Wind power generation is characterized by its variability and uncertainty in the wind speed. Due to the irregular nature of wind power production, accurate prediction of wind speed is essential for its application in optimum power flow, transmission congestion, economic load dispatch and electricity market clearing prices. Wind speed of a wind farm is affected by conditions of the environment i...

the purpose of this study was to estimate relative potential hazards to birds and bats from wind developments in texas. we compiled lists of rare, threatened, or endangered species, along with their respective ranges in texas. using a geographic information system (gis), we calculated a potential hazard index (phi) for 31 bird and ten bat species based upon the percentage of known or observed s...

Roughness length is a critical parameter for estimation of wind conditions, and it is therefore also relevant for the estimation of human thermal conditions in urban areas. The high density of buildings in urban areas causes large changes in land coverage, thereby increasing surface roughness. This influence atmospheric flow and also leads to a reduction in urban air ventilation, thus increasin...

Organic producers, particularly dairy and sweet corn growers, fear losing their organic certification if genetically engineered (GE) proteins are found in their corn (Zea mays L.). Although corn pollen grains are among the largest and heaviest of wind-pollinated plants (Smith, 1990), transport is possible. Corn is a monoecious plant with male and female flowers borne on separate parts of the pl...

The scope of this paper is to forecast wind speed. Wind speed, temperature, wind direction, relative humidity, precipitation of water content and air pressure are the main factors make the wind speed forecasting as a complex problem and neural network performance is mainly influenced by proper hidden layer neuron units. This paper proposes new criteria for appropriate hidden layer neuron unit’s...

Abstract Based on the measurement principle of psychrometer and experimental data, influence wind speed humidity is analyzed, uncertainty measured by evaluated GUM method. The research results show that under condition high temperature humidity, relative not sensitive to speed. When 90%RH air 85°C, difference calculated using different coefficients 0.03% RH. With decrease dry-bulb gradually inc...

Weather critically influences fire behaviour. Antecedent conditions control availability and moisture content of the fuels, and thus influence the likelihood of ignition. Once a fire is established, its behaviour is influenced by temperature, humidity and wind. Of these, fire behaviour is perhaps most sensitive to changes in wind speed, as evidenced by the sensitivity of the McArthur Forest Fir...

Hand, foot, and mouth disease (HFMD) causes characteristic blisters and sores mainly in infants and children, and has been monitored in South Korea through sentinel surveillance since 2009. We described the patterns of HFMD occurrence and analyzed the effect of climatic factors on national HFMD incidence. Weekly clinically diagnosed HFMD case rates (per 1,000 outpatients) in sentinel sites and ...

background: the objective of this study was to measure the total suspended particulate (tsp), pm 10 and pm 2.5 air particulates in the selected intercity bus stations located in the central square of hamadan, to review the distribution concentration of the air particulates content and to evaluate its possible health risk to the people who spent little time of their daily time in those places. m...