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658 Aktuelle Fachpublikationen zum Thema temperature

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Temperature and precipitation projections over Bangladesh and the upstream Ganges, Brahmaputra and Meghna systems.

29.04.2015 | J. Caesar; T. Janes; A. Lindsay; B. Bhaskaran, Journal of Environmental Monitoring, 2015

South Asia is a region of complex atmospheric dynamics and therefore changes resulting from increasing greenhouse gas concentrations, combined with existing vulnerability to extreme weather events such as flooding, could put the region at particular risk from climate change. However, current ...

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Development and Evaluation of a Database of Dietary Bioaccumulation Test Data for Organic Chemicals in Fish

13.04.2015 | Jon A. Arnot; Cristina L. Quinn, Environmental Science & Technology, 2015

Dietary bioaccumulation tests for fish have been conducted for about 40 years. Standardized test guidance has recently been developed. Test metrics of primary scientific and regulatory interest are the whole body depuration rate constant (kT), whole body growth corrected depuration rate constant ...

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Measurements of the HO2 Uptake Coefficients onto Single Component Organic Aerosols

09.04.2015 | P. S. J. Lakey; I. J. George; L. K. Whalley; M. T. Baeza-Romero; D. E. Heard, Environmental Science & Technology, 2015

Measurements of HO2 uptake coefficients (γ) were made onto a variety of organic aerosols derived from glutaric acid, glyoxal, malonic acid, stearic acid, oleic acid, squalene, monoethanol amine sulfate, monomethyl amine sulfate, and two sources of humic acid, for an initial HO2 concentration of 1 ...

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Hydrothermal carbonization of primary sewage sludge and synthetic faeces: Effect of reaction temperature and time on filterability

06.04.2015 | Eric Danso‐Boateng, Richard G. Holdich, Andrew D. Wheatley, Simon J. Martin, Gilbert Shama, Environmental Progress, 2015

The effect of reaction temperature and time on the filterability of slurries of primary sewage sludge (PSS) and synthetic faeces (SF) following hydrothermal carbonization (HTC) was investigated and optimized using response surface methodology (RSM). Filterability was shown to improve as the ...

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Anaerobic digestion of thermal pretreated brewers' spent grains

06.04.2015 | G. Bochmann, B. Drosg, W. Fuchs, Environmental Progress, 2015

Anaerobic digestion offers a good opportunity to degrade residues from breweries to biogas. To improve the anaerobic degradation process thermal pretreatment of brewers' spent grains (BSG) offers the opportunity to increase degradation rate and biogas yield. Aim of the work is to show the ...

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IJERPH, Vol. 12, Pages 3691-3706: Temporal Dynamics and Drivers of Ecosystem Metabolism in a Large Subtropical Shallow Lake (Lake Taihu)

01.04.2015 | Hu, Zhenghua ; Xiao, Qitao ; Yang, Jinbiao ; Xiao, Wei ; Wang, Wei ; Liu, Shoudong ; Lee, Xuhui, International Journal of Environmental Research and Public Health, 2015

With continuous measurements of dissolved oxygen, temperature, irradiance, and wind speed, as well as frequent measurements of pH, oxidation-reduction potential, and algal chlorophyll, temporal dynamics and drivers of ecosystem metabolism in a large nutrient-rich shallow lake (Lake Taihu) are ...

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Chemical Characterization of Unburned Carbon in Coal Fly Ashes by Use of TPD/TPO and LRS Methods

31.03.2015 | Naoto Tsubouchi; Yasuo Ohtsuka; Hiroyuki Hashimoto; Tetsuo Yamada; Harumi Hashimoto, Environmental Science & Technology, 2015

Functional forms of the unburned carbon present in six kinds of coal fly ashes have been examined mainly by the temperature-programmed desorption (TPD)/temperature-programmed oxidation (TPO) and laser Raman spectroscopy (LRS) methods. The carbon contents of the ash samples range from 0.4 to 4.1 ...

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One-Pot Enzymatic Conversion of Carbon Dioxide and Utilization for Improved Microbial Growth

27.03.2015 | Sung-Gil Hong; Hancheol Jeon; Han Sol Kim; Seung-Hyun Jun; EonSeon Jin; Jungbae Kim, Environmental Science & Technology, 2015

We developed a process for one-pot CO2 conversion and utilization based on simple conversion of CO2 to bicarbonate at ambient temperature with no energy input, by using the cross-linking-based composites of carboxylated polyaniline nanofibers (cPANFs) and carbonic anhydrase. Carbonic anhydrase ...

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Selective Catalytic Reduction Operation with Heavy Fuel Oil: NOx, NH3, and Particle Emissions

26.03.2015 | Kati Lehtoranta; Hannu Vesala; Päivi Koponen; Satu Korhonen, Environmental Science & Technology, 2015

To meet stringent NOx emission limits, selective catalytic reduction (SCR) is increasingly utilized in ships, likely also in combination with low-priced higher sulfur level fuels. In this study, the performance of SCR was studied by utilizing NOx, NH3, and particle measurements. Urea ...

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IJERPH, Vol. 12, Pages 3506-3516: Association between Air Pollutants and Cardiovascular Disease Mortality in Wuhan, China

25.03.2015 | Liu, Yisi ; Chen, Xi ; Huang, Shuqiong ; Tian, Liqiao ; Lu, Yuan'an ; Mei, Yan ; Ren, Meng ; Li, Na ; Liu, Li ; ..., International Journal of Environmental Research and Public Health, 2015

We examined the associations of daily mean concentrations of ambient air pollutants (particulate matter (PM10), sulfur dioxide (SO2), nitric oxide (NO2)) and daily cardiovascular diseases (CVD) mortality in Wuhan, China using a case-crossover design to analyze four years of data (2006–2009) ...

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