Results 31 to 40 of about 1,034,710 (311)
Improved Dynamic Predictions from Joint Models of Longitudinal and Survival Data with Time-Varying Effects using P-splines [PDF]
, 2017 In the field of cardio-thoracic surgery, valve function is monitored over time after surgery. The motivation for our research comes from a study which includes patients who received a human tissue valve in the aortic position. These patients are followed
Andrinopoulou, Eleni-Rosalina +3 more
core +14 more sources
JACC: Case Reports, 2021 A 79-year-old woman was treated with a 23-mm balloon-expandable transcatheter heart valve (THV) that was initially complicated by an embolized THV requiring deployment in the descending aorta. She presented 13-years later with a degenerated bioprosthesis
Abdul Rahman Ihdayhid, MBBS, PhD +4 more
doaj +1 more source
Shipin gongye ke-ji, 2022 The preparation process of compound yogurt with added cistanche and jujube was optimized using single-factor experiments and response surface curve analysis by applying evaluation indicators including taste, texture, odor, and color.
Bolu SUN +6 more
doaj +1 more source
Valve-in-Valve Transcatheter Aortic Valve Implantation for Degenerated Bioprosthetic Heart Valves
JACC: Cardiovascular Interventions, 2011 We sought to analyze outcomes of patients with degenerated surgically implanted bioprosthetic heart valves undergoing valve-in-valve (viv) transcatheter aortic valve implantation (TAVI).Redo cardiac surgery for degenerated bioprosthetic heart valves is associated with increased risks, particular in elderly patients with comorbidities.
Eggebrecht, Holger +15 more
openaire +3 more sources
Designing redundant metering valves for hydraulic actuators under mixability and low cost-constraints [PDF]
, 2010 This article deals with the design of redundant metering valves for mechanically signalled hydraulic actuators. The final aim of the work is to manufacture a new low-cost valve in replacement of the existing expensive valve with an additional leakage ...
Malburet, François +3 more
core +1 more source
Failed Valve-In-Valve Transcatheter Aortic Valve Implantation
JACC: Cardiovascular Interventions, 2012 In 2004, a 68-year-old man received aortocoronary bypass surgery and a 23-mm Hancock porcine bioprosthesis (Medtronic, Minneapolis, Minnesota). Six years later, in January 2011, cardiac re-evaluation was performed due to progressive dyspnea.
Klotz, Stefan +3 more
openaire +2 more sources
Karl August Hermann - 150 Jahre (1851-1909) [PDF]
Linguistica Uralica, 2022 Valve-Liivi Kingisepp
doaj +1 more source
The influence of laser hardening on wear in the valve and valve seat contact [PDF]
, 2009 In internal combustion engines it is important to manage the wear in the valve and valve seat contact in order to minimise emissions and maximise economy.
H. Taylor +9 more
core +1 more source
A comparison of variable valve strategies at part load for throttled and un-throttled SI engine configurations [PDF]
, 2015 The presented work concerns the study of the fuel consumption and emissions benefits achieved at part load by employing a fully variable valve train in a 1.6L SI gasoline engine.
Barber, M, Cairns, A, Pesiridis, A
core +1 more source
Advances in Mechanical Engineering, 2017 Flow coefficient is an important performance index associated with the energy efficiency of a valve, and an effective method to evaluate valve flow coefficient is necessary for valve industry.
Xiao-Ming Zhou +2 more
doaj +1 more source