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1.725 Aktuelle Fachpublikationen zum Thema temperature

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Analysis of nitrogenous organic compounds from mainstream cigarette smoke using low‐temperature solvent extraction followed by comprehensive two‐dimensional gas chromatography with high‐resolution time‐of‐flight mass spectrometry

12.05.2015 | Zhangmin Xiang, Kai Cai, Shuping Zhou, Zhaoliang Geng, Wenjie Pan, Journal of Separation Science, 2015

A method involving comprehensive two‐dimensional gas chromatography coupled to high‐resolution time‐of‐flight mass spectrometry was developed and applied to analysis of nitrogenous organic compounds present in mainstream cigarette smoke trapped on self‐designed equipment. The samples were ...


Entropy, Vol. 17, Pages 3124-3151: 2D Temperature Analysis of Energy and Exergy Characteristics of Laminar Steady Flow across a Square Cylinder under Strong Blockage

12.05.2015 | Korukcu, M. Ozgun, Entropy, 2015

Energy and exergy characteristics of a square cylinder (SC) in confined flow are investigated computationally by numerically handling the steady-state continuity, Navier-Stokes and energy equations in the Reynolds number range of Re = 10–50, where the blockage ratio (β = B/H) is kept constant at ...


Effect of convergent–divergent flow on thermal and crystallization properties of PP/MWCNTs nanocomposites

08.05.2015 | Xiaochun Yin, Zhongwei Yu, Guizhen Zhang, Zhitao Yang, Baiping Xu, Journal of Applied Polymer Science, 2015

ABSTRACT A melt‐mixing process based on convergent–divergent flow has been used to prepare PP/MWCNT composites with a self‐built convergent–divergent die (C‐D die) composed of different numbers of convergent plates. Dynamic extensional deformation was generated in the C‐D die, which improved ...


A Handheld Flow Genetic Analysis System (FGAS): Towards Rapid, Sensitive, Quantitative, Multiplex Molecular Diagnosis at the Point-of-Care Level

08.05.2015 | Bowen Shu; Chunsun Zhang; Da Xing, Lab on a Chip, 2015

A handheld flow genetic analysis system (FGAS) is proposed for rapid, sensitive, multiplex, real-time quantification of nucleic acids at the point-of-care (POC) level. The FGAS includes a helical thermal-gradient microreactor and a microflow actuator, as well as control circuitry for temperature, ...


Effect of substrate temperature on initiated plasma enhanced chemical vapor deposition of PHEMA thin films

07.05.2015 | Mehmet Gürsoy, Mustafa Karaman, physica status solidi (c), 2015

Abstract Poly(2‐hydroxyethyl methacrylate) (PHEMA) thin films were deposited on silicon wafers by initiated plasma enhanced chemical vapour deposition (i‐PECVD) method at different substrate temperatures. Di tert‐butyl peroxide (TBPO) was used as an initiator, and all deposition experiments ...


Rate Coefficient Determinations for H + NO2 → OH + NO from High Pressure Flow Reactor Measurements

07.05.2015 | Francis M. Haas; Frederick L. Dryer, Journal of Physical Chemistry A, 2015

Rate coefficients for the reaction H + NO2 → OH + NO (R1) have been determined over the nominal temperature and pressure ranges of 737–882 K and 10–20 atm, respectively, from measurements in two different flow reactor facilities: one laminar and one turbulent. Considering the existing database of ...


Using Dielectric Relaxation Spectroscopy to Characterize the Glass Transition Time of Polydextrose

05.05.2015 | Martin G. Buehler, Michael L. Kindle, Brady P. Carter, Journal of Food Science, 2015

Abstract Dielectric relaxation spectroscopy was used to characterize the glass transition time, tg, of polydextrose, where the glass transition temperature, Tg, and water activity, aw (relative humidity), were held constant during polydextrose relaxation. The tg was determined from a shift in ...


Energies, Vol. 8, Pages 3867-3881: Simulation of a Standalone, Portable Steam Generator Driven by a Solar Concentrator

05.05.2015 | Sabry, Mohamed ; Nahas, Mouaaz ; Al-Lehyani, Saud H., Energies, 2015

Solar energy is a good solution for energy-deficiency problems, especially in regions such ‎as rural areas in the Middle East that have not been electrified yet or are ‎under electrification. In ‎this paper, with the aid of a Computational Fluid Dynamics simulation, we propose a ‎system that ...


Fast Water Thermo-pumping Flow Across Nanotube Membranes for Desalination

05.05.2015 | Kuiwen Zhao; Huiying Wu, Nano Letters, 2015

Development of high-efficiency and low-cost seawater desalination technologies is critical to meet global water crisis. Here we report a fast water pumping method in which the water molecules in seawater are continuously pumped across nanotube membranes driven by a small temperature difference, ...


Crystal structure and high-temperature properties of the Ruddlesden–Popper phases Sr3−xYx(Fe1.25Ni0.75)O7−δ (0≤x≤0.75)

03.05.2015 | Author(s): Louise Samain , Philipp Amshoff , Jordi J. Biendicho , Frank Tietz , Abdelfattah Mahmoud , Raphaël P ..., Journal of Solid State Chemistry, 2015

Publication date: July 2015 Source:Journal of Solid State Chemistry, Volume 227 Author(s): Louise Samain , Philipp Amshoff , Jordi J. Biendicho , Frank Tietz , Abdelfattah Mahmoud , Raphaël P. Hermann , Sergey Ya. Istomin , Jekabs Grins , Gunnar Svensson Ruddlesden–Popper n=2 ...


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