Results 11 to 20 of about 9,373,613 (338)

Guided-wave and leakage characteristics of substrate integrated waveguide

open access: yesIEEE Transactions on Microwave Theory and Techniques, 2005
The substrate integrated waveguide (SIW) technique makes it possible that a complete circuit including planar circuitry, transitions, and rectangular waveguides are fabricated in planar form using a standard printed circuit board or other planar processing techniques.
Feng Xu, K. Wu
semanticscholar   +4 more sources

Effect of internal leakage on torque converter characteristics [PDF]

open access: yesAdvances in Mechanical Engineering, 2020
To understand the effect of internal leakage on the torque field and characteristics of a torque converter (TC), a transient analysis was performed on the internal flow of a TC and the pressure pulsation characteristics of monitoring points in the ...
Xiong Pan   +4 more
doaj   +2 more sources

Characteristics of Central Serous Chorioretinopathy without Leakage

open access: yesJournal of Current Ophthalmology, 2021
Purpose: To describe optical coherence tomography (OCT) characteristics of central serous chorioretinopathy (CSCR) without any hyperfluorescent leakage on fundus fluorescein angiography (FFA). Methods: This was a multicentric, retrospective, observational study of ten eyes of ten ...
Parameswarappa, Deepika C.   +4 more
openaire   +3 more sources

A Study on the Leakage Characteristics of a Stepped Labyrinth Seal with a Ribbed Casing

open access: yesEnergies, 2021
A new type of stepped seal with a ribbed casing is proposed to efficiently reduce the leakage at the tips of turbine blades. The leakage characteristics of two different types of labyrinth seals (conventional seal vs.
Minjae Hur, S. Moon, T. Kim
semanticscholar   +1 more source

Effect of Tip Clearance Size on Tubular Turbine Leakage Characteristics

open access: yesProcesses, 2021
To study the effect of tip clearance on unsteady flow in a tubular turbine, a full-channel numerical calculation was carried out based on the SST k–ω turbulence model using a power-plant prototype as the research object.
Xin-rui Li   +3 more
semanticscholar   +1 more source

Study on Dynamic Lubrication Characteristics of the External Return Spherical Bearing Pair under Full Working Conditions

open access: yesMachines, 2022
In order to study the frictional lubrication characteristics of a piston pump under varying loads and speeds in actual work, mathematical models, such as a cylinder dynamics model, cylinder micro-motion model, and external return spherical bearing pair ...
Haishun Deng   +3 more
doaj   +1 more source

Air leakage characteristics in cracked concrete [PDF]

open access: yesNuclear Engineering and Design, 1995
Abstract In this paper a mathematical formulation for the air leakage rate through cracks in concrete is given. The formula works well as a good approximation for crack widths up to 1.30 mm and overpressures up to 0.80 MPa. The formula was found by means of systematic air leakage tests using unreinforced test specimens with one “defined single crack”.
U. Greiner, W. Ramm
openaire   +1 more source

CFD analysis and calculation models establishment of leakage of natural gas pipeline considering real buried environment

open access: yesEnergy Reports, 2022
Different from the above ground pipeline, the soil characteristics and ground conditions have a great impact on the risk of leakage accident for buried natural gas pipeline.
Fanxi Bu   +6 more
doaj   +1 more source

Thermal leakage characteristics of Pt∕SrTiO3∕Pt structures [PDF]

open access: yesJournal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 2008
Thermal leakage characteristics of Pt/SrTiO 3 /Pt structures Junwoo Son and Susanne Stemmer a) Materials Department, University of California, Santa Barbara, CA 93106-5050, U.S.A. a) Corresponding author; electronic mail: stemmer@mrl.ucsb.edu MATERIAL NAMES: strontium titanate (SrTiO 3 ), platinium (Pt), barium strontium titanate (Ba,SrTiO 3 )
Son, Junwoo, Stemmer, Susanne
openaire   +3 more sources

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