Institution
Ghulam Ishaq Khan Institute of Engineering Sciences and Technology
Education•Topi, Pakistan•
About: Ghulam Ishaq Khan Institute of Engineering Sciences and Technology is a education organization based out in Topi, Pakistan. It is known for research contribution in the topics: Quantum efficiency & Diode. The organization has 618 authors who have published 940 publications receiving 10674 citations.
Papers published on a yearly basis
Papers
More filters
••
TL;DR: In this article, the authors presented the design, fabrication and experimental results of carbon nanotubes (CNTs) based strain sensors, which were fabricated by pressed CNTs tablets and elastic polymer beam.
39 citations
••
TL;DR: In this paper, the commercial active brazing alloy "Incusil-ABA" was used for the bonding of diamond grits in order to assess their suitability for high performance machining tools.
38 citations
••
TL;DR: In this article, electron beam welding was used to weld Ti-5Al-2.5Sn alloy sheet with welding current ranging from 14-mA to 20-mA, and the welding current had a significant influence on the weld pool width, micro-hardness and grain size in the fusion zone.
38 citations
••
TL;DR: The present study aims to design a chaotic-advection-based passive micromixer with enhanced mixing efficiency by designing a serpentine-shaped microchannel with sinusoidal side walls and increasing the A/λ ratio.
Abstract: Sample mixing is difficult in microfluidic devices because of laminar flow. Micromixers are designed to ensure the optimal use of miniaturized devices. The present study aims to design a chaotic-advection-based passive micromixer with enhanced mixing efficiency. A serpentine-shaped microchannel with sinusoidal side walls was designed, and three cases, with amplitude to wavelength (A/λ) ratios of 0.1, 0.15, and 0.2 were investigated. Numerical simulations were conducted using the Navier–Stokes equations, to determine the flow field. The flow was then coupled with the convection–diffusion equation to obtain the species concentration distribution. The mixing performance of sinusoidal walled channels was compared with that of a simple serpentine channel for Reynolds numbers ranging from 0.1 to 50. Secondary flows were observed at high Reynolds numbers that mixed the fluid streams. These flows were dominant in the proposed sinusoidal walled channels, thereby showing better mixing performance than the simple serpentine channel at similar or less mixing cost. Higher mixing efficiency was obtained by increasing the A/λ ratio.
38 citations
••
TL;DR: In this paper, the fabrication of ternary system mixed matrix membranes based on polyvinyl acetate (PVAc) incorporated reduced graphene oxide (rGO) and CuO or Ag2O nanoparticles as filler in different weight ratios via non-solvent induced phase inversion separation method.
Abstract: Herein we report the fabrication of ternary system mixed matrix membranes based on polyvinyl acetate (PVAc) incorporated reduced graphene oxide (rGO) and CuO or Ag2O nanoparticles as filler in different weight ratios via non-solvent induced phase inversion separation method. The fabricated membranes were characterized for chemical composition porosity, pore distribution, surface roughness, thickness, water contact angle and mechanical strength. Scanning electron microscopy and atomic force microscopy analyses revealed that pure PVAc exhibited smooth and uniform surface while PVAc/rGO/Ag2O and PVAc/rGO/ACuO membranes possessed rough and uneven topography and higher surface porosity. PVAc/rGO/CuO and PVAc/rGo/Ag2O membranes exhibited total permeate flux of 1.60 × 10–2 g/m2 s and 1.28 × 10–2 g/m2 s corresponding to net removal of 99.9% and 98.0% respectively from model wastewater of Cr6+ under the optimized experimental conditions. Interestingly, under these optimized conditions, PVAc/rGO/CuO membrane achieved Cr6+ removal of 99.9% from anti-corrosive paint industrial wastewater (as real sample) with a flux of 1.90 × 10-2 g/m2 s, which was much higher than many state of the art membranes. The uptake of Cr6+ from real solution was confirmed by EDX and AFM analysis of the post-separation membrane. The newly designed PVAc/rGO/CuO membrane, attributed to cost-effectiveness, environmental greenness, ease of syntheisis and high efficiency, can be envisioned of potential applications for the remediation of Cr6+ and other similar pollutants from real industrial wastewater.
38 citations
Authors
Showing all 626 results
Name | H-index | Papers | Citations |
---|---|---|---|
Wajid Ali Khan | 128 | 1272 | 79308 |
Shuichi Miyazaki | 69 | 455 | 18513 |
Muhammad Zubair | 51 | 806 | 10265 |
Mohammad Islam | 44 | 192 | 9721 |
Asifullah Khan | 38 | 192 | 5109 |
Muhammad Waqas | 32 | 383 | 7336 |
Rana Abdul Shakoor | 30 | 140 | 3244 |
Noor Muhammad | 29 | 160 | 2656 |
Abdul Majid | 28 | 231 | 3134 |
Muhammad Abid | 27 | 377 | 3214 |
Iftikhar Ahmad | 26 | 143 | 2500 |
Shaheen Fatima | 24 | 79 | 2287 |
Ghulam Hussain | 24 | 127 | 1937 |
Zubair Ahmad | 24 | 145 | 1899 |
Muhammad Zahir Iqbal | 23 | 129 | 1624 |