Results 41 to 50 of about 498,057 (167)

Species traits shape the relationship between local and regional species abundance distributions

Ecosphere, 2019
The species abundance distribution (SAD) depicts the relative abundance of species within a community, which is a key concept in ecology. Here, we test whether SADs are more likely to either follow a lognormal‐like or follow a logseries‐like distribution
Murilo Dantas de Miranda, Luís Borda‐de‐Água, Henrique Miguel Pereira, Thomas Merckx   +3 more
doaj   +1 more source

Electron cross talk and asymmetric electron distributions near the Earth's bowshock [PDF]

Annales Geophysicae, 2012
Electron distributions in the magnetosheath display a number of far from equilibrium features. It has been suggested that one factor influencing these distributions may be the large distances separating locations at which electrons with different ...
J. J. Mitchell, S. J. Schwartz, U. Auster   +2 more
doaj   +1 more source

Variability of the local φMS values over the gate area of MOS devices

Journal of Telecommunications and Information Technology, 2005
The local value distributions of the effective contact potential difference (ECPD or the φMS factor) over the gate area of Al-SiO2-Si structures were investigated for the first time.
Henryk M. Przewłock, Andrzej Kudła, Danuta Brzezińska, Hisham Z. Massoud   +3 more
doaj   +1 more source

Geometry of Control-Affine Systems

Symmetry, Integrability and Geometry: Methods and Applications, 2009
Motivated by control-affine systems in optimal control theory, we introduce the notion of a point-affine distribution on a manifold X – i.e., an affine distribution F together with a distinguished vector field contained in F.
Jeanne N. Clelland, Christopher G. Moseley, George R. Wilkens   +2 more
doaj   +1 more source

The effect of local sources on aerosol particle number size distribution, concentrations and fluxes in Helsinki, Finland

Tellus: Series B, Chemical and Physical Meteorology, 2013
Three years of aerosol particle number concentrations (PNCs), size distributions and vertical particle fluxes measured at the semi-urban SMEAR III station in Helsinki, Finland, were studied.
Giovanna Ripamonti, Leena Järvi, Bjarke Mølgaard, Tareq Hussein, Annika Nordbo, Kaarle Hämeri   +5 more
doaj   +1 more source

Local regression distribution estimators [PDF]

Journal of Econometrics
This paper investigates the large sample properties of local regression distribution estimators, which include a class of boundary adaptive density estimators as a prime example. First, we establish a pointwise Gaussian large sample distributional approximation in a unified way, allowing for both boundary and interior evaluation points simultaneously ...
Cattaneo, Matias D, Jansson, Michael, Ma, Xinwei   +2 more
openaire   +4 more sources

Numerical analysis of temperature and current distributions in large-size intrinsic Josephson junctions with self-heating

AIP Advances, 2020
In this study, we focused on temperature and current distributions in voltage-state large-size intrinsic Josephson junction (IJJ) mesas with a self-heating effect.
Dai Oikawa, Haruki Mitarai, Hiromi Tanaka, Keita Tsuzuki, Yuki Kumagai, Toko Sugiura, Hiroya Andoh, Takehiko Tsukamoto   +7 more
doaj   +1 more source

Locally atomic upper locally distributive lattice

Mathematische Annalen, 1967
It is well known that the meet-closed subsets of a partially ordered set P, ordered by set inclusion, form a compactly generated, dually compactly generated, distributive lattice, which we denote by LM(P). Moreover, LM(P ) is atomic if and only if P satisfies the Descending Chain Condition. In this paper we define a closure relation D--, D on LM(P ) in
openaire   +1 more source

ADVANCED STATISTICAL ANALYSIS OF LOCAL BUBBLE SIZE DISTRIBUTIONS IN 2D GAS FLUIDIZED BEDS

Chemical Engineering Transactions, 2009
Not available.
A. Busciglio, G. Micale, L. Rizzuti, G. Vella, A. Lombardo   +4 more
doaj   +1 more source

Local environmental factors drive distributions of ecologically-contrasting mosquito species (Diptera: Culicidae)

Scientific Reports
Mosquitoes are important vectors of disease pathogens and multiple species are undergoing geographical shifts due to global changes. As such, there is a growing need for accurate distribution predictions.
Roel M. Wouters, Wouter Beukema, Maarten Schrama, Koos Biesmeijer, Marieta A. H. Braks, Pepijn Helleman, Francis Schaffner, Joey van Slobbe, Arjan Stroo, Jordy G. van der Beek   +9 more
doaj   +1 more source