Results 21 to 30 of about 303 (162)
Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020 Risk measures based on the trading option prices in the market are forward‐looking, such as VIX. We propose a new method combining distorted lognormal distribution with interpolation to price options accurately and then estimate tail risk. Our method can price the option of any strikes between the maximum and the minimum value of strikes in the real ...
Yan Chen +3 more
wiley +1 more source
Ionic-state-resolved electron–electron correlation in strong-field double ionization
Results in Physics, 2021 In this paper, we theoretically investigate the nonsequential double ionization (NSDI) process of Ne induced by 400 nm linearly polarized laser field with a intensity above the recollision threshold using the S-matrix theory.
Chan Li +5 more
doaj +1 more source
Integration of Bayesian Networks with GIS for Dynamic Avalanche Hazard Assessment: NSDI Perspective
Doğal Afetler ve Çevre Dergisi, 2018 Natural hazard assessments are core to risk definition and early warning systems and play a fundamental role in the prevention of major damages. Traditional hazard identification methods are static.
Ipek Yilmaz, Derya Ozturk
doaj +1 more source
Pulse length effects in long wavelength driven non-sequential double ionization
New Journal of Physics, 2023 We present a joint experimental and theoretical study of non-sequential double ionization (NSDI) in argon driven by a 3100 nm laser source. The correlated photoelectron momentum distribution (PMD) shows a strong dependence on the pulse duration, and the ...
H Jiang +10 more
doaj +1 more source
CROWDSOURCED MAPPING – LETTING AMATEURS INTO THE TEMPLE? [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013 The rise of crowdsourced mapping data is well documented and attempts to integrate such information within existing or potential NSDIs [National Spatial Data Infrastructures] are increasingly being examined.
M. McCullagh, M. Jackson
doaj +1 more source
On the Optimal Spatial Design for Groundwater Level Monitoring Networks
Water Resources Research, Volume 55, Issue 11, Page 9454-9473, November 2019., 2019 Abstract Effective groundwater monitoring networks are important, as systematic data collected at observation wells provide a crucial understanding of the dynamics of hydrogeological systems as well as the basis for many other applications. This study investigates the influence of six groundwater level monitoring network (GLMN) sampling designs (random,
M. Ohmer, T. Liesch, N. Goldscheider
wiley +1 more source
A Review of Pakistan’s National Spatial Data Infrastructure Using Multiple Assessment Frameworks
ISPRS International Journal of Geo-InformationEfforts to establish Pakistan’s National Spatial Data Infrastructure (NSDI) have been underway for the past 15 years, and therefore it is necessary to gauge the current progress to channelize efforts into areas that need improvement.
Munir Ahmad +4 more
doaj +1 more source
ONTOLOGY BASED QUALITY EVALUATION FOR SPATIAL DATA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 Many institutions will be providing data to the National Spatial Data Infrastructure (NSDI). Current technical background of the NSDI is based on syntactic web services. It is expected that this will be replaced by semantic web services.
C. Yılmaz, Ç. Cömert
doaj +1 more source
Can Landsat data detect variations in snow cover within habitats of arctic ungulates?
Wildlife Biology, Volume 18, Issue 1, Page 75-87, March 2012., 2012 With climate change, modelling has suggested that increased inaccessibility of forage through snow may endanger some populations of arctic ungulates; however, contemporaneous data on snow‐cover conditions, other ecological factors and ungulate responses are lacking at the landscape scale.
Andrew I. Maher +2 more
wiley +1 more source
Priložnosti za uporabo prostovoljnih geografskih informacij v okviru nacionalne prostorske podatkovne infrastrukture ( = Opportunities for using the volunteered geographic information within the national spatial data infrastructure) [PDF]
Geodetski Vestnik, 2019 New sources of geospatial data and information have recently become available in the form of user-generated web content. The integration of these sources, often termed Volunteered Geographic Information (VGI) or Crowdsourced Geographic Information (CGI),
Mihaela Triglav Čekada, Anka Lisec
doaj +1 more source