Search results for "pac"

showing 10 items of 28794 documents

CCDC 1962439: Experimental Crystal Structure Determination

2020

Related Article: Philipp Veit, Sebastian Seibert, Christoph Förster, Katja Heinze|2020|Z.Anorg.Allg.Chem.|646|940|doi:10.1002/zaac.201900350

4-ethoxy-234-triferrocenylcyclobut-2-en-1-oneSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1846986: Experimental Crystal Structure Determination

2018

Related Article: Sebastian Lips, Dieter Schollmeyer, Robert Franke, Siegfried R. Waldvogel|2018|Angew.Chem.,Int.Ed.|57|13325|doi:10.1002/anie.201808555

4-methoxy-235-trimethyl-6-(2-methyl-1-benzothiophen-3-yl)phenolSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1433602: Experimental Crystal Structure Determination

2017

Related Article: H. Purandara, S. Foro, B. Thimme Gowda|2017|Acta Crystallogr.,Sect.E:Cryst.Commun.|73|1683|doi:10.1107/S2056989017014669

4-methyl-N-{2-[2-(4-nitrobenzylidene)hydrazinyl]-2-oxoethyl}benzenesulfonamide NN-dimethylformamide solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 2144108: Experimental Crystal Structure Determination

2022

Related Article: Natalina Makieieva, Teobald Kupka, Grzegorz Spaleniak, Oimahmad Rahmonov, Agata Marek, Alfred Błażytko, Leszek Stobiński, Nataliya Stadnytska, Danuta Pentak, Aneta Buczek, Małgorzata A. Broda, Piotr Kuś, Joachim Kusz, Maria Książek|2022|Struct.Chem.|33|2133|doi:10.1007/s11224-022-02026-7

4-oxo-4H-pyran-26-dicarboxylic acid methanol solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 2027280: Experimental Crystal Structure Determination

2020

Related Article: Christian Schumacher, Hannah Fergen, Rakesh Puttreddy, Khai-Nghi Truong, Torsten Rinesch, Kari Rissanen, Carsten Bolm|2020|Org.Chem.Front.|7|3896|doi:10.1039/D0QO01139H

4-{[(4-chlorophenyl)(methyl)oxo-lambda6-sulfanylidene]amino}-2356-tetrafluoropyridineSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1977987: Experimental Crystal Structure Determination

2020

Related Article: Mouad Filali, El Mestafa El Hadrami, Rosaria Bruno, Giovanni De Munno, Abdeslem Bentama, Miguel Julve, Salah-Eddine Stiriba|2020|J.Mol.Struct.|1217|128420|doi:10.1016/j.molstruc.2020.128420

4-{[36-bis(pyridin-2-yl)pyridazin-4-yl]methyl}morpholine monohydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 2027296: Experimental Crystal Structure Determination

2020

Related Article: Christian Schumacher, Hannah Fergen, Rakesh Puttreddy, Khai-Nghi Truong, Torsten Rinesch, Kari Rissanen, Carsten Bolm|2020|Org.Chem.Front.|7|3896|doi:10.1039/D0QO01139H

4-{[ethyl(oxo)phenyl-lambda6-sulfanylidene]amino}-2356-tetrafluoropyridineSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

On the Almost Everywhere Convergence of Multiple Fourier-Haar Series

2019

The paper deals with the question of convergence of multiple Fourier-Haar series with partial sums taken over homothetic copies of a given convex bounded set $$W\subset\mathbb{R}_+^n$$ containing the intersection of some neighborhood of the origin with $$\mathbb{R}_+^n$$ . It is proved that for this type sets W with symmetric structure it is guaranteed almost everywhere convergence of Fourier-Haar series of any function from the class L(ln+L)n−1.

40A05Control and OptimizationBounded set (topological vector space)Type (model theory)01 natural sciencesmultiple Fourier-Haar seriesHomothetic transformationCombinatoricssymbols.namesakeSettore MAT/05 - Analisi Matematica0103 physical sciences42C10Almost everywhere0101 mathematicsMathematicsSeries (mathematics)Applied Mathematics010102 general mathematicsRegular polygonAlmost everywhere convergenceFunction (mathematics)Fourier transformsymbols010307 mathematical physicslacunar serieAnalysisJournal of Contemporary Mathematical Analysis (Armenian Academy of Sciences)
researchProduct

Problem Space Identification for Developing Virtual Reality Learning Environments

2021

Our study argues that the extant literature on virtual reality-based learning environments (VRLEs) currently lacks proper definitions and context descriptions for a problem space, which is fundamental for conducting design science research (DSR). Without properly conducted problem space identification, the most pivotal problems cannot be identified resulting solutions lacking validity and unreliable evaluations. This is a major challenge for the DSR in the educational field, but also for the research on VRLEs. The purpose of this paper is to introduce a novel DSR method to support rigorous problem space identification, which would allow rigorous and profound problem space analysis. The inst…

4112 ForestrykoulutusteknologiaComputer scienceDesign-based researchkehittämistutkimuseducational design research02 engineering and technologyVirtual realityEducational design researchvirtual reality learning environmentsvirtuaalitodellisuus03 medical and health sciencesIdentification (information)0302 clinical medicineHuman–computer interactiondesign science research0202 electrical engineering electronic engineering information engineering020201 artificial intelligence & image processing030212 general & internal medicineDesign science research512 Business and Managementdesign based research1172 Environmental sciencesProblem space
researchProduct

GRB 090313 AND THE ORIGIN OF OPTICAL PEAKS IN GAMMA-RAY BURST LIGHT CURVES: IMPLICATIONS FOR LORENTZ FACTORS AND RADIO FLARES

2010

We use a sample of 19 gamma-ray bursts (GRBs) that exhibit single-peaked optical light curves to test the standard fireball model by investigating the relationship between the time of the onset of the afterglow and the temporal rising index. Our sample includes GRBs and X-ray flashes for which we derive a wide range of initial Lorentz factors (40 < Γ < 450). Using plausible model parameters, the typical frequency of the forward shock is expected to lie close to the optical band; within this low typical frequency framework, we use the optical data to constrain εe and show that values derived from the early time light-curve properties are consistent with published typical values derived from …

420Astrophysics::High Energy Astrophysical PhenomenaLorentz transformationgamma-ray burst: generalFOS: Physical sciencesgamma-ray burstAstrophysicsgeneral [gamma-ray burst]Low frequencylaw.inventionsymbols.namesakelawRange (statistics)QDQCQBHigh Energy Astrophysical Phenomena (astro-ph.HE)PhysicsAstronomy and AstrophysicsLight curve420SynchrotronAfterglowShock (mechanics)Space and Planetary SciencesymbolsAstrophysics - High Energy Astrophysical PhenomenaGamma-ray burstThe Astrophysical Journal
researchProduct