Tokyo Polytechnic University Repository / 東京工芸大学学術リポジトリ
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Quantum cryptography
Get PDF量子暗号は量子力学の原理を利用した暗号で、量子コンピュータをもってしても破られないと言われている。汎用の量子コンピュータが実現すると、現在使われている公開鍵暗号は破られる恐れがあるため、量子コンピュータに耐える暗号の開発は急務である。暗号の開発の歴史を踏まえて、量子暗号の現状を解説する。Quantum cryptography is a new method for secret communications using quantum mechanics principles, which is never broken by intruders even with a quantum computer. In this paper, the aouthor briefly reviews history of cryptography and show core principles of the quantum cryptography by giving the example of Bennet-Brassard 1984 protocol.departmental bulletin pape
Altered Tunings in A ― Distributed music play over the network inspired by the historical changes and regional differences ―
Get PDFWe developed a distributed client/server network system which plays music almost synchronously using asynchronous communication sending music data. The tuning can be changed during the performance from the standard frequency 440 Hz to another, such as 506 or 377 Hz. These changes imply that historically the tuning frequencies had been varied. The violoncello part repeats Morse signals identifying some airports, which means that the tuning could not be the same in different regions. The piano part plays twelve notes simultaneously to indicate the temperament.departmental bulletin pape
Impact of introducing remote working/learning on demand for housing and neighborhoods in Japan, Korea, Taiwan and China under COVID-19 pandemic
Get PDF新型コロナウィルス感染症対策でテレワークや遠隔授業の普及が進み、暮らしのあり方が大きく変わっている。そこで本研究では、テレワーク・遠隔授業の実施状況、それにより住まいやまちに求めるようになったものを把握するため、日本・韓国・台湾・中国のテレワーク・遠隔授業の経験者に対するアンケート調査を実施した。This paper aims to clarify the impact of introducing remote working/learning on demand for housing and neighborhoods in Japan, Korea, Taiwan and China under COVID-19 pandemic. We conducted a questionnaire survey and clarified the similarities and differences among the countries due to the quality and condition of houses and lifestyle of the people.departmental bulletin pape
SDGs and Education (2) ---Perspective of education and Japanese traditional thought---
Get PDFSDGsと教育について、教育の役割と日本の伝統思想の観点から検討した。The purpose of this paper is to clarify the relationship between SDGs and education.
In chapter 1, Kawasumi describes what education plays an important role in bringing people from all over the world to SDGs.
In chapter 2, the problem with the SDGs is that the economy is at the center of it. Umehara states that there is a view that all things are alive in traditional Japanese thought. It is necessary in the education of the SDGs to make use of this view in education.departmental bulletin pape
Development of a line-of-sight interface for the physically challenged
Get PDF本論文では視線操作による走行ロボットの開発を行うための視線精度を検証する。視線の検証は走行ロボットのカメラを使用せず、アプリ開発の出来るシステムとそれにヘッドマウントディスプレイを使用して行う。この精度の実験は大まかな判断のものでしか行われておらず、視線精度を重要とする研究が現在は多く存在する。これらのことから本論文では視線精度と視線操作の慣れがどの程度なのかについての研究を行い、将来的に視線操作を使ったものがどの程度大切なのかを考えていく。また、この研究の最終的な目標は走行ロボットによる動作を視線インタフェースを用いて行うこととその視線インタフェースに多機能を持たせることになる。これらを今後の課題として作っていく。It is estimated that 1.5 out of 100,000 patients in Japan have quadriplegia. The number of ALS patients increased from 3,794 in 1995 to 9,950 in 2014, which is about three times higher. Given the current population growth and these facts, that number is likely to continue to grow. If more and more people cannot sway their bodies, the demand for gaze manipulation, instead of hand, will increase. A robot that can be operated by a gaze interface would be helpful for patients who cannot move their bodies. This research develops a line-of-sight interface for crawling robots that can be interactive to others in order to improve the QOL (Quality of Life) of people with physical disabilities. In this paper, as a preliminary experiment, we used a VR device to simulate and verify the operation performance of the VR line-of-sight interface. We made a target touch game with a gaze control. Nine participants performed this game. As the results, the proposed gaze interface could be useful to
control the robot.departmental bulletin pape
An Annotated Translation of Jacob Christoph Le Blonʼs Coloritto; or the Harmony of Colouring in Painting.
Get PDF東京工芸大学芸術学部This note is Japanese translation of the full text of Coloritto; or the Harmony of Colouring in Painting...([London, 1725].) by Jacob Christoph Le Blon, with its bibliographical introduction.第28号p.69-p.84掲載research repor
