Results 31 to 40 of about 311,710 (262)

Optimization of Flat Ends in Pressure Vessels [PDF]

Materials, 2019
The application of flat ends in pressure boilers is inevitably associated with the presence of stress concentration, which is observed in the vicinity of the junction of the cylinder and the closing flat plate. The analyzed flat end plates with stress relief grooves fall into the group of solutions recognized by the respective Standards of Calculations
Bogdan Szybiński, Paweł J. Romanowicz
openaire   +2 more sources

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang, Huiying Wang, Zhizheng Zhuo, Ai Guo, Ke Lv, Decai Tian, Chao Chai, Yunyun Duan, Shuang Xia   +8 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

Numerical Study of Thermophoretic and Inertial Deposition of Aerosol Particles on a Heat Exchanger Tube Under Flue Gas Conditions

Science and Technology of Nuclear Installations
Recovering low-grade waste heat from coal-fired flue gas is crucial for improving power plant efficiency and reducing emissions. However, substantial aerosol deposition on heat exchanger tubes undermines long-term system performance.
Xizhen Ma, Chenyi Huang, Yushen Lin, Zhiang Han, Kaixin Huang, Hui Liang, Ruiying Zhu, Jiang Ma   +7 more
doaj   +1 more source

Investigation of the microstructure evolution in TP347HFG austenitic steel at 700°C and its characterization method

High Temperature Materials and Processes, 2021
This article reports the microstructure evolution in TP347HFG austenitic steel during the aging process. The experiments were carried out at 700°C with different aging time from 500 to 3,650 h.
Zhang Yuetao, Yuan Tingbi, Shao Yawei, Wang Xiao   +3 more
doaj   +1 more source

Pressure fluctuation measurement in pressure vessels

IOP Conference Series: Earth and Environmental Science, 2022
Abstract Pressure vessels are mechanical devices that act as a reservoir of fluids at pressure more or less than atmospheric pressure. This research focuses on the application of the pressure vessel for hydraulic testing of hydro turbines to maintain uniform velocity profile and to suppress the pressure surge in the pipeline.
A Kapali, H P Neopane, S Chitrakar, K P Shrestha, P Sapkota   +4 more
openaire   +1 more source

Acute Kidney Injury After Mechanical Thrombectomy for Stroke in Patients With Pre‐Existing Renal Impairment

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Acute kidney injury (AKI) is a common but often underrecognized complication in ischemic stroke patients undergoing mechanical thrombectomy, particularly among those with pre‐existing renal impairment. This study evaluated the incidence, risk factors, and clinical impact of AKI in this high‐risk population.
Michał Borończyk, Marcel Pilarek, Emilia Jaworska, Natalia Kardas, Oliwia Barnaś, Julia Woźniak, Iga Machała, Julia Węgrzynek‐Gallina, Joanna Siuda, Anna Hawrot‐Kawecka, Anetta Lasek‐Bal   +10 more
wiley   +1 more source

Simulation of the Pressure Vessel Saddle Thickness Effect to Stress Distribution

Mekanika, 2021
Cylinder pressure vessel is a device that is used to process industry, power industry, oil industry, and gas industry. Structure of pressure vessel has complex design that is used to accommodate force, temperature, internal pressure loading, etc ...
Krisdiyanto Krisdiyanto
doaj   +1 more source

White Matter Hyperintensity Burden and Short‐Interval Change Associated With Sleep Apnoea in the UK Biobank

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Purpose White matter hyperintensities (WMH) are a core neuroimaging marker of cerebral small vessel disease (CSVD). Sleep apnoea (SA) is a recognized vascular risk factor, but its associations with regional WMH burden, short‐interval WMH change and cognitive performance in population‐based cohorts remain incompletely defined. We
Peng Cheng, Diego Z. Carvalho, Shahid Karim, Anwar Chahal, Virend K. Somers   +4 more
wiley   +1 more source

Optimization design of nickel-titanium shape memory alloy anti-loose gaskets based on ABAQUS numerical simulation

Materials Research Express
This paper addressed the issue of maintaining long-term stability under complex conditions with traditional anti-loose gaskets used in the power industry. It proposed a design for an anti-loose gasket, exploiting the super-elasticity, shape memory effect,
Tianxiang Xue, Xinmei Li, Shuai Suo, Wen Li, Yanjiang Bu, Dongting Wu   +5 more
doaj   +1 more source