Results 31 to 40 of about 7,710,593 (222)

Evaluación de tierras para reforestación (Horche, Guadalajara) mediante un índice de Productividad Agraria

open access: yesEstudios Geográficos, 2002
[es] La Unión Europea está promoviendo la reforestación en aquellos países, como España, con áreas vulnerables a la degradación y a la desertificación. El propósito de este artículo es delimitar y definir, mediante un método de Evaluación de Tierras, las
C. Hontoria Fernández   +2 more
doaj   +1 more source

Logical–Mathematical Foundations of a Graph Query Framework for Relational Learning

open access: yesMathematics, 2023
Relational learning has attracted much attention from the machine learning community in recent years, and many real-world applications have been successfully formulated as relational learning problems.
Pedro Almagro-Blanco   +2 more
doaj   +1 more source

Statistical inference for generalized Ornstein-Uhlenbeck processes

open access: yes, 2015
In this paper, we consider the problem of statistical inference for generalized Ornstein-Uhlenbeck processes of the type \[ X_{t} = e^{-\xi_{t}} \left( X_{0} + \int_{0}^{t} e^{\xi_{u-}} d u \right), \] where \(\xi_s\) is a L{\'e}vy process.
Belomestny, Denis, Panov, Vladimir
core   +1 more source

The critical end point of QCD [PDF]

open access: yes, 2005
We investigate the critical end point of QCD with two flavours of light dynamical quarks at finite lattice cutoff a=1/4T using a Taylor expansion of the baryon number susceptibility.
Gavai, R. V., Gupta, Sourendu
core   +2 more sources

Codefmap APP: A seismic deformation simulation application based on Android system

open access: yes地球与行星物理论评, 2023
If coseismic deformation of the earthquake region can be obtained in a short time, it is important for timely evaluate the disaster and cooperate with the development of earthquake relief work.
Ruisheng Ni, Wenbin Xu
doaj   +1 more source

Identification of microRNAs and their targets associated with fruit-bagging and subsequent sunlight re-exposure in the ‘Granny Smith’ apple exocarp using high-throughput sequencing

open access: yesFrontiers in Plant Science, 2016
Bagged fruits of green apple cultivar ‘Granny Smith’ have been found to turn cardinal red after debagging during fruit-ripening in the Loess Plateau region of China.
Dong eQu   +15 more
doaj   +1 more source

Comments on the Deformed W_N Algebra

open access: yes, 2001
We obtain an explicit expression for the defining relation of the deformed W_N algebra, DWA(^sl_N)_{q,t}. Using this expression we can show that, in the q-->1 limit, DWA(^sl_N)_{q,t} with t=e^{-2\pi i/N}q^{(k+N)/N} reduces to the sl_N-version of the ...
Frenkel E., SATORU ODAKE
core   +1 more source

A framework for model-assisted T x E x M exploration in maize [PDF]

open access: green, 2022
Jennifer L. Hsiao   +4 more
openalex   +1 more source

Mount makes liquid nitrogen-cooled gamma ray detector portable [PDF]

open access: yes, 1966
Liquid nitrogen-cooled gamma ray detector system is made portable by attaching the detector to a fixture which provides a good thermal conductive path between the detector and the liquid nitrogen in a dewar flask and a low heat leak path between the ...
Fessler, T. E.
core   +1 more source

Electro-optic modulator for infrared laser using gallium arsenide crystal [PDF]

open access: yes, 1968
Gallium arsenide electro-optic modulator used for infrared lasers has a mica quarter-wave plate and two calcite polarizers to amplitude or phase modulate an infrared laser light source in the wavelength range from 1 to 3 microns. The large single crystal
Walsh, T. E.
core   +1 more source

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