Relevant bibliographies by topics / SANS a SAXS

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  2. Dissertations / Theses
  3. Books
  4. Book chapters
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Academic literature on the topic 'SANS a SAXS'

Author: Grafiati
Published: 4 June 2021
Last updated: 16 February 2022

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Journal articles on the topic "SANS a SAXS"

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Metwalli, Ezzeldin, Klaus Götz, Tobias Zech, et al. "Simultaneous SAXS/SANS Method at D22 of ILL: Instrument Upgrade." Applied Sciences 11, no. 13 (2021): 5925. http://dx.doi.org/10.3390/app11135925.

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A customized portable SAXS instrument has recently been constructed, installed, and tested at the D22 SANS instrument at ILL. Technical characteristics of this newly established plug-and-play SAXS system have recently been reported (J. Appl. Cryst. 2020, 53, 722). An optimized lead shielding arrangement on the SAXS system and a double energy threshold X-ray detector have been further implemented to substantially suppress the unavoidable high-energy gamma radiation background on the X-ray detector. The performance of the upgraded SAXS instrument has been examined systematically by determining background suppression factors (SFs) at various experimental conditions, including different neutron beam collimation lengths and X-ray sample-to-detector distances (SDDX-ray). Improved signal-to-noise ratio SAXS data enables combined SAXS and SANS measurements for all possible experimental conditions at the D22 instrument. Both SAXS and SANS data from the same sample volume can be fitted simultaneously using a common structural model, allowing unambiguous interpretation of the scattering data. Importantly, advanced in situ/real time investigations are possible, where both the SAXS and the SANS data can reveal time-resolved complementary nanoscale structural information.
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GOYAL, P. S., and V. K. ASWAL. "USE OF SANS AND SAXS IN STUDY OF NANOPARTICLES." International Journal of Nanoscience 04, no. 05n06 (2005): 987–94. http://dx.doi.org/10.1142/s0219581x05003954.

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Small Angle Neutron Scattering (SANS) and Small Angle X-ray Scattering (SAXS), anong other available techniques, are the nost sought after techniques for studying the sizes and shapes of nanoparticles. The contrast between particle and its surrounding is different for X-rays and neutrons. Thus a combined SANS and SAXS study, at times, provides information about the core and the shell structure of nanoparticles. This paper gives an introduction to the techniques of SANS and SAXS and shows results of a study of core-shell structure for a micelle (nanaoparticle of organic material).
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Sato, Nobuhiro, Rina Yogo, Saeko Yanaka, et al. "A feasibility study of inverse contrast-matching small-angle neutron scattering method combined with size exclusion chromatography using antibody interactions as model systems." Journal of Biochemistry 169, no. 6 (2021): 701–8. http://dx.doi.org/10.1093/jb/mvab012.

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Abstract Small-angle neutron scattering (SANS) and small- angle X-ray scattering (SAXS) are powerful techniques for the structural characterization of biomolecular complexes. In particular, SANS enables a selective observation of specific components in complexes by selective deuteration with contrast-matching techniques. In most cases, however, biomolecular interaction systems with heterogeneous oligomers often contain unfavorable aggregates and unbound species, hampering data interpretation. To overcome these problems, SAXS has been recently combined with size exclusion chromatography (SEC), which enables the isolation of the target complex in a multi-component system. By contrast, SEC–SANS is only at a preliminary stage. Hence, we herein perform a feasibility study of this method based on our newly developed inverse contrast-matching (iCM) SANS technique using antibody interactions as model systems. Immunoglobulin G (IgG) or its Fc fragment was mixed with 75% deuterated Fc-binding proteins, i.e. a mutated form of IgG-degrading enzyme of Streptococcus pyogenes and a soluble form of Fcγ receptor IIIb, and subjected to SEC–SANS as well as SEC–SAXS as reference. We successfully observe SANS from the non-deuterated IgG or Fc formed in complex with these binding partners, which were unobservable in terms of SANS in D2O, hence demonstrating the potential utility of the SEC–iCM–SANS approach.
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Ballauff, M. "SAXS and SANS studies of polymer colloids." Current Opinion in Colloid & Interface Science 6, no. 2 (2001): 132–39. http://dx.doi.org/10.1016/s1359-0294(01)00072-3.

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Smarsly, B. M., S. Mascotto, C. Weidmann, and H. Kaper. "Charakterisierung mesoporöser Materialien mittels Kleinwinkelstreuung (SAXS/SANS)." Chemie Ingenieur Technik 82, no. 6 (2010): 823–28. http://dx.doi.org/10.1002/cite.201000075.

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Demé, Bruno. "SAXS and SANS techniques discussed in Grenoble." Neutron News 10, no. 3 (1999): 15. http://dx.doi.org/10.1080/10448639908233682.

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Johansen, Nicolai Tidemand, Martin Cramer Pedersen, Lionel Porcar, Anne Martel, and Lise Arleth. "Introducing SEC–SANS for studies of complex self-organized biological systems." Acta Crystallographica Section D Structural Biology 74, no. 12 (2018): 1178–91. http://dx.doi.org/10.1107/s2059798318007180.

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Small-angle neutron scattering (SANS) is maturing as a method for studying complex biological structures. Owing to the intrinsic ability of the technique to discern between 1H- and 2H-labelled particles, it is especially useful for contrast-variation studies of biological systems containing multiple components. SANS is complementary to small-angle X-ray scattering (SAXS), in which similar contrast variation is not easily performed but in which data with superior counting statistics are more easily obtained. Obtaining small-angle scattering (SAS) data on monodisperse complex biological structures is often challenging owing to sample degradation and/or aggregation. This problem is enhanced in the D2O-based buffers that are typically used in SANS. In SAXS, such problems are solved using an online size-exclusion chromatography (SEC) setup. In the present work, the feasibility of SEC–SANS was investigated using a series of complex and difficult samples of membrane proteins embedded in nanodisc particles that consist of both phospholipid and protein components. It is demonstrated that SEC–SANS provides data of sufficient signal-to-noise ratio for these systems, while at the same time circumventing aggregation. By combining SEC–SANS and SEC–SAXS data, an optimized basis for refining structural models of the investigated structures is obtained.
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KANAYA, Toshiji, Nobuaki TAKAHASHI, Rintaro INOUE, Koji NISHIDA, and Go MATSUBA. "Flow and Deformation-induced Polymer Crystallization by SANS and SAXS." Nihon Kessho Gakkaishi 57, no. 1 (2015): 27–33. http://dx.doi.org/10.5940/jcrsj.57.27.

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Allen, A. "SAXS and SANS for industrial materials-by-design." Acta Crystallographica Section A Foundations of Crystallography 67, a1 (2011): C29—C30. http://dx.doi.org/10.1107/s0108767311099399.

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Kajiwara, Kanji. "Structural Characterization of Gels by SAXS and SANS." Kobunshi 42, no. 7 (1993): 600–603. http://dx.doi.org/10.1295/kobunshi.42.600.

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Dissertations / Theses on the topic "SANS a SAXS"

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Dos, Santos Morais Raphael. "Interaction dystrophine-membrane : structure 3D de fragments de la dystrophine en présence de phospholipides." Thesis, Rennes 1, 2017. http://www.theses.fr/2017REN1B062/document.

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La dystrophine est une grande protéine membranaire périphérique qui assure un rôle de soutien du sarcolemme permettant aux cellules musculaires de résister aux stress mécaniques engendrés lors des processus de contraction/élongation. Des mutations génétiques conduisent à sa production sous forme tronquée voire à un déficit total en protéine engendrant de sévères myopathies actuellement incurables. Concevoir des thérapies adaptées passe par une meilleure compréhension du rôle biologique de la dystrophine. Par une approche structure/fonction, notre objectif est de déterminer les bases moléculaires impliquées dans les interactions de la dystrophine avec les lipides membranaires du sarcolemme. Grâce à une approche de diffusion aux petits angles (SAXS et SANS) combinée à de la modélisation moléculaire, nous montrons dans un premier temps que les bicelles constituent un modèle expérimental particulièrement adapté aux analyses de structures de protéines qui y sont associées. Ce développement méthodologique original a été exploité dans un deuxième temps pour caractériser les modifications structurales subies par la dystrophine lorsqu’elle interagit avec les lipides. Nous montrons particulièrement que la liaison aux lipides induit l’ouverture significative de la structure en triple hélice « coiled-coil » de la répétiton 1 du domaine central, et proposons en conclusion un modèle tout atome de la protéine en présence de bicelles. Ces travaux de thèse (i) constituent un apport méthodologique significatif pour l’étude de protéines membranaires, (ii) contribuent à une meilleure compréhension du rôle biologique de la dystrophine en vue de thérapies dédiées aux patients atteints de myopathies<br>Dystrophin is a large peripheral membrane protein that provides a supporting role for sarcolemma allowing muscle cells to withstand the mechanical stresses generated during contraction / elongation processes. Genetic mutations lead to dystrophin production in truncated form or even to a total deficit in the protein leading to severe myopathies currently incurable. Designing adapted therapies requires a huge knowledge of the biological role of dystrophin. Using a structure / function approach, our aim is to determine the molecular bases involved in the interactions of dystrophin with the membrane lipids of the sarcolemma. Using a small-angle scattering approach (SAXS and SANS) combined with molecular modeling, we show that bicelles constitute a versatile membrane mimic that is particularly adapted to analyze the structure of membrane proteins. This original methodological development was exploited to characterize the structural changes undergone by dystrophin upon lipid binding. We highlight in particular that the lipid binding induces a significant opening of the coiled-coil structure of the repeat 1 of the central domain and, in conclusion, we propose an all-atom model of the protein bound to a bicelle. These thesis works (i) constitute a significant methodological contribution for the study of membrane proteins, (ii) contribute to a better understanding of the biological role of dystrophin for therapies dedicated to patients with myopathies
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Gouin, Jean-Pierre. "Morphology of block ionomers : a study by SAXS and SANS." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41023.

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The solid state morphology of block copolymers containing short ionic terminal sequence(s) was investigated using small-angle X-ray and neutron scattering (SAXS and SANS) as a function of architecture (AB, ABA), chemical composition of the ionic block(s) (vinylpyridinium, cesium methacrylate), length of the ionic and nonionic (polystyrene) blocks, extent of neutralization, and method of preparation (compression molding, solvent casting). The ionic phase-separated microdomains were found to be spherical. The radius of those spheres depends only on the length of the ionic block and not on any other of the parameters studied. The only exceptions were the molded ABA vinylpyridinium materials which were thought not to be in their equilibrium morphology due to the method of preparation. The ionic blocks seem highly extended in their microdomains. This is explained by the fact that the system is producing the biggest possible spheres in order to minimize the total interfacial energy. It was also found that the AB architecture and the preparation by solvent casting favor ordering of the microdomains.<br>The conformation of the polystyrene midblock in ABA vinylpyridinium materials in the solid phase was studied by SANS. The dimensions of this segment were clearly found to be identical to a homopolymer of the same molecular weight, indicating that no stretching occurs due to the presence of the two attached ionic blocks.
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Georgiades, Pantelis. "Mucin structure and mucosal transport of polyphenols." Thesis, University of Manchester, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.617960.

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The rheological and structural characteristics of gastric (MUC5AC) and duodenal (MUC2) mucin solutions, the structural basis of the adherent mucus layer in the two organs, and their interactions with polyphenols, the phytochemicals which are linked with a number of health benefits, were investigated using particle tracking microrheology and scattering techniques. We used biochemically well characterised porcine mucins as models for human mucins to characterise their viscoelasticity, structure and dynamics as a function of concentration and pH. Additionally, the mesoscopic forces that mediate the integrity of the network were investigated using reducing (dithiothreitol) and chaotropic agents (guanidinium chloride and urea). Mucins in solution were found to be flexible and three distinct viscoelastic regimes were identify ed. At neutral pH, both types of mucin were found to form flexible self-assembled semi-dilute networks above a critical concentration (c*) where the viscosity scales as c 0.53+-0.08 and c 0.53 +-0.06 for MUC5AC and MUC2 respectively. Above a second critical concentration, the entanglement concentration (Ce), the peptide backbones reptate and entangle and there is a sharp increase in viscosity, c 3.92+- 0.38 for MUC5AC and c 5.1 0+-0.08 for MUC2. At low pH, both types of mucin solution undergo a sol-gel transition, forming pH-switchable gels. The addition of tea-derived polyphenols and tea extracts to the mucin solutions has revealed the strong interaction of galloylated phenolic molecules with mucins, which eventually leads to the gelation of the solution. Cross-linking of mucins by galloylated polyphenols is thus expected to have an impact on the physicochemical environment of the stomach and small intestine; the alteration of the organisation of the mucin polymer network is expected to modulate the barrier properties of the two adherent mucus layers which will affect nutrient absorption and the viscoelastic microenvironment of intestinal bacteria.
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Xie, Fangning. "Real-time SAXS and SANS studies of lamellar superlattices in linear and branched long alkanes." Thesis, University of Sheffield, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.500158.

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Rabe, Christian. "Structural investigations using small angle scattering techniques and contrast variation." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2015. http://dx.doi.org/10.18452/17180.

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Die Analyse der Röntgen- und Neutronenkleinwinkelstreuung stellt ein ideales Werkzeug für Untersuchungen der Struktur submikroskopischer Teilchen und deren Wechselwirkungen dar. Hierbei eröffnet die Variation des Streukontrastes ein zusätzliches Spektrum an Informationen. Wie in der vorliegenden Arbeit gezeigt wird, kann durch die Verwendung komplementäre Verfahren ein detailliertes Bild der untersuchten Systeme erarbeitet werden. Im Fokus der Diskussion stehen Polyethylennanopartikel und Strukturen basierend auf hyperverzweigtem Polyglycerol. Die durchgeführten Untersuchungen liefern beispielsweise Rückschlüsse auf den Mechanismus, der zu einer nahezu idealen Anordnung unverzweigter Polymerketten, während der Bildung der Polyethylennanopartikel, führt. Im amorphen Anteil dieser plättchenförmigen Partikel findet demnach ausschließlich eine Richtungsänderung beim Wiedereintritt der Polymerketten in die kristalline Phase statt, wodurch eine ungehinderte Kettendiffusion möglich ist. Der Einfluss von Defekten entlang der Polymerkette auf die Partikelstruktur konnte durch Untersuchungen eines präzise verzweigten Polyethylens ermittelt werden. Bei weiteren Untersuchungen von wässrigen Dispersionen eines hyperverzweigten Polyglycerols konnte die übergeordnete Struktur als Fraktal beschrieben werden. Der signifikante Beitrag der Mikrostrukturierung des Moleküls zu dessen Kleinwinkelstreuung wurde in den Analysen berücksichtigt. Die Strukturuntersuchungen von Molekülen mit dem polaren hyperverzweigten Kern und einer nahezu vollständigen Funktionalisierung durch bipolare Ketten profitierte von diesen Ergebnissen. Hierbei wurde die Struktur dieser Moleküle in polaren und unpolaren Medien ermittelt. In einer polaren Umgebung wurde die Bildung von Assoziaten beschrieben. Dies liefert wertvolle Hinweise auf die Wirkungsweise als Wirkstofftransportsystem liefert.<br>The analysis of the small angel X-Ray and neutron scattering is an ideal tool for the discussion of the structure and interactions of submicroscopic particles. Herein, the variation of the scattering contrast enlarges the spectrum of information, additionally. As shown in the presented work, complementary probes give a detailed picture of the investigated systems. The focal point of the discussion is set on polyethylene nanoparticles and structures based on hyperbranched polyglycerol. The analyses provide, for instance, information on the mechanism that leads to an ideal arrangement of the non-branched polymer chains during the formation of the platelet-like polyethylene nanoparticles. The amorphous phase exclusively hosts the redirection of the polymer chains into the crystalline domain. This allows the unimpeded chain diffusion. The effect of defects along the polymer chain on the particle structure was studied by the analyses of polyethylene with precisely placed methyl groups. Analyses of aqueous dispersions of hyperbranched polyglycerol reveal the fractal-like character of the global molecule structure. Additionally, the significant contribution of the molecule’s microstructure to the corresponding small angle scattering was considered. The analyses of molecules composed of the hyperbranched core and a complete functionalisation with bipolar chains profited from these results. Hereby, the molecule structure in polar and non-polar media was identified. In polar surrounding the formation of well-defined aggregates was described. This provides essential information for a further discussion of this type of molecules as drug delivery platform.
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Brusselle, Damien. "Auto-assemblage de métallacarboranes en solution aqueuse : un nouveau type de tensioactif." Thesis, Montpellier 2, 2013. http://www.theses.fr/2013MON20094/document.

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Les métallacarboranes sont des clusters anioniques constitués d'atomes de bore, de carbone et d'hydrogène avec un cation métallique pris en « sandwich » au cœur de ce cluster (Co3+ en général) et hautement stable thermiquement que chimiquement. Ces entités sont représentées trivialement par la lettre grecque « thêta » où leurs pôles sont considérés comme hydrophobes et possèdent une charge négative délocalisée qui peut être contre balancée par un proton acide. Cette forte stabilité ainsi que ces diverses propriétés leur procurent un intérêt particulier dans des applications telles que la co-extraction du Cs et Sr dans les effluents nucléaires ou bien en médecine pour leur aptitude à inhiber la protéase du VIH de par ses liaisons hydrogènes. La chimie du bore étant relativement riche, une synthèse de quelques dérivés a été réalisée en laboratoire. Il est ainsi possible de substituer spécifiquement des atomes d'hydrogène par des atomes d'iode ou de chlore ou bien de changer le métal central par un cation Fe3+ formant respectivement les anions diiodo-COSAN (I2COSAN), dichloro-COSAN (Cl2COSAN) et ferrabisdicarbollide (FESAN). Ces métallacarboranes sont aussi considérés comme une nouvelle classe de tensioactif pour lesquels une première étude de leur auto-assemblage a été réalisée. Les résultats obtenus sur l'un d'entre eux, le cobaltabisdicarbollide ou COSAN, ont montré un effet sur la tension de surface ainsi qu'une structuration spontanée de ces clusters en forme de vésicule (à partir de 0,5 mmol/L) et par interaction Coulombienne, tendent à former des micelles à plus forte concentration (après 15 mmolL). Mais ces derniers offrent davantage de surprise de par la formation de phases lyotropes en solution aqueuse. En effet, ces phases, clairement identifiées par des techniques de diffusion au rayon-X et microscopie, montrent une dépendance en température mais aussi en concentration dont un diagramme de phase a pu être établi pour le I2COSAN en particulier. Cette thèse fait ainsi l'objet de la compréhension des phénomènes contrôlant cette agrégation de ces curieux composés<br>Metallacarboranes are anionic clusters composed of boron, carbon and hydrogen with a metallic cation sandwiched at the heart of this cluster (Co3+ in general) and highly stable in thermic and chemical point of view. These entities are trivially represented by the Greek letter "theta" where the poles are considered hydrophobic and have a negative charge delocalized and counter-balanced by an acidic proton. This high stability as well as the various properties gives a particular interest in applications such as the co-extraction of Cs and Sr in nuclear waste or in medicine for their ability to inhibit HIV protease by its hydrogen bonds. The chemistry of boron is relatively rich; a synthesis of some derivatives was performed in laboratory. It is possible to substitute specifically hydrogen by iodine or chlorine atoms or change the metallic heart by other atom as Fe3+, respectively forming diiodo- COSAN (I2COSAN), dichloro-COSAN (Cl2COSAN) and ferrabisdicarbollide (FESAN) anions. Metallacarboranes are also considered as a new class of surfactant where a first study of their self-assembly has been performed. The results of one of them, cobaltabisdicarbollide or COSAN, have shown an effect at the surface tension and theses clusters formed spontaneously vesicles in dilute regime (from 0.5 mmol/L) and by Coulomb interactions, they form micelles at higher concentration (after 15 mmol/L). But they offer more surprise by the formation of lyotropic phases in aqueous solution. Indeed, these phases, clearly identified by X-ray scattering techniques and microscopy, showed temperature and concentration dependence where a phase diagram was established for the I2COSAN in particular. Therefore, the thesis is focused on the understanding of the phenomena controlling the aggregation of these curious compounds
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Eyssautier, Joëlle. "Caractérisation et Modélisation des Asphaltènes en Conditions Réactionnelles d'Hydrotraitement." Palaiseau, Ecole polytechnique, 2012. http://pastel.archives-ouvertes.fr/docs/00/66/69/75/PDF/ThA_se_Joelle_Eyssautier_2012_pour_impression.pdf.

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Les bruts lourds et extra-lourds ainsi que les résidus pétroliers issus des étapes de distillation constituent une réserve énergétique importante, alors que l'offre en pétroles légers s'appauvrit. Ces produits sont chargés en molécules lourdes et nécessitent des étapes de raffinage élaborées pour être convertis et valorisés. Une des limitations actuelles de ces procédés est la faible mobilité, au sein du réseau poreux des catalyseurs, des molécules auto-associées les plus lourdes : les asphaltènes. L'examen d'une littérature abondante montre que le comportement d'agrégation de ces espèces reste sujet à débat. Pour décrire et comprendre l'agrégation de ces molécules complexes, particulièrement dans les conditions de température des procédés, la diffusion de rayonnement a constitué la principale technique expérimentale de cette étude pour observer les systèmes colloïdaux sur une échelle de taille étendue (1 nm - 1 μm). La complémentarité des sondes (neutrons/rayons X/lumière, ainsi que statique/dynamique) a permis d'améliorer la sélectivité des modèles. Dans un premier temps, une étude approfondie des asphaltènes en solvants modèles a été menée pour décrire finement les différents états d'agrégation : des nanoagrégats de molécules sous la forme d'un disque plat organisés en coeur aromatique/couronne aliphatique s'associent en clusters polydisperses présentant une structure fractale. Dans un deuxième temps, ce schéma d'organisation a pu être étendu aux résidus de distillation. L'étude de fractions issues de nanofiltration a permis de montrer que ces fluides complexes sont assimilables à une suspension de particules. Leur comportement à haute température (300°C) a montré que si les clusters se dissocient à haute température, les nanoagrégats subsistent. Le schéma d'organisation et son évolution avec la température est en bon accord avec les variations de viscosité observées. Par la description approfondie de l'organisation colloïdale de ces systèmes en condition d'usage, les étapes de transport et de raffinage des produits pétroliers seront mieux appréhendées<br>Due to a high energy demand, the petroleum industry has to focus on low quality products such as heavy oils and distillation residua, to be transformed into valuable fractions. These products show difficulties to be converted during hydrotreating processes because of their asphaltene content, which are heavy molecules with peculiar aggregation properties. Small angle scattering techniques (X rays, neutrons and light) were used to characterize the system on a wide length scale (1 nm - 1 μm). Asphaltenes in model solvents were first investigated to refine the description of nanoaggregates made of core/shell discs, organized at a larger length scale into polydisperse fractal clusters. This colloidal approach was then adapted to study the asphaltenes in processing conditions. A nanofiltration process has been performed, and the structural study of the fractions made evidence that the system is a colloidal suspension of particles. The behavior through temperature elevation depends on the length scale of interest: while clusters are sensitive to temperature, nanoaggregates persist at 300°C. The hierarchical aggregation scheme enables predicting viscosity behaviors through temperature and concentration variations. These findings on structural organization and characteristic particle sizes near processing temperatures improve the knowledge required for heavy oil transport, hydroconversion process and catalyst design
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Shriky, Banah. "Thermosensitive Injectable Pluronic Hydrogels for Controlled Drug Release: Characterisation of thermal, rheological and structural properties of injectable pharmaceutical formulations." Thesis, University of Bradford, 2018. http://hdl.handle.net/10454/17364.

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This study seeks to develop smart hydrogel formulations for injectable controlled drug delivery from Pluronics to enhance patients compliance, decrease side effects, reduce dose and frequency. A biocompatible copolymer, Pluronic F127 was probed as the main ingredient for the injectable systems owing its low gelation concentration and ease of modification the system properties through excipients addition. The matrix properties were studied through a series of thermal, rheological and structural (SAXS/SANS) experiments as a function of concentration and shear rate, covering both static and dynamic environments. It has shown that gelled viscosity (and structure) can be critically controlled by shear rate and the structures recorded do not match those predicted for sheared colloids. Two further Pluronics F68 and F108, were studied showing similar but shifted gelation properties to F127. Effects of additives were studied by introducing different Mw PEGs and a model hydrophobic drug ‘ibuprofen’ to a F127 20% formulation. PEGs addition effects on the system properties and gelation transition were largely dependent on the Mw used in the blend, which became more prominent with increasing chain length. Ibuprofen’s addition has resulted in reduced gelation temperature and smaller hard spheres without having a great effect on the system rheological properties compared to neat gels. Blends containing both additives PEG and ibuprofen exhibited a synergistic effect, where comparisons show that Ibuprofen had the largest effect on the blends lowering gelation boundaries and slightly increasing the size of the hard spheres indicating the necessity of full characterisation of the formulation with any API.
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Masson, Soizic. "Etude structurale d'un complexe de trois protéines de la division du pneumocoque, DivIB, DivIC et FtsL." Phd thesis, Université Joseph Fourier (Grenoble), 2008. http://tel.archives-ouvertes.fr/tel-00352348.

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FtsL, DivIC et DivIB sont trois protéines membranaires impliquées dans la division bactérienne. Leur fonction n'est pas totalement comprise, mais semble mutuellement dépendante, notamment à travers la formation de complexes. Pour contribuer à la connaissance structurale des protéines de la division bactérienne et apporter des indices sur la fonction des trois protéines citées, une étude structurale a été menée sur un système modèle de protéines recombinantes solubles de S. pneumoniae: FtsL, DivIC et DivIB. La partie extracellulaire de DivIB, un complexe contraint des parties extracellulaires de FtsL et DivIC, et l'interaction entre ce complexe et la partie extracellulaire de DivIB ont été étudiés par plusieurs techniques biophysiques (RMN, SAXS, SANS, BIA par SPR). La partie extracellulaire de DivIB est composée de trois domaines dont le domaine central est structuralement proche de son orthologue chez E. coli, et interagit avec un complexe des parties extracellulaires de DivIC et FtsL, via ce domaine central. Un épitope d'interaction sur ce domaine a été identifié. Les domaines C-terminaux de FtsL et divIC sont essentiels à l'interaction avec la partie extracellulaire de DivIB. Un modèle à basse résolution du complexe de ces trois protéines présente en effet le domaine central de la partie extracellulaire de DivIB à l'extrémité du complexe des parties extracellulaires de DivIC et FtsL. Différents modèles d'association dans la cellule, des protéines DivIB, DivIC et FtsL ont été évalués avec ces nouvelles données structurales.
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Muthig, Michael [Verfasser], Michael [Akademischer Betreuer] Gradzielski, and Julian [Akademischer Betreuer] Oberdisse. "Complex SANS/SAXS data evaluation, simulation and interpretation with regard to statistical inference / Michael Muthig. Gutachter: Michael Gradzielski ; Julian Oberdisse. Betreuer: Michael Gradzielski." Berlin : Technische Universität Berlin, 2015. http://d-nb.info/1072463431/34.

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Books on the topic "SANS a SAXS"

1

Baricco, Alessandro. Sans sang. Gallimard, 2007.

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Saint-Pierre, Annette. Sans bon sang. Les Editions de Plaines, 1987.

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Lʼempire Ledea: Une révolution sans armes, sans larmes et sans sang : biographie. Harmattan Burkina, 2013.

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Mendelsohn, Robert S. Des enfants sains ... même sans médecin. Editions Soleil, 1987.

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Sans bruit, sans trace. Gallimard, 2011.

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Cupillard, Valerie. Cuisinez gourmand sans gluten, sans lait, sans oeufs--. Prat éditions, 2012.

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Sans carte, sans boussole, sans équipement: Huit nouvelles pièces. Éditions théâtrales, 2010.

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Mortier, Laurence. Sans lait et sans se priver. Anagramme e d., 2010.

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Groupe d'information et de soutien des travailleurs immigrés (Paris, France). Sans-papiers mais pas sans droits. 3rd ed. GISTI, 2004.

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Bronsard, Daniel. Mangez sans sucre et sans levure. Caractère, 2010.

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Book chapters on the topic "SANS a SAXS"

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Hansen, Steen. "Bayesian Methods in SAXS and SANS Structure Determination." In Statistics for Biology and Health. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27225-7_13.

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Kajiwara, Kanji, Shinzo Kohjiya, Mitsuhiro Shibayama, and Hiroshi Urakawa. "Characterization of Gel Structure by Means of SAXS and SANS." In Polymer Gels. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-5892-3_1.

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Angelova, Angelina, Borislav Angelov, Rada Mutafchieva, et al. "Swelling of a Sponge Lipid Phase via Incorporation of a Nonionic Amphiphile: SANS and SAXS Studies." In Trends in Colloid and Interface Science XXIV. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19038-4_1.

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Barré, Loïc. "Contribution of Small-Angle X-Ray and Neutron Scattering (SAXS and SANS) to the Characterization of Natural Nanomaterials." In X-ray and Neutron Techniques for Nanomaterials Characterization. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-48606-1_12.

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Bährle-Rapp, Marina. "sans." In Springer Lexikon Kosmetik und Körperpflege. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_9106.

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Zhu, Yimei, Hiromi Inada, Achim Hartschuh, et al. "SANS." In Encyclopedia of Nanotechnology. Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-90-481-9751-4_100720.

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Bauer, B. J., and E. J. Amis. "Characterization of Dendritically Branched Polymers by Small Angle Neutron Scattering (SANS), Small Angle X-Ray Scattering (SAXS) and Transmission Electron Microscopy (TEM)." In Dendrimers and Other Dendritic Polymers. John Wiley & Sons, Ltd, 2002. http://dx.doi.org/10.1002/0470845821.ch11.

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Shin, Yong-Jun, Eunho Cho, and Doo-Hwan Bae. "PASTA: An Efficient Proactive Adaptation Approach Based on Statistical Model Checking for Self-Adaptive Systems." In Fundamental Approaches to Software Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71500-7_15.

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AbstractProactive adaptation, in which the adaptation for a system’s reliable goal achievement is performed by predicting changes in the environment, is considered as an effective alternative to reactive adaptation, in which adaptation is performed after observing changes. When predicting the environmental changes, the prediction may be uncertain, so it is necessary to verify and confirm an adaptation’s consequences before execution. To resolve the uncertainty, probabilistic model checking (PMC) has been utilized for verification of adaptation tactics’ effects on the goal of a self-adaptive system (SAS). However, PMC-based approaches have limitations on the state-explosion problem of complex SAS model verification and the modeling languages supported by the model checkers. In this paper, to overcome the limitations of the PMC-based approaches, we propose an efficient Proactive Adaptation approach based on STAtistical model checking (PASTA). Our approach allows SASs to mitigate the uncertainty of the future environment, faster than the PMC-based approach, by producing statistically sufficient samples for verification of adaptation tactics based on statistical model checking (SMC) algorithms. We provide algorithmic processes, a reference architecture, and an open-source implementation skeleton of PASTA for engineers to apply it for SAS development. We evaluate PASTA on two SASs using actual data and show that PASTA is efficient comparing to the PMC-based approach. We also provide a comparative analysis of the advantages and disadvantages of PMC- and SMC-based proactive adaptation to guide engineers’ decision-making for SAS development.
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Unschuld, Paul U. "Théologie sans Theos." In Approches occidentales et orientales de la guérison. Springer Paris, 2012. http://dx.doi.org/10.1007/978-2-8178-0330-2_89.

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Rybak, Stephanie. "Partir sans problème." In Further French. Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-10571-7_7.

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Conference papers on the topic "SANS a SAXS"

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Nadaf, R., B. Kutty, J. Narayanan, et al. "Flocculation of SDS micelles with Al3+: SANS, SAXS and TEM study." In NANOFORUM 2014. AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4917626.

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Mischenko, N., K. Reynders, and H. Reynaers. "Morphology of physical polymer gels as observed by SAXS and SANS." In X-Ray Investigations of Polymer Structures, edited by Andrzej Wlochowicz, Jaroslaw Janicki, and Czeslaw Slusarczyk. SPIE, 1997. http://dx.doi.org/10.1117/12.267197.

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Inada, Takumi, Sataru Ueda, Yohei Noda, Tomoki Maeda, Kiyoshi Kanie, and Satoshi Koizumi. "Micellar Structure of Perfluorooctanesulfonic Acid in Water Investigated by Combination of SAXS and SANS." In Proceedings of the 3rd International Symposium of Quantum Beam Science at Ibaraki University "Quantum Beam Science in Biology and Soft Materials (ISQBSS2018)". Journal of the Physical Society of Japan, 2019. http://dx.doi.org/10.7566/jpscp.25.011019.

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Hasegawa, H., Abarrul Ikram, Agus Purwanto, et al. "SANS and SAXS Study of Block and Graft Copolymers Containing Natural and Synthetic Rubbers." In NEUTRON AND X-RAY SCATTERING 2007: The International Conference. AIP, 2008. http://dx.doi.org/10.1063/1.2906096.

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Iwase, Hiroki, Nara Karyn Kawano, Kazuhiro Akutsu, and Tomokazu Yoshimura. "SANS and SAXS Studies on the Aggregates Properties of A Gemini-Type Amphiphilic Dendrimer in Solution." In Proceedings of the 2nd International Symposium on Science at J-PARC — Unlocking the Mysteries of Life, Matter and the Universe —. Journal of the Physical Society of Japan, 2015. http://dx.doi.org/10.7566/jpscp.8.033012.

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Zhabitskaya, E., E. Zemlyanaya, M. Kiselev, et al. "Parallel asynchronous differential evolution method for the SAXS/SANS analysis of the PTNS-based vesicles structure." In APPLICATION OF MATHEMATICS IN TECHNICAL AND NATURAL SCIENCES: 10th International Conference for Promoting the Application of Mathematics in Technical and Natural Sciences - AMiTaNS’18. Author(s), 2018. http://dx.doi.org/10.1063/1.5064943.

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Akutsu, Kazuhiro, Hiroki Iwase, Yuka Nakatani, and Tomokazu Yoshimura. "Structural Study of a Gold Nanoparticle/Sugar-type Surfactant Complex by SANS, SAXS, TEM, and EXAFS Techniques." In Proceedings of the 2nd International Symposium on Science at J-PARC — Unlocking the Mysteries of Life, Matter and the Universe —. Journal of the Physical Society of Japan, 2015. http://dx.doi.org/10.7566/jpscp.8.033011.

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He, Fei, Yaxuan Qi, Yibo Xue, and Jun Li. "SANS." In the 5th ACM/IEEE Symposium. ACM Press, 2009. http://dx.doi.org/10.1145/1882486.1882532.

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Porto, D. B., and B. A. Beltrão. "Validation of SAPS-3 Score as a Mortality Predictor in SARS-CoV-2 Patients." In American Thoracic Society 2021 International Conference, May 14-19, 2021 - San Diego, CA. American Thoracic Society, 2021. http://dx.doi.org/10.1164/ajrccm-conference.2021.203.1_meetingabstracts.a3796.

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Parisot, Charline, Jérémy Cissé, Fioretta Caterina Cosmidis, Flore Allier-Estrada, Maud Lemaître-Blanchart, and Ludovic Abraham. "Sans gravité." In SA '18: SIGGRAPH Asia 2018. ACM, 2018. http://dx.doi.org/10.1145/3278625.3278659.

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Reports on the topic "SANS a SAXS"

1

Spooner, S., G. M. Ludtka, J. S. Bullock, R. L. Bridges, and G. L. Powell. SANS Measurement of Hydrides in Uranium. Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/789605.

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Austin, Thomas. SAMS Research and Development. Defense Technical Information Center, 2008. http://dx.doi.org/10.21236/ada484674.

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Damianos, Laurie E., Samuel Bayer, Michael A. Chisholm, et al. MiTAP for SARS Detection. Defense Technical Information Center, 2006. http://dx.doi.org/10.21236/ada456191.

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Beck, Steve, and Joe Reynolds. Sensor Agent Processing Software (SAPS). Defense Technical Information Center, 2004. http://dx.doi.org/10.21236/ada423980.

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Cook, B. Brookhaven synchrotron WAXS and SAXS studies of Kel-F 800. Office of Scientific and Technical Information (OSTI), 1999. http://dx.doi.org/10.2172/15001994.

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Cline, Joseph I. Surface Absorption Polarization Sensors (SAPS), Final Technical Report, Laser Probing of Immobilized SAPS Actuators Component. Office of Scientific and Technical Information (OSTI), 2010. http://dx.doi.org/10.2172/977056.

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Ly, Hoa, Dianna Pearsall, and Tamara Trank. SAMS Epidemiological Wizard (EPIWIZ) User's Guide. Defense Technical Information Center, 2000. http://dx.doi.org/10.21236/ada400379.

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Kapil, Sanjay, R. D. Oberst, Jill Marie Bieker, Mark David Tucker, Caroline Ann Souza, and Cecelia Victoria Williams. Rapid inactivation of SARS-like coronaviruses. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/918739.

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Kesavan, Jana, Deborah Schepers, Tiffany Sutton, Paul Deluca, Michael Williamson, and Daniel Wise. Characteristics Sampling Efficiency and Battery Life of Smart Air Sampler System (SASS) 3000 and SASS 3100. Defense Technical Information Center, 2010. http://dx.doi.org/10.21236/ada535252.

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Gallego, Nidia C., Cristian I. Contescu, and Timothy D. Burchell. XRD and SANS evaluation of HOPG and Polycrystalline Graphite. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1458356.

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