Results 31 to 40 of about 2,657,494 (181)

Geometric foundations for scaling-rotation statistics on symmetric positive definite matrices: minimal smooth scaling-rotation curves in low dimensions

, 2017
We investigate a geometric computational framework, called the "scaling-rotation framework", on ${\rm Sym}^+(p)$, the set of $p \times p$ symmetric positive-definite (SPD) matrices. The purpose of our study is to lay geometric foundations for statistical
Groisser, David, Jung, Sungkyu, Schwartzman, Armin   +2 more
core   +1 more source

Numerical Study on the Lateral Load Response of Offshore Monopile Foundations in Clay: Effect of Slenderness Ratio

Applied Sciences
To meet growing energy demands, offshore wind turbines (OWTs) with higher energy outputs are being developed, presenting increased challenges for their foundation design.
Ali Khezri, Hongbae Park, Daeyong Lee
doaj   +1 more source

Cyclic p-y Curves of Monopiles in Dense Dry Sand Using Centrifuge Model Tests

Applied Sciences, 2019
In this study, centrifuge model tests were used to examine the lateral behavior of a monopile embedded in dry sand through cyclic lateral loading tests.
Myungjae Lee, Kyung-Tae Bae, Il-Wha Lee, Mintaek Yoo   +3 more
doaj   +1 more source

Integral points on generic fibers

, 2008
Let P(x,y) be a rational polynomial and k in Q be a generic value. If the curve (P(x,y)=k) is irreducible and admits an infinite number of points whose coordinates are integers then there exist algebraic automorphisms that send P(x,y) to the polynomial x
Bodin, Arnaud
core   +1 more source

Numerical Analysis of Critical Embedment Depth of Offshore Monopile Foundations in Clay

Journal of Marine Science and Engineering
The design of offshore monopile foundations typically follows an iterative process aimed at optimizing key geometric parameters—namely, pile diameter, wall thickness, and embedded length.
Ali Khezri, Hongbae Park, Daeyong Lee
doaj   +1 more source

Analytic curves in algebraic varieties over number fields

, 2007
We establish algebraicity criteria for formal germs of curves in algebraic varieties over number fields and apply them to derive a rationality criterion for formal germs of functions, which extends the classical rationality theorems of Borel-Dwork and P\'
A Franchetta, B Dwork, C P Ramanujam, D G Cantor, D Harbater, D Mumford, D V Chudnovsky, D V Chudnovsky, E Kani, G Eisenstein, G Pólya, H Hironaka, H Hironaka, H Matsumura, H Randriambololona, J Fresnel, J.-B. Bost, J.-B. Bost, J.-B. Bost, J.-B. Bost, J.-P. Serre, L Bădescu, L Moret-Bailly, L Moret-Bailly, M Raynaud, M van der Put, P Graftieaux, P Graftieaux, R Hartshorne, R Hartshorne, R Rumely, R S Rumely, S Bosch, S Bosch, S Bosch, V G Berkovich, W Gubler, Y Amice, Y André, Y Ihara, Yu. I. Manin, É Borel   +41 more
core   +5 more sources

Determination of p-y curves for offshore piles based on in-situ soil investigations

MATEC Web of Conferences, 2018
Offshore piles are subjected to complex loads with considerable lateral component. The pile-soil response to lateral loads can be described with the p-y method.
Międlarz Kamila, Bałachowski Lech
doaj   +1 more source

P-Y Curve Correction of Shallow Seabed Formation Containing Hydrate

Energies, 2023
With the continuous growth in global energy demand, the exploration and development of hydrates has been the focus of increasing attention, and the accurate evaluation of the mechanical properties of hydrate layers has become particularly important.
Haoyu Diao, Honghai Fan, Rongyi Ji, Bangchen Wu, Yuguang Ye, Yuhan Liu, Fei Zhou, Yixiang Yang, Zhi Yan   +8 more
doaj   +1 more source

A new p-y model for soil-pile interaction analyses in cohesionless soils under monotonic loading

Soils and Foundations
The most widely used analysis method for the laterally loaded pile problem is the Winkler spring approach. Although researchers have proposed nonlinear formulations for the p-y curves, the contribution of the soil nonlinearity has not been thoroughly ...
Ozan Alver, E. Ece Eseller-Bayat
doaj   +1 more source

Numerical Analysis of Laterally Loaded Piles Affected by Bedrock Depth

Advances in Civil Engineering, 2018
This study investigates the lateral behavior of pile foundations socketed into bedrocks using 3D finite difference analysis. The lateral load-displacement curve, pile deflection, and bending moment distribution were obtained for different bedrock depths ...
Younggyun Choi, Janghwan Kim, Heejung Youn   +2 more
doaj   +1 more source