Results 21 to 30 of about 3,383,900 (322)
Integrability of planar polynomial differential systems through linear differential equations [PDF]
, 2005 In this work, we consider rational ordinary differential equations dy/dx = Q(x,y)/P(x,y), with Q(x,y) and P(x,y) coprime polynomials with real coefficients.
Giacomini, Héctor +2 more
core +6 more sources
Families of noncongruent numbers [PDF]
, 2002 Let E_k denote the elliptic curve defined by y^2 = x(x^2 - k^2). We consider the curves with k = pl, p = l = 1 mod 8 primes, and show that the density of rank-0 curves among them is at least 1/2 by explicitly constructing nontrivial elements in the 2 ...
Lemmermeyer, Franz
core +1 more source
A Numerical Investigation to Determine the p–y Curves of Laterally Loaded Piles
Mathematics, 2021 This paper focuses on a numerical approach to finding the p–y curves for laterally loaded piles. The Drucker–Prager plastic model is employed and implemented within a finite element MATLAB code.
Kexin Yin +2 more
doaj +1 more source
On monodromy representation of period integrals associated to an algebraic curve with bi-degree (2,2) [PDF]
, 2017 We study a problem related to Kontsevich's homological mirror symmetry conjecture for the case of a generic curve $\cal Y$ with bi-degree (2,2) in a product of projective lines ${\Bbb P}^{1} \times {\Bbb P}^{1}$.
Tanabé, Susumu
core +3 more sources
Active P-Y Curves for Rigid Walls Supporting Granular Soil
, 2023 Abstract In the performance-based design of structures with basement floors, there is interest in quantifying the relationship between the lateral earth pressure and the wall displacement using p-y curves. This paper focuses on studying the development of active earth pressure behind rigid walls in the context of p-y curves.
Imad Elchiti, George Saad, Shadi Najjar
openaire +1 more source
Curve crossing in linear potential grids: the quasidegeneracy approximation [PDF]
, 2000 The quasidegeneracy approximation [V. A. Yurovsky, A. Ben-Reuven, P. S. Julienne, and Y. B. Band, J. Phys. B {\bf 32}, 1845 (1999)] is used here to evaluate transition amplitudes for the problem of curve crossing in linear potential grids involving two ...
A. Ben-Reuven +38 more
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On the algebraic invariant curves of plane polynomial differential systems
, 2000 We consider a plane polynomial vector field $P(x,y)dx+Q(x,y)dy$ of degree $m>1$. To each algebraic invariant curve of such a field we associate a compact Riemann surface with the meromorphic differential $\omega=dx/P=dy/Q$. The asymptotic estimate of the
Alexei Tsygvintsev +12 more
core +4 more sources
Media Komunikasi Teknik Sipil, 2015 For a certain structure, lateral loads are more dominant than vertical loads. A foundation with a lateral load is due to overturning force relying on good contact between the pile and the soil.
Utari Wessy Andriani, Ita Suhartatik
doaj +1 more source
Investigation of p-y Behaviors of a Cyclic Laterally Loaded Pile in Saturated Silty Sand
Advances in Civil Engineering, 2022 This study aimed to evaluate the p-y behavior of pile foundations installed in saturated silty sand subject to cyclic lateral loading. Model piles were installed in saturated silty sand with three relative densities (40%, 70%, 90%), and lateral loads of ...
Sung-Ha Baek, Joonyoung Kim
doaj +1 more source
Rock and Soil Mechanics, 2022 As a direct retaining structure in the process of foundation pit excavation, the internal force and deformation of pile under horizontal load have great influence on the safety and economy of foundation pit engineering. In order to calculate the internal
ZHU Yan-peng +5 more
doaj +1 more source