• Optimal tuning of PID controllers for FOPTD, SOPTD and SOPTD with lead processes 

  Madhuranthakam, C.R.; Elkamel, A.; Budman, H. (Elsevier, 2006-12)

  This paper presents the synthesis and analysis of optimal tuning of proportional integral derivative (PID) parameters for different process systems: first order plus time delay (FOPTD), second order plus time delay (SOPTD) ...

• Lagrangian relaxation-based lower bound for the two-machine flow shop with synchronized periodic maintenance 

  Krimi, Issam; Benmaur, Rachid; Elhachemi, Nizar; Duvivier, David (IEEE, 2018-04)

  In this work, we present a Lagrangian relaxation approach to generate a new lower bound for the two-machine flow shop scheduling problem under synchronized and periodic maintenance activities. The word synchronized is used ...

• A Variable Neighborhood Descent Heuristic for the Multi-quay Berth Allocation and Crane Assignment Problem Under Availability Constraints 

  Krimi, Issam; Aloullal, Afaf; Benmansour, Rachid; Cadi, Abdessamad Ait el; Deshayes, Laurent; ETAL. (Springer, 2018-10)

  In this paper, we consider the integrated Berth Allocation and Crane Assignment problem, with availability constraints and high tides restrictions, in bulk port context. We were inspired by a real case study of a port owned ...

• Modeling and analysis of a quality traceability framework for phosphate extraction process: evidence from Morocco 

  Lafquih, Hind; Elhaq, Saad Lissane; Krimi, Issam; Berquedich, Mouna (Emerald Publishing Limited, 2021-10)

  Purpose According to United Nations reports, the worldwide population is expected to reach around 9.6 billion by 2050. This forecasting emphasizes the role of phosphate-based fertilizers for developing sustainable agriculture ...

• A no-delay single machine scheduling problem to minimize total weighted early and late work 

  Krimi, Issam; Benmansour, Rachid; Todosijević, Raca; Mladenovic, Nenad; Ratli, Mustapha (Springer, 2022)

  This paper investigates the no-delay single machine scheduling problem to minimize the total weighted early and late work. This criterion is one of the most important objectives in practice but has not been studied so far ...

• Model-Based operational analysis for complex systems: A case study for an integrated control system in a mining industry 

  Lafquih, H; Deshayes, Laurent; Lissane, Elhaq S; Krimi, Issam (2018)

  As many manufacturing processes, the mining industry falls within the traditional organization setup, in which the operations are executed in different locations but managed from one master place. This centralized ...

• The integrated multi-quay Berth Allocation and Crane Assignment Problem: Formulation and case study 

  Krimi, Issam; Benmansour, Rachid; Cadi, Abdessamad Ait el; Duvivier, David; Elhachemi, Nizar; ETAL. (IEEE, 2018)

  In the literature, some works deal with the integrated Berth Allocation and Crane Assignment Problem (BACAP) in container and bulk port context. Most of them consider that equipment are always available and high tide periods ...

• Two-machine flowshop with synchronized periodic maintenance 

  Krimi, Issam; Benmansour, Rachid; Hanafi, Said; Elhachemi, Nizar (EDP Sciences, 2018)

  In the literature, some works deal with the two-machine flow shop scheduling problem under availability constraints. Most of them consider those constraints only for one machine at a time and also with limited unavailability ...

• A rolling horizon approach for the integrated multi-quays berth allocation and crane assignment problem for bulk ports 

  Issam, Krimi; Benmansour, R; Cadi, A; Deshayes, L; ETAL. (Growing Science, 2019)

  In this paper, an efficient rolling horizon-based heuristic is presented to solve the integrated berth allocation and crane assignment problem in bulk ports. We were guided by a real case study of a multi-terminal port, ...

• Modelling and solving the multi-quays berth allocation and crane assignment problem with availability constraints 

  Krimi, Issam; Todosijević, Raca; Benmansour, Rachid; Ratli, Mustapha; ETAL. (Springer, 2020-03)

  In this work, we are interested in the multi-quays berth allocation and crane assignment problem under availability restrictions. Availability restrictions may arise due weather conditions, or when, for example, cranes ...

• Predicting the pile static load test using backpropagation neural network and generalized regression neural network – a comparative study 

  Alzo’Ubi, AK; Ibrahim, Farid (Taylor & Francis Online, 2018-09)

  In this paper, two neural network models; the Back Propagation Network, and the Generalized Regression Neural Network were built to predict the downward displacement of the entire static load test for Continuous Flight ...

• Optimising grey iron powder compacts 

  Borgström, Henrik; Nyborg, Lars; Khraisat, Walid; Abu Jadayil, Wisam (Taylor & Francis, 2009)

  The grey iron microstructure Fe–2C–2Si powder based compact is tailored by different kinds of in situ and post sintering processing. This has been achieved by combining thermodynamic and kinetics modelling of microstructure ...

• Solidification time effects on surface and subsurface aluminum casting defects 

  Abu Jadayil, Wisam (National Metallurgical Laboratory, 2011)

  The effects of aluminum casting solidification time on the intensity and distribution of surface and subsurface defects were reported nine samples of Al castings were used with different solidification time ranged from 5 ...

• The Effect of Carbon and Silicon Alloying Additions on the Morphology of Pores and Tensile Characteristics of Sintered Steels 

  Khraisat, Walid; Abu Jadayil, Wisam; Rawashdeh, Nathir (Springer Link, 2019)

  The influence of C and Si on pore morphology and tensile behavior of Fe–C–P–Si was investigated. The contribution of C on the morphology of pores was explained using thermodynamic formulation by incorporating the surface ...

• A Revision for the Different Reuses of Polyethylene Terephthalate (PET) Water Bottles 

  Ajaj, Rahaf; Abu Jadayil, Wisam; Anver, Hamna; ETAL.. (ProQuest, 2022-04)

  According to studies on global plastic manufacturing and the resulting pollution, plastic wastes have been identified as a serious environmental concern. The impact of plastic garbage on marine species, humans, and the ...

• Optimization of fatigue life of hollow rollers under pure normal loading 

  Abu Jadayil, Wisam; Flugrad, Donald R. (ASME Digital Collection, 2006)

  Fatigue life investigations have been made for hollow rollers in pure normal loading. Different hollowness percentages between 20% and 80% have been tested to find the optimum percentage hollowness that gives the longest ...

• Predicting Loading–Unloading Pile Static Load Test Curves by Using Artificial Neural Networks 

  Alzo’ubi, AK; Ibrahim, Farid (Springer International Publishing, 2019-06)

  In the United Arab Emirates, Continuous Flight Auger piles are the most widely used type of deep foundation. To test the pile behavior, the static load test is routinely conducted in the field by increasing the dead load ...

• NON DESTRUCTIVE TESTING FOR Ni-Ti SAMPLES PREPARED BY DIFFERENT TECHNIQES 

  AlNaber, Manar N.; Abu Jadayil, Wisam (IJASCE, 2013-10)

  Long series of searches were applied to emphasize Ni-Ti alloy composition harmony within human body. Ni-Ti alloy chemical and mechanical testing results paved for a revolution in the field of medical implants. Despite the ...

• Intelligent Sampling for Inspecting Milled Flat Plates 

  Obeidat, S. M.; Abu Jadayil, Wisam; Mandahawi, N. (2013-01)

  Realizing the nature of the manufacturing process used to make a part can help determine the locations and the optimum number of inspection points. Face and End milling processes are used in this work to produce plates and ...

• The Role of Phosphorus in Pore Rounding of Sintered Steels 

  Khraisat, W.; Abu Jadayil, Wisam; Rawashdeh, N.; ETAL.. (Taylor & Francis, 2018)

  The contribution of the surface active element Phosphorus (P) in pore rounding in sintered steels is absent in popular sintering models. Instead, these mathematical models analyze the rate of mass transport, which, according ...

• Fatigue life prediction of optimum hollowness of hollow cylindrical rollers in pure rolling contact 

  Abu Jadayil, Wisam; Flugrad, D. R.; Qamhiyah, A. Z. (ASME Digital Collection, 2006-01)

  Fatigue life investigations have been made for cylindrical hollow rollers in pure rolling contact. In addition to normal loading, the rollers have been subjected to tangential loading of 1/3rd the normal load value. ...

• Creation of Different Cell Layouts Using Part Assignment Process for Manufacturing a Traction Drive Speed Reducer 

  Abu Jadayil, Wisam; Abu Jadayil, Seham; Khraisat, Walid; ETAL.. (AURAK, 2017-09)

  : Cellular manufacturing is an advanced technique to improve the manufacturing efficiency. This paper is comparing the efficiency of three different layouts for manufacturing self-actuating traction drive speed reducer ...

• Heterogeneous Femur Model Reconstruction for Improved FEA Analysis 

  Obeidat, S.; C. Agbaraji; Abu Jadayil, Wisam (ResearchGate, 2012)

  The objective of this research is to reconstruct the femur bone as a heterogeneous model and to examine the mechanical response of the proximal femur bone under mechanical loading using finite element analysis. Contrary ...

• Surface and Subsurface Defects Investigation of Ni-Ti Samples Processed by Different Fabrication Methods 

  Abu Jadayil, Wisam (ResearchGate, 2015-12)

  The use of Ni-Ti alloy in medical applications gave a great importance for the right composition of this alloy and the method of fabricating this alloy parts. Medical implants should be tested to assure that there are no ...

• The effect of rolling direction on the weld structure and mechanical properties of DP 1000 steel 

  Khraisat, Walid; Abu Jadayil, Wisam; Al-Zain, Yazan; ETAL.. (Taylor & Francis, 2018-01)

  Since gas metal arc welding (GMAW) is a common procedure to join different sheets in the industry, the welding direction dependence on the rolling direction was investigated for a welded DP1000, a cold-rolled dual phase ...

• Using SERVIQUAL to investigate the quality of provided wireless communication services in UAE 

  Abu Jadayil, Wisam; Shakoor, Mwafak; Bashir, Adnan; ETAL.. (Emerald Publishing Limited, 2020-02)

  The purpose of this paper is to investigate the service quality of wireless telecommunication services in the UAE.This study uses the five dimensions of SERVQUAL instrumentation (reliability, assurance, tangibility, empathy ...

• Statistical Model Representing Workers Turnover Problem in Third Developing Countries: Jordanian Industrial Sector 

  Abu Jadayil, Wisam; Mohsen, Mousa S.; Al-Bashir, Adnan (ResearchGate, 2013-10)

  Jordan as one example of Middle Eastern countries suffers from the problem of workers turnover. This paper analyzed this issue numerically and by building a statistical model to find out the main reasons causing this problem ...

• Experimental Investigation of Tensile Properties of Ni-Ti Samples Prepared By Different Techniques 

  Abu Jadayil, Wisam; Al Naber, Manar (ResearchGate, 2015)

  Ni-Ti alloys have been given a lot of attention mainly for their innovative use in practical medical applications. These motives led to understand deformation mechanisms, particularly tensile fracture behaviors. In this ...

• A Novel Model for Benchmarking the Performance of Retail Stores for Retail Operations using Lean Manufacturing Approach 

  Shakoor, Mwafak; Jaber, Nasser; Abu Jadayil, Wisam; ETAL.. (ResearchGate, 2017)

  In the present study, lean manufacturing approach has been utilized to measure and benchmark the efficiency of retail services at five different store branches belonging to the same hypermarket and supermarket retail firm ...

• Fatigue life investigation of solid and hollow rollers in pure rolling contact 

  Abu Jadayil, Wisam; Flugrad, D.; Qamhiyah, A. (ASME, 2005-11)

  Two solid and hollow cylindrical rollers in pure rolling contact have been modeled. The two rollers are subjected to a combined normal and tangential loading. The Stress distribution in the contact zone has been determined ...

• The Effect of Heat-Treatment and Alloying of Ni-Ti Alloy with Copper on Improving its Fatigue Life 

  Abu Jadayil, Wisam; Serhan, Duaa (Springer Link, 2019)

  Ni–Ti alloys have achieved great importance in industry, mainly for their innovative use in practical medical applications . A major reason for that is their fatigue lives. In this research, fatigue life of different Ni–Ti ...

• Assessment of retail practices for providing enhanced value added services and improved customer satisfaction using lean manufacturing approach 

  Shakoor, Mwafak; Qureshi, Mohamed Rafik; Abu Jadayil, Wisam; ETAL.. (Dergi Park, 2017)

  The purpose of this study is to apply lean manufacturing principles in retailing services for enabling retail managers to understand takt time and value added services (VASs) in order to achieve benchmarked retail efficiency. ...

• Assessment of Fatigue Life of Ni-Ti Samples Prepared by Different Techniques 

  Abu Jadayil, Wisam; N. Alnaber, Manar (ResearchGate, 2014)

  Ni-Ti alloys have been given a lot of attention, mainly for their innovative use in practical medical applications. These motives led to understand deformation mechanisms, particularly behaviors under fatigue loading. In ...

• Evaluation of provided services at MRI department in a public hospital using discrete event simulation technique: A case study 

  Shakoor, Mwafak; Al-Nasra, Moayyad; Abu Jadayil, Wisam; ETAL.. (Taylor & Francis, 2017-01)

  The main purpose of this study is to improve on the performance of a specific healthcare department in order to meet the major administrative expectation. These expectations include better serving the patients in that ...

• Revision of the recent heterogeneous solid object modeling techniques 

  Abu Jadayil, Wisam (JJMIE, 2010)

  This paper discusses the most recent and common technologies for modeling heterogeneous objects composed of more than one material type. Researchers have found the great need for heterogeneous modeling of objects in order ...

• Different Strategies to Improve the Production to Reach the Optimum Capacity in Plastic Company 

  Abu Jadayil, Wisam; Khraisat, Walid; Shakoor, Mwafak (Taylor & Francis, 2017-10)

  In this paper a case study of a company was studied to determine the main factors affecting its production capacity, and study their influence to improve the production capacity to reach the optimum. Different aspects were ...

• Design and Manufacturng of Self Actuating Traction Drives with Solid and Hollow Rollers 

  Abu Jadayil, Wisam; S. Mohsen, Mousa (2010-09)

  The friction drive speed reducer proposed by Flugrad and Qamhiyah in 2005 was mainly investigated in this paper. That self actuating traction drive uses six intermediate cylindrical rollers to transmit motion. Those rollers ...

• Predicting optimum hollowness of normally loaded cylindrical rollers using finite element analysis 

  Abu Jadayil, Wisam (Taylor & Francis, 2010-12)

  Fatigue life investigations have been made for hollow rollers in pure normal loading. Different hollowness percentages between 20 and 80% have been tested to find the optimum percentage hollowness that gives the longest ...

• Main factors causing workers turnover in Jordan industrial sector 

  Abu Jadayil, Wisam (JJMIE, 2011-04)

  Workers turnover has been studied in Jordan to find out the main reasons causing this problem. A questionnaire was designed and distributed over twenty eight factories in Jordan, seven factories in each of the three main ...

• Efficiency Assessment in Emergency Department Using Lean Thinking Approach 

  Shakoor, Mwafak; Abu Jadayil, Wisam; Jaber, Nasser; ETAL.. (JJMIE, 2017-04)

  Lean thinking approach plays a vital role in reducing waste and enhancing productivity in production environment and service setups. Lean thinking approach may be employed in cutting down the patients' waiting time in ...

• Relative fatigue life estimation of cylindrical hollow rollers in general pure rolling contact 

  Abu Jadayil, Wisam (Wiley InterScience, 2008)

  Solid and hollow cylindrical rollers in pure rolling contact have been mod-elled. The two rollers are subjected to a combined normal and tangential loading. The tangential loading is one-third of the ...

• The Importance of Class Attendance and Cumulative GPA for Academic Success in Industrial Engineering Classes 

  Obeidat, Suleiman; Bashir, Adnan; Abu Jadayil, Wisam (ResearchGate, 2012-01)

  The affect of the attendance percentage, the overall GPA and the number of credit hours the student is enrolled in at specific semester on the grade attained in specific course has been studied. This study has been performed ...

• Studying the Effects of Varying the Pouring Rate on the Casting Defects Using Nondestructive Testing Techniques 

  Abu Jadayil, Wisam (JJMIE, 2011-12)

  In this paper Aluminum casting defects when the pouring rate is varying are investigated using green sand casting process by the aid of two nondestructive testing techniques. Ten Al casting samples have been prepared with ...

• Numerical prediction of optimum hollowness and material of hollow rollers under combined loading 

  Abu Jadayil, Wisam; Jaber, Nasser (ELSEVIER, 2009)

  Fatigue life investigations have been made for cylindrical hollow rollers in pure rolling contact. In addition to normal loading, the rollers have been subjected to tangential loading of 1/3rd the normal load value. ...

• Strengthening aluminum scrap by alloying with iron 

  Khraisat, Walid; Abu Jadayil, Wisam (JJMIE, 2010)

  The aim of this research is to experimentally study the effect of strengthening aluminum scrap by iron powder in order to achieve better mechanical properties. Aluminum scrap is melted in a heated furnace to form a melt ...

• First principles study of layered silicon carbide as anode in lithium ion battery 

  Fatima, Afrinish; Majid, Abdul; Haider, Sajjad; Akhtar, Muhammad Saeed; Alkhedher, Mohammad (John Wiley & Sons, Inc., 2022-02)

  In order to advance the current technology to cope with the future challenges, the search of anode materials beyond-graphite for use in lithium ion battery is in progress. First principles calculations were conducted to ...

• Empirical model for morphological evolution of crystallisation process using artificial neural networks 

  Nawash, Jalal M.; Al Khedher, Mohammad (Inderscience Publishers Ltd, 2011-01)

  Understanding and modelling crystals evolution is a major concern in crystallography science and engineering fields. A new approach for modelling nucleation patterns of ZnO-TeO2 crystallisation process is introduced. This ...

• Model-Based Robust Trajectory Control of 6-DOF Stewart Platform 

  Alkhedher, Mohammad (ResearchGate, 2013-12)

  A 6-DOF Stewart platform is designed and constructed as a parallel mechanism that consists of a rigid body moving plate, connected to a fixed base plate through six independent kinematics legs. The mechanism is implemented ...

• Solution of the Reactor Point Neutron Kinetic Equations with Temperature Feedback Control Using MATLAB-Simulink Toolbox 

  Ismail, Mai; Abulaban, Dana; Genco, Filippo; Alkhedher, Mohammad (ICTEA, 2017-03)

  Point kinetics equations are a system of stiff nonlinear ordinary equations. The solution of these equations provides a full understanding of neutron population’s behavior, which helps controlling the criticality of a ...

• U-shape Acoustic Liquid Densitometer 

  Younes, Tariq M.; AlKhedher, Mohammad; Shgier, Kalil Abu; ETAL.. (IIETA, 2019-04)

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