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Search Results: 1 - 10 of 105697 matches for " Yousif I. Al Mashhadany "
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Design and Implement of a Programmable Logic Controller (PLC) for Classical Control Laboratory  [PDF]
Yousif I. Al Mashhadany
Intelligent Control and Automation (ICA) , 2012, DOI: 10.4236/ica.2012.31006
Abstract: The design and implementation of a classical control system laboratory based on PLC control system is introduced in this paper. To design and implement the system, two parts must be produced. The first is software for PLC and the second is hardware for experiments related to the programs. The PLC control system used in the design is LS industrial system company GM7-DR40A 24/16 Digital I/O and single Analog I/O module, two photoelectric sensors from Atonic company’: the first with the model BR100-DDT-P, and the second BEN10M-TFR. An approximate sensor with 5-sides is detected, four of CMOS BCD-7-Segment driven by CD4511B, two relays: 2-poles and 3-poles, six voltages and an ammeter measurement, DC motor and 24 VDC power supply and many connecters and pinions. Satisfactory results are obtained by executing twenty four experiments for classical control theory that fulfill the requirements of control theory in undergraduate stage and replace the old experiments executed by PID controller where the practice system is implemented by PLC control now.
Design and Implementation of Electronic Control Trainer with PIC Microcontroller  [PDF]
Yousif I. Al Mashhadany
Intelligent Control and Automation (ICA) , 2012, DOI: 10.4236/ica.2012.33025
Abstract: This paper describes the implementation of a PIC microcontroller in a conventional laboratory-type electronic trainer. The work comprises software for the PIC and hardware for the software. The PIC controller uses an EasyPIC6 board and includes a PC-interfaced programmer for the PIC chip. It has many external modules: 128 × 64 graphic LCD display, 2 × 16 LCD display, 4 × 4 keypad, and port expander, all in the same bench. The trainer is capable of 36 experiments in logic/analogue electronic and control systems. A 5-sided approximate sensor, two photoelectric sensors (BR56-DDT-P and BEN9M-TFR), four CMOS, four BCD-7-segment driven by CD4511B, two relays (2-pole and 3-pole), six voltages, ammeter measurement, DC motor, and 24VDC power supply, connect through connectors and pinions. Results of all the experiments show the trainer satisfying requirements of undergraduate and postgraduate projects involving conventional electronic and classical control systems.
Design of a Pneumatic Robotic Arm for Solar Cell Tester System By using PLC controller
Yousif I. Al Mashhadany,Nasrudin Abd Rahim
International Journal of Computer Science Issues , 2013,
Abstract: Solar cell testers sort photovoltaic cells according to their electrical performance, tested under simulated sunlight. A variety of testers exist, but they all face a common challenge of handling cells that are very small and thin, which makes it difficult to transport the cells from the conveyer to the storage box. This paper presents a new design for a handling robot with vacuum end-effectors, which uses a PLC controller to govern the movement of the cells and the testing process. The design applies to solar cell testers for monocrystalline, polycrystalline, cadmium telluride (CdTe), and copper indium diselenide (CIS) cells. Each cell is tested for efficiency and categorized accordingly into four groups (A to D). A Virtual Reality (VR) model was built to simulate the system, keeping in mind real world constraints. Two photoelectric sensors were used to make detections for both the testing process and the robot movement. The PLC controller guides the trajectory of the robot according to the results of the efficiency testing. It was seen that the system worked very well, with the testing process and the robot movement interacting smoothly. The robot trajectory was seen to be highly accurate, and the pick and place operations were done with great precision.
Hybrid ANFIS Controller for 6-DOF Manipulator with 3D Model
Yousif Al Mashhadany
International Journal of Computers & Technology , 2013,
Abstract: This paper proposes a hybrid ANFIS (Adaptive Neuro-Fuzzy Inference System) controller with DMRAC (Direct Model Reference Adaptive Control) and mathematical modeling of the kinematic and dynamic solutions. The controller was hybrid with a classical controller, and was designed for a spherical-wristed 6-DOF elbow manipulator. The manipulator’s trajectory overshoot and settling time affect movement; their minimization was thus aimed for. The whole manipulator-controller system was modeled and simulated on MATLAB Version 2011a and Robotics Toolbox 9. To increase accuracy, the ANFIS controller was trained to use many paths in rules and memberships selection. A 3D display model for the manipulator was built in MATLAB. The simulation of the design had done by using the MATLAB/SIMULINK through connection the design with 3D model. Satisfactory results show the hybrid controller’s capacity for precision and speed, both of which are higher than a classical controller’s alone.
Design and Implementation of an Analogue Tester Board  [PDF]
Yousif Al Mashhadany, Semeh Jassam, Amead Sami, Hebaa Nassar
Circuits and Systems (CS) , 2012, DOI: 10.4236/cs.2012.33029
Abstract: The recent rapid development of electronics and continual increase of the complexity and variety of electronic circuits (chips, packets, micro- and embedded systems) creates a demand for viable test and diagnostic methods. These recent developments have led to a great deal of research interest in electronic diagnostic systems, especially of effective diagnosis methods of detection, localization and identification levels of hard (catastrophic) and soft (parametric) faults in analog circuits. At present, the majority of electronic devices (embedded systems) are designed based on digital circuits; however a lot of them also contain analog components that require more complicated testing techniques. This paper presents a novel, electronic components tester board with inside, outside of circuit under tested. The design is first simulated by using the electronic work-bench software Multisim 11 in order to obtain satisfactory theoretical results for each standalone element of the design. Thereafter, the design is practically implemented and experimentally verified to show agreement with the simulated results.
THEORETICAL ESTIMATION TO FLEXURAL STRENGTH OF ARALDITE COMPOSITE USED FOR MANUFACTURING ELECTRICAL CIRCUITS PLATES
Ali I. Al-Mosawi,Muslim M. Ali,Ali R. Yousif,Saad M. Hamza
Academic Research International , 2012,
Abstract: In the present research theoretical method was used to calculated flexural strength of composite material consist of araldite resin with different weight percentage (20%,40%,60%) from carbon fibers, where Ansys program version (11) was used to study the effect of differentreinforcing under variation loading on flexural strength of composite material. The standard specification (ASTM D790) was used to fabricant the test specimens in Ansys program .The theoretical results shows that high flexural strength value for araldite resin after reinforcingwith carbon fibers due to high elastic modulus for these fibers and this strength will increase with increasing percentage of fibers .
FLAMMABILITY OF ARALDITE BASED COMPOSITE MIXED WITH INORGANIC RETARDANTS
ALI I. AL-MOSAWI,JALEEL K. AHMED,ALI R. YOUSIF,ALI J. SALAMAN
International Journal of Engineering Science and Technology , 2012,
Abstract: Flammability characteristics of araldite based composite mixed with inorganic hybrid flame retardant represent zinc borate - antimony trioxide as a surface layer(4mm) thickness have been studied by thermal erosion test . Antimony trioxide was added to zinc borate with various amounts (10%,20% and 30%) to forming a hybrid flame retardant for enhance the action of this material to react flame . The result composite material was exposed to a direct flame generated from Oxyacetylene torch (3000oC) with different flame exposure intervals (10,20mm), and studies the range of resistance of retardant material layer to the flames and protected the substrate. The optimum results were with large percentage from protective layer which is zinc borate-30% antimony trioxide and large exposed distance.
STUDY THE EFFECT OF ANGLE DORSIFLEXION ON BENDING STRESS OF PROSTHETIC PYLON
MUSLIM M. ALI,ALI I. AL-MOSAWI,JABBAR H.MOHMMED,ALI R. YOUSIF
International Journal of Engineering Science and Technology , 2012,
Abstract: Affecting millions of people worldwide, artificial limbs and prosthetics are major topics in the field of bio mechatronics. This paper will examine and describe in effect of angle dorsiflexion on bending stress limb technology, in particular focusing on prosthetic pylon. The theoretical part includes; analytical solution to find dorsiflexion angle and bending stress. In the numerical method, the finite element is used by employing ANSYS package to find bending stress with angle dorsiflexion with gait cycle and Von Misses stresses. Thus the prosthetic pylon was angle dorsiflexionthe value of stress bending will be increased with increasing of angle dorsiflexion.
The hyperfine properties of a hydrogenated Fe/V superlattice
M. Elzain,M. Al-Barwani,A. Gismelseed,A. Al-Rawas,A. Yousif,H. Widatallah,K. Bouziane,I. Al-Omari
Physics , 2011, DOI: 10.1007/s10751-011-0485-3
Abstract: : We study the effect of hydrogen on the electronic, magnetic and hyperfine structures of an iron-vanadium superlattice consisting of three Fe monolayers and nine V monolayers. The contact charge density ({\rho}), the contact hyperfine field (Bhf) and the electronic field gradient (EFG) at the Fe sites for different H locations and H fillings are calculated using the first principle full-potential linear-augmented-plane-wave (FP-LAPW) method . It is found that sizeable changes in the hyperfine properties are obtained only when H is in the interface region.
Potentiality of Secondary Aquifers in Saudi Arabia: Evaluation of Groundwater Quality in Jubaila Limestone  [PDF]
Mohammed Tahir Hussein, Mazin. M. Al Yousif, Hussein S. Awad
International Journal of Geosciences (IJG) , 2012, DOI: 10.4236/ijg.2012.31009
Abstract: Groundwater scarcity in arid regions may hinder development plans and cause many inconveniences for the population and authorities. Saudi Arabia has limited groundwater resources stored in the sedimentary sequence of the Arabian Shelf. Some of these resources were classified as major aquifers, secondary and minor aquifers, and some were considered as aquicludes. The Jubaila Limestone is one of the secondary aquifers of Saudi Arabia. The main purpose of this paper is to evaluate the groundwater resources of the Jubaila Limestone in Riyadh area, with emphasis on groundwater quality. Groundwater was found to occur in fractures and within solution openings of the Jubaila Limestone at depths which range between 19 and 210 m. The transmissivity value was 1.7 × 10–3 to 7.2 × 10–3 m2/s; the storage coefficient was of 1.3 × 10–4. The electrical conductivity for collected water samples ranged between 831 and 7670 μS/cm. The major ionic relationships were Na > Ca > Mg and SO4Cl > HCO3. The groundwater evolves from NaCl dominated at the southern end of the study area, into Ca, MgSO4 water in the north. The main chemical process responsible of this variation was found to be dissolution of anhydrite and gypsum. The groundwater was not found suitable for drinking purposes but can be used by livestock and for some agricultural purposes.
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