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Surface-mediated Photoalignment of Liquid Crystalline Polymers
Takahiro Seki 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.1
Most polymer films have a free surface (surface exposed to the air). Recent studies have emphasized the importance of the free surface in many aspects of polymer processing. We have recently shown that the free surface plays the critical role in controlling the mesogen alignment of side chain liquid crystalline polymers (SCLCPs).<sup>1</sup> A skin layer (typically 20 nm thickness) or inkjet-printed pattern at the free surface is able to regulate the mesogen orientation of SCLCP films of micrometers thickness.<sup>2,3</sup> The mesogen orientation can be switched by the photo responsive top surface both in the in-plane<sup>2</sup> and out-of-plane3 directions. Another interesting aspect is the surface effect for the induction of surface morphing.<sup>4</sup> Surface relief grating formation could be performed also for a light-inert SCLCP films with a photo responsive surface skin layer.<sup>5</sup> (1) T. Seki, Bull. Chem. Soc. Jpn., 91, 1026 (2018); T. Seki, Polym. J., 46, 751 (2014); T. Seki, Macromol. Rapid Commun., 35, 271 (2014). (2) K. Fukuhara et al., Nat. Commun., 5, 3320 (2014). (3) T. Nakai et al., Langmuir, 32, 909 (2016). (4) I. Kitamura et al., Sci. Rep., 9, 2556 (2019). (5) I. Kitamura et al., Sci. Rep., 10, 12664 (2020).
EPR = ER, scattering amplitude and entanglement entropy change
Seki, S.,Sin, S.J. North-Holland Pub. Co 2014 Physics letters. Section B Vol.735 No.-
We study the causal structure of the minimal surface of the four-gluon scattering, and find a world-sheet wormhole parametrized by Mandelstam variables, thereby demonstrate the EPR = ER relation for gluon scattering. We also propose that scattering amplitude is the change of the entanglement entropy by generalizing the holographic entanglement entropy of Ryu-Takayanagi to the case where two regions are divided in space-time.
Seki, Eiko 이화여자대학교 동서교육연구소 1985 East west education Vol.6 No.1
In this chapter, we examine the way how Korean people were involved in the reestablishment of their education under the circumstances mentioned above. Under the U.S. Military Government, how did Koreans view their new education? What did they do with its reconstruction? And what sort of role did they play in the whole picture of educational reform in Korea after Liberation? Unlike the case in Japan, the U.S. Government was not ready for occupation in Korea after World War Ⅱ. As a result, they could not help taking the so-called "Koreanization Policy" by asking for the assistance of a number of Korean people for the occupational government. In other words, Koreans were ready to meet the demand in the direction of Koreanization. In the field of education, for instance, the leading educators had their meetings right after Liberation in order to elaborate their plan for reestablishment of education for the Korean national, which had been ignored for 36 years. It is safe to say that the reestablishment of Korean education after Liberation was the combination of efforts by the Korean people to recover their education based on nationalism and by the U.S. Military Government for the Koreanization Policy. Many of the Korean prominent educators played important roles as either staff members of the Bureau of Education of the Military Government or as members of advisory committees for the Military Government.
Seki Yoko,이상옥 일본어문학회 2013 일본어문학 Vol.62 No.-
In this study, we determined what the more favored means of communication for “confession” strategies used by both men and women. Then, it is in our best interest to analyze the linguistic structures of the communication strategies discussed. As a result of the study, the confession expressions that were revealed were: “Please go out with me”, to express the emotions of liking someone through “I like you”, and lastly “I want us to be together”. Instead of just “Please go out with me”, other expressions such as “I like you” and “I want to be with you” were also confirmed in this study. In the study, there were two most popular methods of confession which was “expressing/confessing the feeling of liking the person” or “to go out on a date together”. Despite those two most popular methods, there were also eleven other types of ways of expressing one’s functional expressions.
Evaluation of Micro EV's Spreading to Local Community by Multinomial Logit Model
Seki, Yoichi,Manrique, Luis C.,Amagai, Kenji,Takarada, Takayuki Korean Institute of Industrial Engineers 2012 Industrial Engineeering & Management Systems Vol.11 No.2
Micro Electric Vehicles are considered as a solution for reducing $CO_2$ emissions, however, it is difficult to evaluate its impact in a local community when it has been introduced. In this study, we evaluated how to spread the Micro EV within the community, using the utility derived from a multinomial logit model, and analyze the effect on $CO_2$ emissions. The householder's utility model is based on an investigation about Kiryu citizen's activities of shopping, transportation methods, etc. Using the geographic information system, we get the distances of each householder and the stores, and estimate a multinomial logit model about the combination choices of shopping stores and transportation method.