نتایج جستجو برای: thermography

تعداد نتایج: 3667  

Journal: :Journal of thermal biology 2016
E Faye O Dangles S Pincebourde

Surface temperature drives many ecological processes and infrared thermography is widely used by ecologists to measure the thermal heterogeneity of different species' habitats. However, the potential bias in temperature readings caused by distance between the surface to be measured and the camera is still poorly acknowledged. We examined the effect of distance from 0.3 to 80m on a variety of th...

2016
G. Cuccurullo

An infrared thermography equipment is used to measure the temperature rise at the rear surface of a sample submitted to the pulse irradiation of a flash source, in order to derive simultaneously two thermal properties of the sample. The Levemberg Marquadt technique is used to match the experimental data to the analytical model. Care is taken to tune sample features and the experimental set-up. ...

2009
W. Ben Larbi C. Ibarra-Castanedo M. Klein X. Maldague

Infrared thermography is a nondestructive evaluation technique aimed to the detection of surface temperature variations related to the presence of subsurface defects. Several inspection techniques have been developed over the years with basically two approaches, lock-in thermography and pulsed thermography. These two techniques are based on the principle of heat diffusion and thermal wave refle...

2015
Krzysztof Woźniak Liliana Szyszka-Sommerfeld Grzegorz Trybek Dagmara Piątkowska

BACKGROUND The purpose of the present study was to evaluate the sensitivity, specificity, and accuracy of thermography in identifying patients with temporomandibular dysfunction (TMD). MATERIAL AND METHODS The study sample consisted of 50 patients (27 women and 23 men) ages 19.2 to 24.5 years (mean age 22.43±1.04) with subjective symptoms of TMD (Ai II-III) and 50 patients (25 women and 25 me...

Journal: :Anesthesia and analgesia 1996
M L Marsh D I Sessler

T he major reason for monitoring intraoperative temperature is for detection of fever, malignant hyperthermia, and hypothermia. Inadvertent hypothermia-defined by an absolute core temperature <36”C-is by far the most common perioperative thermal disturbance. However, hypothermia may be difficult to evaluate using liquid-crystal thermography, because skin temperatures are l-4°C less than core te...

Journal: :journal of biomedical physics and engineering 0
f hasanaj b hashemi tarbiat modares university m e akbari h r mirzaei m mojtahed m bakhshandeh

background: breast cancer is the most common type of cancer in women demanding time and accurate diagnosis to take remedial measures to treat. objective: comparing the diagnostic capability of the computer regulation thermography (crt), as a novel and safe dignostic procedure, with common clinical examination and imaging methods including sonography and mammography for diagnosing breast cancer ...

Journal: :CA: A Cancer Journal for Clinicians 1983

2017
Yohei Okada Hiromichi Narumiya

Poikilothermia is a fundamental symptom of acute limb ischemia (ALI) and is known as "6Ps". Herein, we present the visualization of poikilothermia caused by ALI using handheld thermography. We believe that handheld thermography could be useful to assess poikilothermia objectively as a supplementary method to physical examination.

2015
M. Farhat P.-Y. Chen H. Bagci C. Amra S. Guenneau A. Alù

We theoretically and numerically analyze thermal invisibility based on the concept of scattering cancellation and mantle cloaking. We show that a small object can be made completely invisible to heat diffusion waves, by tailoring the heat conductivity of the spherical shell enclosing the object. This means that the thermal scattering from the object is suppressed, and the heat flow outside the ...

حمیدی, مرتضی, دادپی, معصومه, قیومی زاده, حسین, نامداری, فرشاد,

Background and Objective: Varicocele is the abnormal dilatation and tortuosity of pampiniform plexus above the testicles. The distribution pattern of abnormal heat in the scrotum can be detected by thermal imaging. The thermal imaging is a remote, noncontact and noninvasive method. The purpose of the study was to investigate the correlation between varicocele and the temperature of testicular u...

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