Results 71 to 80 of about 97,724 (259)

Perspective projection measurement method for rolling vibration test bench of locomotives and vehicles

open access: yesMechanics & Industry
With the rapid development of railway transportation, using a locomotive and vehicle rolling vibration test bench for dynamic simulation testing is one of the extremely important testing methods in the current locomotive and vehicle development process ...
Zhang Qing, Chen Biao
doaj   +1 more source

Fault Detection Based on a Bio-Inspired Vibration Sensor System

open access: yesIEEE Access, 2018
A novel vibration sensor based on a bio-inspired nonlinear structure with quasi-zero stiffness characteristic is developed for the real-time measurement of absolute vibration motion.
Zhengchao Li, Xingjian Jing, Jinyong Yu
doaj   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

open access: yesAdvanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees   +6 more
wiley   +1 more source

PENGGUNAAN KAMERA VIDEO SEBAGAI ALTERNATIF ALAT UKUR GETARAN LATERAL PADA PERMESINAN DI KAPAL

open access: yesKapal, 2013
General method which often used in measuring lateral vibration in the ship is vibration-meter. This method has some limitation like complicated, high cost, just can measure vibration at house of bearing and cannot measure vibration at shaft which rotated.
Heroe Poernomo
doaj   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou   +3 more
wiley   +1 more source

Microsphere-Based Microsensor for Miniature Motors' Vibration Measurement. [PDF]

open access: yesSensors (Basel), 2023
Xu K   +11 more
europepmc   +1 more source

Robust Electrocaloric Performance Enabled by Highly‐Polar Frustrated Nanodomains in NaNbO3‐Based Ferrodistortive Relaxor

open access: yesAdvanced Functional Materials, EarlyView.
P4bm framework in NaNbO3‐Ba(Ti, Hf)O3 ferrodistortive relaxor entails short‐range and highly‐polar ferrodistortive orders. The abundant highly‐polar orders facilitate to increase entropy change, and robust octahedral oxygen tilt enables to impede thermal perturbations.
Feng Li   +11 more
wiley   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben   +6 more
wiley   +1 more source

Research on a Graded Self-Powered Vibration Sensor for Geological Drilling

open access: yesMicromachines
Downhole vibration measurement is a key link for optimizing drilling parameters and ensuring operational safety; however, powering conventional vibration sensors reduces drilling efficiency and increases drilling costs.
Jingui Zhang, Chuan Wu
doaj   +1 more source

Ultrasonic Transducer Peak-to-Peak Optical Measurement

open access: yesAdvances in Electrical and Electronic Engineering, 2012
Possible optical setups for measurement of the peak-to-peak value of an ultrasonic transducer are described in this work. The Michelson interferometer with the calibrated nanopositioner in reference path and laser Doppler vibrometer were used for the ...
Pavel Skarvada   +2 more
doaj   +1 more source

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