A CO2 water to water heat pump system was used to investigate the effects of throttle valve opening and water flow rates at higher charge capacity (149% of the full charge). It was observed that the throttle opening affects the gas cooler pressure (and inlet temperature) where the less the opening the higher the pressure. Although the increase in gas cooler pressure was improving the gas cooler heat output and therefore the system efficiencies, there is an optimum pressure which when exceeded, t...

Atmospheric Sciences  Natural Geography  Geomorphology  Environmental Sciences 

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Iron enrichment hypothesis have been tested on many occasions by adding dissolved iron into the seawater. Though Mediterranean Sea never depleted with iron it is one of the most oligotrophic water that exists on earth. It’s shown that oceanic surface chlorophyll levels do in fact regulated by the wet desert dust deposition, independent of the nutritional load of the receiving body. The in cloud alteration of desert dust matrix and its biological content is in fact responsible from the reaction m...

Atmospheric Sciences  Environmental Sciences 

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Frequency of showers and floods show an increasing trend in recent year in the world. Role of climate changing on frequency of natural hazardous depends on topographic structure, vegetation cover, land use- land surface classification and urbanization. This paper covers analyses of spatial and temporal variations of air temperature and precipitation at four selected stations (Bah？ek？y, Florya, G？ztepe and ？ile) in European and Asian parts of Istanbul. Mean air temperature variations show an incr...

Atmospheric Sciences 

Doi:10.21324/dacd.75393

Research was performed to investigate the concentration of arsenic in muscle and liver of fish species from freshwater, Barbus luteus, Aspius vorax, Cyprinion macrostomus in Karoon Rivers and saltwater, Liza dussumieri, Liza klunzingeri, Liza macrolepis, Scomberomorus commerson, Otolithes ruber, Scomberomorus guttatus, in Persian Gulf, Iran. Arsenic levels in muscles of seaport fish were high in comparision with riverine fish. Arsenic levels in muscle of Scomberomorus guttatus in Hendijan Seapor...

Atmospheric Sciences  Geochemistry  Geochemistry  Plant Science  Soil Science  Biochemistry  Biodiversity  Environmental Sciences  Environmental Sciences