Results 81 to 90 of about 275,641 (304)

Airflow control system for supersonic inlets [PDF]

, 1974
In addition to fixed and variable bleed devices provided for controlling the position of a terminal shock wave in a supersonic inlet, a plurality of free piston valves are disposed around the periphery of a cowling of a supersonic engine inlet.
Mitchell, G. A., Sanders, B. W.
core   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source

Performance Analysis of Piezoelectric Energy Harvesting System Under Varying Bluff Body Masses and Diameters—Experimental Study and Validation with 0–1 Test

Applied Sciences
This study presents the experimental results of an energy harvesting system comprising a cylindrical bluff body coupled with a cantilever beam. A piezoelectric sensor was installed on the beam to generate electrical voltage during the object’s vibrations
Paweł Karpiński, Bartłomiej Ambrożkiewicz, Zbigniew Czyż, Grzegorz Litak   +3 more
doaj   +1 more source

Propagating Waves in a Monolayer of Gas-Fluidized Rods [PDF]

, 2010
We report on an observation of propagating compression waves in a quasi-two-dimensional monolayer of apolar granular rods fluidized by an upflow of air. The collective wave speed is an order of magnitude faster than the speed of the particles. This gives
D. J. Durian, L. J. Daniels, R. Brown, R. M. Nedderman   +3 more
core   +4 more sources

Fabric‐Based Wearable Robotic Exoskeleton Gloves: Advancements and Challenges

Advanced Materials Technologies, EarlyView.
This review highlights interdisciplinary technological advances in fabric‐based robotic gloves, focusing on progress in design, fabrication, actuation, sensing, control, and power and energy requirements. It also addresses performance testing and validation, including biomechanical, strength, functional, user experience, and durability assessments, to ...
Ayse Feyza Yilmaz, Gökhan Ince, Ozgur Atalay   +2 more
wiley   +1 more source

Measurement of Atmospheric Turbulence Characteristics by the Ultrasonic Anemometers and the Calibration Processes

Atmosphere, 2019
In ultrasonic equipment (anemometers and thermometers), for the measurement of parameters of atmospheric turbulence, a standard algorithm that calculates parameters from temporary structural functions constructed on the registered data is usually used ...
Victor Nosov, Vladimir Lukin, Eugene Nosov, Andrei Torgaev, Aleksandr Bogushevich   +4 more
doaj   +1 more source

Adaptive Carbon Nanotube Patches for Versatile Electronic Textiles and Wind‐Harvesting Applications

Advanced Materials Technologies, EarlyView.
An adhesion‐tunable electronic textile patch based on a carbon nanotube/paraffin composite is presented, enabling direct, adhesive‐free integration with fabrics. Pressure‐responsive bonding allows reversible or permanent attachment on demand.
Seokwon Joo, Yang‐Hu Park, Da‐Seul Kim, Ju‐Hyung Kim, Yoon‐Kyu Song   +4 more
wiley   +1 more source

CFD Simulation of Air Flow Over an Object with Gable Roof, Revised with Y+ Approach

Transactions of the VŠB: Technical University of Ostrava, Civil Engineering Series, 2016
Aim of this contribution is to provide insight view into analysis focused on obtaining external pressure coefficients on isolated two storey low-rise building with 15° elevation gable roof using Computer Fluid Dynamics simulation and these are compared ...
Králik Juraj
doaj   +1 more source

Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications

Advanced Materials Technologies, EarlyView.
Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke, Moses Kumi, Xiaoming Tao, Junhong Pu   +3 more
wiley   +1 more source

Distributed educated throat stability bypass to increase the stable airflow range of a Mach 2.5 inlet with 60-percent internal contraction [PDF]

The results of an experimental investigation to increase the stable airflow operating range of a supersonic mixed-compression inlet are presented. A distributed educated throat stability-bypass entrance configuration was tested. In terms of diffuser-exit
Mitchell, G. A., Sanders, B. W., Shaw, R. J.   +2 more
core   +1 more source