Graphics and Haptics for Simulation Models

Computer Methods and …, 2010

The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately. c o m p u t e r m e t h o d s a n d p r o g r a m s i n b i o m e d i c i n e 1 0 2 ( 2 0 1 1 ) 295-304 Physiology Mathematical model Computer model Simulation a b s t r a c t Guyton's original integrative physiology model was a milestone in integrative physiology, combining significant physiological knowledge with an engineering perspective to develop a computational diagrammatic model. It is still used in research and teaching, with a small number of variants on the model also in circulation. However, though new research has added significantly to the knowledge represented by Guyton's model, and significant advances have been made in computing and simulation software, an accepted common platform to integrate this new knowledge has not emerged. This paper discusses the issues in the selection of a suitable platform, together with a number of current possibilities, and suggests a graphical computing environment for modelling and simulation. By way of example, a validated version of Guyton's 1992 model, implemented in the ubiquitous Simulink environment, is presented which provides a hierarchical representation amenable to extension and suitable for teaching and research uses. It is designed to appeal to the biomedical engineer and physiologist alike. .ie (V. Mangourova).

Signals and Systems in Biomedical Engineering: Physiological Systems Modeling and Signal Processing, 2019

Model-Based Analysis of Physiological Systems Sometimes a computing machine does do something rather weird that we hadn't expected. In principle one could have predicted it, but in practice it's usually too much trouble.-Alan Turing Physiological modeling involves the development of mathematical, electrical, chemical, or other analogs whose behavior closely approximates the behavior of a particular physiological system. Such models allow us to extend intuitive knowledge gained in one area to another less familiar area. The earliest models of physiological system were physical analogies. Even now many students in high school are introduced to the ideas of respiration and blood flow using physical models involving air flow and water in tubes, respectively. Mathematical descriptions of physiological systems use differential equations and the analysis of these systems requires solving differential equations. Such solutions of differential equations can in principle be done analytically (i.e., on paper), physically (i.e., by building a physical analog), or numerically (i.e., on a digital computer). With modern personal computers, the last of these options is very attractive. Since models rely on experimental data to provide the basic relationship between parameters, the accuracy of the model rests on the accuracy of the experimental measurement. The majority of contemporary models are computer based, using computational solutions of equations and graphical presentations to analyze and simulate the system under study. 7.1 Biophysical and Black Box Models There are two main approaches to modeling physiological systems and the choice of either approach depends on the end purpose and the ease of implementation. The first approach is to obtain a set of mathematical equations that will mimic

2005

The authors' methodology of creating e-learning content for the students of physiology, pathophysiology and biomedicine at the Faculty of Medicine is presented here. The design process from a formalized description of physiological reality to interactive educational software is described. Various tools are used during the design-starting with the numerical simulation software Matlab/Simulink, through Macromedia Flash for interactive animations, Control Web or MS Visual Studio for user interface design to web publishing tools including the Macromedia Breeze learning management system. Also, various professions are involved-teachers, physicians, simulation/modeling experts, graphic designers and programmers. The aim is to provide students with software that helps them understand the complex dynamics of physiological systems.

2004

Here, we will start with the discussion about the application of the mechanics to the living systems or materials. Such an approach to mechanical analysis of living systems is different to that one used in engineering because of its functional complexity of the living systems. Living systems are the constructin of many organic systems, that we should study them and also their interactions. Partially is important interaction of the human with its environment. The ralationship between man and environment has ever been a subject of investigation. Scientifitic studies on five senses have been carried out since the time of Aristotle. Man communicates in two different ways. One is effected in contact with the outside world and another with its own body. The first way of communication is through five sences known as hearing, sight, smell, tase and touch; the second way through the proprioceptive system. Fischer and Braun (1889). They involved an approximative method which is known as &quot...

2015

ABSTRACT: Creation of modern educational software represents a challenging and complicated project, requiring team cooperation of various professionals. To keep the whole interdisciplinary design cycle fast and efficient, it is necessary to use specialized development tools with sufficient technical support at every stage of the design. The authors present their way of designing multimedia biomedical educational software with simulation games. Simulation models, created using simulation development tools- Matlab/Simulink from MathWorks, are decomposed to interconnected simulation chips suitable for interdisciplinary cooperation between physiologists and programmers during design-time. Interactive graphical components utilize animation software tools- Flash and Director from Macromedia. The user interfaces of the simulators are implemented in Control Web from Moravian Instruments (the Control Web environment was primarily intended to develop industrial control and visualization appli...