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4.437 Aktuelle Fachpublikationen zum Thema temperature

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Modification of Ash Fusion Behavior of Lignite by the Addition of Different Biomasses

23.04.2015 | Fenghai Li; Yitian Fang, Energy & Fuels, 2015

The fusion characteristics of ash mixtures of two lignites (Husheng and Xiaolongtan) and three biomasses (peanut hull, corn straw, and pine sawdust) were investigated by measurements using ash fusion temperature (AFT) detector, X-ray diffraction, normalized reference intensity ratio, analysis ...

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Experimental and Chemical Kinetics Study of the Effects of Halon 1211 (CF2BrCl) on the Laminar Flame Speed and Ignition of Light Hydrocarbons

17.04.2015 | Olivier Mathieu; Charles Keesee; Claire Gregoire; Eric L. Petersen, Journal of Physical Chemistry A, 2015

In this study, the effect of Halon 1211 (CF2BrCl) on the ignition delay time and laminar flame speed of CH4, C2H4, and C3H8 were investigated experimentally for the first time. The results showed that the effects of Halon 1211 on the ignition delay time are strongly dependent on the hydrocarbon: ...

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Decarboxylation and simultaneous reduction of silver(I) [German sz ligature}-ketocarboxylates with three types of coordination

16.04.2015 | Mariko Hatamura; Shunro Yamaguchi; Shin-ya Takane; Yu Chen; Katsuaki Suganuma, Dalton Transactions, 2015

A series of silver(I) ß-ketocarboxylates were prepared by reaction of ß-ketocarboxylic acids with silver nitrate in the presence of diethanolamine. The silver(I) ß-ketocarboxylates decomposed over a narrow temperature range to form metallic silver, CO2, and the corresponding ketones. In addition, ...

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Sensors, Vol. 15, Pages 8919-8930: Ultra-High Sensitivity Zinc Oxide Nanocombs for On-Chip Room Temperature Carbon Monoxide Sensing

16.04.2015 | Pan, Xiaofang ; Zhao, Xiaojin, Sensors, 2015

In this paper, we report an on-chip gas sensor based on novel zinc oxide (ZnO) nanocombs for carbon monoxide (CO) sensing. With ZnO gas sensing nanocombs fully integrated on a single silicon chip, the concept of low cost complementary-metal-oxide-semiconductor (CMOS) microsensor capable of ...

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Theoretical Investigation on the Reaction between OH Radical and 4,4-Dimethyl-1-pentene in the Presence of O2

16.04.2015 | Weichao Zhang; Benni Du, Journal of Physical Chemistry A, 2015

The atmospheric oxidation mechanism of 4,4-dimethyl-1-pentene (DMP441) initiated by OH radical has been theoretically investigated at the BH&HLYP/6-311++G(d,p) and CCSD(T)/6-31+G(d,p) levels of theory. HC(O)H and 3,3-dimethylbutanal [(CH3)3CCH2C(O)H] are identified in our calculations as major ...

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Ultraclean Patterned Transfer of Single-Layer Graphene by Recyclable Pressure Sensitive Adhesive Films

16.04.2015 | Sang Jin Kim; Teajun Choi; Bora Lee; Sunwoo Lee; Kyoungjun Choi; Jong Bo Park; Je Min Yoo; Yong Seok Choi; Jaechul R ..., Nano Letters, 2015

We report an ultraclean, cost-effective, and easily scalable method of transferring and patterning large-area graphene using pressure sensitive adhesive films (PSAFs) at room temperature. This simple transfer is enabled by the difference in wettability and adhesion energy of graphene with respect ...

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Helical alignment inversion of microtubules in accordance with a structural change in their lattice

15.04.2015 | Kazuhiro Shikinaka; Saori Mori; Kiyotaka Shigehara; Hiroyasu Masunaga, Soft Matter, 2015

Giant helical (oriented chiral nematic) alignments of microtubules of nanometer to centimeter lengths are known to form over a temperature gradient during anisotropic spiral propagation via tubulin dimer addition in a capillary cell. Such helical alignments may be modified by the addition of ...

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Corrole-BODIPY Dyads: Synthesis, Structure, and Electrochemical and Photophysical Properties

15.04.2015 | Biju Basumatary; Adiki Raja Sekhar; R. V. Ramana Reddy; Jeyaraman Sankar, Inorganic Chemistry, 2015

A free-base and its Cu(III) derivative of bichromophoric meso-β linked corrole-BODIPY dyad were synthesized and structurally characterized by single crystal X-ray diffraction (XRD). Both corrole and BODIPY fragments maintained respective ground state electronic isolation despite their connection ...

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A Review of Hydrothermal Pretreatment of Lignocellulosic Biomass for Enhanced Biogas Production

15.04.2015 | He, Leilei; Huang, He; Zhang, Zhenya; Lei, Zhongfang, Organic Chemistry, 2015

Abstract: Lignocellulosic biomass is regarded as a promising renewable resource that can be potentially used to provide second-generation biofuels or to produce chemicals. Hydrothermal treatment (HTT) of lignocellulosic biomass has received considerable attention because of its feasibility ...

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Modular Degradable Hydrogels Based on Thiol-Reactive Oxanorbornadiene Linkers

14.04.2015 | Cody J. Higginson; Seung Yeon Kim; Miguel Peláez-Fernández; Alberto Fernández-Nieves; M.G. Finn, Journal of the American Chemical Society, 2015

Oxanorbornadiene dicarboxylate (OND) reagents are potent Michael acceptors, the adducts of which undergo fragmentation by retro-Diels–Alder reaction at rates that vary with the substitution pattern on the OND moiety. Rapid conjugate addition between thiol-terminated tetravalent PEG and ...

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