Does forehead liquid crystal temperature accurately reflect “core” temperature?
نویسندگان
چکیده
منابع مشابه
Temperature Tunability of Dielectric/ Liquid Crystal / Dielectric Photonic Crystal Structures
Recently, photonic crystals doped with liquid crystal (LC) material havegained much research interest. In this article new ternary one-dimensional photoniccrystal introduced and studied. The liquid crystal layer of 5CB and 5PCH is sandwichedby two dielectric layers. For the first time, we use four structures SiO2/UCF35/CaF2,SiO2/5CB/CaF2, NFK51/UCF35/NPSK53 and NFK51/5CB/NPSK53. The effect ofte...
متن کاملTemperature effect on liquid crystal refractive indices
A model describing the temperature effect of liquid crystal ~LC! refractive indices is derived and confirmed by experiment. Two single LC compounds ~5CB, 5PCH! and two mixtures ~MLC-6241-000 and UCF-35! with different birefringence values were used to validate the model. This model fits all the experimental data well. For a low-birefringence LC mixture, if the operating temperature is far below...
متن کاملFailure of intraoperative liquid crystal temperature monitoring.
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...
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Two kinds of electroconvection patterns in an ether-bridged bent-core nematic liquid crystal material (BCN), which appear in different frequency ranges, are examined and compared. One is a longitudinal pattern with the stripes parallel to the orientation of the BCN and with a periodicity of approximately the cell thickness, occurring in the high-frequency range of several hundreds Hz; the other...
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The forehead Fever Scan gave a better estimate of oral temperature than did axillary temperature in 36 children with and without fever.
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ژورنال
عنوان ژورنال: Canadian Journal of Anaesthesia
سال: 1990
ISSN: 0832-610X,1496-8975
DOI: 10.1007/bf03006486