Results 31 to 40 of about 3,932,847 (285)

Measurement of the Film Thickness, Film Velocity and Entrainment Fraction in a Liquid-Air Annular Flow Using a Conductance Flowmeter [PDF]

open access: yes, 2009
In certain older oil wells in the Middle East, the produced fluid is predominantly natural gas which flows at very high rates (e.g. 50,000 m3 / day ). Smaller quantities of crude oil (e.g. 50m3 / day ) and water (950m3 / day ) are also produced.
Lucas, Gary, A-Yarubi, Qahtan
core   +3 more sources

Spontaneously coherent orbital coupling of counterrotating exciton polaritons in annular perovskite microcavities

open access: yesLight: Science & Applications, 2021
Exciton-polariton condensation is regarded as a spontaneous macroscopic quantum phenomenon with phase ordering and collective coherence. By engineering artificial annular potential landscapes in halide perovskite semiconductor microcavities, we ...
Jun Wang   +6 more
doaj   +1 more source

Frame Memory Compression Algorithm Combing Annular Texture and Bit Reservoir [PDF]

open access: yesJisuanji gongcheng, 2017
Aiming at the shortcomings of high image distortion rate of existing frame memory compression algorithms for high resolution flat panel display,a frame memory compression algorithm based on image annular texture and bit reservoir technology is proposed ...
YANG Hongbai
doaj   +1 more source

A new measurement method for radial permeability and porosity of shale

open access: yesPetroleum Research, 2017
To more conveniently and accurately obtain the radial permeability of shale, a new measurement method was proposed for the pressure attenuation of radial permeability and porosity in shale.
Zehao Yang, Mingzhe Dong
doaj   +1 more source

Spherical means in annular regions in the n-dimensional real hyperbolic spaces [PDF]

open access: yesProceedings - Mathematical Sciences, 2011
published: Proc. Indian. Acad.
Rawat, Rama, Srivastava, R. K.
openaire   +3 more sources

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

Efficiency of a jet pump with an automatic flow regulation system when pumping gas from the annular space of production wells

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов
Relevance. Reducing the pressure of accumulating gas in the annular space when pumping oil-gas-water mixture is an urgent task due to the decrease in inflow from the formation.
Kamil R. Urazakov   +3 more
doaj   +1 more source

Free Vibration Analysis of Fiber Metal Laminate Annular Plate by State-Space Based Differential Quadrature Method

open access: yesAdvances in Materials Science and Engineering, 2014
A three-dimensional elasticity theory by means of a state-space based differential quadrature method is presented for free vibration analysis of fiber metal laminate annular plate.
G. H. Rahimi   +3 more
doaj   +1 more source

Two Contact Problems for Annular Rigid Stamp on an Elastic Half Space

open access: yesНаука и техника, 2018
The paper presents solutions of two contact problems for the annular plate die on an elastic half-space under the action of axisymmetrically applied force and moment.
S. V. Bosakov
doaj   +1 more source

Waveguide Analysis of Radiofrequency Transmission in Well Tubulars for Electromagnetic Heating of Heavy Oil

open access: yesIEEE Access, 2023
This paper presents the numerical modelling and simulation of a 2D vertical well tubular model excited by a coaxial radiofrequency transmission line placed in its annular space for the purpose of downhole RF energy transmission.
Adamu A. Adamu   +2 more
doaj   +1 more source

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