Results 81 to 90 of about 5,179,678 (338)
Intramachine and intermachine variability in transesophageal color doppler images of pulsatile jets: in vitro studies [PDF]
, 1994 Background: Color Doppler flow mapping is widely used as a marker of severity of valvular regurgitation, and the transesophageal approach has provided high-quality images in patients with poor acoustic windows.
Anayiotos, Andreas +2 more
core +2 more sources
Advanced Science, EarlyView.Single‐cell and spatial profiling of 110 human thoracic aortic samples reveals a stromal–immune circuit driving aortic dissection. An elastin‐rich fibroblast subset is depleted with age and markedly reduced in disease, weakening aortic wall integrity.
Jing Tao +25 more
wiley +1 more source
The influence of flow parameters on the transition to turbulence in pulsatile flow
EPJ Web of Conferences, 2014 The paper is focused on the experimental investigation of the flow parameters influence (stationary component of flow, frequency, amplitude) on the transition to turbulence in pulsatile flow in a straight square channel.
Schmirler M. +4 more
doaj +1 more source
Evolution of the wall shear stresses during the progressive enlargement of symmetric abdominal aortic aneurysms. [PDF]
, 2006 The changes in the evolution of the spatial and temporal distribution of the wall shear stresses (WSS) and gradients of wall shear stresses (GWSS) at different stages of the enlargement of an abdominal aortic aneurysm (AAA) are important in understanding
Chomaz, JM +3 more
core +4 more sources
Developing Micro/Nanostructured Fluidic Mixing Technology for Biomedical Applications
Advanced Science, EarlyView.This review critically evaluates how micro/nanostructured mixing technologies are redefining biomedical research. By synergizing fundamental analysis, numerical modeling, structural design, and external field manipulation, these systems attain unprecedented control over mass transport.
Junkai Wang +3 more
wiley +1 more source
Measuring the Interaction Between the Macro- and Micro-Vasculature
Frontiers in Cardiovascular Medicine, 2019 Structural and functional dysfunction in both the macro- and microvasculature are a feature of essential hypertension. In a healthy cardiovascular system, the elastic properties of the large arteries ensure that pulsations in pressure and flow generated ...
Rachel E. Climie +12 more
doaj +1 more source
Investigating inter-turn fault in transformer using TTR and FRA [PDF]
, 2019 Transformers are one of the significant elements in the power system network. The Transformer function is to step up and down the voltages. When the transformer operating in high load, it exposes to failures.
Abdulrazzaq Al-Iedani, Ali Salman
core
Advanced Intelligent Systems, EarlyView.This work presents a robot‐assisted Doppler optical coherence tomography system for autonomous, wide‐field intraoperative assessment of microvascular anastomoses. Machine‐vision–guided probe positioning and adaptive scan planning enable three‐dimensional structural and hemodynamic imaging over extended vessel segments.
Xiaochen Li +10 more
wiley +1 more source
Waves in arteries: A review of wave intensity analysis in the systemic and coronary circulations
Artery Research, 2008 The intermittent ejection of blood by the ventricle results in pulsatile pressure and flow waveforms in the circulation. Understanding and characterizing this pulsatile behaviour is attracting increasing clinical interest, as it may have important ...
Alun D. Hughes +2 more
doaj +1 more source