Results 61 to 70 of about 14,047 (249)

A parallel Navier–Stokes solver using spectral discretisation in time

open access: yes, 2016
We investigate the performance of a multi-harmonic space–time approach to solve time-periodic flow problems. It employs a Fourier spectral discretisation of the time domain.
Obrist, Dominik   +2 more
core   +1 more source

A Coupled AquaCrop–Richards Model for Improved Crop Yield Prediction Through Physically Based Soil Water Dynamics

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT Crop modelling is essential for agricultural water management but often relies on simplified water balance routines that limit representation of soil moisture dynamics. To address this limitation, we developed a coupled model that integrates the 1‐D Richards equation, solved using a finite difference method into the FAO AquaCrop.
Krishna Panthi   +2 more
wiley   +1 more source

Correlation maximisation-based discretisation for supervised classification

open access: yes, 2012
This paper proposes a novel supervised discretisation algorithm based on Correlation Maximisation (CM) using Multiple Correspondence Analysis (MCA). MCA is an effective technique to capture the correlation between multiple variables.
Shyu, Mei-Ling, Zhu, Qiusha, Lin, Lin
core   +1 more source

Discretisation-invariant swaps and higher-moment risk premia

open access: yes, 2016
This thesis introduces a general framework for model-free discretisation-invariant swaps. In the first main chapter a novel design for swap contracts is developed where the realised leg is modified such that the fair value is independent of the ...
Johannes Rauch (16138271)
core   +1 more source

Sailing Route Planning Method Considering Various User Categories

open access: yesPolish Maritime Research, 2020
The article describes the methodology related to determining the multi-criteria routes for sailing ships. Details of sea area discretisation and discretisation of the description of the sailing vessel properties and manoeuvring principles are shown. User
Życzkowski Marcin
doaj   +1 more source

A Zonal‐Meridional Projection Method for Quantifying Global Land‐Ocean Moisture Transport

open access: yesInternational Journal of Climatology, EarlyView.
We present a physically consistent and computationally efficient method to quantify global coastal moisture transport by projecting vertically integrated moisture flux onto signed land–ocean boundary segments. The signed projection naturally distinguishes ocean‐to‐land inflow and land‐to‐ocean outflow without explicit directional classification ...
Chong Zhang   +2 more
wiley   +1 more source

Taming Discretised PDDL+ through Multiple Discretisations (Extended Abstract)

open access: yesProceedings of the International Symposium on Combinatorial Search
The PDDL+ formalism allows the use of planning techniques in applications that require the ability to perform hybrid discrete-continuous reasoning. PDDL+ problems are notoriously challenging to tackle, and to reason upon them a well-established approach is discretisation.
Matteo Cardellini   +4 more
openaire   +2 more sources

Tokenised discretisation in iris verification

open access: yesIEICE Electronics Express, 2005
A novel authentication approach which based on the integration of tokenised pseudo-random numbers and the user's iris biometrics, to generate a user-specific binary bitstring via an iterated inner-product mechanism is proposed. The proposed method, S-Iris encoding, protects against iris fabrication as it can only contribute to the authentication ...
Chin, Chong Siew   +2 more
openaire   +4 more sources

Discretising Keyfitz' entropy for studies of actuarial senescence and comparative demography

open access: yesMethods in Ecology and Evolution, 2023
Keyfitz' entropy is a widely used metric to quantify the shape of the survivorship curve of populations, from plants to animals and microbes. Keyfitz' entropy values 1 correspond to species with a decreasing mortality rate with age (negative senescence),
Charlotte deVries   +2 more
doaj   +1 more source

Influence of Relative Permeability Formulations on Hysteretic Seepage in Infinite Slopes

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The paper investigates the impact of two classical relative permeability formulations, one expressed in terms of pore water pressure and the other in terms of degree of saturation, on the predicted seepage in an infinite slope subjected to surface pore pressure variations.
Diana Bianchi   +3 more
wiley   +1 more source

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