Results 81 to 90 of about 212,475 (312)

Nonavailability of ultrasound: Try stethoscope in pneumatic reduction

Journal of Indian Association of Pediatric Surgeons, 2020
Aim and Objective: This study aimed to finding alternative ways for centers with nonavailability of ultrasonography or fluoroscopy for nonoperative pneumatic reduction of intussusceptions.
Ramesh Tanger, Aditya Pratap Singh, Arun Kumar Gupta, Dinesh Kumar Barolia, Arvind Kumar Shukla   +4 more
doaj   +1 more source

Respiratory Organ‐on‐a‐Chip for Disease Modeling: From Architecture to Functional Integration

Advanced Healthcare Materials, EarlyView.
Respiratory organ‐on‐a‐chip (ROC) models capture key mechanical and cellular cues of the human respiratory system, enabling quantitative dissection of disease mechanisms. This review links ROC architectures to disease modeling, functional integration, and commercialization, and proposes a decision framework that aligns model complexity with mechanistic
Jinzhuo Hu, Yongjie Tang, Sidi Liu, Tao Xu, Qian Liu   +4 more
wiley   +1 more source

Design and Testing of a Pneumatic Jujube Harvester

Agronomy
Jujubes have a beautiful taste, and high nutritional and economic value. The planting area of dwarf and densely planted jujubes is large and shows an increasing trend; however, the mechanization level and efficiency of fresh jujube harvesting are low ...
Huaming Hou, Wei Niu, Qixian Wen, Hairui Yang, Jianming Zhang, Rui Zhang, Bing Xv, Qingliang Cui   +7 more
doaj   +1 more source

A Data Driven Review of In Vitro Electrical and Mechanical Stimulation for Post‐Acute Phase Wound Healing

Advanced Healthcare Materials, EarlyView.
This review examines how in vitro electrical and mechanical stimulation modulates wound healing in fibroblasts and keratinocytes. Analyzing over 560 experimental data points, we relate stimulation parameters to proliferation and migration outcomes, evaluate platform designs, and highlight the need for multi‐parameter optimization to advance targeted ...
Matthew K. Burgess, Ellen F. Marsh, Veronica M. Lucian, Malavika Nair   +3 more
wiley   +1 more source

Toward More Autonomous Soft Robots: Development and Characterization of a 3D‐Printed Pneumatic Contact Sensor for a Six‐Legged Soft Robotic Walker

Advanced Intelligent Systems
Sensory feedback systems allow soft robots to interact and respond to their environment through embedded or external sensors. These sensors often rely on electronic components for signal interpretation and processing, which increases system complexity ...
Philipp Auth, Stefan Conrad, Noah Knorr, Joscha Teichmann, Sebastian Ruppert, Thomas Speck, Falk Tauber   +6 more
doaj   +1 more source

Reciprocating engines [PDF]

, 1981
An intake valve arrangement for positively controlling the opening and closing of the poppet valve in a hot gas cylinder in a hydrazine powered engine is described. The poppet valve is operated by the piston and gas pressure only. The poppet valve uses a
Akkerman, J. W.
core   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

Advanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia, Rogelio Ortigosa, Jesús Martínez‐Frutos, Daniel Garcia‐Gonzalez   +3 more
wiley   +1 more source

Investigation of a Vacuum Ejector Used in a Dynamic Function Vehicle Tire Air Control Valve [PDF]

Journal of Applied Fluid Mechanics
A critical component of a central tyre inflation system (CTIS) is the tyre valve. When positive pressure air is directed to the valve, it allows air to enter the tyre, increasing the tyre’s internal pressure.
Y. S. Korkmaz, A. Kibar, K. Suleyman Yigit, E. Erturk, Z. Doğruyol   +4 more
doaj   +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

Compensating for pneumatic distortion in pressure sensing devices [PDF]

A technique of compensating for pneumatic distortion in pressure sensing devices was developed and verified. This compensation allows conventional pressure sensing technology to obtain improved unsteady pressure measurements.
Leondes, Cornelius T., Whitmore, Stephen A.   +1 more
core   +1 more source