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62.706 Aktuelle Fachpublikationen zum Thema temperature

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Upper tropospheric water vapour and its interaction with cirrus clouds as seen from IAGOS long-term routine in-situ observations

21.02.2017 | Andreas Petzold; Martina Krämer; Patrick Neis; Christian Rolf; Susanne Rohs; Florian Berkes; Herman G. J. Smit; Mart ..., Faraday Discussions, 2017

IAGOS (In-service Aircraft for a Global Observing System) performs long-term routine in-situ observations of atmospheric chemical composition (ozone, CO, NOx, NOy, CO2, CH4), water vapour, aerosols, clouds and temperature on a global scale by operating compact instruments on board of passenger ...

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Heat shock antagonizes UVA-induced responses in murine melanocytes and melanoma cells: an unexpected interaction

21.02.2017 | Leonardo Vinícius Monteiro de Assis; Maria Nathália Moraes; Ana Maria de Lauro Castrucci, Photochemical & Photobiological Sciences, 2017

The skin is under the influence of oscillatory factors such as light and temperature. This organ possesses a local system that controls several aspects in a time-dependent manner; moreover, the skin has a well-known set of opsins whose function is still unknown. We demonstrate that heat shock ...

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An assessment of hydrocarbon species in the methanol-to-hydrocarbon reaction over a ZSM-5 catalyst

21.02.2017 | Suwardiyanto; Russell F. Howe; Emma K. Gibson; C. Richard A. Catlow; Ali Hameed; James McGregor; Paul Collier; Stewa ..., Faraday Discussions, 2017

A ZSM-5 catalyst is examined in relation to the methanol-to-hydrocarbon (MTH) reaction as a function of reaction temperature and time-on-stream. The reaction profile is characterised using in-line mass spectrometry. Furthermore, the material contained within a catch-pot downstream from the ...

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Raman Spectra of Single Wall Carbon Nanotubes at High Temperatures: Pretreated Samples in Nitrogen Atmosphere Improve Thermal Stability in Air

21.02.2017 | Joel Molina-Duarte; Leticia Ithsmel Espinosa-Vega; Angel Gabriel Rodriguez; Ricardo Alberto Guirado-Lopez, Physical Chemistry Chemical Physics, 2017

We present a combined experimental and theoretical study dedicated to analyze the structural stability and chemical reactivity of single wall carbon nanotubes (SWCNT) in the presence of air and nitrogen atmospheres on the temperature interval of 300—1000 K. The temperature dependence of the ...

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Aqueous singlet oxygen reaction kinetics of furfuryl alcohol: Effect of temperature, pH, and salt content

21.02.2017 | Elena Appiani; Rachele Ossola; Douglas Latch; Paul R Erickson; Kristopher McNeill, Journal of Environmental Monitoring, 2017

The rate constant for the reaction between furfuryl alcohol (FFA) and singlet oxygen (1O2) in aqueous solution was measured as a function of temperature, pH and salt content employing both steady-state photolysis (value determination) and time-resolved singlet oxygen phosphorescence methods. The ...

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Microscopic nucleation and propagation rates of an alanine-based [small alpha]-helix

21.02.2017 | Chun-Wei Lin; Feng Gai, Physical Chemistry Chemical Physics, 2017

An infrared temperature-jump (T-jump) study by Huang et al. (Proc. Natl. Acad. Sci. U. S. A., 2002, 99, 2788–2793) showed that the conformational relaxation kinetics of an alanine-based α-helical peptide depend not only on the final temperature (Tf) but also on the initial temperature (Ti) when ...

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New Supramolecular Nano-aggregate of Curcumin-Curcubit[7]uril: Synthesis, photopysical properties and biocompatibility evaluation

21.02.2017 | Leandro Araújo Azevedo; Leonis L. da Luz; Jamylle Nunes Souza Ferro; Emiliano Oliveira Barreto; Ricardo Oliveira Si ..., Photochemical & Photobiological Sciences, 2017

The suplamolecular nano-aggregate CUR-CB[7] (CUR= curcumin and CB[7]= curcubit[7]uril) was efficiently prepared by mixing CUR and CB[7] at molar ratio of 1:1 in ethanol at room temperature. The supramolecular aggregate formation was evidenced by mainly FTIR, 1H RMN, DOSY and spectroscopy ...

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Liquid Metal Enabled Microfluidics

21.02.2017 | Khashayar Khoshmanesh; Shiyang Tang; Jiu Yang Zhu; Samira Schaefer; Arnan Mitchell; Kourosh Kalantar-zadeh; Michael ..., Lab on a Chip, 2017

Several gallium-based liquid metal alloys are liquid at room temperature. As ‘liquid’, such alloys have a low viscosity and a high surface tension while as ‘metal’, they have high thermal and electrical conductivities, similar to mercury. However, unlike mercury, these liquid metal alloys have ...

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A rapid stability indicating LC-method for determination of praziquantel in presence of its pharmacopoeial impurities

20.02.2017 | Author(s): Hisham Hashem, Adel Ehab Ibrahim, Magda Elhenawee, Arabian Journal of Chemistry, 2017

Publication date: February 2017 Source:Arabian Journal of Chemistry, Volume 10, Supplement 1 Author(s): Hisham Hashem, Adel Ehab Ibrahim, Magda Elhenawee This study reports for the first time about a stability indicating RP-HPLC method for quantitative determination of Praziquantel ...

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Optimization of ultrasonic assisted extraction of fatty acids from Borago Officinalis L. flower by central composite design

20.02.2017 | Author(s): Negin Fasih Ramandi, Alireza Ghassempour, Nahid Mashkouri Najafi, Ensieh Ghasemi, Arabian Journal of Chemistry, 2017

Publication date: February 2017 Source:Arabian Journal of Chemistry, Volume 10, Supplement 1 Author(s): Negin Fasih Ramandi, Alireza Ghassempour, Nahid Mashkouri Najafi, Ensieh Ghasemi In the present study, the ultrasonic assisted extraction (UAE) of essential oils and fatty acids ...

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