Search results for "Trap"

showing 10 items of 2144 documents

PAN-AFRICAN MOBILE BELTS AS EVIDENCE FOR A TRANSITIONAL TECTONIC REGIME FROM INTRAPLATE OROGENY TO PLATE MARGIN OROGENY

1979

Pan-African belts of the African mainland and the Arabian-Nubian Shield exhibit evolutionary features which are either compatible with intracontinental ensialic development or with plate margin and Wilson cycle tectonics. Some of these belts are discussed and, considered together, they appear to reflect variations in crustal mobility during a transitional tectonic regime from intraplate to plate margin orogeny which lasted some 50. Ma from ca. 1000 Ma to ca. 500 Ma ago.

TectonicsPaleontologyWilson cycleMargin (machine learning)Pan africanEarth scienceShieldIntraplate earthquakeOrogenyGeology
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A New Algorithm for the Retrieval of Sun Induced Chlorophyll Fluorescence of Water Bodies Exploiting the Detailed Spectral Shape of Water-Leaving Rad…

2021

Sun induced chlorophyll fluorescence (SICF) emitted by phytoplankton provides considerable insights into the vital role of the carbon productivity of the earth’s aquatic ecosystems. However, the SICF signal leaving a water body is highly affected by the high spectral variability of its optically active constituents. To disentangle the SICF emission from the water-leaving radiance, a new high spectral resolution retrieval algorithm is presented, which significantly improves the fluorescence line height (FLH) method commonly used so far. The proposed algorithm retrieves the reflectance without SICF contribution by the extrapolation of the reflectance from the adjacent regions. Then, the SICF …

TeledeteccióSpectral shape analysis010504 meteorology & atmospheric sciencesScience0211 other engineering and technologiesExtrapolationAigua Qualitat02 engineering and technologywater quality01 natural sciencesocean colorAtmospheric radiative transfer codesSpectral resolutionChlorophyll fluorescence021101 geological & geomatics engineering0105 earth and related environmental sciencesphotosynthesisQHydroLightFluorescènciaWavelengthOcean colorphytoplanktonRadianceGeneral Earth and Planetary SciencesEnvironmental sciencefluorescencefluorescence; HydroLight; water quality; ocean color; photosynthesis; phytoplankton; ocean productivity; optically active constituents; Sentinel-3; ocean and land color instrumentAlgorithmRemote Sensing
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NOTE SUI LIMICOLI SVERNANTI NELLE ZONE UMIDE COSTIERE DELLA PROVINCIA DI TRAPANI

2016

Notes on wintering waders in the coastal humid zones of province of Trapani (Sicily). The coastal wetlands of Trapani still are of great national importance for migratory and wintering waders despite the dramatic reduction occurred in the last hundred years. During this research the author carried out surveys in coastal wetlands from Trapani to Mazara del Vallo, in order to estimate qualitative and accurate quantitative values of wintering waders. The census includes four winters, from 2012-13 to 2015-16 and was carried out in the months of December and January. Noteworthy is the wintering for three consecutive years of the Terek Sandpiper Xenus cinereus, the wintering of Oystercatcher Haem…

Terek sandpiper Xenus cinereus Oystercatcher Haematopus ostralegus Knot Calidris canutus Turnstone Arenaria interpres wintering shorebirds from 2012/13 to 2015/16 coastal wetlands of Trapani
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CCDC 809141: Experimental Crystal Structure Determination

2011

Related Article: O.Schott, J.Ferrando-Soria, A.Bentama, S.-E.Stiriba, J.Pasan, C.Ruiz-Perez, M.Andruh, F.Lloret, M.Julve|2011|Inorg.Chim.Acta|376|358|doi:10.1016/j.ica.2011.06.039

Tetraphenylarsonium (2-(2-pyridyl)imidazole-NN)-bis(oxalato-OO')-chromium(iii) monohydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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Potentiometric study of the formation of hydroxo complexes of [Cu(terpy)]2+. Synthesis and crystal structure of [Cu(terpy) (H2O)](CF3SO3)2

1992

Two complexes of formula [Cu(terpy)(H2O)](CF3SO3)2 (1) and [Cu(terpy)(OH)]BPh4 (2) (terpy=2,2′∶6′,2″-terpyridine and BPh4=tetraphenylborate anion) have been synthesized and characterized by spectroscopic techniques. The x-ray crystal structure of (1) has been determined by x-ray diffraction. The structure is made up of [Cu(terpy)(H2O)]2+ mononuclear cations plus semi-coordinated CF3SO3 − anions. The coordination geometry around the copper atom is approximately elongated tetragonal octahedral. The oxygen atom of water and the three nitrogen atoms of terpy occupy the equatorial sites whereas the apical ones are filled by trifluoromethanesulphonate oxygen atoms. The formation of hydroxo comple…

TetraphenylborateChemistryStereochemistryMetals and AlloysCrystal structureInorganic ChemistryCrystallographychemistry.chemical_compoundOctahedronX-ray crystallographyMaterials ChemistryMoleculeTerpyridineOrganometallic chemistryCoordination geometryTransition Metal Chemistry
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Phenylation of cationic allylpalladium(II) complexes by tetraphenylborate anion. A mechanistic study

1990

Abstract The mechanism of the reaction of allyl complexes [Pd(η3-2-R′C3H4)(NN′)]+ (NN′ = α-diimine ligand) wiht BPh4− in the presence of activated olefins (ol), yielding the products [Pd(η2-ol)(NN′)] and PhCH2C(R′)CH2, has been investigated. The results are interpreted in terms of extensive association between the cationic substrate and the BPh4− anion in a tight ion-pair, followed by rate-determining phenyl transfer to the palladium center and fast reductive elimination of allylbenzene.

TetraphenylborateLigandOrganic ChemistryCationic polymerizationchemistry.chemical_elementSubstrate (chemistry)PhotochemistryBiochemistryMedicinal chemistryReductive eliminationBOROInorganic Chemistrychemistry.chemical_compoundReaction rate constantchemistryMaterials ChemistryPhysical and Theoretical ChemistryPalladiumJournal of Organometallic Chemistry
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CCDC 245542: Experimental Crystal Structure Determination

2005

Related Article: L.Toma, R.Lescouezec, J.Vaissermann, P.Herson, V.Marvaud, F.Lloret, M.Julve|2005|New J.Chem.|29|210|doi:10.1039/b413473g

Tetraphenylphosphonium (110-phenanthroline)-tetracyano-chromium(iii) methanol solvate monohydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 809140: Experimental Crystal Structure Determination

2011

Related Article: O.Schott, J.Ferrando-Soria, A.Bentama, S.-E.Stiriba, J.Pasan, C.Ruiz-Perez, M.Andruh, F.Lloret, M.Julve|2011|Inorg.Chim.Acta|376|358|doi:10.1016/j.ica.2011.06.039

Tetraphenylphosphonium (2-(2-pyridyl)imidazole-NN)-bis(oxalato-OO')-chromium(iii) monohydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 989261: Experimental Crystal Structure Determination

2014

Related Article: Maria-Gabriela Alexandru, Diana Visinescu, Nadia Marino, Giovanni De Munno, Julia Vallejo, Francesc Lloret, Miguel Julve|2014|Eur.J.Inorg.Chem.||4564|doi:10.1002/ejic.201402190

Tetraphenylphosphonium tricyano-(29-dimethyl-110-phenanthroline)-cobalt(ii) trihydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 155167: Experimental Crystal Structure Determination

2002

Related Article: G.Barone, T.G.Hibbert, M.F.Mahon, K.C.Molloy, I.P.Parkin, L.S.Price, I.Silaghi-Dumitrescu|2001|J.Chem.Soc.,Dalton Trans.||3435|doi:10.1039/b010157p

Tetraphenylphosphonium tris(phenylthiolato)-tin(iv)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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