نتایج جستجو برای: computer regulation thermography

تعداد نتایج: 1122821  

Journal: :Materials and Structures 1998

2004
M. L. Brioschi O. Malafaia A. F. C. B. Costa J. V. Vargas

This paper is about the development, uses and advantages of infrared thermography. Its principles had already been used by old civilizations as a manner of diseases diagnosis. The discovery of the infrared waves and its heating power happened on 1800, but its use in modern Medicine as a diagnosis method was only possible because of the scientific and technological development demanded by the Gr...

Journal: :Acta of bioengineering and biomechanics 2007
H Zaïdi R Taïar S Fohanno G Polidori

This work aims to study the usability of infrared thermography in swimming for the purpose of quantifying the influence of the swimming style on the cartographies of cutaneous temperatures of a swimmer. Only one subject took part in the experimental protocol, who was to accomplish a 4 x 100 m 4 medley. Thermal acquisitions followed by one period of recovery with return to thermal balance were c...

2005
T. D. CAPISTRANT R. J. GUMNIT

Detecting Carotid Occlusive Disease by Thermography • The ability of facial thermography to detect disease in the internal carotid artery was evaluated. Unilateral forehead cooling of 0.7°C or greater was observed in 57% of 30 cases with angiographically proved stenosis. Two provocative tests, facial cooling and a head clamp, increased the sensitivity rate to 83%. The greatest overall sensitivi...

Journal: :Dental materials journal 2003
Manabu Komoriyama Rie Nomoto Rin Tanaka Noriyasu Hosoya Kazuhiro Gomi Fumiaki Iino Akihiro Yashima Yasuko Takayama Masahiko Tsuruta Hajime Tokiwa Kenzo Kawasaki Takashi Arai Toshio Hosoi Ayao Hirashita Susumu Hirano

The purpose of this study was to devise and propose appropriate conditions for the photographing of thermal images in the oral cavity and to evaluate which thermography techniques can be applied to dentistry by evaluating the differences in temperature among oral tissues. Thermal images of oral cavities of 20 volunteers in normal oral condition were taken according to the guidelines of the Japa...

2008
F. J. Madruga C. Ibarra-Castanedo X. Maldague

Non-destructive testing (NDT) by active infrared thermography requires of data processing techniques in order to: i. improve the thermal contrast between defective and non-defective areas, and ii. reduce the large quantity of images recorded during the inspection without losing relevant information. In this paper, the use of the skewness statistic parameter is proposed for the automatic process...

Journal: :British medical journal 1982
A Lindhagen D Bergqvist T Hallböök B Lindroth

A total of 112 patients participated in a prospective study of after-exercise thermography as a screening method for predicting risk of postoperative deep venous thrombosis. The fibrinogen-uptake test was used to detect thrombosis after elective surgery. The incidence of the complication showed no significant difference between patients who had had positive and those who had had negative thermo...

Journal: :Optics express 2008
Julien Didierjean Emilie Herault François Balembois Patrick Georges

We present a thermal conductivity measurement method for laser crystals based on thermal mapping of the crystal face by an infrared camera. Those measurements are performed under end-pumping of the laser crystal and during laser operation. The calculation of the fraction of pump power converted into heat is therefore simplified, and it is possible to link easily the temperature in the crystal t...

Journal: :Physical review letters 2011
T Eich B Sieglin A Scarabosio W Fundamenski R J Goldston A Herrmann

Experimental measurements of the SOL power decay length (λ(q)) estimated from analysis of fully attached divertor heat load profiles from two tokamaks, JET and ASDEX Upgrade, are presented. Data was measured by means of infrared thermography. An empirical scaling reveals parametric dependency λ(q) in mm = 0.73B(T)(-0.78)q(cyl)(1.2)P(SOL)(0.1)R(geo)(0), where B(T)(T) describes the toroidal magne...

2007
D. BANERJEE C. S. GARBE U. SCHIMPF B. JÄHNE S. SCHABEL

A novel measurement technique, based on infrared thermography, has been applied for characterizing the thermal properties of paper with high spatial resolution. The technique is termed as ‘active thermography’ since the temperature response of a paper sheet is observed and analyzed with respect to an external periodic heating. Through the analysis of the temperature response of the paper surfac...

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