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Reconfigurable Patch Antenna by RF MEMS Switches
Research Output | Dar Al-hikmah Library | IIUM Only

A planar reconfigurable microstrip antenna is proposed by using RF MEMS switches. The proposed antenna structure comprises a center patch antenna known as driven patch and two adjacent microstrip patches defined as wing patches. Cantilever MEMS bridges are introduced to provide to operate antenna either 21.73 GHz or 23.6 GHz depending on the positi

The Use of Digital and Imaging Technology for Students’ Evaluation in Simulation Operative Technique
Research Output | Dar Al-hikmah Library | IIUM Only

Objectives: To evaluate the efficacy of using digital and imaging technology in the assessment of students in the simulation operative technique. Methods: 47 students in the kulliyyah of dentistry/International Islamic University Malaysia was examined for Class II cavity preparation for amalgam on plastic tooth number 46. The evaluation was done by

Microelectrical Mechanical Systems Switch for Designing multi-Band Antenna
Research Output | Dar Al-hikmah Library | IIUM Only

Problem statement: In this study Microelectrical Mechanical System (MEMS) switches were proposed to design a reconfigurable/multi-band antenna to replaced PIN diode switches or semiconductor switches due to lower insertion losses, good isolation, much lower intermodulation distortion, and lower power consumption. The antenna is able to operate at v

Microfinance, Sustainable Development and Poverty Alleviation in Nigeria: Proposal for a Maqasid ash-Shari’ah Based (Msb) Model
Research Output | Dar Al-hikmah Library | IIUM Only

Nigeria is one of the countries having over 50 percent of her population suffering from poverty. Obviously, there have been serious efforts on the part of the government and other stakeholders in Nigeria at combating this socially menacing scourge of poverty. There is no doubt that by the overwhelming proportion and dimension, the trends in the inc

Phonetically Rich and Balanced Arabic Speech Corpus: an Overview
Research Output | Dar Al-hikmah Library | IIUM Only

Lack of spoken and written training data is one o f the main issues encountered by Arabic automatic speech recognition (ASR) researchers. Almost all written and spoken corpora are not readily available to the public and many of them can only be obtained by purchasing from the Linguistic Data Consortium (LDC) or the European Language Resource Associ

Synthesis, Nmr Spectroscopy and Crystal Structures Studies of 2-amino-N-(2-hydroxy-3-methoxybenzylidene) Aniline
Research Output | Dar Al-hikmah Library | IIUM Only

The reaction of o–vanillin 1 with o-phenylenediamine 2PD, in dichloromethane at low conditions produced novel amino benzeneamine: 2-amino-N-(2-hydroxy-3-methoxybenzylidene) aniline 2. Intermediate 2 is isolated and obtained as single crystals and the structure was determined and studied by x-ray crystallography. The complete assignments of 2 were

2-[1-(2-hydroxy-3-methoxybenzyl)-1h-Benzimidazol-2-yl]-6-methoxyphenol Monohydrate
Research Output | Dar Al-hikmah Library | IIUM Only

The asymmetric unit of the title compound, C22H20N2O4·H2O, comprises a substituted benzimidazole molecule and a water molecule of crystallization. The dihedral angles between the benzimidazole ring system and the two outer benzene rings are 16.54 (4) and 86.13 (4)°. The dihedral angle between the two hydroxy-substituted benzene rings is 82.20 (5)

2-[1-(2-hydroxy-3-methoxybenzyl)-1h-Benzimidazol-2-yl]-6-methoxyphenol Methanol 1.13-solvate
Research Output | Dar Al-hikmah Library | IIUM Only

In the main molecule of the title compound, C22H20N2O4·1.13CH4O, the dihedral angles between the benzimidazole plane and the two benzene rings are 80.53 (10) and 82.76 (10)°. The solvent molecules are disordered between three positions, with refined occupancies of 0.506 (13), 0.373 (13) and 0.249 (5). The crystal structure is stabilized by interm

Mold Preparation for Stir Casting of Aluminium Matrix Composite Brake Motor: a Review
Research Output | Dar Al-hikmah Library | IIUM Only

The production of composite material parts for automotive applications has grown steadily in recent years and is projected to show further growth in the nearest future. This composite automotive part undergoes casting or foundry processes such as mold preparation which is an essential component in the foundry industry. In this paper, the effects of

English Digits Speech Recognition System Based on Hidden Markov Models
Research Output | Dar Al-hikmah Library | IIUM Only

This paper aims to design and implement English digits speech recognition system using Matlab (GUI). This work was based on the Hidden Markov Model (HMM), which provides a highly reliable way for recognizing speech. The system is able to recognize the speech waveform by translating the speech waveform into a set of feature vectors using Mel Frequen

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KCDIOM

Type

KCDIOM

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