An inclined air-curtain (IAC) fume hood was developed and characterized using the laser-assisted smoke flow visualization technique and tracer-gas (sulphur hexafluoride) concentration detection method. The IAC fume hood features four innovative design elements: (i) an elongated suction slot installed at the hood roof with an offset towards the rear wall, (ii) an elongated up-blowing planar jet ...

To investigate the effects of vehicle impact velocity and front-end structure on the dynamic responses of child pedestrians, an extensive parametric study was carried out using two child mathematical models at 6 and 15 years old. The effect of the vehicle impact velocity was studied at 30, 40, and 50 km/h in terms of the head linear velocity, impact angle, and head angular velocity as well as v...

BackgroundSeveral beneficial effects of non-nutritive sucking in infants, including the physiological stability, relaxation, better transition from tube feeding to oral feeding have been reported. But its effect on oxygen saturation in neonates under the Nasal Continuous Positive Airway Pressure (NCPAPو (is not so clear. This study aimed to investigate the effects of non-nutritive sucking on tr...

Exposures to diacetyl, a primary ingredient of butter flavoring, have been shown to cause respiratory disease among workers who mix flavorings. This study focused on evaluating ventilation controls designed to reduce emissions from the flavor mixing tanks, the major source of diacetyl in the plants. Five exhaust hood configurations were evaluated in the laboratory: standard hinged lid-opened, s...

Despite advances in neonatal care, the rate of oxygen dependence at 36 weeks' postmenstrual age or bronchopulmonary dysplasia has not fallen. Neonatologists are increasingly careful to apply ventilation strategies that are gentle to the lung in the neonatal intensive care unit. However, there has not been the same emphasis applying gentle ventilation strategies immediately after birth. A lung-p...

the newborn who is born before terms is a candidate for the development of idiopathic respiratory distress syndrome. the intense hypoxia and acidosis that ensue as the consequence of inadequate alveolar-capillary exchange of oxygen and carbon dioxid may prove fatal antenatal steroid therapy can affect rds (respiratory distress syndrom) and its complications. the newborn before 34 weeks have a s...

KIM, HYUN DJU, AND JOCHEN DUHM. Postnutal decrease in the oxygen a#nity of pig blood induced by red cell 2,3-DPG. Am. J. Physiol. 226(4): 1001-1006. 1974.-Blood and purified hemoglobins obtained from neonatal pigs, l-50 days old, and adult pigs have been examined in terms of intracellular organic phosphate, oxidation rate, Bohr coefficient, and oxygen affinity. It was found that the marked post...

Neonatal intubation is one of the most common procedures performed by neonatologists, however, the procedure is difficult and high risk. Neonates who endure the procedure often experience adverse events, including bradycardia and severe oxygen desaturations. Because of low first attempt success rates, neonates are often subjected to multiple intubation attempts before the endotracheal tube is s...