Results 31 to 40 of about 952,067 (300)

Numerical simulation of water-gas two-phase displacement process in unsaturated granite residual soil

open access: yesShuiwen dizhi gongcheng dizhi, 2021
Infiltration of current in unsaturated soil is essentially a two-phase flow problem of water displacing air in the process of infiltration. The accuracy of traditional two-phase flow research methods cannot meet the needs of engineering, and it is not ...
Peichen CAI, Yun QUE, Xian LI
doaj   +1 more source

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

open access: yesThe 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

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

open access: yesYouqicang 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   +1 more source

Displacement operators: the classical face of their quantum phase

open access: yes, 2017
In quantum mechanics, the operator representing the displacement of a system in position or momentum is always accompanied by a path-dependent phase factor.
Bohr, Eliot A.   +4 more
core   +1 more source

Coaxial displacement sensor using a lateral shear interferometer with a phase grating

open access: yesMeasurement: Sensors, 2021
As a new non-contact method of measuring object displacement, a coaxial displacement sensor using a lateral shear interferometer with a phase grating is proposed.
M. Furuya, E. Fujii, H. Fujiwara
doaj   +1 more source

The effect of the displacement damage on the Charge Collection Efficiency in Silicon Drift Detectors for the LOFT satellite [PDF]

open access: yes, 2015
The technology of Silicon Drift Detectors (SDDs) has been selected for the two instruments aboard the Large Observatory For X-ray Timing (LOFT) space mission.
Bozzo, E.   +9 more
core   +2 more sources

Development of Inductive Current Transformer 400/5/1 of Class 0.2S for Frequency Range 50 Hz–5 kHz

open access: yesSensors
This paper is devoted to the development of a window-type inductive current transformer (iCT) with a rated primary current equal to 400 A and two secondary windings with rated currents of 5 A and 1 A. Its novelty concerns the presentation of this process
Michal Kaczmarek, Blazej Pacholczyk
doaj   +1 more source

Sinusoidal phase-modulation interferometer capable of measuring 1D displacement and 2D in-plane displacement [PDF]

open access: yesEPJ Web of Conferences
Interferometers for displacement measurement with picometer resolution are required. The main cause of degradation of interferometer resolution is air fluctuation. To investigate the effect of air fluctuation on displacement resolution, we have developed
Aketagawa Masato   +3 more
doaj   +1 more source

Electrically driven octahedral rotations in SrTiO3 and PbTiO3

open access: yes, 2012
We investigate the oxygen octahedral rotations that occur in two perovskites, SrTiO3 and PbTiO3, as a function of applied three-dimensional electric displacement field, allowing us to map out the phase diagram of rotations in both the paraelectric and ...
Hong, Jiawang, Vanderbilt, David
core   +1 more source

Numerical simulation of displacement characteristics of CO2 injected in pore-scale porous media

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2016
Pore structure of porous media, including pore size and topology, is rather complex. In immiscible two-phase displacement process, the capillary force affected by pore size dominates the two-phase flow in the porous media, affecting displacement results.
Qianlin Zhu, Qianlong Zhou, Xiaochun Li
doaj   +1 more source

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