Results 91 to 100 of about 195,389 (268)
Frontiers in Cardiovascular MedicineBackgroundThere are different types of transcatheter mitral valve repair (TMVr) currently in clinical use, including leaflet approximation, annular cinching, and restoration of the chordal apparatus of the mitral valve (MV).
Hiroaki Yokoyama +8 more
doaj +1 more source
Hybrid valve-in-valve mitral valve replacement [PDF]
JTCVS Techniques, 2020 Harloff, Morgan T. +3 more
openaire +2 more sources
Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing
Advanced Materials, EarlyView.Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria +6 more
wiley +1 more source
Large thrombus on a prosthetic aortic valve diagnosed on the 1st postpartum day
International Journal of the Cardiovascular Academy, 2019 40 years old female with prosthesis aortic valve had developed shortness of breath and consulted to our clinic on the first postpartum day. Her dyspnea was worsened at the last week.
Sinan Varol +4 more
doaj +1 more source
Advanced Materials, EarlyView.A green, freeform manufacturing approach that utilizes robust aqueous two‐phase systems to create intricate and scalable photonic structures and non‐planar mechanochromic hydrogel actuators from plant‐based hydroxypropyl cellulose. This approach broadens the structural possibilities of sustainable photonic devices and mechanochromic systems, offering ...
Xiao Song +14 more
wiley +1 more source
A Safety Valve for Emissions Trading [PDF]
This paper considers the optimal design of an emissions trading program that includes a safety valve tax that allows pollution sources to escape the emissions cap imposed by the aggregate supply of emissions permits.
John Stranlund
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Diesel Engine Valve Clearance Detection Using Acoustic Emission
, 2010 This paper investigated, using experimental method, the suitability of acoustic emission (AE) technique for the condition monitoring of diesel engine valve faults.
Gu, Fengshou +7 more
core +1 more source
Positively Charged Polymer‐Brush MOFs for Large‐Area, Pressure‐Resistant Gas Separation Membranes
Advanced Materials, EarlyView.A universal POPA strategy enables positively charged polymer‐brush MOFs with self‐adaptive interfacial interlocking to resist aggregation under fast processing. This design ensures seamless dispersion within large‐area selective layers, achieving 1 m‐wide roll‐to‐roll fabrication of pressure‐resistant MMCMs with tunable CO2 separation performance ...
Yi Yang +11 more
wiley +1 more source
A Digital Hydraulic Valve, Actuated Using a Piezoelectric Linear Motor
, 2011 Proportional control in hydraulics is widely utilized. The most widely used current types of proportional valves utilize solenoid technology. While this technology has been around for decades and has been proven an effective means of control, there is ...
Bevill, Brian C
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Tetralogy of Fallot with absent pulmonary valve syndrome : an imaging challenge [PDF]
, 2015 Congenital absence of pulmonary valve syndrome (APV) represents a fascinating and unique variant of congenital heart disease. It was Chever in 1847 who first described this unique structural heart defect.
Gogou, Maria +2 more
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