Results 31 to 40 of about 3,314,720 (268)

T-Spline Based Unifying Registration Procedure for Free-Form Surface Workpieces in Intelligent CMM

Applied Sciences, 2017
With the development of the modern manufacturing industry, the free-form surface is widely used in various fields, and the automatic detection of a free-form surface is an important function of future intelligent three-coordinate measuring machines (CMMs)
Zhenhua Han, Yingmo Wang, Xinhui Ma, Shugui Liu, Xiaodong Zhang, Guoxiong Zhang   +5 more
doaj   +1 more source

Proximity Effect Aware Detailed Placement in Electron Beam Lithography

MATEC Web of Conferences, 2018
Proximity effect is one of the most tremendous consequences that produces unacceptable exposures during electron beam lithography (EBL), and thus distorting the layout pattern. In this paper, we propose the first work which considers the proximity effect
Chen Yuhang, Huang Zhipeng, Chen Xiongfeng, Chen Jianli, Zhu Wenxing   +4 more
doaj   +1 more source

Shields-Harary numbers of graphs with respect to continuous concave cost functions

International Journal of Mathematics and Mathematical Sciences, 2003
The Shields-Harary numbers are a class of graph parameters that measure a certain kind of robustness of a graph, thought of as a network of fortified reservoirs, with reference to a given cost function.
John Holliday, Peter Johnson
doaj   +1 more source

Dynamic behaviors of a discrete Lotka-Volterra competitive system with the effect of toxic substances and feedback controls

Advances in Difference Equations, 2017
By noting the fact that the intrinsic growth rate are not positive everywhere, we revisit Lotka-Volterra competitive system with the effect of toxic substances and feedback controls.
Zhanshuai Miao, Fengde Chen, Jiamin Liu, Liqiong Pu   +3 more
doaj   +1 more source

S-shaped connected component of positive solutions for second-order discrete Neumann boundary value problems

Open Mathematics, 2020
By using the bifurcation method, we study the existence of an S-shaped connected component in the set of positive solutions for discrete second-order Neumann boundary value problem.
Miao Liangying, Liu Jing, He Zhiqian
doaj   +1 more source

Integrable discretizations for the short wave model of the Camassa-Holm equation [PDF]

, 2010
The link between the short wave model of the Camassa-Holm equation (SCHE) and bilinear equations of the two-dimensional Toda lattice (2DTL) is clarified. The parametric form of N-cuspon solution of the SCHE in Casorati determinant is then given. Based on
Feng, Bao-Feng, Maruno, Ken-ichi, Ohta, Yasuhiro   +2 more
core   +1 more source

SS-discrete modules [PDF]

Filomat, 2020
In this paper, we define (strongly) ss-discrete, semi-ss-discrete and quasi-ss-discrete modules as a strongly notion of (strongly) discrete, semi-discrete and quasi-discrete modules with the help of ss-supplements in [3]. We examined the basic properties of these modules and included characterization of strongly ss-discrete modules over ...
Turkmen, Burcu Nisanci, Eryilmaz, Figen
openaire   +1 more source

Discrete Routh Reduction [PDF]

, 2006
This paper develops the theory of abelian Routh reduction for discrete mechanical systems and applies it to the variational integration of mechanical systems with abelian symmetry.
Cendra H, Desbrun M Hirani A Leok M Marsden J, Hairer E, Hairer E, Hairer E, Jalnapurkar S, Jerrold E Marsden, Lee T Y Leok M McClamroch N H, Leok M, Leok M, Leok M Marsden J Weinstein A, Marrero J C Martín de Diego D Martínez E, Marsden J, Marsden J, Marsden J, Marsden J, Marsden J, Marsden J, Marsden J E, Marsden J E, Marsden J E Scheurle J Wendlandt J Kirchgässner K Mahrenholtz O Mennicken R, Matthew West, Melvin Leok, Ortega J-P, Patrick G, Prussing J, Sameer M Jalnapurkar, Sanyal A Shen J McClamroch H N, Weinstein A   +28 more
core   +3 more sources

Discrete Formulation for the dynamics of rods deforming in space

, 2019
We describe the main ingredients needed to create, from the smooth lagrangian density, a variational principle for discrete motions of a discrete rod, with corresponding conserved Noether currents. We describe all geometrical objects in terms of elements
Ana Casimiro, Antman S. S., César Rodrigo, Ehresmann C., Hairer E., Kobilarov M., Saunders D. J.   +6 more
core   +1 more source

Discrete Lagrangian field theories on Lie groupoids [PDF]

, 2006
We present a geometric framework for discrete classical field theories, where fields are modeled as "morphisms" defined on a discrete grid in the base space, and take values in a Lie groupoid.
Ascher, Baez, Bobenko, Bobenko, Bobenko, Bridges, Bridges, Bridges, Bridges, Cariñena, Castrillón López, Castrillón López, Castrillón López, Crainic, Frans Cantrijn, Gotay, Gupta, Günther, Higgins, Joris Vankerschaver, Kobayashi, Leimkuhler, Mackenzie, Marrero, Marsden, Marsden, Martínez, Martínez, Martínez, Moser, Munteanu, Saunders, Saunders, Van Est, Weinstein, Wise   +35 more
core   +5 more sources