UET Peshawar Publications Site (University of Engineering and Technology, Peshawar)
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NEED FOR AN UPGRADATION POLICY FOR INDUSTRIAL TECHNOLOGY-I
No full textThe past experiences of technology development in the developing countries have led to a consensus that there is a need for improvement of technological capabilities to develop products and processes for effective competition in the international market. However, it is important to realize that development of such technological capabilities will not occur if left to market forces rather it requires concerted efforts ¡o evolve a policy framework to address such issues. This paper focuses on portraying current status of industrial sector of Pakistan followed by critical analysis based on policy trends in technology ‘s world. Data of various industrial sectors of Pakistan was collected from different sources to establish its current status in the international market. The ground realities necessitates a dire need for upgradation policy for technology of different industrial sectors of Pakistan to capture due share in the world market. A conceptual framework for such an upgradation policy has been spelled out at the end
A REVIEW OF HIGH-SPEED MACHINING AND ITS CURRENT RESEARCH CONCERNS
No full textA review of the research done in the field of High-Speed Machining (HSM) is presented. The review starts with the basic definitions of HSM. The history of work done in this field is then explored. Endeavors in Mathematical Modeling, Finite Element Simulation and Experimentation by different researchers are reviewed. Finally the current concerns and future directions in the realm of HSM are pointed out
UTILIZATION OF CEMENT WASTE IN ASPHALT CONCRETE
No full textCement Kiln Dust (CKD) was added as a filler in asphalt concrete mixes. It was found that adding CKD to asphalt concrete mixes as a filler (5 and 7% of aggregate) produced acceptable mixes at 4% air voids but the optimum asphalt content was lower for the 3 and 5% CKD and higher for 7% CKD compared with conventional mineral filler (limestone dust
A MODEL FOR EVALUATING THE FLOW RATE OF AN EXTRUDER FOR PLASTIC RECYCLING
No full textFor several years, Municipal Solid Wastes (MSW) from packaging, newspapers, batteries, furniture, metals, clothing‘s, bottles, and food scraps have contributed negatively to the increased deterioration of our environments particularly in developing countries. It has resulted in activities that threaten lives (such as disease outbreaks and severe health hazards). As a result, governments and other stakeholders in environment have considered both theoretical and practical approaches to waste control. Recycling, which has enormous benefits of reducing manufacturing cost of new products and providing employment for the populace has been chosen as a viable option. Despite the multi-disciplinary efforts involved recycling models, guidelines applicable in the design of flow rates of extruders for plastic recycling processes are missing. This gap is addressed in the current paper. This paper conceptualizes the flow rates as an input output system in a continuous dynamic state. With a focus on the melting activity (operation section), the analysis of flow in the metering zone involves an estimation of the quantity of recycled materials that could be produced per time. The work hopefully stimulates research in an area where quantitative methodologies are sparse
FACTORS AFFECTING FUEL EFFICIENCIES OF COMMERCIAL TRUCKS
No full textPoor maintenance practices of commercial trucks, apart from a host of environmental problems, are leading to major fuel inefficiencies in the road transport sector of Pakistan. One hundred and fifty diesel operated commercial trucks were selected nationally for identification of the factors and their quantitative contribution to the fuel losses. Truck vintage caused up to 40.6% reduction in fuel efficiency, whereas the practice of keeping original motors on vehicles for 10-15 years further decreased the efficiency by 49.9%. Similarly, state of engine, road condition, speed of operation and type of steering significantly contributed to the fuel efficiency. Proper tune-up of vehicles, on the average, lowered the fuel expenses by 18 percent. This amounts to a saving of seven litres of diesel for a 100kW truck moving through ¡00km. All this suggested promotional activities for adoption of Original Equipment Manufacturers (OEM) schedules for vehicles maintenance
QUANTITATIVE ANALYSIS OF COTTONSEED OIL CAKE FOR THE DETERMINATION OF PROTEINS AS A VALUE ADDED PRODUCT
No full textCotton is a major cash crop of Pakistan and cottonseed is available in bulk quantity. Generally, cottonseed is used as one of the sources of edible oil. In the process of oil extraction, oil is extracted either by mechanical means or by chemical means i.e., using solvents. The solid residue (cake) ¡s considered of little value and commonly used as animal feed. In this piece of work, in contrast to conventional approach, we have concentrated to find out the cake as a rich source of protein.The work is based upon the practical evidences of the presence of the bulk amount of protein in cottonseed oil cake. The main theme was to find he protein content in the cottonseed oil cake. For that purpose samples of cottonseed oil cake were collected from five oil mills located in Hyderabad. The samples were then analyzed for moisture, oil and protein content in the laboratory. It was found that the mean value of protein contents is quite high, i.e., 19.06% in addition to moisture content - 9.76% & oil content - 7.78%. The quantity of protein in cottonseed oil cake is sufficient to start commercialization of its use as protein supplement. However, toxic matter (gossypol) is also found in fractions in the cottonseed oil cake, which can possibly hinder the process of its commercialization. Due to the presence of gossypol in the cake ¡t cannot be safely employed for human beings. This problem can possibly be solved if some attention is paid to the elimination of the toxic matter
TEMPORAL AND SPATIAL CHANGES IN WATER QUALITY OF THE INDUS BASIN
No full textTotal useable water supply for agriculture is essentially fixed and is a limiting factor for increasing agriculture production. The objectives of this paper are to evaluate water quality of rivers, drains and groundwater. Suggestions are made for controlling pollution and for sustainable use of water. The scope of the paper is limited to the Indus Basin. The criteria based on TDS, SAR and RSC was used to categorize water as useable, marginal and hazardous quality for agricultural use. Data of different water quality surveys from 1959 to 2003 were used for the study. Spatial changes of groundwater quality indicate saline water intrusion towards fresh groundwater pockets. Temporal changes of groundwater quality also show deterioration of water, quality over long periods. Canal supplies need to be increased to reduce reliance on groundwater which indirectly help sustainable use of groundwater.River water quality at Kotri, the lowest point in the Indus River system, is suitable for irrigation throughout the year. However, pollution is a serious issue particularly during low flow periods. During the year 2004 about 40 persons died in Hyderabad due to pollution in drinking water the source of which was the River Indus. Municipal and Industrial effluents are being disposed into rivers, drains and canals without treatment which is not only detrimental to crops, human beings, livestock and marine life but also a potential threat to environment. Out of 143 outfall drains of the Indus Basin, the effluent quality of 53 drains is useable. 46 marginal and 44 hazardous. A large number of farmers are using drainage effluent for agriculture. There is no monitoring of land and water for such use. Provincial irrigation department and environment protection agencies should provide technical guidance and support to the farmers, using the drainage effluent. The Environment Act should be strictly implemented. Provincial Irrigation and Drainage Authorities (PIDA‘s) must work with Provincial Environmental Protection Departments to achieve the compliance of NEQS and protecting the quality of rivers, canals and agricultural drainage effluent. it is recommended that integrated water resource management approach should be adopted by consulting and involving all the stakeholders to protect the water quality in the Indus Basin. A regulator programme for water quality monitoring in irrigated areas and water bodies of the country should be Initiated
BUDGETING IN ADVERTISING, A GAME THEORETIC MODEL
No full textAdvertising effectiveness has typically been measured by using regression analysis, or by employing various forms of controlled experiments. In this paper we propose a model by using game theory, a two competitors non-zero sum game model to assist a group of cellular companies in their expenses policy to uplift the profits and share in the market. Various limitations and assumptions are involved in the model; it was assumed that each company of the group provides the same facilities. Also assumed is inflexible demand in such a manner that both groups have identical cost and connection price structure. Even so, this model will help as a basic tool for more complicated models
SELECTION OF A ROBOT HAND GRIPPER IN CELLULAR MANUFACTURING
No full textRobots serve manufacturing cells in a wide variety of industrial applications. Proper robotic cell deign has become a challenging task especially when dealing with both identical and non-identical parts. This paper is about the robotic cell design in cellular manufacturing systems and selection of a robot hand gripper. An important design issue (cycle time) for the selection of both single and double robot hand gripper is considered after forming robotic cell. Based on demand information, the number of machines is calculated. The parts are grouped into families according to process similarity. The calculated machines are then arranged into a cell according to the process similarity of the parts. Machines in a cell are served by robot. The robot hand gripper (single or double) is selected on the basis of production rate. The methodology is developed in Visual Basic. An example is given to explain the methodology
A NOVEL PROPOSED NETWORK SECURITY MANAGEMENT APPROACH FOR CYBER ATTACKS
No full textNetwork security is a discipline that focuses on securing networks from unauthorized access. Given the escalating threats of malicious cyber attacks, modern enterprises employ multiple lines of defense. A comprehensive defense strategy against such attacks should include (1) an attack detection component that determines the fact that a program is compromised, (2) an attack identification and prevention component that identifies attack packets so that one can block such packets in the future and prevents the attack from further propagation. Over the last decade, a significant amount of research has been vested in the systems that can detect cyber attacks either statically at compile time or dynamically at run time. However, not much effort is spent on automated attack packet identification or attack prevention. In this paper we present a unified solution to the problems mentioned above. We implemented this solution after the forward engineering of Open Source Security Information Management (OSSIM) system called Preventive Information Security management (PrISM) system that correlates input from different sensors so that the resulting product can automatically detect any cyber attack against it, and prevents by identifying the actual attack packet(s). The PrISM was always able to detect the attacks, identify the attack packets and most often prevent by blocking the attacker's IP address to continue normal execution. There is no additional run-time performance overhead for attack prevention