نتایج جستجو برای: throat area
تعداد نتایج: 593774 فیلتر نتایج به سال:
Understanding the precise structure of pore space is integral to fully understanding flow through porous media. This understanding is essential in research on single-phase incompressible flow in situations where another dominant flow factor is the fluid-wall surface tension [1]. Determining the relationship of pore structure and bulk flow properties is complicated since the structure of pore sp...
Introduction & Objective: β- hemolytic group A streptococcus is the most common cause of acute bacterial pharyngitis in children. Due to the high incidence of this disease and it's difficult diagnosis , we decided to compare clinical scoring and throat cultures for diagnosis of streptococcal pharyngitis. Materials & Methods: This cross-sectional analytic study was done on 3-16 year old patie...
Using heat shield, especially in throat area has a significant effect on combustion chamber pressure and thermal efficiency of solid fuel engines. Precise prediction of the regression of throat area for different pressures, will lead to optimal design of the motors, specifically for those of long burnout times. In this work, erosion of graphite nozzles employed in solid propellant motors with a...
OBJECTIVE To assess the association between features of acute sore throat and the growth of streptococci from culturing a throat swab. DESIGN Diagnostic cohort. SETTING UK general practices. PARTICIPANTS Patients aged 5 or over presenting with an acute sore throat. Patients were recruited for a second cohort (cohort 2, n=517) consecutively after the first (cohort 1, n=606) from similar pr...
We derive the low energy absorption cross section of minimal scalars for a very generic class of geometries, that includes, among others, black holes, strings, p-branes, as well as intersecting brane configurations. The scalar field can be absorbed across a regular surface (a horizon) of finite area, or across a zero area throat, which may be singular or regular. Then we focus on some particula...
[1] For the first time precise measurements obtained using Super Dual Auroral Radar Network (SuperDARN) radars are used to quantify the temporal variability in the convection velocity and identify the cause of the variations for a particular event located in the vicinity of the cusp. Using SuperDARN line-of-sight (LOS) Doppler velocities near 1200 magnetic local time and a standard fitting tech...
Traversable wormholes have traditionally been viewed as intrinsically topological entities in some multiply connected spacetime. Here, we show that topology is too limited a tool to accurately characterize a generic traversable wormhole: in general one needs geometric information to detect the presence of a wormhole, or more precisely to locate the wormhole throat. For an arbitrary static space...
BACKGROUND The addition of heated humidification to CPAP has been shown to improve nasal adverse effects in subjects with obstructive sleep apnea (OSA). However, current data regarding improvement in CPAP adherence is conflicting. Furthermore, there are no data from a tropical climate area with a high humidity level. METHODS In this prospective randomized crossover study conducted in Thailand...
introduction: postoperative sore throat is a common complaint in patients with endotracheal intubation and has potentially dangerous complications. this randomized controlled trial study investigated the incidence of postoperative sore throat after general anesthesia when betamethasone gel is applied to a tracheal tube compared with when iv dexamethasone is prescribed. materials and methods: ...
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