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Combined Effect of Nozzle Pressure Ratio and Screech Prone Supersonic Mach Number in a Suddenly Expanded Flow
Research Output | Dar Al-hikmah Library | IIUM Only

This paper presents the results of an experimental study to evaluate the effectiveness of the micro jets to control the base pressure in a suddenly expanded flow at supersonic Mach numbers. Four micro jets of 1mm orifice diameter located at 90 intervals along a pitch circle diameter of 1.3 times the nozzle exit diameter in the base region were e

Channeled Coolant Plate: a New Method to Enhance Freshwater Production from an Air Gap Membrane Distillation (Agmd) Desalination Unit
Research Output | Dar Al-hikmah Library | IIUM Only

Air gap membrane distillation (AGMD) desalination process incorporates phase change and transport of vapor from saline water through a hydrophobic membrane and an air gap due to difference in vapor pressure across the membrane and a coolant plate. In this study, an attempt was made to observe the effect of a channeled coolant plate instead of a fla

Effect of Azo Dye on Ammonium Oxidation Process and ammonia-Oxidizing Bacteria (Aob) in Soil
Research Output | Dar Al-hikmah Library | IIUM Only

Ammonia-oxidizing bacteria (AOB) play a key role in the production of nitrate-N (NO3 �-N) in terrestrial ecosystems. A study was planned with the aim of assessing the effect of azo dyes released by textile and dyestuff industries on the NH4 +-N oxidation process in soil. The data was analyzed statistically using a two factorial completely randomi

A Compact Wideband Patch Antenna for Ultra High Frequency RFID Tag
Research Output | Dar Al-hikmah Library | IIUM Only

A compact and simple patch antenna for ultra high frequency band is current demand for RFID tag. By em- bedding a pair of symmetrical key-shaped slot near the non-radiating edge of the rectangular patch, a new adjacent resonant mode close to the fundamental mode is excited to form a wide half-power impedance bandwidth (Return loss ≥ 3 dB) of 122

Chemical Composition and Antibacterial Activity of Essential Oils from Three Aromatic Plants of the Zingiberaceae Family in Malaysia
Research Output | Dar Al-hikmah Library | IIUM Only

The essential oils of Boesenbergia rotunda (Temu Kunci), Curcuma mangga (Temu Pauh) and Kaempferia galanga (Cekur) were extracted using steam distillation, and the main constituents of the essential oils were analysed using gas chromatography-mass spectrometry (GC-MS). More than 10 constituents were identified in each essential oil. The main compou

Design and Development of a Versatile Ice Clamping System
Research Output | Dar Al-hikmah Library | IIUM Only

In manufacturing industries, workpiece clamping is one of the basic requirement prior to machining process as the clamping system is responsible to maintain the workpiece rigidity and withstand the cutting force generated from the machining process. Besides, Clamping device is one of the reasons which influence the surface integrity of a part. Clam

Inspiration and Insinuation Influences on Human Thinking and Behavior: a Psychoanalytical, Psychodynamic, and Cognitive Phenomenon
Research Output | Dar Al-hikmah Library | IIUM Only

Is insinuation one of the most influential phenomena in the early and continuous development of human behavior? Yes. Does previous scientific study give ample of time to understand unconsciousness and its manifestation from this point of view? No. As we have demonstrated in the following pages, insinuation does hold a high view in the divine script

Barriers Hindering Tafakkur (Thinking) from an Islamic Perspective
Research Output | Dar Al-hikmah Library | IIUM Only

Islam is a comprehensive and unique religion that captures all spheres of human endeavours. It does not only explain the creation of man but it captures the various concepts and compositions of man such as soul, hearth, thinking etc. Little attention of recent studies on Tafakkur explicitly elaborates on the vitality of barriers and hindrances that

A Preliminary Study of Sustainable Transport Indicators in Malaysia: the Case Study of Klang Valley Public Transportation
Research Output | Dar Al-hikmah Library | IIUM Only

This research centres around the exploration of applicability and transferability of some international/global sustainable transport indicators in an important city region in Malaysia, namely Klang Valley. The review of literature highlighted several important measures to identify, determine and select the relevant sustainable transportation indica

Design of a Wideband Inductively Coupled Loop Feed Patch Antenna for Uhf RFID Tag
Research Output | Dar Al-hikmah Library | IIUM Only

A planar wideband patch antenna for ultra-high frequency (UHF) radio frequ ency identification (RFID) tag for metallic applications is presented in this research work. Three different shape patches ar e inductively coupled to a triangle loop to form wi de impedance bandwidth for uni- versal application UHF (860 – 960 MHz) RFID. The struc- ture of

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KCDIOM

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