Results 61 to 70 of about 43,354 (300)

Pulsatile Turbulent Flow in Straight and Curved Pipes - Interpretation and Decomposition of Hot-Wire Signals

, 2015
Pulsatile turbulent flows in curved pipes at high Womersley and Reynolds numbers are prevalent in various components of internal combustion engines, in particular in the intake of the exhaust manifold.
Örlü, Ramis,, Kalpakli Vester, Athanasia,, Alfredsson, P. Henrik,   +2 more
core   +1 more source

Velocity-driven Womersley Solution for Pulsatile Flow

, 2022
Version 0.1.1 of Velocity-driven Womersley Solution for Pulsatile Flow for estimating pulsatile wall shear stress (WSS) from an input velocity waveform.
jmuskat
core   +1 more source

Integrated Single‐Cell and Spatial Analysis Reveals a Metabolic‐Immune Axis Driving Aortic Dissection

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, Huanjie Yang, Jiahui Yong, Xueting Chen, Qiang Zhao, Xueli Wu, Lei Yan, Li Pang, Fan Luo, Mengjun Yu, Shanshan Pan, Deyang Li, Rouxi Chen, Juan Wang, Zhensheng Dong, Fan Yang, Yue Wang, Yang Chen, Hongjian Zheng, Zhimin Yang, Zijie Wang, Karsten Kristiansen, Hui Peng, Xiaodong Fang, Juan Shen, Yining Yang   +25 more
wiley   +1 more source

Comparison of clinical outcomes between pulsatile and non-pulsatile perfusion during cardiopulmonary bypass: A prospective randomized study

The Journal of ExtraCorporeal Technology
Background: The clinical benefits of pulsatile perfusion during cardiopulmonary bypass (CPB) remain a subject of debate. This study aimed to compare clinical outcomes between pulsatile and non-pulsatile perfusion during CPB in patients undergoing ...
Sharma Aakriti, Luitel Prajjwol, Khakural Prabhat, Sapkota Ranjan   +3 more
doaj   +1 more source

Generation of Self‐Organizing Macrovascular Constructs by Bioprinting Human iPSC‐Derived Mesodermal Progenitor Cells

Advanced Science, EarlyView.
ABSTRACT Vascularization remains a major obstacle in tissue engineering. Here, we introduce a bioprinting strategy to generate centimeter‐scale, self‐organizing “mother vessel” constructs from iPSC‐derived hiMPCs. By optimizing bioink composition, printing was accomplished in a single‐step approach. Within one week, hiMPCs differentiated into both CD31+
Leyla E. Dogan, Nathaly A. Chicaiza‐Cabezas, Florian Kleefeldt, Philipp Wörsdörfer, Jürgen Groll, Süleyman Ergün   +5 more
wiley   +1 more source

Pulsatile flow analysis in a bend square channel by modal decomposition

EPJ Web of Conferences, 2014
The article analyzes the results of numerical simulations of pulsatile flow in a square channel with a 90° bend using Proper Orthogonal Decomposition (POD).
Manoch Lukáš, Matěcha Jan, Netřebská Hana, Adamec Josef   +3 more
doaj   +1 more source

Combinations of Hydrostatic Pressure and Shear Stress Time-dependently Decrease E-selectin, VCAM-1 and ICAM-1 Expression Induced by Tumor Necrosis Factor-Alpha in Cultured Endothelial Cells

Journal of Biomechanical Science and Engineering, 2012
Endothelial cells (ECs) are constantly subjected to shear stress, a tangential stress generated by blood flow, and hydrostatic pressure, a normal stress generated by blood pressure.
Hiromichi NAKADATE, Eiichi SEKIZUKA, Shigeru AOMURA, Haruyuki MINAMITANI   +3 more
doaj   +1 more source

Adaptive control of microrobot in pulsatile flow [PDF]

2014 IEEE Conference on Control Applications (CCA), 2014
We propose an observer-based adaptive controller for a magnetic microrobot navigating in blood vessels. The pulsatile blood flow nonlinearly affects the drag force which dominates the microrobot dynamics. Instead of using a priori knowledge of the blood flow, we synthesize a mean value theorem (MVT) based observer to on-line estimate the pulsatile ...
Sadelli, Lounis, Fruchard, Matthieu, Ferreira, Antoine   +2 more
openaire   +2 more sources

Photothermal Amplification via Nanorobotic Swarming Dynamics

Advanced Science, EarlyView.
This study explores a novel approach to enhance photothermal therapy using magnetically regulated microswarms. It details the development of magnetic nanoparticles organized into dynamic structures that improve heat retention and conversion efficiency.
Qinglong Wang, Lin Su, Zhengxin Yang, Yihang Jiang, Haojin Yang, Qianqian Wang, Li Zhang, Ben Wang, Jiajia Wang   +8 more
wiley   +1 more source

Parametric Analysis of Effective Tissue Thermal Conductivity, Thermal Wave Characteristic, and Pulsatile Blood Flow on Temperature Distribution during Thermal Therapy

, 2017
This study examines the coupled effects of pulsatile blood flow in a thermally significant blood vessel, the effective thermal conductivity of tumor tissue, and the thermal relaxation time in solid tissues on the temperature distributions during thermal ...
Shih, Tzu-Ching;Huang, Huang-Wen;Wei, Wei-Che;Horng, Tzyy-Leng
core   +1 more source