Results 271 to 280 of about 551,077 (309)
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The development of concentrated vortices: a numerical study
Journal of Fluid Mechanics, 1971Amongst the more important laboratory experiments which have produced concentrated vortices in rotating tanks are the sink experiments of Long and the bubble convection experiments of Turner & Lilly. This paper describes a numerical experiment which draws from the laboratory experiments those features which are believed to be most relevant to ...
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Development of a Numerical Simulation Model of the Cardiovascular System
Artificial Organs, 1997Abstract: A numerical simulation model of the cardiovascular system has been developed. It consists of a model of the left atrium, the left ventricle, the coronary vascular system, the aorta, the arterial system, and the venous system. The input of the complete model is the elastance (pressure/Volume ratio) developed by the left ventricle.
Geertsema, AA +4 more
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Numerical relay development environment
2014 International Conference on Advances in Electrical Engineering (ICAEE), 2014Advancements in application of digital signal processors in measurement and protection relaying schemes has evolved from many decades. New adaptive techniques are being developed for better power system protection. These techniques need to be tested on numerical relay test bench to analyze its accuracy and reliability under real time power system ...
M. P. Vinod +3 more
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Development of a Multipurpose Numerical Model
Proceedings of SPE Eastern Regional Meeting, 1985ABSTRACT A multi-purpose model is developed for simulating primary, secondary, and some of the tertiary recovery processes. The simulator models the isothermal flow of oil, water, and gas in porous media in two dimensions using either rectangular or radial coordinates.
H. I. Bilgesu, T. Ertekin
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Development of a numerical pump testing framework.
Artificial organs, 2014It has been shown that left ventricular assist devices (LVADs) increase the survival rate in end-stage heart failure patients. However, there is an ongoing demand for an increased quality of life, fewer adverse events, and more physiological devices. These challenges necessitate new approaches during the design process.
Kaufmann, Tim A. S. +4 more
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Origin and Development of the Sexagesimal System of Numeration
Journal of the American Oriental Society, 1949In a study entitled Sketch of a History of the Sexagesimal System,1 Thureau-Dangin expressed the opinion that ' the sexagesimal system had been the common and exclusive mode of numeration with the Sumerians, that is with the predecessors of the Babylonians.' 2 He based this opinion upon the evidence that the oldest written records hitherto excavated in
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The development of ordinal numerical knowledge in infancy
Cognition, 2002A critical question in cognitive science concerns how numerical knowledge develops. One essential component of an adult concept of number is ordinality: the greater than and less than relationships between numbers. Here it is shown in two experiments that 11-month-old infants successfully discriminated, whereas 9-month-old infants failed to ...
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The basics of developing numerical algorithms
IEEE Control Systems, 2004In this article, we surveyed several numerical methods arising in systems and control and pointed out general principles that lead to numerically reliable algorithms for solving a large range of problems in this area. Algorithms that use orthogonal or unitary transformation were emphasized because they often lead to reliable numerical algorithms.
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DEVELOPMENT OF A NUMERICAL MODEL OF THE HIP JOINT
Physical Mesomechanics of Materials. Physical Principles of Multi-Layer Structure Forming and Mechanisms of Non-Linear Behavior: Conference Proceedings, 2022Galina M. Eremina, Alexey Y. Smolin
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Developments in Numerical Ecology
South African Journal of Zoology, 1989M.J. Samways, B.H. Fivaz
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