scholarly journals Jets in Coronal Holes: Hinode Observations and Three-dimensional Computer Modeling

2008 ◽  
Vol 673 (2) ◽  
pp. L211-L214 ◽  
Author(s):  
F. Moreno-Insertis ◽  
K. Galsgaard ◽  
I. Ugarte-Urra
2019 ◽  
Vol 47 (4) ◽  
pp. 1580-1591 ◽  
Author(s):  
Wei Cen ◽  
Ralph Hoppe ◽  
Aiwu Sun ◽  
Hongyan Ding ◽  
Ning Gu

Objectives The principal diagnostic methods of traditional Chinese medicine (TCM) are inspection, auscultation and olfaction, inquiry, and pulse-taking. Treatment by syndrome differentiation is likely to be subjective. This study was designed to provide a basic theory for TCM diagnosis and establish an objective means of evaluating the correctness of syndrome differentiation. Methods We herein provide the basic theory of TCM syndrome computer modeling based on a noninvasive cardiac electrophysiology imaging technique. Noninvasive cardiac electrophysiology imaging records the heart’s electrical activity from hundreds of electrodes on the patient’s torso surface and therefore provides much more information than 12-lead electrocardiography. Through mathematical reconstruction algorithm calculations, the reconstructed heart model is a machine-readable description of the underlying mathematical physics model that reveals the detailed three-dimensional (3D) electrophysiological activity of the heart. Results From part of the simulation results, the imaged 3D cardiac electrical source provides dynamic information regarding the heart’s electrical activity at any given location within the 3D myocardium. Conclusions This noninvasive cardiac electrophysiology imaging method is suitable for translating TCM syndromes into a computable format of the underlying mathematical physics model to offer TCM diagnosis evidence-based standards for ensuring correct evaluation and rigorous, scientific data for demonstrating its efficacy.


1998 ◽  
Vol 25 (3) ◽  
pp. 303-308 ◽  
Author(s):  
John S Rubin ◽  
Paul Summers ◽  
Tom Harris

Author(s):  
I. I. Bayneva ◽  
N. S. Komarov

The article discusses optical systems for LED lighting devices, the principles of the propagation of rays in lenses of various designs. Analyzed the features of the secondary use of the optical elements in the form of lenses and prisms for different LED emission patterns in space. Considered the features and problems of calculation of the secondary optical systems. Problems and prospects of application are considered, research and computer modeling of optics, which is used to form the required light distribution in LED light devices. Computer modeling technologies and the mathematical methods that underlie them determine the possibility of developing such optical systems in lighting installations. The article considers the numerical Monte Carlo simulation method, which allows one to organize ray tracing modeling in optical systems. The TracePro software package for modeling and research of lighting devices and their optical elements allows you to automate the stage of their calculation and design, this significantly reduces the cost of developing new products. The prototyping of three-dimensional models of lens systems opens up great opportunities for manufacturers of optics for LEDs, allows research on prototypes planned for production of serial products.


Author(s):  
J. Davis ◽  
J. Goodman ◽  
R. Gahbauer ◽  
B. Mullin ◽  
C. Kanellitsas ◽  
...  

1991 ◽  
Vol 221 (1) ◽  
pp. 293-308 ◽  
Author(s):  
Christine Brunel ◽  
Pascale Romby ◽  
Eric Westhof ◽  
Chantal Ehresmann ◽  
Bernard Ehresmann

1981 ◽  
Vol 1 (4) ◽  
pp. 409-434 ◽  
Author(s):  
Christine Humblet ◽  
Garland R. Marshall

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