Academic literature on the topic 'Active Cholesterics'

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Journal articles on the topic "Active Cholesterics"

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A, Fechan, Semenova J, Batbayarin D, and Batbayarin O. "The Contrast of Cholesteric-Nematic Transition in Indused Cholesterics." Физик сэтгүүл 6, no. 147 (2022): 36–40. http://dx.doi.org/10.22353/physics.v6i147.823.

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Cui, Zhenlu, Xiaoming Zeng, and Jianbing Su. "Steady States of Sheared Active Nematics." Advances in Applied Mathematics and Mechanics 6, no. 01 (2014): 75–86. http://dx.doi.org/10.4208/aamm.12-m12109.

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AbstractA continuum hydrodynamic model has been used to characterize flowing active nematics. The behavior of such a system subjected to a weak steady shear is analyzed. We explore the director structures and flow behaviors of the system in flow-aligning and flow tumbling regimes. Combining asymptotic analysis and numerical simulations, we extend previous studies to give a complete characterization of the steady states for both contractile and extensile particles in flow-aligning and flow-tumbling regimes. Another key prediction of this work is the role of the system size on the steady states
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Carenza, Livio Nicola, Giuseppe Gonnella, Davide Marenduzzo, and Giuseppe Negro. "Rotation and propulsion in 3D active chiral droplets." Proceedings of the National Academy of Sciences 116, no. 44 (2019): 22065–70. http://dx.doi.org/10.1073/pnas.1910909116.

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Chirality is a recurrent theme in the study of biological systems, in which active processes are driven by the internal conversion of chemical energy into work. Bacterial flagella, actomyosin filaments, and microtubule bundles are active systems that are also intrinsically chiral. Despite some exploratory attempt to capture the relations between chirality and motility, many features of intrinsically chiral systems still need to be explored and explained. To address this gap in knowledge, here we study the effects of internal active forces and torques on a 3-dimensional (3D) droplet of choleste
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Tseng, Heng-Yi, Li-Min Chang, Kuan-Wu Lin, et al. "Smart Window with Active-Passive Hybrid Control." Materials 13, no. 18 (2020): 4137. http://dx.doi.org/10.3390/ma13184137.

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Dimming and scattering control are two of the major features of smart windows, which provide adjustable sunlight intensity and protect the privacy of people in a building. A hybrid photo- and electrical-controllable smart window that exploits salt and photochromic dichroic dye-doped cholesteric liquid crystal was developed. The photochromic dichroic dye causes a change in transmittance from high to low upon exposure to sunlight. When the light source is removed, the smart window returns from colored to colorless. The salt-doped cholesteric liquid crystal can be bi-stably switched from transpar
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Zhang, Yan-Song, Shun-An Jiang, Jia-De Lin, and Chia-Rong Lee. "Bio-inspired design of active photo-mechano-chemically dual-responsive photonic film based on cholesteric liquid crystal elastomers." Journal of Materials Chemistry C 8, no. 16 (2020): 5517–24. http://dx.doi.org/10.1039/c9tc05758g.

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Liu, Kerui, Yihao Shen, Xiaojing Li, Yu Zhang, Yiwu Quan, and Yixiang Cheng. "Strong CPL of achiral liquid crystal fluorescent polymer via the regulation of AIE-active chiral dopant." Chemical Communications 56, no. 84 (2020): 12829–32. http://dx.doi.org/10.1039/d0cc05523a.

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Vulugundam, Gururaja, Krishan Kumar, Paturu Kondaiah, and Santanu Bhattacharya. "Efficacious redox-responsive gene delivery in serum by ferrocenylated monomeric and dimeric cationic cholesterols." Organic & Biomolecular Chemistry 13, no. 14 (2015): 4310–20. http://dx.doi.org/10.1039/c4ob02513j.

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Chen, Lu-Jian, Ling-Li Gong, Ya-Li Lin, et al. "Microfluidic fabrication of cholesteric liquid crystal core–shell structures toward magnetically transportable microlasers." Lab on a Chip 16, no. 7 (2016): 1206–13. http://dx.doi.org/10.1039/c6lc00070c.

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We report a magnetically transportable microlaser with cholesteric liquid crystal (CLC) core–shell structure, operating in band-edge mode, which might offer promise in in-channel illumination applications requiring active control.
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Huang, D., J. Yang, W. Wan, et al. "Cholesteric Metallomesogens Containing Optically Active Metal-Tricarbony Moieties." Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 281, no. 1 (1996): 43–49. http://dx.doi.org/10.1080/10587259608042230.

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WANG, Hui, Yang XUE, Yanni LIU, et al. "P‐75: Development of Medium and Large Size Active Bistable State Dual&Four Color Cholesteric LCDs ." SID Symposium Digest of Technical Papers 54, no. 1 (2023): 1510–13. http://dx.doi.org/10.1002/sdtp.16877.

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Compared with cholesteric display technology, which is mainly a passive driver under 5inch, this paper report one 7.5inch actively driven bistable display device. We use cyan cholesteric liquid crystal reflecting 528nm light and red ink to achieve red & white dual color display. In order to enrich the display information, one red (660nm) cell and one cyan (528nm) cell are fitted with pixel precision, and black ink is printed on the bottom, control the status of the two cells respectively, so as to achieve red, cyan, black, and white four color display. In addition, we optimized drive mode,
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Dissertations / Theses on the topic "Active Cholesterics"

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Echeverri, Mauricio. "Phase Diagram Approach to Fabricating Electro-Active Flexible Films: Highly Conductive, Stretchable Polymeric Solid Electrolytes and Cholesteric Liquid Crystal Flexible Displays." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1352949368.

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Le, Gall Stephen. "Peau active pour le camouflage dans le visible et l'infrarouge utilisant les cristaux liquides cholestériques." Thesis, Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2018. http://www.theses.fr/2018IMTA0097.

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L’objectif de cette thèse est de réaliser une peau active pour le camouflage de véhicule terrestre à base de la technologie cristal liquide cholestérique. Après analyse de l’environnement, une texture est appliquée sur les écrans cristaux liquides afin de réduire la signature visuelle et thermique du véhicule. Les travaux ont consisté à proposer un dispositif trichrome cristal liquide permettant d’obtenir la colorimétrie définie par le cahier des charges. Les problèmes de tenue en température, de réflexion spéculaire, de niveaux de gris, niveaux de réflectivité, de réduction des tensions appli
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Adhyapak, Tapan Chandra. "Mesophases Of Active Matter : Translational Order, Critical Rheology And Electrostatics." Thesis, 2012. https://etd.iisc.ac.in/handle/2005/2519.

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This thesis consists of research work in the broad area of soft condensed matter theory with a focus on active matter. The study of long wavelength, low frequency collective behavior of active particles (bacterial suspensions, fish schools, motor-microtubule extracts, active gels) forms an interesting modification to liquid-crystal hydrodynamics, in which the constituent particles carry permanent stresses that stir the fluid. Activity introduces novel instabilities and many novel aspects emerge. Our works focus on the dynamics, order, fluctuations and instabilities in these systems. In particu
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Adhyapak, Tapan Chandra. "Mesophases Of Active Matter : Translational Order, Critical Rheology And Electrostatics." Thesis, 2012. http://etd.iisc.ernet.in/handle/2005/2519.

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This thesis consists of research work in the broad area of soft condensed matter theory with a focus on active matter. The study of long wavelength, low frequency collective behavior of active particles (bacterial suspensions, fish schools, motor-microtubule extracts, active gels) forms an interesting modification to liquid-crystal hydrodynamics, in which the constituent particles carry permanent stresses that stir the fluid. Activity introduces novel instabilities and many novel aspects emerge. Our works focus on the dynamics, order, fluctuations and instabilities in these systems. In particu
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Sathaye, Kedar. "Structuration des cristaux liquides pour les différentes technologies optique." Phd thesis, 2012. http://tel.archives-ouvertes.fr/tel-00733302.

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L'objectif de cette thèse est de fabriquer différents dispositifs optiques basés sur la structuration des cristaux liquides. Nous avons tout d'abord présenté différentes méthodes pour aligner les molécules de cristaux liquides et détaillé celles que nous avons utilisées au cours de ce travail. L'alignement et certaines propriétés physiques des cristaux liquides ont permis de fabriquer des dispositifs optiques. Ces dispositifs se divisent généralement en trois catégories : les filtres optiques, les modulateurs spatiaux et les guides d'ondes optiques. Ils sont présents dans divers secteurs et pa
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Book chapters on the topic "Active Cholesterics"

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Ozaki, M., Y. Matsuhisa, H. Yoshida, Y. Takao, R. Ozaki, and A. Fujii. "Defect mode and laser action in cholesteric liquid crystal." In Nano Biophotonics - Science and Technology, Proceedings of the 3rd International Nanophotonics Symposium Handai. Elsevier, 2007. http://dx.doi.org/10.1016/s1574-0641(07)80030-1.

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Conference papers on the topic "Active Cholesterics"

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Semenova, Yuliya, Zenoviy M. Mikityuk, Andriy Fechan, and Michail Nutskovsky. "Induced cholesterics as an active medium for low-frequency light modulators." In Electronic Imaging '97, edited by Ranganathan Shashidhar. SPIE, 1997. http://dx.doi.org/10.1117/12.271394.

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Xiang, Jie, Andrii Varanytsia, Fred Minkowski, et al. "Electrically tunable laser based on heliconical cholesteric (Conference Presentation)." In Active Photonic Materials VIII, edited by Ganapathi S. Subramania and Stavroula Foteinopoulou. SPIE, 2016. http://dx.doi.org/10.1117/12.2236345.

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YOShida, Hiroyuki, SeongYong Cho, Masaru One, and Masanori Ozaki. "Concealed Holograms based on Cholesteric Liquid Crystals." In 2018 25th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD). IEEE, 2018. http://dx.doi.org/10.23919/am-fpd.2018.8437435.

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Cheng, Ko-Ting, Andy Ying-Guey Fuh, Zong-Han Wu, Cheng-Kai Liu, and Yuan-Di Chen. "Bistable cholesteric textures in chiral azobenzene-doped liquid crystals." In 2014 21st International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD). IEEE, 2014. http://dx.doi.org/10.1109/am-fpd.2014.6867113.

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Chilaya, Gouram S., Andro Chanishvili, and David Sikharulidze. "Optically active (cholesteric with intermediate chirality) LC structure for light modulation." In Liquid Crystals: Materials Science and Applications, edited by Jozef Zmija. SPIE, 1995. http://dx.doi.org/10.1117/12.215578.

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Lee, Yu-Huei, Ming-Yan Fan, Wei-Chung Chen, et al. "A near-zero cross-regulation single-inductor bipolar-output (SIBO) converter with an active-energy-correlation control for driving cholesteric-LCD." In 2011 IEEE Custom Integrated Circuits Conference - CICC 2011. IEEE, 2011. http://dx.doi.org/10.1109/cicc.2011.6055341.

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