Volume 1 Issue 4
Authors: George R. Daglish; Yurii P. Sizov
Abstract: This paper is to suggest a possibility for finding Hypocentre Locations by a rapid Scanning Method. Tables are pre-calculated, the use of point-to-point Ray Tracers being key. An example Seismic Event is used to supply data for illustrating the suggested procedure. In principle the software structure involved can be used to try out and validate sets of combinations of Ray Trace techniques and Earth Velocity Models.
Keywords: Seismic Event; Hypocentre; Epicentre; Ray Tracer; Radial Velocity Model; Tabular Data
Authors: Liyu Wen; Dan Tang
Abstract: Almost all secret sharing schemes run with the classic (k, n) threshold, k shares can restore the original secret but less than k shares cannot rebuild any information of the secret. And which scheme can satisfy lots a lot of applications, but it is not flexible enough. In some certain applications, this (k, n) threshold structure is not well adapted. The paper proposes a new secret sharing scheme with configurable threshold. Under the new scheme, the access structure can be set up according to our actual demands, so access structure can become very flexible and rich.
Keywords: Secret Sharing Scheme; Configurable Threshold; (k, n) Threshold
Authors: Salowa Methnani; Frédéric Lafont; Jean-Paul Gauthier; Tarak Damak; Ahmed Toumi
Abstract: In this paper, a framework for fault detection and isolation of sensors and actuators is proposed. Firstly, we will propose a methodology for fault identification after the fault detection and before the fault isolation. The approach is based on a preliminary analysis of the unknown-input observability property, from [4-6]. Secondly, if the faulty system is under an “observability canonical form”, it is possible to construct a bank of high-gain observers from [16] for fault isolation. A simula¬tion study of a waste water treatment plant under aerobic and anaerobic conditions, in the presence of noisy measure¬ments and uncertainties in the kinetic parameters, shows the effectiveness of the proposed approach.
Keywords: Nonlinear Observer; Fault Detection and Isolation; Waste Water Treatment Processes
Authors: Rattakorn Poonsuph
Abstract: Novel electronic tourist guide software, designed to be utilized on mobile phone or portable computer, is introduced in this paper. The innovative software is developed to respond to the demands of tourists to provide information on attractions and various shops. The information is communicated digitally in the forms of images, voices, videos and current news to advise tourists during their trips. The software simulates the task of a tour guide in providing information on shops and services that are available to tourists at any location. It also provides information on important attractions in details, such as providing maps, drawings to navigate inside the buildings, pedestrian directions to nearby landmarks, or coupons to nearby shops, and services, etc. The tourist who utilizes the software can create his/her path for others to see through online tourist social network to exchange ideas. Furthermore, the tour guides can create their profiles to introduce themselves and recommend places in the vicinity. The electronic tourist guide was achieved by location-aware algorithm and geographic information system (GIS) within spatial database. The tourist data contents were accumulated from multiple sources such as public POI, Tourism Authority of Thailand interfaces, and field survey for data collections of the major tourist attractions in Bangkok, Thailand. The pedestrian survey tests are experimented in many locations and the results show that the software was accurately performed.
Keywords: Tourism; Tourist; Travel Guide; Thailand