Results 121 to 130 of about 74,223 (298)
FINITE ELEMENT MODELLING OF AN ULTRASONIC ROTARY MOTOR [PDF]
Fiabilitate şi Durabilitate, 2014 This paper tackles the use of ultrasonic motors with three degrees of freedom in view of various applications. In nanotechnology, due to their high precision values, fast speeds and response, the piezo positioning systems have become a key component in
OANA CHIVU, DAN DOBROTA, CLAUDIU BABIS
doaj
A novel spherical ultrasonic motor with wire stators and measuring torque and preload via a new method. [PDF]
Sci Rep, 2023 Jahantab SH +3 more
europepmc +1 more source
Advanced Functional Materials, EarlyView.Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He +5 more
wiley +1 more source
Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites
Advanced Functional Materials, EarlyView.Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles +16 more
wiley +1 more source
Nominal-Model-Based Sliding-Mode Control for Traveling-Wave Ultrasonic Motor. [PDF]
Micromachines (Basel), 2022 Liang J, Jing K, Dong Y, Lin X, Wang Y.
europepmc +1 more source
Adjustable Compliant Motion of Ultrasonic Motor
Journal of Robotics and Mechatronics, 1993 As actuators for a prosthetic arm, we used traveling wave ultrasonic motors. The arm must move in compliance with the environmental force around every joint of it as in the human arm. In order to realize the compliant arm, it is desired that the actuator have an adjustable compliance and damping characteristics without interaction force control ...
Atsuo Kato, Koji Ito, Masami Ito
openaire +1 more source
Changes of ultrasound characteristics of mango juice during fruit ripening [PDF]
, 2012 Attenuation and propagation velocity of ultrasound signals at 25 MHz were measured on clear mango juice samples using a pulse echo method. Ultrasound characteristics were determined with other physico-chemical characteristics on juice samples extracted ...
Laux, Didier +2 more
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Integration of Low‐Voltage Nanoscale MoS2 Memristors on CMOS Microchips
Advanced Functional Materials, EarlyView.This article presents the first monolithic integration of nanoscale MoS2‐based memristors into the back‐end‐of‐line of foundry‐fabricated CMOS microchips in a one‐transistor‐one‐resistor (1T1R) architecture. The MoS2‐based 1T1R cells exhibit forming‐free, nonvolatile resistive switching with ultra‐low operating voltages, low cycle‐to‐cycle variability ...
Jimin Lee +16 more
wiley +1 more source
Research on Fast and Precise Positioning Strategy of an Ultrasonic Motor Based on the Ultrasonic Friction Reduction Theory. [PDF]
Micromachines (Basel), 2022 Zeng W +5 more
europepmc +1 more source
Control of the electric wheelchair using EEG classification [PDF]
, 2015 Electric wheelchairs are some of the most important devices to assist physically handicapped persons. This paper presents the concept of brain controlled electric wheelchair designed for people who are not able to use other interfaces such as a hand ...
Malý, L.
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