Results 251 to 260 of about 2,404,496 (308)

Flow Resistance in Tracheotomy Tubes

Annals of Otology, Rhinology & Laryngology, 1973
The role of the upper airway (the breathing passage above the trachea) in maintaining the normal junction of the respiratory system has been suggested by previous investigators. During a tracheotomy the upper airway is by-passed by a prosthetic metal or plastic tube which is placed into the trachea through the neck.
J, Cavo, J H, Ogura, D G, Sessions, J R, Nelson   +3 more
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Resistivity of flowing salt solutions

Journal of Applied Physiology, 1965
The longitudinal resistance of salt solutions flowing in rigid tubes is found to change by less than frac14 of 1% for flow velocities up to and exceeding the turbulent rate. The reduced resistance of flowing blood as contrasted to stationary blood is thus not due to altered resistance of the fluid proper rheoencephalogram; blood flow; impedance ...
R, McFee, A R, Spatuzzi
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Flow Resistance of Inertial Debris Flows

Journal of Hydraulic Engineering, 2013
AbstractThis work deals with the evaluation of the most suitable expression for the motion resistance of a debris flow. In particular, it focuses on inertial debris flows, i.e., granular-fluid mixtures in which the particle inertia dominates both the fluid viscous force and turbulence; it provides, through an order-of-magnitude analysis, the criterion ...
BERZI, DIEGO, LARCAN, ENRICO
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Applying flow resistance equations to overland flows

Progress in Physical Geography: Earth and Environment, 2007
Resistance to flow determines routing velocities and must be adequately represented both within stream channels and over hillslopes when making predictions of streamflow and soil erosion. The limiting assumptions inherent in flow resistance equations can be relaxed if the spatial and temporal scale over which they are applied is restricted.
Mark W. Smith, Nicholas J. Cox, Louise J. Bracken   +2 more
openaire   +1 more source

Low flow corrosion resistant ultrasonic flow sensor

2018 3rd IEEE International Conference on Recent Trends in Electronics, Information & Communication Technology (RTEICT), 2018
This paper describes a novel ultrasonic technique which can be used to measure the volumetric flowrate of industrial gases like H2s, Hci, Nh3, NOx, SO 2 , Cl 2 etc. which are highly corrosive in nature. This technique is specifically designed to measure very low flowrates of the above-mentioned gases in an industrial environment.
Akshay Shinde, Sudhir Agashe, Suresh Satpute, Rajendra Tashildar   +3 more
openaire   +1 more source

Continuous-flow, resistive-particle counting

Analytical Biochemistry, 1976
Abstract An apparatus has been designed to allow continuous operation of resistive particle counters. It consists of an injection jet directed at the counting or sensing orifice. Particle-containing electrolyte is pumped through this jet in excess of the volume actually sucked through the sensing orifice.
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Uniform Flow and Flow Resistance

2009
Abstract The central problem of open-channel-flow hydraulics can be stated as follows: Given a channel reach with a specified geometry, material, and slope, what are the relations among flow depth, average velocity, width, and discharge?
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Resistance and Flow

2015
The resistance of a submarine will have a major influence on its top speed, endurance, and acoustic signature. The various components of resistance include: surface friction; form drag; induced drag; and wave making resistance. The latter only becomes important when the submarine is operating on, or close to, the water surface.
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Flux flow resistivity by surface resistance measurements

Journal of Physics C: Solid State Physics, 1970
The surface resistance of three lead-indium alloys (50%, 10%, 3% indium) and two niobium-tantalum allows (10%, 0.8% tantalum) was measured by a resonance method at 2.4 GHz as a function of applied field and temperature in the perpendicular arrangement.
J -le-G Gilchrist, P Monceau
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Effective flow resistivity of highway pavements

The Journal of the Acoustical Society of America, 2013
In the case of highway traffic noise, propagating sound is influenced by the ground over which it travels, whether it is the pavement itself or the ground between the highway and nearby communities. Properly accounting for ground type in modeling can increase accuracy in noise impact determinations and noise abatement design.
Judith L, Rochat, David R, Read
openaire   +2 more sources