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4.098 Aktuelle Fachpublikationen zum Thema temperature

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Living Supramolecular Compounds: Influence of Multiple Hydrogen Bond Connection on Molecular Configuration of Monophosphate or Pyrophosphate Thiamine with Anions or Coordination Anions

20.10.2014 | Xiao Xi Zhang, Rui Zhang, Qiao Sun, Si Yue Wei, Xue Ting Xu, Ji Xiao Wang, Feng Ying Bai, Yong Heng Xing, Zeitschrift für anorganische und allgemeine Chemie, 2014

Abstract Three supramolecular compounds with monophosphate or pyrophosphate esters of thiamine, namely, [TPPH+·CF3SO3·H2O] (1), [TMPH+·(CdCl4)0.5·2H2O] (2), and [TMPH+·NO3·2.5H2O] (3) (TPP = thiamine pyrophosphate, TMP = thiamine monophosphate) were synthesized in methanol or water systems at ...

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Preparation and evaluation of nonphosphate terpolymer as scale inhibitor and dispersant for Ca3(PO4)2, BaSO4, and Iron (III) hydroxide scales

18.10.2014 | Yunyun Bu, Yuming Zhou, Qingzhao Yao, Yiyi Chen, Wei Sun, Wendao Wu, Journal of Applied Polymer Science, 2014

ABSTRACT The polymeric scale inhibition and dispersion agents (PAYS) were prepared by graft copolymerization of acrylic acid, allylpolyethoxy carboxylate (APEY) and 2‐acrylamido‐2‐methyl‐propanesulfonic acid by using ammonium persulfate as a radical initiator in aqueous solution, among which ...

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Band‐gap and phonon distribution in alkali halides

18.10.2014 | I. S. Messaoudi, A. Zaoui, M. Ferhat, physica status solidi (b), 2014

A systematic first‐principles study is performed to calculate the structural, electronic, dynamical, and thermodynamic properties of alkali halides NaF, NaCl, NaBr, and NaI by means of both full‐potential linear augmented plane‐wave, and plane wave pseudopotential methods. The obtained ...

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Effects of an ionic liquid as an additive on the thermal denaturation/degradation of lysozyme crystals

17.10.2014 | Zhanzhong Wang, Wenzhi Fang, Lijie Li, Yan Li, Xiaoting Yu, Qing Gu, Fengjuan Zhou, Asia-Pacific Journal of Chemical Engineering, 2014

ABSTRACT Ionic liquids (ILs) have biomaterial applications and are used for protein crystallization. The present study explores the thermal denaturation and degradation kinetics of the lysozyme crystals induced by IL [C4mim]Cl using differential scanning calorimetry (DSC). Lysozyme crystals ...

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Materials, Vol. 7, Pages 7048-7058: Effect of Isomorphous Substitution on the Thermal Decomposition Mechanism of Hydrotalcites

17.10.2014 | Crosby, Sergio ; Tran, Doanh ; Cocke, David ; Duraia, El-Shazly M.; Beall, Gary W., Materials, 2014

Hydrotalcites have many important applications in catalysis, wastewater treatment, gene delivery and polymer stabilization, all depending on preparation history and treatment scenarios. In catalysis and polymer stabilization, thermal decomposition is of great importance. Hydrotalcites form easily ...

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Effect of Hydrocolloids on the Pasting Profiles of Tapioca Starch Mixtures and the Baking Properties of Gluten‐Free Cheese Bread

16.10.2014 | Eduardo Rodriguez‐Sandoval, Misael Cortes‐Rodriguez, Katherine Manjarres‐Pinzon, Journal of Food Processing and Preservation, 2014

Abstract The effect of guar gum and a guar gum/hydroxypropyl methylcellulose (HPMC) blend on the pasting profile of a tapioca starch–precooked corn flour mixture was assessed. Moreover, the baking quality characteristics of gluten‐free (GF) cheese bread with these hydrocolloids added were ...

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A Palladium Nanoparticle–Nanomicelle Combination for the Stereoselective Semihydrogenation of Alkynes in Water at Room Temperature

16.10.2014 | Eric D. Slack, Christopher M. Gabriel, Bruce H. Lipshutz, Angewandte Chemie International Edition, 2014

Abstract The addition of NaBH4 to Pd(OAc)2 in water containing nanomicelles leads to the generation of H2 and Pd nanoparticles. Subsequent reduction of disubstituted alkynes affords Z‐alkenes in high yields. These reactions are general, take place in water at ambient temperatures, and offer ...

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A Palladium Nanoparticle–Nanomicelle Combination for the Stereoselective Semihydrogenation of Alkynes in Water at Room Temperature

16.10.2014 | Eric D. Slack, Christopher M. Gabriel, Bruce H. Lipshutz, Angewandte Chemie, 2014

Abstract The addition of NaBH4 to Pd(OAc)2 in water containing nanomicelles leads to the generation of H2 and Pd nanoparticles. Subsequent reduction of disubstituted alkynes affords Z‐alkenes in high yields. These reactions are general, take place in water at ambient temperatures, and offer ...

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Preliminary one month stability screening of cosmetic multiple emulsions (W/O/W) prepared using cetyl dimethicone copolyol and Polysorbate 80

16.10.2014 | Hira Khan, Akhtar Naveed, Tariq Mahmood, Adnan Jameel, Sabeeh Mohsin, International Journal of Cosmetic Science, 2014

Abstract Background Multiple emulsions are novel carrier systems which have number of applications in pharmaceutical and cosmetic fields. Numerous attempts have been made in the last twenty years in formulating multiple emulsions with acceptable stability at room temperature and at ...

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Sensors, Vol. 14, Pages 19242-19259: High Resolution Switching Mode Inductance-to-Frequency Converter with Temperature Compensation

16.10.2014 | Matko, Vojko ; Milanović, Miro, Sensors, 2014

This article proposes a novel method for the temperature-compensated inductance-to-frequency converter with a single quartz crystal oscillating in the switching oscillating circuit to achieve better temperature stability of the converter. The novelty of this method lies in the switching-mode ...

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