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Implants provide a means to electronically stimulate biological systems. Such stimulation may be designed to be driven by current or voltage. Although the methods are theoretically equivalent, the selection of which to employ has implications as to hardware design, stimulation strategies, and other practical impacts. We model the impact of voltage-driven stimulation, utilising models for producing...
Compliance of the reference level (electric field strength) to the basic restriction (whole-body average SAR) was examined when Korean male models at the ages of 1, 3, 5, 7 and 20 years are exposed to a plane wave in the frequency range of 10 MHz–3 GHz. We considered the standing postures with arms up as well as arms down. The WBA SAR values in the human models isolated and grounded were calculated...
In electric field generated by ultra high voltage overhead lines, electric charges are induced at surface of human body. These electric charges alter electric field of human body and adjoining space. In order to study the influence of human body, a human body model is placed under ultra high voltage overhead lines and electric field produced by the overhead lines is calculated. Charge simulation method...
During any extreme event, especially the evacuation in crowded places. The keys to saving lives are orderly and efficient evacuations. We have improved the traditional particle swarm optimization. It can simulate non-adaptive crowd behavior in the crowd facilities during the emergency evacuation. We introduce the concept of the leader (trained staff) and the parameter of influence, and analyzed the...
The occurrence of accident be understood as mutations in a qualitative change caused by a continuous change of some of the parameters within the system. The system from security state into the state is actually a mutation phenomenon. The paper applies the Catastrophe theory and system analysis method of the accident causation, establishes the spire catastrophe model. By analysing the model, indicates...
Ecological Security Assessment is a new field in Sustainable Development study. In order to curb the deterioration of the ecological environment, we should conduct timely researches on the comprehensive evaluation of ecological security, which is recognized as the most powerful method to protect the regional economy effectively. Based on the sequence data of 1987, 2000 and 2005, the study takes Hebei...
Defects in information technology (IT) services will have greater negative impacts on social and economic activities in the future, since the risks of such defects are increasing due to their wider applications and the growth of IT systems' complexity and scale. In this paper, upon surveying the current state of affairs and seeing that little progress has been made towards understanding and reducing...
The paper deals with the numerical prediction of the specific absorption (SA) of ultra wideband (UWB) radio systems for wireless body area network (BAN). The electro-magnetic analysis is performed by a frequency-dependent finite difference time domain (FD2TD) method here proposed with a new formulation based on a total current density approach. A first order Debye approximation is used to model the...
This paper presents a human body modeling technique, and a safe planning strategy using danger evaluation for robotic manipulators intended for interactions with humans. Such interactive robots are required to have minimum footprint on the shop floor and to be able to work in constrained areas while ensuring the safety of the humans. A new approach is proposed for generating an efficient representation...
Emergency management of food safety accidents is one field that emergency academics and practices have put emphasis on in the recent years. Sanlu milk powder scandal, an extraordinarily large food safety accident occurring on September, 2008, raised questions about emergency management model for improving the performance in emergency management of food safety accidents. This paper aims to construct...
Recently, there has been an increasing concern regarding the effects of electromagnetic waves on the health of humans. The safety of radio frequency electromagnetic fields (RF-EMFs) is evaluated by the specific absorption rate (SAR). In recent years, SAR has been estimated by numerical simulation using fine-resolution and anatomically realistic reference whole-body voxel models of people of various...
Throughout these years, with the high demand for system safety, operational efficiency and life cycle cost control, decision support systems that balance among such requests for complex system maintenance were brought forward. This paper illustrated a newly developed influence diagram decision model which integrates current states, decision actions, decision objects and cost analysis to facilitate...
This paper demonstrates the necessity of establishing the evaluation system for safety resources based on data of accounting systematically. The author gives the connotations and the features of the proposed new evaluation system of the safety resources. The main viewpoint of the paper includes that evaluation system for safety resources is used in all units with possible accidents in production and...
Quality of working life (QWL) is one of the important content for human resources management. Based on the comments towards the research on the quality of working life, its concept is redefined from the perspective of experienced utility. According to the degree of conspicuousness of the experienced items, five utility factors of the quality of working life are put forward. It also analyzes the characteristics...
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