Sfoglia per Autore "Papanastasiou, D. K."
Items 1-9 di 9
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ASSESSMENT OF A TYPICAL GREEK SHEEP BARN BASED ON POTENTIAL HEAT-STRESS OF DAIRY EWES
Papanastasiou, D. K.; Bartzanas, T.; Panagakis, P.; Kittas, C. (2014)This article studied the potential seasonal heat-stress of dairy ewes housed in a typical naturally ventilated sheep barn located close to the east coast of central Greece. Heat stress was assessed using the Temperature ... -
Classification of potential sheep heat-stress levels according to the prevailing meteorological conditions
Papanastasiou, D. K.; Bartzanas, T.; Kittas, C. (2015)Many researchers have found that physiology, welfare, health, and productivity of ruminants are significantly affected when they are exposed to heat-stress conditions. In such cases, heat-stress may also cause a reduction ... -
Development of models to assess potential sheep heat-stress during heat waves
Papanastasiou, D. K.; Zhang, G.; Bartzanas, T.; Panagakis, P.; Norton, T.; Kittas, C. (2013)It is well documented that heat-stress burdens sheep welfare and productivity. It is expected that peak heat-stress levels are observed when high temperatures prevail, i.e. during heat waves. However, continuous measurements ... -
Estimation of Ozone Trend in Central Greece, Based on Meteorologically Adjusted Time Series
Papanastasiou, D. K.; Melas, D.; Bartzanas, T.; Kittas, C. (2012)Data referring to an approximately 8-year period (1999-2007) are analyzed in order to estimate the trend of the daily maximum hourly value of ozone concentration at the east coast of central Greece, where the summer ... -
IMPACT OF URBAN HEAT ISLAND DEVELOPMENT ON BUILDINGS' ENERGY CONSUMPTION
Papanastasiou, D. K.; Fidaros, D.; Bartzanas, T.; Kittas, C. (2013)The urban heat island (UHI) is one of the major problems that urban areas are experiencing worldwide, as it is related to various environmental and health effects. One of them is its direct impact on buildings energy demand. ... -
Maximum urban heat island intensity in a medium-sized coastal Mediterranean city
Papanastasiou, D. K.; Kittas, C. (2012)This paper studies the maximum intensity of the urban heat island (UHI) that develops in Volos urban area, a medium-sized coastal city in central Greece. The maximum temperature difference between the city center and a ... -
Monitoring particulate matter levels and climate conditions in a Greek sheep and goat livestock building
Papanastasiou, D. K.; Fidaros, D.; Bartzanas, T.; Kittas, C. (2011)Atmospheric pollutants from livestock operations influence air quality inside livestock buildings and the air exhausted from them. The climate that prevails inside the building affects human and animal health and welfare, ... -
Numerical and experimental assessment of the airflow field and ventilation rates in a naturally ventilated free cubical cattle house with large openings
Bartzanas, T.; Zhang, G.; Norton, T.; Wu, W.; Papanastasiou, D. K.; Kittas, C. (2013)An efficient natural ventilation system in dairy cattle buildings is essential both for animal welfare and for environmental issues since the naturally ventilated livestock buildings are a major source of greenhouse gas ... -
Preliminary findings on seasonal heat stress of sheep
Papanastasiou, D. K.; Bartzanas, T.; Panagakis, P.; Kittas, C. (2012)This paper studies the heat stress conditions imposed onto sheep housed in a naturally ventilated sheep barn during the four seasons of a year. The barn is located near the east coast of central Greece. Heat stress is ...