Results 21 to 30 of about 956,093 (298)

Phase Converter of Composing Displacement

Bulletin of the South Ural State University. Ser. Computer Technologies, Automatic Control & Radioelectronics, 2016
Minimax strategy of mechatronic converters efficiency improving relative to error decrease with velocity increase at the same time provides common dataware level rise. The analysis of usage possibilities of different type position transducers (PT) gives the advantages of resolvers.
SMIRNOV YU.S., LYSOV A.N., YURASOVA E.V., SAFRONOV V.V., VSTAVSKAYA E.V.   +4 more
openaire   +4 more sources

Detection of Zak phases and topological invariants in a chiral quantum walk of twisted photons [PDF]

, 2017
Topological insulators are fascinating states of matter exhibiting protected edge states and robust quantized features in their bulk. Here, we propose and validate experimentally a method to detect topological properties in the bulk of one-dimensional ...
Cardano, F., Cataudella, V., D'Errico, A., Dauphin, A., De Filippis, G., de Lisio, C., Lewenstein, M., Maffei, M., Marrucci, L., Massignan, P., Piccirillo, B., Santamato, E.   +11 more
core   +3 more sources

A New Method to Verify the Measurement Speed and Accuracy of Frequency Modulated Interferometers

Applied Sciences, 2021
The measurement speed and measurement accuracy of a displacement measuring interferometer are key parameters. To verify these parameters, a fast and high-accuracy motion is required.
Toan-Thang Vu, Thanh-Tung Vu, Van-Doanh Tran, Thanh-Dong Nguyen, Ngoc-Tam Bui   +4 more
doaj   +1 more source

Relative permeability model of polymer particle dispersed phase for oil displacement based on fractal theory [PDF]

Youqicang pingjia yu kaifa
In the later stage of water injection development, the rapid increase in water content significantly degrades the development performance of water drive reservoirs.
CUI Chuanzhi, SUI Yingfei, WANG Yidan, WU Zhongwei, LI Jing
doaj   +3 more sources

Effect of Wettability Heterogeneity on Water-Gas Two-Phase Displacement Behavior in a Complex Pore Structure by Phase-Field Model

Energies, 2022
Understanding the immiscible displacement mechanism in porous media is vital to enhancing the hydrocarbon resources in the oil and gas reservoir. Improving resource recovery requires quantitatively characterizing the effect of wettability heterogeneity ...
Wenbo Gong, Jinhui Liu
doaj   +1 more source

A phase-field model for cohesive fracture [PDF]

, 2013
In this paper, a phase-field model for cohesive fracture is developed. After casting the cohesive zone approach in an energetic framework, which is suitable for incorporation in phase-field approaches, the phase-field approach to brittle fracture is ...
Auricchio, Belytschko, Borden, Borst, Borst, Borst, Borst, Bourdin, Bourdin, Bourdin, Camacho, Comi, Fleming, Francfort, Geers, Gravouil, Hofacker, Ingraffea, Miehe, Miehe, Moës, Moës, Mumford, Ngo, Peerlings, Pijaudier-Cabot, Rashid, Remmers, Wells, Xu   +29 more
core   +2 more sources

Impact of Pore-Scale Characteristics on Immiscible Fluid Displacement

Geofluids, 2020
Immiscible fluid flows (drainage displacement) where nonwetting fluid invades porous media filled with wetting fluid are frequently observed. Numerous studies have confirmed the existence of three different displacement patterns which depend on the ...
Nariman Mahabadi, Leon van Paassen, Ilenia Battiato, Tae Sup Yun, Hyunwook Choo, Jaewon Jang   +5 more
doaj   +1 more source

Periodic patterns displace active phase separation

New Journal of Physics, 2021
Abstract In this work we identify and investigate a novel bifurcation in conserved systems. This secondary bifurcation stops active phase separation in its nonlinear regime. It is then either replaced by an extended, system-filling, spatially periodic pattern or, in a complementary parameter region, by a novel hybrid state with spatially
Frederik J Thomsen, Lisa Rapp, Fabian Bergmann, Walter Zimmermann   +3 more
openaire   +5 more sources

Geometric displacement volume and flow in the phase of a two-phase hydraulic converter

Research in Agricultural Engineering, 2007
The paper researches the possibilities to replace the parallel flow hydraulic mechanisms in agricultural machinery with hydraulic units with fluid alternating flow as they provide more efficient operation due to their output alternating motion.
J. Turza, Z. Tkáč, M. Gullerová
doaj   +1 more source

A complete solution of cartographic displacement based on elastic beams model and Delaunay triangulation [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
In map production and generalization, it is inevitable to arise some spatial conflicts, but the detection and resolution of these spatial conflicts still requires manual operation.
Y. Liu, Q. Guo, Y. Sun
doaj   +1 more source