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Search Results: 1 - 10 of 1060 matches for " Kin Choong Yow "
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Scheduling Mobile Data Services in a Bluetooth  [PDF]
Xiaoyu Liu, Kin Choong Yow
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2010, DOI: 10.4236/ijcns.2010.33040
Abstract: Public buses play an important role in public transportation in most parts of the world and it is still the dominant public transportation mode in some regions. Nowadays, as people switch to a mobile lifestyle, they spend significant amount of time on the traveling to work, back and forth. However, not much research has been done on how to provide some on-board service for those commuters in the public bus. This paper presents a Bluetooth-based system which is inexpensive, yet flexible, and scalable to serve commuters in a personalized manner using Bluetooth enabled mobile phones. However, from the Bluetooth specification, one Bluetooth dongle can connect to at most seven other Bluetooth devices. As we expect more than 7 users to use the services provided in the Bluetooth-based system (a full double-deck bus can carry around 100 passengers), we need to work out an effective scheduler to schedule all the private services on the Bluetooth servers in the bus. This paper also describes a scheduling algorithm that exploits the park mode feature of the Bluetooth specification to allow more users to have access to the Bluetooth services on the bus.
A Light-Weight Mutual Authentication and Key-Exchange Protocol Based on Elliptical Curve Cryptogaphy for Energy-Constrained Devices
Kin Choong Yow,Amol Dabholkar
International Journal of Network Security & Its Applications , 2010,
Abstract: Wireless devices are characterized by low computational power and memory. Hence security protocols dealing with these devices have to be designed to give minimal computational and memory load. We present an efficient authentication and key exchange protocol for low-end wireless clients and high end servers, which is overall nearly three times as fast as comparable protocols. The basic idea of our protocol is to use symmetric key encryption in place of public key encryption wherever possible
Anonymizing Geographic Ad Hoc Routing for Preserving Location Privacy
Zhi Zhou,Kin Choomg Yow
International Journal of Network Security , 2006,
Abstract: Due to the utilization of location information, geographic ad hoc routing presents superiority in scalability compared with traditional topology-based routing in mobile ad hoc networks. However, the consequent solicitation for location presence incurs severe concerns of location privacy, which has not been properly studied. In this paper, we attempt to preserve location privacy based on the idea of dissociating users' location information with its identity. We propose an anonymous geographic routing algorithm which includes three components to avoid the explicit exposure of identity and location in communication without compromising the efficiency guaranteed by geographic routing.
Analyzing Students’ Cognitive Load to Prioritize English Public Speaking Training  [PDF]
Yow-Jyy Joyce Lee
Journal of Data Analysis and Information Processing (JDAIP) , 2013, DOI: 10.4236/jdaip.2013.13006

This paper applies the Hierarchy Grey Relational Analysis (HGRA) for data analysis obtained from the EFL students’ cognitive load in English public speaking. Thirty-one EFL students in a class of English Presentation Training participated in the experiment and the teacher familiarized them with nine criteria of abilities in public speaking training. The participants were then asked to reflect on their own confidences in the same criteria. A framework employing HGRA was developed to analyze the data. The results show that from the easiest to the most difficult, the cognitive confidence in sequence of the participants is S(21)→S(27)→S(25)→S(16)→S(12),…,→S(2), and in sequenc eof criteria is C(1) Posture→C(5) Preparing effective visual aids→C(2) Eye contact→C(3) Gestures→C(6) Explaining visual aids→C(4) Voice variation→C(9) Closing the speech→C(7) Opening the speech→C(8) Organizing & outlining the speech body. Based on the findings, in order to tailor to students’ cognitive load for best training results, the teacher should start from easier, more concrete techniques such as motor skills and preparing effective visual aids, and finally proceed to the abstract, logical organization of the main points. Additionally, the teacher can even offer differentiated practices to those whose cognitive load level in speech skills are different.

Physical and mechanical principles of phacoemulsification and their clinical relevance
Yow Lindy,Basti Surendra
Indian Journal of Ophthalmology , 1997,
Abstract: A clear understanding of the physical and mechanical principles that govern phacoemulsification can facilitate usage of this technique for effective and efficient cataract removal in a variety of clinical situations. This article addresses separately, concepts pertaining to the three essential components of phacoemulsification, namely, irrigation, aspiration and emulsification. Machine settings are suggested for the various techniques presently in use. Finally, alternative approaches for lens removal that are currently being investigated are briefly discussed.
Folding Proteins with Both Alpha and Beta Structures in a Reduced Model
Nan-yow Chen
Physics , 2006,
Abstract: A reduced model, which can fold both helix and sheet structures, is proposed to study the problem of protein folding. The goal of this model is to find an unbiased effective potential that has included the effects of water and at the same time can predict the three dimensional structure of a protein with a given sequence in reasonable time. For this purpose, rather than focusing on the real folding dynamics or full structural details at the atomic scale, we adopt the Monte Carlo method and the coarse-grained representation of the protein in which both side-chains and the backbones are replaced by suitable geometrical objects in consistent with the known structure. On top of the coarse-grained representation, our effective potential can be developed. Two new interactions, the dipole-dipole interactions and the local hydrophobic interactions, are introduced and are shown to be as crucial as the hydrogen bonds for forming the secondary structures. In particular, for the first time, we demonstrate that the resulting reduced model can successfully fold proteins with both helix and sheet structures without using any biased potential. Further analyses show that this model can also fold other proteins in reasonable accuracy and thus provides a promising starting point for the problem of protein folding.
Soft Tissue Sarcoma: New Paradigms in Care
Peter Choong
Sarcoma , 2012, DOI: 10.1155/2012/439208
Review article: Reconstructive surgery following resection of primary and secondary tumours of the hip.
Choong PF
Journal of Orthopaedic Surgery , 2000,
Soft Tissue Sarcoma: New Paradigms in Care
Peter Choong
Sarcoma , 2012, DOI: 10.1155/2012/439208
Study of the Influence of Subtle Energetic Changes in Environment on the Productivity of the Process of Sleep  [PDF]
Edward V. Krizhanovsky, Lim Kwong Choong
Open Journal of Ecology (OJE) , 2014, DOI: 10.4236/oje.2014.411059

An experiment was conducted to study human activity after sleeping using two types of mattresses. One was ordinary mattress with a basis of cotton eco-friendly materials. Another one was an analog which was exposed to activation in the area of natural energy fields in Malaysia. The results reveal a significant effect of activated mattresses on the human psychophysiological and energy states.

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