Results 81 to 90 of about 14,460,464 (264)

Smart Catheters for Diagnosis, Monitoring, and Therapy

Advanced Healthcare Materials, Volume 15, Issue 13, 3 April 2026.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman, Samiha Ahmed, Majed Othman Althumayri, Megan Guy, Darlenne Chavez Lugo, Frances S. Ligler, George T. Ligler, Rahmi Oklu, Hiroshi Kawahira, Michael J. McShane, Jun Kameoka, Jonathan Bova, Hatice Ceylan Koydemir   +12 more
wiley   +1 more source

External Periodic Force Control of a Single-Degree-of-Freedom Vibroimpact System

Journal of Control Science and Engineering, 2013
A single-degree-of-freedom mechanical model of vibro-impact system is established. Bifurcation and chaos in the system are revealed with the time history diagram, phase trajectory map, and Poincaré map.
Jingyue Wang, Haotian Wang, Tie Wang
doaj   +1 more source

Nonlinear Asymmetric Blood Oxygenation Level Dependent Responses in Somatosensory Cortex

Human Brain Mapping, Volume 47, Issue 5, 1 April 2026.
BOLD responses to increments and decrements in intensity of vibrotactile stimulation were asymmetric. Negative BOLD effects (decrements in signal) were smaller in amplitude and slower to peak compared with positive BOLD responses to increases of intensity. BOLD responses were nonlinear for changes in stimulus duration and intensity.
Feng Wang, Pai‐Feng Yang, Arabinda Mishra, Li Min Chen, John C. Gore   +4 more
wiley   +1 more source

Modelling of a vibro-impact power take-off mechanism for wave energy conversion [PDF]

, 2020
Ocean wave spectra are broad-banded, while wave energy conversion systems are designed to harvest energy efficiently within a narrow frequency range, resulting in low overall power capture efficiency.
John Ringwood, Ringwood, John, Bingyong Guo, John V. Ringwood, Guo, Bingyong   +4 more
core   +1 more source

Integrating Biological Architecture and Biomaterial Function: Exploring the Native Hydrogel Structure of Brown Seaweed

Macromolecular Bioscience, Volume 26, Issue 4, April 2026.
This study explores the natural internal structure of brown seaweed and how it influences material behavior. By preserving and reassembling the seaweed's native architecture, hydrogels and foams with high liquid absorption, porosity, and shape recovery were created using minimal processing.
Linn Berglund, Richa Sharma
wiley   +1 more source

Palaeolandscape reconstruction of a shallow coastal embayment in Kattegat, Denmark—influence of sea‐level changes during the latest Pleistocene and Holocene

Boreas, Volume 55, Issue 2, Page 560-584, April 2026.
We analyse the geological processes of a coastal embayment in the Kattegat. Using high‐resolution seismic data and sediment cores, we describe a geological evolution from glacial to shallow marine stages with a variety of preserved facies from different depositional settings, including glacio‐lacustrine, telmatic, limnic and coastal environments.
Katrine Juul Andresen, Lars Ole Boldreel, Ole Bennike, Christof Pearce, Mikkel Fruergaard, Verner Brandbyge Ernstsen, Aart Kroon, Nicole Rita Posth, Marit‐Solveig Seidenkrantz   +8 more
wiley   +1 more source

Analysis of Vibro-Impact System with Ideal Excitation and Various Friction Models

Science, Engineering and Technology
In this paper, the dynamic analysis of a vibro-impact system with ideal excitation and various friction models is performed. A physical model of an oscillating mechanical system with possible impact occurrence is presented and the corresponding ...
Kanita Lemeš, Džanko Hajradinović, Zlata Jelačić   +2 more
doaj   +1 more source

Wire Arc Directed Energy Deposition of Aluminum–B4C Composites

International Journal of Applied Ceramic Technology, Volume 23, Issue 2, April 2026.
ABSTRACT The scalable fabrication of structural‐grade aluminum metal matrix composites (A‐MMCs) remains constrained by inherent limitations of conventional processing routes and laser‐based additive manufacturing (AM) methods. In this work, we demonstrate the development of a hybrid wire arc directed energy deposition (WA‐DED) platform for the near‐net‐
Aruntapan Dash, Mathieu Schweitzer, Amit Bandyopadhyay   +2 more
wiley   +1 more source

Synthèse vibro-acoustique d'une pompe à chaleur [PDF]

, 2015
Les exigences de performance acoustique des machines frigorifiques deviennent un critère de choix déterminant, et ceci principalement pour des raisons de confort.
Legros, Maxime, Gardin, Thomas
core  

Dynamic Response and Energy Conversion of Coupled Cantilevers with Dual Piezoelectric–Triboelectric Harvesting Mechanisms

Micromachines
This study presents a Hybrid Piezoelectric–Triboelectric Energy Harvester (HPTEH) composed of two coupled cantilever beams, designed to enhance energy generation and broaden bandwidth by combining piezoelectric and triboelectric mechanisms. A theoretical
Mohammad Alghamaz, Leila Donyaparastlivari, Alwathiqbellah Ibrahim   +2 more
doaj   +1 more source