Results 21 to 30 of about 10,029 (266)

The study of the influence of stabilizing devices on the pressure pulsations at the free discharge of water through the turbine

MATEC Web of Conferences, 2017
The free discharge through the turbine is applied in the course of construction of hydro power plant or in case of excessive water inflow during floods or emergency situations.
Platonov Dmitry, Minakov Andrey, Dekterev Dmitry   +2 more
doaj   +1 more source

Experimental study of the effect of air injection on the pressure pulsations in the hydro turbine flow path under different operating conditions

MATEC Web of Conferences, 2017
The paper presents an experimental study of oscillatory response in the Francis turbine of hydraulic unit. The experiment was performed on large-scale hydrodynamic test-bench with impeller diameter of 0.3 m.
Minakov Andrey, Platonov Dmitry, Maslennikova Alexandra, Dekterev Dmitry   +3 more
doaj   +1 more source

Identification of possible non-stationary effects in a new type of vortex furnace

EPJ Web of Conferences, 2017
The article presents the results of an experimental study of pressure and velocity pulsations in the model of improved vortex furnace with distributed air supply and vertically oriented nozzles of the secondary blast.
Shadrin Evgeniy Yu., Anufriev Igor S., Papulov Anatoly P.   +2 more
doaj   +1 more source

Pc5 Magnetic Pulsations during the Outer Electron Radiation Belt

International Journal of Technology, 2014
Since the discovery of the radiation belt decades ago, there still remain some fundamental questions as to which one is the mechanism responsible for the acceleration of electrons. Ground-based Pc5 magnetic pulsation during the process of increasing of 2-
L. Muhammad Musafar K, Triyanta, W. Sugitomo, A. Yoshikawa, T. Uozumi   +4 more
doaj   +1 more source

Variations in the cerebrospinal fluid dynamics of the American alligator (Alligator mississippiensis)

Fluids and Barriers of the CNS, 2021
Background Studies of mammalian CSF dynamics have been focused on three things: paravascular flow, pressure and pulsatility, and “bulk” flow; and three (respective) potential motive forces have been identified: vasomotor, cardiac, and ventilatory.
Bruce A. Young, James Adams, Jonathan M. Beary, Kent-Andre Mardal, Robert Schneider, Tatyana Kondrashova   +5 more
doaj   +1 more source

Dynamic Instability Analysis of a Double-Blade Centrifugal Pump

Applied Sciences, 2021
The flow instability of a double-blade centrifugal pump is more serious due to its special design feature with two blades and large flow passages. The dynamic instabilities and pressure pulsations can affect the pump performance and operating lifetime ...
Denghao Wu, Songbao Yao, Renyong Lin, Yun Ren, Peijian Zhou, Yunqing Gu, Jiegang Mou   +6 more
doaj   +1 more source

Suppression of Squeal Noise Excited by the Pressure Pulsation from the Flapper-Nozzle Valve inside a Hydraulic Energy System

Energies, 2018
Squeal noise often occurs in a two-stage electrohydraulic servo-valve, which is an unfavorable issue of modern hydraulic energy systems. The root causes of such noise from the servo-valve are still unclear.
Meng Chen, Dong Xiang, Songjing Li, Changfang Zou   +3 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

Simulation of dynamic processes in hydraulic accumulators

Transport, 2010
The article focuses on pressure pulsations in hydraulic systems, the means reducing them and examines the structure of hydraulic accumulators, including their features and differences.
S. Mamčic, M. Bogdevičius
doaj   +3 more sources