Punjab, Pakistan
Punjab, Pakistan

The University of Wah was established in 2005. Three and half years later, in July 2009 the Punjab provincial Assembly passed the University of Wah Act, 2009. The University is offering 4-years Bachelor and 2-years Master programs in Basic science, Social science, Management science and Engineering science. The University has two constituent colleges, Mashal and Wah Engineering College. The Wah Engineering College is offering B.Sc Engineering Program in the fields of Electrical Power, Mechanical,Chemical,Civil,Mechatronics, whereas, Mashal College is offering BS Programs in English and Education . Wikipedia.

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Zaman K.,University of Wah | Abd-el Moemen M.,King Saud University
Renewable and Sustainable Energy Reviews | Year: 2017

The objective of the study is to examine the dynamic linkages among electricity production from renewable sources, permanent cropland, high technology exports, health expenditures, and carbon dioxide (CO2) emissions in the panel of 14 selected Latin America and the Caribbean countries, over the period of 1980–2013. The study employed panel unit root test, panel cointegration, panel least square, panel fixed effect model, panel random effect model, and panel two stage least square (2SLS) instrumental variables technique for robust inferences. The results confirmed the long-run relationship between the variables. The panel results indicate the effectiveness of high-technology exports that decreases the CO2 emissions, while electricity production, permanent cropland and health expenditures increase CO2 emissions, which deteriorates the environment. The study concludes with the support of long-term sustainable policies, which is imperative for sound growth in a panel of countries. © 2017 Elsevier Ltd

Zaman K.,University of Wah | Moemen M.A.-E.,King Saud University
Renewable and Sustainable Energy Reviews | Year: 2017

Pursuit of excellence in economic development, in the midst of damaging the natural environment, is a shameless growth. The economic impacts on environmental degradation are quite visible in industrialized economies where human health is compromised by rapid economic growth and energy induced emissions. This study examines the interrelationship between energy consumption, economic growth and carbon dioxide (CO2) emissions under the six alternative and plausible hypothesis including Environmental Kuznets Curve (EKC), Pollution Haven Hypothesis (PHH), population based emissions (IPAT), energy led emissions, sectoral growth emissions and Emissions emancipated Human Development Index (eHDI) in the context of low and middle income countries, high income countries and in aggregated panel, over the period of 1975–2015. The results supported the EKC hypothesis, IPAT hypothesis, energy induced emissions, and sectoral growth emissions in different regions of the world, while PHH and eHDI hypothesis does not confirm across regions. This study exclusively determines the key socio-economic and environmental problems in a large pool of the world economies to understand the need of development policy agenda for sustainable growth. © 2017 Elsevier Ltd

Sadaf H.,University of Wah | Raza S.I.,University of Wah | Hassan S.W.,University of Wah
Microbial Pathogenesis | Year: 2017

Nephrolithiasis is a condition marked by the presence or formation of stones in kidneys. Several factors contribute to kidney stones development such as environmental conditions, type of dietary intake, gender and gastrointestinal flora. Most of the kidney stones are composed of calcium phosphate and calcium oxalate, which enter in to the body through diet. Both sources of oxalates become dangerous when normal flora of gastrointestinal tract is disturbed. Oxalobacter and Lactobacillus species exist symbiotically in the human gut and prevent stone formation by altering some biochemical pathways through production of specific enzymes which help in the degradation of oxalate salts. Both Oxalobacter and Lactobacillus have potential probiotic characteristics for the prevention of kidney stone formation and this avenue should be further explored. © 2017 Elsevier Ltd

This paper presents a systematic approach to develop a generalized symbolic/numerical dynamic algorithm for modeling and simulation of multibody systems with branches and wheels. The proposed dynamic algorithm includes the direct kinematic and inverse dynamic models of the wheeled systems with prismatic/revolute as well as actuated/passive degrees of freedom. Using the geometric configuration of the system through modified Denavit–Hartenberg convention, symbolic equations in general algorithmic form are developed for kinematic constraints associated with the wheel–ground contacts. The Newton–Euler equations are used to develop an algorithm for the inverse dynamic model of the multibody system. The complete algorithm is then used to solve the kinematics and dynamics of the system, and computes: (i) the kinematics of the external/internal passive degrees of freedom of the system, (ii) the Lagrange multipliers associated with the wheel–ground contacts, and (iii) the driving forces/torques of the actuated degrees of freedom. Some examples are solved with the help of the proposed algorithm, using MATLAB, to illustrate its implementation on different wheeled systems. These examples include a differential wheeled robot, a snake-like wheeled system, and a bicycle. © 2017 Springer Science+Business Media Dordrecht

Hussain S.,University of Wah | Munir W.,National University of Sciences and Technology
Proceedings of 2017 International Conference on Communication, Computing and Digital Systems, C-CODE 2017 | Year: 2017

This paper provides a detailed review of Ultra Wide Band (UWB) antennas designed for Body Area Network (BAN) applications, published during last five years. Design parameters namely substrate, size, feeder, bandwidth, design structure (geometry) and use of Artificial Magnetic Conductor (AMC) are discussed. Performance in term of gain, radiation pattern, Specific Absorption Rate (SAR) of antennas near human body are reviewed. © 2017 IEEE.

Bano A.,University of Wah | Bano A.,Quaid-i-Azam University | Muqarab R.,Quaid-i-Azam University
Plant Biology | Year: 2017

The research conducted including its rationale: Spodoptera litura is the major pest of tomato causing significant reduction in tomato yield. Application of Plant growth promoting rhizobacteria(PGPR) prevent use of chemical fertilizer and synthetic pesticides through enhancement of plant growth and yield and induction of systemic resistance. Present investigation is an attempt to evaluate the role of PGPR, Pseudomonas putida and Rothia sp. on the physiology and yield of tomato fruit infested with the S. litura. Central methods applied: The surface sterilized seeds of tomato were inoculated with 48 h culture of P. putida and Rothia sp. At 6–7 branching stage of the plant, the larvae of S. litura at 2nd in star was used to infect the tomato plant leaves. Key results: The S. litura infestation decreased dry weight of shoots and roots by 46% and 22%, and significant reduction was recorded in tomato fruit yield. The P. putida and Rothia sp. inoculations alleviated the adverse effects of insect infestation and resulted in 60% increase in plant biomass and 40% increase in yield over infested plants. Main conclusions including key points of discussion: PGPR: Defense appears to be mediated via increase in proline production, enhanced activities of antioxidant enzymes, stimulation in the activities of protease and polyphenol oxidases, increased contents of phenolics, protein and chlorophyll. The formulation of biopesticide involving PGPR comprise an environment friendly and sustainable approach to overcome insect infestation. © 2016 German Botanical Society and The Royal Botanical Society of the Netherlands

Zaman K.,University of Wah | Shamsuddin S.,King Saud University | Ahmad M.,Institute of Management Sciences
Environmental Science and Pollution Research | Year: 2017

Environmental sustainability agenda are generally compromised by energy, water, and food production resources, while in the recent waves of global financial crisis, it mediates to increase the intensity of air pollutants, which largely affected the less developing countries due to their ease of environmental regulation policies and lack of optimal utilization of economic resources. Sub-Saharan African (SSA) countries are no exception that majorly hit by the recent global financial crisis, which affected the country’s natural environment through the channel of unsustainable energy-water-food production. The study employed panel random effect model that addresses the country-specific time-invariant shocks to examine the non-linear relationship between water-energy-food resources and air pollutants in a panel of 19 selected SSA countries, for a period of 2000–2014. The results confirmed the carbon-fossil-methane environmental Kuznets curve (EKC) that turned into inverted U-shaped relationships in a panel of selected SSA countries. Food resources largely affected greenhouse gas (GHG), methane (CH4), and nitrous oxide (N2O) emissions while water resource decreases carbon dioxide (CO2), fossil fuel, and CH4 emissions in a region. Energy efficiency improves air quality indicators while industry value added increases CO2 emissions, fossil fuel energy, and GHG emissions. Global financial crisis increases the risk of climate change across countries. The study concludes that although SSA countries strive hard to take some “good” initiatives to reduce environmental degradation in a form of improved water and energy sources, however, due to lack of optimal utilization of food resources and global financial constraints, it leads to “the bad” and “the ugly” sustainability reforms in a region. © 2017 Springer-Verlag Berlin Heidelberg

Akhtar N.,Beihang University | Akhtar W.,University of Wah
International Journal of Energy Research | Year: 2015

Metal-air batteries are being envisioned as a clean and high energy fuel for the modern automotive industry. The lithium-air battery has been found most promising among the various practically applicable metal-air systems, that is, Al-air, Li-air, Mg-air, Fe-air, and Zn-air. The theoretical specific energy of the Li-air battery is ~12kWh/kg, excluding the oxygen mass. This is comparable with the energy density of gasoline, which is ~13kWh/kg. It has been hypothesized that the Li-air battery could supply an energy ~1.7kWh/kg after losses from over potentials to run a vehicle ~300miles on a single charge. During the first decade of this century, a fair amount of research has been conducted on Li-air battery system. Yet, Li-air batteries could not make an industrial breakthrough, and are still in the laboratory phase since their birth. In this article, we technically evaluated the recent developments, and the inferences have been analyzed from the practical/commercial point of view. The study concludes that low discharge rate, lower number of cycles, oxidation of lithium anode, discharge products at the cathode, and side reactions inside the battery are the key limiting factors in the slow progress of Li-air batteries on an industrial scale. The ongoing researches to overcome these hurdles have also been discussed. This analysis will help the reader to understand the current standing of the lithium-air battery technology. © 2014 John Wiley & Sons, Ltd.

Uzma G.,University of Wah
Chinese Physics B | Year: 2014

Since ferrites are highly sensitive to the additives present in or added to them, extensive work, to improve the properties of basic ferrites, has been carried out on these aspects. The present paper reports the effects of composition, frequency, and temperature on the dielectric behavior of a series of CuxZn1 - xFe2O4 ferrite samples prepared by the usual ceramic technique. In order to improve the properties of the samples, low cost Fe2O3 having 0.5 wt.% Si as an additive is selected to introduce into the system. The dielectric constant increases by increasing the Cu content, as the electron exchange of Cu 2+ <=> Cu+ is responsible for the conduction and the polarization. However, the addition of Si could decrease the dielectric constant as it suppresses the ceramic grain growth and promotes the quality factor at higher frequencies. Dielectric constant ε′ and loss tangent tan δ of the mixed Cu - Zn ferrite decrease with increasing frequency, attributed to the Maxwell - Wagner polarization, which increases as the temperature increases. © 2014 Chinese Physical Society and IOP Publishing Ltd.

Uzma G.,University of Wah
Indian Journal of Pure and Applied Physics | Year: 2015

Nickel-zinc ferrites of composition NixZn1-xFe2O4 (x=0.66, 0.77, 0.88, 0.99) were prepared by the usual ceramic technique. The dielectric properties have been studied as a function of composition and frequency. It is observed that the values of dielectric constant ∈′ and dielectric loss factor tanδ for samples prepared in the present work are much lower and of reduced price than those commercially obtained Ni-Zn ferrites. These low values are attributed to the presence of Si in Fe2O3 powder. It has been found that the ceramic grain growth was suppressed by Si, which results in a decrease in the dielectric constant and dielectric loss factor. The dielectric constant ∈′ and loss tangent tan δ also decrease as the frequency of applied ac electric field increases. © 2015, National Institute of Science Communication and Information Resources (NISCAIR). All rights reserved.

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