Results 121 to 130 of about 6,931,000 (372)

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

Micromachines
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

Phase Feedback Active Stabilisation Of A Multiplexed Fibre Interferometer [PDF]

Current optical technologies for surface measurement such as white light scanning interferometry (WLSI) can produce sub-nanometric resolution areal height information.
Jiang, Xiang, Martin, Haydn
core  

Alat Pengukur Getaran Berbasis Mikrokontroller Atmega 16 Menggunakan Sensor Microphone [PDF]

, 2015
Vibration is a back and forth motion around equilibrium. The equilibrium point is a state where an object is at rest if no force acting on the object. Vibration having amplitude (deviation farthest distance with the midpoint) of the same.
, Dedi Ari Prasetya,ST, , Dr. Ratnasari Nur Rohmah, ST, MT, Munandar, Mahmud Ari   +2 more
core  

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

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

Sensors (Basel), 2023
Xu K, Jiang C, Ban Q, Dai P, Fan Y, Yang S, Zhang Y, Wang J, Wang Y, Chen X, Zeng J, Wang F.   +11 more
europepmc   +1 more source

Direct measurements of formation rates of allylic radicals from vibrationally excited ethylene derivatives [PDF]

, 1984
Nobuaki Nakashima, Nobuo Shimo, Noriaki Ikeda, Keitaro Yoshihara   +3 more
openalex   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

Ultrasonic Transducer Peak-to-Peak Optical Measurement

Advances 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, Pavel Tofel, Pavel Tomanek   +2 more
doaj   +1 more source

Penggunaan Kamera Video Sebagai Alternatif Alat Ukur Getaran Lateral Pada Permesinan Di Kapal [PDF]

, 2012
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.
Poernomo, H. (Heroe)
core  

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source