Results 81 to 90 of about 169,803 (308)

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

Advanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi, Naseeh Backer Kannanthodi, Alice Nicole Casling, Babar Ali, Samira Lakouraj Mansouri, Alessandro Giuseppe D'aloia, Hossein Cheraghi Bidsorkhi, Maria Sabrina Sarto   +7 more
wiley   +1 more source

Modeling of dynamic characteristics for hydraulic drive under nonstationary load [PDF]

E3S Web of Conferences
The methodology for estimating the transient response and frequency characteristics for volumetric hydraulic drive under nonstationary load is proposed.
Sokolov Vladimir, Krol Oleg
doaj   +1 more source

Remote control of hydrostatic drive mechanisms for hoisting machinery and logistics centers [PDF]

, 2015
The analysis of the crane or loader travel mechanism construction with hydrostatic drive and low-moment hydraulic motor has been performed. It has been proposed that the electric circuit of pump performance remote control system that meets the ...
Grigorov, Otto, Stryzhak, Vsevolod, Ziubanova, Daria   +2 more
core  

Passive phloem loading and long-distance transport in a synthetic tree-on-a-chip [PDF]

, 2017
Vascular plants rely on differences of osmotic pressure to export sugars from regions of synthesis (mature leaves) to sugar sinks (roots, fruits). In this process, known as M\"unch pressure flow, the loading of sugars from photosynthetic cells to the ...
A Lang, A Schulz, AC Srivastava, AD Stroock, BR Bruhn, BT Good, C Zhang, E Münch, J Liesche, JP Wright, JP Wright, JR Lancashire, KH Jensen, KH Jensen, KH Jensen, KH Jensen, KH Jensen, KH Jensen, M Knoblauch, M Knoblauch, MV Thompson, N Gould, P Dechadilok, PJ Kramer, Q Fu, R Turgeon, R Turgeon, R Turgeon, RT Giaquinta, S Herrlich, T Velten, TD Wheeler, W Eschrich, WA Russin, X Noblin, Y Gamalei, Z-R Xu   +36 more
core   +2 more sources

Supramolecular Engineering of Fluid Pressure in Filamentous Hybrid Double Network Hydrogels for 3D Chondrocyte Culture

Advanced Healthcare Materials, EarlyView.
Inspired by the water‐rich and interconnected biopolymer networks of native load‐bearing tissues, we disclose a connectable design for a hybrid filamentous supramolecular and covalent double network hydrogel generated through in situ photopolymerization.
Ciqing Tong, Ying Chen, Merel L. Janssen, Isabel Sariol, Joeri A. J. Wondergem, Marijn van den Brink, Mertcan Özel, Rob G. H. H. Nelissen, Ingrid Meulenbelt, Doris Heinrich, Yolande F. M. Ramos, Roxanne E. Kieltyka   +11 more
wiley   +1 more source

Enhanced Endoscopic Internal Drainage of Gastric Abscess Through Additively Manufactured Stents

Advanced Healthcare Materials, EarlyView.
Postoperative gastric leaks are often treated with off‐label biliary double‐pigtail stents, yet conventional extruded designs are not optimized for leak anatomy, can migrate, and may limit abscess evacuation. PETALS is introduced to optimize transmural drainage geometry and enable patient‐specific 3D‐printable stents.
Parima Phowarasoontorn, Yongbin Ko, Juan S. Barajas‐Gamboa, Juan P. Pantoja, Oraib Al‐Ketan, Mohamed Ali, Sungyun Sohn, Heba Tageldeen Naser, Abdel‐Hameed Dabbour, Batoul Khlaifat, Ahmed AlZubaidi, Carlos Abril Vega, John Rodriguez, Matthew Kroh, Khalil B. Ramadi   +14 more
wiley   +1 more source

Design of Electro-Hydraulic Double Helix Drive Orienter for Coiled Tubing Drilling

Shiyou jixie, 2020
To address the problems of time-consuming, low accuracy of current coiled tubing drilling hydraulic orienter, and the complicated structure of electro-hydraulic drive orienter, an electro-hydraulic double helix drive orienter for coiled tubing drilling ...
Ma Weiguo, Wang Li, Wang Chengfei
doaj  

Friction in a hydraulic motor piston/cam roller contact lined with PTFE impregnated

, 2009
The aim of this work was to test a new PTFE impregnated cloth material for use as a surface layer on the pistons of a hydraulic motor at the interface with the cam roller.
Lewis, R.
core   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Elastomeric Micro‐Balloons for Remote Control of Cerebral Blood Flow and Real‐Time In vivo Imaging of Rodent Brain Response to Hypoperfusion

Advanced Materials, EarlyView.
This study reports the fabrication of MRI‐compatible elastomeric micro‐balloons via a multi‐step bubble casting process, where the monolithic elastomeric wall is selectively stiffened for reversible and controlled inflation and elasticity, depending on the target vessels for graded occlusion of cerebral arteries.
Jong Bin Kim, Jinghui Wang, Yinding Chi, Jingxian Wu, Alicia Ng, Guanda Qiao, Honglin Tan, Miroslaw Janowski, Piotr Walczak, Yajie Liang, Shu Yang   +10 more
wiley   +1 more source