Results 31 to 40 of about 301,544 (297)

Hydrodynamic self-cleaning of plate heat exchangers with spherical dimples

Известия высших учебных заведений: Проблемы энергетики, 2017
Method of continuous hydrodynamic cleaning of plate heat exchangers with spherical dimples by a working medium blown through bypass ducts from high-pressure zones to low-pressure zones of adjacent dimples has been developed and experimentally validated ...
V. V. Takmovtsev, A. V. Ilyinkov, A. V. Shchukin, I. SH. Zaripov   +3 more
doaj   +1 more source

An optical coherence tomography and endothelial shear stress study of a novel bioresorbable bypass graft

Scientific Reports, 2023
Endothelial shear stress (ESS) plays a key role in the clinical outcomes in native and stented segments; however, their implications in bypass grafts and especially in a synthetic biorestorative coronary artery bypass graft are yet unclear.
Eric K. W. Poon, Masafumi Ono, Xinlei Wu, Jouke Dijkstra, Yu Sato, Matthew Kutyna, Ryo Torii, Johan H. C. Reiber, Christos V. Bourantas, Peter Barlis, Mohammed S. El-Kurdi, Martijn Cox, Renu Virmani, Yoshinobu Onuma, Patrick W. Serruys   +14 more
doaj   +1 more source

Microvascular dysfunction following cardiopulmonary bypass plays a central role in postoperative organ dysfunction

Frontiers in Medicine, 2023
Despite significant advances in surgical technique and strategies for tissue/organ protection, cardiac surgery involving cardiopulmonary bypass is a profound stressor on the human body and is associated with numerous intraoperative and postoperative ...
Shawn Kant, Debolina Banerjee, Sharif A. Sabe, Frank Sellke, Jun Feng   +4 more
doaj   +1 more source

RHEOLOGICAL PARAMETERS OF SERUM AND PLASMA OF BLOOD IN PATIENTS OPERATED ON HEART IN THE CONDITIONS OF ARTIFICIAL BLOOD CIRCULATION DURING THE PER- AND INTRAOPERATIVE PERIOD

Известия высших учебных заведений. Поволжский регион: Медицинские науки, 2020
Background. Set the values of surface tension and dilatational viscoelasticity: 1) serum and plasma in patients operated on for the heart under cardiopulmonary bypass, in the peri-and intraoperative periods; 2) blood serum during cardiopulmonary ...
I. Ya. Moiseeva, V. V. Potapov, O. K. Zenin, I. V. Kuznetsova, L. S. Dmitriev   +4 more
doaj   +1 more source

Prospective Interventional Cohort Study of Ocular Surface Disease Changes in Eyes After Trabecular Micro-Bypass Stent(s) Implantation (iStent or iStent inject) with Phacoemulsification

Ophthalmology and Therapy, 2020
Introduction This study sought to assess ocular surface disease changes following cataract surgery combined with trabecular micro-bypass stent(s) implantation (iStent or iStent inject).
Justin A. Schweitzer, Whitney H. Hauser, Mitch Ibach, Brandon Baartman, Subba R. Gollamudi, Andrew W. Crothers, John E. Linn, John P. Berdahl   +7 more
doaj   +1 more source

Clinical effect of a modified superficial temporal artery-middle cerebral artery bypass surgery in Moyamoya disease treatment

Frontiers in Neurology, 2023
BackgroundCerebral extracranial-intracranial (EC-IC) revascularization technique (superficial temporal artery-middle cerebral artery (STA-MCA) bypass grafting) has become the preferred surgical method for the treatment of Moyamoya disease (MMD).
Liang Lu, Yimin Huang, Yang Han, Yu Li, Xueyan Wan, Juan Chen, Xincheng Zhang, Kai Shu, Ting Lei, Sheng Wang, Chao Gan, Huaqiu Zhang   +11 more
doaj   +1 more source

Second-order Shape Optimization for Geometric Inverse Problems in Vision [PDF]

, 2014
We develop a method for optimization in shape spaces, i.e., sets of surfaces modulo re-parametrization. Unlike previously proposed gradient flows, we achieve superlinear convergence rates through a subtle approximation of the shape Hessian, which is ...
Balzer, J., Soatto, S.
core   +1 more source

SchussenAktivplus: reduction of micropollutants and of potentially pathogenic bacteria for further water quality improvement of the river Schussen, a tributary of Lake Constance, Germany [PDF]

, 2013
The project focuses on the efficiency of combined technologies to reduce the release of micropollutants and bacteria into surface waters via sewage treatment plants of different size and via stormwater overflow basins of different types. As a model river
Amler, Klaus, Blaha, Ludek, Gallert, Claudia, Giebner, Sabrina, Güde, Hans, Henneberg, Anja, Hess, Stefanie, Hetzenauer, Harald, Jedele, Klaus, Jung, Ralph-Michael, Kneipp, Sven, Krais, Stefanie, Kuch, Bertram, Köhler, Heinz-R., Lange, Claudia, Löffler, Herbert, Maier, Diana, Metzger, Jörg, Müller, Michael, Oehlmann, Jörg, Osterauer, Raphaela, Peschke, Katharina, Raizner, Jürgen, Rault, Magali, Rey, Peter, Richter, Doreen, Sacher, Frank, Scheurer, Marco, Schneider-Rapp, Jutta, Seifan, Merav, Spieth, Markus, Triebskorn, Rita, Vogel, Hans-Joachim, Weyhmüller, Michael, Winter, Josef, Wurm, Karl   +35 more
core   +1 more source

Impact of competitive flow on wall shear stress in coronary surgery: computational fluid dynamics of a LIMA-LAD model [PDF]

, 2010
Competitive flow from native coronary vessels is considered a major factor in the failure of coronary bypass grafts. However, the pathophysiological effects are not fully understood.
Haverstaad, Rune, Kirkeby-Garstad, Idar, Lovstakken, Lasse, Nordgaard, Havard, Nordhaug, Dag, Segers, Patrick, Swillens, Abigaïl, Van Loo, Denis, Vitale, Nicola   +8 more
core   +2 more sources

Performance Simulation of Surface Air Cooler with Bypass Valve

Procedia Engineering, 2017
Abstract In this paper, mathematical models of heat exchanger and valve are established according to energy conservation equation and mass conservation equation. MATLAB/Simulink is used as a platform based on the mathematical models to establish simulation model of surface air cooler with bypass valve system including heat exchanger, nonlinear air ...
Zhiqiang Kang, Jiannan Dong, Yubo Zhang, Xiaoxi Zhou, Guohui Feng   +4 more
openaire   +1 more source