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Experimental Investigation of Wake-Induced Bypass Transition Control by Surface Roughness

Chinese Physics Letters, 2012
Surface roughness is experimentally used to control the flat-plate boundary layer bypass transition induced by an upstream convected two-dimensional (2D) circular cylinder wake. It is shown that the later stage of this bypass transition is successfully postponed, at the price of accelerating the earlier transition stage. A regularisation process of the
Chong Pan, Jin-Jun Wang, Guo-Sheng He
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Canal surfaces with rational contour curves and blends bypassing the obstacles

Computer-Aided Design, 2015
In this paper, we will present an algebraic condition, see (20), which guarantees that a canal surface, given by its rational medial axis transform (MAT), possesses rational generalized contours (i.e., contour curves with respect to a given viewpoint). The remaining computational problem of this approach is how to find the right viewpoint.
Michal Bizzarri   +2 more
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Coagulation Patterns in Bovine Left Heart Bypass with Phospholipid Versus Heparin Surface Coating

ASAIO Journal, 1993
The current study was designed to evaluate tubing sets with either polymeric phospholipids or ionically bound heparin in six bovine experiments (body weight, 70 +/- 5 kg). No heparin was given systemically. Left heart bypass was started with 300 ml of clear priming solution and maintained over 6 hours (50 ml/kg/min).
L K, von Segesser   +3 more
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Biocompatibility of trillium biopassive surface–coated oxygenator versus uncoated oxygenator during cardiopulmonary bypass

Journal of Cardiothoracic and Vascular Anesthesia, 2001
To determine if the Trillium Biopassive Surface (Medtronic Cardiopulmonary, Minneapolis, MN) coating added to the cardiopulmonary bypass oxygenator reduces inflammatory mediators, blood loss, and transfusion requirements.Prospective, randomized, and blinded human trial.Tertiary care academic medical center.Thirty adult patients undergoing elective ...
M H, Ereth   +9 more
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Emerging Technologies in Biocompatible Surface Modifying Additives: Quest for Physiologic Cardiopulmonary Bypass

Current Medicinal Chemistry-Cardiovascular & Hematological Agents, 2004
Modification of polymer surfaces to achieve a surface with enhanced compatibility is an important means of obtaining improved biomaterials. The molecular design of the novel technologies is carried out with attention to create a biomembrane-mimicking surface on medical devices. This review focuses on the comparison of the chemical composition of recent
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The Role of Pentoxifylline on Surface-Mediated Reactions During Cardiopulmonary Bypass

2015
AbstractActivation of different blood cells has been shown after the contact of blood with foreign surfaces of extracorporal circulation (ECC) devices during cardiopulmonary bypass (CPB) conditions ...
Gustav Fraedrich   +5 more
openaire   +1 more source

Prediction of Bypass Transition Flow on Surface with Changing Pressure Gradient

Transactions of the Korean Society of Mechanical Engineers B, 2002
A modified -model is proposed for calculation of transitional boundary-layer flows with changing pressure gradient. In order to develop the model for this problem, the flow is divided into three regions; pre-transition region, transition region and fully turbulent region.
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Blood-Surface Interactions During Cardiopulmonary Bypass

1991
L. Henry Edmunds   +2 more
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