Machining of metals is generally accompanied by a violent relative vibration between work and tool, known as chatter. Chatter arises due to resonance when the frequency of instability of chip formation and the natural frequencies (vibration modes) of the machine-system components coincide. Chatter has detrimental effects on tool life, productivity,

In CNC machining, high downtimes of machine tools are associated with the tool zero point setting in the absence of automatic setting devices. The problem is more acute in high speed and micro-machining processes dealing with micron and sub micrometer range depth of cut which precise require zero point setting. Hence there is a high demand for reli

يُعدُّ علم اللغة النصي من العلوم المعاصرة التي تناولها الباحثون في تحليل النصوص، حيث ظهرت إرهاصاته بعد صدور كتب عربية مترجمة تناولت مفاهيم السبك والحبك أو الاتساق والانسجام، وبدأت الدراسات ا

Nanotechnology has emerged as one of the very promising technologies that will change the way things have been done before. The research in nanotechnology advanced speedily with the focus on creating new devices and materials that will be applied in various field. This book will present the enhancement of the characteristics of some existing materi

Centella asiatica or “gotu kola” has been used since long time ago as an ethno-pharmacological plant and supposed to be a potent medicinal plant for its various pharmacological effects favorable for human health. Many studies described the noteworthy protective effect of C. asiatica against numerous diseases. Biological activities of C. asiatic

This study examines the contrast between verbal system of Arabic and Malay. The researcher starts with a descriptive study for issues of verbal system in Mal’ay. The following subjects are discussed: active voice, passive voice, derivation through prefixes and suffixes, repetition of the numbers and structures. In Arabic this study describes cond

Lactic acid bacteria (LAB) were isolated from the bile, gizzard, intestine and caecum of the Malaysian domestic non-broiler chicken. Of the 56 isolates grown on MRS agar plates, 7 – namely, B3L3, B4L4, G5L5, B5L6, B10L7, I1L8, and C4L10 – showed inhibition against the methicillin resistant Staphylococcus aureus (MRSA). These isolates were all G

The main aim of the current study is to isolate a fungi with laccase activities to be used for transformation of phytochemicals isolated from the same environment as an approach to produce novel pharmaceutical products. In our study, laccase producing fungi was isolated from samples taken from a tropical trees barks which grown in the International

In recent years, the use of Eurycoma longifolia Jack (ELJ) (Tongkat Ali) has spread dramatically in Southeast Asia especially Malaysia where it is widely used as aphrodisiac and anti-malarial agents. Interestingly, its consumption has become popular in daily life as beverage to enhance energy and stamina especially among males. However, its effect

Many random time series used in signal processing systems are cyclostationary due to the sinusoidal carriers, pulse trains, periodic motion, or physical phenomenon. The cyclostationarity of the signal could be analysed by using the spectral correlation function (SCF). However, it is considered high complex due to the 2-D functionality and the requi