Results 21 to 30 of about 1,652,945 (232)

Different mechanisms for daytime, nighttime, and compound heatwaves in southern China

open access: yesWeather and Climate Extremes, 2022
Heatwaves often cause immense stress on human society and the natural environment. While heatwaves can be classified into daytime, nighttime, and compound daytime-nighttime types, the specific processes associated with different heatwave types remain ...
Ming Luo, Ngar-Cheung Lau, Zhen Liu
doaj   +1 more source

Irrelevant and independent natural extension for sets of desirable gambles

open access: yesJournal of Artificial Intelligence Research, 2012
The results in this paper add useful tools to the theory of sets of desirable gambles, a growing toolbox for reasoning with partial probability assessments. We investigate how to combine a number of marginal coherent sets of desirable gambles into a joint set using the properties of epistemic irrelevance and independence.
Cooman, Gert de   +1 more
openaire   +4 more sources

Logarithmic Yangians in WZW models [PDF]

open access: yes, 1996
A new action of the Yangians in the WZW models is displayed. Its structure is generic and level independent. This Yangian is the natural extension at the conformal point of the one unravelled in massive theories with current algebras.
Bernard, D., Maassarani, Z., Mathieu, P.
core   +4 more sources

Lingkungan sebagai Media Pembelajaran dan Pengaruhnya terhadap Kompetensi Penyuluh Pertanian

open access: yesJurnal Pendidikan dan Kebudayaan, 2011
This study aimed to analyze the intensity of utilization of the environment as a medium of learning and its influence on the competency of agricultural extension agents.
Oos M Anwas
doaj   +1 more source

A Component Prediction Method for Flue Gas of Natural Gas Combustion Based on Nonlinear Partial Least Squares Method

open access: yesThe Scientific World Journal, 2014
Quantitative analysis for the flue gas of natural gas-fired generator is significant for energy conservation and emission reduction. The traditional partial least squares method may not deal with the nonlinear problems effectively.
Hui Cao   +5 more
doaj   +1 more source

The Bundle of Tensor Densities and Its Covariant Derivatives

open access: yesAxioms
We construct the smooth vector bundle of tensor densities of arbitrary weight in a coordinate-independent way. We prove the general existence of a globally smooth tensor density field, as well as the existence of a globally smooth metric density for a ...
Joan Grandes Umbert, Tom Mestdag
doaj   +1 more source

SyPEAH: The WebAPP System for Protection and Education to Archaeological Heritage in the Parco Archeologico del Colosseo

open access: yesGeosciences, 2021
Archaeological sites are affected by changes due to a natural deterioration process over time. If not prevented, this may compromise the functionality of the cultural property, and in turn become pathological and result in degradation. Monitoring through
Irma Della Giovampaola
doaj   +1 more source

Algebraic quantum field theory on spacetimes with timelike boundary [PDF]

open access: yes, 2018
We analyze quantum field theories on spacetimes M with timelike boundary from a model independent perspective. We construct an adjunction which describes a universal extension to the whole spacetime M of theories defined only on the interior intM.
Benini, Marco   +2 more
core   +5 more sources

Entropic Fluctuations in Statistical Mechanics I. Classical Dynamical Systems [PDF]

open access: yes, 2010
Within the abstract framework of dynamical system theory we describe a general approach to the Transient (or Evans-Searles) and Steady State (or Gallavotti-Cohen) Fluctuation Theorems of non-equilibrium statistical mechanics.
Baladi V   +47 more
core   +9 more sources

Determinants of solar technology adoption in rural households: The case of Belesa districts, Amhara region of Ethiopia

open access: yesCogent Economics & Finance, 2022
The adoption of modern energy such as solar energy has been recognized as, an important way to reduce carbon emissions and enrich the energy supply of rural households in Ethiopia.
Yasin Ahmed   +2 more
doaj   +1 more source

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