Results 51 to 60 of about 2,125 (287)

Numerical Implementation of Meshless Methods for Beam Problems

open access: yesArchives of Civil Engineering, 2012
For solving a partial different equation by a numerical method, a possible alternative may be either to use a mesh method or a meshless method. A flexible computational procedure for solving 1D linear elastic beam problems is presented that currently ...
Rosca V. E., Leitāo V. M. A.
doaj   +1 more source

On the sensitivity of implementations of a least-squares collocation method for linear higher-index differential-algebraic equations

open access: yes, 2022
The present paper continues our investigation of an implementation of a least-squares collocation method for higher-index differential-algebraic equations.
Hanke, Michael,
core   +1 more source

Lithium Diisopropylamide‐Mediated Ring‐Opening of Tetrahydrofuran in the Synthesis of Polyhydroxylated Indolizidines

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Chiral tri‐ and pentahydroxy spirocyclopentane‐indolizidines were synthesized using lithium diisopropylamide “LDA” promoted diallylation and tetrahydrofuran “THF” ring‐opening in a one‐pot procedure as a key step. The sequence leading to the targeted hydroxy‐spiroindolizidines was achieved by cis‐dihydroxylation followed by reduction of the enamine and
Paula Fraňová   +6 more
wiley   +1 more source

Improving Daily Precipitation Estimates by Merging Satellite and Reanalysis Data in Northeast China

open access: yesRemote Sensing
Precipitation plays a key control in the water, energy, and carbon cycles, and it is also an important driving force for land surface modeling. This study provides an optimal least squares merging approach to merge precipitation data sets from multiple ...
Gaohong Yin   +3 more
doaj   +1 more source

Topography-Assisted downward Continuation of Airborne Gravity: An Application for Geoid Determination in Taiwan

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2010
We investigated the Fourier transform-based downward continuation (DWC) of airborne gravity anomalies around Taiwan assisted by topographic information. The topographic data are from the latest collections of elevations and ocean depths.
Yu-Shen Hsiao Cheinway Hwang
doaj   +1 more source

Predicting EU Emissions Allowance Prices Using Macroeconomic Indicators and Hybrid AI Models

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT Predicting carbon allowance prices has grown more crucial in relation to carbon market regulation, financial strategy, and environmental policy development. This study examines a hybrid forecasting system that combines deep learning with ensemble machine learning models to forecast the price fluctuations of EU Emissions Allowance (EUAs) within
Saptarshi Ganguly   +2 more
wiley   +1 more source

Combined SAI-SHAO prediction of Earth Orientation Parameters since 2012 till 2017

open access: yesGeodesy and Geodynamics, 2018
As the participants of Earth Orientation Parameters Combination of Prediction Pilot Project (EOPC PPP), Sternberg Astronomical Institute of Moscow State University (SAI) and Shanghai Astronomical Observatory (SHAO) have accumulated ∼1800 days of Earth ...
Leonid Zotov   +3 more
doaj   +1 more source

Collocation and mass matrix in least-squares isogeometric analysis

open access: yesComputer-Aided Design
In this paper, we conduct a systematic numerical analysis of the spectral properties of the collocation and mass matrices in the isogeometric least-squares collocation method (IGA-L), for the approximation of the Poisson problem with homogeneous Dirichlet boundary conditions.
Gengchen Li, Hongwei Lin
openaire   +2 more sources

Towards climate‐conscious corporate restructuring: A comparative exploration of English and Bhutanese legal frameworks

open access: yesInternational Insolvency Review, EarlyView.
Abstract This paper conducts a comparative legal analysis of corporate restructuring frameworks in England and Bhutan, examining their capacity to integrate climate variability considerations and promote sustainable business practices. It discusses the procedural mechanisms for restructuring financially distressed enterprises available under the law of
Eugenio Vaccari, Migmar Lham
wiley   +1 more source

Enhanced geoid modelling in local geodetic networks: Comparative analysis of Least Squares Collocation techniques

open access: yesNova Geodesia
The geoid is an equipotential surface of the Earth’s gravity field that closely approximates mean sea level in a least-squares sense. Meanwhile, this study aims to enhance local geoid modeling by comparing the Stationary (SLSC) and Non-Stationary Least ...
Apollos A. TUKKA   +2 more
doaj   +1 more source

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