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]
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
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
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
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]
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
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]
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]
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 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]
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

