Papers by Keyword: Safety

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Authors: Juraj Králik
Abstract: This paper presents the methodology of the reliability analysis of the fire resistance of the steel structure of the cable way in NPP. The elastic and plastic solution of the steel structure under fire loads is discussed. The deterministic and probability analysis of the fire resistance of the steel structures are considered. The executed fire resistance analysis of the steel structures is investigated as the influence of temperature, permanent and variable loads. A Response Surface Method (RSM) for the nonlinear analysis of the fire structure reliability was used on program ANSYS. The advantages and disadvantages of the deterministic and probabilistic analysis of the fire safety are discussed.
Authors: Yun Kai Wei, Yu Ming Mao, Qin Yu, Na Li
Abstract: With the rapidly development of natural gas production, storage and transportation, the requirement for safety monitoring on natural gas industry are continuously increasing. This paper analyzes the application of WSN (wireless sensor network) in natural gas industry safety monitoring, and proposes a layered structure for large scale WSN based safety monitoring system, which can be used in collecting various kinds of safety information in natural gas industry, and sending them to surveillance center for data analyzing and early warning of abnormal situation. In the structure, we discuss the deployment of sensor nodes, sink nodes and e-sink nodes, and proposed the layered data fusion model and query model.
Authors: Le Ping Yuan, Rui Shan Sun
Abstract: The objective of the research was to develop an advanced hazard management information system in air transportation system, which was a supportive tool for the implementation of safety management system and safety risk management. Firstly, hazard management process was outlined taking account of the regulator, the air operator/air navigation service provider/airdrome and their responsibilities, the process clearly showed the necessity of such a system. The system fulfills five basic functions: hazard log management, inspection service, alerting service, statistics service and system management, it matches the needs of daily hazard management. Furthermore, architecture of the system and key algorithms was discussed in the paper. By using web technology, i.e. JSP and MySQL, the hazard management information system was developed based on B/S structure. Application of the system will definitely facilitate safety risk management and make safety management more proactive and efficient.
Authors: Bin Chen, Cao He, Jian Bo Wang
Abstract: On the basis of analyzing and abstraction of the relationships of all factors in road traffic system to driver’s personal ability and the requirements of systematic task, the states of driver’s personal ability and systematic task are researched. The safety level under different match states is revealed and the matching criterion for higher safety properties is provided through studying of the match level of driver’s personal ability and systematic task. In addition, the methods how to examine drive’s ability or system state.
Authors: Bo Peng, Guang Zhen Li
Abstract: As the world’s most widely used phone operating system, Android has been chosen to get our lives convenient. However, as the importance of the services our cell phones support increases, so too do the opportunities for invasion. More attention should be paid to the risks of Android OS. In this paper, we analyze the Android security and then give methods based on Android privilege to prevent invasion while using or developing. The method can make users avoid most of the hacking.
Authors: Yi Min Ma, Fei Zhai, Wen Ming Mei
Abstract: Crawler transporter is an emerging material handling vehicle for construction of transmission networks in mountainous areas, featuring high efficiency and safety. It consists of a crawler chassis, a remote control system, front and rear carrying gantries which can rise/lower and make left/right turns for smooth running in special terrains, a ginpole for handling of tower, a skip which, together with the carrying gantries, is capable of handling different kinds of materials, and a self-recovery winch. This paper also introduces a series of test methods to ensure safety during handling of material using this type of transporter.
Authors: Kooi Chung Leng, Abu Bakar Abdul Hamid
Abstract: The aim of this study is to understand the consumer in the country of Malaysia which is one of the most developed countries in Southeast Asia. The study is being carried out to explore the consumer buying behavior in hybrid vehicle (HV). The objective of this study is to study which factors affect consumers hybrid vehicle buying decision. In addition, the study also in-depth analyzed whether there is any relationship between influencing factors and demographic factors such as gender, income, education and age. SPSS version 20.0 has been used for analysis the data information. 500 respondents will be selected to fill the questionnaire. The finding of this study provided empirical results to academician and vehicle producer in the field of green vehicle buying behavior in Malaysia.
Authors: Juraj Kralik
Abstract: The last accidents of the NPP in Chernobyl and Fukushima give us the new inspiration to verify the safety level of the NPP structures. This paper presents the new requirements to test of the safety and reliability of the NPP structures due to the last accidents in the world. The risk assessment to verify of the safety and reliability of the NPP structures based on probabilistic and nonlinear analysis is presented. The uncertainties of the loads level (long-time temperature and dead loads), the material model (concrete cracking and crushing, behaviour of the reinforcement and liner), degradation effects and other influences following from the inaccuracy of the calculated model and numerical methods were taken into account in the LHS method. The results of the deterministic and probabilistic analysis of the NPP structures are presented.
Authors: Athanasios G. Mamalis
Abstract: Some recent trends and developments in advanced manufacturing of advanced materials from macro-to nanoscale subjected to shock loading, i.e. the up-to-date very important engineering area from industrial, research and academic points of view, with industrial applications to net-shape manufacturing, bioengineering, energy and safety, an outcome of the very extensive, over 40 years, work on this field performed by the author and his research international team, are briefly outlined.
Authors: Alexander Walker, Aleksandar Subic
Abstract: Natural, synthetic and combinations of natural and synthetic materials are used widely in contemporary sports surfaces which have been designed to encourage elastic deformation under load, in order to increase athletic performance and at the same time reduce the risk of injury. In response to this need, manufacturers have developed a wide variety of indoor sports flooring systems types, which are generally separated into two major categories, area-elastic sports surfaces and point-elastic sports surfaces. Area elastic sport surface structures attenuate energy by allowing deformation over a comparatively large area, where as point elastic sport surface structures deform in response to applied forces over a relatively small area, in close proximity to the point of impact. Sports surfaces can therefore be extremely complicated arrangements of materials, which contribute to a surfaces complex behaviour. The materials used in each of these surface categories, attenuate the energy applied to a surface by an athlete, in order to reduce the energy returned to the athlete. Viscoelastic materials are therefore used as synthetic shock absorbers, in order to reduce the amplitude and increase the duration of an applied shock. To understand the cushioning properties of these materials, it is necessary to consider the structural aspects of the various material combinations. It is the aim of this chapter to discuss the types of sports surface materials used, the ways in which the materials are configured and the performance standards which have been applied, in order to evaluate athletic performance and reduce the risk of injury to an athlete.
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