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See detailIsotropic-nematic interface and wetting in suspensions of colloidal platelets
van der Beek, D.; Reich, H.; van der Schoot, Paul et al

in Physical Review Letters (2006), 111(27), 7825-7835

Detailed reference viewed: 56 (0 UL)
See detailThe isotropic-nematic interface in colloidal suspensions
Schilling, Tanja UL

Presentation (2005)

Detailed reference viewed: 11 (1 UL)
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See detailIsotropic-nematic interface in suspensions of hard rods: Mean-field properties and capillary waves
Wolfsheimer, S.; Tanase, C.; Shundyak, K. et al

in Physical Review. E : Statistical, Nonlinear, and Soft Matter Physics (2006), 73(6),

Detailed reference viewed: 64 (0 UL)
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See detailThe isotropic-nematic interface in suspensions of platelets
Schilling, Tanja UL

Scientific Conference (2006)

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See detailIsotropic-nematic interfacial tension of hard and soft rods: Application of advanced grand canonical biased-sampling techniques
Vink, R. L. C.; Wolfsheimer, S.; Schilling, Tanja UL

in Journal of Chemical Physics (2005), 123(7),

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See detailIsotropic-nematic transition and cholesteric phases of helical Yukawa rods
Kuhnhold, Anja UL; Schilling, Tanja UL

in Journal of Chemical Physics (2016), 145(194904),

We present a Monte Carlo simulation study of helical Yukawa rods as a model for chiral liquid crystal mesogens.To simulate the cholesteric phase, we introduce a newsimulation method that uses softwalls ... [more ▼]

We present a Monte Carlo simulation study of helical Yukawa rods as a model for chiral liquid crystal mesogens.To simulate the cholesteric phase, we introduce a newsimulation method that uses softwalls and self-determined boundary conditions. We observe that the isotropic-nematic phase transition is shifted to lower volume fractions with decreasing salt concentration as well as with increasing internal pitch of the rods. For particular sets of interaction parameters, the sense of the cholesteric pitch inverts, i.e., depending on concentration, mesogens of a given handedness can produce cholesteric phases of both chiral senses. [less ▲]

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See detailIsotropic–isotropic phase separation and spinodal decomposition in liquid crystal–solvent mixtures
Reyes, Catherine UL; Baller, Jörg UL; Araki, Takeaki et al

in Soft Matter (2019), 15

Phase separation in mixtures forming liquid crystal (LC) phases is an important yet under- appreciated phenomenon that can drastically influence the behaviour of a multi-component LC. Here we demonstrate ... [more ▼]

Phase separation in mixtures forming liquid crystal (LC) phases is an important yet under- appreciated phenomenon that can drastically influence the behaviour of a multi-component LC. Here we demonstrate, using polarising microscopy with active cooling as well as differential scanning calorimetry, that the phase diagram for mixtures of the LC-forming compound 4’-n- pentylbiphenyl-4-carbonitrile (5CB) with ethanol is surprisingly complex. Binary mixtures reveal a broad miscibility gap that leads to phase separation between two distinct isotropic phases via spinodal decomposition or nucleation and growth. On further cooling the nematic phase enters on the 5CB-rich side, adding to the complexity. Significantly, water contamination dramatically raises the temperature range of the miscibility gap, bringing up the critical temperature for spinodal de- composition from ∼ 2◦C for the anhydrous case to > 50◦C if just 3 vol.% water is added to the ethanol. We support the experiments with a theoretical treatment that qualitatively reproduces the phase diagrams as well as the transition dynamics, with and without water. Our study highlights the impact of phase separation in LC-forming mixtures, spanning from equilibrium coexistence of multiple liquid phases to non-equilibrium effects due to persistent spatial concentration gradients. [less ▲]

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See detailThe issue of fuzzy concepts in test construction and possible remedies
Ziegler, M.; Kemper, Christoph UL; Lenzner, T.

in European Journal of Psychological Assessment (2015), 31(1), 1-4

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See detailThe issue of NATO ‘out-of-area’ operations: from West Africa to the borders of the Near East
Paravantis, Spero UL

in Centre Virtuel de la Connaissance sur L'europe (2016)

Franco-British Diplomatic games and issues within the Western European Union (WEU) (1954-1982) http://www.cvce.eu/en/recherche/unit-content/-/unit/e7c423ed-a376-4a57-a415-f8519344e558 #4 of 4 texts, which ... [more ▼]

Franco-British Diplomatic games and issues within the Western European Union (WEU) (1954-1982) http://www.cvce.eu/en/recherche/unit-content/-/unit/e7c423ed-a376-4a57-a415-f8519344e558 #4 of 4 texts, which were published to accompany the selection of WEU documents for the above-named project, to establish the relevant institutional and historical background to place these documents in their proper context. Published October 2016 by DEIS, (Formerly the CVCE) University of Luxembourg [less ▲]

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See detailIssuer-Free Oblivious Transfer with Access Control Revisited
Rial, Alfredo UL

in Information Processing Letters (2017)

Oblivious transfer with access control (OTAC) is an extension of oblivious transfer where each message is associated with an access control policy. A receiver can obtain a message only if her attributes ... [more ▼]

Oblivious transfer with access control (OTAC) is an extension of oblivious transfer where each message is associated with an access control policy. A receiver can obtain a message only if her attributes satisfy the access control policy for that message. In most schemes, the receiver's attributes are certified by an issuer. Recently, two Issuer-Free OTAC protocols have been proposed. We show that the security definition for Issuer-Free OTAC fulfilled by those schemes poses a problem. Namely, the sender is not able to attest whether a receiver possesses a claimed attribute. Because of this problem, in both Issuer-Free OTAC protocols, any malicious receiver can obtain any message from the sender, regardless of the access control policy associated with the message. To address this problem, we propose a new security definition for Issuer-Free OTAC. Our definition requires the receiver to prove in zero-knowledge to the sender that her attributes fulfill some predicates. Our definition is suitable for settings with multiple issuers because it allows the design of OTAC protocols where the receiver, when accessing a record, can hide the identity of the issuer that certified her attributes. [less ▲]

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See detailIssues in model-driven behavioural product derivation
Istoan, Paul; Biri, Nicolas; Klein, Jacques UL

in Fifth International Workshop on Variability Modelling of Software-intensive Systems (Vamos 2011) (2011)

Model Driven Engineering (MDE) was identified as a viable software development paradigm to help improve the product derivation phase of the Software Product Line (SPL) engineering process. Existing model ... [more ▼]

Model Driven Engineering (MDE) was identified as a viable software development paradigm to help improve the product derivation phase of the Software Product Line (SPL) engineering process. Existing model-driven derivation approaches fail to properly address the behavioural derivation part, yielding a frustrating situation. In this paper we first introduce a modeldriven derivation approach that combines Feature Diagrams (FD) and model fragments. We then identify and analyse several issues that emerge during the derivation process. We show that the order in which models associated to selected features are composed has a great impact on the end result of the derivation. We also present a particular class of features called disjoint and prove that current composition operators do not offer any viable solution to compose them. Finally, we argue that insufficient information available to composition operators leads to derivation results that do not satisfy user requirements. [less ▲]

Detailed reference viewed: 99 (0 UL)
See detailIst das Böse banal?
Mauer, Heike UL

in Forum für Politik, Gesellschaft und Kultur in Luxemburg (2013), 326

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See detailIst das Gedächtnis für klinisch-diagnostische Personmerkmale abhängig vom Verarbeitungsziel?
Krolak-Schwerdt, Sabine UL; le Coutre, Christine

in Psychologische Beiträge (2002), 44(3), 428-446

Detailed reference viewed: 15 (3 UL)
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See detailIst das Gedächtnis für kurze Zeitintervalle modalitätsspezifisch?
Klapproth, Florian UL

in van der Meer, E.; Hagendorf, H.; Beyer, R. (Eds.) et al 43. Kongress der Deutschen Gesellschaft für Psychologie. Programm – Abstracts. (2002)

Detailed reference viewed: 29 (0 UL)
See detail). “Ist der leichteste Weg, ein Leben zu retten, oder?” – Typisierungsbereitschaft in der deutschen und luxemburgischen Bevölkerung
Lessing, Juliane UL; Hoffmann, Martine; Krampen, Günter

in Vögele, Claus (Ed.) 11. Kongress der Fachgruppe Gesundheitspsychologie. Selbstregulation und Gesundheit. Abstractband des Kongresses (2013)

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See detailIst Einsamkeit ein Prädiktor für den Gesundheitsstatus und den Reha-Erfolg bei COPD-Patienten?
Reijnders, T.; Schuler, M.; Wittmann, M. et al

in Pneumologie (2016), 70(S 01), 57

Detailed reference viewed: 88 (0 UL)
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See detailIst es Zeit für einen „sensorial turn“? Zur Sinnlichkeit der Technik(geschichte)
Krebs, Stefan UL

in Technikgeschichte (2015), 82(1), 3-9

Detailed reference viewed: 107 (7 UL)