Results 131 to 140 of about 909,329 (315)

Hydraulic In Vitro Characterization of MR‐Conditional Blood Pumps

open access: yesArtificial Organs, EarlyView.
Cardiac surgery in neonates requires close placement of cardiopulmonary bypass machines due to limited blood volume, complicating MR compatibility. This study introduces three MR‐conditional blood pump prototypes. None interfered with MRI imaging, though RF‐related sensor effects remain untested.
Dominik T. Schulte   +6 more
wiley   +1 more source

Characteristic Study of a Valve-Matched Flow Single-Piston Miniature Water-Hydraulic Pump

open access: yesIEEE Access
A miniature single-piston valve flow-matching water-hydraulic pump is described in this paper, which designs with a unique double-face cam mechanism to achieve the reciprocating motion of the piston and a new flow-matching valve to adapt to the ...
Tong Xing   +3 more
doaj   +1 more source

Oil cooling system for a gas turbine engine [PDF]

open access: yes, 1977
A gas turbine engine fuel delivery and control system is provided with means to recirculate all fuel in excess fuel control requirements back to the aircraft fuel tank.
Coffinberry, G. A., Kast, H. B.
core   +2 more sources

Flow‐controlled expiration improves gas exchange in anaesthetised horses undergoing orthopaedic surgery

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background Flow‐controlled expiration (FLEX) has been shown to significantly enhance oxygenation in horses under laboratory conditions. Objective This study aims to corroborate these findings by evaluating the effects of FLEX on gas exchange in a randomised clinical trial involving a large population of clinical horses undergoing orthopaedic ...
Klaus Hopster   +5 more
wiley   +1 more source

Facilitating Feeling?: The Relationship between Memorials and Emotions

open access: yesSociological Inquiry, EarlyView.
This article explores if and how national memorials impact collective emotions among local residents, focusing on the National Memorial for Peace and Justice (NMPJ) in Montgomery, Alabama. This understudied question is of sociological importance given the change in federal policy regarding public memorials, particularly the removal of references to ...
Ashley V. Reichelmann, James E. Hawdon
wiley   +1 more source

Isometric training at longer muscle–tendon complex lengths: A potential countermeasure to impaired neuro‐muscle–tendon function during space travel

open access: yesExperimental Physiology, EarlyView.
Abstract Manned space exploration to distant destinations, including Mars, continues to be an aspiration of humankind. Space travel does, however, present many challenges to the body, amongst which adaptation to microgravity is perhaps the largest. For instance, both short and long manned spaceflight missions have shown substantial deleterious effects ...
Gerard McMahon   +2 more
wiley   +1 more source

Optimization study of low lateral force in eccentric ball-piston pumps

open access: yesAdvances in Mechanical Engineering
Eccentric ball piston pump is a high power density hydraulic component. In this paper, a low lateral force design method for an eccentric ball-piston pump is proposed to reduce the lateral force between the ball and the cylinder by slightly inclination ...
JiaHao Wu   +3 more
doaj   +1 more source

Research on Rotor Dynamic Characteristics of High Speed Aviation Piston Pump

open access: yesLubricants
The high-speed aviation piston pump plays a vital role in hydraulic systems in the aviation field. Extremely complex force situations happen during running operations due to the coupling between multiple components, as a result of the overall dynamic ...
Lijun Chen   +5 more
doaj   +1 more source

Solar engine [PDF]

open access: yes, 1982
A solar engine is disclosed in which a fluid, which is first heated and then cooled, forces a piston outward as the fluid is heated, and then draws the piston inward as the fluid is cooled. The piston is connected to a shaft and produces work as it moves
Jensen, R. N.
core   +1 more source

Impaired Windkessel function and proximal aortic stiffness: Linking vascular ageing to cognitive decline

open access: yesExperimental Physiology, EarlyView.
Abstract Central arterial stiffening, particularly of the proximal aorta, is increasingly recognised as a pivotal contributor to cardiovascular disease, dementia, and mild cognitive impairment. Loss of Windkessel function amplifies pulsatile pressure, reduces diastolic perfusion and accelerates microvascular damage in the brain.
Jun Sugawara, Hirofumi Tanaka
wiley   +1 more source

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