Ghulam Ishaq Khan Institute of Engineering Sciences and Technology

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.

Returns to Interest-free Microcredit: Evidence from a Randomised Experiment in Pakistan

Abstract: The existing experimental evidence on returns to capital is based on randomisation of either interest-bearing loans or grants. This paper reports on a field experiment conducted in Pakistan in whic...

Analysing connectivity patterns and centrality metrics for opportunistic networks

Abstract: Network centrality measures are used to identify important and influential nodes in any network. Several centrality measures are proposed in literature for static networks however these measures cannot be used for routing purpose in opportunistic networks as opportunistic networks are dynamic in nature. Opportunistic networks utilise pocket switching for routing messages where each device attempts to forward its messages to a suitable next node. Appropriate decision making for the selection of the forwarder node is crucial for the performance of a routing protocol in opportunistic networks. In any opportunistic network, some node play more important role in the routing process than the rest of the network. In this paper, we have analysed metrics that can be used to simplify the centrality measure computation in opportunistic networks. We have investigated the relationship between these node (ego) characteristics with centrality measures that are computed using novel network transformations. The aim of the transform mechanisms is to aggregate the link between any two nodes in a way that strongly relates the nodes which frequently come in contact with each other. Our experiment show that ego characteristics can be used to estimate centrality measures for dense opportunistic networks.

Allowed Gamow-Teller strength distributions and stellar electron capture rates on odd-A nuclei

Abstract: The allowed Gamow-Teller (GT) strength distributions and associated weak interaction rates on fp-shell nuclei play crucial role in several astrophysical processes, particularly in nucleosynthesis, ...

Reduction in efficiency droop/decline of green GaN-based light-emitting diodes by employing heterostructure cap layer

Abstract: In this study, we theoretically studied the enhancement of carrier injection by employing heterostructure layers before p-GaN in green light-emitting diodes. It is evident from the simulation results that improved carrier injection results in high internal quantum efficiency and light output power in the structures using heterostructures on the p-side. In comparison to conventional structure, reduced efficiency droop is observed suggesting promising high-performance green light-emitting diodes.