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Cancer of the pancreas is a highly lethal disease and has an extremely poor prognosis. Mathematical modelling and computer simulations have been proposed as important tool to predictor initiation and progression of cancer diseases, which are very important in cancer study. Among these studies, it is widely assumed that the gene mutation rate is unchanged, which is not realistic based on recently biological...
This paper reports on signal analysis for a touch application using inrta-body communication by experiment and electromagnetic field simulation. The relationship between the position of the transmitter and the detected signal amplitude was examined in a touch application and a step application. The detected signal amplitude of the touch application is smaller than that of the step application. The...
The description of a research technique of the international economic relations on the example of world model of V. Leontyev of VV is brought, optimizing tasks are formulated, substantiation for carrying out calculations are given.
Distributed Generation (DG) is a sustainable alternative energy paradigm that allows flexible customer-participated demand response management, however when coupled with battery storage in a carbon costed policy setting true reduction of greenhouse gas emissions may not necessarily be rewarded. This paper examines the role of policy settings using an established multi-agent simulation framework that...
Sophisticated cyber attacks by state-sponsored and criminal actors continue to plague government and industrial infrastructure. Intuitively, partitioning cyber systems into survivable, intrusion tolerant compartments is a good idea. This prevents witting and unwitting insiders from moving laterally and reaching back to their command and control (C2) servers. However, there is a lack of artifacts that...
Cyber attacks are a critical threat to government infrastructure, commercial enterprises and personal devices. When belligerents attack cyber systems, they need to spread laterally to reach high value targets and communicate with their command and control sites. Intuitively, a layered defense including intrusion detection systems will limit the adversary's exploitation of the target. We apply lessons...
SimVascular is an open source software platform for cardiovascular simulation, providing a complete pipeline from medical image data to volumetric model construction, meshing, and blood flow simulation. Previous workshops and educational programs have utilized SimVascular, but learning assessments have not been used to rigorously quantify gains in conceptual understanding. Goal: The purpose of this...
The extensive involvement of energy conversion and storage technologies is becoming increasingly important in the context of energy transition. A sufficient modeling and simulation of large-scale and coherent cross-energy systems is essential to enable decision makers to put the right course. This process implies growing complexity in terms of physical and market economy modeling on the device-level,...
The heterogeneous network concept in many respects meets customer requirements and maintains high energy efficiency. In this paper, we mainly investigate the impact of deployment efficiency of heterogeneous small cells BSs compared to the advantages of increasing the performance of wireless networks as a whole. We used well-known analytical models for calculating the values that can be obtained for...
In order to study processes in organizations which are result of many local interactions between organization's actors, more and more often computer simulations are used. One of the problematic issue in this kind of studies is to ensure that the outcomes of the models reflect in some way real-world social networks. In this article we compare network structures generated in two such models using as...
Based on the principle of bionic hexapod, a 3D virtual prototype model of the bionic hexapod robot and the contact model between its feet and the ground are established by using MSC. ADAMS mechanical dynamics software to study the motion of the bionic hexapod robot on the horizontal ground. And then, the kinematics analysis of a single leg of the robot is made to realize the overall motion control...
Osteoporosis is a skeletal disorder which leads to bone mass loss and to an increased fracture risk. Recently, physics-based models, employing finite element analysis (FEA), have shown great promise in being able to non-invasively estimate biomechanical quantities of interest in the context of osteoporosis. However, these models have high computational demand, limiting their clinical adoption. In...
A novel model of heterogeneous multiple dynamic agent systems is established, which describes the chasing process between a group of agents and their quarries. In the model, the group is modeled based on inter-individual attraction and repulsion, that is, each individual can neither move away from the whole group nor get too close to other members. Moreover, two functions are introduced to reveal...
This project used a ECG simulator built upon the Fourier series principle to study the patterns of normal and abnormal (defined as both above and below normal ranges) heart beats and other important ECG parameters for children of differing age groups. Across age groups with normal and abnormal settings, the heart rate is shown as positively correlated with R wave peaks, and inversely correlated with...
We are using life-size mannequins within an education subjects, e.g. “Medical devices” for a demonstration of basic principles of modern clinical devices such as mechanical lung ventilator. Limitation of many simulators is uniformity of its outputs for same input parameters. This paper describes variability of the vital signs of the mannequin when the same scenario was used for different base patients...
A local-feedback transconductor (LFB OTA) is a linear OTA operating in a saturation region. In addition, the LFB OTA operating in a subthreshold region, whose transfer characteristics are expressed by a sinh function, is utilized for low-power and low-transconductance linear OTAs. However, the LFB OTA has a limit of a tuning range of a transconductance because of a local-feedback structure. To improve...
Direct current (DC) power distribution has recently gained traction in buildings research due to the proliferation of on-site electricity generation and battery storage and an increasing prevalence of end uses operating internally on DC. The research discussed in this paper uses Modelica-based simulation to compare the efficiency of DC building power distribution with an equivalent alternating current...
Although the area of surgical simulation has been the subject of study in recent years, it is still necessary to develop artificial experimental models with a perspective to dismiss the use of biological models. Since this makes the simulators more real, transferring the environment of the health professional to a physical or virtual reality, an anesthetic prototype has been developed, where the motor...
Smart Grids (SGs) are electrical power grid infrastructures that aim at managing both cyber and physical resources and provide efficient energy routing. The cyber part of the system encompasses computing and networking resources, whereas the physical part faces with mechanical and electrical processes. Due to the strong integration and interaction among cyber modules and physical components, the complexity...
Derivation of a steady state and dynamic model of direct electron transfer of the bioanode utilized in a self-powered glucose biosensor (SPGS) is described. The bioanode comprises of dense network of multi-walled carbon nanotubes (MWCNTs) functionalized with pyrroloquinoline quinone dehydrogenase (PQQ-GDH) to oxidize glucose substrate. The model is based on detail charge and mass balances for several...
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