Results 41 to 50 of about 17,166 (262)

The Nitroglycerin-Flicker Test [PDF]

Circulation, 1951
The nitroglycerin-flicker test, as suggested and modified by Krasno and Ivy, has been used to test normal individuals and patients with a variety of cardiovascular diseases. The hypothesis that this test would serve as an index of the presence of vascular disease or spasm elsewhere in the body than the retina was explored.
E L, FOX, I S, WRIGHT
openaire   +2 more sources

Assessing the Sensitivity and the Clinical Impact of the 2023 American College of Rheumatology/EULAR Classification Criteria in Obstetric Antiphospholid Syndrome: Findings From a Multicenter Italian Cohort With a Long‐Term Follow‐Up

Arthritis Care &Research, EarlyView.
Objective The aim of this study was to evaluate the sensitivity of the 2023 American College of Rheumatology (ACR)/EULAR classification criteria for antiphospholipid syndrome (APS) in a real‐world cohort of women diagnosed with primary obstetric APS (oAPS) and to assess their ability to identify patients at risk of future pregnancy complications ...
Francesca Ruffilli, Cecilia Nalli, Francesca Crisafulli, Carlo Garaffoni, Marcello Govoni, Giulia Voltarel, Alba C. Pozzi, Beatrice Maranini, Ettore Silvagni, Alessandra Bortoluzzi, Angela Tincani   +10 more
wiley   +1 more source

A Cerebral Basis for Visual Discomfort and Visual Stress

Vision
Visual discomfort or visual stress is an uncomfortable subjective experience that occurs in response to specific visual stimuli. It affects a large proportion of the population to various degrees, disproportionately impacting those with heightened ...
Paul B. Hibbard, Peter Allen, Jordi M. Asher, Katherine Batey, Beverley Burke, Jason J. Braithwaite, Geoff G. Cole, Caelan Dow, Bruce J. W. Evans, Anna Franklin, Sarah M. Haigh, Hillevi Hemphälä, Ian Hosking, Andrew Keyes, Chan-su Lee, Ute Leonards, Cathy Manning, John Maule, Naomi Miller, Karen Monet, Louise O’Hare, Olivier Penacchio, Gordon T. Plant, Georgie Powell, Alice Price, Andrew J. Schofield, Miroslav Slouka, Petroc Sumner, Cleo Valentine, Thomas Wilcockson, Sanae Yoshimoto, Arnold J. Wilkins   +31 more
doaj   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Effects of the Photovoltaic Distributed Generation on Electricity Distribution System Voltage - Updated Review

Brazilian Archives of Biology and Technology, 2018
Concerns about the environment and a growing demand for electricity have led to the intensive search for renewable energy sources. Photovoltaic solar energy, in the form of distributed generation, has shown a very high growth rate to an extent that in ...
Celso Fabrício Melo Júnior, Aline F. Cordeiro Waenga, Dayana A. Ferreira Pinto   +2 more
doaj   +1 more source

Detection method of interharmonic pairs-caused voltage peak fluctuation flicker

Energy Reports, 2022
Interharmonics of high frequency will cause voltage’s peak value fluctuation, which will result in flicker of fluorescent lamp and LED lamp. To realize accurate evaluation of the flicker, a method based on multiresolution S-transform is proposed to ...
Jianxun Wang, Jie Zhao, Hanchen Xiao, Chao Zuo, Zhiwei Chen   +4 more
doaj   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Investigation of Reactive Power Control Effects on Flicker and Harmonics Emission of a DFIG Wind Turbine [PDF]

Journal of Intelligent Procedures in Electrical Technology, 2013
One of the most important power quality aspects in wind farms is voltage fluctuation or flicker which should be investigated due to the nature of wind speed variations. These variations result in power and voltage fluctuations at the load bus.
Amir Nagizadeh Ghoogdareh, Aref Doroudi, Mohammad Poormonfared Azimi   +2 more
doaj  

Assessment of the effect on the human body of the flicker of OLED displays of smartphones

Journal of Information Display, 2021
This paper considers the effects on the human body of the flicker of organic light-emitting diode (OLED) displays. Related studies have been conducted due to reports of cases of adverse health effects of the use of artificial lighting.
Minhyuk Kim
doaj   +1 more source