Št. zadetkov: 282
Izvirni znanstveni članek
Oznake:
polycyclic aromatic-hydrocarbons;positive matrix factorization;mass-spectrometry;volatility measurements;
Recent field studies have found large discrepancies in the measured vs. modeled SOA mass loadings in both urban and regional polluted atmospheres. The reasons for these large differences are unclear. Here we revisit a case study of SOA formation in Mexico City described by Volkamer et al. (2006), du ...
Leto:
2009
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
atmospheric aerosol;atmospheric chemistry;volatile organic compounds;secondary organic aerosols;
The atmospheric chemistry of volatile organic compounds (VOCs) in urban areas results in the formation of 'photochemical smog', including secondary organic aerosol (SOA). State-of-the-art SOA models parameterize the results of simulation chamber experiments that bracket the conditions found in the p ...
Leto:
2006
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
aerosol mass-spectrometer;atmospheric aerosol;atmospheric chemistry;atmospheric physics;
An Aerodyne Aerosol Mass Spectrometer (AMS) was deployed at the CENICA Supersite, during the Mexico City Metropolitan Area field study (MCMA-2003) from 31 March-4 May 2003 to investigate particle concentrations, sources, and processes. The AMS provides real time information on mass concentration and ...
Leto:
2006
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
atmospheric aerosol;secondary organic aerosols;primary organic aerosols;aerodyne aerosol mass spectrometer;
Organic aerosol (OA) data acquired by the Aerosol Mass Spectrometer (AMS) in 37 field campaigns were deconvolved into hydrocarbon-like OA (HOA) and several types of oxygenated OA (OOA) components. HOA has been linked to primary combustion emissions (mainly from fossil fuel) and other primary sources ...
Leto:
2007
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
AMS;PAH;Mexico City;
We report the quantification of ambient particle-bound polycyclic aromatic hydrocarbons (PAHs) for the first time using a real-time aerosol mass spectrometer. These measurements were carried out during the Mexico City Metropolitan Area field study (MCMA-2003) that took place from March 29 to May 4, ...
Leto:
2007
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
secondary organic aerosol;source apportionment;aerodyne aerosol mass spectrometer;global field measurements;laboratory experiments;
Organic aerosol (OA) particles affect climate forcing and human health, but their sources and evolution remain poorly characterized. We present a unifying model framework describing the atmospheric evolution of OA that is constrained by high–time-resolution measurements of its composition, volatilit ...
Leto:
2009
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
fractional Schrödinger equations;critical Sobolev exponent;Ambrosetti-Rabinowitz condition;concentration compactness principle;
This paper is concerned with the following fractional Schrödinger equations involving critical exponents: ▫$$(-\Delta)^\alpha u + V(x)u = k(x)f(u) + \lambda|u|^{2_\alpha^\ast-2}u \quad \text{in} \; \mathbb{R}^N,$$▫ where ▫$(-\Delta)^\alpha$▫ is the fractional Laplacian operator with ▫$\alpha \in (0, ...
Leto:
2016
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
kooperacija;dilema zapornika;mnogo-delčna optimizacija;naključne strategije;cooperation;prisoner's dilemma;particle swarm optimization;stochastic strategies;
We study the evolution of cooperation among selfish individuals in the stochastic strategy spatial prisoner's dilemma game. We equip players with the particle swarm optimization technique, and find that it may lead to highly cooperative states even if the temptations to defect are strong. The concep ...
Leto:
2011
Vir:
Fakulteta za naravoslovje in matematiko (UM FNM)
Izvirni znanstveni članek
Oznake:
evolucijske igre;dilema zapornika;koevolucija;kompleksne mreže;prijateljstvo;evolutionary games;prisoner's dilemma;coevolution;complex networks;friendship;
We study the evolution of cooperation in the spatial prisoner's dilemma game where players are allowed to establish new interactions with others. By employing a simple coevolutionary rule entailing only two crucial parameters, we find that different selection criteria for the new interaction partner ...
Leto:
2011
Vir:
Fakulteta za naravoslovje in matematiko (UM FNM)
Izvirni znanstveni članek
Oznake:
atmospheric refractivity;COSMIC;GPS radio occultation;radiosonde;temporal and spatial distribution;
Atmosferska refrakcija je odvisna od temperature, tlaka in vodne pare. Iz GNSS ocenjena refrakcija ima dovolj dobro vertikalno ločljivost in točnost, da jo lahko vključimo v numerične modele napovedi vremena ter uporabimo v meteoroloških in klimatskih raziskavah. V študiji smo ovrednotili razlike me ...
Leto:
2020
Vir:
Fakulteta za gradbeništvo in geodezijo (UL FGG)