Results 11 to 20 of about 4,933,004 (245)

EXPERIMENTAL PROCESS RESEARCH OF CYLINDRICAL DETAILS VIBROFINISHING (ABRADING) BY TRANSPORTATION ON A FLAT FLUCTUATING SURFACE

open access: yesВестник Донского государственного технического университета, 2018
The results of development and experimental tests of vibrofinishing (abrading) cylindrical details by riding on a flat fluctuating surface are presented.
Nikolay V. MATEGORIN   +2 more
doaj   +1 more source

Effect on oxides on surface topography and thermal contact resistance [PDF]

open access: yes, 1979
The effect of oxides on the topographies of various random engineering surfaces and steady-state thermal contact resistances between oxidefree and oxidized metallic surfaces in contact in high vacua have been investigated. The results of many previous
Mian, M. N.
core   +7 more sources

Performance analysis of Pareto optimal bearings subject to surface error variations [PDF]

open access: yes, 2010
A Pareto optimization study was carried out on a flat pad aerostatic bearing design. Some of the Pareto optimal configurations were then subjected to surface profiling errors including tilt, concavity, convexity and waviness and key performance ...
Barrans, Simon   +7 more
core   +1 more source

Ridge Cultivation for the Adaption of Fodder Maize (Zea mays L.) to Suboptimal Conditions of Low Mountain Ranges in Organic Farming in Central Europe

open access: yesAgriculture, 2023
Fodder maize cultivation under low mountain conditions in Central Europe presents obstacles for organic dairy farmers; low temperatures and high precipitation values in spring delay the juvenile development of maize, which leads to lower and fluctuating ...
Tsvetelina Krachunova   +3 more
doaj   +1 more source

Role of diatoms in the spatial-temporal distribution of intracellular nitrate in intertidal sediment. [PDF]

open access: yesPLoS ONE, 2013
Intracellular nitrate storage allows microorganisms to survive fluctuating nutrient availability and anoxic conditions in aquatic ecosystems. Here we show that diatoms, ubiquitous and highly abundant microalgae, represent major cellular reservoirs of ...
Peter Stief, Anja Kamp, Dirk de Beer
doaj   +1 more source

Statistical characteristics of spanwise vortex in open-channel turbulence with step-shaped spur dike

open access: yesShuili Shuiyun Gongcheng Xuebao, 2023
The step-shaped spur dike is a common waterway regulation structure. Based on the PIV (Particle Image Velocimetry) open-channel experiment, the distribution laws of turbulence lateral vortex density, vortex area, vortex shape parameters, vortex rotation ...
ZHONG Liang, TAN Yibo, GE Chenxi
doaj   +1 more source

Far Wake and Its Relation to Aerodynamic Efficiency

open access: yesEnergies, 2021
Correlations were found between the aerodynamic efficiency and the mean and fluctuating quantities in the far wake of a wall-to-wall SD7003 model and an AR 4 flat plate.
Sidaard Gunasekaran, Aaron Altman
doaj   +1 more source

Talk and Tour: Dexter Dalwood on Flat Surface Painting

open access: yes, 2016
Bristol born artist and Professor at Bath School of Art and Design, Dexter Dalwood leads a tour of Michael Simpson’s exhibition Flat Surface Painting, drawing out Simpson’s use of space and the mechanics at work in his ...
Dalwood, D
core   +3 more sources

Lateral-drag propulsion forces induced by anisotropy

open access: yesScientific Reports, 2017
We predict the existence of lateral drag forces near the flat surface of an absorbing slab made of an anisotropic material. The forces originate from the fluctuations of the electromagnetic field, when the anisotropy axis of the material forms a certain ...
Igor S. Nefedov, J. Miguel Rubi
doaj   +1 more source

Examining the spatial and temporal variation of groundwater inflows to a valley-to-floodplain river using 222Rn, geochemistry and river discharge: the Ovens River, southeast Australia [PDF]

open access: yesHydrology and Earth System Sciences, 2013
Radon (222Rn) and major ion geochemistry were used to define and quantify the catchment-scale groundwater-surface water interactions along the Ovens River in the southeast Murray–Darling Basin, Victoria, Australia, between September 2009 and October 2011.
M. C. L. Yu   +3 more
doaj   +1 more source

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