Articles
256 open-access articles · page 11 of 13
ArticlesTEMPORAL VARIATION IN GROUND WATER QUALITY DUE TO URBANIZATION. CASE STUDY: DISTRICT PESHAWAR, PAKISTAN
Mahmood Alam Khan, Muhammad Yaseen, Mujahid Khan, Amjad Khan
Groundwater is a significant source of water for both domestic and agricultural use. The main objective of this study was to identify temporal variations in groundwater quality of Peshawar by developing GIS based physio-chemical parameters contour maps,…
30 Jul 2020- Articles
EXPERIMENTAL INVESTIGATION OF FRACTURE TOUGHNESS, HARDNESS AND LOAD-INDENTATION DEPTH RESPONSE OF TI-64 USING VICKERS INDENTATION TECHNIQUE
Riaz Muhammad, Naseer Ahmeda, Abdul Basit, Rizwan Alim Mufti
Titanium alloys display the matchless blend of physical and mechanical properties which have made them appropriate for aerospace, chemical, and biomedical industries services. Preeminent strength-to-density ratio, reduced density, incomparable corrosion resist…
30 Jul 2020 - Articles
NOISE CONTROL FILTRATION OF LATERAL AND YAW DYNAMICS FOR RAILWAY VEHICLE WHEELSET ON TRACK
Zulfiqar Ali Soomro
The noise is the fundamental substandard sign of smooth running of the railway vehicle wheelset over the railroad. This disturbance is created deteriorating environment on deranged railway vehicle speed in any direction of basic degree of freedom. In thi…
30 Jul 2020 - Articles
EXPERIMENTAL INVESTIGATION OF THE EFFECTS OF FUEL INJECTION PARAMETERS ON DIESEL ENGINE PERFORMANCE AND EMISSIONS
Younis Jamal, Asad Naeem Shah, Wasif Amin Butt, Ahmad Naveed, Muhammad Usman
The climate changes and increase in global temperature are the key factors that have mainly amplified the exploration studies of changing fuel injection and other constraints of compression ignition (CI) engines for the abatement of exhaust emissions. In…
30 Jul 2020 - Articles
4LSB BASED DATA HIDING IN COMPLEX REGION OF DIGITAL IMAGES AND ITS EFFECTS ON EDGES AND HISTOGRAM
Sahib Khan, Muhammad Naeem, Tawab Khan, Nasir Ahmad
Data hiding in the complex regions of cover image make the use of edges for hiding and communicating secret information. The complex region in a digital image is the least sensitive to human visual system (HVS) in term of changes than smooth region. The data h…
30 Jul 2020 - Articles
ROBUST MULTIMODAL FACE RECOGNITION WITH PRE-PROCESSED KINECT RGB-D IMAGES
Nasir Ahmad, Jehad Ali, Khalil Khan, Muhammad Naeem, Usman Ali
Researchers have tried to improve the accuracy of face recognition by combining 2D and 3D images to overcome the problems of illumination, pose variation and occlusion. Although combining 2D with 3D have shown better results when compared with 2D images only,…
30 Jul 2020 - Articles
ROW LEVEL IMAGE FORGERY DETECTION TECHNIQUE USING EMBEDDED DIGITAL SIGNATURES
Sahib Khan, Muneeza Wahid, Muhammad Abeer Irfan, Muhammad Naeem, Asma Gul, Muhammad Haseeb Zafar
Image forgery detection is one of the most important issues in today’s modern world. It has become very easy to change the contents of digital images with image editing tools and software. This paper is presenting a new technique to detect any changes ma…
30 Jul 2020 - Articles
PERFORMANCE IMPROVEMENT OF COMPRESSOR TO RECOVER FLARE GAS USING DESIGN OF EXPERIMENT TECHNIQUES
Naseem Ahmad, Sahar Noor, Rehman Akhtar, Misbah Ullah, Khizar Azam
The main purpose of this research work is to deploy engineering experimental design techniques to recuperate large quantity of flare gas with the help of a new proposed plant process. Some factors responsible for disturbing routine of compressor are categorize…
30 Jul 2020 - Articles
CRACK CLOSURE AND FIBRE BRIDGING CONTRIBUTION IN THE STRESS-RATIO EFFECT ON DELAMINATION GROWTH UNDER FATIGUE
Rafiullah Khan, Sakhi Jan, Muhammad Amjad, Saeed Badshah, Sajjad Ahmad
The objective of this paper is to investigate the contribution/role of the crack closure and the fibre bridging effects in stress-ratio influence in mode I delamination growth in carbon/epoxy composite laminates. The crack closure effect has been assessed by t…
30 Jul 2020 - Articles
MECHANICAL PROPERTIES OF LEAD FREE SOLDER ALLOY FOR GREEN ELECTRONICS UNDER HIGH STRAIN RATE AND THERMAL AGING
Muhammad Aamir, Riaz Muhammad, Naseer Ahmed, Muhammad Sadiq, Muhammad Waqas, Izhar
Lead free solder (LFS) alloys have been widely acknowledged due to its good mechanical properties and no harmful effect on environment. The current work is focused on the examination of thermal aging and strain rates on mechanical properties of Sn96.5-Ag3.0-Cu…
30 Jul 2020 - Articles
A DISTRIBUTED GENETIC ALGORITM AND A-PRIORI ALGORITHM FOR THE HUB AND FACILITY LOCATION PROBLEMS
Muhammad Naeem, Sahib Khan, Nasir Ahmad
A-priori is an influential data mining algorithm employed in market basket analysis to understand the purchase behavior of buyers. It has many other applications. In this study, we combine a-priori with a genetic algorithm (GA) to solve two classical NP-hard l…
30 Jul 2020 - Articles
PTFE THIN FILM COATING ON 316L STAINLESS STEEL FOR CORROSION PROTECTION IN ACIDIC ENVIRONMENT
Nabeel Maqsood, Afzal Khan, Muhammad Khalid Alamgir, Shaukat Ali Shah, Muhammad Fahad
Stainless steels (SS) are the most common materials used in various engineering applications because of their fine mechanical and excellent corrosion resistance properties in different mediums. 316L SS shows poor corrosion behavior in HCL. Hard coating i…
30 Jul 2020 - Articles
IDENTIFICATION OF SITES FOR ESTABLISHING PHOTOVOLTAIC SOLAR FARMS IN PAKISTAN USING SOLAR GEOMETRY
Khizar Azam, Abdul Shakoor, Shahid Maqsood, Muddasar Habib, Muhammad Fahad, Akhtar Zaib
Utility scale Solar farms generally consist of multiple arrays of Photovoltaic (PV) Panels which collect and convert solar energy into electrical energy. Pakistan is facing a serious energy crisis. It is working on solar energy options. Therefore, it is impera…
30 Jul 2020 - Articles
TWO-PHOTON FLUORESCENCE EXCITATION CROSS-SECTIONS OF PHOTOSENSITIZER THIOXANTHONE TO FABRICATE CELL SCAFFOLD FOR BIOMEDICAL APPLICATIONS
Bibi Safia Haq, Hidayat Ullah Khan, Abdul Shakoor, Shahnaz Attaullah, Kausar Shaheen, Khan Alam
This study investigates the fluorescence emission profile of Thioxanthone in Ethanol due to two photon absorption excitation. Thioxanthone was investigated as Photosensitizer to fabricate cell scaffold in Ethoxylated Bis Phenol A Dimethacrylate for tissue repa…
30 Jul 2020 - Articles
AGE EFFECT ON THE MECHANICAL PROPERTIES OF HIP JOINT BONE: AN EXPERIMENTAL INVESTIGATION
Rafiullah Khan, Waseem ur Rahman, Misbah Ullah, Kamran Afaq, Muhammad Amjad, Sakhi jan
Bone is one of the important body components of all vertebrates. It is a natural composite, composed of bonesalt plates as matrix binder and soft collagen as reinforcing fibers. As bone supports all the organs of a body so its mechanical behavior is of prime i…
30 Jul 2020 - Articles
AN OPTIMAL NEURAL NETWORK BASED CLASSIFICATION TECHNIQUE FOR BREAST CANCER DETECTION
Kulsoom Iftikhar, Shahzad Anwar, Izhar Ul Haq, Muhammad Tahir Khan, Sayed Riaz Akbar
Breast carcinoma is one of the most significant health diseases in the world. Early identification of breast carcinoma could be beneficial for in time treatment of the disease. This study presents an efficient classification method for benign and malignant bre…
30 Jul 2020 - Articles
CHARACTERISTICS AND EFFICACY OF ULTRAFAST LASER PULSES FOR BIOMEDICAL APPLICATIONS
Bibi Safia Haq, Shahnaz Attaullah, Abdul Shakoor, Hidayat Ullah Khan, Khan Alam, Kausar Shaheen
For the fabrication of three dimensional cell scaffolds, femtosecond laser irradiation at 800nm was used for biomedical applications. The femtosecond laser system was also used to fabricate a bricks and mortar structure in keratin films to investigate skin str…
30 Jul 2020 - Articles
CYCLE TIME OPTIMIZATION FOR IMPERFECT MANUFACTURING SETUP FOCUSING WORK-IN-PROCESS INVENTORY
Misbah Ullah, Rehman Akhtar, Sikandar Bilal Khattak, Khawar Naeem
Imperfect production processes have been focused during recent decades for optimum lot size calculation based on average cost minimization. However, cycle time optimization has been ignored relatively when processes are imperfect and inspection as a process is…
30 Jul 2020 - Articles
MUNICIPAL WASTEWATER TREATMENT BY COAGULATION/ FLOCCULATION PROCESSES VIA OPTIMIZATION OF INOCULATION DOSE AND SETTLING TIME
Shafiullah, Mohammad Nafees
This study was conducted on municipal wastewater with an attempt to identify proper treatment measures. The drain under study was observed for three months. In total 45 samples were collected from five different sites at the rate of three samples per day (Morn…
30 Jul 2020 - Articles
GRADIENT ASCENT INDEPENDENT COMPONENT ANALYSIS ALGORITHM FOR TELECOMMUNICATION SIGNALS
Zahooruddin, Muhammad Altaf, Ayaz Ahmad, Farooq Alam
Independent Component Analysis (ICA) algorithm is normallused for un-mixing and feature extraction of the fixed input block lengths. In case of varying block lengths re-adjustment of the maximum number of iterations and the step size parameter is required. In…
30 Jul 2020