University of Engineering and Technology Lahore
Lahore, Pakistan

The University of Engineering and Technology, Lahore, , is a public research university located in Lahore, Punjab, Pakistan. The university is noted as being highly selective in terms of admissions as around 1800 students, out of 42500 applicants, were selected in 2013 for undergrad studies.Established in 1921, it is one of the best institutions of higher learning in the country and ranks among one of the top ten universities in "engineering technology category" by HEC. In addition, the university continuously secures its ranking amongst top 300 Asian institutions of science and technology by QS World University Rankings. The university also conducts Engineering College Admission Test every year in the province of Punjab. The university is also a member of the Association of Commonwealth Universities.The university offers academic programmes in undergraduate, post-graduate, and doctoral studies in the disciplines of engineering, business management, law, philosophy, natural and social science The university is organized in 7 science faculties with administration of 24 research departments Since its establishment, country's most notable scholars and academicians have been affiliated with UET. Wikipedia.

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Joya K.S.,Leiden University | Joya K.S.,Max Planck Institute for Chemical Energy Conversion | Joya K.S.,University of Engineering and Technology Lahore | Joya Y.F.,Ghulam Ishaq Khan Institute of Engineering Sciences and Technology | And 2 more authors.
Angewandte Chemie - International Edition | Year: 2013

The development of new energy materials that can be utilized to make renewable and clean fuels from abundant and easily accessible resources is among the most challenging and demanding tasks in science today. Solar-powered catalytic water-splitting processes can be exploited as a source of electrons and protons to make clean renewable fuels, such as hydrogen, and in the sequestration of CO2 and its conversion into low-carbon energy carriers. Recently, there have been tremendous efforts to build up a stand-alone solar-to-fuel conversion device, the "artificial leaf", using light and water as raw materials. An overview of the recent progress in electrochemical and photo-electrocatalytic water splitting devices is presented, using both molecular water oxidation complexes (WOCs) and nano-structured assemblies to develop an artificial photosynthetic system. Turning a new leaf: Electrochemical and light-driven electrocatalytic water oxidation assemblies have been targeted to develop artificial photosynthetic system. Such "Artificial Leaves" are used to make H2 and O2 using water as a raw material. The design and performance of the water oxidation systems and standalone solar-to-fuel conversion devices are presented. Progress in the field and future perspectives of water splitting are also discussed. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Malik S.N.,University of Engineering and Technology Lahore | Sukhera O.R.,Descon Engineering Ltd
Renewable and Sustainable Energy Reviews | Year: 2012

Energy usage in Pakistan has increased rapidly in past few years due to increase in economic growth. Inadequate and inconsistent supply of energy has created pressure on the industrial and commercial sectors of Pakistan and has also affected environment. Demand has already exceeded supply and load shedding has become common phenomenon. Due to excessive consumption of energy resources it would become difficult to meet future energy demands. This necessitates proper management of existing and exploration of new energy resources. Energy resource management is highly dependent on the supply and demand pattern. This paper highlights the future demands, production and supply of energy produced from natural gas based on economic and environmental constraints in Pakistan with special emphasis on management of natural gas. An attempt has been made by proposing a suitable course of action to meet the rising gas demand. A mechanism has been proposed to evaluate Pakistan's future gas demand through quantitative analysis of base, worst and best/chosen option. CO 2 emission for all cases has also been evaluated. The potential, constraints and possible solutions to develop alternative renewable energy resources in the country have also been discussed. This work will be fruitful for the decision makers responsible for energy planning of the country. This work is not only helpful for Pakistan but is equally important to other developing countries to manage their energy resources. © 2011 Elsevier Ltd. All rights reserved.

Joya K.S.,Leiden University | Joya K.S.,University of Engineering and Technology Lahore | Subbaiyan N.K.,University of North Texas | D'Souza F.,University of North Texas | De Groot H.J.M.,Leiden University
Angewandte Chemie - International Edition | Year: 2012

Water into oxygen: Mono-iridium complexes (see picture; L=PO 3H2 or COOH) were immobilized on an indium tin oxide (ITO) surface to form a molecular electrocatalytic water oxidation assembly that mimics photosystem II in producing molecular oxygen with high turnover numbers (TONs). The catalyst shows TONs for O2 higher than 210 000 and turnover frequencies higher than 6.7 s-1 during electrochemical catalytic water splitting. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Siddique A.B.,University of Management and Technology | Tahir M.,University of Engineering and Technology Lahore
IEEE Transactions on Wireless Communications | Year: 2013

LED based lighting systems provide an opportunity for data transmission in addition to their traditional use as source of illumination. Brightness control is required to achieve either desired level of illumination or to achieve energy conservation. Conventionally, simultaneous data transmission as well as brightness control is achieved using two different modulation schemes. Either pulse width modulation or pulse amplitude modulation is used for brightness control and some variants of pulse position modulation are employed for data transmission. The need for two different modulation schemes, to meet the dual objective, makes the system design complex. In this paper we propose variable-rate multi-pulse-position-modulation (VR-MPPM), for LED based visible light communication system, to achieve joint brightness control and data transmission. The proposed approach eradicates the need for either pulse width modulation or pulse amplitude modulation and still achieves the brightness control. Encoder and decoder algorithms for VR-MPPM realization are developed and are implemented on the hardware testbed. Experimental results revealing the effect of brightness level variation on symbol error rate are also provided. Existence of an underlying trade-off between achievable resolution for brightness control and the corresponding successful data transmission rate is recognized. To exploit this trade-off, an optimization problem is formulated. © 2013 IEEE.

Nadeem O.,University of Engineering and Technology Lahore | Fischer T.B.,University of Liverpool
Environmental Impact Assessment Review | Year: 2011

Evaluating the effectiveness of public participation in EIA related decisions is of crucial importance for developing a better understanding of overall EIA effectiveness. This paper aims to contribute to the professional debate by establishing a country specific evaluation framework for Pakistan, which, it is suggested, could also potentially be used in other developing countries. The framework is used to evaluate performance of public participation in EIA in terms of 40 attributes for four selected projects from the province of Punjab. The evaluation is based on interviews with stakeholders, review of EIA reports as well as public hearing proceedings and environmental approval conditions. The evaluation of the selected projects revealed an overall weak influence of public participation on substantive quality of EIA and on the final decision. Overall, EIA public participation has succeeded in providing a more egalitarian environment. Furthermore, it appears fair to say that sufficient time for submitting written comments on EIA reports as well as for raising concerns during public hearings had been given. Also, public consultation was significantly contributing to educating participants. Despite some impediments, it is argued that public participation in EIA is gradually gaining ground in Pakistan. Recommendations to enhance EIA public participation effectiveness in Pakistan include applying a more proactive approach which should take place before EIA is conducted and before site selection for development projects is happening. © 2010 Elsevier Inc.

Shah G.A.,University of Engineering and Technology Lahore | Gungor V.C.,Bahcesehir University | Akan O.B.,Koç University
IEEE Transactions on Industrial Informatics | Year: 2013

Electromagnetic interference, equipment noise, multi-path effects and obstructions in harsh smart grid environments make the quality-of-service (QoS) communication a challenging task for WSN-based smart grid applications. To address these challenges, a cognitive communication based cross-layer framework has been proposed. The proposed framework exploits the emerging cognitive radio technology to mitigate the noisy and congested spectrum bands, yielding reliable and high capacity links for wireless communication in smart grids. To meet the QoS requirements of diverse smart grid applications, it differentiates the traffic flows into different priority classes according to their QoS needs and maintains three dimensional service queues attributing delay, bandwidth and reliability of data. The problem is formulated as a Lyapunov drift optimization with the objective of maximizing the weighted service of the traffic flows belonging to different classes. A suboptimal distributed control algorithm (DCA) is presented to efficiently support QoS through channel control, flow control, scheduling and routing decisions. In particular, the contributions of this paper are three folds; employing dynamic spectrum access to mitigate with the channel impairments, defining multi-attribute priority classes and designing a distributed control algorithm for data delivery that maximizes the network utility under QoS constraints. Performance evaluations in ns-2 reveal that the proposed framework achieves required QoS communication in smart grid. © 2005-2012 IEEE.

Iqbal M.,University of Engineering and Technology Lahore
Journal of Plasma Physics | Year: 2014

The relaxation of an electron-depleted electronegative dusty plasma with two-negative ions is investigated. When the ratio of canonical vorticities to corresponding flows of all the plasma species is the same and all inertial and non-inertial forces are present, the relaxed state appears as a double Beltrami magnetic field which is the superposition of two force-free relaxed states. The numerical results show that highly diamagnetic relaxed magnetic fields can be obtained by controlling the flow and vorticities through a single Beltrami parameter. The study is useful to investigate the creation of diamagnetic plasma configurations which are considered to be very important in the context of nuclear fusion. Copyright © 2013 Cambridge University Press.

Amin K.M.,University of Engineering and Technology Lahore | Mufti N.A.,University of Engineering and Technology Lahore
Journal of Materials Processing Technology | Year: 2012

Cooling curves were obtained to estimate solidification parameters of a squeeze cast Al-4%Cu alloy under different processing conditions, while microstructural analysis was carried out to investigate grain morphology obtained for the different test runs. The results indicated not only an increase in cooling curve gradient with increase in pressure, but also a change in cooling curve profile with changes in superheat and die temperature. Solidification range was also affected with an increase in liquidus when superheat was high while solidification rate was decreased when superheat was low and die temperature was increased. Microstructure showed refinement, dendritic growth formation and a suppression of both precipitated phase as well as micro-segregation with an increase in cooling rate due to application of pressure. The investigation is expected to provide important insight into the solidification behavior under pressure of an Al-4%Cu alloy that can be used to evaluate its casting feasibility as well as give basic input information for simulation purposes. © 2012 Elsevier B.V. All rights reserved.

Ahmad S.,University of Engineering and Technology Lahore
Chemistry and Biodiversity | Year: 2010

Platinum-based compounds are widely used as chemotherapeutics for the treatment of a variety of cancers. The anticancer activity of cisplatin and other platinum drugs is believed to arise from their interaction with DNA. Several cellular pathways are activated in response to this interaction, which include recognition by high-mobility group and repair proteins, translesion synthesis by polymerases, and induction of apoptosis. The apoptotic process is regulated by activation of caspases, p53 gene, and several proapoptotic and antiapoptotic proteins. Such cellular processing eventually leads to an inhibition of the replication or transcription machinery of the cell. Deactivation of platinum drugs by thiols, increased nucleotide excision repair of Pt-DNA adducts, decreased mismatch repair, and defective apoptosis result in resistance to platinum therapy. The differences in cytotoxicity of various platinum complexes are attributed to the differential recognition of their adducts by cellular proteins. Cisplatin and oxaliplatin both produce mainly 1,2-GG intrastrand cross-links as major adducts, but oxaliplatin is found to be more active particularly against cisplatin-resistant tumor cells. Mismatch repair and replicative bypass appear to be the processes most likely involved in differentiating the molecular responses to these two agents. This review describes the formation of Pt-DNA adducts, their interaction with cellular components, and biological effects of this interaction. © 2010 Verlag Helvetica Chimica Acta AG.

Shahid E.M.,University of Engineering and Technology Lahore | Jamal Y.,University of Engineering and Technology Lahore
Renewable and Sustainable Energy Reviews | Year: 2011

The energy crises, particularly the fear of depletion of mineral oils are becoming a very serious issue. Non-oil producing countries are becoming the victim of the scenario. On the other hand the environmental pollution, green house effect, global warming and acid rain are also threatening the life. Biodiesel is a promising alternative fuel which can cater the problems. Vegetable oils can be used to substitute mineral diesel after reducing their viscosity and specific gravity. For this purpose different techniques are used. Among these, transesterification is frequently used as it is the most reliable, most feasible, and can be used to produce biodiesel easily. The conversion efficiency of biodiesel via transesterification depends upon the nature of feedstock, amount and type of alcohol and catalyst, operating temperature, and reaction time. In this study the performance of alkaline, acidic, and enzymatic catalysts have been reviewed. Modern techniques of development of biodiesel i.e., use of microwaves and super critical alcohol have also been discussed critically. © 2011 Elsevier Ltd. All rights reserved.

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