Articles
256 open-access articles · page 10 of 13
ArticlesA NOVEL WIDEBAND MICROSTRIP PATCH ANTENNA FOR SATELLITE COMMUNICATIONS IN KU-BAND
Gulzar Ahmad, Muhammad Inyatullah Babar, Muhammad Irfan
In this paper bandwidth enhanced microstrip patch antenna has been proposed for satellite communications. The bandwidth has been increased using parasitic patches. The size of the proposed antenna is 15x8 mm2. It has been observed that the antenna has a bandwi…
3 Aug 2020- Articles
ANALYSIS OF CHIP PRODUCED IN FREE MACHINING OF TI-6AL-7ZR-3NB-4MO-0.9ND AND TI-5AL-7ZR-7NB-0.7ND ALLOYS
Numan Habib, Naseer Ahmed, Riaz Muhammad, Himayat Ullah, Muftooh Ur Rehman, Kareem Akhtar
The use of Titanium and its alloys in modern era can never be discarded. Continuous developments in many industries like aviation and power generation increased its use in many applications, not only because of its chemical properties but also because of its e…
3 Aug 2020 - Articles
SOME AGGREGATION OPERATORS FOR BIPOLAR-VALUES HESITANT FUZZY INFORMATION BASED ON EINSTEIN OPERATIONAL LAWS
Tahir Mahmood, Kifayat Ullah, Murad Ullah, Naeem Jan, Irfan Deli, Qaisar Khan
This article is based on Einstein operations for bipolar-valued hesitant fuzzy sets (BVHFSs). We extend the concept of Einstein operators for BVHFSs by defining bipolar-valued hesitant fuzzy Einstein weighted averaging (BPVHFEWA) operators and weighted geometr…
3 Aug 2020 - Articles
FAULT-MANAGEMENT ON SYSTEM’S LEVEL IN CAN-BASED “SHARED-CLOCK” ENVIRONMENTS
Muhammad Amir, Syed Waqar Shah, Michael J. Pont
This paper is in continuation to our previous work “Improving flexibility and fault-management in CAN-based “Shared-Clock” architectures”, published in the Journal of Microprocessors and Microsystems (Volume 37, 2013, issue 1, pages 9-2…
3 Aug 2020 - Articles
DEVELOPMENT OF OPTIMIZED MAINTENANCE SYSTEM FOR VEHICLE FLEET
Rahim Haider, Al Mustaan Kakar, Sikandar Bilal Khattak, Safi ur Rahman, Shahid Maqsood, Misbah Ullah et al.
Vehicle fleet holds a firm ground in both manufacturing and service industry. Fleet management plays a substantial role in an organization’s growth. Maintenance of vehicle fleet is critical in terms of cost, availability and customer satisfaction. The ma…
31 Jul 2020 - Articles
COST AND PERFORMANCE OPTIMIZATION OF PRECAST POST TENSIONED PRE-STRESSED GIRDER BRIDGE SUPERSTRUCTURES
Salman Saeed, Akhtar Naeem Khan, Rashid Rehan, Sikandar Hayat Sajid, Muhammad Sagheer Aslam, Khan Shahzada
Bridges are the most costly components of a road transportation network. Pre-stressed concrete girders with cast in place concrete decks are widely used for short to medium span bridges. The design and subsequent cost of a bridge depends on key geometric varia…
31 Jul 2020 - Articles
INVESTIGATION OF USING PAPER INDUSTRY WASTE (HYPO SLUDGE) IN CONCRETE MIX
Faisal Shabbir, Naeem Ejaz, Daulat Khan, Naveed Ahmad, Jawad Hussain, Muhammad Fiaz Tahir
Cement industry is one of the major producers of carbon dioxide gas (a greenhouse gas) and ordinary concrete contains about 12% cement. The world’s annual production of cement is 1.6 billion tons which accounts for about 7% emission of carbon dioxide gas…
31 Jul 2020 - Articles
DEVELOPMENT OF A LOW VOLTAGE AC TO DC CONVERTER FOR MESO AND MICRO ENERGY HARVESTERS
Farid Ullah Khan, Tashfeen Ali, Khubroo Jamil
Energy harvesting is widely used for the operation of wireless sensor nodes. Most of the energy harvesters generated voltage levels are sinusoidal or random in nature, moreover, the output voltage levels these produce are in low (in mV range). For sensor opera…
31 Jul 2020 - Articles
MAINTENANCE SYSTEM FOR HEAVY EARTH MOVING EQUIPMENT
Anwar Ullah, Sabir Islam, Sikandar Bilal Khattak, Safi Ur Rahman, Shahid Maqsood, Misbah Ullah et al.
Heavy earth moving equipment’s are critical for completion of any developmental projects. Dams, schools, bridges or any mining related initiations are part of these infrastructure development projects. Usually the delays are due to the inefficient and in…
31 Jul 2020 - Articles
MODELING, SIMULATION AND FABRICATION OF AN UNDERSHOT FLOATING WATERWHEEL
Farid Ullah Khan, Adeel Ahmed, Uzair Khan Jadoon, Fahim Haider
This paper presents modeling, simulation and fabrication of an undershot floating waterwheel for power generation for run-of-the-river applications. For the undershot floating waterwheel, analytical modeling and simulation are performed to estimate the optimal…
31 Jul 2020 - Articles
MACHINERY SELECTION FOR DEMOLITION AND RECYCLING OF PAVEMENTS: A SIMULATION-BASED TOOL
Hassan Nasir, Rashid Rehan, Rizwan Younis, Fazal Mabood, Salman Saeed, Muhammad Sagheer Aslam
Proper selection of the type and number of machinery on construction is critical to the total cost and duration of projects. This especially applies to projects involving using of heavy machinery such as earthmoving projects. Currently, many construction manag…
31 Jul 2020 - Articles
IMPLEMENTATION OF TAST CODES IN DS-CDMA COMMUNICATION SYSTEM
Zahoor Ahmed Baloch
The fundamental principle of threaded algebraic space-time (TAST) block code and DS-CDMA are retrospectedand their integrationare studied and analyzed. Simulation results show that a substantial improvement in bit error rate (BER)can be achieved in CDMA networ…
31 Jul 2020 - Articles
THE REDUCTION OF SPECIFIC ABSORPTION RATE AT DIFFERENT FREQUENCIES
Sahib Khan, Abdur Rehman, Nasir Ahmad, Muhammad Naeem
This Paper is about the reduction of specific absorption rate (SAR) of wearable rectangular patch antenna for 1.8GHz and 2.45GHz wireless applications. Antenna is designated on a 3mm X 3mm X 3mm resolution truncated Hugo body model in Computer simulation techn…
31 Jul 2020 - Articles
SINGLE FACILITY LOCATION SELECTIONPROBLEM FOR A PAKISTAN BASED ICE CREAM COMPANY: A CASE STUDY
Suhaib, Shahid Maqsood, Sikandar Bilal Khattak, Misbah Ullah, Rehman Akhtar, Rashid Nawaz et al.
The facility location optimization problems are economically justifiable 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, e…
31 Jul 2020 - Articles
OPEN MP-BASED PARALLEL AND SCALABLE GENETIC SEQUENCE ALIGNMENT
Asif Ali Khan, Laiq Hassan, Salim Ullah
In bioinformatics, sequence alignment is a common and insistent task. Biologists align genome sequences to find important similarities and dissimilarities in them. Multiple heuristics and dynamic programming based approaches are available for sequence alignmen…
31 Jul 2020 - Articles
FREQUENCY AND POLARIZATION RECONFIGURABLE MICROSTRIP ANTENNA
Muhammad Farooq, Shahid Bashir, Irshad Ullah, Muhammad Nadeem
This 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…
30 Jul 2020 - Articles
VARIATION IN CITATION BASED FRACTIONAL COUNTING OF AUTHORSHIP
Tehmina Amjad, Ishfaq Ahmad, Muhammad Akram Shaikh, Nabila Naz
Existing indexing methods do not consider the variation among number of citations received by publications of authors. In this paper, we propose variation in citation based fractional Vf -index which not only consider the number of authors but also the variati…
30 Jul 2020 - Articles
OPTIMIZATION OF GAS TUNGSTEN ARC WELDING PARAMETERS ON PENETRATION DEPTH AND BEAD WIDTH USING TAGUCHI METHOD
Muhammad Ibrahim, ShahidMaqsood, Rafiullah Khan, Muhammad Amjad, SakhiJaan
The objective of this paper is the optimization of the gas tungsten arc welding parameters on penetration depth and bead width. Taguchi L25 orthogonal array was used for the design of experiments. Welding experiments were performed on stainless steel specimens…
30 Jul 2020 - Articles
DEVELOPMENT OF A TESTING RIG FOR VIBRATION AND WIND BASED ENERGY HARVESTERS
Farid Ullah Khan, Muhammad Iqbal
This article describes the fabrication and characterization of a medium scale vibration shaker and a wind tunnel for testing of micro and meso scale vibration based, wind based and hybrid (using combined vibration and wind) energy harvesters. The mechanical sh…
30 Jul 2020 - Articles
DESIGN AND COST ANALYSIS OF MOLD MAKING FACILTY AT GHANI GLASS INDUSTRY: A CASE STUDY
Muhammad Ismail, Shahid Maqsood, Abdul Shakoor, Feroz Shah
It is important for the manufacturing and service industry to reduce their costs and expenses to maintain a sustainable position in the global marketplace. Selecting the right manufacturing strategy and planning is a critical decision for production managers i…
30 Jul 2020