A5078459042- Wind and Air Flow Studies
- Wind Energy Research and Development
- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Hydrology and Drought Analysis
- Aerodynamics and Fluid Dynamics Research
- Precipitation Measurement and Analysis
- Biofield Effects and Biophysics
- Electromagnetic Fields and Biological Effects
- Solar Radiation and Photovoltaics
- Climate variability and models
- Air Quality Monitoring and Forecasting
- Atmospheric aerosols and clouds
- Geography and Environmental Studies
- Probabilistic and Robust Engineering Design
- Plant Water Relations and Carbon Dynamics
- Environmental and biological studies
- Energy Load and Power Forecasting
- Magnetic and Electromagnetic Effects
- Structural Health Monitoring Techniques
- Microbial Inactivation Methods
- Statistical Distribution Estimation and Applications
- Impact of Light on Environment and Health
- Healthcare during COVID-19 Pandemic
- Agricultural Engineering and Mechanization
University of Žilina
2012-2024
Universidade Federal de Mato Grosso do Sul
2022
Universidade Federal Rural do Rio de Janeiro
2022
Universidade Federal de Alagoas
2022
Adam Mickiewicz University in Poznań
2022
Centro Universitário da Cidade
2022
When modeling the wind speed in some location probability distributions are proving to be a useful tool. In this study we consider four different distributions: 2-parameter Weibull, 3-parameter Gamma and Lognormal. All of them applied on data recorded at airport Dolný Hričov. Parameters density estimated by maximum likelihood method. order select best fitting distribution there used χ2−test, Kolmogorov-Smirnov test, Akaike information criterion, Bayesian coefficient determination root mean...
In this paper we study the performance of least square method, weighted maximum likelihood method and moments for estimating Weibull distribution parameters. The comparison is based on Monte Carlo simulation, methods are compared in terms root mean error sample size n . shows that provide similar estimates. We recommend to estimate parameters due its good properties. For very small sizes method.
In the paper, we statistically analysed data on average hourly wind speed obtained from meteorological station Poprad (located at Poprad-Tatry airport, Prešov region, Northern Slovakia) for period 2005–2021. High altitude and rough mountainous terrain influence weather conditions considerably are a source of occasional risks. Finding an appropriate distribution modelling is therefore important to determine profile this particular location. addition commonly used two- three-parameter Weibull...
Abstract This study aims at fitting polynomial models based on latitude, longitude and altitude coordinates to estimate the monthly annual mean rainfall in Mato Grosso do Sul state, Midwest region of Brazil. Furthermore, its target is verify whether hydrologically similar regions provide statistical improvement regression fit for estimation. To create 32 rain gauge stations, there were used least 15 years long data records analysis with a percentage gaps most 10%. Generally, present suitable...
This present study aims to evaluate the stratospheric ozone that was continuously measured during 2016 over Campo Grande, capital of South Mato Grosso state, Brazil. To determine best-adjusted distribution describing (O3) co-generation data in 15 functions were used while modeling numerical results. Five sets used: entire year, spring (September December), summer (December March, high solar radiation data), autumn (March June), and winter (June September, low data) seasonal variation...
In this paper we study new distribution called transmuted Weibull distribution. Some properties of are described. The usefulness the for modelling data is illustrated using real set.
This article is focused on the in vitro experimental verification of basic necessary conditions for valid interpretation an ion parametric resonance prediction model biological reaction externally applied, extremely low-frequency magnetic field. Experiments are performed organism Saccharomyces cerevisiae strain BY4741, with intention to target calcium ions, which already produced interesting preliminary results within authors’ previous works, confirming specific field settings being...
Rapid economic transformations, the urbanization process, and intensification of industrialization have resulted in a notable increase ozone (O3) emissions, particularly Northeast Central-West regions Brazil. To monitor tropospheric column (TCO) over these regions, Aura Ozone Monitoring Instrument (OMI) was utilized for long-term, large-scale dynamic monitoring from 2008 to 2016. Seasonal variations O3 concentration revealed that spring exhibited higher concentrations compared winter....
The increasing evidence regarding biological effects of exposure to an extremely low frequency magnetic field is utmost interest not only the scientific community, but also legislative bodies and public. However, research in this full controversial inconsistent results, originated from a lack widely acceptable physical mechanisms that could sufficiently describe principle such field’s action. This experimental study addresses points possible sources ambiguities via investigation ion...
The 2-parameter Weibull distribution was used to analyse the wind speed at high-altitude mountain site Chopok, situated in central part of Nízke Tatry mountains Slovakia. Analysed data has been collected over 11 year period (2005–2015) and measured under standard conditions – height 10 m above ground using calibrated anemometers. Suitability assessed coefficient determination root mean square error. From results it is concluded that adequately describe observed can be with acceptable...
In this paper we study the performance of least square method and weighted for estimating Weibull distribution parameters. engineering practice these methods are commonly used due to their simplicity. The estimates parameters can be calculated easily by closed-form formula. We consider three estimators cumulative function weight factor proposed Bergman (1986). compared in terms root mean error sample size. comparison is based on Monte Carlo simulation. shows that improves accuracy estimation
In this paper the wind speed data from Meteorological observatory Bratislava-Mlynska dolina were statistically analyzed. The analyzed based on Weibull and Rayleigh distribution. distribution parameters estimated using maximum likelihood method. both distributions compared for their performance coefficient of determination root mean square error. results indicate that better can be obtained by
This research examines particulate matter with a diameter of 2.5 micrometers (PM2.5) and ozone (O3) variation across the climatic mesoregions Alagoas. Mean PM2.5 O3 concentrations three were as follows: East (5.91; 44.22 μg.m−3), Hinterland (6.90; 44.18 Arid (7.03; 44.23 μg.m−3). Spatial temporal variations observed, highest in northwest (NW) east (E), influenced by local sources, weather, transportation. Differences between rainy dry years noted, attributed to biomass burning dust particle...
<title>Abstract</title> This study analyzes the Total Ozone Column (TCO) over six cities in state of Alagoas, Brazil, with objective evaluating their spatial and temporal homogeneity identifying seasonal annual patterns period from 2008 to 2016. OCT is an important indicator for monitoring ozone layer its implications public health, due role filtering ultraviolet radiation. For analysis, data provided by satellite measurements were used, variances was verified means Bartlett test a...