The categories ofA ?- andE ?-monoids and ring spaces as closed simplicial and topological model categories

1991 ◽  
Vol 56 (4) ◽  
pp. 405-411 ◽  
Author(s):  
R. Schw�nzl ◽  
R. M. Vogt
Keyword(s):  
Topological Model ◽  
Model Categories

scholarly journals Topological Model Categories Generated by Finite Complexes

2003 ◽  
Vol 139 (2) ◽  
pp. 129-150 ◽  
Author(s):  
Alex Chigogidze ◽  
Alexandr Karasev
Keyword(s):  
Topological Model ◽  
Model Categories

scholarly journals On the construction of functorial factorizations for model categories

2013 ◽  
Vol 13 (2) ◽  
pp. 1089-1124 ◽  
Author(s):  
Tobias Barthel ◽  
Emily Riehl
Keyword(s):  
Model Categories

scholarly journals Characterization of the arcD arginine:ornithine exchanger of Pseudomonas aeruginosa. Localization in the cytoplasmic membrane and a topological model.

1993 ◽  
Vol 268 (8) ◽  
pp. 5417-5424
Author(s):  
J.P. Bourdineaud ◽  
D. Heierli ◽  
M. Gamper ◽  
H.J. Verhoogt ◽  
A.J. Driessen ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Cytoplasmic Membrane ◽  
Topological Model

scholarly journals A topological model for chromatin transcription and a role for nucleosome linkers

FEBS Letters ◽  
1983 ◽  
Vol 162 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Sergei A. Grigoryev ◽  
Igor A. Krasheninnikov
Keyword(s):  
Topological Model

Selection of the optimal hydraulic drive for the press

2021 ◽  
pp. 50-60
Author(s):  
A.A. Antsifirov ◽  
V.A. Krivoshein
Keyword(s):  
Technological Process ◽  
Electric Motor ◽  
Software Package ◽  
Hydraulic Drive ◽  
Hydraulic Press ◽  
Topological Model ◽  
Electric Motors ◽  
Engine Operation ◽  
The Press ◽  
Selection Of

The research presented in the article is devoted to the selection of the electric motor of the hydraulic press drive with a nominal force of 5MN. The article presents the main characteristics and the description of the press operation using the means of mechanization of the technological process of pressure treatment. Using the Deform-3D software package, the process of stamping the crosspiece of the ZIL-130 cardan shaft was simulated. Based on the presented hydraulic scheme of the press, its topological model was formed in the PA-9 software package. The deformation force obtained in the course of modeling the technological process of stamping was used in the topological model of the press. Using a tabular cyclogram, the sequence of actuation of the end switches and hydraulic distributors during the stamping process is shown. In the article, two variants of engine operation were analyzed. Based on the results of the conducted research, it is necessary to focus on the second version of the 55 kW engine, the operation of which will provide the required characteristics of the hydraulic drive of the press, which in turn will allow for technological stamping operations. The simulation tools allow providing estimated information when selecting the necessary tools to ensure the optimal characteristics of hydraulic press drives. The article considered the variation of electric motors that differ from each other in nominal characteristics, with constant characteristics of the pump. For more accurate estimates of energy savings during the operation of the hydraulic drive, it is necessary to vary the characteristics of the pump in the simulation, and the best option is to form an experiment planning matrix when combining the characteristics of the electric motor and the hydraulic pump. This approach ultimately allows forming a function for which one can select a hydraulic drive from existing brands of electric motors and hydraulic pumps for presses of the corresponding range of nominal force.

Model Categories

2009 ◽  
pp. 65-138
Author(s):  
Paul G. Goerss ◽  
John F. Jardine
Keyword(s):  
Model Categories
Sign in / Sign up

Export Citation Format

Share Document