Results 71 to 80 of about 1,427,145 (313)

Experimental Research on Fluid Coupling Flexible Actuator

open access: yesMicromachines, 2018
In the field of micromechanics, piezoelectric actuator has attracted great attention for its high-frequency response, high displacement resolution, and high output force.
Xiangli Zeng   +5 more
doaj   +1 more source

Silicon strain sensors enable pressure measurement at cryogenic temperatures [PDF]

open access: yes, 1968
Miniature pressure transducers with diffused, heavily doped silicon strain-gage sensor elements, operates over a wide temperature range. Small thermal mass combined with close coupling between a metallic diaphragm and sensor elements minimizes ...
Bowman, R., Burns, J., Mc Lellan, W.
core   +1 more source

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

open access: yesAdvanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza   +3 more
wiley   +1 more source

DESIGN AND OPTIMIZATION OF VALVELESS MICROPUMPS BY USING GENETIC ALGORITHMS APPROACH [PDF]

open access: yesJournal of Engineering Science and Technology, 2015
This paper presents a design optimization of valveless micropump using Genetic Algorithms (GA). The micropump is designed with a diaphragm, pumping chamber and diffuser/nozzle element functions as inlet and outlet of micropump with outer dimension of (5 ...
AIDA F. M. SHUKUR   +3 more
doaj  

Modular, Textile‐Based Soft Robotic Grippers for Agricultural Produce Handling

open access: yesAdvanced Robotics Research, EarlyView.
This article introduces textile‐based pneumatic grippers that transform simple textiles into robust bending actuators. Detailed experiments uncover how cut geometry and fabric selection shape performance. Successful handling of fragile agricultural items showcases the potential of textile robotics for safe, scalable automation in food processing and ...
Zeyu Hou   +4 more
wiley   +1 more source

Coupling Deformation Induced by Dewatering and Deep Excavation of Subway Station in Water-Rich Soft Soils

open access: yesGeofluids
The insertion ratio of the diaphragm wall is crucial for the deformation control of the deep excavation of a subway station in water-rich soft soils. Taking the deep excavation project of a subway station in water-rich soft soils as the background, a ...
Junwei Wang   +5 more
doaj   +1 more source

Natural shaping of the cylindrically polarized beams

open access: yes, 2010
We have experimentally and theoretically shown that the circularly polarized beam bearing singly charged optical vortex propagating through a uniaxial crystal can be split after focusing into the radially and azimuthally polarized beams in vicinity of ...
Alexeyev, Constantine   +4 more
core   +1 more source

RUNX2 Activation in Fibro/Adipogenic Progenitors Promotes Muscle Fibrosis in Muscular Dystrophy

open access: yesAdvanced Science, EarlyView.
This study revealed a novel role of the chemokine‐TGF‐β1‐RUNX2 axis in determining the fate of FAP differentiation and modulating muscle fibrosis in patients and mice with muscular dystrophies. ABSTRACT Clinical evidence indicates concurrent muscle inflammation and fibrosis in muscular dystrophies (MDs); however, the molecular mechanisms underlying ...
Pengkai Wu   +12 more
wiley   +1 more source

Enhancing Cycling Stability of Aqueous Aluminum‐Metal Batteries via LaCl3‐Modulated Interfacial Reactions

open access: yesAdvanced Science, EarlyView.
In the aqueous AlCl3 electrolyte of aluminum‐metal batteries, the introduction of LaCl3 adjusts the solvation structure of Al3+ and enhances its diffusion level. The oxide precipitate formed by La3+ covers the aluminum metal anode and effectively alleviates corrosion reactions, thereby improving the cycling stability of the battery.
Yanshen Gao   +12 more
wiley   +1 more source

Vibrating element electrometer with output signal magnified over input signal by a function of the mechanical Q of the vibrating element Patent [PDF]

open access: yes, 1968
Vibrating element electrometer producing high conversion gain by input current control of elements resonant frequency displacement ...
Coon, G. W., Dimeff, J.
core   +1 more source

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