Results 81 to 90 of about 137,921 (304)

INDIRECT METHODS OF MEASURING FLОW RATE AND PRESSURE DROP OF ROTARY BLOOD PUMPS

Вестник трансплантологии и искусственных органов, 2015
The article describes complex software to calculate the main parameters of the axial pump (pressure drop and flow rate) on the basis of an analysis of its technical characteristics (current consumption and pump speed).
G. P. Itkin, I. A. Filatov, K. N. Dozorov, A. V. Adaskin   +3 more
doaj   +1 more source

Tuning the electron energy by controlling the density perturbation position in laser plasma accelerators

, 2012
A density perturbation produced in an underdense plasma was used to improve the quality of electron bunches produced in the laser-plasma wakefield acceleration scheme.
Bulanov S. V., C. Thaury, G. Lambert, K. T. Phuoc, M. Bloom, P. Brijesh, S. Corde, S. Kneip, S. P. D. Mangles, V. Malka   +9 more
core   +3 more sources

Estimation of an Axial Thrust of Centrifugal Pumps and Pump-Turbines

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 2007
It is still very difficult to estimate the axial thrust of pump-turbines or of centrifugal pumps with high accuracy. Here we developed a simple method to calculate the pressure distribution and axial thrust of pumps and turbines for very wide range of Reynolds number.
Jun MATSUI, Junichi KUROKAWA, Yoshitaka ITO   +2 more
openaire   +2 more sources

Long‐Term Follow‐Up of Chemotherapy‐Associated Biological Aging in Women With Early Breast Cancer

Aging and Cancer, EarlyView.
Women threated with adjuvant chemotherapy for early breast cancer have sustained long‐term increase in p16INK4a,, a robust marker of cell senescence, suggesting a chemotherapy‐associated age acceleration. p16INK4a as well as other biomarkers may identify patients at greatest risk for senescence‐related diseases of aging.
Hyman B. Muss, Alexis C. Wardell, Allison M. Deal, Kirsten A. Nyrop, Allison Ross, Yara G. Abdou, Jeffrey D. Aldrich, Lisa A. Cary, E. Claire Dees, Katherine E. Reeder‐Hayes, Emily M. Ray, Natalia Mitin, Denis Tsygankov   +12 more
wiley   +1 more source

Liquid rocket engine axial-flow turbopumps [PDF]

The axial pump is considered in terms of the total turbopump assembly. Stage hydrodynamic design, pump rotor assembly, pump materials for liquid hydrogen applications, and safety factors as utilized in state of the art pumps are among the topics ...
Farquhar, J., Huppert, M. C., Keller, R. B., Jr., Scheer, D. D., Viteri, F.   +4 more
core   +1 more source

Finite element calculations and experimental verification of the unsteady potential flow in a centrifugal volute pump [PDF]

, 1994
In this paper we present a finite-element-based methode for the calculation of the unsteady potential flow in rotor/stator configurations. A numerical algorithm was developed to calculate the two-dimensional flow through a centrifugal volute pump, taking
Badie, Badie, Corba, Dong, Eck, Gorelov, Greenwood, Greitzer, Iino, Iversen, Kemp, Miner, Miner, Morfiadakis, Norrie, Parker, Platzer, Segal, Tsujimoto, van den Braembussche   +19 more
core   +2 more sources

CX3CL1 in Early Detection of Alzheimer's Disease: Plasma Dynamics Across Age and Disease Stages

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Backgrounds Alzheimer's disease (AD) is characterized by amyloid‐beta plaques, tau tangles, and neuroinflammation. C‐X3‐C motif chemokine ligand 1 (CX3CL1, also known as fractalkine), a neuroimmune chemokine implicated in AD pathogenesis, shows inconsistent alterations in plasma/serum across studies.
Ling Wang, Yujie Liu, Fei Li, Xuelin Li, Lanlan Li, Jie Zhang, Yali Xu   +6 more
wiley   +1 more source

A Depolarizing Leak in Sodium Bicarbonate Cotransporter NBCe1 Causes Brain Edema

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives SLC4A4 encodes electrogenic sodium bicarbonate cotransporter NBCe1, prominently expressed in kidney and brain. Recessive loss‐of‐function variants in SLC4A4 cause proximal renal tubular acidosis, no brain edema. In the brain, NBCe1 is expressed by astrocytes, where it regulates pH and mediates astrocyte volume changes.
Quinty Bisseling, Mark D. Parker, Sven Kerst, Richard A. Pasternack, Jacob Tondreau, Marjolein Breur, Gemma M. van Rooijen‐van Leeuwen, Davide Tonduti, Ettore Salsano, Alejandra Darling, Joanna A. E. van Wijk, Susanna Törnroth‐Horsefield, Marianna Bugiani, Petra J. W. Pouwels, Quinten Waisfisz, Marjo S. van der Knaap, Rogier Min   +16 more
wiley   +1 more source

Pump Indicator Diagram Simulation Model based on Measured Axial Load of Tubing Head

Shiyou jixie, 2016
Pump diagnosis technique of rod pumped well is to convert polished rod indicator diagram into pump indicator diagram by using wave equation for longitudinal vibration of sucker rod string on the basis of measured polished rod indicator diagram.
Yao Chundong, Zhao Ran, Zhang Hongchao, Li Pengfei, Sun Liang   +4 more
doaj  

Recurrent Hypothermia and Autonomic Dysfunction Secondary to Shapiro Syndrome

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT A 44‐year‐old man presented with recurrent hypothermia, diaphoresis and hypertension. Extensive investigation for infectious, inflammatory, metabolic and endocrine aetiologies was negative. MR scan of the brain demonstrated no lesions but revealed callosal dysgenesis, consistent with Shapiro syndrome.
Naveen Kumar, Jeremy Johnson, Susanne Watkins, Eoin Mulroy   +3 more
wiley   +1 more source