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Mahar F.,Iqra University | Ali S.A.,Iqra University | Hussain A.,Korea University | Bhutto Z.,Mehran UET
International Conference on Control, Automation and Systems | Year: 2011

Thus far, researchers test several heuristic in order to produce the optimal solutions of the cost function and controller parameters. In this paper, an implementation of the Ant Colony Optimization (ACO) algorithm for the optimization of cost function and controller parameters has been discussed. To implement the ACO algorithm with a problem requires defining; cost function and the constraint. All simulation has been performed using a software program developed in the MATLAB environment. The simulation results show that ACO algorithm can be used to counterbalance the effect and improve the performance of any control system. Moreover, the proposed scheme overcomes the weaknesses of conventional fixed gain controller and improvement is accomplished in terms of settling time, oscillations and overshoot. © 2011 ICROS.


Korai M.S.,Institute of Environmental Engineering & Management | Mahar R.B.,Us Pakistan Center For Advance Studies In Water Us Pacasw | Uqaili M.A.,Mehran UET
Energy Conversion and Management | Year: 2016

Improper disposal of municipal solid waste (MSW) has created many environmental problems in Pakistan and the country is facing energy shortages as well. The present study evaluates the biochemical and thermochemical treatment options of MSW in order to address both the endemic environmental challenges and in part the energy shortage. According to the nature of waste components, a number of scenarios were developed to optimize the waste to energy (WTE) routes. The evaluation of treatment options has been performed by mathematical equations using the special characteristics of MSW. The power generation potential (PGP) of biochemical (anaerobic digestion) has been observed in the range of 5.9–11.3 kW/ton day under various scenarios. The PGP of Refuse Derived Fuel (RDF), Mass Burn Incinerator (MBI), Gasification/Pyrolysis (Gasi./Pyro.) and Plasma Arc Gasification (PAG) have been found to be in the range of 2.7–118.6 kW/ton day, 3.8–164.7 kW/ton day, 4.2–184.5 kW/ton day and 5.2–224 kW/ton day, respectively. The highest values of biochemical and all thermochemical technologies have been obtained through the use of scenarios including the putrescible components (PCs) of MSW such as food and yard wastes, and the non-biodegradable components (NBCs) of MSW such as plastic, rubber, leather, textile and wood respectively. Therefore, routes which include these components are the optimized WTE routes for maximum PGP by biochemical and thermochemical treatments of MSW. The findings of study lead to recommend that socio-economic and environmental feasibility of WTE conversion technologies should be performed in the context of the country. © 2016 Elsevier Ltd


Memon R.A.,Mehran UET | Khaskheli G.B.,Mehran UET | Dahani M.A.,National Highway Authority
International Journal of Civil Engineering | Year: 2012

Present study is an extension of earlier work carried out on two-lane two way roads in the two provinces of Pakistan i.e. N-25, N-55 and N-5 regarding the measure of operating speed and development of operating speed prediction models. Curved sections of two-lane rural highways are the main location of run-off road accidents. In addition to that the road alignment having combination of geometric elements may be more harmful to the drivers than the successive features with adequate separation. This study is carried out on two-lane two-way road along N-65 (from Sibi to Quetta). Three sections are selected for study with thirty three horizontal curves. Continuous speed profile data was recorded with the help of VBox (GPS based device) which was attached with a vehicle to detect vehicle position through satellite signals. VBox is new equipment with modern technology in this field and it helps in recording continuous speed profile and saving of this information on the computer as a permanent record. Through the regression analysis, models were developed for estimation of operating speed on horizontal curves and on tangent, and estimation of maximum speed reduction from tangent to curve. The validation of developed model shows compatibility with the experimental data.


Ashraf A.,Mehran UET | Baloch A.K.,FEECE | Chowdhry B.S.,Research Faculty | Khan N.,IICT | And 2 more authors.
2010 International Conference on Information and Emerging Technologies, ICIET 2010 | Year: 2010

The advancement in Tele-healthcare and communication technologies, in last decade, has given rise to remote healthcare services. Today, existing Tele-healthcare approaches either extending services in limited zones as Private Area Network (PAN) or offering the limited healthcare services in wider areas using Mobile Medical Units (MMUs) & remote facilitation centers. Existing healthcare services face resource limitations and are difficult to extend during some dire emergencies. This situation gets worsened due to poor management of resources (in emergency areas) and lack of medical records in case of a traveller or a displaced patient (i.e. w/o medical or patient history). This paper elaborates on a novel Tele-healthcare infrastructure concept that takes into consideration the efficient management of resources in the vicinity of the patient by auto-generating an emergency signals. Our proposed technique enforces to acquire smart procedures to arrange maximum available healthcare assistances to form an ad hoc medical team near by the deceased. In addition to this, a global scope of Tele-healthcare infrastructure is achieved by globalizing the patient's ID, which makes it highly scalable and efficient to initiate treatment immediately of an individual even during a large scale disaster with available primary healthcare information. ©2010 IEEE.


Memon A.H.,University of Sindh | Qamar S.D.,National Transmission and Dispatch Company | Waseer T.A.,Mehran UET | Baloch S.,Mehran UET | Chowdhry B.S.,Mehran UET
International Journal of Oceans and Oceanography | Year: 2012

Our this piece of work is as a matter of fact meant for getting over the stern crises in Pakistan. In our this effort we tried to have a go at holding forth Tidal energy extraction in Pakistan that is not only feasible but as well as practicable by all means but on account of being not fitted out with sufficient equipment and budget it is away from our depth to go for any practical implementation of this plant. Hence we had to resign ourselves to expatiating only its control engineering. If the implementation was ever carried into effect by government it would at least go a short way in relieving our country of this extreme dearth of power that it has been a victim of for so long. © Research India Publications.

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