Handling and ride quality are affected by many factors, including high-frequency vibrations, body booming, body roll and pitch motion, vertical motion by the suspension system and frequency vibration transmitted from the road input excitations. This article focuses on the most significant vibration source that affects handling and ride quality, whi

Several control policies of semi-active system, namely skyhook, groundhook and hybrid controls are presented using a half-car model, as a continuation of the previous work on quarter-car model. Their ride comfort, suspension displacement and road-holding performances are analysed and compared with passive system. The analysis covers both transient

In the 21st century more than ever, technology is the driving engine behind civilizations. Technology level has become an indicator of advancement and living standard. No county whatsoever can lead and prosper without owning and developing technologies locally. The first step in the take off will be to transfer the available technologies. With the

Control system is one of the most important subjects in engineering that crossed the borders between many disciplines. Essential knowledge of the subject became a must after the rapid development in technology that made controls everywhere in all devices used in everyday life. It is our effort in this textbook to present a concise and clear textboo

The paper reports the first part of two simultaneous studies on urban travel patterns in Malaysia. The first refers a completed research that focused on the variation in mode switching behaviors among rail users in a developing city done by the first author. Meanwhile, the second author deals with the prospective of telecommuting and its relations

The formation and development of a wing-tip vortex in a near and extended near filed were studied experimentally. Particle image velocimetry was used in a wind tunnel to measure the tip vortex velocity field and hence investigate the flow structure in a wake of aircraft half-wing model. The purpose of this investigation is to evaluate the main feat

The microwave signal attenuation caused by dust is one of the major problems in utilizing microwave bands for terrestrial and space communication especially at desert and semi desert area. This paper presents a mathematical model developed to characterize the microwave signal attenuation due to dust. This model enables a convenient calculation of t

Problem statement: Satellite operations at V band in tropical and equatorial regions are constrained as a result of attenuation from rain. Approach: Statistics for 20 consecutive months of V band terrestrial link signal attenuation measurements in Malaysia were presented in this analysis. Such information was considered very pertinent for Earth-spa

A decade ago, the operating frequencies of most available satellites in the tropics were C band, S-band and Ku-band. The V-band satellite links were initially confined mainly to temperate regions. Recently however, this new service has gradually been introduced worldwide including the tropical regions. In the future, new satellites in the tropical

Marine benthic dinoflagellate smainly Prarocentrumspecies have been reported to produce diarrhetic shellfish @sP) genus Prorocentrum, toxin and this toxin can causes gastoointestinal disease in human. In identification of the the seYeral morphological characteristics have been used ia. cellsize, omamentation of thecal plates, number ofplatelets in