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Design of a High Gain & Ultra Wideband Microstrip Array Antenna for Avalanche Radar
Research Output | Dar Al-hikmah Library | IIUM Only

This paper presents the design and construction of a microstrip array antenna operating at 5.3 GHz, to be used as an avalanche sensor in avalanche measurement. The advantage of the antenna is it can achieve a high gain of 15.6 dB with bandwidth of 90%. This was achieved by separating the feed network from the main patches; and increasing the antenn

The Effective Use of Geographic Information System (Gis) in the Planning Departments, Kuala Lumpur City Hall (Klch)
Research Output | Dar Al-hikmah Library | IIUM Only

The paper presents the important factors associated with the effective use of GIS at the Department of Urban Planning (DUP) and the Master Plan Department (MPD) of the Kuala Lumpur City Hall (KLCH) Malaysia. The development of GIS has progressed dramatically in recent years and its use has proliferated in government planning departments in Malaysia

Kenaf as Natural Resource for Lactic Acid Production
Research Output | Dar Al-hikmah Library | IIUM Only

Kenaf biomass indicates promising choices to produce lactic acid via fermentation by Rhizopus oryzae. The pre- treatment process was done on kenaf biomass with dilute sulphuric acid (H2SO4) to hydrolyze the cellulose content in it. The step was then continued with the fermentation process in shake flask which was at 25 oC at 150 rpm, 25 oC at 200 r

Pharmacognostical Study on Piper Betle L. and Ficus Deltoidea Jack
Research Output | Dar Al-hikmah Library | IIUM Only

This study involved the pharmacognostical evaluation of sirih melayu (Piper beetle L.) and a variety of mas cotek (Ficus deltoidea var. kuntsleri (King) Corner. The pharmacognostical approaches used include macroscopical and microscopical examination of the herbs. A method combining thin layer chromatography (TLC) analysis and bioautographic assay

Molecular Cloning and Production of Recombinant Phytase from Bacillus Subtilis Asuia243 in Pichia Pastoris
Research Output | Dar Al-hikmah Library | IIUM Only

Phytase gene obtained from Bacillus subtilis ASUIA243 was cloned into a medium vector and transformed into E. coli. Restriction enzyme digestion was conducted to get blunt-ended phytase gene and ligated into the Pichia expression vector, pPICZαA. The recombinant vector, pPICZαA-243HPp was then linearized with PmeI and transformed into P. pastoris

Phytochemicals Screening and Antioxidant Activities of Malaysian Donax Grandis Extracts
Research Output | Dar Al-hikmah Library | IIUM Only

Common Donax (Donax grandis) is in a family of marantaceae and widely distributed in South East Asia region. Phytochemical constituents in different parts of the plant (leaves, fruits, stems and roots) were extracted by soxhlet extractions using hexane,dichloromethane, methanol and water. Methanolic extract showed the highest yield of crude extract

Investigation of Microholes Produced by Focused Ion Beam Micromachining
Research Output | Dar Al-hikmah Library | IIUM Only

This paper discusses the microfabrication of microholes using focused ion beam and investigation of geometrical integrity of microholes. Different combination of aperture size, probe current, acceleration voltage was applied for micromachining and optimized based on taper angle. Microholes with 3.0 μm of diameter were milled according to the optim

Contributions of al-Razi on Alchemy in Terms of Metal and Substance
Research Output | Dar Al-hikmah Library | IIUM Only

Ancient Greek philosophers make a great contribution to the history of chemistry and the knowledge has been passed into the domain of the Islamic scholars. During that time, the Greeks did not yet make any distinction between alchemy and any ofthe other natural sciences, instead merging it together with their philosophical and religious beliefs. Ne

Ibn al-Nafis Contribution in Urology Progress Practices
Research Output | Dar Al-hikmah Library | IIUM Only

The objective of this chapter is to explain about the progression of urology that had been made by Ibn al-Nafis, one of the well-known Muslim physicians. Urology is another branch of medicine that based on the treatment of disorders and diseases related to male and female genito-urinary organs including the kidney, ureters, bladder, prostate and ge

al-Biruni's Views on the Discovery of the Spherical Earth
Research Output | Dar Al-hikmah Library | IIUM Only

The objective of this chapter is to explain the concept of spherical earth and the data used is collected from reliable sources. The technique of Eratosthenes was used to measure the circumference of the earth, 200 years before Al Biruni. However, this chapter investigates the method used by AI-Biruni to find the earth's circumference and this

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