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Ionische dielektrische Relaxationsprozesse in Festkörpern, I / Ionic Dielectric Relaxation Processes in Solids, I : Niederfrequente Relaxation von K- oder NH4-Ionen in Einkristallen von glimmerartigen Schichtsilicaten. Untersuchung von N-H · · · O Wasserstoffbrückenbindungen / Low-frequency Relaxation of K-- or NH4-Ions in Single-Crystals of Mica-Type Layer Silicates. Investigation of N-H · · · O Hydrogen Bonds

Günter Schön2014-01-01OpenAlex

Dielectric measurements have been made on single-crystals of mica-type layer silicates (vermiculites) in the frequency range between 30 Hz and 10 MHz. The migration of K⁺-and NH₄⁺-interlayer cations by free cation sites causes a low-frequency relaxation. It is interpreted by the orientation of large dipoles they form…

Glass properties and applicationsBuilding materials and conservationSolid-state spectroscopy and crystallography

Topological Origin of Fragility, Network Adaptation, and Rigidity and Stress Transitions in Especially Homogenized Nonstoichiometric Binary GexS100–x Glasses B

Shibalik Chakraborty、P. Boolchand2014-01-01The Journal of Physical Chemistry

Binary GeₓS₁₀₀–ₓ glasses reveal a richness of elastic and chemical phase transitions driven by network topology. With increasing Ge content (x), well-defined rigidity at xc(1) = 19.3(5)% and a stress transition at xc(2) = 24.9(5)% are observed in Raman scattering. In modulated DSC measurements, the nonreversing enthal…

Material Dynamics and PropertiesGlass properties and applicationsPhase-change materials and chalcogenides

FORMULASI S-SNEDDS (Solid Self-Nano Emulsifying Drug Delivery System) KETOPROFEN MENGGUNAKAN VIRGIN COCONUT OIL, TWEEN 80, TWEEN 20, DAN POLIETILEN GLIKOL 400

Sholihatun Pramudita、M.Si. rer. nat. Ronny Martien2014-01-01OpenAlex

Ketoprofen memiliki kelarutannya yang rendah, sehingga untuk mengatasi masalah tersebut maka ketoprofen diformulasikan menjadi solid SNEDDS diawali dengan pembuatan SNEDDS, kemudian dibentuk menjadi serbuk dengan penambahan solid carrier. Solid SNEDDS ketoprofen dibuat dengan menggunakan campuran VCO, surfaktan Tween…

Nanoparticle-Based Drug DeliveryDrug Solubulity and Delivery SystemsAdvanced Drug Delivery Systems

Structure and Electronic Spectra of Purine–Methyl Viologen Charge Transfer Complexes

A.S. Jalilov、Sameer Patwardhan、Arunoday Singh 等 7 位作者2014-01-01The Journal of Physical Chemistry

The structure and properties of the electron donor–acceptor complexes formed between methyl viologen and purine nucleosides and nucleotides in water and the solid state have been investigated using a combination of experimental and theoretical methods. Solution studies were performed using UV–vis and ¹H NMR spectrosco…

Organic Light-Emitting Diodes ResearchConducting polymers and applicationsPhotochemistry and Electron Transfer Studies

Grafted PLGA-microparticles

Xue Yan Wang2014-01-01University of Vienna

Derzeit stehen Mikro-und Nanopartikel als Drug Delivery Systeme im Mittelpunkt des Interesses von Forschung und Entwicklung im pharmazeutischen Bereich. Sie bieten viele Vorteile wie die Verfügbarkeit unterschiedlicher Herstellungstechniken und damit die Anpassungsfähigkeit an die Eigenschaften des Wirkstoffes. Darübe…

biodegradable polymer synthesis and propertiesAdvanced Drug Delivery SystemsBiopolymer Synthesis and Applications

Thienylpyrroles : Theoretical Studies on the Preferred Conformation and Electronic Structure

Vincenzo Galasso、M. Milun、Nenad Trinajstić2014-01-01OpenAlex

The most probable conformation of the isomeric thienylpyrroles has been investigated using the HOFFMANN’S variant of the Extended HUCKEL Theory. Planar syn conformation is predicted slightly more stable than anti for 2,2′-, 2,3′-, and 3,2′-isomers, while the 3,3′-isomer is predicted to have anti conformation slightly…

Advanced Chemical Physics StudiesPorphyrin and Phthalocyanine ChemistryOrganic Chemistry Cycloaddition Reactions

An Evaluation of Local Thermal Analysis of Polymers on the Sub-Micrometer Scale Using Heated Scanning Probe Microscopy Cantilevers B

ThomasJ. Fischinger、Martin Laher、Sabine Hild2014-01-01The Journal of Physical Chemistry

A basic understanding of thermal properties of polymers is of fundamental importance for the development of advanced polymers. However, up to now, mainly bulk properties have been investigated. To characterize local softening processes in polymers, a local thermal analysis (LTA) technique is applied as an add-on to a…

Force Microscopy Techniques and ApplicationsThermal properties of materialsAdhesion, Friction, and Surface Interactions

Critical Exponents for Solvent Extraction Resolved Using SAXS B

Ross J. Ellis2014-01-01The Journal of Physical Chemistry

The solvent extraction of an ionizable solute (H₃PO₄) from water into a water-in-oil microemulsion, and subsequent organic phase splitting (known as third phase formation), has been recast as a critical phenomenon by linking system structure to solute concentration via a critical exponent. The transuranic extraction (…

Surfactants and Colloidal SystemsCrystallization and Solubility StudiesChemical and Physical Properties in Aqueous Solutions

Fabrication of multi-walled carbon nanotube–carbon fiber hybrid material via electrophoretic deposition followed by pyrolysis process Part A Applied science and manufacturing

Ehsan Moaseri、Majid Karimi、Morteza Maghrebi 等 4 位作者2014-01-01Composites

An integrated multi-walled carbon nanotube (MWCNT)–carbon fiber (CF) hybrid material has been fabricated by electrophoretic deposition of acid-functionalized MWCNTs on CF surface followed by soaking in a 10% solution of petroleum pitch in toluene, followed by pyrolysis in a nitrogen atmosphere. It has been revealed th…

Supercapacitor Materials and FabricationFiber-reinforced polymer compositesElectrophoretic Deposition in Materials Science

Strahlenchemische Versuche zur Erzeugung von Blei- und Zinnradikalen : Formation of Lead and Tin Radicals in γ-Irradiated 2-MTHF Glass at 77°K

H. Jungbluth、H. J. Möckel、J. Wendenburg2014-01-01Zeitschrift für Naturforschung B

Triphenyltinchloride and -acetate, the corresponding lead compounds, and Tribenzyltinchloride are effective electron scavengers in γ-irradiated glasses from 2-Methyltetrahydrofuran at 77°K. The reaction with the electrons leads to the formation of tin- and leadradicals via dissociative electron capture. Only in the ca…

Glass properties and applicationsPhotochemistry and Electron Transfer StudiesPhase-change materials and chalcogenides

Coarse-Grained Models for Aqueous Polyethylene Glycol Solutions B

Eunsong Choi、Jagannath Mondal、Arun Yethiraj2014-01-01The Journal of Physical Chemistry

A new coarse-grained force field is developed for polyethylene glycol (PEG) in water. The force field is based on the MARTINI model but with the big multipole water (BMW) model for the solvent. The polymer force field is reparameterized using the MARTINI protocol. The new force field removes the ring-like conformation…

Material Dynamics and PropertiesTheoretical and Computational PhysicsElectrostatics and Colloid Interactions

Bestimmung des nucleophilen Charakters der Zinn-Kohlenstoff-Bindung, I / Determination of the Nucleophilicity of Tin-Carbon Bond, I : SO2-Einschiebung in Triphenylmethylzinn / SO2-Insertion into Triphenylmethyltin

Udo Kunze、Johnson D. Koola2014-01-01Zeitschrift für Naturforschung B

The SO₂-insertion into the tin-carbon bond of mixed tetraorganostannanes, R₃SnR’ (R = alkyl, R’ = aryl, and vice versa), is determined by the nucleophilicity of the organic residue attached to metal, the ease of cleavage decreasing in the order aryl > alkenyl ⪢ alkyl. As has been proved by chemical and spectroscopic m…

Corrosion Behavior and InhibitionInorganic and Organometallic ChemistryOrganometallic Compounds Synthesis and Characterization

Strong Anisotropic Dynamics of Ultra-Confined Water B

А. И. Колесников、LawrenceM. Anovitz、Eugene Mamontov 等 5 位作者2014-01-01The Journal of Physical Chemistry

Dynamics of water confined in ∼5 A diameter channels of beryl and cordierite single crystals were studied by using inelastic (INS) and quasielastic (QENS) neutron scattering. The INS spectra for both samples were similar and showed that there are no hydrogen bonds acting on water molecule, which experiences strong ani…

High-pressure geophysics and materialsMaterial Dynamics and PropertiesMineralogy and Gemology Studies

Remote Ischemic Postconditioning During Percutaneous Coronary Interventions

ShaharLavi、SabrinaD’Alfonso、PantelisDiamantouros 等 9 位作者2014-01-01Circulation Cardiovascular Interventions

Background—Remote ischemic preconditioning may result in reduction in infarct size during percutaneous coronary intervention (PCI). It is unclear whether remote ischemic postconditioning (RIPost) will reduce the incidence of myocardial injury after PCI, and whether ischemic conditioning of a larger remote organ (thigh…

Cardiac Imaging and DiagnosticsCardiac Ischemia and ReperfusionPolymer Nanocomposite Synthesis and Irradiation

Функциональное моделирование управления синтезом углеродных нановолокон

В. В. Бурляев、Е. В. Бурляева、Alexey Nikolaev 等 5 位作者2014-01-01Fine Chemical Technologies

We discover and formalize the relations between set properties of the material and its synthesis conditions. We provide a formal description of carbon nanotubes synthesis control by means of functional modeling. The result is the hierarchical structure visual description that is the set of related diagrams. The diagra…

Carbon Nanotubes in CompositesAdvanced Theoretical and Applied Studies in Material Sciences and GeometryNanotechnology research and applications

Espectroscopia de femtossegundos e propriedades ópticas não lineares em nanomateriais bidimensionais

Thonimar Vieira de Alencar Souza2014-01-01Americanae (AECID Library)

Materiais bidimensionais sao estruturas cristalinas com apenas poucos atomos de espessura. O grafeno, assim como dissulfeto de molibdenio (MoS2) sao dois mate- riais bem conhecidos por esta caracteristica. Nesta tese apresentaremos como estas nanoestruturas foram investigadas utilizando tecnicas de espectroscopia e mi…

2D Materials and ApplicationsMolecular Junctions and NanostructuresChemical and Physical Properties of Materials

Structural and Topological Control on Physical Properties of Arsenic Selenide Glasses B

DerrickC. Kaseman、Ivan Hung、Zhehong Gan 等 6 位作者2014-01-01The Journal of Physical Chemistry

The structures of Ge-doped arsenic selenide glasses with Se contents varying between 25 and 90 at. % are studied using a combination of high-resolution, two-dimensional ⁷⁷Se nuclear magnetic resonance (NMR) and Raman spectroscopy. The results indicate that, in contrast to the conventional wisdom, the compositional evo…

Glass properties and applicationsPhase-change materials and chalcogenidesMineralogy and Gemology Studies

Материалы на основе порошкообразных отходов плавки чугуна и перлита для формирования экранов электромагнитного излучения

О. В. Бойправ、Т. В. Борботько、Л. Л. Ганьков2014-01-01OpenAlex

Boyprav O. V., Borbotko T. V., Gankov L. L. Materials based on powdery waste of smelting cast iron and perlite for forming screens of electromagnetic radiation

Industrial Engineering and TechnologiesMaterial Properties and ApplicationsEngineering and Environmental Studies

Interpreting Diatom Communities in the Upper Main Stem of the Susquehanna River

Jack R. Holt2014-01-01Bucknell Digital Commons (Bucknell University)

From 2009 to the present, diatom periphyton communities have been collected as part of a long-term monitoring program summer and fall between Sunbury and Selinsgrove on a transect near Shady Nook, Byers Island on the Susquehanna River. The overall purpose of the monitoring program was to establish a baseline together…

Diatoms and Algae ResearchAquatic Invertebrate Ecology and BehaviorWater Quality and Resources Studies