UET Peshawar Publications Site (University of Engineering and Technology, Peshawar)
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THE EFFECT OF TANGIBLE AND INTANGIBLE ASPECTS ON EMPLOYEES’ PERFORMANCE
No full textManufacturing sector of Pakistan is facing tough competition from national & international organizations. In such a competitive environment, organizations can compete effectively by utilizing the potential of its human resource. While managing human resources, it is important to provide such facilities to the employees which result in yielding best employees’ performance. Several organizations, however, struggle to manage performance of their employees. The key research question which this study set out to answer was to see the effects of tangible and intangible aspects on employees’ performance. After a detailed review of the literature, list of tangible and intangible aspects were identified. These aspects were utilized to develop a measure. The findings of the study indicate that organization Lucky Cement Ltd. Pezu, Pakistan, is modestly offering these aspects to their employees. Moreover, results acknowledge that tangible aspects and intangible aspects were related and both having positive effects on the employee performance. A number of recommendations are given regarding implementing these tangible and intangible factors for manufacturing concerns in Pakistan
FREQUENCY AND POLARIZATION RECONFIGURABLE MICRO-STRIP ANTENNA
No full textThis paper presents a dual band frequency and polarization reconfigurable microstrip antenna. The simple design consists of two slots and two feeds. In one slot there is a switch. The two feeds are positioned on the right and left diagonal of microstrip antenna. When the switch is ON the electrical size of antenna becomes small and it resonates at higher UMTS 2100 MHz band with circular polarization. Similarly, when the switch is OFF then size of antenna is large and it operates at lower UMTS 1900 MHz band with elliptical polarization. The sense of polarization can be easily changed from right handed to left handed by changing the feed position. The radiation pattern is not disturbed by switch state and gain of proposed antenna is above 5 dBi. This antenna can be used in emerging reconfigurable wireless communication systems
EFFECT OF COCONUT FIBER AND MARBLE WASTE ON CONCRETE STRENGTH
No full textA large amount of marble waste (MW) is being produced by marble industry every year, while coconut fibers (CF) are abundantly available in tropical regions. These two raw materials can be used as a partial cement replacement in concrete. In this research, a combination of CF and marble dust (MD) has been investigated. Cubes were formed for compressive strength and beams were formed for flexure strength tests using different percentages of cement, CF and MD. It has been found that the combination affects the strength of concrete. It was observed that a total of 5% replacement of cement with CF and MD produced an increase in strength. More replacement results in a decrease in strength. Results showed that CF and MD can act as partial cement replacement, when used in specific proportions
COMPARISON OF CORRELATOR DETECTOR WITH POLARITY COINCIDENCE CORRELATOR (PCC) DETECTOR — DEPENDENT AND INDEPENDENT INPUTS
No full textA general model of PCC detector and its simulation on computer has already been developed and presented [1]. This paper utilizes those results in evaluating PCC detector for a strong, additive, Markov signal of small and large strength common to two independent white noise inputs. The results are compared with the correlator detector, which is its analog kind. The losses in hard limiting the data, used in PCC detector are presented as the cost of clipping. It is found that the cost of clipping decreases with the increase in signal strength. In another example, the PCC detector is analyzed for a small Markov signal which is common to two dependent noise inputs. In this case, the cost of clipping increases substantially with the noise correlation
ENVIRONMENTAL IMPACT ASSESSMENT OF POTENTIAL MINING CONCERNS AT THAR COAL FIELDS AND THEIR REMEDIES
No full textThe research covers the Tharparkar district is situated in the south east of Sindh province of Pakistan. This research identifies the impacts of ongoing coal mining activity on ground water quality of Thar coal mines area and propose mitigation measures for management of the excessive water from continuous dewatering at mining area. On the basis of different EIA studies anthropogenic impacts on ground water quality of the Thar Coal mining area is determined. Removal of massive quantities of overburden will most likely alter the mass balance at the mining site and hence the sand, and overburden as well water from dewatering of aquifers must be retained within the ecosystem of the Coalfields. Ground water abstraction of about 25 million m3/year will yield abundant volume of brackish water, which will have to be desalinized for cooling purposes of the power plant and for the other beneficial use. Assessment of environmental impact shows that the overall significance of impact is of medium intensity, while the severity of impact is quite significant. Suggestions are proposed on the premise of the present investigation for the administration of Sindh and other partners. The dewatering surplus can straightforwardly be utilized as a part of the power era process as being drilled in different areas of the world. The dewatering surplus can be utilized in growing of the halophytes. The dewatering surplus can be treated with public private partnership to serve the water needs of the Thar District people, flora and fauna
ASSESSMENT OF SEDIMENT TRANSPORT LOAD FROM GOAML RIVER AND ITS IMPACT ON THE GOMAL ZAM DAM LIFESPAN
No full textThis paper estimates the sediment load transported by Gomal River at Khajuri Katch and Kot Murtaza on yearly-basis. An eight years sediment data (1981-88) compiled by the surface water hydrology division of WAPDA was analyzed. Based on the available data and using regression analysis a model is developed to establish a correlation between water discharge and sediment load. The model is an attempt to ascertain the rate of erosion in the catchment of the Gomal River since no generalized model has so far been developed to explain the nature of such weathering activities and all such works are situation specific. Relation between the water discharges to sediment load that it carries has been developed to signify the Gomal River catchment’s erosion. The analysis shows that the catchments is eroding at the rate of 1.67 acre-feet and the sediment water ratio is 3.0% which is the second highest value the world over after Yellow River in China. The variation of different parameters in sediment-water system i.e. water discharge, sediment load, sediment concentration and sediment quality have been estimated from the actual data and are shown by histograms and bar graphs. The relations developed are applicable only to the Gomal River system. It is hoped that the study will invite interest and attention of planners, researchers, and all those concerned with the problems and menace of soil erosion, sediment load concentration in hydraulic structures and its impact over the life span of hydraulic structures i.e dams deemed to be constructed across the river with the objective to minimize the sedimentation problems.
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AN EVOLUTIONARY ALGORITHM FOR JOB-SHOP SCHEDULING
No full textIt has been a general perception that the hardness level of job-shop scheduling problems is comparatively high and that is why effective, efficient and accurate procedures for scheduling are required to substantiate its usefulness. Therefore, in this paper a hybrid approach, primarily based on Genetic Algorithm (GA), ispresented to handle the problem of scheduling job-shop that consists of m number of machines and n number of jobs. This approach is actually a combination of a Local Search Heuristic (LSH) with standard GA and optimizes the value of makespan. Computational experience, that includes some case studies and a number of problems from literature, shows that the LSH has the tendency to minimize the makespan value and help the algorithm to find out the optimum solution for the problem in fewer generations
SEISMIC HAZARD ANALYSIS OF ISLAMABAD
No full textSeismic Hazard Analysis (SHA) is carried out for the city of Islamabad using both deterministic and probabilistic approach. Earthquake catalogue compiled by National Engineering Services Pakistan (NESPAK) for the period of (1505-2006) has been used. All Quaternary faults in the vicinity of Islamabad have been considered for deterministic hazard analysis. Seismic zoning map of NESPAK has been utilized in the research. Earthquake catalogue contains total of 11,149 events. Earthquake events of moment magnitude (Mw>4.0) are taken for developing the recurrence relationships of selected four (04) seismic source zones. The attenuation equation of Boore and Atkinson 2008 next generation attenuation (BA08 NGA) has been used for the determination of the ground motion parameters. Maximum PGA of 0.49g by BA08 NGA obtained for Islamabad at rock site due to Main Boundary Thrust (MBT). In PSHA using the Crisis-2007 software, PGA values with 10% probability of exceedance in 50 years i.e. the return period of 475 years have been determined. The PGA results obtained at bedrock are 0.28g by BA08 NGA attenuation relation
4LSB BASED DATA HIDING IN COMPLEX REGION OF DIGITAL IMAGES AND ITS EFFECTS ON EDGES AND HISTOGRAM
No full textData hiding in the complex regions of cover image make the use of edges for hiding and communicating secretinformation. The complex region in a digital image is the least sensitive to human visual system (HVS) in term ofchanges than smooth region. The data hiding in the complex regions affect the edges and the histogram of the image.These two may cause the existence of hidden information to be detected. In this paper, the effect on image edgesand histogram is investigated when subjected to true edge based 4 least significant bits (4LSB) steganography. Thetrue edge based 4LSB steganography technique has been found very efficient, creating no significant effect on edgesand undetectable histogram differences. Which prove this technique immune to histogram difference steganalysis. Thequality of the edges is preserved and a PNSR of greater than 74dB has been observed for different cover imagesfor the true edge based 4LSB steganography. The quality of stego images, edges can been observed qualitativelyand it be seen clearly that no significant changes are introduced due to hiding information in edges using the trueedge based steganography
SINGLE FACILITY LOCATION SELECTIONPROBLEM FOR A PAKISTAN BASED ICE CREAM COMPANY: A CASE STUDY
No full textThe facility location optimization problems are economically justifable and play a critical role in reducing the overall running cost. An optimal facility location is directly proportional to traveling cost between facility and destinations. In past decade, extensive research has beencarried out in this feld. Most of the facility location optimization techniques provide optimum or near optimumsolution. In this paper, an optimization technique median method is applied to a real world problem of a multinational ice cream company’s factory located in Lahore, Punjab (province) Pakistan, with an objective of minimum overall cost between a warehouse and destinations. The company wanted to locate the warehouse in Khyber Pakhtunkhwa (KPK), province in order to meet the demand in KPK on time and reduce the travelling cost between the warehouse and destinations. Moreover, using Contour line technique a generic computer based simulation model is developed using MATLAB in order to draw an ISO cost contour line around the optimum location. The model is successfully developed and provides encouraging results. The cost analysis of each potential location is also presented in this paper