Literatura científica selecionada sobre o tema "DIMENSION SHEET"

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Artigos de revistas sobre o assunto "DIMENSION SHEET"

1

Burton, D. A., and R. W. Tucker. "Geometry and dynamics of vortex sheets in 3 dimension." Theoretical and Applied Mechanics, no. 28-29 (2002): 55–76. http://dx.doi.org/10.2298/tam0229055b.

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We consider the properties and dynamics of vortex sheets from a geometrical, coordinate-free, perspective. Distribution-valued forms (de Rham currents) are used to represent the fluid velocity and vorticity due to the vortex sheets. The smooth velocities on either side of the sheets are solved in terms of the sheet strengths using the language of double forms. The classical results regarding the continuity of the sheet normal component of the velocity and the conservation of vorticity are exposed in this setting. The formalism is then applied to the case of the self-induced velocity of an isol
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2

Safronov, Evgeniy, and Andrey Nosko. "Analysis of Linear Dimension Accuracy of Sheet Metal Bending." MATEC Web of Conferences 346 (2021): 01007. http://dx.doi.org/10.1051/matecconf/202134601007.

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Working on the design of the products obtained by the V-bending, the engineer uses the nominal thickness of the material. In this case, the problem is to evaluate the accuracy of the linear dimensions of the resulting products due to deviations in the thickness of the material and the manufacturing technology of the steel sheets. Article presents analysis of linear dimension accuracy for V-bending for the metal cold-rolled and hot-rolled sheets with thickness 1.0…8.0 mm and width from 1000…1500mm. Proposed method is based on the calculation of difference between nominal flat length and flat le
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3

Hwang, Y.-M., and D.-C. Chen. "Finite element simulations on void closure behaviour inside the sheet during sheet rolling processes." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 216, no. 9 (2002): 1227–37. http://dx.doi.org/10.1243/095440502760291781.

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The purpose of this paper is to explore the deformation mechanism of voids and stress-strain distributions around internal voids inside the sheet during sheet rolling processes. The plastic deformation and flow pattern of sheets during sheet rolling were simulated by the finite element method. The influences of various rolling conditions, such as the thickness reduction, the dimension of the internal void, friction factor, cross-sectional area of the void, etc., on the dimension of the void at the exit are discussed. The critical thickness reductions, over which the void would close completely
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4

He, Song, Heyun Liu, Yuan Zhang, Haili Liu, and Wang Chen. "Investigation of the Interface Effects and Frosting Mechanism of Nanoporous Alumina Sheets." Processes 11, no. 7 (2023): 2019. http://dx.doi.org/10.3390/pr11072019.

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Nanoporous alumina sheets can inhibit the growth of the frost layer in a low-temperature environment, which has been widely used in air-conditioning heat exchangers. In this study, nanoporous alumina sheets with pore diameters of 30 nm, 100 nm, 200 nm, 300 nm, and 400 nm were prepared by using the anodic oxidation method with the conventional polished aluminum sheet as the reference. A comprehensive and in-depth analysis of the frosting mechanism has been proposed based on the contact angle, specific surface area, and fractal dimension. It was found that compared with the polished aluminum she
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5

Wang, Xiao Xiong, Jing Liu, Jing Tao Han, and Qian Liu. "Numerical Simulation of Polyurethane Pad Punching Process." Advanced Materials Research 941-944 (June 2014): 1817–21. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.1817.

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A numerical simulation was conducted to investigate the effect of the punching clearance, the thickness of sheet, and the hardness of polyurethane pad on the process of punching by finite element program ABAQUS which based on shear failure criterion and arbitrary Lagrangian-Eulerian adaptive meshing method. And the collapse height dimension and width dimension tendency of the sheet under different control parameters was analyzed after punching process according to this simulation result. The results show that the collapse height dimension and width dimension decreased with the increase of the
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6

Napolitano, F., G. De Rosa, G. Caporale, A. Carlucci, F. Grasso, and E. Monteleone. "Bridging consumer perception and on-farm assessment of animal welfare." Animal Welfare 16, no. 2 (2007): 249–53. http://dx.doi.org/10.1017/s0962728600031456.

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AbstractThe present study aims to assess the relationship between consumer perception and on-farm assessment of animal welfare performed using the Animal Needs Index 35L (ANI). Two tie-stall, 2 straw yard and 2 cubicle farms were scored by trained assessors using the ANI and filmed to produce six 3.5 min videos. Each of them contained 4 clips: barn overall view, feeding, milking and individual animals. Ten untrained observers were asked to elicit terms describing how they perceived the observed farming systems to affect animal welfare using Free Choice Profiling (FCP). Data from FCP were subje
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7

BRAUNE, S. "GEOMETRICAL PROPERTIES OF CONFORMAL FIELD THEORIES COUPLED TO TWO-DIMENSIONAL QUANTUM GRAVITY." International Journal of Modern Physics A 11, no. 11 (1996): 1913–28. http://dx.doi.org/10.1142/s0217751x96000997.

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In this work we discuss an approach due to F. David to the geometry of world sheets of noncritical strings in quasiclassical approximation. The gravitational dressed conformal dimension is related to the scaling behavior of the two-point function with respect to a distance variable. We show how this approach can reproduce the standard gravitational dressing in the next order of perturbation theory. Furthermore, we try to find this scaling dimension by studying the functional integral. With the same technique we calculate the intrinsic Hausdorff dimension of a world sheet.
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8

BEZEMER, DIRK J. "THE ECONOMY AS A COMPLEX SYSTEM: THE BALANCE SHEET DIMENSION." Advances in Complex Systems 15, supp02 (2012): 1250047. http://dx.doi.org/10.1142/s0219525912500476.

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Given the economy's complex behavior and sudden transitions as evidenced in the 2007–2008 crisis, agent-based models are widely considered a promising alternative to current macroeconomic research dominated by DSGE models. Their failure is commonly interpreted as a failure to incorporate heterogeneous interacting agents. This paper explains that complex behavior and sudden transitions also arise from the economy's financial structure as reflected in its balance sheets, not just from heterogeneous interacting agents. It introduces "flow-of-funds" or "accounting" models, which were pre eminent i
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9

Yang, Xiaoyong, and Tan Jin. "Fractal calculation method of friction parameters: Surface morphology and load of galvanized sheet." Open Physics 19, no. 1 (2021): 375–82. http://dx.doi.org/10.1515/phys-2021-0042.

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Abstract In the forming process of galvanized sheet, the friction between the die and the blank often causes the zinc coating of galvanized sheet to peel off, scratch, and crack. The aim of this study is to evaluate and calculate the fractal characteristics of the surface morphology of galvanized sheet and the effect of pressure on the interfacial friction behavior. Two steel plates, GA and GI, produced by Shanghai Baosteel Company, were used as materials to conduct tribological experiments, measure the surface profile and three-dimensional shape of the galvanized sheet, and calculate the frac
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10

ELLIS, JOHN, N. E. MAVROMATOS, and D. V. NANOPOULOS. "WORLD SHEET FORMULATION OF M THEORY." International Journal of Modern Physics A 13, no. 29 (1998): 5093–112. http://dx.doi.org/10.1142/s0217751x98002377.

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We first review the interpretation of world sheet defects as D branes described by a critical theory in 11 dimensions, that we interpret as M theory. We then show that D-brane recoil induces dynamically an anti-de Sitter (AdS) space–time background, with criticality restored by a twelfth timelike dimension described by a Liouville field. Local physics in the bulk of this AdS11 may be described by an Osp (1|32, R) ⊗ Osp (1|32, R) topological gauge theory (TGT), with nonlocal boundary states in doubleton representations. We draw analogies with structures previously exhibited in two-dimensional b
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