With the development of carbon electricity, achieving a low-carbon economy has become prevailing and inevitable trend. Improving expansion generation planning is critical for emission mitigation low- economy. In this paper, two-layer approach considering uncertainty renewable energy at multiple time scales proposed. First, sequences in are generated based on Copula function probability distribu...

We describe a multi-faceted effort to demonstrate the practical implementation of stochastic unit commitment at RTO scale. The inputs for the scheduling engine consist of multiple hourly trajectories of load and variable generation availability together with probabilities that accurately describe their likelihood of occurrence given information available on the day ahead. Preliminary computatio...

OBJECTIVES Ambient temperature has been reported to play a role in the occurrence of spontaneous intracerebral haemorrhage (ICH). This study aimed to investigate the relation between ambient temperature of onset time and ICH and the effect of hourly temperature within 72 h before ICH. DESIGN This is a cross-sectional case-only study and a retrospective analysis of a prospective database. SE...

Among the numerous air pollutants, the strongest proof for adverse health effects has been reported for particulate matter (PM). The aim of this study was the exploration of short-term associations of air pollution with mortalities due to cardiovascular diseases (CVD) in Tehran, Iran, based on hospital and census data from 2007 to 2013. This descriptive and analytical research was conducted in ...

A time and frequency-domain analysis is made of the effects of averaging and sampling methods used for constructing magnetic-observatory hourly data values. Using 1min data as a proxy for continuous, geomagnetic variation, we construct synthetic hourly values of two standard types: instantaneous “spot” measurements and simple 1-h “boxcar” averages. We compare these average-sample types with oth...

Abstract. One of the main factors contributing to wind power forecast inaccuracies is occurrence large changes in output over a short amount time, also called “ramp events”. In this paper, we assess behaviour and causality 1183 ramp events at farm site located Victoria (southeast Australia). We address relative importance primary engineering meteorological processes inducing ramps through an au...

Decomposed solar radiation models are commonly used to separate direct and diffuse irradiance from global irradiance. However, most of these designed process hourly data, which may not be sufficient capture the rapid changes in that occur within a shorter timescale. To address this issue, we examined performance existing decomposition at different temporal resolutions ranging 1 min h. We found ...