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4,317 Newest Publications about the topic sulfurrss
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18-Sep-2012 | Tomaso R. R. Bontognali; Alex L. Sessions; Abigail C. Allwood; Woodward W. Fischer; John P. Grotzinger; Roger E. Sum ..., Proceedings of the National Academy of Sciences current issue, 2012
The 3.45-billion-year-old Strelley Pool Formation of Western Australia preserves stromatolites that are considered among the oldest evidence for life on Earth. In places of exceptional preservation, these stromatolites contain laminae rich in organic carbon, interpreted as the fossil remains of ...
18-Sep-2012 | Diana Thaens; Daniel Heinzelmann; Alexander Böhme; Albrecht Paschke; Gerrit Schüürmann, Chemical Research in Toxicology, 2012
Organic electrophiles have the potential to covalently attack DNA bases, and thus initiate mutagenic and carcinogenic processes. In this context, aromatic nitrogen sites of the DNA bases are often particularly nucleophilic, with guanine N7 being one of the most favored sites of adduct formation ...
17-Sep-2012 | Qiangqiang Ren, Journal of Thermal Analysis and Calorimetry, 2012
Biomass is an effective substitute for fossil fuels and has a substantial impact on CO2 reduction. Meanwhile, alkali metal-related problem is a major barrier in biomass combustion. Sludge is a waste with low heating value, high water, sulfur, and nitrogen contents, as well as high phosphorus ...
17-Sep-2012 | Kaushik Shandilya, Ashok Kumar, Environmental Progress, 2012
Abstract Engine exhaust in public transit buses has been associated with health effects. This pilot study examines the toxic nature of these engine exhausts under different idling conditions. The emission tests on public buses were performed with two different fuels: the ultra low sulfur ...
14-Sep-2012 | Yu. V. Popov, Ya. L. Uskach, S. M. Ledenev, N. Yu. Tokmacheva, O. N. Dontsova, Russian Journal of Applied Chemistry, 2012
Interaction of the amylene fraction with sulfur monochloride was studied and the optimal conditions were determined for synthesis of a sulfur- and chlorine-containing additive to GL-4 gear oils of quality class TM-4–12, SAE 80W–85, API.
14-Sep-2012 | T. N. Lugovitskaya, K. N. Bolatbaev, S. S. Naboichenko, Russian Journal of Applied Chemistry, 2012
Surface activity and fundamental aspects of the wetting effect of three varieties of lignosulfonates with different compositions toward elementary sulfur and sphalerite were determined by a set of physicochemical studies.
14-Sep-2012 | Dongik Jang, Yumkyum Kim, Minsoo Shin, Joonho Lee, Metallurgical and Materials Transactions B, 2012
The effect of temperature on the dissolution rate of carbon from coke in molten iron was investigated using a sampling technique in the temperature range of 1723 K to 1923 K (1450 °C to 1650 °C). The dissolution rate of carbon from coke in molten iron increased as the temperature increased. At ...
14-Sep-2012 | M. Yusuf Khan; Robert L. Russell; William A. Welch; David R. Cocker, III; Sujit Ghosh, Energy & Fuels, 2012
In-use emission rates for a marine vessel operating on hydrotreated algae biofuel are reported for the first time. Emission measurements were made on a four-stroke marine diesel engine from a Stalwart class vessel to compare the emission profile from burning ultra low sulfur diesel (ULSD) to a ...
13-Sep-2012 | Edward J. Emmett, Charlotte S. Richards‐Taylor, Bao Nguyen, Alfonso Garcia‐Rubia, Barry R. Hayter, Michael C. Willis, ChemInform, 2012
Abstract For the first time the title reaction is possible by using an easy to handle and bench‐stable equivalent of sulfur dioxide, DABCO·2SO2.
13-Sep-2012 | Valeria Bongiorno, Serena Campodonico, Roberta Caffara, Paolo Piccardo, Maria Maddalena Carnasciali, Journal of Raman Spectroscopy, 2012
In order to contribute to the improvement of restoration and conservation sciences of metallic artefacts belonging to Cultural Heritage, a wide research has been started on the study of artificial (artistic) and natural (corrosion or alteration) patinas of copper‐based alloys. Micro‐Raman ...