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1.661 Aktuelle Fachpublikationen zum Thema temperature

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Effect of N2 on emission profile and excitation temperature in axially viewed plasma-ICP OES

30.12.2014 | Dirce Pozebon; Guilherme Luiz Scheffler, Journal of Analytical Atomic Spectrometry, 2014

Fundamental studies were conducted in order to gain useful insights about energy transfer that takes place when a low flow (20 mL min-1) of N2 is introduced into the central channel of the Ar-ICP source in inductively coupled plasma optical emission spectrometry (ICP OES). Axial and radial ...

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An analytical relationship of concentration dependent interfacial solute distribution coefficient for aqueous layer freeze concentration

30.12.2014 | Xiao Dong Chen, Ping Chen, Duo Wu, AIChE Journal, 2014

Abstract Freeze concentration (FC) is a sub‐zero temperature solute concentration procedure, favoring the retention of high quality compounds such as food ingredients and biological materials. It is known that modeling solute inclusion in the ice layers or ice crystals formed in a convective ...

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Investigation on the Applicability of the Effervescent Atomizer in Spray Drying of Foods: Influence of Liquid Viscosity on Nozzle Internal Two‐Phase Flow and Spray Characteristics

29.12.2014 | Philipp Stähle, Volker Gaukel, Heike P. Schuchmann, Journal of Food Process Engineering, 2014

Abstract The influence of viscosity of a food‐based model liquid on the flow patterns inside an effervescent atomizer as well as on the spray was investigated. Viscosity ranged from 0.001 to 0.308 Pa·s. The flow pattern inside the atomizer changes from annular to an unfavorable slug flow for ...

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Electron self-exchange rates of the π-radical cation of ZnTPP in organic solvents determined by EPR spectroscopy

28.12.2014 | Author(s): Josua Bächle , Boryana Mladenova , Günter Grampp, Chemical Physics Letters, 2014

Publication date: 20 January 2015 Source:Chemical Physics Letters, Volume 620 Author(s): Josua Bächle , Boryana Mladenova , Günter Grampp The electron self-exchange rates of ZnTPP and its corresponding π radical cation were determined in three solvents with different electrostatic ...

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Simultaneous determination of herbicides residues in tobacco using ultra performance convergence chromatography coupled with solid‐phase extraction

27.12.2014 | Weiyun Guo, Zhaoyang Bian, Daohong Zhang, Gangling Tang, Wei Liu, Jianlong Wang, Zhonghao Li, Fei Yang, Journal of Separation Science, 2014

A time‐saving and organic‐solvent‐efficient method to simultaneously determine six kinds of herbicide residues in tobacco using solid‐phase extraction for sample clean‐up and pre‐concentration and the highly sensitive ultra performance convergence chromatography method was developed. Parameters ...

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Curing behavior and network formation of cyanate ester resin/polyethylene glycol

26.12.2014 | Junxian Ma, Xuefeng Lei, Di Tian, Liangjie Yuan, Chongshan Liao, Journal of Applied Polymer Science, 2014

ABSTRACT The mechanism and kinetics of the curing reaction of cyanate ester (CE) resin modified with polyethylene glycol were investigated by means of differential scanning calorimetry (DSC) and Fourier‐transform infrared spectroscopy (FTIR). The relationship of heat flow versus conversion ...

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Cooling dynamics of self‐assembled monolayer coating for integrated gold nanocrystals on a glass substrate

26.12.2014 | Kouhei Ichiyanagi, Hiroshi Sekiguchi, Tokushi Sato, Shunsuke Nozawa, Ayana Tomita, Manabu Hoshino, Shin‐ichi Adachi, ..., Journal of Synchrotron Radiation, 2014

Picosecond time‐resolved X‐ray diffraction has been used to study the nanoscale thermal transportation dynamics of bare gold nanocrystals and thiol‐based self‐assembled monolayer (SAM)‐coated integrated gold nanocrystals on a SiO2 glass substrate. A temporal lattice expansion of 0.30–0.33% was ...

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ZnO as an Efficient Nucleating Agent for Rapid, Room Temperature Synthesis and Patterning of Zn-Based Metal–Organic Frameworks

22.12.2014 | Erika Zanchetta; Luca Malfatti; Raffaele Ricco; Mark J. Styles; Fabio Lisi; Campbell J. Coghlan; Christian J. Doonan ..., Chemistry of Materials, 2014

The use of ZnO particles as efficient agents for seeding, growing, and precisely positioning metal–organic frameworks (MOFs) is described. Ceramic seeds have been successfully used for the preparation of Zn-based MOFs with a number of different carboxylic acids: terephthalic acid, ...

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Energies, Vol. 7, Pages 8465-8482: Computational Fluid Dynamic Modeling of Horizontal Air-Ground Heat Exchangers (HAGHE) for HVAC Systems

22.12.2014 | Congedo, Paolo Maria; Lorusso, Caterina ; De Giorgi, Maria Grazia; Laforgia, Domenico, Energies, 2014

In order to satisfy the requirements of Directive 2010/31/EU for Zero Energy Buildings (ZEB), innovative solutions were investigated for building HVAC systems. Horizontal air-ground heat exchangers (HAGHE) offer a significant contribution in reducing energy consumption for ventilation, using the ...

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Sensors, Vol. 14, Pages 24462-24471: Fabrication of a PMN-PT Single Crystal-Based Transcranial Doppler Transducer and the Power Regulation of Its Detection System

19.12.2014 | Yue, Qingwen ; Liu, Dongxu ; Wang, Wei ; Di, Wenning ; Lin, Di ; Wang, Xi'an ; Luo, Haosu, Sensors, 2014

Doppler sonographic measurement of flow velocity in the basal cerebral arteries through the intact skull was developed using a pulsed Doppler technique and 2 MHz emitting frequency. Relaxor-based ferroelectric single crystals Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) were chosen to be the piezoelectric ...

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