نتایج جستجو برای: thermography

تعداد نتایج: 3667  

Journal: :International journal of occupational safety and ergonomics : JOSE 2005
Grzegorz Gralewicz Grzegorz Owczarek Bogusław Wiecek

This paper presents a study of the possibilities of evaluating thermal parameters of single and multilayer structures using dynamic thermography. It also discusses potential uses of lock-in thermography. It presents a simulation of a periodic excitation of a multilayer composite material. In practice, the described methods can be employed in various applications, for example, in multilayer nonw...

2016
D. Wu W. Karpen K. Haupt H.-G. Walther G. Busse

The technique of thermal wave thermography combines advantages of both conventional thermal wave measurement and thermography using a commercial IR camera. This technique allows for shorter imaging time and depth profiling. Non-uniformity of heating area and optical surface structures can be suppressed in phase images. Several examples show the potential applications of thermal wave thermograph...

2011
Tao Li Kikuhito Kawasue Satoshi Nagatomo

Fig.1 Measurement system In this paper, the three-dimensional surface shape measurement system with the temperature information is introduced. The measurement is established using a three-dimensional surface measurement system and a thermography. The measurement system is composed of CCD camera, a laser and thermography. The laser is projected to the object and the laser streak image appeared o...

Ali Fayazi, Cyrus Ahmadi Toussi, Hossein Ghayoumi Zadeh, Mitra Navid, Mostafa Danaeian, Nasrin Ahmadinejad,

Background: Breast cancer is a common malignancy in which early breast cancer detection by the help of imaging can improve the treatment outcome. Thermography utilizes infrared beams which are fast, non-invasive, and non-contact and the output created images by this technique are flexible and useful to monitor the temperature of the human body. Case presentation: Our patient is a 25-year-old w...

2015
Ho Yeol Zhang

We analyzed IR thermographies of 137 spinal cord tumor patients. Thermography (+) with level correlation was 67.8%, symptom correlation was found 28.8% with local pain, 81.1% with radiculopathy. Myelopathy (+) thermography was 71.9% in cervical level, 61.5 % in thoracic, 75.6% with para(quadri)paresis and over 100% with Brown-Sequard syndrome. For the extradural or IDEM tumors, thermography rep...

2016

Composite materials have appropriate thermal properties for detection flaws by means of non-destructive infrared thermography methods. Infrared thermography methods are based on tracking heat flow that has been induced by flood lamps. Lock-in thermography, as one of infrared thermography methods, is used in detection of flaws. Surface of specimen is periodically heated by heat flow in form of s...

2016
Sz. Kołacz M. Moderhak J. Jankau

This paper compares the effectiveness of the dTnorm and t90_10 parametrizations in dynamic thermography for imaging location of perforators in TRAM flaps in the intraoperative period. The results were compared with the location detected in a Doppler ultrasound examination. Cold and heat stimulation was used in dynamic thermography. Additionally, these results were compared with static thermogra...

2015
Maher Alsaaod Allan L. Schaefer Wolfgang Büscher Adrian Steiner

The use of infrared thermography for the identification of lameness in cattle has increased in recent years largely because of its non-invasive properties, ease of automation and continued cost reductions. Thermography can be used to identify and determine thermal abnormalities in animals by characterizing an increase or decrease in the surface temperature of their skin. The variation in superf...

Journal: :Circulation. Arrhythmia and electrophysiology 2010
Aravindan Kolandaivelu Menekhem M Zviman Valeria Castro Albert C Lardo Ronald D Berger Henry R Halperin

BACKGROUND Failure to achieve properly localized, permanent tissue destruction is a common cause of arrhythmia recurrence after cardiac ablation. Current methods of assessing lesion size and location during cardiac radiofrequency ablation are unreliable or not suited for repeated assessment during the procedure. MRI thermography could be used to delineate permanent ablation lesions because tiss...

2006
FEN WANG ROBERT L. ELLIOTT

The Breast Cancer Detection and Demonstration Projects (BCDDP) that were carried out by the American Cancer Society and National Cancer Institute (USA) between 1973 and 1981 evaluated breast thermography as a diagnostic procedure for breast cancer. From the results of the BCDDP study the American Radiology Society concluded that thermography was ineffective as a diagnostic procedure in breast c...

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