Results 31 to 40 of about 956,093 (298)

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

Physicochemical Properties and its Variation Law of Microemulsion Phase When Microemulsion Flooding [PDF]

open access: yesE3S Web of Conferences, 2021
The composition change of microemulsion system in microemulsion flooding will inevitably cause the change of phase behavior. Microemulsion with different phase types directly affects its performance and displacement efficiency of microemulsion flooding ...
Wang Dongqi, Yin Daiyin, Wang Junda
doaj   +1 more source

Heisenberg Limit Superradiant Superresolving Metrology [PDF]

open access: yes, 2014
We propose a superradiant metrology technique to achieve the Heisenberg limit super-resolving displacement measurement by encoding multiple light momenta into a three-level atomic ensemble.
Scully, Marlan O., Wang, Da-Wei
core   +3 more sources

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

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

Anomalous change in leakage and displacement currents after electrical poling on lead-free ferroelectric ceramics [PDF]

open access: yes, 2015
We report the polarization, displacement current and leakage current behavior of a trivalent nonpolar cation Al cation substituted lead free ferroelectric NBT-BT electroceramics with tetragonal phase and P4mm space group symmetry.
Ashok Kumar   +7 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

Size effects in the thin films of order - disorder ferroelectrics subject to the depolarization field

open access: yes, 2004
The films of order-disorder type ferroelectrics were considered in the mean field approximation taking into account depolarization field. It was shown that size effects in this system could be described on the base of bulk system equation of state with ...
Blinc   +8 more
core   +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

Experiments and DEM Simulations of Granular Ratcheting [PDF]

open access: yes, 2017
In this work we studied the effect of cyclic loading on a granular packing by means of numerical simulations and experiments. A confined packing of glass beads was prepared and one of the walls was moved cyclically with a prescribed amplitude of the ...
Artoni, Riccardo   +2 more
core   +1 more source

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