منابع مشابه
Gravitational Collapse in Constant Potential Bath
We analyse here the gravitational collapse of directed null radiation in a background with a constant potential such as one produced by a star system like galaxy in which the collapsing object is immersed. Both naked singularities and black holes are shown to be developing as the final outcome of the collapse. An interesting feature that emerges is that a part of the naked singularity spectrum ...
متن کاملDetermining Constant Optical Flow
The original optical flow algorithm [1] dealt with a flow field that could vary from place to place in the image, as would typically occur when a camera is moved through a three-dimensional environment—or if objects moved in front of a fixed camera. A related, but simpler problem, is that of recovering the motion of an image, all parts of which move with the same velocity (section 4.3 in [2]). ...
متن کاملEffects of normothermic organ bath and verapamil-nitroglycerin solution alone or in combination on the blood flow of radial artery.
OBJECTIVE Radial artery pedicle tissue cooling during harvesting is one of the major causes of vasospasm. We aimed to compare the effects of the pedicle rewarming method, normothermic organ bath, and one of the most preferred topical antispasmodic agents, verapamil-nitroglycerin solution alone or in combination on the blood flow of radial artery. METHODS Consecutively randomized patients (n=8...
متن کاملA method for bubble volume measurement under constant flow conditions in gas–liquid two-phase flow
Measuring the volume of a bubble, especially at its detachment, is a basic subject in gas-liquid two-phase flow research. A new indirect method for this measurement under constant flow conditions is presented. An electronic device is designed and constructed based on laser beam intensity. This device calculates the frequency of the bubble formation by measuring the total time of the formation p...
متن کاملRespiratory mechanics with constant flow inspiration. A comparison of two measurement techniques.
Resperatory compliance and resistance were measured during positive pressure ventilation in anaesthtized, paralysed dogs. Airway pressures measured during constant-flow inspiration allowed the calculation of pulmonary and chest-wall resistances, and static and non-static compliances. Contiguous studies of dynamic compliance and resistance allowed comparison of the two techniques, and the level ...
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ژورنال
عنوان ژورنال: British Journal of Pharmacology and Chemotherapy
سال: 1949
ISSN: 0366-0826
DOI: 10.1111/j.1476-5381.1949.tb00522.x