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Numerical simulation with a numerical human model using the finite-difference time domain (FDTD) method has recently been performed in a number of fields in biomedical engineering. To improve the method's calculation speed and realize large-scale computing with the numerical human model, we adapt three-dimensional FDTD code to a multi-GPU environment using Compute Unified Device Architecture (CUDA)...
Anesthetic and analgesic agents act through a diverse range of pharmacological mechanisms. Existing empirical data clearly shows that such “microscopic” pharmacological diversity is reflected in their “macroscopic” effects on the human electroencephalogram (EEG). Based on a detailed mesoscopic neural field model we theoretically posit that anesthetic induced EEG activity is due to selective parametric...
Proper ankle control is critical to both standing balance and efficient walking. This study hypothesized that a Flat Interface Nerve Electrode (FINE) placed around the sciatic nerve with a fixed number of contacts at predetermined locations and without a priori knowledge of the nerve's underlying neuroanatomy can selectively control each ankle motion. Models of the human sciatic nerve surrounded by...
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...
The goal of this work is to design and develop an Information System that integrates human genome variation data currently scattered in different repositories. The continuous and increasing interest generated around the variations knowledge, makes the study of this research topic from an Information System point of view extremely attractive. The system has been developed following a conceptual-model...
The cardiac action potential (AP) is produced by the orchestrated functions of ion channel dynamics. The coordinated functions can be simulated by computational cardiac cell models, which could not only overcome the practical and ethical limitations in physical experiments but also provide predictive insights on the underlying mechanisms. This investigation is aimed at modeling the variations of cardiac...
This paper reviews computational techniques for calculating specific absorption rate (SAR) and temperature elevation in anatomically-based human models for microwave exposures. Then, variability of SAR and temperature elevation in different human models is investigated. Dominant factors influencing SAR and temperature elevation are also discussed based on the computational results.
Human Resources Information Systems (HRIS) plays an important role for any organisation to effectively manage its human assets. In military domain, HRIS is particularly crucial as the organisation comprises a huge number of personnel who not only possess various skill sets but also are physically scattered at remote locations. Military operations in essence require the selection of right personnel...
Action planning is important for autonomous systems since the capacity to find a solution for a particular problem determines the degree of system autonomy. When designing an action planning system for real world domains, hierarchical systems offer a promising way to split complex planning goals in clearly-arranged sub-goals. Although dividing problems into chunks depicts a performance adequate approach...
In this study, we present a novel, miniaturized, biocompatible antenna at the medical implant communications service (MICS) band (402–405 MHz) for integration in wireless biotelemetry devices implanted in the human head. To reduce simulation time, the antenna is designed while in the center of a skin tissue simulating box and subsequently implanted inside the skin tissue of an anatomical human head...
A crucial challenge in human body tracking is the high degrees of freedom (up to around 40) to be recovered. A method based on multi-objective optimization algorithm is presented here to tackle this problem. In our multi-objective optimization based human body tracking framework, tracking is considered as two functions' co-optimization problem where the aim is to optimize the matching functions between...
The reconstruction method of 2D digital manikin model is proposed based on Rhinoceros to usability evaluation for environmental space, environment facilities, and products. It used Curve technology on Rhinoceros and rapidly built 2D human modeling. And it is used for Usability Test. This reconstruction way can build virtual human library, and it can evaluate usability of environment space, environment...
Recently, urban sprawl becomes common phenomenon overseas and in domestic. Urban sprawl is a discontinuous development pattern and impacts on environment, economic and social aspect, including landscape fragmentation, species decrease, bio-diversity decrease and habitat destruction. Many researches indicate the relationship indeed exists between transportation accessibility and urban sprawl. The raise...
A computational model of multi-scale population densities was developed based on the native population database of Shijiazhuang city. The model comprises four parts: data processing, down-scaling, data format conversion and up-scaling. Down-scaling was completed by apportioning village population to each street block. The vector dataset of block population was converted into 100m×100m grid dataset,...
Conventional economic models facing the assessment of technical solutions to human needs usually focus on Cost and Benefit Analysis as basic instruments. These models typically compute costs of technical intervention, benefits of avoided damages and balance them. A time discounting correction is also included in order to adjust the figures obtained to a more suitable financial reference. When climate...
This paper visualized the calculated results of all counties' human residential environment index(HEI), the carrying capacity indexes of land resources(LCCI) and water resources(WCCI), the human matter accumulation index(HMI), and the human development index(HDI) of Yunnan Province in China applying GIS technology at a 5 km × 5 km grid size. Based on this, this paper further divided three types of...
Scientists have aimed at researching land use and land cover change (LUCC) and analyzing the possible trajectories of land use change in the near future in order to improve our understanding of the causes and consequences of these phenomena. This study addresses LUCC in Minjiang River, China, from 1980 to 2008. Based on satellite images, LUCC change was assessed using area of land cover change and...
Analyzing the ecological benefits from different land utilization ways comparatively, by means of the evaluation of ecological service value, set a strong fulcrum for choosing rational land utilization way, and became the key point in land use pattern at present, especially in local scale. Therefore, by taking Shapingba district of Chongqing city as an example and rectifying the coefficient of ecological...
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