Search results for "Space"

showing 10 items of 21658 documents

CCDC 846271: Experimental Crystal Structure Determination

2012

Related Article: G.Callebaut, S.Mangelinckx, L.Kiss, R.Sillanpaa, F.Fulop, N.De Kimpe|2012|Org.Biomol.Chem.|10|2326|doi:10.1039/c2ob06637h

syn-Ethyl 4-chloro-N-(diphenylmethylene)-3-(((4-methylphenyl)sulfinyl)amino)leucinateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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Chromosome Painting in Cercopithecus petaurista (Schreber, 1774) Compared to Other Monkeys of the Cercopithecini Tribe (Catarrhini, Primates)

2023

The Cercopithecini tribe includes terrestrial and arboreal clades whose relationships are controversial, with a high level of chromosome rearrangements. In order to provide new insights on the tribe’s phylogeny, chromosome painting, using the complete set of human syntenic probes, was performed in Cercopithecus petaurista, a representative species of the Cercopithecini tribe. The results show C. petaurista with a highly rearranged karyotype characterized by the fission of human chromosomes 1, 2, 3, 5, 6, 8, 11, and 12. These results compared with the literature data permit us to confirm the monophyly of the Cercopithecini tribe (fissions of chromosomes 5 and 6), as previously proposed by ch…

synapomorphiesSpace and Planetary ScienceguenonPaleontologyhuman homologieSettore BIO/08 - AntropologiagenomeGeneral Biochemistry Genetics and Molecular BiologyEcology Evolution Behavior and Systematics
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Synchrotron x-ray transmission measurements and modeling of filters investigated for Athena

2020

International audience; Advanced Telescope for High-Energy Astrophysics is a large-class astrophysics space mission selected by the European Space Agency to study the theme "Hot and Energetic Universe." The mission essentially consists of a large effective area x-ray telescope and two detectors: the X-ray Integral Field Unit (X-IFU) and the Wide Field Imager (WFI). Both instruments require filters to shield from out-of-band radiation while providing high transparency to x-rays. The mission is presently in phase B; thus, to consolidate the preliminary design, investigated filter materials need to be properly characterized by experimental test campaigns. We report results from high-resolution…

synchrotron radiationComputer scienceAstrophysics::High Energy Astrophysical PhenomenaMechanical EngineeringAstrophysics::Instrumentation and Methods for AstrophysicsSynchrotron radiationtelescopesAstronomy and AstrophysicsElectronic Optical and Magnetic Materialslaw.inventionTelescopeFilter designSettore FIS/05 - Astronomia E AstrofisicaTransmission (telecommunications)Space and Planetary ScienceControl and Systems EngineeringlawFilter (video)[SDU]Sciences of the Universe [physics]CalibrationOptical filterInstrumentationDigital filterastrophysics space mission Athena optical and thermal filters Wide Field Imager X-ray Integral Field Unit x-ray transmissionRemote sensing
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CCDC 604222: Experimental Crystal Structure Determination

2007

Related Article: K.Ejsmont, R.Gajda, M.Makowski|2007|Acta Crystallogr.,Sect.C:Cryst.Struct.Commun.|63|o80|doi:10.1107/S0108270106052590

t-Butoxycarbonylglycyl-dehydroalanyl-glycine methyl esterSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1444032: Experimental Crystal Structure Determination

2016

Related Article: Fares Ibrahim Amr, Carlos Vila, Gonzalo Blay, M. Carmen Muñoz and José R. Pedro|2016|Adv.Synth.Catal.|358|1583|doi:10.1002/adsc.201600036

t-butyl (1-benzyl-5-chloro-3-(34-dimethyl-5-oxo-1-phenyl-45-dihydro-1H-pyrazol-4-yl)-2-oxo-23-dihydro-1H-indol-3-yl)carbamateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 2092891: Experimental Crystal Structure Determination

2021

Related Article: Laura Carceller-Ferrer, Carlos Vila, Gonzalo Blay, M. Carmen Muñoz, José R. Pedro|2021|Org.Lett.|23|7391|doi:10.1021/acs.orglett.1c02571

t-butyl {1-(methoxymethyl)-3-[2-(3-methyl-5-oxo-1-phenyl-15-dihydro-4H-pyrazol-4-ylidene)propyl]-2-oxo-23-dihydro-1H-indol-3-yl}carbamateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1522803: Experimental Crystal Structure Determination

2017

Related Article: Aino J. Karhu, Juho Jämsä, J. Mikko Rautiainen, Raija Oilunkaniemi, Tristram Chivers and Risto S. Laitinen|2017|Z.Anorg.Allg.Chem.|643|495|doi:10.1002/zaac.201700031

t-butyl(chloroselanyl)selenamidous chlorideSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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Numerical Recovery of Source Singularities via the Radiative Transfer Equation with Partial Data

2013

The inverse source problem for the radiative transfer equation is considered, with partial data. Here we demonstrate numerical computation of the normal operator $X_{V}^{*}X_{V}$ where $X_{V}$ is the partial data solution operator to the radiative transfer equation. The numerical scheme is based in part on a forward solver designed by F. Monard and G. Bal. We will see that one can detect quite well the visible singularities of an internal optical source $f$ for generic anisotropic $k$ and $\sigma$, with or without noise added to the accessible data $X_{V}f$. In particular, we use a truncated Neumann series to estimate $X_{V}$ and $X_{V}^{*}$, which provides a good approximation of $X_{V}^{*…

ta113Applied MathematicsGeneral MathematicsOperator (physics)ta111010102 general mathematicsMathematical analysisMicrolocal analysisNumerical Analysis (math.NA)Inverse problem01 natural sciences35R30 (Primary) 35S05 35R09 35Q20 92C55Neumann series010101 applied mathematicsSobolev spaceMathematics - Analysis of PDEsRadiative transferFOS: MathematicsGravitational singularityMathematics - Numerical Analysis0101 mathematicsAnisotropyMathematicsAnalysis of PDEs (math.AP)
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E-NAUTILUS: A decision support system for complex multiobjective optimization problems based on the NAUTILUS method

2015

Interactive multiobjective optimization methods cannot necessarily be easily used when (industrial) multiobjective optimization problems are involved. There are at least two important factors to be considered with any interactive method: computationally expensive functions and aspects of human behavior. In this paper, we propose a method based on the existing NAUTILUS method and call it the Enhanced NAUTILUS (E-NAUTILUS) method. This method borrows the motivation of NAUTILUS along with the human aspects related to avoiding trading-off and anchoring bias and extends its applicability for computationally expensive multiobjective optimization problems. In the E-NAUTILUS method, a set of Pareto…

ta113Decision support systemMathematical optimizationInformation Systems and ManagementOptimization problemMultiple criteria optimizationGeneral Computer ScienceComputer sciencePareto principleTrading-offManagement Science and Operations ResearchSpace (commercial competition)Multiple objective programmingMulti-objective optimizationIndustrial and Manufacturing EngineeringSet (abstract data type)Modeling and SimulationPoint (geometry)Computational costInteractive methodsEuropean Journal of Operational Research
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LOCAL CONTROL OF SOUND IN STOCHASTIC DOMAINS BASED ON FINITE ELEMENT MODELS

2011

A numerical method for optimizing the local control of sound in a stochastic domain is developed. A three-dimensional enclosed acoustic space, for example, a cabin with acoustic actuators in given locations is modeled using the finite element method in the frequency domain. The optimal local noise control signals minimizing the least square of the pressure field in the silent region are given by the solution of a quadratic optimization problem. The developed method computes a robust local noise control in the presence of randomly varying parameters such as variations in the acoustic space. Numerical examples consider the noise experienced by a vehicle driver with a varying posture. In a mod…

ta113Stochastic domainAcoustics and UltrasonicsComputer scienceApplied MathematicsAcousticsNoise reductionNumerical analysisstokastinen aluekvadraattinen optimointipassenger carFinite element methodhenkilöautoelementtimenetelmäAcoustic spacequadratic optimizationNoiseFrequency domainNoise controlHelmholtz equationQuadratic programmingpaikallinen äänenhallintaäärellisten elementtien menetelmäHelmholtzin yhtälölocal sound controlJournal of Computational Acoustics
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