Results 101 to 110 of about 797,061 (291)

Atria: A comprehensive evaluation with echocardiography

Heart Vessels and Transplantation, 2017
Left and right atria have gained interest from scientific community. Two or three- dimensional echocardiographic methods have been implemented for better understanding of atrial functions in both healthy persons and patients with various diseases. Atrial
Oben Baysan, Ezgi Polat Ocaklı, Tugba Kayhan Altuner, Sinan Altan Kocaman   +3 more
doaj   +1 more source

Toward Perception‐Native Electronic Skin: Bio‐Inspired In‐/Near‐Sensor and Neuromorphic Computing for Humanoid Robots

Advanced Materials Technologies, EarlyView.
Dense tactile streams from across the humanoid body converge on collide in a central wiring and data bottleneck. By relocating computation closer to and then into the skin itself, near‐ and in‐sensor architectures, together with neuromorphic computing, chart a path toward perception‐native electronic skin, in which the conversion of stimulus into ...
Mijin Kim, Chang‐Jae Beak, Jiyoung Park, Youngdo Jung, Sunjong Oh, Sin‐Hyung Lee, Bo‐Yeon Lee   +6 more
wiley   +1 more source

Speckle tracking echocardiography in chronic obstructive pulmonary disease and overlapping obstructive sleep apnea

, 2016
Carmen Pizarro,* Fabian van Essen,* Fabian Linnhoff, Robert Schueler, Christoph Hammerstingl, Georg Nickenig, Dirk Skowasch, Marcel Weber Department of Internal Medicine II, Cardiology, Pneumology and Angiology, University Hospital Bonn, Bonn, Germany *
Skowasch D, Weber M, Hammerstingl C, Schueler R, Nickenig G, Pizarro C, Linnhoff F, van Essen F   +7 more
core  

Superoscillation in speckle patterns [PDF]

, 2008
Waves are superoscillatory where their local phase gradient exceeds the maximum wavenumber in their Fourier spectrum. We consider the superoscillatory area fraction of random optical speckle patterns.
Hamilton, AC, Dennis, MR, Courtial, J., Alasdair C Hamilton, Dennis, M.R., Mark R Dennis, Johannes Courtial, Dennis, Mark R.; id_orcid, Courtial, J, Hamilton, A., Courtial, Johannes, Hamilton, Alasdair C.   +11 more
core   +1 more source

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

Advanced Materials Technologies, EarlyView.
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco, Francesca Vittorioso, Dimitrios C. Zografopoulos, Romeo Beccherelli, Walter Fuscaldo   +4 more
wiley   +1 more source

Non‐Invasively Tracking an Arbitrary Deformable Object Through Scattering Media and Around Corners via Speckle Correlations

Advanced Science
Tracking a hidden object is of great significance across various fields. Although several methods have attempted to track an object behind scattering media, they either only work by assuming the object's shape is invariant, or require prior information ...
Aiping Zhai, Wenjing Ji, Yan Wang, Xiyuan Luo, Wenjing Zhao, Dong Wang, Fei Liu   +6 more
doaj   +1 more source

Role of speckle tracking echocardiography in detecting early left atrial dysfunction in hypertensive patients

The Egyptian Heart Journal, 2018
Background: Arterial hypertension adversely affects left atrial (LA) size and function, effect on function may precede effect on size. Many techniques were used to assess LA function but with pitfalls.
Bassam Hennawy, Wael El Kilany, Haitham Galal, Ahmed Mamdouh   +3 more
doaj   +1 more source

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

Advanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino, Phuoc Thien Phan, James Davies, Bibhu Sharma, Tianruo Guo, Chi Cong Nguyen, Nigel H. Lovell, Thanh Nho Do   +7 more
wiley   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

Advanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu, Bin Cui, Xumin Huang, Xiaoyu (Rayne) Zheng, T. Thang Vo‐Doan, Ruirui Qiao   +5 more
wiley   +1 more source

SUBCLINICAL SYSTOLIC DYSFUNCTION OF THE LEFT VENTRICLE IN PREECLAMPTIC WOMEN WITHOUT PROTEINURIA. THE POSSIBILITIES OF ECHOCARDIOGRAPHY IN EARLY DIAGNOSIS

Медицинский совет, 2017
The article presents the main pathophysiological mechanisms associated with the development of complications of pregnancy against the background of arterial hypertension in patients without clinical manifestations of left ventricular dysfunction, the ...
D. A. Doroshenko, A. R. Zubarev, O. B. Lapochkina   +2 more
doaj   +1 more source