著者

星野 直人 山城 光雄

出版者

足利工業大学

雑誌

足利工業大学研究集録 (ISSN:0287086X)

巻号頁・発行日

vol.31, pp.141-143, 2000-10-27

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本研究では、2組のデータの分布を比較する問題を扱った.このような分布の比較を行うためのグラフィカル手法として,経験Q-Qプロットがある.これは,2つの経験分布関数の対応する分位点の散布図である.他方,2組のデータが同一の分布に従うかどうかを検討する問題は2標本問題と呼ばれ,経験分布に基づく検定としてスミルノフ検定がある.本研究では,スミルノフ統計量から経験Q-Qプロット上に描画できる採択限界を導出し,2組のデータプロットがこの採択限界を横切るがどうかに従ってデータぼ分布の相違を検出するグラフィカル手法を提案した.さらに,提案法の適用を説明するために数値例を与えた.

著者

寺井 伸浩

出版者

足利工業大学

雑誌

足利工業大学研究集録 (ISSN:0287086X)

巻号頁・発行日

vol.42, pp.109-116, 2008-03

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The French mathematician Pierre de Fermat is famous primarily because of his extensive work in number theory. We describe several conjectures concerning exponential Diophantine equations related to Fermat's equation. By means of elementary methods and Baker theory, we show that the exponential Diophantine equation a^x + db^y = c^z has only one solution in positive integers x, y, z under some conditions.

著者

藤田 諒史 松本 直文

出版者

足利工業大学

雑誌

足利工業大学研究集録 (ISSN:0287086X)

巻号頁・発行日

vol.42, pp.69-76, 2008-03

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In this paper, we describe about a simple experimental system to analyze and mix smells aiming at remote transmission of the smell. In this system we used four quartz resonators for sensing smell. A smell recipe that is nearest the target smell is made by a combination of some smell elements by using a discrete approximation algorithm. First, we do experiments under assumption that the target smell is an arbitrary combination of smell elements. As a result, the effectiveness of this system is confirmed. Some stimulation systems that combined the sight, the sense of touch, and sense of smell are made for trial purposes to construct VR systems with high presence, and the evaluation experiment is done. The result of this research shows a basic finding to achieve the sense of smell stimulation system in the future, and shows feasibility of this kind of systems.

著者

高橋 政美

出版者

足利工業大学

雑誌

足利工業大学研究集録 (ISSN:0287086X)

巻号頁・発行日

vol.42, pp.97-101, 2008-03

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I compiled this report to observe the difference between the ideal and the reality, and to propose the methods to bring the reality as close to the ideal as possible about what "a representative of the nation means" in Constitution of Japan Article 43. Therefore I point out the importance to continue to make an effort to reduce the gap between the reality and the ideal "a representative of the nation" means in the context of the election system.

著者

大須 泰治 吉田 弘法 岡村 輝一 小西 裕之 小林 敏孝

出版者

足利工業大学

雑誌

足利工業大学研究集録 (ISSN:0287086X)

巻号頁・発行日

vol.39, pp.113-117, 2005-03-18

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In our previous article (Ashikaga Institute of Technology Research Report Vol. 36, 2003), the effect of sleep on performances of gymnasts was examined in terms of their subjective feelings of sleep, and it was found out that Japan's top athletes had achieved adequate sleep regularity and that the degree of a good sleep estimation in them was larger than that in average university athletes. In this article, we have attempted to add details about the relationship between the sleep behavior and athletic performance through the analysis of sleep-log of a gymnast who participated in Sydney Olympic Games 2000. His sleep behavior before, during, and after the Olympic Games was analyzed and compared with the sleep behaviors of five other subjects examined in the previous research. The Olympic gymnast showed an extremely high degree of regularity in sleep and positively estimated his subjective feeling of sleep, which supposedly led to his successful performance in the Olympic Games. This result suggests that top-level international gymnasts characteristically have a high degree of sleep regularity and quality.

著者

野沢 純一

出版者

足利工業大学

雑誌

足利工業大学研究集録 (ISSN:0287086X)

巻号頁・発行日

vol.42, pp.17-22, 2008-03

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The author has proposed the paper that used the tanka and haiku to explain terms, formulae and laws in the area of electrical and electronic engineering. The basic formula in the area summarizes the phenomenon. Understanding the phenomenon grasps the meaning of the formula. The tanka to explain the phenomenon is expected that the memory of the formula is established easily. This paper shows the poems which have the tanka forms to explain terms, phenomena, formulae and laws in the area of electric circuits, electromagnetism and useful mathematics for leaning the electrical and electronic engineering.

著者

野沢 純一

出版者

足利工業大学

雑誌

足利工業大学研究集録 (ISSN:0287086X)

巻号頁・発行日

vol.41, pp.21-22, 2007-03-20

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Music has the beneficial effects in human mind and body. The fact that after the interpretation of arts, neurons in the brain cells grow remarkably has been reported recently. It has been evident to the education that the arts aid in promotion of leaning. The songs of formulae and terms in the area of electrical and electronic engineering relieve beginners of the burden to memorize those. This paper shows three original songs. The titles are the component parts of electric circuits, the solutions of quadratic equation, Laplace transform respectively.

著者

野沢 純一

出版者

足利工業大学

雑誌

足利工業大学研究集録 (ISSN:0287086X)

巻号頁・発行日

vol.42, pp.23-24, 2008-03

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The author has proposed the paper that included the original songs of formulae and terms in the area of electrical and electronic engineering. Music tends to be connected with the long-term memory, and the effect is reported in the musical therapy. The musical activities are performed by the right brain predominance. The use of the songs in the lesson achieves the balance of the brain activity. This paper shows three original songs. The titles are the source of electromagnetic fields, Euler's formula, Fourier transform respectively.

著者

大須 泰治 吉田 弘法 岡村 輝一 小西 裕之 小林 敏孝

出版者

足利工業大学

雑誌

足利工業大学研究集録 (ISSN:0287086X)

巻号頁・発行日

vol.36, pp.47-52, 2003-03-18

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In order to understand the effects of an athlete's sleep behavior upon their game results. the relationship between athlete's sleep-wakefulness rhythm and their game results were estimated by both the sleep log and the questionnaire for sleep (named OSA sleep inventory). 24 male gymnasts (aged 20.5±1.32 year) participated in this study. Their results of the games were collected from the following competitions; the international DTB Cup 2000(Germany, December, 2000.), The 54th All Japan Gymnastics Championships in Sendai 2000, The 55th All Japan Gymnastics Championships in Kochi 2001, The 33rd Tohoku and Hokkaido University Gymnastics Championships in Sendai 2000. An athlete, whose subjective sleep length at the night before the game were similar or longer when compared with the average subjective sleep length of the nights from one week age to two days before a game, received good results in their game. An athlete, whose subjective sleep length at the night before the game were shorter than the average subjective sleep length in the week before a game, therefore they could not get good results in their game. An athlete, whose subjective sleep feeling al the night before the game was better than the average subjective sleep feeling in the week, hence they also received good results in their games. These results suggest that their stability of the sleep-wakefulness rhythm and a good subjective sleep feeling are closely related to their game results.

著者

石田 拓也 松本 直文

出版者

足利工業大学

雑誌

足利工業大学研究集録 (ISSN:0287086X)

巻号頁・発行日

vol.41, pp.71-78, 2007-03-20

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In this paper, it aims to construct a tele-baptic VR system that does not cause sense of incompatibility between users who share sense of touch. First, we constructed the system that caused the network delay and packet shortage. In this system, we changed a variety of set numerical values and experimented. In the experiment, we confirmed that the network congestion problem had been solved by a data compensation method. Next, we constructed the system using a haptic device PHANToM for the VR system. We constructed the system that can do tele-hatics sharing haptic by way of the Internet. Finally, we conducted a preliminary experiment concerning the cooperation working and remote teaching on this system. In the experiment, we confirmed the effectiveness of the tele-haptic system.