Results 61 to 70 of about 833,093 (205)

Optimizing performance variables for small unmanned aerial vehicle co-axial rotor systems [PDF]

open access: yes, 2011
The aim of this project was to design and build a test-rig that is capable of analyzing small unmanned aerial vehicles (SUAV) co-axial rotor systems.
Stephen Prior   +5 more
core   +1 more source

Study the Axail Dispersion Model in Ion Exchange Column

open access: yesAl-Khawarizmi Engineering Journal, 2009
A mathematical model is developed which predicates the performance of cylindrical ion exchange bed involving comparing of axial dispersion model for cation exchange column with different assumption, this model permits the performance to predicate the ...
Iman Hahider Mahdi
doaj   +2 more sources

Residence time distribution and flow pattern modeling of oilseeds in a pilot screw press☆

open access: yesOilseeds and fats, crops and lipids, 2020
Mechanical expression is widely applied for oil recovery from oilseeds using continuous screw presses. Despite significant recent advances in the field of press design and automation, it remains difficult to predict the press performances based on the ...
Bogaert Laurine   +2 more
doaj   +1 more source

The behavior of the electric field in X and O modes in traveling wave tubes filled with magnetized plasma

open access: yesResults in Physics, 2016
In this article magnetized plasma filled traveling wave tubes are investigated. The mentioned system, is located inside a cylindrical wall. The space between the helix and the wall is filled with dielectric material.
M. Shaban, A. Baharvand, S. Saviz
doaj   +1 more source

Fabrication and analysis of mechanical properties of PVC/Glass fiber/graphene nano composite pipes

open access: yesMaterials Research Express, 2020
The aim of this work is to examine the conventional moulding method for manufacturing the PVC/Glass fiber/graphene nano composites. Uniform graphene dispersion is observed with the matrix for better bonding.
G Shanmugasundar   +6 more
doaj   +1 more source

L'articolo Taming Axial Dispersion in Hydrodynamic Chromatographic Columns through Wall Patterning, Physics of Fluids 30, 042002 (2018); doi: 10.1063/1.5022257 di A. Adrover, S. Cerbelli, M Giona e' stato selezionato come Top papers in Physics of Fluids 2018

open access: yes, 2018
A well-known limitation of hydrodynamic chromatography arises from the synergistic interaction between transverse diffusion and streamwise convection, which enhances axial dispersion through the Taylor-Aris mechanism.
Alessandra Adrover   +2 more
core  

Hyperbolic axial dispersion model [PDF]

open access: yes, 2012
Axial dispersion model is most reliable tool for analyzing the transient response of flow system inside a bundle of pipes. The proposed hyperbolic model considers propagation velocity of flow disturbance to be finite and even of the order of flow ...
Dalai, Radharaman
core  

Liquid-Phase Back mixing in Bubble Columns

open access: yesTikrit Journal of Engineering Sciences, 2013
Liquid-phase axial dispersion coefficients have been measured for air-water system in bubble columns of 10, 15 and 30 cm diameter. The experiments are carried out using a transient method (the tracer response method).
Burhan S. Abdulrazak
doaj  

Cone mosaic in eyes with varied axial length using adaptive optics scanning laser ophthalmoscopy

open access: yesPhotodiagnosis and Photodynamic Therapy
Background: Abnormalities in cone photoreceptor topography are closely associated with the development of various ocular diseases, including axial myopia.
Wen-Da Zhou   +11 more
doaj   +1 more source

Online Price Dispersion Within and Between Seven European Countries [PDF]

open access: yes, 2004
This paper provides a comprehensive analysis of online price dispersion in Europe, across a broad range of product categories and countries. Using the dominant European price comparison site we collected firm specific prices, weekly, from sevcn ...

core   +2 more sources

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