Results 171 to 180 of about 54,390 (293)

PR Interval as a Valuable Predictor of Tilt Table Test Results in Patients With Neurally Mediated Syncope. [PDF]

Ann Noninvasive Electrocardiol
Nikoo MH, Narimani-Javid R, Kamrava A, Shafiei S, Nozhat S, Fatemian H, Asadzadeh A, Motahari Moadab M, Ghanbari F, Arzhangzadeh A.   +9 more
europepmc   +1 more source

Head up tilt table test: a profile and association of hypertension with a positive test

, 2014
Background: Head up tilt test (HUTT) is an arguable gold standard. No data available from Pakistan. The test relies on vasodilatation. Hypertension would intuitively make a case for resisting positivity.
Khan, Aamir Hameed, Almas, Aysha, Javed, Wajiha   +2 more
core  

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

Advanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du, Takahiro Kaneko, Xinyu Yan, Takahito Ohmura, Kyosuke Yoshimi   +4 more
wiley   +1 more source

Yield of Tilt Table Test in Diagnosing Syncope in Patients With Suspected Neurally Mediated Syncope. [PDF]

Cardiol Res
Al-Ghamdi BS, Fagir N, Alnahdi F, Alhamami A, Baali M, Alghamdi S, Alruwaili N, De Vol E.   +7 more
europepmc   +1 more source

Effect of Food Intake on Hemodynamic Parameters during the Tilt-Table Test in Patients with Postural Orthostatic Tachycardia Syndrome. [PDF]

J Clin Neurol, 2019
Habek M, Ruška B, Crnošija L, Adamec I, Junaković A, Krbot Skorić M.   +5 more
europepmc   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Spectral analysis of heart rate variability for assessment of autonomic nervous system activity during head-up tilt table testing

, 2014
Spectral analysis of heart rate variability was used to assess changes in activity of autonomic nervous system (ANS) in 84 patients with history of recurrent syncope and 21 normal controls.
Likar, Polona, et al.
core  

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

Advanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat, D. Anjaria, I. Woo, C. Bean, D. Texier, J. C. Stinville   +5 more
wiley   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source