Results 41 to 50 of about 447,007 (315)

The complete mitochondrial genome of the house dust mite Dermatophagoides pteronyssinus (Trouessart): a novel gene arrangement among arthropods [PDF]

open access: yes, 2009
Background: The apparent scarcity of available sequence data has greatly impeded evolutionary studies in Acari (mites and ticks). This subclass encompasses over 48,000 species and forms the largest group within the Arachnida.
Dermauw, Wannes   +3 more
core   +3 more sources

Effect of process parameters on the force parameters in warm skew rolling of copper ball

open access: yesMetalurgija, 2022
In order to better control the forming quality of copper ball by warm skew rolling process, a Finite Element Model (FEM) of copper ball warm skew rolling for the coupling of thermal and mechanical was established.
J. Y. Yuan   +5 more
doaj  

Numerical analysis of a skew rolling process for producing a crankshaft preform

open access: yesOpen Engineering, 2016
The paper describes a new method for forming a crankshaft preform. The method is based on the skew rolling technique. With this method the part is formed by three tapered rolls rotated with the same velocity and in the same direction. Simultaneously, the
Lis Konrad   +2 more
doaj   +1 more source

Numerical and experimental study on forming preforms in a CNC skew rolling mill

open access: yesArchives of Civil and Mechanical Engineering, 2022
This paper relates to a study on the formation of elongated preforms in a CNC skew rolling mill. First, a numerical analysis was performed to investigate forming processes for three different parts: a scraper, a connecting rod, and a hook. The shapes and
Z. Pater   +3 more
semanticscholar   +1 more source

Fano 3-folds in codimension 4, Tom and Jerry, Part I [PDF]

open access: yes, 2011
This work is part of the Graded Ring Database project [GRDB], and is a sequel to [Altinok's 1998 PhD thesis] and [Altinok, Brown and Reid, Fano 3-folds, K3 surfaces and graded rings, in SISTAG (Singapore, 2001), Contemp. Math. 314, 2002, pp. 25-53].
Altınok   +9 more
core   +1 more source

Theoretical And Experimental Analysis Of Aluminium Bars Rolling Process In Three-High Skew Rolling Mill

open access: yesArchives of Metallurgy and Materials, 2015
Technology of round bars rolling on a three-high skew rolling mills allows rolling of standard materials such as steel and aluminum, as well as new materials, especially hard deformable materials.
Stefanik A.   +3 more
doaj   +1 more source

Delay-insensitive pipelined communication on parallel buses [PDF]

open access: yes, 1995
Consider a communication channel that consists of several subchannels transmitting simultaneously and asynchronously. As an example of this scheme, we can consider a board with several chips.
Blaum, Mario, Bruck, Jehoshua
core   +1 more source

A New Method of Manufacturing Small-Diameter Bars and Tubes from Hardly Deformable Steels in Skew Rolling [PDF]

open access: yesMetalurgija, 2007
The paper discusses the process of hot rolling on skew rolling mills and compares it with other methods of manufacturing rods (shape milling) and tubes (pilger rolling).
Gałkin, A. M.   +2 more
doaj  

The Influence of Bearing Ring Inclination on Precision Ball Bearing Contact and Heat Generation Performance

open access: yesLubricants, 2022
The assembly quality between bearing components will lead to an increase in the load imbalance of each rolling element, which becomes a factor that affects the heat generation of precision bearings.
Bei Yan, Xiaohong Zhang, Zanfei Zhu
doaj   +1 more source

Strain localization analysis using a multiscale model [PDF]

open access: yes, 2007
In order to analyze the formability of steels in sheet metal forming, a ductility loss criterion is coupled with a multiscale model. The behavior at the mesoscopic (grain) scale is modeled by a large strain micromechanical constitutive law, which is then
ABED-MERAIM, Farid   +4 more
core   +8 more sources

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