The Experts below are selected from a list of 22323 Experts worldwide ranked by ideXlab platform
Baojiu Chen - One of the best experts on this subject based on the ideXlab platform.
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nayf 4 sm 3 yb 3 nayf 4 er 3 yb 3 core shell structured nanocalorifier with optical Temperature probe
Optics Express, 2017Co-Authors: Lili Tong, Jinsu Zhang, Jiashi Sun, Hui Zheng, Yanqiu Zhang, Xiangqing Zhang, Ruinian Hua, Haiping Xia, Baojiu ChenAbstract:A core-shell structure with a NaYF4:Sm3+/Yb3+ core for photothermal conversion nanocalorifier and a NaYF4:Er3+/Yb3+ shell as Temperature probe for potential applications in photothermal therapy (PTT) were synthesized by a thermal decomposition technique of rare-earth oleate complexes. The optical Temperature Reading-out property for the NaYF4:Sm3+/Yb3+@NaYF4:Er3+/Yb3+ core-shell structure was systematically investigated and it was found that in comparison with pure NaYF4:Er3+/Yb3+ particles, the Temperature sensing performance of the NaYF4:Er3+/Yb3+ shell did not become worse due to the presence of NaYF4:Sm3+/Yb3+ core. Furthermore, the photothermal conversion behavior for core-shell nanoparticles was successfully examined by dint of Temperature sensing of the NaYF4:Er3+/Yb3+ shell, and it was found that an excitation-power-density-dependent Temperature increase of up to several tens degrees can be achieved. All the experimental results suggested that the core-shell structure may be an excellent nanocalorifier candidate for advanced Temperature-controllable PTT.
Claire Hodkinson - One of the best experts on this subject based on the ideXlab platform.
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tympanic membrane Temperature as a measure of core Temperature
Archives of Disease in Childhood, 1999Co-Authors: Charmaine Childs, Ruth Harrison, Claire HodkinsonAbstract:BACKGROUND: Ear thermometers are becoming popular as a method for measuring deep body (core) Temperature. AIM: To determine the variability of a single user's tympanic membrane (ear) Temperature measurements. SUBJECTS: Forty-two, afebrile, healthy children, and 20 febrile children with acute burns. RESULTS: In afebrile children measurements made in both ears (and within just a few minutes of each other) differed by as much as 0.6 degree C. Operator measurement error, sw of three consecutive measurements, in the same ear, was 0.13 degree C. In the group of febrile, burned children, core Temperature was measured hourly at a number of sites (ear, rectum, axilla, bladder). A peak in core Temperature occurred approximately 10-12 hours after the burn. Measurement error was calculated in 14 febrile, burned children with a peak Temperature in excess of 38 degrees C. For the left ear, measurement error was 0.19 degree C and for the right ear, 0.11 degree C. In the febrile children agreement between the ears was poor. The limits of agreement were 0.4 degree C to -0.8 degree C. It was not possible to predict the occasions when the Temperature differences between the ears would be large or small. CONCLUSIONS: The measurement error of one recording from the next is probably acceptable at about 0.1 to 0.2 degree C. To limit the variations in Temperature of one ear to the other, measurements should be restricted to one of the ears whenever possible and the same ear used throughout the Temperature monitoring period. Nurses and parents should take more than one Temperature Reading from the same ear whenever possible.
Ishag Adam - One of the best experts on this subject based on the ideXlab platform.
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accuracy of tympanic Temperature measurement using an infrared tympanic membrane thermometer
BMC Research Notes, 2013Co-Authors: Gasim I. Gasim, Imad R. Musa, Mohamed T Abdien, Ishag AdamAbstract:During investigation and diagnosis of patients, accurate Temperature measurement is of great importance. The advantages of tympanic membrane thermometry are speed (Temperature Reading available within seconds), safety, and ease of use. The aim of this study was to compare the accuracy of infrared tympanic thermometers in comparison to mercury thermometers in measurement of body Temperature. Axillary and tympanic Temperature was measured simultaneously in consecutive patients using mercury glass and infrared tympanic thermometers at Omdurman Hospital, Sudan during October 2012. In total, Temperature was measured in 174 patients, 95 of whom (54.6%) were male. The mean (SD) patient age and weight was 33.18 (25.07) years and 52.13 (69.85) kg. There was no significant difference in mean (SD) Temperature measurement between mercury and infrared tympanic membrane thermometers, 37.29°C (0.91) versus 37.38°C (0.95), P = 0.373, respectively. There was a significant positive correlation between axillary and tympanic body Temperature measurements (r = 0.697, P < 0.001). The mean difference between the two Readings (with limits of agreements) was - 0.093 (−0.20; 0.02) °C. In this study, tympanic membrane thermometry is as reliable and accurate as axillary mercury glass thermometry. Thus, tympanic thermometry can be used in clinical practice, especially in the emergency setting, where ease of use and speed of obtaining the Temperature Reading are important.
Lili Tong - One of the best experts on this subject based on the ideXlab platform.
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nayf 4 sm 3 yb 3 nayf 4 er 3 yb 3 core shell structured nanocalorifier with optical Temperature probe
Optics Express, 2017Co-Authors: Lili Tong, Jinsu Zhang, Jiashi Sun, Hui Zheng, Yanqiu Zhang, Xiangqing Zhang, Ruinian Hua, Haiping Xia, Baojiu ChenAbstract:A core-shell structure with a NaYF4:Sm3+/Yb3+ core for photothermal conversion nanocalorifier and a NaYF4:Er3+/Yb3+ shell as Temperature probe for potential applications in photothermal therapy (PTT) were synthesized by a thermal decomposition technique of rare-earth oleate complexes. The optical Temperature Reading-out property for the NaYF4:Sm3+/Yb3+@NaYF4:Er3+/Yb3+ core-shell structure was systematically investigated and it was found that in comparison with pure NaYF4:Er3+/Yb3+ particles, the Temperature sensing performance of the NaYF4:Er3+/Yb3+ shell did not become worse due to the presence of NaYF4:Sm3+/Yb3+ core. Furthermore, the photothermal conversion behavior for core-shell nanoparticles was successfully examined by dint of Temperature sensing of the NaYF4:Er3+/Yb3+ shell, and it was found that an excitation-power-density-dependent Temperature increase of up to several tens degrees can be achieved. All the experimental results suggested that the core-shell structure may be an excellent nanocalorifier candidate for advanced Temperature-controllable PTT.
Yuetzu Yang - One of the best experts on this subject based on the ideXlab platform.
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a 2 d inverse method for simultaneous estimation of the inlet Temperature and wall heat flux in a laminar circular duct flow
Numerical Heat Transfer Part A-applications, 1998Co-Authors: Paotung Hsu, Chaokuang Chen, Yuetzu YangAbstract:A two-dimensional inverse analysis is presented for the estimation of the inlet Temperature of the fluid flow and wall heat flux in a thermally developing hydrodynamically developed laminar flow in a duct. The inverse analysis is based on the Temperature Reading located at a stream inside the duct at several different points. At the beginning of the study, finite difference methods are employed to discretize the problem, and then a linear inverse model is constructed to identify the unknown conditions. The present approach is to rearrange the matrix forms of the differential governing equation and estimate the inlet Temperature of the fluid and unknown surface conditions of the duct. The linear least squares method is adopted to find the solution. The advantage of applying this method in inverse analysis is that no prior information is needed on the functional form of the unknown quantities, no initial guess is required, and the number of iterations in the calculation process is limited to one. The effect...
