نتایج جستجو برای: Thermography

تعداد نتایج: 3667  

2011

In Civil Engineering, the application of infrared thermography is not limited to passive investigations of the quality of thermal insulation of building envelopes. Basic principles of the two main techniques of active infrared thermography, which are pulse thermography (PT) and Lock-in thermography (LT), are briefly recalled. In this paper, the use of passive infrared thermography technique for...

Journal: :ابن سینا 0
محمد درویشی m darvishi امیر نظامی اصل a nezami محمدکریم هروی بوژآبادی mk heravi امیرعلی جهانشاهی aa jahanshahi امیر ستوده a sotoudeh

abstract background: in recent years, infrared thermography tools are used for viral disease detection. however, no study has been to evaluate the value of this device. the current study was designed to review the effectiveness of infrared thermography technique for diagnosis of viral diseases in international airports. materials and methods: this study was conducted as a systematic review. all...

An experimental setup is designed to detect composite delamination damage based on ultrasonic infrared thermography. The ultrasonic infrared thermography system is composed by ultrasonic excitation system, infrared thermal imager and data acquisition system and two damaged composite plate specimens are produced in the experiment. The image processing methods including thresholding, filters, edg...

Journal: :J. Sensors 2012
Liang Cheng Guiyun Tian

Delamination is one of the most common defects in carbon fibre reinforced plastic (CFRP) components, such as those used in aircraft and wind turbine blades. To detect delaminations, different NDT methods such as ultrasonic (UT), eddy current (EC) scanning, flash thermography, and recent developed pulsed-eddy-current-(PEC-) simulated thermography are conducted for comparison and evaluation of th...

2013
C. Kim

The integration of three-dimensional (3D) data with infrared thermography has received much attention for its potential use as input data for building energy simulations. Therefore, researchers have proposed methods to integrate 3D data with infrared thermography obtained by different sensors. These studies show the potential of the integration of 3D data and infrared thermography using various...

1997
Jack E. Hubbard

Technological assessments of the neuromuscular applications of thermography have been prepared recently by various organizations, including the American Medical Association (AMA), the Joint Council of State Neurosurgical Societies of the American Association of Neurological Surgeons and the Congress of Neurological Surgeons, the Office of Health Technology Assessment of the U.S. Department of H...

Journal: :Sensors 2016
Bin Liu Hai Zhang Henrique C. Fernandes Xavier Maldague

In this article, optical excitation thermographic techniques, including pulsed thermography and lock-in thermography, were used to detect foreign object defect (FOD) and delamination in CFRP. Then, vibrothermography as an ultrasonic excitation technique was used to detect these defects for the comparative purposes. Different image processing methods, including cold image subtraction (CIS), prin...

2017
Yuko Matsui Ryoko Murayama Hidenori Tanabe Makoto Oe Yoshiharu Motoo Takanori Wagatsuma Michiko Michibuchi Sachiko Kinoshita Keiko Sakai Chizuko Konya Junko Sugama Hiromi Sanada

Early detection of extravasation is important, but conventional methods of detection lack objectivity and reliability. This study evaluated the predictive validity of thermography for identifying extravasation during intravenous antineoplastic therapy. Of 257 patients who received chemotherapy through peripheral veins, extravasation was identified in 26. Thermography was performed every 15 to 3...

2014
Rubén Usamentiaga Pablo Venegas Jon Guerediaga Laura Vega Julio Molleda Francisco G. Bulnes

The intensity of the infrared radiation emitted by objects is mainly a function of their temperature. In infrared thermography, this feature is used for multiple purposes: as a health indicator in medical applications, as a sign of malfunction in mechanical and electrical maintenance or as an indicator of heat loss in buildings. This paper presents a review of infrared thermography especially f...

Journal: :Hong Kong medical journal = Xianggang yi xue za zhi 2013
L S Chan Jessica L F Lo Cyrus R Kumana Bernard M Y Cheung

OBJECTIVE To assess the utility of remote-sensing infrared thermography as a screening tool for fever. DESIGN Cross-sectional study comparing body temperatures measured by remote-sensing infrared thermography (maximum for frontal, forehead, or lateral views) with core temperatures measured by aural or oral methods. SETTING Accident and Emergency Department, Queen Mary Hospital, Hong Kong. ...

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