Asian Journal of Engineering, Sciences & Technology

Abbreviated key title: AJEST
ISSN: 2077-1142
Published by: Iqra University
Periodicity: Bi-Annualy
Months: March & September
Start year: 2011




Title: BUILDING GENERALIZE QA SYSTEM, SLR Author(s): Muhammad Suleman, Mohammad Zoaib, Hussain Shabbir, Hatim Ali Asghar, Humdiya Raza, Tahir.Q.Syed

Abstract: Building Question Answering (QA) systems is a very important task in Information Retrieval (IR) / Natural Language Processing (NLP) domain. In IR / NLP domain there are many tasks which are similar which means solution of one task can be used to solve another task. These tasks include building QA systems, paraphrase detection, semantic similarity between sentences/words, semantic entailment, machine comprehension, slot filling and other like tasks. We found that many of these tasks are tackled in research using different techniques and different datasets. We also found that although standardized but most datasets are very small and they cannot solve generalize semantic assignment problem which lies at the heart of all these problems. Recently new dataset are published with larger size in the hope that they will be useful in building Generalize QA system. We do systematic literature review (SLR) of almost all the papers from 2010 to 2012 related to above mentioned problems. We try to find the correct direction for building a Generalize QA system that will be helpful in QA on any open domain corpus/dataset. We extract all the techniques / features / dataset / evaluation metrics / state of the art results published by different papers developing QA systems or doing like tasks. In the light of this statistics we answer some hypothesized question which we think are really helpful in building Generalize QA systems. For SLR we apply procedure as defined in [38].


 



Title: Regulating Solar LED Array with Vehicle Detection to Turn Streetlight On or off To Save Energy Author(s): Ronak Ali Baladi, Madad Ali Shah

Abstract: Vehicle detection mechanism would save energy and that energy can be given to grid station. If any movable object is 60m at a distance then streetlight will be switched on to lux a road and when object crossed then same will be switched off. Streetlights are on along local roads, motorway, highway but to name a few, for all times as they are not having an automatic control to drive LED (Light Emitting Diode) path light either on in the time of evening and night or off in day time with detection of light dependent resistor. Specially, implementing solar driven LED way lights will decrease wastage of energy due to revealing of rays intensity by LDR. This segment, LED Streetlights, is important for public as it will reduce accidents and severe incidents occurring along road. Resourceful programmed sensor will be an all-time active component of this very smart system. Inventive mechanism to make less use of, besides being proficient, Photovoltaic panels to light LED-Array motorway tower would be an added edge to a poor country where road are not getting light so that public could travel along it without having hesitation there any source of light. LED Solar arrays is being implemented with single axis solar tracker to make efficiency high and motion sensor to detect vehicle nearby 60m to on the streetlight.


 



Title: Real-Time Implementation Of Fuzzy Logic Based DVFS For Leon3 Architecture Author(s): Shaheryar Najam, Jameel Ahmed

Abstract: In the field of embedded system, there is a trade-off between power/performance optimization. Furthermore, demand for High Performance Computing (HPC) is increasing as well [1], hence many heuristics techniques were presented at various development levels such as hardware software co-design, schedulers and optimal code compilation. However, there is a critical issue of power and heat dissipation with these HPC. This paper presents a fuzzy logic based Dynamic Voltage and Frequency Scaling (DVFS) techniques to reduce the power without compromising the performance. For real time implementation, Leon3 architecture was implemented on Vertex 5 FPGA board. Results were tested using both series and parallel benchmarks and 19 % reduction in power consumption is observed.


 



Title: A Piezoelectric Energy Harvester for simultaneous Vibration Isolation and Energy Harvesting Author(s): Tashfeen Ali, Farid Ullah Khan

Abstract: A vibration isolator with energy harvesting abilities is presented in this work. The developed device is able to isolate the environment from vibration of appliances such as electrical generators and automobile’s engine etc. and convert the vibration to electrical energy. The resulting energy produced from the energy harvester can be used to power the condition monitoring unit The developed device was able to exhibit a resonance at 56 Hz frequency. 1.7 V open circuit voltage was reported for the developed harvester at 2 g acceleration. Moreover, the maximum power delivered to the optimum load of 340 k? was 1.1 mW.


 



Title: Multi-Bot: An Android based Framework for the Communication and Navigation Systems of Autonomous Robots Author(s): Lovesh Kumar, Mansoor Ebrahim, Syed Hasan Adil, Syed Nadeem Ahsan

Abstract: Autonomous robots have the ability to acquire knowledge about their environments, and perform task according to the built in intelligent software without human interference. The biggest challenge of today’s industry of autonomous robot is the software which actually drive the various functions of robots including communication and navigation systems. In this research, an android based framework is proposed that can be used to provide a low cost and more effective communication and navigation system for autonomous robots. In addition, the autonomous robot (Multi-bot) was developed using Arduino UNO microcontroller integrated with different sensors and C-Programming language along with android studio are used in a synchronized pattern for mobile application development.


 



Title: Novel Adaptive Mesh Refinement Technique for Dynamic Structural Analysis of Connecting Rod Author(s): Ishfaque Ali Qazi, Abdul Fatah Abbasi, Muhammad Sharif Jamali, Intizar Ali, M. Tarique Bhatti,Manthar Ali Khoso.

Abstract: Since connecting rod is to subjected complex loading conditions, for which realistic stress prediction is a challenging task. Though the Finite Element Method (FEM) is widely used, but its results contain some inaccuracies that comes from various sources, out of them discretization error is considered to be major source. Present study aims to enhance FE solution accuracy through adopting newly developed Adaptive Mesh Refinement (AMR) technique. In present studydynamic structural behavior of connecting rod is evaluated through conventional and advanced AMR discretization technique. In this research analysis of connecting rod conducted for 1.3 second where cyclic loads have been applied within 13 sub steps at various crankshaft positions. It is observed through analysis results, that maximum stresses have been produced in connecting rod at shank and at big end during compressive and tensile loads respectively. While comparing results obtained from conventional and advanced AMR discretization technique it is observed that 15.7% increase in Von-Mises stresses was noticed by applying AMR technique during compressive loads. Whereas in case of tensile loading no effect was observed.


 



Title: Solar Powered Irrigation System for Agriculture based on Moisture Content in the Field and Saving Energy and Water with Optimum Designing Author(s): Ronak Ali Baladi, Madad Ali Shah

Abstract: In this research, solar power derives water pump to have water from bore well. From there, drawn water goes to reservoir. Outlet of tank (reservoir) is regulated by moisture sensor (MS) and controller, so that water consumption can be optimized. Flow of control is being controlled in this smart system, water is regulated from water tank to soil. Design of Solar Power Irrigation system saves electric energy by reducing the usage of grid energy, saves oil expenses incurred in tube wells, and most significant, it reduces wastage of water as it is an automatic system to secure water. Solar power, a cost effective source, can be a suitable solution to farmers, it has been proposed in this research that solar power irrigation system, when used with solar pump, MS and an automatic water control flow, seems to be realistic recommendation to implement throughout Pakistan so that this nation-state could overcome energy crisis and save the farmers from complications of not having sufficient resources for earning through agriculture. As solar power is abundant energy source, it is only answer to energy crisis, it is also environmentally friendly. PV (Photovoltaic) panels are made from PV cells and they are easy to use for getting solar energy from Sun rays. Efficiency comes from solar driving module, as it is crucial part of the research and moreover without using automatic irrigation component, this research would be worthless. Literature survey is given in this research with proposed solution and implementation, moreover cost analysis is done with help of results, and then conclusion is stated.


 


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Faculty of Engineering, Sciences and Technology, IQRA University, Defence View, Shaheed-e-Millat Road, Karachi-75500


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Email: ajest@iqra.edu.pk