Results 21 to 30 of about 69,913 (309)

Nonlinear geostrophic adjustment in the presence of a boundary [PDF]

open access: yesJournal of Fluid Mechanics, 2002
The process of nonlinear geostrophic adjustment in the presence of a boundary (i.e. in a half-plane bounded by a rigid wall) is examined in the framework of a rotating shallow water model, using an asymptotic multiple-time-scale theory based on the assumed smallness of the Rossby number ε.
Reznik, G. M., Grimshaw, R.
openaire   +1 more source

Optimization of SLAM Graph Based on Optimization Levenberg-Marquardt Method

open access: yesJournal of Harbin University of Science and Technology, 2021
Aimed at the present situation of the visualSimultaneous Localization and Mapping technology of complex nonlinear optimization method of process,optimization of slow speed and low accuracy of optimization shortcomings,in the wide application of nonlinear
DAI Tian-hong, LI Zhi-cheng
doaj   +1 more source

Adjustable robust optimization with nonlinear recourses [PDF]

open access: yes4OR, 2023
Over the last century, mathematical optimization has become a prominent tool for decision making. Its systematic application in practical fields such as economics, logistics or defense led to the development of algorithmic methods with ever increasing efficiency.
openaire   +2 more sources

New Nonlinear Approaches for the Adjustment and Updating of a SAM [PDF]

open access: yesEconomics of Planning, 2003
Many structural relationships should be taken into account in any reasonable adjustment and updating process. These structural relationships are mainly represented by ratios of different types, such as technical coefficients or the proportion of the cell value in relation to its row or column total.
Casiano Manrique de Lara Peñate   +1 more
openaire   +3 more sources

Nonlinear quantile regression to describe the dry matter accumulation of garlic plants [PDF]

open access: yesCiência Rural, 2020
: The objective of this study was to adjust nonlinear quantile regression models for the study of dry matter accumulation in garlic plants over time, and to compare them to models fitted by the ordinary least squares method. The total dry matter of nine
Guilherme Alves Puiatti   +7 more
doaj   +1 more source

Nonlinear Rossby adjustment in a channel [PDF]

open access: yesJournal of Fluid Mechanics, 1999
The Rossby adjustment problem for a homogeneous fluid in a channel is solved for large values of the initial depth discontinuity. We begin by analysing the classical dam break problem in which the depth on one side of the discontinuity is zero. An approximate solution for this case can be constructed by assuming semigeostrophic dynamics and using ...
Helfrich, K. R.   +2 more
openaire   +2 more sources

Nonlinearity Valuation Adjustment [PDF]

open access: yes, 2016
We develop a consistent, arbitrage-free framework for valuing derivative trades with collateral, counterparty credit risk, and funding costs. Credit, debit, liquidity, and funding valuation adjustments (CVA, DVA, LVA, and FVA) are simply introduced as modifications to the payout cash flows of the trade position.
Damiano Brigo   +3 more
openaire   +1 more source

On weighted total least squares adjustment for solving the nonlinear problems

open access: yesJournal of Geodetic Science, 2014
In the classical geodetic data processing, a non- linear problem always can be converted to a linear least squares adjustment. However, the errors in Jacob matrix are often not being considered when using the least square method to estimate the optimal ...
Hu C., Chen Y., Peng Y.
doaj   +1 more source

Nonlinear short-run adjustments between house and stock prices in emerging Asian regions [PDF]

open access: yesPanoeconomicus, 2018
This study uses the powerful nonparametric cointegration test to examine whether nonlinear cointegration exists between prices of used houses and corresponding stock markets in China and the four Asian Tigers.
Fang Hao   +2 more
doaj   +1 more source

Is Seasonal Adjustment a Linear or Nonlinear Data-Filtering Process? [PDF]

open access: yesJournal of Business & Economic Statistics, 1996
We investigate whether seasonal-adjustment procedures are, at least approximately, linear data transformations. This question was initially addressed by Young and is important with respect to many issues including estimation of regression models with seasonally adjusted data.
Ghysels, E.   +2 more
openaire   +2 more sources

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