Articles
256 open-access articles · page 13 of 13
ArticlesSTUDY OF INDIGENOUS FLUORSPAR AS METALLURGICAL FLUX
Zeeshan Al Hameed, Junaid Saleem, Syed Sajid Hussain, Ahsan Abdul Ghani, Hira Lal
The mineral reservoirs of Pakistan have an enormous amount of Fluorspar. Approximately 1 million ton reservoir of Fluorspar was reported previously and is mostly exploitable. Also, around one third of its usage is in the form of metallurgical flux, a key slag…
30 Jul 2020- Articles
COMPARISON OF ASYMMETRIC GARCH MODELS WITH ARTIFICIAL NEURAL NETWORK FOR STOCK MARKETS PREDICTION, A CASE STUDY
Samreen Fatima, Mudassir Uddin
Much efforts have been done for modeling of financial data theoretically and empirically for the international stock markets, for example: Asia, Europe and Australia etc. But no frequent research has been done for the SAARC countries stock markets. Therefore,…
30 Jul 2020 - Articles
LIFE CYCLE COSTING AND PAYBACK PERIOD EVALUATION OF A SOLAR THERMAL DESALINATION SYSTEM
M. Ihsan Ul Haq, Ahmad Hussain, Farzana Yasmeen, Shafiq R. Qureshi
Water is important for life and development. About 1.8 billion people will be living in absolute water scarcity by 2025.Non availability of safe drinkable water is the major source of diseases in the different regions of the world especially remote rural…
30 Jul 2020 - Articles
AN EVOLUTIONARY APPROACH FOR CMS DESIGN
Waqas Javaid, Adnan Tariq, Iftikhar Hussain, Sahar Noor
Cellular Manufacturing Systems (CMS) have been widely considered as the most efficient manufacturing systems in the case of medium variety and medium volume of production. The main advantage of CMS lies in the effective grouping of parts into families and mach…
30 Jul 2020 - Articles
EXPERIMENTAL INVESTIGATION ON UTILIZATION OF WASTE RUBBER TIRES AS FILLER IN CONCRETE
Khuram Rashid, Saroosh Danish, Muhammad Akram Tahir
This work has been carried out to evaluate the potential usage of waste rubber tires in concrete. Disposal of tires is a major problem and their accumulation create health and fire hazards. To incorporate waste rubber tires in construction industry is consider…
30 Jul 2020 - Articles
PREDICTING FUTURE TEMPERATURE AND PRECIPITATION OVER PAKISTAN IN THE 21ST CENTURY
Sajjad Ali, Muhammad Shahzad Khattak, Daulat Khan, Mohammed Sharif, Hamad Khan, Asmat Ullah et al.
over Pakistan for mid-century (2040–2069) and end century (2070–2099) time periods. An open source web tool namely “climate wizard” was used to obtain temperature and precipitation departures projected by three different GCMs under A1B,…
30 Jul 2020 - Articles
RULE-BASED IDENTIFICATION OF BEARING FAULTS USING CENTRAL TENDENCY OF TIME DOMAIN FEATURES
Muhammad Masood Tahir, Ayyaz Hussain, Saeed Badshah, Qaisar Javaid
Vibration-based time domain features (TDFs) are commonly used to recognize patterns of machinery faults. This study exploits central tendency (CT) of TDFs to develop a Rule-based Diagnostic Scheme (RDS), which identifies localized faults in ball bearing. The R…
30 Jul 2020 - Articles
FINITE ELEMENT ANALYSIS OF THE REAL LIFE LOADINGS ON THE TI-27NB HIP BONE IMPLANT
Muhammad Amjad, Abdur Rafai, Saeed Badshah, Rafi Ullah Khan, Sajjad Ahmad
Bone is an important part of all vertebrates. It support the body and homes the marrow. The bone may be damaged by number of reasons. The objective of this paper is to investigate the real life loading on the Ti-27Nb hip bone implant by using FEA. The model of…
30 Jul 2020 - Articles
A SYSTEMATIC STUDY OF THE INFLUENCE OF PROCESS VARIABLES ON THE OVERALL HEAT TRANSFER COEFFICIENT IN A SHELL AND TUBE HEAT EXCHANGER
Naveed ul Hasan Syed, Qurat-ul-Ain, Muddasar Habib, Naseer Ahmed Khan, Sultan Ali
A systematic experimental study was carried out on a shell and tube heat exchanger (STHx) to examine the influence of process variables such as hot and cold water flow rate, and the hot water inlet temperature on the overall heat transfer coefficient (U). The…
30 Jul 2020 - Articles
A NOTE ON GEOMETRIC AGGREGATION OPERATORS IN T-SPHERICAL FUZZY ENVIRONMENT AND THEIR APPLICATIONS IN MULTI-ATTRIBUTE DECISION MAKING
Kifayat Ullah, Tahir Mahmood, Naeem Jan, Zeeshan Ali
Describing uncertainties of more than one aspect is a hot research topic in fuzzy mathematics. Atanassov’s intuitionistic fuzzy set (IFS) and Cuong’s picture fuzzy set (PFS) are two featured fuzzy concepts. Recently, a novel framework of T-sp…
30 Jul 2020 - Articles
KEY PERFORMANCE INDICATORS IDENTIFICATION AND PRIORITIZATION FOR ENVIRONMENTAL SUSTAINABILITY IN THE CEMENT MANUFACTURING INDUSTRY IN PAKISTAN USING ANALYTICAL HIERARCHY PROCESS
Rashid Nawaz, Iftikhar Hussain, Sikandar Bilal Khattak
This paper examines the role of Key performance Indicators (KPIs) that is believed to influence the environmental sustainability of cement production of Pakistan. Environmental sustainability decision requires a scientific approach of identifying and pri…
30 Jul 2020 - Articles
ASSESSMENT OF WASTEWATER FOR DISPOSAL IN ACCORDANCE WITH NEQS CRITERIA AND ITS REUSE FOR IRRIGATION WITH DILUTION
Daulat Khan, Khizar Azam, Noor Muhammad Khan, Muhammad Israr, Naeem Ejaz
According to Section 11 of Pakistan Environmental Protection Act (PEPA) 1997, “No person shall discharge or emit or allow the discharge of any effluent or waste in an amount, concentration or level which is more than the National Environmental Qual…
30 Jul 2020 - Articles
EVALUATION OF AIR VENTS AND RAMP ANGLES ON THE PERFORMANCE OF ORIFICE SPILLWAY AERATORS
Muhammad Kaleem Sarwar, Zulfiqar Ali Chaudary, M.Tousif Bhatti, Daulat Khan
The performance of steep slope (θ > 30o) orifice spillway aerators by varying air vent size and ramp angles were experimentally studied. Three air vents of different sizes and five ramps with different angles were tested on a physical model of Bunji d…
30 Jul 2020 - Articles
MODEL FOR FUEL DROPLET EVAPORATION IN COMBUSTION CHAMBER OF LIQUID PROPELLANT ROCKET ENGINES
Tajwali Khan, Ihtzaz Qamar, Feroz Shah, Kareem Akhtar, Rehman Akhtar
Complete burning of liquid propellants droplets is very important to avoid combustion instability and to get higher specific impulse from liquid rocket engines. Combustion takes place in gaseous phase and reaction is fast. So, the time consumed by a drop…
30 Jul 2020 - Articles
SEISMIC DESIGN CHARACTERIZATION OF RC SPECIAL MOMENT RESISTING FRAMES IN PAKISTAN-FIELD SURVEY TO LABORATORY EXPERIMENTS
Yasir Irfan Badrashia, Qaisar Alia, Mohammad Ashraf, Muhammad Rashid
This study was undertaken to study the influence of construction deficiencies on hysteretic behavior of exterior beam-column connections. Building stock survey was conducted in five major cities of Pakistan for identification and quantification of material and…
30 Jul 2020 - Articles
PASHTO OPTICAL CHARACTER RECOGNITION USING NEURAL NETWORK
Sahibzada Abdur Rehman Abid, Muhammad Naeem, Asma Gul, Nasir Ahmad
In this paper, an Optical Character Recognition system for printed/scanned Pashto continuous text is presented. The proposed Pashto optical character recognition system uses a Feed Forward Neural Network (FFNN), consisting of an input layer, a hidden lay…
30 Jul 2020