نتایج جستجو برای: saturation effect
تعداد نتایج: 1681601 فیلتر نتایج به سال:
BACKGROUND The placement of rubber dam has the potential to alter the airflow through nasal and oral cavities. Pediatric dentist should be aware whether the use of a rubber dam affects the oxygen saturation (SpO2) in children. To assess the effect of rubber dam on arterial blood SpO2 in children of 6-12 years age. MATERIALS AND METHODS Totally, 60 ASA Class I patients of 6-12 years age, rando...
Saturation spectra of the excitons confined and localized at several kinds of stacking disorders in layered crystal Bi13 are studied. The quasi-two dimensional exciton localized at the stacking fault interface does not saturate its absorption strength below the density of 105W/cm2 due to the large binding energy and the lateral center-of-mass motion along the interface. On the exciton system as...
In the traditional color adjustment approach, people tried to separately adjust the luminance and saturation. This approach makes the color over-saturate very easily and makes the image look unnatural. In this study, we try to use the concept of exposure compensation to simulate the brightness changes and to find the relationship among luminance, saturation, and hue. The simulation indicates th...
ao F. Zhang niversity of Wisconsin-Milwaukee epartment of Electrical Engineering and Computer Science 200 N Cramer Street ilwaukee, Wisconsin 53201 Abstract. We investigate the saturation effect, which describes the violation of the linearity between the measured photoacoustic amplitude and the object’s optical absorption coefficient in functional photoacoustic imaging when the optical absorpti...
Iron oxide nanoparticles were synthesized by coprecipitation method using ammonia as precipitation agent. Most researchers usually add ammonia into the iron salt solution but in this work the salt solution drop wise has been added to the ammonia and the new obtained results were compared with those of other researches. Magnetic properties of nanoparticles were measured by VSM. The effect of rea...
BACKGROUND In-vivo quantification of cardiac perfusion is of great research and clinical value. The dual-bolus strategy is universally used in clinical protocols but has known limitations. The dual-saturation acquisition strategy has been proposed as a more accurate alternative, but has not been validated across the wide range of perfusion rates encountered clinically. Dual-saturation acquisiti...
Here we test the hypothesis that high-altitude native resident Tibetan women with genotypes for high oxygen saturation of hemoglobin, and thus less physiological hypoxic stress, have higher Darwinian fitness than women with low oxygen saturation genotypes. Oxygen saturation and genealogical data were collected from residents of 905 households in 14 villages at altitudes of 3,800-4,200 m in the ...
In this paper, it will be shown that the effect of color saturation and hue on image quality can be described in a very simple way. From measurements given in this paper it appears that there is a remarkable agreement between color saturation and gamma with respect to their effect on image quality. From an earlier investigation it was found that image quality increases with the square root of g...
Inhaled sympathomimetic agents are often used in bronchiolitis with little objective evidence of benefit. The arterial oxygen saturation (SaO2) reflects the adequacy of ventilation-perfusion balance. The aim of the current study was to determine the effect of inhaled salbutamol on SaO2. In a randomised, double blind study, 21 infants, admitted with bronchiolitis positive for respiratory syncyti...
Iron oxide nanoparticles were synthesized by coprecipitation method using ammonia as precipitation agent. Most researchers usually add ammonia into the iron salt solution but in this work the salt solution drop wise has been added to the ammonia and the new obtained results were compared with those of other researches. Magnetic properties of nanoparticles were measured by VSM. The effect of rea...
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