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Microencapsulation technology had been widely used in biological study, drug delivery, cosmetic and also food industry. Previous methods developed for microencapsulation is complex in terms of their design and handling. A simple micro extruder device with vibration mode was developed to microencapsulate HaCaT cells in calcium alginate capsules at 10 to 60 Hz. The microencapsulated cells proliferated...
This paper discuss on developing a system called Entreportfolio as an effort to help entrepreneurs create industry networks quickly and easily via online system. The target users are mainly entrepreneurs including startup, SME, agencies and researcher. By collecting entrepreneurs profile in a system and connects entrepreneurial agencies, SMEs and researcher under one stop center, this system is linked...
This paper investigates the likely power quality impacts of integrating large-scale plug-in hybrid electric vehicles (PHEVs) in power distribution networks. The PHEV is modelled as a current harmonic source by using the Open-source Distribution System Simulator (OpenDSS) and MATLAB software. Time series simulations were conducted to investigate some power quality issues such as voltage profile, line...
Era of human pull and pedal drive rickshaw stands for long time and seek technology intervention to drive motor powered, fueled by solar energy rickshaw The evolution of man to machine age represents an expansion of human capacities. Enhanced human control over environment, through the ability to elicit from instruments of production, has improved range and exactitude of response. It is in the nature...
Emergency department is the frontline and critical service of a hospital which provides wide ranges of medical services which includes diagnostic, resuscitation and stabilization components to save life. Triage is a process that assists assistant medical officer to justify condition of patient and arrange appropriate treatment for them. According to The Policy of Emergency Medicine and Trauma Service...
In an urban environment, the effect of vehicular traffic on propagation loss must be considered for accurate predictions. In contrast to the existing empirical approach that models the vehicular traffic as rising of the reflection surface, this paper presents a stochastic approach for realistic road traffic modeling. The proposed model uses traffic density as an input to predict propagation loss in...
There has been a great deal of research into the considerable challenge of managing of traffic at road junctions; its application to vehicular ad hoc network (VANET) has proved to be of great interest in the developed world. Dynamic topology is one of the vital challenges facing VANET; as a result, routing of packets to their destination successfully and efficiently is a non-simplistic undertaking...
Atmospheric turbulence plays a crucial role in determining the propagation of light in free space optical communication (FSO) especially during the process of data transmission. The interaction that exist in between turbulence and light propagation leads to random phase and fluctuation of scintillation in free space. In this paper, we compare the signal-to-noise ratio (SNR) and bit error rate (BER)...
Aiming to achieve Ultra Wideband (UWB) performance, this paper presents an improvement of the square-shaped phase shifter design, which covers from 2.8 GHz to 10.6 GHz by implementing step impedances in order to improve the impedance matching of the phase shifter, whilst leads to better scattering parameter results. The phase shifter design is formed by using multilayer technique where 3 layers of...
This paper presents the effect of temperature to the etch rate of nitride and oxide layers in Buffered Oxide Etch (BOE) solution. Either nitride or oxide layer is commonly used in the semiconductor fabrication process as a mask for the next wet etching process. A well-defined frame structure and reduced etching time will increase the productivity of the fabrication process. The approach starts with...
Transmission line lightning failures threaten safe and reliable operation of power grid. Guangzhou is one of areas with the strongest lightning activities in China. Lightning protection in Guangzhou power grid has reference role to construction and operation of power grid in other places with frequent lighting in China. Therefore, selection of key parameters in leader progression model is studied...
Tangent Delta, also called loss angle or dissipation factor (δ) is a measurement technique to determine the quality of cable insulation. It utilizes the phase shifts caused by the displacement current induced due to the existence of impurities in the insulation or stress on the cable. More than 50% of the underground cable breakdown is due to cable joint failures and also aged bulk cable failures...
This paper presents a new nonintrusive load identification method to disaggregate the target load in a typical commercial building. For this purpose, experiments were carried out in the laboratory implementing real load switching activity and power measurements were made with a smart meter. Nonintrusive load monitoring is performed by analysing the power signals obtained from the smart meter and detecting...
This paper investigates an optical performance of the optical interconnect (OI) link using the SOI waveguide. In the transmitter part, the spectrum profile was investigated on the CW source and MZ modulator. while in the receiver part, the receiver sensitivity of the photodetector was measured. The delay of the optical waveguide was examined using the effective refractive index value. In order to...
In this paper, the performance of Cu2ZnSnS4 (CZTS) thin film solar cell has been analysed numerically using SCAPS-1D. Firstly, the thickness, carrier density and defect density of CZTS absorber layer and then the thickness and carrier density of CdS buffer layer was varied to observe their effect on the cell performance. From the simulated results, the optimal thickness of 3000 nm, carrier density...
Total Electron Content (TEC) is the main parameter in the ionosphere that has significant effect on the propagation of radio waves causing delay errors on the GPS signals. Therefore, identifying an effective forecasting method is important to reduce the GPS position error. This research aimed to use the statistical Holt-Winter method to forecast the ionospheric vertical TEC (VTEC) over Malaysia. The...
The purpose of this work was to examine factors that are believed to affect the technology transfer (TT) process in the field of information and communication industry (ICT). The aim is to investigate the factors that describe the TT process of embracing of international technology by ICT projects in Libya. ICT sector in Libya is reliant on external technology imported into the country by multinational...
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