Universiti Teknikal Malaysia Melaka: UTeM Open Journal System
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Green Technology Policy as a Driver for Change Sustainability Practices among the Community in Melaka
Full text linkThe suggestion for people to change their minds towards a developed society in line with the idea of implementing green technology urban development is a necessity to achieve sustainable development. Therefore, this study attempts to analyze the issues related to the need to change society’s practices so that society is able to face the cultural environment of society based on green technology towards sustainability. This study uses a quantitative method that is using by a questionnaire instrument involving a total of 308 respondents. The results of the analysis found that those living in areas involved with green technology were higher their awareness towards green lifestyle compared to communities outside the green technology declaration area. In general, there are various challenges in the implementation of green technology urban development in Melaka, especially in changing the lifestyle of the community towards the ideology of sustainable development based on green technology
Enhancing the Energy Efficiency of Solar Panel Using Water: A Case Study in Sudan
No full textOperating temperature has been considered a major factor that affects solar panel efficiency. The efficiency of the solar panel is influenced either by increasing or decreasing the panel temperature. The aim of this paper is to design a cooling system to improve the efficiency of the solar system by reducing the temperature of the panel. In this design, additional waterproof layer is added under the button of solar panel to provide more protection from any water leakage, then a region filled with water is added at the back surface of the panel to work as a cooling medium. This region of water exchanges heat between the solar panel and the water layer .The cooling system fixed on the bottom of the panel is almost about 5mm from the back surface. The liquid was fed from the top hole of the system, so if water is inserted from the top hole it can come out of the bottom hole, when there is a need to empty the water. The design ensured that there is no leakage of water at the sides so that the water could not reach the surface of the board. Water tube is connected to the top and bottom of the hole with two valves to control the inlet and outlet of water. The measured parameters of radiation, voltage and current which obtained at different times through the day were used to calculate the efficiency of the panel after and before using this system. The overall experiment results show that when the proposed cooling system was used, the average efficiency of voltage in the solar panel increased approximately by 1.2% and the average efficiency of current in the solar panel increased by 5%
Review on IoT Security and Challenge in Industry 4.0
Full text linkWireless networks are very exposed to the danger of security. The majority of in military, commercial, health, retail, and transportation wireless communication network is used. These systems utilize networks that are wired, mobile, or adhoc. The Internet of Things (IoT) was quite attractive. The future of the Internet is regarded by IoT. In the future, IoT plays an important part and affects our way of life, norms, and business methods. IoT use is predicted to expand quickly in the next years in many applications. The IoT provides for the connection and information sharing of billions of equipment, people, and services. As IoT devices are being used more widely, several security threats are occurring in the IoT networks. In order to provide privacy, authentication, access, and integrity control, it is crucial to implement efficient protocols for the security of IoT networks and privacy among others. In addition, user privacy in the IoT environment is becoming critical since much personal information is provided and distributed among related items. It is, therefore, necessary to guarantee that personal data are protected and controlled from cloud events. The presentation addresses security and privacy dangers and concerns coming out of IoT services and presents ways to the industrial problem of security and privacy. In this article, a study on security and problems in IoT networks are discussed
Enhancement of Pulley and Belt Mechanism using Finite Element Analysis
Full text linkThe pulley and belt mechanism has been developed to supply the needs of power transmission. This mechanism and especially the V-belt drive mechanism is widely used in the agricultural industry, however, it is facing numerous challenges due to the heat generated in the belt during its operation. The rate of hysteresis loss induced by the frequent use of the belt is important which made it a major concern for engineers. The heat produced on the contact surface during the process under the effect of friction is transformed into heat, which leads to the degradation of the microscopic polymer molecular chains and the fast aging of the rubber part, therefore it adversely impacts the durability of the V-belt. To tackle this encountering problem, we have conducted a thermal study using finite element simulations on a pulley and belt mechanism. We sight to improve the design by adding the so-called cooling fins to the pulley, mainly to increase the heat transfer area and reduce the temperature of the pulley, hence improve its efficiency along the service life. And by examining these new models using finite element methods (FEM), the results show a decreasing in the temperature, therefore increasing in the lifetime of the belt is expected and reduce the problems which occur in high temperature
Evaluating of Short-Term Electrical Load Forecasting System Using Fuzzy Logic Control: A Study Case in Sudan
Full text linkGeneration, Transmission and Distribution sections of the electric power grid system are a function of electric load forecasting. This is because, many benefits can be obtained by using load forecasting, such as reduction in the generating cost and increasing the reliability of the power system due to improving energy management. The objective of this study is therefore to design a fuzzy logic system for short-term electric load forecasting to reduce power losses particularly in times where the electric power generation is higher than the electric load demand. In this study, the independent variables that were applied to the developed short-term load forecasting Simulink model were time, temperature, and similar previous electric day load demand, and they were collected from the specific area load control center in Sudan. Fuzzy rules were prepared using Mamdani implication. The obtained fuzzy logic results were compared with the actual load demand, and it was found that there was an error that ranged between 12% and 0.09%
Trajectory Generation for Hip Rehabilitation Exoskeleton Using Trajectory
Full text linkA walking rehabilitation exoskeleton robot is used for patient having walking difficulty to undergo walking therapy by wearing it on his lower body. If the rehabilitation is done directly by using predefined normal gait, the patient can feel discomfort and may lead to painful therapy. This can also endangered the patient limb under therapy. Due to that reason, the patient will be discouraged and unmotivated to proceed with the therapy. This paper presents the hip trajectory generation by utilizing the patient current trajectory that morphs into the target trajectory by generating a sequence of gradually changing hip trajectories
Design of Wireless Control Mixing System of Liquids using Raspberry Pi Device
Full text linkThe use of automation technology in the field of mixing liquids assists to reduceerrors in this process which improved the quality of products. Liquid mixing machines often require a number of workers in order to operate the machines which increases the risk to them. This paper proposes wireless design for mixing three different liquids using raspberry pi technology. The design aims to provide lower risk rates, lower cost and high accuracy. The mechanism of mixing the three liquids and filling the tanks is done automatically using raspberry pi and ultrasonic sensors. Users must have to login with the correct IP address and password in order to access the application using a Wi-Fi connection. The system consists of three sub tanks filling the main tank in specifec ratio for each one. The programming of this implemention is accompleshed using python language. The experimental results have proven that the system works successfully and it can be applied in a real environment
Parking Lot Occupancy Detection Using Image Overlay And Intersection Technique With Harris Corner Detector
Full text linkParking lots are very important to cities with large number of populations especially for countries that do not have many public transports which lead to the increase in number of vehicles on the road. Locating for an empty parking lot can be time consuming and may even lead serious problems such as traffic congestion. Even though there a lot of hardware-based parking monitoring systems have been achieved success in the market, the maintenance cost is still expensive. Hence, many researchers have started to explore other alternatives such as vision-based approach. Current methodology using Harris Corner Detector for parking lot detection generates the corner data from vehicle as well as any other unwanted surrounding corner data such as partially shaded shadows which are non-vehicle data that will contribute as noise and impact the classification accuracy. By implementing image overlay with Harris Corner Detector, the strongest corner data around the vehicle region will be generated since the image overlay shape is added using the grayscale intensity at range zero which is black and thus, other unwanted objects beyond the image overlay can be excluded easily by analyzing the strongest corner data only. The datasets used in this research is the video source which consists of full day outdoor parking lot images in time-lapsed produced by Cambridge Consultants in year 2017. Image overlay method improved the existing Harris Corner Detector implementation accuracy by 19.79% and proven better accuracy compared to image thresholding method in partially shaded outdoor parking lot environment by 1.04% and hence, both can be used as a hybrid system
Performance Investigation of Binary Counter with Different Clock Gating Networks
No full textThree different clock gating network (CGN) have been used in this work to study their impact on the performance of binary counter. Different NMOS and PMOS transistor arrangements were used as CGN network. Its effect on the design of a synchronous binary counter i.e. 4-bit SBC-1T, -2T and -4T was observed to compute some of the essential performance parameters such as delay, slack time, maximum operating frequency, power dissipation, PDP and occupied area. The proposed counter design has been extended for 8 and 16-bit also. For synthesizing (TSMC 180-nm CMOS process) the proposed design, Leonardo Spectrum Tool provided by mentor Graphics has been used. For FPGA synthesis (Spartan-3E) of the proposed design, the ISE design suite provided by Xilinx has been used
Solutions and Energy Management Optimization for Hybrid Renewable Energy System at Babylon University, Engineering College, Iraq
No full textThe design of hybrid energy systems requires sustainable resources and main components such as energy management. The Iraqi government has advised educational facilities, such as universities, to use renewable energy resources to reduce electricity consumption because Iraqi energy supply systems depend mainly on fossil fuel. The loads in Iraq have expanded during the last few years while generation stations and networks have remained the same. Therefore, hybrid optimization of multiple energy resource software has been used to investigate possible solutions that can be applied to generate the required power for Babylon University, Engineering College. Eight on-grid cases were examined for producing the required power. Grid-WTBT(Case4) which has the lowest cost of energy (COE) and net present cost (NPC) value with 51.8% renewable energy penetration was found to be the most feasible. The results showed that the Grid (1,964,518 kwh/y), NWT (50), NBT (4), Nconv (2), COE (0.0677 US3.19 million), and IC (US$ 853,031). Moreover, the energy requirements of AC primary load in this college can be satisfied by using this system