Search results for " Structure"

showing 10 items of 25475 documents

X-ray microtomography and laser ablation in the analysis of ink distribution in coated paper

2015

A novel method was developed for studying the ink-paper interface and the structural variations of a deposited layer of ink. Combining high-resolution x-ray tomography with laser ablation, the depth profile of ink (toner), i.e., its varying thickness, could be determined in a paper substrate. X-ray tomography was used to produce the 3D structure of paper with about 1 lm spatial resolution. Laser ablation combined with optical imaging was used to produce the 3D structure of the printed layer of ink on top of that paper with about 70 nm depth resolution. Ablation depth was calibrated with an optical profilometer. It can be concluded that a toner layer on a light-weight-coated paper substrate …

tomografiakuva-analyysitopografiaSurface structureLaser ablation
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Evaluación de signos tomográficos no exudativos en casos de degeneración macular asociada a la edad de tipo exudativo

2019

Objetivo: analizar la prevalencia de signos tomográficos no exudativos (onion sign, pseudoswelling, tubulación de la retina externa (ORT), pseudoquistes, subretinal clefts y atrofia macular) en pacientes con degeneración macular asociada a la edad (DMAE) neovascular. Material y métodos: 174 ojos de pacientes con DMAE neovascular que no habían recibido tratamiento previo fueron incluidos en el estudio. Se valoró la agudeza visual, el espesor central de la retina, la actividad de la neovascularización (NV) y la aparición o no de los distintos signos objeto de estudio en los tiempos 0 (visita inicial), 4 meses, 1 año, año y medio y a los 2 y 3 años de seguimiento. Se evaluaron también: la edad…

tomografíaoctgenetic structuresoftalmologíaUNESCO::CIENCIAS MÉDICASdmaesense organs:CIENCIAS MÉDICAS [UNESCO]eye diseases
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A survey on algebraic dilatations

2023

In this text, we wish to provide the reader with a short guide to recent works on the theory of dilatations in Commutative Algebra and Algebraic Geometry. These works fall naturally into two categories: one emphasises foundational and theoretical aspects and the other applications to existing theories.

torsorsaffine modificationsdifferential Galois groupsformal blowupsNéron blowups[MATH] Mathematics [math]Commutative Algebra (math.AC)shtukasMathematics - Algebraic Geometryaffine blowupsFOS: Mathematicsalgebraic dilatations[MATH]Mathematics [math]Algebraic Geometry (math.AG)multi-centered dilatationsdilatations of schemesA 1 -homotopy theoryKaliman-Zaidenberg modificationslevel structuresMoy-Prasad isomorphismrepresentations of p-adic groupsMathematics - Commutative Algebramono-centered dilatationslocalizations of ringscongruent isomorphismsTannakian groupsaffine geometry
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Siracusa e la Sicilia nel III secolo a.C.: problemi conoscitivi e proposte di lettura dei fenomeni urbanistici e architettonici

2017

L’evoluzione sotto il profilo urbanistico e architettonico delle città di Sicilia nel III secolo a.C. può essere compresa solo a partire da un esame delle evidenze di Siracusa, la maggiore città dell’Occidente greco-ellenistico e capitale di un regno che sotto Agatocle e soprattutto sotto Ierone II vede un prodigioso sviluppo non solo per l’estensione dell’area urbana, ma soprattutto per la riconfigurazione dello spazio cittadino in forme innovative, destinate a influenzare in maniera decisiva anche le città minori del regno e dell’Oriente dell’isola, e successivamente anche dei comprensori centro-occidentali e settentrionali. L’aspetto più importante e programmatico nella rimodulazione del…

town planning Stadtbild civic space architecture Syracuse Hieron II Sicily Sicilian towns Hellenistic models and modes social structure 3rd century BCSettore L-ANT/07 - Archeologia Classicaurbanistica e immagine urbana spazi civici e santuari architettura Siracusa Ierone II Sicilia città della Sicilia modelli e mode ellenistiche struttura sociale III secolo a.C.
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CCDC 169925: Experimental Crystal Structure Determination

2001

Related Article: B.Abouhamza, M.Ait Ali, S.Allaoud, O.Blacque, B.Frange, A.Karim|2001|Acta Crystallogr.,Sect.C:Cryst.Struct.Commun.|57|796|doi:10.1107/S0108270101006187

trans-(eta^6^-7-chloro-3-(3-chloro-2-methylphenyl)-248-trimethyl-1234-tetrahydro-24-dibora-13-diazanaphthalene)-tricarbonyl-chromium(0)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1449803: Experimental Crystal Structure Determination

2017

Related Article: M. Saccone, A. Siiskonen, F. Fernandez-Palacio, A. Priimagi, G. Terraneo, G. Resnati, P. Metrangolo|2017|Acta Crystallogr.,Sect.B:Struct.Sci.,Cryst.Eng. and Mat.|73|227|doi:10.1107/S2052520617003444

trans-1-[4-(dodecyloxy)phenyl]-2-(2356-tetrafluoro-4-iodophenyl)diazeneSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 655685: Experimental Crystal Structure Determination

2008

Related Article: H.V.Ly, H.M.Tuononen, M.Parvez, R.Roesler|2008|Angew.Chem.,Int.Ed.|47|361|doi:10.1002/anie.200703556

trans-26-Dimethyl-1357-tetraphenyltetrahydro-1H5H-[1235]diazadiborolo[12-a][1235]diazadiboroleSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 145029: Experimental Crystal Structure Determination

2001

Related Article: G.Haufe, T.C.Rosen, O.G.J.Meyer, R.Frohlich, K.Rissanen|2002|J.Fluorine Chem.|114|189|doi:10.1016/S0022-1139(02)00040-4

trans-2-Fluoro-2-phenylcyclopropanecarboxylic acidSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 781063: Experimental Crystal Structure Determination

2010

Related Article: I.Bergner, C.Wiebe, N.Meyer, T.Opatz|2009|J.Org.Chem.|74|8243|doi:10.1021/jo901759u

trans-5-(1-Benzofuran-2-yl)-3-phenyl-34-dihydro-2H-pyrrole-2-carbonitrileSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 175409: Experimental Crystal Structure Determination

2003

Related Article: R.F.Winter, S.Hartmann, S.Zalis, K.W.Klinkhammer|2003|Dalton Trans.||2342|doi:10.1039/b211774f

trans-Chloro-(3-(N-benzyl-N-methylamino)buta-12-dienylidene)-bis(bis(diphenylphosphino)methane-PP')-ruthenium hexafluoroantimonateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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