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Applications of polymer-based nanocomposites continue to rise because of their special properties such as lightweight, low cost, and durability. Among the most important applications is the thermal management of high density electronics which requires effective dissipation of internally generated heat. This paper presents our experimental results on the influence of graphene, multi-walled carbon nanotubes...
Gantry Crane System is widely used for material transportation. In this system, uncontrolled oscillation always be found during the moving process. This problem may extend the carrying time and cause safety problem. In this paper, it presents a method for controlling a Gantry Crane System based on Proportional-Integral-Derivative (PID) controller strategy. A combination of the Priority Fitness Scheme...
The main objective of this paper is to perform a robust controller design using discrete-time sliding mode control (DSMC). In the control scheme, two-degree-of-freedom (2-DOF) control strategy turns the DSMC, which generally utilized state feedback into output feedback controller. The designed control scheme is considered with feedback and feedforward combination by implementing the zero phase error...
This paper presents a combination of the Priority Fitness Scheme (PFS) and optimization techniques to find the optimal performances of the Gantry Crane System. Control algorithm that based on the PFS will be designed and used as fitness function in PSO and BPSO. PFS are prioritized based on Steady State Error (SSE), Overshoot (OS) and Settling Time (Ts) according to the requirements. The system model...
For the purpose of high quality output voltage generation of a stand-alone wind turbine installation, multilevel H-bridge inverter is more suitable then the conventional inverters. This paper presents the modeling and simulation of a stand-alone wind turbine installation feeding a three-cascaded H-bridge inverter using the symmetrical control technique. A performance analysis of the impact of the...
Coupled Tank System is one of the widely used applications in industries. Like other process control, it require suitable controller to obtain the good system performances. Hence, this paper presents the study of Coupled Tank System using LQR and PID controller. Both controller parameters are tuned using Single-Objective Particle Swarm Optimization (PSO). The performance of the system is compared...
Electro-hydraulic actuator (EHA) system has become one of the most prominent actuator in the past decades. Therefore, it is crucial to attain structural insight into the characteristics of the particular system. This paper presents system identification of EHA system using non-recursive or offline technique where the mathematical model is determined first by considering fixed supply pressure and load...
In this modern era, independent mobility for blind and partially sighted people is an important objective to achieve. There are many assistive way to help visually impaired people namely, Guide Dog, White Cane as well as the tactile paving which is a very common assistive tool throughout the world, support the visually disable person walk in the correct path from one place to another. Therefore, RFID...
The selection of distance measurement sensor in order to apply it in any application is very important to avoid any invalid results in experimental results. This paper discussed a performances study of distance measurement sensor such as Sharp GP2D120 IR Sensor and Parallax's PING))) ultrasonic sensor which usually used in robotic applications by using various object's conditions and object's properties...
This paper explores the feasibility of a high temperature chlorination roast for selectively remove Zn from steelmaking dust. Experiments using ammonium chloride as the chlorination reagent indicate promising removal of up to 99% Zn. However, up to 30% of the Fe content of the dust is concomitantly recovered with the Zn, this is an undesirable feature in the process. This paper examines optimisation...
This paper derives explicit closed-form expressions for the joint/marginal probability density functions of the uplink/downlink multipathspsila time-of-arrival (TOA) and azimuth angle-of-arrival (AOA) in a wireless-communication fading channel. These models assume that the scatterers lie within a hollow-disc and an elliptical space, respectively. These probability density functions (pdf) provide insight...
In this paper, we estimate the azimuth, the elevation and the time of arrival (TOA) of point sources by using the multiple signal classification (MUSIC) algorithm. The estimated channel matrix is used to jointly estimate the azimuth, elevation and TOA. The performance of the proposed algorithm is then evaluated in terms of mean square error of the azimuth, elevation and the TOA estimates. The obtained...
In this paper, we evaluate the performance of the JADE-MUSIC (joint angle and delay estimation) algorithm in the presence of point sources. The observed snapshots are used to estimate the space-time channel matrix. The estimated channel matrix is then used to jointly estimate the direction of arrival and the time of arrival. The performance of the JADE-MUSIC algorithm is then evaluated in terms of...
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