Results 11 to 20 of about 41,939 (274)

Micromechanics analysis of thermal expansion and thermal pressurization of a hardened cement paste [PDF]

Cement and Concrete Research, 2011
The results of a macro-scale experimental study of the effect of heating on a fluid-saturated hardened cement paste are analysed using a multi-scale homogenization model.
Siavash Ghabezloo
exaly   +6 more sources

Using the Nonlinear Duffing Effect of Piezoelectric Micro-Oscillators for Wide-Range Pressure Sensing

Actuators, 2021
This paper investigates the resonant behaviour of silicon-based micro-oscillators with a length of 3600 µm, a width of 1800 µm and a thickness of 10 µm over a wide range of ambient gas (N2) pressures, extending over six orders of magnitude from 10−3 mbar
Tobias Zengerle, Michael Stopp, Abdallah Ababneh, Helmut Seidel   +3 more
doaj   +1 more source

A Concept for Application of Hall Sensors in Measurement of Magnetic Field over Magnetic Catapult Tracks [PDF]

Problemy Mechatroniki, 2019
The growing demand for commercial unmanned aerial vehicles (UAV) requires that innovative technical solutions for the critical aspects of UAV servicing, must be researched. The magnetic catapult discussed in this work is an interesting alternative to the
Sławomir CZUBAJ, Anna SIBILSKA-MROZIEWICZ, Edyta ŁADYŻYŃSKA-KOZDRAŚ   +2 more
doaj   +1 more source

Preliminary Concept of an Unmanned Aerial Vehicle for Patrolling of Water Basins [PDF]

Problemy Mechatroniki, 2019
The paper presents a preliminary concept of an unmanned aerial vehicle (UAV) designed with a form of the Kasper wing (known in Polish as the ‘Kasprzyk wing’) and intended for aerial patrolling and monitoring of large water basins, mass gatherings, ground
Edyta ŁADYŻYŃSKA-KOZDRAŚ, Sylwester TUDRUJ, Barbara KOZŁOWSKA, Konrad KAMIENIECKI   +3 more
doaj   +1 more source

3D scattering microphantom sample to assess quantitative accuracy in tomographic phase microscopy techniques

Scientific Reports, 2022
In this paper we present a structurally-complex biomimetic scattering structure, fabricated with two-photon polymerization, and utilize this object in order to benchmark a computational imaging system.
Wojciech Krauze, Arkadiusz Kuś, Michał Ziemczonok, Max Haimowitz, Shwetadwip Chowdhury, Małgorzata Kujawińska   +5 more
doaj   +1 more source

MEMS-actuated wavelength drop filter based on microsphere whispering gallery modes [PDF]

, 2011
MEMS-enabled tuneable optical coupling between optical microsphere resonators and optical fibre waveguides is reported. We describe the design, fabrication and experimental characterization of a MEMS platform, based on electrothermal actuators, which ...
Blue, Robert, Flockhart, Gordon M H, Li, Li, Uttamchandani, Deepak   +3 more
core   +9 more sources

Study on Mechanical Problems of Complex Rock Mass by Composite Material Micromechanics Methods: A Literature Review

Frontiers in Earth Science, 2022
The mechanical analysis of complex rock mass is a difficult problem, which often occurs in scientific research and practical engineering. Many achievements have been made in the study of rock mass composite problems by composite material micromechanics ...
Junzhao He, Junzhao He, Yunan Li, Yuling Jin, Anming Wang, Yumin Zhang, Jinchao Jia, Hei Song, Dong Liang   +8 more
doaj   +1 more source

Accurate automatic object 4D tracking in digital in-line holographic microscopy based on computationally rendered dark fields

Scientific Reports, 2022
Building on Gabor seminal principle, digital in-line holographic microscopy provides efficient means for space–time investigations of large volumes of interest.
Mikołaj Rogalski, Jose Angel Picazo-Bueno, Julianna Winnik, Piotr Zdańkowski, Vicente Micó, Maciej Trusiak   +5 more
doaj   +1 more source

Fully quantitative transmission Optical Coherence Tomography for analysis of multiple-scattering samples [PDF]

EPJ Web of Conferences
We present a fully quantitative full-field optical coherence tomography realized in transmission. This method allows, for the first time, a direct and fast retrieval of the complex amplitude of light that propagated through the sample of interest.
Krauze Wojciech, Mazur Martyna, Zdańkowski Piotr, Kuś Arkadiusz, Trusiak Maciej, Kujawińska Małgorzata   +5 more
doaj   +1 more source

Deep learning enabled single-shot absolute phase recovery in high-speed composite fringe pattern profilometry of separated objects

Opto-Electronic Advances, 2023
A recent article in the Opto-Electronic Advances (OEA) journal from Prof. Qian Chen and Prof. Chao Zuo’s group introduced a new and efficient 3D imaging system that captures high-speed images using deep learning-enabled fringe projection profilometry ...
Maciej Trusiak, Malgorzata Kujawinska
doaj   +1 more source