Ultra-Wide Band (UWB) Ice Cream Cone antenna for communication system

The objectives of this paper are to design, fabricate and analyze UWB Ice Cream Cone Antenna. This antenna was fabricated on FR4 substrate. The effect of varying parameter for length of rectangular is studied. This antenna occupies the entire 3.1 GHz to 10.6 GHz spectrum band. The designs are simulated using CST Microwave Studio Simulation and the measurement are successfully achieves UWB spectrum band requirement. The proposed antenna suggested that the return loss must be less than -10 dB and a VSWR of less than 2 throughout the entire band with a lightweight planar profile and omnidirectional radiation pattern. The UWB Ice Cream Cone Antenna is designed, fabricated, measured and managed to cover UWB bandwidth from 3.1-10.1 GHz with the VSWR between 1.18 - 1.7 with a small size of 40 x 25 mm2 . The sizes of UWB communication devices can be reduced by using the Ice Cream Cone antenna. In the future, the low loss substrates can be used in order to increase the Return Loss of the antenna at higher frequencies for wideband applications

Wearable health monitoring system (WHMS) using wireless sensor network

The development in technologies has taken place in many sectors such as the Wearable Health Monitoring System (WHMS). It has been a remarkable revolution by the emerging of the Wireless Sensor Network (WSN) in performing the monitoring and recording of healthcare. Thus, the wearable wireless sensor based systems are intended to provide better personal health management, ubiquitous monitoring health condition, better quality treatment and care, along with to allow efficient circuit integrations, reliable vital signal measurements, low operation costs and optimum power usage. This paper therefore attempts to comprehensively review the basic concepts of Wearable Health Monitoring System (WHMS) using Wireless Sensor Network (WSN). A comparative study was carried out in various healthcare monitoring systems, which adapted different wireless technology. In addition, the challenges and limitations of WHMS systems are identified. The implication of this study is to minimize the challenges and limitations in the design, development and application of a wearable wireless sensor based systems. It is expected in the future that the information shared in this paper can serve similar scientific field and improve the system features

Route Planning Analysis In Holes Drilling Process Using Magnetic Optimization Algorithm For Electronic Manufacturing Sector

Electronic manufacturing sector uses computer numerical controlled machines for drilling holes. Most of the computer numerical controlled machines used nearest neighbour algorithm to plan the route for the drill bit to travel. Based on this motivation, this paper proposes an approach which is based on the experimentation of Magnetic Optimization Algorithm. In this implementation, each magnetic agent or particle in Magnetic Optimization Algorithm represents a candidate solution of the problem. The magnitude of the magnetic force between these particles is inversely proportional to the distance calculated by the solution they represented. Particles with greater magnetic force will attract other particles with relatively smaller magnetic force, towards it. The process is repeated until the stopping condition meets and the solution with lowest distance is taken as the best-found solution. Result obtained from the case study shows that the proposed approach managed to find the optimal solution. With this method, electronics manufacturing sector can optimize the drilling process hence will increase the productivity of the manufacturer. This study can be extended further by tuning the parameters of MOA in order to enhance the drilling route process

Influencing factors in non-landed residential property facilities for management

It has been found that the cost for housing maintenance especially for non-landed residential properties is relatively high due to poor maintenance practice. Management has made this requires payment of the occupants to ensure the building can work to meet the standards have been outlined. This scenario makes the most of the residents have often complained rise residential service charge is too high without being aware of the use and flow of the money.This paper aims to explore the facilities and service prioritization in maintenance and to analyse the influencing factors in facilities and services for non-landed residential properties. A quantitative approach was adopted that sought to gather factual data. The research first identified the critical factors through a literature review. A total of sixty questionnaires were then distributed to relevant respondents like building managers or supervisors. In total 40 completed questionnaires formed a database for descriptive and frequency analysis. The research concluded that seven components of the priorization for the facilities and service were management, utilities, soft services, hard services, income, insurance and exceptional expenditure. Meanwhile, it was found that several of subs attributes as the most influencing factors in facilities and services for this type of building. Measure to minimize the housing maintenance cost were obtained, such as participation of property managers in housing management works and allows their acceptance of a lower standard expectation