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In this paper, we present a new routing protocol which using the characteristic of Bluetooth on Bluetooth-based mobile ad hoc networks. After observing the existing ad hoc routing protocol, we found there exist some useless routing packets which was helpless to build the routing path and increasing the load of network. We present a new Bluetooth routing protocol (BRP) which use the limited routing table in master device to reducing the routing table size and routing packets. In the simulation results, we show that BRP can reduce the routing overhead in network and avoid to product useless routing packets.

Jahresinhaltsverzeichnis

Thèse de doctorat : Sciences et techniques des activités physiques et sportives : Rennes 2 : 2009. / Titre provenant de la page de titre du document numérisé.

Thesis (M.A.B.S.)--Denver Seminary, 2000. / Includes bibliographical references (leaves 98-109).

Genetic Algorithm (GA) as a class of Evolutionary Algorithm (EA) is a search algorithm based on the mechanics of natural selection and natural genetics. This dissertation presents the description, solving procedures and application of GA. The definitions of selection, crossover and mutation operators are given in details and an application based on GA in Time Table Problem (TTP) is performed in a new way. Due to its high capability of overall search, GA is particularly appropriate for solving timetabling and scheduling problems. TTP (Time Table Problem) which belongs to NP-hard problem is a special problem concerning resource management. In this dissertation, a new chromosome coding is designed in order to solve TTP more effectively. And the result presented by MATLAB will converge to a steady condition.

published_or_final_version / Sports Science / Master / Master of Science in Sports Science

published_or_final_version / abstract / Linguistics / Doctoral / Doctor of Philosophy

A computer simulation model of the table contact phase of gymnastics vaulting was developed to gain an understanding of the mechanics of this phase of the vault. The model incorporated a gymnast and a vaulting table, and used a novel two-state contact phase representation to simulate the interaction between these two bodies during the table contact phase. The gymnast was modelled in planar form using seven segments, with torque generators acting at the wrist, shoulder, hip and knee joints. The model also allowed for shoulder retraction and protraction, displacement of the glenohumeral joint centre and flexion/extension of the fingers. The table was modelled as a single rigid body that could rotate. The model was personalised to an elite gymnast so that simulation outputs could be compared with the gymnast's performance. Kinematic data of vaulting performances were obtained using a optoelectronic motion capture system. Maximal voluntary joint torques were also measured using an isovelocity dynamometer, and a torque - angle - angular velocity relationship was used to relate joint torques to joint angles and angular velocities. A set of model system parameters was determined using a gymnast-specific angle-driven model by matching four simulations to their respective performances concurrently. The resulting parameters were evaluated using two independent trials, and found to be applicable to handspring entry vaults. The torque-driven model was successfully evaluated, and shown to produce realistic movements, with mean overall differences between simulations and recorded performances of 2.5% and 8.6% for two different handspring entry vaults. The model was applied to further understanding of the mechanics of the table contact phase of gymnastics vaulting. Optimisation showed that there was limited potential (1.3%) for the gymnast to improve performance through technique changes during the table contact phase. However, with additional changes in configuration at table contact post-flight rotation could be increased by 9.8% and post-flight height could be increased by 0.14m. Angular momentum was found to always decrease during the table contact phase of the vault, although the reductions were less when maximising post-flight rotation.

Powerpoint presentation from a UBC Library Graduate Students' workshop on Current Awareness Tools for Researchers in the Faculty of Arts. Topics covered include Journal Table of Contents Alerts, Saved Search Alerts, Citation Alerts, Google Alerts, and RSS Feeds/RSS Readers.