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An Improved itu-R Rain Attenuation Prediction Model Over Terrestrial Microwave Links in Tropical Region
Research Output | Dar Al-hikmah Library | IIUM Only

An improved approach of predicting rain attenuation cumulative distribution (CD) over terrestrial microwave links operating in tropical regions is presented in this article. The proposed method offers a better extrapolation approach for determining the values of rain attenuation at different exceedance probability from the measured attenuation at 0

Design of Microstrip Patch Antenna Using Slotted Partial Ground and Addition of Stairs and Stubs for Uwb Application
Research Output | Dar Al-hikmah Library | IIUM Only

This paper presents the design with optimum geometry of a novel UWB rectangular patch antenna. A simple narrowband patch antenna is designed before proceeding to the geometry of UWB antenna. A special configuration of patch antenna with slotted partial ground and addition of stairs and stubs was designed and optimized using CST Microwave Studio (CS

Performance Analyses of a fixed-Pitch straight-Bladed Vawt with Selected Low Reynolds Number Airfoils
Research Output | Dar Al-hikmah Library | IIUM Only

One of the most important factors for cost-effective SB-VAWT product is the selection of an appropriate airfoil to achieve desired aerodynamic performance and to optimise the overall dimensions of the SB-VAWT. Design changes related to airfoil also have the potential for increasing the cost effectiveness of SB-VAWTs. This research aims to perform a

Developing a Finite Difference Time Domain (Fdtd) Software for Solving Large Electromagnetic Problems
Research Output | Dar Al-hikmah Library | IIUM Only

This research aims to develop a novel domain decomposition finite-difference time domain technique (FDTD) for solving large electromagnetic radiation and scattering problems. Modifications have been made to the conventional FDTD technique so that serial subdomains can be simulated. The computational domain is divided into manageable, moderate-size

Analyses of worst-Month Rain Fade Statistics for ku-Band (26ghz) in the Tropics
Research Output | Dar Al-hikmah Library | IIUM Only

ITU proposes that the fraction of time during which a pre-selected threshold is exceeded in the worst-month within a year is referred to as “the annual worst-month time fraction of excess”. This relates directly to situation where accumulation of outages at a specific threshold in one specific month has the worse effect on the transmission link

Environmental Attitude: Values on Urban Wildlife a Case Study of Kuala Lumpur Urban Parks
Research Output | Dar Al-hikmah Library | IIUM Only

‘Urban biodiversity and wildlife management’ has been accepted as being an important urban ecological component in an urban environment. The improvement of urban plans and landscape fabric can potentially advance the urban ecological environment. Thus, many local authorities aim to outline green strategies in their local plans to improve the ci

Urban Land Use Spectral Using High Resolution Imagery and Gis Approach in Sustaining Urban Planning Spatial Databases
Research Output | Dar Al-hikmah Library | IIUM Only

Remote sensing technology is useful for urban planning due to its capability in examining detailed spectral characteristic of urban land uses. This study attempts to review a relevant studied have been done in identified an appropriate spectral for urban land use using high resolution remote sensing images and GIS approach. The detailed spectral fo

Esterification of Sludge Palm Oil Using Trifluoromethanesulfonic Acid for Preparation of Biodiesel Fuel
Research Output | Dar Al-hikmah Library | IIUM Only

Trifluoromethanesulfonic acid (TFMSA) was used to reduce the high free fatty acids (FFA) content in sludge palm oil (SPO). The FFA content of SPO was converted to fatty acid methyl ester (FAME) via esterification reaction. The treated sludge palm oil was used as a raw material for biodiesel production by transesterification process. Several working

Are Deep Eutectic Solvents Benign or Toxic?
Research Output | Dar Al-hikmah Library | IIUM Only

In continuation of investigation for environmentally benign protocol for new solvents termed deep eutectic solvents (DESs), it is herein reported results concerning the toxicity and cytotoxicity of choline chloride (ChCl) based DESs with four hydrogen bond donors including glycerine, ethylene glycol, triethylene glycol and urea. The toxicity was in

The Use of Nutrition Label on Food Purchasing Decision Among University Students in Kuantan, Malaysia
Research Output | Dar Al-hikmah Library | IIUM Only

Nutrition label provides nutrition status of the pre-packaged foods and is very useful for people when making decision for healthy foods. However, there is a lack of awareness among Malaysians regarding the use of nutrition label when purchasing foods. Hence, a cross sectional study among tertiary students (IIUM) was conducted. The aim of this stud

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KCDIOM

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