Results 41 to 50 of about 31,118 (203)

Analytical Solutions of Open String Field Theory

, 2011
In this work we review Schnabl's construction of the tachyon vacuum solution to bosonic covariant open string field theory and the results that followed.
Acosta, Arefeva, Arefeva, Arefeva, Arefeva, Arefeva, Aref’eva, Aref’eva, Aref’eva, Aref’eva, Aref’eva, Asano, Asano, Bagchi, Bars, Bars, Bars, Bars, Bars, Bars, Batalin, Batalin, Batalin, Belavin, Belopolsky, Belov, Belov, Belov, Belov, Bergman, Bergshoeff, Berkovits, Berkovits, Berkovits, Berkovits, Berkovits, Berkovits, Berkovits, Berkovits, Berkovits, Berkovits, Berkovits, Bochicchio, Bochicchio, Bonora, Bonora, Bonora, Bonora, Bonora, Bonora, Bordes, Boyarsky, Boyarsky, Brekke, Cacciatori, Calcagni, Callan, Coletti, Cremmer, de Mello Koch, De Smet, De Smet, Douglas, Drukker, Drukker, Drukker, Ehud Fuchs, Ellwood, Ellwood, Ellwood, Ellwood, Ellwood, Ellwood, Erler, Erler, Erler, Erler, Erler, Erler, Feng, Forini, Freund, Friedan, Fuchs, Fuchs, Fuchs, Fuchs, Fuchs, Fuchs, Fuchs, Fuchs, Fuchs, Fuchs, Fuchs, Fuji, Furuuchi, Furuuchi, Gaiotto, Gaiotto, Gaiotto, Gaiotto, Garousi, Gates, Gerasimov, Ghoshal, Ghoshal, Giddings, Giddings, Giddings, Giusto, Gomis, Gross, Gross, Gross, Gross, Gross, Grushevsky, Harvey, Hashimoto, Hata, Hata, Hata, Hata, Henneaux, Horowitz, Horowitz, Ihl, Imbimbo, Iqbal, Ishida, Jokela, Katsumata, Kawano, Kawano, Kawano, Kiermaier, Kiermaier, Kiermaier, Kiermaier, Kiermaier, Kishimoto, Kishimoto, Kishimoto, Kling, Kling, Kluson, Kluson, Kluson, Kluson, Kostelecky, Kostelecky, Kostelecky, Kostelecky, Kroyter, Kroyter, Kroyter, Kutasov, Kwon, Kwon, Leclair, Leclair, Lian, Maccaferri, Maccaferri, Maeno, Marcus, Matone, Michael Kroyter, Michishita, Moeller, Moeller, Moeller, Moeller, Moeller, Moeller, Moeller, Moeller, Moore, Morozov, Mukhopadhyay, Narganes-Quijano, Neveu, Ohmori, Ohta, Okawa, Okawa, Okawa, Okawa, Okawa, Okawa, Okawa, Okuyama, Okuyama, Polchinski, Preitschopf, Rastelli, Rastelli, Rastelli, Rastelli, Rastelli, Rastelli, Rastelli, Rastelli, Rastelli, Rastelli, Recknagel, Samuel, Samuel, Saroja, Schnabl, Schnabl, Schnabl, Schnabl, Schnabl, Schnabl, Seiberg, Sen, Sen, Sen, Sen, Sen, Sen, Sen, Sen, Sen, Sen, Sen, Sen, Sen, Sen, Sen, Sen, Sen, Shatashvili, Shatashvili, Siegel, Siegel, Siegel, Sugawara, Sugino, Takahashi, Takahashi, Takahashi, Takahashi, Taylor, Thorn, Thorn, Uhlmann, Urosevic, Voronov, Wendt, Witten, Witten, Witten, Witten, Yang, Yang, Yang, Yang, Yang, Zwiebach, Zwiebach, Zwiebach, Zwiebach, Zwiebach, Zwiebach   +265 more
core   +1 more source

Simulation Research on the Forming Process of Large Axles Rolled by Cross-Wedge Rolling

Transactions of FAMENA, 2022
As a novel metal forming process, cross-wedge rolling (CWR) is widely used in the manufacture of large axles in the rail transportation industry. When the forming process of the axle is studied, its formability becomes one of the key issues in the metal forming process. This paper takes LZ50 axle steel as the research object. Through the application of
Gao, Hongwei, Fan, Qinhong, Chu, Zhibing
openaire   +2 more sources

Belarus cross-wedge rolling school of thought

Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2016
At present Belarus school of thought that unites cross-wedge rolling researchers and manufacturing engineers is recognized as one of the world leading schools of thought in this field.
V. Ya. Shchukin, G. V. Kozhevnikova
doaj  

Study on roll-cutting forming method of conical end blank for cross wedge rolling (CWR) without stub bar

Metalurgija, 2020
Using conical end blanks is an effective method to improve the concave defects of cross wedge rolling, while the common method to get conical end blanks is machining, still causing material loss.
R. Wang, Y. Wang, H. Wang, J. Y. Chen, X. D. Shu   +4 more
doaj  

SOFTWARE FOR COMPUTER-AIDED DESIGN OF CROSS-WEDGE ROLLING

Informatika, 2016
The issues of computer technology creation of 3D-design and engineering analysis of metal forming processes using cross wedge rolling methods (CWR) are considered.
A. A. Abramov, S. V. Medvedev
doaj  

Evaluation of a high performance, fixed-ratio, traction drive [PDF]

, 1983
A test program was initiated to evaluate the key operational and performance factors associated with the Nasvytis multiroller concept. Two sets of Nasvytis drives, each of slightly geometry, were parametrically tested on a back to back test stand ...
Anderson, N. E., Loewenthal, S. H., Rohn, D. A.   +2 more
core   +1 more source

Modified Cross-Wedge Rolling for Creating Hollow Shafts

Procedia Manufacturing, 2018
Abstract Cross-wedge rolling (CWR) is an incremental forming method for producing rotationally symmetric components such as a basic shape of gear shaft or a preform before impression die forging. In CWR the material of a solid cylindrical billet is redistributed in axial direction while the billet diameter is reduced. Conventional CWR cannot be used
Dirk Landgrebe, Jürgen Steger, Uwe Böhmichen, Markus Bergmann   +3 more
openaire   +1 more source

Numerical Analysis of the Cross-Wedge Rolling Process by Means of Three Tools of Stepped Shafts From Aluminum Alloy 7075

Archives of Metallurgy and Materials, 2015
This paper presents results of numerical calculations for the rolling process by means of three tools of stepped shafts from aluminum alloy 7075. Forming with the usage of tools with three different wedge spreading angles underwent analysis. In the paper,
Bartnicki J., Tomczak J., Pater Z.
doaj   +1 more source

Effects Of Thermal Exchange On Material Flow During Steel Thixoextrusion Process [PDF]

, 2010
Semi-solid processing is an innovative technology for near net-shape production of components, where the metallic alloys are processed in the semi-solid state.
BECKER, Eric, BIGOT, Régis, GU, Guochao, LANGLOIS, Laurent, PESCI, Raphaël   +4 more
core   +5 more sources

A New Cross Wedge Rolling Process for Producing Rail Axles

MATEC Web of Conferences, 2018
Rail axles are large-size parts produced in large batches. Currently, these parts are produced by metal forming techniques such as rotary forging, open die forging with hydraulic presses and open die hammer forging (minimum ram weight: 3 Mg ...
Pater Zbigniew, Tomczak Janusz
doaj   +1 more source