Results 101 to 110 of about 111,570 (396)

Shape‐Reconfigurable Crack‐Based Strain Sensor with Ultrahigh and Tunable Sensitivity

Advanced Functional Materials, EarlyView.
A highly sensitive crack‐based sensor with tunable strain detection capabilities is demonstrated through controlled nanocrack formation in a line‐patterned shape memory polymer substrate. The sensor design integrates thermoplastic polyurethane and poly(lactic acid), enabling thermo‐responsive reconfiguration of crack geometry.
Seungjae Lee, Youngoh Lee, Cheolhong Park, Yun Goo Ro, Min Sub Kwak, Geonyoung Jeong, Junseo Park, Hyejin Lee, Pan Kyeom Kim, Sung‐Il Chung, Hyunhyub Ko   +10 more
wiley   +1 more source

Fluid-structure interaction simulation of prosthetic aortic valves : comparison between immersed boundary and arbitrary Lagrangian-Eulerian techniques for the mesh representation [PDF]

, 2016
In recent years the role of FSI (fluid-structure interaction) simulations in the analysis of the fluid-mechanics of heart valves is becoming more and more important, being able to capture the interaction between the blood and both the surrounding ...
AJ Gravel, Alessandra M. Bavo, AM Bavo, BE Griffith, BF Stewart, CS Peskin, CT Otto, F Bakhtiary, F Sturla, Francesco Iannaccone, G Marom, GA Holzapfel, Giorgia Rocatello, H Kim, H Mohammadi, H Reul, I Borazjani, Iman Borazjani, J De Hart, J De Hart, J Degroote, JA Stella, Jan Vierendeels, Joris Degroote, KD Lau, KS Kunzelman, L Ge, L Taelman, M Astorino, ND Dos Santos, P Kleine, P Segers, Patrick Segers, PN Jermihov, R Gnyaneshwar, R Lohner, R Van Loon, RG Leyh, S Annerel, S Chandra, S Nobari, W Wu   +41 more
core   +4 more sources

A local optimal diastolic inequality on the two-sphere [PDF]

Journal of Topology and Analysis, Vol. 2 (2010), No 1, 109-121, 2008
Using a ramified cover of the two-sphere by the torus, we prove a local optimal inequality between the diastole and the area on the two-sphere near a singular metric. This singular metric, made of two equilateral triangles glued along their boundary, has been conjectured by E.
arxiv  

Phase shifts of synchronized oscillators and the systolic/diastolic blood pressure relation [PDF]

, 2004
We study the phase-synchronization properties of systolic and diastolic arterial pressure in healthy subjects. We find that delays in the oscillatory components of the time series depend on the frequency bands that are considered, in particular we find a change of sign in the phase shift going from the Very Low Frequency band to the High Frequency band.
arxiv   +1 more source

Echocardiography video synthesis from end diastolic semantic map via diffusion model [PDF]

arXiv, 2023
Denoising Diffusion Probabilistic Models (DDPMs) have demonstrated significant achievements in various image and video generation tasks, including the domain of medical imaging. However, generating echocardiography videos based on semantic anatomical information remains an unexplored area of research.
arxiv  

Narrowband Detection via Charge Collection Narrowing Organic Photodetector Enabled by Low Bandgap Random Terpolymer for Biometric Sensing

Advanced Functional Materials, EarlyView.
A novel low‐bandgap random terpolymer is designed for narrow band detection in charge collection narrowing (CCN) based organic photodetectors. With a relative thin active layer (<1 µm), the CCN‐based devices achieved a narrowband response of 68 nm full‐width‐at‐half‐maximum at 916 nm, together with Responsivity values of 0.13 A W−1 and dark current of ...
Matilde Brunetta, Zhuoran Qiao, Adibah Zamhuri, Francesco Furlan, Martina Rimmele, Peter A. Gilhooly‐Finn, Lewis M. Cowen, Filip Aniés, Patipan Sukpoonprom, Stanley Cazaly, Julianna Panidi, Flurin Eisner, Martin Heeney, Bob C. Schroeder, Nicola Gasparini   +14 more
wiley   +1 more source

The Diastolic Oscillation Amplitude Used as an Arterial Aging Indicator

Vascular Health and Risk Management, 2023
Fernando M Clara,1,2 José Alfie,3 Adriana Scandurra,1 Mariana Fita2 1Instituto de Investigaciones Científicas y Tecnológicas en Electrónica, Universidad Nacional de Mar del Plata/ CONICET, Mar del Plata, Argentina; 2Unidad Cardiometabólica, Centro de ...
Clara FM, Alfie J, Scandurra A, Fita M
doaj  

Light‐Mediated Photomultiplication via Cascade Energy Transfer in Organic Photodiode

Advanced Functional Materials, EarlyView.
Light‐mediated photomultiplication via cascade energy transfer in organic photodiode demonstrates external quantum efficiency exceeding 200% and specific detectivity surpassing 5.0 × 1013 Jones. This advancement effectively addresses the limitation of elevated dark current density characteristic of prior photomultiplication organic photodetectors ...
Gae Hwang Lee, Jae‐Hyun Kim, Hyunbum Kang, Jaebin Jeong, Jong Won Chung, Dongwook Kim, Jaehoon Park, Youngjun Yun, Sungjun Park   +8 more
wiley   +1 more source

Reliability in Using Routine Coronary CT Angiography with Retrospective Electrocardiographic Gating for the Comprehensive Functional Evaluation of the Left Ventricle

대한영상의학회지, 2019
Purpose To evaluate the feasibility of comprehensive left ventricle (LV) functional parameters on routine coronary computed tomographic angiography (CCTA) based on two-dimensional echocardiography (2DE).
Eun-Ju Kang, Jihoon Hong, Jongmin Park, Jongmin Lee   +3 more
doaj   +1 more source

Insuficiência cardíaca com fração de ejeção normal: novos critérios diagnósticos e avanços fisiopatológicos Insuficiencia cardiaca con fracción de eyección normal: nuevos criterios diagnósticos y avances fisiopatológicos Heart failure with normal ejection fraction: new diagnostic criteria and pathophysiological advances

Arquivos Brasileiros de Cardiologia, 2009
A insuficiência cardíaca (IC) é uma complexa síndrome cardiovascular com elevada prevalência, sendo que seu quadro clínico frequentemente é associado à dilatação do ventrículo, à diminuição da contratilidade e à reduzida fração de ejeção do ventrículo ...
Evandro Tinoco Mesquita, Antonio José Lagoeiro Jorge   +1 more
doaj   +1 more source