, Issue 3 · 30 Sep 2004 · 6,826 accessesView PDFCite