http://localhost:80/xmlui/handle/123456789/17347 Sat, 04 Apr 2026 00:51:59 GMT 2026-04-04T00:51:59Z http://localhost:80/xmlui/handle/123456789/18922 Title: DIFFUSION OF E GOVERNMENT SYSTEM IN PAKISTAN: ANALYSIS OF ADOPTION BY GOVERNMENT EMPLOYEES OF PAKISTAN Authors: J. RIAZ; M.T. NAWAZ; F. SHAKEEL; S.A. RAZA Sat, 10 Dec 2016 00:00:00 GMT http://localhost:80/xmlui/handle/123456789/18922 2016-12-10T00:00:00Z http://localhost:80/xmlui/handle/123456789/18918 Title: tomography as automatic diagnostic tool for electrical substations a review Authors: j. Amjid; M. Abrar Fri, 09 Dec 2016 00:00:00 GMT http://localhost:80/xmlui/handle/123456789/18918 2016-12-09T00:00:00Z http://localhost:80/xmlui/handle/123456789/18917 Title: Measuring Students' Learning and Task Performance Using Semantic Multi-Modal Aids in Virtual Assembly Environments Authors: Sehat Ullah Abstract: Learning and performance improvement during procedural task realization in Virtual Reality (VR) environments can be enhanced using different types of cognitive aids. Previous work in literature stressed on task learning (with performance drop) or vice versa. In this paper we propose the concept of semantic aids to be systematically used in virtual environments to increase user performance as well as learning, A Guided Virtual Reality Training System (GVRTS) is used for the assembly of three phase step-down transformer in the experimental study. Group 1 (20 students) used direct cognitive aids (change in color of object candidate for selection, blinking arrow showing final position, a color line bar under the object pointing to its accurate placement). Group2 (20 students) are trained with GVRTS where direct cognitive aids plus visual semantic aids are provided, group3 use direct plus audio semantic aids, and group4 (20 students) use direct aids plus audio and visual semantic aids. A comparison based on task performance, resulted in less performance drop in case of group2, group3 and group4 as compared to group 1. Experimental results also revealed that semantic aids considerably improved learning and knowledge transfer to the real world Wed, 14 Dec 2016 00:00:00 GMT http://localhost:80/xmlui/handle/123456789/18917 2016-12-14T00:00:00Z http://localhost:80/xmlui/handle/123456789/18914 Title: Mathematical Modeling of Low Velocity Impact on Hybrid CNG Cylinder Authors: N. Mohsinl; R. Khan; S. A. Masood Abstract: In this paper a comparison was studied between mathematical modeling of CNG hybrid cylinder under impact. Impact resistance of hybrid material is analyzed using analytical modeling. Impact resistance against applied force is studied using Hertzian law which relates contact stiffness of wooden block and composite. Finite Element Analysis (FEA) for Low velocity impact (LVI) of wooden block on hybrid CNG cylinder is done for finding structural response parameters. 2 degree of freedom (2DOF) spring mass system is used for mathematical modeling of impact of wooden block on hybrid CNG cylinder. Stiffness values by analytical modeling are used in mathematical modeling for comparison with FEA. Results further show that values found by FEA and mathematical modeling are closely comparable. Fri, 11 Nov 2016 00:00:00 GMT http://localhost:80/xmlui/handle/123456789/18914 2016-11-11T00:00:00Z