Results 21 to 30 of about 1,058,762 (288)

Quasispecies on Class-Dependent Fitness Landscapes [PDF]

open access: yesBulletin of Mathematical Biology, 2016
We study Eigen's quasispecies model in the asymptotic regime where the length of the genotypes goes to infinity and the mutation probability goes to 0. We give several explicit formulas for the stationary solutions of the limiting system of differential equations.
Cerf, Raphaël, Dalmau, Joseba
openaire   +4 more sources

Synthesis and Application of Amin-modified Fe3O4@MCM-41 Core-shell Magnetic Mesoporous for Effective Removal of pb2+ ions from Aqueous Solutions and Optimization with Response Surface Methodology [PDF]

open access: yesJournal of Water and Environmental Nanotechnology, 2018
In this study, a selective, fast and novel magnetic mesoporous silica sorbent Fe3O4@MCM-41-NH2, was synthesized, functionalized and has been used for the removal of Pb+2 ions from aqueous solution.
Kamal Alizadeh   +2 more
doaj   +1 more source

Extracting Source Parameters from Gaussian Fits to Two-Particle Correlations [PDF]

open access: yes, 1995
Using a quadratic saddle-point approximation, we show how information about a particle-emitting source can be extracted from gaussian fits to two-particle correlation data.
Chapman, Scott   +2 more
core   +2 more sources

OMI total bromine monoxide (OMBRO) data product: algorithm, retrieval and measurement comparisons [PDF]

open access: yesAtmospheric Measurement Techniques, 2019
This paper presents the retrieval algorithm for the operational Ozone Monitoring Instrument (OMI) total bromine monoxide (BrO) data product (OMBRO) developed at the Smithsonian Astrophysical Observatory (SAO) and shows comparisons with correlative ...
R. M. Suleiman   +6 more
doaj   +1 more source

F^ω-injectors of finite groups [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
Only finite groups and classes of finite groups are considered. $\frak F$-injectors (B. Fischer, W. Gaschutz, B. Hartley, 1967) and $\frak F$-projectors (W.
Sorokina, Marina M., Novikova, Diana G.
doaj   +1 more source

Neutral temperature and atmospheric water vapour retrieval from spectral fitting of auroral and airglow emissions [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2018
We have developed a spectral fitting method to retrieve upper atmospheric parameters at multiple altitudes simultaneously during times of aurora, allowing us to measure neutral temperatures and column densities of water vapour.
J. M. Chadney, D. K. Whiter
doaj   +1 more source

Il paesaggio del futuro. Temi di responsabilità

open access: yesRi-vista: Ricerche per la Progettazione del Paesaggio, 2015
Landscape is a process. Under a strictly functional profile, landscape is a translation and exchanging process between material, energy and information. Landscape is also an evolution and fitting process, being a dissipating and fitting system. Landscape
Valerio Romani
doaj   +1 more source

Combining Hybrid Approach Redefinition-Multiclass Imbalance (HAR-MI) and Hybrid Sampling in Handling Multi-Class Imbalance and Overlapping

open access: yesJOIV: International Journal on Informatics Visualization, 2021
The class imbalance problem in the multi-class dataset is more challenging to manage than the problem in the two classes and this problem is more complicated if accompanied by overlapping.
Hartono Hartono, Erianto Ongko
doaj   +1 more source

An IBBCEAS system for atmospheric measurements of glyoxal and methylglyoxal in the presence of high NO2 concentrations [PDF]

open access: yesAtmospheric Measurement Techniques, 2019
A system based on incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) has been developed for simultaneous measurement of nitrogen dioxide (NO2), glyoxal (GLY), and methylglyoxal (MGLY).
J. Liu   +17 more
doaj   +1 more source

Evaluate the impact of power-law scattering amplitude fitting on dual-polarization radar data assimilation – summertime cases study [PDF]

open access: yesAtmospheric Measurement Techniques
Different configurations within the observation operator cause dual-polarization radar parameters to exhibit various characteristics, which affect the structure of background error covariance as well as the results of data assimilation. Through real case
K.-S. Chung   +6 more
doaj   +1 more source

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