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634 Aktuelle Fachpublikationen zum Thema temperature

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IJERPH, Vol. 12, Pages 2622-2638: Effects of Weather and Heliophysical Conditions on Emergency Ambulance Calls for Elevated Arterial Blood Pressure

27.02.2015 | Vencloviene, Jone ; Babarskiene, Ruta M.; Dobozinskas, Paulius ; Sakalyte, Gintare ; Lopatiene, Kristina ; Mikelioni ..., International Journal of Environmental Research and Public Health, 2015

We hypothesized that weather and space weather conditions were associated with the exacerbation of essential hypertension. The study was conducted during 2009–2010 in the city of Kaunas, Lithuania. We analyzed 13,475 cards from emergency ambulance calls (EACs), in which the conditions for the ...

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IJERPH, Vol. 12, Pages 2543-2556: Salmonella and Eggs: From Production to Plate

26.02.2015 | Whiley, Harriet ; Ross, Kirstin, International Journal of Environmental Research and Public Health, 2015

Salmonella contamination of eggs and egg shells has been identified as a public health concern worldwide. A recent shift in consumer preferences has impacted on the egg industry, with a push for cage-free egg production methods. There has also been an increased desire from consumers for raw and ...

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Investigation on biodiesel production from cotton seed oil using microwave irradiated transesterfication process

17.02.2015 | K. Thirugnanasambandham, V. Sivakumar, Environmental Progress, 2015

In this study, cotton seed oil was investigated under different operating conditions such as ethanol: oil molar ratio, temperature, mixing rate, time, and microwave power to produce the biodiesel. Five factors with three levels Box‐Behnken response surface design (BBD) was used to optimize and ...

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Study on coadsorption of SO2, NO, and CO2 over copper‐supported activated carbon sorbent in different operating conditions

17.02.2015 | Honghong Yi, Yanran Zuo, Haiyan Liu, Xiaolong Tang, Shunzheng Zhao, Bowen Zhang, Zhixiang Wang, Fengyu Gao, Environmental Progress, 2015

Copper‐supported activated carbon (Cu‐SAC) was studied for the simultaneous removal of SO2, NO, and CO2 in different operating conditions. The effects of Cu loading, adsorption temperature, O2 concentration, and relative humidity (RH) were studied. The experimental results showed that Cu‐SAC ...

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Maximizing furfural concentration from wheat straw and Eucalyptus globulus by nonisothermal autohydrolysis

17.02.2015 | M.T. García‐Domínguez, J.C. García‐Domínguez, F. López, C.M. de Diego, M.J. Díaz, Environmental Progress, 2015

The autohydrolysis process as a method for selective extraction of hemicelluloses and conversion to furfural was proposed for lignocellulosic raw materials. Samples of wheat straw (WS) and Eucalyptus globulus (EG) were subjected to nonisothermal autohydrolysis, defined by temperature 180–240°C. ...

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Experimental study on the oxidation reaction parameters of different carbon structure particles

17.02.2015 | Yang Zhao, Zhong Wang, Shuai Liu, Rui‐Na Li, Ming‐Di Li, Environmental Progress, 2015

This study explores the effect of the difference in the carbon structure of particles on their reactivity towards O2. Particles with three types of carbon structures were captured in the exhaust of a diesel engine fueled with blends of diesel with 0, 5, and 15 vol % methanol (designated here as ...

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A review on vermicomposting of organic wastes

17.02.2015 | Usman Ali, Nida Sajid, Azeem Khalid, Luqman Riaz, Muhammad Muaz Rabbani, Jabir Hussain Syed, Riffat Naseem Malik, Environmental Progress, 2015

Generation of the huge amount of solid waste around the globe is a major ecological and technical problem. Vermicomposting may be the viable option to handle solid waste in an environmentally friendly way. This review provides a general overview of viability of vermicomposting processes as an ...

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Antimony‐meditated efficient conversion of carbohydrates to 5‐hydroxymethylfurfural in a simple THF‐H2O binary solvent

17.02.2015 | Xinli Tong, Linhao Yu, Guangxia Nie, Zongmao Li, Jinbiao Liu, Song Xue, Environmental Progress, 2015

The renewable furan‐based platform chemical, 5‐hydromethylfurfural (HMF), was effectively produced from hexoses in a THF‐H2O biphasic solvent. For the dehydration of fructose, antimony chloride (SbCl3) is first found to be more efficient than other metal chlorides in the THF‐H2O medium. As a ...

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Oxidation of Iron Causes Removal of Phosphorus and Arsenic from Streamwater in Groundwater-Fed Lowland Catchments

17.02.2015 | Stijn Baken; Peter Salaets; Nele Desmet; Piet Seuntjens; Elin Vanlierde; Erik Smolders, Environmental Science & Technology, 2015

The fate of iron (Fe) may affect that of phosphorus (P) and arsenic (As) in natural waters. This study addresses the removal of Fe, P, and As from streams in lowland catchments fed by reduced, Fe-rich groundwater (average: 20 mg Fe L–1). The concentrations of dissolved Fe ...

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A Pore-Scale Study of Fracture Dynamics in Rock Using X-ray Micro-CT Under Ambient Freeze–Thaw Cycling

16.02.2015 | Tim De Kock; Marijn A. Boone; Thomas De Schryver; Jeroen Van Stappen; Hannelore Derluyn; Bert Masschaele; Geert De S ..., Environmental Science & Technology, 2015

Freeze–thaw cycling stresses many environments which include porous media such as soil, rock and concrete. Climate change can expose new regions and subject others to a changing freeze–thaw frequency. Therefore, understanding and predicting the effect of freeze–thaw cycles is important in ...

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