Results 21 to 30 of about 11,840,309 (376)

Influence of Axial Position of Self-Circulating Casing Treatment on the Performances of a Centrifugal Pump at Low Mass Flow Conditions [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
Centrifugal pumps often deviate from its design condi-tion during its operation and work at low mass flow conditions. Under such circumstances, unstable flow phenomena may be generated, affecting the efficient and stable operation of pumps. In this paper,
H. Liu   +6 more
doaj   +1 more source

A suitable case for treatment [PDF]

open access: yesQJM, 2007
In August 1982, I finished a six-month stint as a senior house officer in obstetrics, and brought my career as a hospital doctor to an end. Since then, I have worked mainly in general practice and as an educator. I have only had the typical contacts that you would expect a GP to have with the world of hospital medicine.
openaire   +5 more sources

Axial transonic compressor performance enhancement with circumferential grooves [PDF]

open access: yesMechanical Sciences, 2020
Casing treatment has been broadly used as a prudent passive flow control technique to improve the stall margin with a small drop in efficiency. The effect of grooves in certain details is overlooked however, different grooves shape (angels and location ...
N. Ahmad   +5 more
doaj   +1 more source

The Differential Entropy Generation Rate as a Unified Measure for Both the Stability and Efficiency of an Axial Compressor

open access: yesMachines, 2023
Stability and efficiency are the two most important performance indicators of highly loaded aviation axial compressors; however, they often cannot be achieved simultaneously.
Jingyuan Ma, Feng Lin
doaj   +1 more source

Childhood: a suitable case for treatment? [PDF]

open access: yesThe Lancet Psychiatry, 2015
We examine the contemporary debate on attention deficit hyperactivity disorder, in which concerns about medicalisation and overuse of drug treatments are paramount. We show medicalisation in attention deficit hyperactivity disorder to be a complex issue that requires systematic research to be properly understood.
Singh, Ilina, Wessely, Simon
openaire   +3 more sources

Investigation of Design Features of Compressor Casing Treatment

open access: yesArchive of Mechanical Engineering, 2014
Obróbka obudowy kompresora, polegajaca na wykonaniu obwodowych rowków ponad szczytem łopaty wirnika, jest stosowana dla poprawy własciwosci roboczych kompresora.
Nezym Vitaliy
doaj   +1 more source

Method of Improving Stability of a Highly-Loaded Axial Compressor Stage by Coupling Different Casing Treatments [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
Casing treatment is a powerful method for improving the stability of aircraft compressors. An optimized slot-type casing treatment was tested on the first rotor of a highly-loaded two-stage compressor, and the results showed that the casing treatment ...
Y. Chen, A. Lin, H. Zhang, W. Chu
doaj   +1 more source

Home - About - Disclaimer - Privacy