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Journal articles on the topic 'Vertically aligned mode'

Author: Grafiati

Published: 18 May 2024

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1

Li, Shuang Cui, and Chun Cheng Hao. "The Growth Mode of Vertically Aligned Carbon Nanofibers." Advanced Materials Research 465 (February 2012): 28–32. http://dx.doi.org/10.4028/www.scientific.net/amr.465.28.

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Very dense and vertically aligned carbon nanofibers were synthesized using a CVD at the temperature of 350°C. A high density of catalytic particles, which are necessary for the growth of vertically aligned nanofibers, were prepared by direct current sputtering method. In our experiment, the sphere-shaped copper nanoparticles were deposited on silicon substrate, and then these nanoparticles catalyzed the growth of carbon fibers using acetylene as carbon source in hydrogen atmosphere. The growth of vertically aligned nanofibers showed that each copper catalyst particle grow two linear carbon nanofibers, along the vertical direction respectively.

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2

Konovalov, V. A., A. A. Muravski, C. N. Timofeev, and S. Ye Yakovenko. "44.2L: Multi-Domain Vertically Aligned Mode." SID Symposium Digest of Technical Papers 29, no. 1 (1998): 1127. http://dx.doi.org/10.1889/1.1833685.

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3

Tsung, Jieh-Wen, Tien-Lun Ting, and Wen-Hao Hsu. "Free energy in vertically aligned liquid crystal mode." Liquid Crystals 45, no. 1 (March 2, 2017): 84–94. http://dx.doi.org/10.1080/02678292.2017.1297502.

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4

Jhun, Chul Gyu, and Jin Seog Gwag. "Improved Vertically-Aligned Nematic Mode for High Performance Displays." Journal of the Optical Society of Korea 18, no. 6 (December 25, 2014): 783–87. http://dx.doi.org/10.3807/josk.2014.18.6.783.

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5

Chen, Mei, Xingwu Chen, Qi Song, Dongze Li, Tsung-Lung Chang, Xin Zhang, Hu Dou, and Hong Meng. "The Optical Design Principle of Twisted-Vertically Aligned Mode LCD." IOP Conference Series: Earth and Environmental Science 571 (November 26, 2020): 012156. http://dx.doi.org/10.1088/1755-1315/571/1/012156.

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6

Son, Phil Kook, Min Soo Park, Jin Hyuk Kwon, Jonghoon Yi, Chul Gyu Jhun, and Jin Seog Gwag. "Mixed Field Controlled-Vertically Aligned Nematic Mode with High Transmittance." Molecular Crystals and Liquid Crystals 543, no. 1 (June 30, 2011): 200/[966]—207/[973]. http://dx.doi.org/10.1080/15421406.2011.569526.

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7

Lee, Seo Hern, Tae-Hoon Yoon, and Jae Chang Kim. "Transflective liquid-crystal display using low-twisted vertically aligned mode." Optics Letters 31, no. 14 (July 15, 2006): 2196. http://dx.doi.org/10.1364/ol.31.002196.

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8

Zide, Amy N., Stephen C. Jones, Alan S. Litsky, and Nina R. Kieves. "A Cadaveric Evaluation of Pin and Tension Band Configuration Strength for Tibial Tuberosity Osteotomy Fixation." Veterinary and Comparative Orthopaedics and Traumatology 33, no. 01 (August 30, 2019): 009–14. http://dx.doi.org/10.1055/s-0039-1693968.

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Abstract Objective The purpose of this study was to compare the load at failure and mode of failure of four constructs used to stabilize a tibial tuberosity osteotomy, including two vertically aligned pins (V), two horizontally aligned pins (H), two vertically aligned pins with a tension band wire (V-TB) and two horizontally aligned pins with a tension band wire (H-TB). Study Design Eighteen pairs of cadaveric tibiae were randomized to receive a TB or no TB. One limb was randomized to be in the H or V group. The contralateral limb was then assigned to the opposite configuration. One pair of limbs was used as a control. A tensile force was applied to the patellar ligament until construct failure. Results There was no significant difference between the mean load at failure of the H (595 N) and V (556 N) groups or between H-TB (1032 N) and V-TB groups (1034 N) (p = 0.487 and p = 0.238, respectively). The TB constructs were significantly stronger than the pin only constructs (p < 0.001). The mode of failure was similar for the pin only constructs, regardless of pin orientation. The TB constructs and control tibias failed at similar loads, most commonly by patellar ligament rupture. Conclusion The use of vertically aligned pins versus horizontally aligned pins does not affect construct strength. These results support the placement of pins in a vertically or horizontally aligned fashion. When performing a tibial tuberosity osteotomy, the addition of a TB adds significant strength to the construct.

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9

Syed, Ishtiaque M., Sarabjot Kaur, Harry E. Milton, Devesh Mistry, James Bailey, Philip B. Morgan, J. Cliff Jones, and Helen F. Gleeson. "Novel switching mode in a vertically aligned liquid crystal contact lens." Optics Express 23, no. 8 (April 9, 2015): 9911. http://dx.doi.org/10.1364/oe.23.009911.

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10

Tien-Lun Ting, Cho-Yan Chen, Sau-Wen Tsao, Mei-Ju Lu, Yen-Ying Kung, Wen-Hao Hsu, and Jenn-Jia Su. "Vertically Aligned In-Plane-Switching LCD Mode With Novel Pixel Circuits." Journal of Display Technology 9, no. 10 (October 2013): 832–39. http://dx.doi.org/10.1109/jdt.2013.2262259.

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11

Konovalov, V. A., A. A. Minko, A. A. Muravski, S. N. Timofeev, and S. Ye Yakovenko. "Mechanism and electro-optic properties of multidomain vertically aligned mode LCDs." Journal of the Society for Information Display 7, no. 3 (1999): 213. http://dx.doi.org/10.1889/1.1984478.

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12

Neretina, S., R. A. Hughes, J. F. Britten, N. V. Sochinskii, J. S. Preston, and P. Mascher. "Vertically aligned wurtzite CdTe nanowires derived from a catalytically driven growth mode." Nanotechnology 18, no. 27 (June 11, 2007): 275301. http://dx.doi.org/10.1088/0957-4484/18/27/275301.

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13

Konovalov, V. A., A. A. Muravski, S. N. Timofeev, and S. Ye Yakovenko. "Pixel design and electro-optic properties of multi-domain vertically aligned mode." SID Symposium Digest of Technical Papers 30, no. 1 (1999): 668. http://dx.doi.org/10.1889/1.1834112.

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14

Hsieh, M. F., K. H. Peng, Y. H. Hsu, M. C. Shih, H. C. Hung, C. P. Hung, H. S. Hsieh, W. Y. Li, M. T. Yang, and C. K. Wei. "69.2: Invited Paper: Recent Improvements of Multidomain-Vertically-Aligned-Mode LCD TV." SID Symposium Digest of Technical Papers 37, no. 1 (2006): 1942. http://dx.doi.org/10.1889/1.2433432.

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15

Yang, Seung-Su, and Taeyoung Won. "Patterned Vertically Aligned Mode with a Single Cell Gap for Transflective Operation." Molecular Crystals and Liquid Crystals 507, no. 1 (September 3, 2009): 353–61. http://dx.doi.org/10.1080/15421400903054303.

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16

Ajmal Khan, M., Y. Ishikawa, I. Kita, K. Fukunaga, T. Fuyuki, and M. Konagai. "Control of verticality and (111) orientation of In-catalyzed silicon nanowires grown in the vapour–liquid–solid mode for nanoscale device applications." Journal of Materials Chemistry C 3, no. 44 (2015): 11577–80. http://dx.doi.org/10.1039/c5tc01338k.

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17

Rayerfrancis, A., Bhargav P. Balaji, N. Ahmed, and C. Balaji. "Morphological and spectroscopic studies on the vertically aligned zinc oxide nanorods grown on low and high temperature deposited seed layer." Физика и техника полупроводников 51, no. 12 (2017): 1690. http://dx.doi.org/10.21883/ftp.2017.12.45186.8562.

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Vertically aligned zinc oxide nanorods were grown on low and high temperature deposited aluminium doped zinc oxide seed layer by hydrothermal method and annealed to improve crystallinity. The morphology of the seed layer and the grown nanorods were studied by field emission scanning electron microscopy characterization technique. The properties of the zinc oxide nanorods were analyzed using laser spectroscopic studies. Resonant Raman spectroscopy reveals the unique increase in the A1(LO) mode of vibration with increase in count. The luminescence property of the nanorods was studied with photoluminescence spectrometer. The vertically aligned zinc oxide nanorods show, the very high band edge emission in the ultraviolet region of the electromagnetic spectrum. DOI: 10.21883/FTP.2017.12.45186.8562

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18

Liu, Weimin, and andJ Chen. "Electro-optical Performance of a Self-Compensating Vertically-Aligned Liquid Crystal Display Mode." Japanese Journal of Applied Physics 38, Part 1, No. 5A (May 15, 1999): 2779–84. http://dx.doi.org/10.1143/jjap.38.2779.

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19

Choi, Yoonseuk, Min Soo Park, Jin Hyuk Kwon, and Jin Seog Gwag. "Omnidirectionally continuous liquid crystal domain structure for high transmittance vertically aligned nematic mode." Journal of Applied Physics 112, no. 7 (October 2012): 074513. http://dx.doi.org/10.1063/1.4757965.

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20

Lee, You-Jin, Tae-Hee Lee, Jong-Wook Jung, Hak-Rin Kim, Yoonseuk Choi, Sung-Gon Kang, Young-Chol Yang, Seongsik Shin, and Jae-Hoon Kim. "Transflective Liquid Crystal Display with Single Cell Gap in Patterned Vertically Aligned Mode." Japanese Journal of Applied Physics 45, no. 10A (October 6, 2006): 7827–30. http://dx.doi.org/10.1143/jjap.45.7827.

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21

Yamashita, Shinji, Yusuke Inoue, Shigeo Maruyama, Youichi Murakami, Hiroshi Yaguchi, Tomoharu Kotake, and Sze Y. Set. "Mode-Locked Fiber Lasers Using Adjustable Saturable Absorption in Vertically Aligned Carbon Nanotubes." Japanese Journal of Applied Physics 45, no. 1 (December 28, 2005): L17—L19. http://dx.doi.org/10.1143/jjap.45.l17.

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22

Zhang, Guoqiang, Kouta Tateno, Hideki Gotoh, and Tetsuomi Sogawa. "Vertically Aligned InP Nanowires Grown via the Self-Assisted Vapor–Liquid–Solid Mode." Applied Physics Express 5, no. 5 (April 16, 2012): 055201. http://dx.doi.org/10.1143/apex.5.055201.

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23

Lee, Hak Moo, Hyung-Koo Chung, Hong-Gyu Park, and Dae-Shik Seo. "Vertically aligned liquid crystal mode on UV-cured reactive mesogen using imprinting method." Optical Materials Express 5, no. 1 (December 5, 2014): 44. http://dx.doi.org/10.1364/ome.5.000044.

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24

Konovalov, V. A., A. A. Muravski, S. N. Timofeev, S. Ye Yakovenko, and J. Pelzl. "Properties and mechanism of multi-domain vertically aligned mode on a grid surface." Journal of the Society for Information Display 11, no. 1 (2003): 47. http://dx.doi.org/10.1889/1.1831719.

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25

Geivandov, Artur R., Mikhail I. Barnik, Irina V. Kasyanova, and Serguei P. Palto. "Study of the vertically aligned in-plane switching liquid crystal mode in microscale periodic electric fields." Beilstein Journal of Nanotechnology 9 (January 2, 2018): 11–19. http://dx.doi.org/10.3762/bjnano.9.2.

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The ongoing interest in fast liquid crystal (LC) modes stimulated by display technology and new applications has motivated us to study in detail the in-plane switching (IPS) vertically aligned (VA) mode. We have studied how the decrease of the period of the interdigitated electrodes (down to sub-micrometer scale) influences the switching speed, especially the LC relaxation to the initial homeotropic state. We have found that there are two types of the relaxation: a fast relaxation caused by the surface LC sub-layer deformed in the vicinity of the electrodes and the slower relaxation of the bulk LC. The speed of the fast (surface) mode is defined by half of a period of the electrode grating, while the relaxation time of the bulk depends on the LC layer thickness and the length of the driving electric pulses. Thus, the use of the surface mode and the reduction of the electrode grating period can result in significant increase of switching speed compared to the traditional LC modes, where the bulk relaxation dominates in electrooptical response. We have studied thoroughly the conditions defining the surface mode applicability. The numerical simulations are in good agreement with experimental measurements.

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26

Goetz, Achim, Andreas Taugerbeck, Georg Bernatz, and Kazuaki Tarumi. "48.1: Advanced Liquid-Crystal Materials for the Polymer-Sustained Vertically Aligned (PS-VA) Mode." SID Symposium Digest of Technical Papers 41, no. 1 (2010): 718. http://dx.doi.org/10.1889/1.3500570.

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27

Barnik, Mikhail Ivanovich, Ivan Vladimirovich Simdyankin, Artur Rubenovich Geivandov, Boris Alexandrovich Umanskii, and Serguei Petrovich Palto. "Fast spatially localised electrooptical mode in vertically aligned nematic LCs with negative dielectric anisotropy." Liquid Crystals 47, no. 2 (July 31, 2019): 273–83. http://dx.doi.org/10.1080/02678292.2019.1643507.

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28

Liu, Weimin, Jack Kelly, and J. Chen. "Electro-optical Performance of a Vertically-Aligned LCD Mode Using Electrically Controlled Self-Compensation." SID Symposium Digest of Technical Papers 29, no. 1 (1998): 319. http://dx.doi.org/10.1889/1.1833757.

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29

Yang, Young-Chol, Jeong Ye Choi, Junhyung Kim, Mijung Han, Jaehyuk Chang, Juhan Bae, Dae-Jin Park, et al. "P-164: Single Cell Gap Transflective Mode for Vertically Aligned Negative Nematic Liquid Crystals." SID Symposium Digest of Technical Papers 37, no. 1 (2006): 829. http://dx.doi.org/10.1889/1.2433644.

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30

Song, Yong-Won, Shinji Yamashita, Erik Einarsson, and Shigeo Maruyama. "All-fiber pulsed lasers passively mode locked by transferable vertically aligned carbon nanotube film." Optics Letters 32, no. 11 (April 26, 2007): 1399. http://dx.doi.org/10.1364/ol.32.001399.

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31

Tsao, Sau-Wen, Cho-Yan Chen, Tien-Lun Ting, Yen-Ying Kung, Mei-Ju Lu, Wen-Hao Hsu, and Jenn-Jia Su. "28.3: A Novel Vertically-aligned In-plane-switching LCD Mode with Great Picture Quality." SID Symposium Digest of Technical Papers 44, no. 1 (June 2013): 342–45. http://dx.doi.org/10.1002/j.2168-0159.2013.tb06216.x.

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32

Lee, You-Jin, Hak-Rin Kim, Tae-Hee Lee, Jong-Wook Jung, Jae-Hoon Kim, and Jong Sun Choi. "P-162: Transflective LCD in a Patterned Vertically Aligned Mode with a Single Cell Gap." SID Symposium Digest of Technical Papers 37, no. 1 (2006): 821. http://dx.doi.org/10.1889/1.2433642.

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33

Kim, Dong-Woo, Eunje Jang, Yong-Woon Lim, and Sin-Doo Lee. "Defect-free deformed-helix ferroelectric liquid-crystal mode in a vertically aligned configuration (Invited Paper)." Journal of the Society for Information Display 16, no. 9 (2008): 947. http://dx.doi.org/10.1889/1.2976655.

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34

Kuge, Yutaro, Takahiro Ishinabe, Yosei Shibata, and Hideo Fujikake. "20‐1: Fast Switching Twisted‐Vertically Aligned Mode Reflective LCD using Mortar‐shaped Pixel Structure." SID Symposium Digest of Technical Papers 50, no. 1 (May 29, 2019): 267–70. http://dx.doi.org/10.1002/sdtp.12907.

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35

Mizusaki, Msanobu, and Shoichi Ishihara. "A Novel Technique for Determination of Residual Direct-Current Voltage of Liquid Crystal Cells with Vertical and In-Plane Electric Fields." Symmetry 13, no. 5 (May 7, 2021): 816. http://dx.doi.org/10.3390/sym13050816.

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Generation of residual direct-current (DC) voltage (VrDC) induces serious image sticking of liquid crystal displays (LCDs). In this study, a novel technique to determine the VrDC of LC cells is proposed. We found that the VrDC could be determined from a current-voltage (I-V) curve obtained by the application of triangular voltage. In the case of a vertically aligned twisted nematic (VTN) mode LC cell, where a vertical electric field is applied, the I-V curve shows maximum and minimum current peaks owing to rotation of an LC director, and the VrDC is able to be determined from an average value of the two peaks. On the other hand, in the case of a fringe field switching (FFS) mode LC cell, where an in-plane (lateral) electric field is applied from comb electrodes, the current peaks derived from the rotation of the LC director do not appear. Therefore, we could not adopt the same way with that of the VTN mode LC cell. However, we found that there were two minimum current peaks derived from minimum capacitances of the FFS mode LC cell, and could determine the VrDC by using these two current peaks. The proposed technique would be useful for the evaluation of the VrDC of the LCDs, where the electric field is applied both vertically and laterally.

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36

Kim, Jung-Wook, Dong Han Song, Ki-Han Kim, and Tae-Hoon Yoon. "P.103: High Transmittance LC Mode Based on Fringe Field Switching of Vertically-Aligned Negative LCs." SID Symposium Digest of Technical Papers 44, no. 1 (June 2013): 1376–79. http://dx.doi.org/10.1002/j.2168-0159.2013.tb06497.x.

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37

Lai, Cheng-Wei, Sau-Wen Tsao, Cho-Yan Chen, Tien-Lun Ting, Wen-Hao Hsu, and Jenn-Jia Su. "24.2: Investigation of Flexoelectric Effect in Vertically-Aligned In-Plane-Switching Mode by Low Frequency Driving." SID Symposium Digest of Technical Papers 45, no. 1 (June 2014): 312–13. http://dx.doi.org/10.1002/j.2168-0159.2014.tb00084.x.

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38

Li, Xiang, Chung-Ching Hsieh, Yong-Chao Zhao, Yu Zhang, Ren-Tang Zhao, Yan-Jun Song, Wei Ren, Chun-Ge Yuan, Chung-Yi Chiu, and Chia-Yu Lee. "P-116: The Investigation of Recovery Time of Ultraviolet Induced Multi-domain Vertically Aligned (UV2A) LC Mode." SID Symposium Digest of Technical Papers 47, no. 1 (May 2016): 1560–62. http://dx.doi.org/10.1002/sdtp.11003.

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39

Xi, Dongjuan, Jianzhong Li, Qibing Pei, and Bin Chen. "Raman studies of optical phonons in vertical cadmium sulfide nanorod arrays." Journal of Materials Research 21, no. 11 (November 2006): 2911–15. http://dx.doi.org/10.1557/jmr.2006.0360.

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Electrochemically grown cadmium sulfide (CdS) nanorod arrays were studied with Raman spectroscopy. The resonant Raman spectroscopy unravels the enhanced electron-phonon interaction up to the fifth-order multiphonon process in the vertically aligned CdS nanorods after annealing. Resonant Raman scattering at room temperature reveals a surface phonon mode at 253 cm−1 in the annealed nanorod. This unprecedented observation is accounted for by the lateral confinement in the nanorod whose average aspect ratio is approximately 5. An intersubband transition near 3000 cm−1 is also observed. These results point to important optoelectronic applications of this material.

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40

Chuang, Kuei-Ya, Te-En Tzeng, and Tsong-Sheng Lay. "Coupled InGaAs Quantum Dots for Electro-Optic Modulation." Crystals 11, no. 10 (September 23, 2021): 1159. http://dx.doi.org/10.3390/cryst11101159.

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We investigated the growth of vertically coupled In0.75Ga0.25As quantum dots (QDs) by varying the GaAs spacer thickness (d). Vertically-aligned triple-layer QDs of uniform size and highest accumulated strain are formed with d = 5 nm. The electroluminescence (EL) characteristics for In0.75Ga0.25As QDs show an emission spectrum at optical wavelength (λ) of 1100−1300 nm. The EL spectra exhibit the highest optical gain at λ ~ 1200 nm, and the narrowest FWHM = 151 nm of the sample with d = 5 nm at injection current = 20 mA. Fabry–Perot measurements at λ = 1515 nm of TE and TM polarizations were carried out to investigate the electro-optic modulation for a single-mode ridge waveguide consisting of vertically-coupled triple-layer In0.75Ga0.25As QDs (d = 5 nm). The linear (r) and quadratic (s) electro-optic coefficients are r = 2.99 × 10−11 m/V and s = 4.10 × 10−17 m2/V2 for TE polarization, and r = 1.37 × 10−11 m/V and s = 3.2 × 10−17 m2/V2 for TM polarization, respectively. The results highlight the potential of TE/TM lightwave modulation by InGaAs QDs at photon energy below energy band resonance.

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41

Kim, Kyung-Bae, Jin Seog Gwag, You-Jin Lee, Hyeok Jin Lee, and Jae-Hoon Kim. "P-190: Wide-Band Transflective Liquid Crystal Display in a Patterned Vertically Aligned Mode with a Single Cell Gap." SID Symposium Digest of Technical Papers 39, no. 1 (2008): 1920. http://dx.doi.org/10.1889/1.3069564.

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42

Comite, Davide, Paolo Baccarelli, Paolo Burghignoli, and Alessandro Galli. "Wire-medium loaded planar structures: modal analysis, near fields, and radiation features." International Journal of Microwave and Wireless Technologies 8, no. 4-5 (April 12, 2016): 713–22. http://dx.doi.org/10.1017/s1759078716000490.

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A novel transmission-line model is used for the analysis of planar structures, including wire-medium (WM) slabs with vertically aligned wires. The network formalism allows for an effective determination of the relevant spectral Green's functions, of the modal dispersion equation via transverse resonance, as well as of the far-field radiation pattern produced by simple sources via reciprocity, as opposed to the more cumbersome field-matching approach. Numerical results, validated also against state-of-the-art simulation software, confirm the accuracy and effectiveness of the proposed approach. In particular, modal and radiation features are presented for a class of leaky-wave antennas based on planar WM loaded configurations covered by partially reflecting screens, for which leaky unimodal regimes are achieved by minimizing spurious radiation from the quasi-transverse electromagnetic (TEM) mode.

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43

Long, Zhenghao, Yucheng Ding, Xiao Qiu, Yu Zhou, Shivam Kumar, and Zhiyong Fan. "A dual-mode image sensor using an all-inorganic perovskite nanowire array for standard and neuromorphic imaging." Journal of Semiconductors 44, no. 9 (September 1, 2023): 092604. http://dx.doi.org/10.1088/1674-4926/44/9/092604.

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Abstract The high-density, vertically aligned retinal neuron array provides effective vision, a feature we aim to replicate with electronic devices. However, the conventional complementary metal-oxide-semiconductor (CMOS) image sensor, based on separate designs for sensing, memory, and processing units, limits its integration density. Moreover, redundant signal communication significantly increases energy consumption. Current neuromorphic devices integrating sensing and signal processing show promise in various computer vision applications, but there is still a need for frame-based imaging with good compatibility. In this study, we developed a dual-mode image sensor based on a high-density all-inorganic perovskite nanowire array. The device can switch between frame-based standard imaging mode and neuromorphic imaging mode by applying different biases. This unique bias-dependent photo response is based on a well-designed energy band diagram. The biomimetic alignment of nanowires ensures the potential for high-resolution imaging. To further demonstrate the imaging ability, we conducted pattern reconstruction in both modes with a 10 × 10 crossbar device. This study introduces a novel image sensor with high compatibility and efficiency, suitable for various applications including computer vision, surveillance, and robotics.

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44

Mantena, P. Raju, Tezeswi Tadepalli, Brahmananda Pramanik, Veera M. Boddu, Matthew W. Brenner, L. David Stephenson, and Ashok Kumar. "Energy Dissipation and the High-Strain Rate Dynamic Response of Vertically Aligned Carbon Nanotube Ensembles Grown on Silicon Wafer Substrate." Journal of Nanomaterials 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/259458.

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The dynamic mechanical behavior and high-strain rate response characteristics of a functionally graded material (FGM) system consisting of vertically aligned carbon nanotube ensembles grown on silicon wafer substrate (VACNT-Si) are presented. Flexural rigidity (storage modulus) and loss factor (damping) were measured with a dynamic mechanical analyzer in an oscillatory three-point bending mode. It was found that the functionally graded VACNT-Si exhibited significantly higher damping without sacrificing flexural rigidity. A Split-Hopkinson pressure bar (SHPB) was used for determining the system response under high-strain rate compressive loading. Combination of a soft and flexible VACNT forest layer over the hard silicon substrate presented novel challenges for SHPB testing. It was observed that VACNT-Si specimens showed a large increase in the specific energy absorption over a pure Si wafer.

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45

Cheng, P.-J. "Hydromagnetic stability of a thin electrically conducting fluid film flowing down the outside surface of a long vertically aligned column." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 223, no. 2 (February 1, 2009): 415–26. http://dx.doi.org/10.1243/09544062jmes362.

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This article considers the stability of a thin electrically conducting fluid film flowing down the outer surface of a long vertical cylinder in the presence of an applied magnetic field. Using the long-wave perturbation method to solve the generalized non-linear kinematic equations with free film interface, the normal mode approach is first used to compute the linear stability solution. The method of multiple scales is then used to obtain the weak non-linear dynamics. The results indicate that both subcritical instability and supercritical stability conditions are possible. The degree of instability in the film flow is intensified by the lateral curvature of the cylinder. The results also show that increasing the strength of the magnetic field tends to enhance the stability.

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46

Cojocaru, C. S., and F. Le Normand. "On the role of activation mode in the plasma- and hot filaments-enhanced catalytic chemical vapour deposition of vertically aligned carbon nanotubes." Thin Solid Films 515, no. 1 (September 2006): 53–58. http://dx.doi.org/10.1016/j.tsf.2005.12.137.

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47

Tata, Pranathi, Ramakrishnan Ganesan, and Jayati Ray Dutta. "Amplifying bactericidal activity: Surfactant-mediated AgBr thin film coating over two-dimensional vertically aligned ZnO nanorods for dark-light dual mode disinfection." Journal of Photochemistry and Photobiology B: Biology 250 (January 2024): 112815. http://dx.doi.org/10.1016/j.jphotobiol.2023.112815.

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48

Martynowicz, P. "Study of vibration control using laboratory test rig of wind turbine tower-nacelle system with MR damper based tuned vibration absorber." Bulletin of the Polish Academy of Sciences Technical Sciences 64, no. 2 (June 1, 2016): 347–59. http://dx.doi.org/10.1515/bpasts-2016-0040.

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Abstract Wind turbine tower dynamic stress is related to the fatigue wear and reliability of the whole wind turbine structure. This paper deals with the problem of tower vibration control using a specially designed and built laboratory model. The considered wind turbine tower-nacelle model consists of a vertically arranged stiff rod (representing the tower), and a system of steel plates (representing nacelle and turbine assemblies) fixed at its top. The horizontally aligned tuned vibration absorber (TVA) with magnetorheological (MR) damper is located also at the top of the rod (in nacelle system). Force excitation sources applied horizontally to the tower itself and to the nacelle were both considered. The MR damper real-time control algorithms, including ground hook control and its modification, sliding mode control, linear and nonlinear (cubic and square root) damping, and adaptive solutions are compared to the open-loop case with various constant MR damper input current values and system without MR TVA (i.e., MR TVA in “locked” state). Comprehensive experimental analyses and their results are presented.

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Martynowicz, Paweł. "Vibration control of wind turbine tower-nacelle model with magnetorheological tuned vibration absorber." Journal of Vibration and Control 23, no. 20 (June 26, 2015): 3468–89. http://dx.doi.org/10.1177/1077546315591445.

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Wind turbine tower dynamic load is related to the fatigue and reliability of the structure. This paper deals with the problem of tower vibration control using specially designed and built numerical and laboratory model. The regarded wind turbine tower-nacelle model consists of vertically arranged stiff rod (representing the tower), and a stiff body fixed at its top representing nacelle assembly that is equipped with horizontally aligned tuned vibration absorber (TVA) with magnetorheological (MR) damper. To model tower-nacelle dynamics, Comsol Multiphysics finite element method environment was used. For time and frequency domain numerical analyses (including first and second bending modes of vibration) of system with TVA and MR damper models, MATLAB/Simulink environment was used with Comsol Multiphysics tower-nacelle model embedded. Force excitation sources applied horizontally to the nacelle, and to the tower itself were both considered. The MR damper real-time control algorithms, including ground hook control and its modification, sliding mode control, linear and nonlinear (cubic and square root) damping, and adaptive solutions are compared to the open-loop case with various constant MR damper input current values and system without MRTVA (i.e. MRTVA in ‘locked’ state). Comprehensive numerical analyses results are presented along with Vensys 82 full-scale tower-nacelle model validation. Finally, preliminary results of laboratory tests are included.

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Busleev, Nikolay, Sergey Kudryashov, Irina Saraeva, Pavel Danilov, Andrey Rudenko, Dmitry Zayarny, Stefan A. Maier, Pham Hong Minh, and Andrey Ionin. "Few Percent Efficient Polarization-Sensitive Conversion in Nonlinear Plasmonic Interactions Inside Oligomeric Gold Structures." Sensors 21, no. 1 (December 24, 2020): 59. http://dx.doi.org/10.3390/s21010059.

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The backscattering spectra of a 500 nm thick gold film, which was excited near the 525 nm transverse localized plasmon resonance of its constituent, self-organized, vertically-aligned nanorods by normally incident 515 nm, 300 fs laser pulses with linear, radial, azimuthal and circular polarizations, revealed a few-percent conversion into Stokes and anti-Stokes side-band peaks. The investigation of these spectral features based on the nanoscale characterization of the oligomeric structure and numerical simulations of its backscattering response indicated nonlinear Fano-like plasmonic interactions, particularly the partially degenerate four-wave mixing comprised by the visible-range transverse plasmon resonance of the individual nanorods and an IR-range collective mode of the oligomeric structure. Such oligomeric structures in plasmonic films may greatly enhance inner nonlinear electromagnetic interactions and inner near-IR hotspots, paving the way for their engineered IR tunability for broad applications in chemosensing and biosensing.

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