Bibliographies thématiques / Calamitic

Littérature scientifique sur le sujet « Calamitic »

Auteur : Grafiati
Publié le 18 mai 2024

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Consultez les listes thématiques d’articles de revues, de livres, de thèses, de rapports de conférences et d’autres sources académiques sur le sujet « Calamitic ».

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Articles de revues sur le sujet "Calamitic"

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Bruce, Duncan W., David A. Dunmur, Lourdes S. Santa et Michael A. Wali. « Mesomorphic metalloporphyrins showing calamitic mesophases ». Journal of Materials Chemistry 2, no 3 (1992) : 363. http://dx.doi.org/10.1039/jm9920200363.

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Petrov, Vladimir F. « Ketonization in Calamitic Liquid Crystals ». Molecular Crystals and Liquid Crystals 432, no 1 (juin 2005) : 29–45. http://dx.doi.org/10.1080/154214090892762.

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Bruce, Duncan W. « High coordination number calamitic metallomesogens ». Advanced Materials 6, no 9 (septembre 1994) : 699–701. http://dx.doi.org/10.1002/adma.19940060920.

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Petrov, Vladimir F. « Alkoxylation in achiral calamitic liquid crystals ». Liquid Crystals 29, no 6 (1 juin 2002) : 805–35. http://dx.doi.org/10.1080/02678290210133114.

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Su, Chaochin, Li-Xiang Lee, Shang-Hsun Yu, Ying-Kai Shih, Jen-Chun Su, Fu-Joun Li et Chung K. Lai. « Heterocyclic 1,2,4-triazoles as calamitic mesogens ». Liquid Crystals 31, no 5 (mai 2004) : 745–49. http://dx.doi.org/10.1080/02678290410001690429.

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Chen, Min-Chou, Shih-Chieh Lee, Chia-Chung Ho, Tarng-Shiang Hu, Gene-Hsiang Lee et Chung K. Lai. « Calamitic metallomesogens derived from unsymmetric pyrazoles ». Tetrahedron 65, no 45 (novembre 2009) : 9460–67. http://dx.doi.org/10.1016/j.tet.2009.08.062.

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Terazzi, Emmanuel, Bernard Bocquet, St?phane Campidelli, Bertrand Donnio, Daniel Guillon, Robert Deschenaux et Claude Piguet. « Encoding calamitic mesomorphism in thermotropic lanthanidomesogens ». Chemical Communications, no 27 (2006) : 2922. http://dx.doi.org/10.1039/b605253c.

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Petrov, Vladimir F., et Yo Shimizu. « Nitro substitution in achiral calamitic liquid crystals ». Liquid Crystals 28, no 11 (novembre 2001) : 1627–47. http://dx.doi.org/10.1080/02678290110074625.

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Petrov, Vladimir F., et Yo Shimizu. « (Iso)Thiocyanato Substitution in Calamitic Liquid Crystals ». Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 363, no 1 (juillet 2001) : 107–21. http://dx.doi.org/10.1080/10587250108025262.

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Sampaio, A. R., P. R. G. Fernandes, M. Simões et A. J. Palangana. « Viscosity of Lyotropic Nematic Calamitic Liquid Crystals ». Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 359, no 1 (avril 2001) : 269–75. http://dx.doi.org/10.1080/10587250108035586.

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Thèses sur le sujet "Calamitic"

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Wang, Qing Min. « Calamitic liquid crystals based on metalloporphyrins ». Thesis, University of Sheffield, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364297.

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Baldwin, Rodney James. « Charge Transport Properties of Reactive Calamitic Liquid Crystals ». Thesis, Queen Mary, University of London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.487771.

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Polymerisable liquid crystalline semiconductors, referred to as reactive mesogens (RMs), consist of rr-conjugated cores with reactive end groups decoupled by an aliphatic spacer. These can be polymerised within a mesophase, maintaining the self-assembled mesophase morphology and charge transport characteristics. By successfully maintaining desirable charge transport properties in polymerised films, these molecular systems can be used in organic electronic applications such as charge transport layers in organic light emitting diodes and field effect transistors. We present a systematic study in collaboration with Merck Chemicals Ltd (UK), of the effect of reactive end groups on charge transport in calamiti9' liquid crystals (RMs) using the time-of-flight (TOF) technique. Several different compounds were synthesised with a variation in both the LC mesogenic core group and the functional end groups. The introduction of reactive end groups in most cases affects the mesophase charge transport compared to the non-reactive LC mesophase transport. This manifests itself as a reduction in mobility, varying from a factor of four in the best case, to as large as two orders of magnitude. In the best systems studied, however, the reactive end group effect on the transport, compared to the nonreactive mesophase transport, is negligible. Polymerised reactive mesogens do maintain long-range transport, with comparable mobilities to those of the phase in which they were polymerised ·over a broad temperature range, including room temperature. The temperature independent hole and electron mobility found in polymerised systems is explored using the Holstein small polaron model in the nonadiabatic limit, yielding the relevant polaron binding energies and bandwidths. In addition to this the Bassler Gaussian Disorder Model is applied to the data yielding the relevant energetic disorder parameters.
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De, Luca Marc Dominic. « Molecular dynamics simulations of calamitic and discotic liquid crystals ». Thesis, Sheffield Hallam University, 1997. http://shura.shu.ac.uk/3187/.

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Significant progress has been made in recent years in modelling liquid crystal phases using the Monte Carlo and molecular dynamics simulation techniques. We describe the technique of molecular dynamics in the microcanonical ensemble that we have used in simulations of liquid crystal systems. A review and discussion of some of the important simulations that have been performed to date on non-spherical hard particle models, soft anisotropic single site models, and realistic atom-atom based models is presented. We report the results of molecular dynamics simulation studies of a system of particles interacting via an anisotropic potential proposed by Luckhurst and Romano, scaled by part of the well depth formulation employed by Gay and Berne. The resultant hybrid Gay-Berne Luckhurst-Romano (HGBLR) potential has an approximately spherical hard core with anisotropic long range attractive interactions with a dependency on the intermolecular vector joining a pair of sites. The spherical hard core nature of individual HGBLR centres notwithstanding we have parameterised single-site HGBLR centres to represent both calarnitic and discotic mesogens. Both systems are shown to exhibit a range of mesophases on cooling from the isotropic liquid to form a crystal, including uniaxial-nematic and columnar-like phases. Unlike previous hard particle studies these ordered phases obtain because of the presence of the long range attractive interactions. A comparison between the different structures formed with the two different parameterisations is presented including graphical representations of the simulation cell . In order to more closely represent the short range anisotropic interactions of real mesogens, a 3-HGBLR-site model has been parameterised to represent the mesogen para-terphenyl. Details of the parameterisation are discussed. Two versions of this model, a twisted central site 3-HGBLR-site site model obtained from a molecular mechanics minimum energy conformation of para-terphenyl, and an all coplanar 3-HGBLR-site site model have been studied using the molecular dynamics technique. The resultant models are found to be biaxial unlike previous anisotropic single site studies utilising soft potentials. Both models appear to exhibit a variety of uniaxial and biaxial mesophases but inclusion of the twisted site appears to promote the formation of biaxial phases. A comparison of the two models is made.
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Kloess, Petra Sabine. « Siloxane head groups and spacers in calamitic liquid crystals ». Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242294.

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Chakraborty, Susanta. « Phase transitions in Binary mixtures of calamitic and Bent-Core-Mesogens ». Thesis, University of North Bengal, 2019. http://hdl.handle.net/123456789/2847.

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Shen, Xiaodong. « Study of molecular order and dynamics in calamitic and discotic liquid crystals by ²H NMR ». Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0028/NQ32889.pdf.

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Liu, Xiao-Hua. « Calamitic octahedral manganese(I) and rhenium(I) metallomesogens and side chain liquid crystalline poly(ferrocenylsilanes) ». Thesis, University of Sheffield, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264433.

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Su, Xiaolu. « Engineering, Synthesis, and Characterization of New Multi-lamellar Liquid Crystalline Molecular Architectures based on Discotic and Calamitic π-Conjugated Mesogens ». Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066392/document.

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Grace à leurs propriétés d’auto-réparation et d’auto-organisation, les matériaux pi-conjugués liquide-cristallins (LCs) présentent un grand intérêt pour l’élaboration de matériaux semi-conducteurs à hautes performances. Ils peuvent être utilisés pour différents types d’applications en électronique organique telles que les cellules solaires (OPV), les diodes électroluminescentes (OLED) et les transistors à effet de champs (OFET). Dans ce travail, nous avons conçu et préparé une nouvelle famille de LCs combinant des entités pi-conjuguées de type calamitique et discotique au sein d’une architecture moléculaire unique. Plus particulièrement, nous avons imaginé trois différentes architectures telles que des dyades et triades linéaires et des triades ramifiées, incluant des dérivés discotiques de pérylène ou de triphénylène et des dérivés calamitiques de terthiophène, de benzothienobenzothiophène ou encore de pyromellitique. L’objectif était d’étudier leurs comportements liquide-cristallins et leurs propriétés d’auto-organisation et de transport de charges.Les résultats obtenus ont montré que ces matériaux donnent des auto-assemblages complexes formant des arrangements multi-lamellaires de bicouches, dans lesquelles les entités calamitiques et discotiques présentent une organisation dans le plan. De plus, en choisissant judicieusement les entités pi-conjuguées calamitiques et discotiques (type-p ou type-n), nous avons démontré que ce type de matériaux auto-organisés peut présenter des propriétés de transport de charge ambipolaire en formant des chemins distincts pour chaque type de charge (trou et électron) par nano-ségrégation de ces entités de type p et de type n
Due to their self-healing ability and their self-organization property, pi-conjugated liquid crystals (LCs) are materials of great interest to prepare high performance semiconducting materials. They can be used in different types of organic electronic applications such as solar cells (OPV), Organic Light-Emitting Diodes (OLED) and Organic Field-Effect Transistors (OFET). In this work, we were interested in designing and preparing a novel family of LCs combining π-conjugated discotic and calamitic moieties in a unique molecular architecture. More particularly, we designed three different molecular architectures based on a linear dyad, triad and a branched triad, which include discotic triphenylene or perylene and calamitic terthiophene, benzothienobenzothiophene or pyromellitic moieties. The objective was to study their liquid crystalline behaviors and their self-organization and charge transport properties.Based on our results, we demonstrated that these materials can form complex self-assemblies in the bulk such as multi-lamellar arrangements presenting bilayered lamellar phases with in-layer organization of both calamitic and discotic species. In addition, based on the appropriate choice of the disk- and rod-like π-conjugated cores (p-type or n-type), we showed that this kind of self-organized materials could exhibit ambipolar charge transport properties, presenting a spontaneous nanosegregation of p-type and n-type entities in bulk, and leading to well-defined distinct conductive channels for each type of charge carriers (hole and electron)
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Castiglione, Andrea. « Liquid crystalline macromolecular architectures based on regioregular poly(3-alkylthiophene) as backbone and calamitic mesogens as side-groups : towards ambipolar materials ». Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066693.

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Très récemment, le potentiel des semi-conducteur organiques (OSC) ambipolaires à attiré l'attention par de nombreuses applications technologiques. Dans le domaine de la microélectronique organique, l'un des obstacles majeurs pour le développent des OSC est le design de systèmes capables de transporter à la fois les électrons et les trous. Les matériaux semi-conducteurs ambipolaires ordonnés, peuvent répondre à cette problématique. Dans ce contexte nous avons développé la synthèse et la caractérisation d'une architecture macromoléculaire originale, fondée sur l'association d'un polymère semi-conducteur régiorégulier d'une part, avec des molécules ?-conjuguées cristal liquides ayant la propriété de s'auto-organiser spontanément d'autre part. Afin d'améliorer les propriétés mésomorphes et électroniques de ce système macromoléculaire, une gamme de composés différant par (i) la nature chimique du groupement pendant et (ii) le dégrée de polymérisation moyen du polymère à été synthétisée. La présence d'une mesophase a été confirmée pour chacun de ces composés par diffraction des rayons X et une mesophase de type lamello-lamellaire, présentant une alternance de couches électron-donneur ou électron-accepter à également pu être mis en évidence
Very recently ambipolar organic semi-conductors (OSC) have gaining attention for their potential use in numerous technologically relevant applications. Representative technological examples are the area of organic microelectronics where patterning of p- and n-channel semiconductors is one of the major hurdles for the implantation of OSC in organic complementary logic circuit. To achieve this objective, well-ordered ambipolar semiconducting materials are needed. In this work we investigated the self-organization and the electronic properties of a series of side chain liquid crystal (SCLC) semiconducting polymers where: (i) the backbone is a π-conjugated polymer and (ii) the side-groups are π-conjugated calamitic mesogens. We present our results on the design, synthesis, and structural characterization of this new liquid crystal regioregular poly(3-alkylthiophene) polymer family post-functionalized with side-on calamitic moieties. The parameters of these materials are: (i) the chemical nature of the side-group moieties and (ii) the degree of polymerization. As a result we will show that this strategy leads to the supramolecular self-assembly of this SCLC semiconducting polymer in a peculiar lamello-lamellar mesophase, where the two different lamellas present two different electronic properties, such as electron donor and electron acceptor behaviors
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Biswas, Soma. « EFFECT OF LINKER CHEMISTRY AND TERMINAL SUBSTITUENTS ON THE LIQUID CRYSTALLINE PROPERTIES OF BIS(AZOBENZENE) MESOGENS ». Thesis, The University of Arizona, 2008. http://hdl.handle.net/10150/193436.

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Azobenzene upon photochemical E/Z isomerization changes both its shape and size. The E-azobenzene moiety falls in the class of calamitic liquid crystalline mesogens, producing a wide variety of mesophases. Two series of linear bis(azobenzene) compounds, one with phenyl benzoate linkage and the other with benzyl benzoate linkage were synthesized. The termini of these molecules ranged from a dodecyloxy chain to hydrophobic amphiphilic dendrons up to first generation. We determined the effects of both the linkages and generation number on the mesogenic properties of these compounds. Our results show that the mesogenic behavior of these bis(azobenzene) compounds are highly dependent on the linkages between individual azobenzenes and that for the bis(azobenzene) compounds of the phenyl benzoate series, generation number had an effect on the liquid crystalline mesophase of the compounds
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Livres sur le sujet "Calamitic"

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Calamity. London : Walker Bks., 1993.

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Calamity. Cambridge, MA : Candlewick Press, 1993.

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ill, Love Judith DuFour, dir. Calamity Jane. Minneapolis, Minn : Compass Point Books, 2004.

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QUEEN, Ellery. Calamity town. Plesantville, N.Y : ImPress, 2003.

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Calamity Jane. Minneapolis : Millbrook Press, 2007.

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Hale, Shannon. Calamity Jack. New York : Bloomsbury Children's Books, 2010.

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Champion's calamity. London : Hale, 1987.

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Woog, Adam. Calamity Jane. New York : Chelsea House, 2010.

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Calamity Jane. New York : Chelsea House, 2010.

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Anderson, Mary Newhall. Calamity Jinx. New York : HarperEntertainment, 2005.

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Chapitres de livres sur le sujet "Calamitic"

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de la Fuente, M. R., M. Á. Pérez Jubindo, T. Sierra, J. L. Serrano, W. Haase, M. A. Athanassopoulou, D. Kilian, T. M. Swager et S. Wróbel. « Calamitic and Discotic Metallomesogens ». Dans Relaxation Phenomena, 511–46. Berlin, Heidelberg : Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-09747-2_7.

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Dunmur, D. A., S. Urban, A. Würflinger, L. Longa, H. R. Trebin, G. Cholewiak, D. Bauman et E. Wolarz. « Non-chiral Calamitic Liquid Crystals ». Dans Relaxation Phenomena, 163–255. Berlin, Heidelberg : Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-09747-2_5.

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Reiffenrath, Volker, et Matthias Bremer. « First Nematic Calamitic Liquid Crystals with Negative Birefringence ». Dans ACS Symposium Series, 195–205. Washington, DC : American Chemical Society, 2001. http://dx.doi.org/10.1021/bk-2001-0798.ch014.

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Collings, Peter J., et John W. Goodby. « Calamitic Liquid Crystals – Rods, Kinks, and Molecular Design ». Dans Introduction to Liquid Crystals, 137–81. [Second edition]. | [Boca Raton, Florida] : [CRC Press], [2019] | Revised edition of : Introduction to liquid crystals chemistry and physics / by Peter J. Collings and Michael Hird. [1997] : CRC Press, 2019. http://dx.doi.org/10.1201/9781315098340-5.

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Goodby, J. W. « Materials and Phase Structures of Calamitic and Discotic Liquid Crystals ». Dans Handbook of Visual Display Technology, 1845–95. Cham : Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-14346-0_81.

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Goodby, J. W. « Materials and Phase Structures of Calamitic and Discotic Liquid Crystals ». Dans Handbook of Visual Display Technology, 1–42. Berlin, Heidelberg : Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-35947-7_81-2.

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Goodby, J. W. « Materials and Phase Structures of Calamitic and Discotic Liquid Crystals ». Dans Handbook of Visual Display Technology, 1243–87. Berlin, Heidelberg : Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-540-79567-4_81.

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Upgren, Arthur. « Calamity ! » Dans Night Has a Thousand Eyes, 163–69. Boston, MA : Springer US, 1998. http://dx.doi.org/10.1007/978-1-4899-6072-6_18.

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Mathewson, Joe. « Calamities Unforeseen ». Dans The Routledge Companion to Business Journalism, 409–21. London : Routledge, 2023. http://dx.doi.org/10.4324/9781003298977-42.

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Higley, John. « Avoiding Calamity ». Dans Western Elites and Societies in Twenty-First Century Politics, 1–20. Cham : Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-52307-6_1.

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Actes de conférences sur le sujet "Calamitic"

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Witko, Waclaw, C. Selbmann et H. D. Koswig. « Thermoelectro-optical switching properties in glass-forming calamitic liquid crystal mixtures ». Dans Liquid Crystals : Materials Science and Applications, sous la direction de Jozef Zmija. SPIE, 1995. http://dx.doi.org/10.1117/12.215526.

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Marinov, Y. G., H. P. Hinov, G. B. Hadjichristov, A. G. Petrov, Uma S. Hiremath, C. V. Yelamaggad, Angelos Angelopoulos et Takis Fildisis. « Observation of Flexoelectricity in Mixtures of Calamitic and Bent-Core Liquid Crystals ». Dans ORGANIZED BY THE HELLENIC PHYSICAL SOCIETY WITH THE COOPERATION OF THE PHYSICS DEPARTMENTS OF GREEK UNIVERSITIES : 7th International Conference of the Balkan Physical Union. AIP, 2010. http://dx.doi.org/10.1063/1.3322460.

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Eichhorn, S. Holger, Jacob J. G. Rothera et Hi H. Taing. « Side-chain free and conformationally flexible conjugated calamitic liquid crystals (Conference Presentation) ». Dans Liquid Crystals XXVI, sous la direction de Iam Choon Khoo. SPIE, 2022. http://dx.doi.org/10.1117/12.2632119.

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Cvetinov, Miroslav, Maja Stojanović, Dušanka Obadović, Aniko Vajda, Katalin Fodor-Csorba et Nandor Eber. « Broadening of mesophase temperature range induced by doping calamitic mesogen with banana-shaped mesogen ». Dans 9TH INTERNATIONAL PHYSICS CONFERENCE OF THE BALKAN PHYSICAL UNION (BPU-9). AIP Publishing LLC, 2016. http://dx.doi.org/10.1063/1.4944240.

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Figueiredo Neto, Antônio M., Oscar R. Santos, Dennys Reis, Arnaldo G. Oliveira-Filho et Cristiano L. P. Oliveira. « Structure and local order of lyotropic cholesteric calamitic phases : the effect of the chiral molecule (Conference Presentation) ». Dans Liquid Crystals XXVI, sous la direction de Iam Choon Khoo. SPIE, 2022. http://dx.doi.org/10.1117/12.2632245.

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Plazos, Danielyn F., Allan Brian I. Cabisay, Rommel C. Ongcay et Rydell Reade A. Peramide. « Design of Foldable Shelter for Post-Disaster Response ». Dans International Conference on Structural Engineering and Materials. Switzerland : Trans Tech Publications Ltd, 2023. http://dx.doi.org/10.4028/p-68d3t1.

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The Philippines is hit by different calamities and is considered one of the world's most disaster-prone countries, regularly ranking in the top three countries hit most by natural catastrophes. Foldable shelters provide private and secure living spaces for persons forced to leave or lose their usual housing due to a calamity. This study aimed to design a lightweight steel-framed temporary shelter that can withstand typhoon calamities and follows the design requirements mandated by the National Building Code and National Structural Code of the Philippines. The shelter's design concept emphasized its expandability, allowing it to accommodate one family of 4-5 persons. It also is designed to be deploy easily, safe, and efficient in post-disaster settings. The major factors considered when developing the shelter are the ease of assembly process, a compact and flexible structure, and adaptability to rapidly changing conditions. The structural analysis indicates that it can withstand a typhoon with an average wind speed of 220 kph but will fail in a super typhoon like Haiyan, with an average wind speed of 250 kph. Since this shelter is designed for temporary uses, the maximum wind capacity of 220 kph is acceptable and can be a reasonable basis for using these to replace other shelters.
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Cunningham, James. « Accidents, blunders and calamities ». Dans SIGGRAPH '16 : Special Interest Group on Computer Graphics and Interactive Techniques Conference. New York, NY, USA : ACM, 2016. http://dx.doi.org/10.1145/2897841.2936753.

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Kumar, Anish, Arpita Naganur, Nikhil Horakeri, K. Sumant et Shrinivas D. Desai. « Natural calamity assessment by innovative methods ». Dans 2017 International Conference on Advances in Computing, Communications and Informatics (ICACCI). IEEE, 2017. http://dx.doi.org/10.1109/icacci.2017.8126049.

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Garg, Pooja, et Saurabh Kr Srivastava. « Life Detection System during Natural Calamity ». Dans 2016 Second International Conference on Computational Intelligence & Communication Technology (CICT). IEEE, 2016. http://dx.doi.org/10.1109/cict.2016.125.

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Tsai, C. S., Wen-Shin Chen, Shih-Hsien Yu et Chen-Tsung Yang. « Shaking Table Tests of Critical Equipment With Simple Isolators ». Dans ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-93250.

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Because the earthquake is one kind of non-predictable calamity and happens suddenly, its disaster and consequence are larger than other calamities. Mankind must face not only the emotional effects caused by earthquakes, but also the damage to the structure and substructure systems. The fire, damaged pipeline systems cased by earthquake and the destruction of the semiconductor, equipment or microelectronics in high-tech factories will cause an enormous and a chain of economic losses. Therefore, there is a need of an economical and efficient method to protect equipments from earthquake damage. Namely, in addition to promoting the earthquake-resistant capacity of structures, it is also important to ensure the safety of the expensive equipment and facilities. In this study, it is aimed at developing a new simple isolator with appropriate damping for critical equipment. The basic principle of the simple isolator is to lengthen the natural period of equipment, and simultaneously to reduce the earthquake-induced energy and the displacement of the isolator by additional damping. A series of shaking table tests for critical equipment isolated with simple isolators were carried out in the Department of Civil Engineering, Feng Chia University, Taichung, Taiwan. From these test results, it is illustrated that the simple isolator can reduce more than 80% responses of accelerations under earthquakes with peak ground acceleration of above 0.450g. Therefore, the simple isolator can be recognized as a feasible and promising way in mitigating the seismic responses of equipment. In addition, the simple isolator possesses enough energy absorbing capacity to reduce its maximum displacement and the restoring force to bring the isolator back to the original position without significant residual displacement.
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Rapports d'organisations sur le sujet "Calamitic"

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Chisari, Omar O. Notes on Optimal Growth, Climate Change Calamities, Adaptation and Mitigation. Inter-American Development Bank, septembre 2010. http://dx.doi.org/10.18235/0010829.

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A strategy of inclusion of adaptation and mitigation expenses in a model of optimal growth under threat of climate change calamities is discussed in these exploratory notes. Calamity is the result of a shock that reduces the utility level (even to extinction forever) and/or triggers a fundamental change of the economic structure. Mitigation expenses reduce the long-run probability of a calamity or the speed of convergence to it; adaptation expenses help to improve the standard of living after the calamity. The willingness to contribute to those expenses and the effects on the long-run capital stock of the economy depend on perceptions on how they will modify the law of evolution of probabilities of the shock and the standard of living after the shock. The choice between a clean technology and one that increases GHG emissions is also discussed.
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Soltani, Parmida. Reproduction of 'Clans and calamity : How social capital saved lives during China's Great Famine'. Social Science Reproduction Platform, avril 2023. http://dx.doi.org/10.48152/ssrp-vjjd-3h15.

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Fogal, Breanna. Reproduction of 'Clans and calamity : How social capital saved lives during China's Great Famine'. Social Science Reproduction Platform, avril 2023. http://dx.doi.org/10.48152/ssrp-5n4k-xc82.

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Hamdan, Tala. Reproduction of 'Clans and calamity : How social capital saved lives during China's Great Famine'. Social Science Reproduction Platform, avril 2023. http://dx.doi.org/10.48152/ssrp-p31w-c168.

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Kelsey, Tom. When Missions Fail : Lessons in ‘High Technology’ From Post-War Britain. Blavatnik School of Government, décembre 2023. http://dx.doi.org/10.35489/bsg-wp_2023/056.

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The idea that national security and economic prosperity stem from being at the technological frontier (‘techno-nationalism’) is once again a dominant feature of global politics. The post-war United States has emerged as the key model in these discussions, with the ‘moonshot’ seen as an outstanding example of how to direct state resources towards technological breakthroughs, while the capacity of the American government is praised more generally for its ability to sponsor ground-breaking technology. This paper, however, suggests that the United States was the exception, not the rule, and that the failures of post-war Britain highlight the limitations of ‘techno-nationalism’ with vivid clarity. During the 1950s and 1960s, the British state took long-term bets on securing a leading role in the world’s technological future, specifically in the areas of supersonic flight via Concorde and nuclear power generation. The result, however, was not export glory but industrial calamity. These long-running programmes were eventually cut back in the 1970s, when it became accepted in Whitehall that Britain should no longer try to be the Science and Tech Superpower, attempting to leapfrog the United States to technological glory. Understanding this trajectory in Britain dislodges the sense that focusing on emerging technology and the long term is a silver bullet in policymaking. We must appreciate that the realities of technological power matter, and grasp that the post-war US was an unrepresentative case: no country today will have the relative level of industrial and technological might that it enjoyed at that time. While my arguments will resonate in other national contexts, my focus is on ensuring that any strategy for ‘high technology’ in the UK today continues to learn the lessons from the errors of the post-war period. It must be wary of expert capture within the state. It must also think about industrial strategy in an integrated way, across national security, economics, and foreign policy, with a policymaking machinery set up to deal with this level of complexity. Moreover, despite the attention afforded to national state funding, the UK should continue to see forging alliances as essential alongside working with international business and be clear-eyed about where it does and does not need to sustain national capabilities.
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Reproduction of 'Clans and calamity : How social capital saved lives during China's Great Famine'. Social Science Reproduction Platform, avril 2023. http://dx.doi.org/10.48152/ssrp-matf-3y89.

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Reproduction of 'Clans and calamity : How social capital saved lives during China's Great Famine'. Social Science Reproduction Platform, avril 2023. http://dx.doi.org/10.48152/ssrp-bs4j-8805.

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