Results 11 to 20 of about 3,560,028 (306)

Hydraulic Calculation of Copper Pipelines for Heating and Internal Gas Supply Systems

Наука и техника, 2018
Copper pipelines are widely used while designing modern heating systems, water and gas supply of residential buildings and these pipelines have a number of advantages in comparison with steel and plastic pipelines.
M. A. Rutkowski, A. S. Shybeka, K. I. Halynia   +2 more
doaj   +1 more source

Machine Learning Methods for Herschel–Bulkley Fluids in Annulus: Pressure Drop Predictions and Algorithm Performance Evaluation

Applied Sciences, 2020
Accurate measurement of pressure drop in energy sectors especially oil and gas exploration is a challenging and crucial parameter for optimization of the extraction process.
Abhishek Kumar, Syahrir Ridha, Tarek Ganet, Pandian Vasant, Suhaib Umer Ilyas   +4 more
doaj   +1 more source

Synthetic Vasopressin and Oxytocin Analogs and Their Potential Use in Hemorrhagic, Traumatic and Septic Shock: A Personal Perspective [PDF]

, 2017
As one of us has stated many years ago, “shock is a significant and sustained loss of effective circulating blood volume. It will eventuate in hypoperfusion of critical peripheral tissues, thus leading to a deficit in transcapillary exchange function in ...
Altura BM, Carella A, Gebrewold A, Altura BT   +3 more
core   +1 more source

Teaching Fluid Mechanics and Thermodynamics Simultaneously through Pipeline Flow Experiments

Fluids, 2019
Entropy and entropy generation are abstract and illusive concepts for undergraduate students. In general, students find it difficult to visualize entropy generation in real (irreversible) processes, especially at a mechanistic level.
Rajinder Pal
doaj   +1 more source

A cohort study of duplex Doppler examinations of the carotid artery in primary open angle glaucoma [PDF]

, 2014
Objectives To explore the possibility of pathological change in the common carotid artery at the bifurcation and in the internal carotid artery beyond the bifurcation which could contribute to a reduced diastolic pressure as observed in primary open ...
Aldoori, M. I., Marmion, V. J., Stephenson, John, Woodcock, J. P.   +3 more
core   +1 more source

Metal enrichment of the intra-cluster medium over a Hubble time for merging and relaxed galaxy clusters [PDF]

, 2007
We investigate the efficiency of galactic mass loss, triggered by ram-pressure stripping and galactic winds of cluster galaxies, on the chemical enrichment of the intra-cluster medium (ICM).
Arnaud, Bagchi, Balestra, Bruzual, Cayatte, Collela, Crowl, De Filippis, De Grandi, De Lucia, De Young, Domainko, Domainko, Durret, E. van Kampen, Finoguenov, Fukazawa, Gavazzi, Gitti, Gnedin, Haines, Hayakawa, Hayakawa, Heckman, Hoffman, Hopkins, J. Weratschnig, Kapferer, Kenney, Koopmann, M. Mair, M. Ruffert, Martin, Matteucci, Mo, Moll, Nagashima, O'Sullivan, Pratt, Romeo, Ruffert, S. Kimeswenger, S. Schindler, Sanders, Sauvageot, Scannapieco, Schindler, Schmidt, Springel, Springel, Strickland, Sutherland, T. Kronberger, Tenorio-Tagle, Tornatore, van Kampen, Veilleux, Veilleux, Vikhlinin, Vollmer, Vollmer, Vollmer, Vollmer, Vollmer, W. Domainko, W. Kapferer, Werner   +66 more
core   +2 more sources

Annular Frictional Pressure Losses for Drilling Fluids [PDF]

Journal of Energy Resources Technology, 2020
Abstract In the paper, it is demonstrated how a Herschel–Bulkley fluid model, where the parameters are selected from relevant shear rate range of the flow and are parametrically independent, can be used for pressure loss calculations. The model is found to provide adequate pressure loss predictions for axial flow in an annulus where the ...
Saasen, Arild, Ytrehus, Jan David, Lund, Bjørnar   +2 more
openaire   +5 more sources

The photochemistry of carbon monoxide in the stratosphere and mesosphere evaluated from observations by the Microwave Limb Sounder on the Aura satellite [PDF]

, 2010
The photochemical production and loss rates for carbon monoxide (CO) in the stratosphere and mesosphere are evaluated using measurements from the Aura Microwave Limb Sounder (MLS) and the Atmospheric Chemistry Experiment-Fourier Transform Spectrometer ...
A. Lambert, Abbas, Allen, Allen, Allen, Allen, Barnes, Bernath, Boone, Brasseur, Brueckner, C. D. Boone, Canty, Canty, Clancy, de Zafra, Forkman, Froidevaux, Froidevaux, G. L. Manney, Grossman, H. C. Pumphrey, H. M. Pickett, Hays, Huang, Inn, Jin, Jucks, K. A. Walker, K. Minschwaner, Kumer, L. Froidevaux, Lambert, Li, M. J. Schwartz, Minschwaner, N. J. Livesey, Nassar, P. F. Bernath, Parkinson, Pickett, Pickett, Pumphrey, Pumphrey, Rinsland, Rusch, Russell, Ruth, Sachse, Sander, Schneider, Schoeberl, Schwartz, Solomon, Wofsy, Yoshino   +55 more
core   +2 more sources

Review on the aerodynamics of intermediate compressor duct

Journal of Mechanical Engineering and Sciences, 2020
In a turbofan engine, the air is brought from the low to the high-pressure compressor through an intermediate compressor duct. Weight and design space limitations impel to its design as an S-shaped. Despite it, the intermediate duct has to guide the flow
M. Sharma, B.D. Baloni
doaj   +1 more source

Propagation of stall in a compressor blade row [PDF]

, 1955
Recent experimental observations on compressors, in particular those of Rannie and Iura, have clarified some features of the phenomenon of stall propagation.
Marble, Frank E.
core   +1 more source