Author
Masood Khan
Other affiliations: University of Cambridge, Hazara University, Agricultural & Applied Economics Association ...read more
Bio: Masood Khan is an academic researcher from Quaid-i-Azam University. The author has contributed to research in topics: Heat transfer & Nanofluid. The author has an hindex of 48, co-authored 296 publications receiving 8026 citations. Previous affiliations of Masood Khan include University of Cambridge & Hazara University.
Papers published on a yearly basis
Papers
More filters
••
TL;DR: This paper illustrates the application of the multi-variate statistical techniques in two different studies that shared the common purpose of identifying types of farming systems in their respective study areas by building representative mathematical programming models for Chile and Pakistan.
339 citations
••
TL;DR: In this paper, a steady unidirectional flow of an Oldroyd 8-constant magnetohydrodynamic (MHD) fluid in bounded domains is analyzed using homotopy analysis method (HAM).
Abstract: This paper deals with some steady unidirectional flows of an Oldroyd 8-constant magnetohydrodynamic (MHD) fluid in bounded domains. The fluid is electrically conducting in the presence of a uniform magnetic field. Three nonlinear flows are produced by the motion of a boundary or by sudden application of a constant pressure gradient or by the motion of a boundary and pressure gradient. The governing nonlinear differential equations are solved analytically using homotopy analysis method (HAM). Expressions for the velocity distribution are given. It is noted that for steady flow the solutions are strongly dependent on the non–Newtonian and magnetic parameters. The MHD solutions for a Newtonian fluid, as well as those corresponding to the Oldroyd 3 and 6-constant fluids, a Maxwell fluid and a second grade one, appear as limiting cases of our solutions. Finally, a physical interpretation of the results is given with the help of several graphs.
233 citations
••
TL;DR: In this article, the homotopy analysis method (HAM) was used to construct the solutions for Couette, Poiseuille and generalized Couette flows for all values of non-Newtonian parameters.
191 citations
••
TL;DR: In this article, a modified model of second-grade fluid that has shear-dependent viscosity and can predict the normal stress difference is used, and the differential equations governing the flow are solved using homotopy analysis method.
Abstract: The flow of a second-grade fluid past a porous plate subject to either suction or blowing at the plate has been studied. A modified model of second-grade fluid that has shear-dependent viscosity and can predict the normal stress difference is used. The differential equations governing the flow are solved using homotopy analysis method (HAM). Expressions for the velocity have been constructed and discussed with the help of graphs. Analysis of the obtained results showed that the flow is appreciably influenced by the material and normal stress coefficient. Several results of interest are deduced as the particular cases of the presented analysis.
176 citations
••
TL;DR: In this paper, the effect of Humic acid derived from lignite on growth and macronutrient uptake of wheat (Triticum aestivum L.) grown in earthen pots under greenhouse conditions was examined.
162 citations
Cited by
More filters
••
TL;DR: There is growing scientific evidence supporting the use of biostimulants as agricultural inputs on diverse plant species, such as increased root growth, enhanced nutrient uptake, and stress tolerance.
Abstract: Plant biostimulants are diverse substances and microorganisms used to enhance plant growth. The global market for biostimulants is projected to increase 12 % per year and reach over $2,200 million by 2018. Despite the growing use of biostimulants in agriculture, many in the scientific community consider biostimulants to be lacking peer-reviewed scientific evaluation. This article describes the emerging definitions of biostimulants and reviews the literature on five categories of biostimulants: i. microbial inoculants, ii. humic acids, iii. fulvic acids, iv. protein hydrolysates and amino acids, and v. seaweed extracts. The large number of publications cited for each category of biostimulants demonstrates that there is growing scientific evidence supporting the use of biostimulants as agricultural inputs on diverse plant species. The cited literature also reveals some commonalities in plant responses to different biostimulants, such as increased root growth, enhanced nutrient uptake, and stress tolerance.
1,305 citations
••
TL;DR: Recent advances in understanding of cisplatin nephrotoxicity are summarized and it is discussed how these advances might lead to more effective prevention.
Abstract: Cisplatin is a widely used and highly effective cancer chemotherapeutic agent. One of the limiting side effects of cisplatin use is nephrotoxicity. Research over the past 10 years has uncovered many of the cellular mechanisms which underlie cisplatin-induced renal cell death. It has also become apparent that inflammation provoked by injury to renal epithelial cells serves to amplify kidney injury and dysfunction in vivo. This review summarizes recent advances in our understanding of cisplatin nephrotoxicity and discusses how these advances might lead to more effective prevention.
1,265 citations
••
TL;DR: In this article, the basic ideas and current developments of the homotopy analysis method, an analytic approach to get convergent series solutions of strongly nonlinear problems, which recently attracts interests of more and more researchers, are described.
835 citations
••
TL;DR: The discovery that the symptoms in Parkinson's disease are the consequence of a decrease in the concentration of the neurotransmitter dopamine in the basal ganglia, and that an improvement can be achieved by a dopamine precursor that passes through the blood-brain barrier, has helped to shape the opinion that many neurological and psychiatric diseases can be explained as defects in neurotransmitter systems.
Abstract: A characteristic of nerve cells is their ability to propagate an action potential and to communicate through specialized contact zones, called synapses. Synapses have received much attention from neurobiologists over the last 40 years, after their existence was ascertained by electron microscopy (De Robertis and Bennett 1954; Palade and Palay 1954). At the synapse, information is transferred from one cell to the contiguous one by neurotransmitters, viz. acetylcholine, biogenic amines and amino acids, or neuromodulators. These are mostly small peptides acting either alone or in combination (Furness et al. 1988; H6kfelt 1992). Thus, nerve cells communicate mostly by the intermediary of chemical signals. These important concepts have had a tremendous impact on the \"Zeitgeist\" of the neurosciences and have led many scientists to try to unravel the exact mechanisms of synaptic transmission. Furthermore, the discovery that the symptoms in Parkinson's disease are the consequence of a decrease in the concentration of the neurotransmitter dopamine in the basal ganglia, and that an improvement can be achieved by a dopamine precursor that passes through the blood-brain barrier (Hornykiewicz 1966), has helped to shape the opinion that many neurological and psychiatric diseases can be explained as defects in neurotransmitter systems. In the meantime, major efforts have been directed at understanding the way in which neurotransmitters
681 citations