著者

伊地智 昭亘 宇月原 貴光

出版者

独立行政法人国立高等専門学校機構 函館工業高等専門学校

雑誌

函館工業高等専門学校紀要 (ISSN:02865491)

巻号頁・発行日

vol.51, pp.1-10, 2017 (Released:2017-01-31)

参考文献数

13

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We describe the life-work of Father of Japanese Chemistry “Udagawa Yoan”. Udagawa Yoan was influenced by his adoptive father Genshin’s philosophy and by doctor and botanist Ito Keisuke’s publication Nijyushi Kokai (Explanation of Twenty-four classes). In 1834, he published three volumes of “Shokugaku Keigen (Principles of Botany)”. They show history of the translation of basic botanical terminology and for natural philosophy and experimental plant physiology. His “Shokubutsu Shasei Zufu” demonstrates a talent as botanical artist. Moreover, on his interest in pharmacy and botany, he found some relations to chemistry. Continuously, he published his first chemistry textbook “Seimi Kaiso” based on a Dutch translation of William Henry’s chemical book. “Seimi” comes from pronunciation of “Chemie” in Dutch and “Kaiso” means “Opening of Chemistry”. He had to develop new terminology to describe chemical substances and processes, expanding the Japanese vocabulary of chemistry. His first interest in chemistry was its application to the practical arts with glassmaking. “Seimi Kaiso” for volume 3 describes the beginner’s manual on the chemistry of “biidoro”.

著者

小嶋 芳孝 中澤 寛将 稲垣 森太 高橋 一英 中村 和之

出版者

独立行政法人国立高等専門学校機構 函館工業高等専門学校

雑誌

函館工業高等専門学校紀要 (ISSN:02865491)

巻号頁・発行日

vol.51, pp.31-37, 2017 (Released:2017-01-31)

参考文献数

19

被引用文献数

1

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At the tomb of Aonae(青苗) site which is located in Okushiri(奥尻) island of Hokkaido, the Iron sword was found together with the accessory made of Jadeite, quartz and glass. In this time, we have carried out observation of the internal structure by X-ray Image Analysis apparatus in National Institute of Technology, Hakodate College. In this paper, we report on the results and considerations about the type and age of this iron sword.

著者

北見 健

出版者

独立行政法人国立高等専門学校機構 函館工業高等専門学校

雑誌

函館工業高等専門学校紀要 (ISSN:02865491)

巻号頁・発行日

vol.51, pp.96-99, 2017 (Released:2017-01-31)

参考文献数

2

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In the analysis, to study a function, we often representing the function as a series like a Taylor series and Fourier series. Fourier series can be regarded as a representation by components on some sort of orthonormal system in function space. In this paper, we introduce the function space with the metric that is suitable for the Taylor series.

著者

馬場 慎介 柳瀬 和也 今井 藍子 中井 泉 小川 康和 越田 賢一郎 中村 和之

出版者

独立行政法人国立高等専門学校機構 函館工業高等専門学校

雑誌

函館工業高等専門学校紀要 (ISSN:02865491)

巻号頁・発行日

vol.51, pp.48-67, 2017 (Released:2017-01-31)

参考文献数

21

被引用文献数

1

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Glass beads, possibly belonging to Ainu Culture, were analyzed by XRF technique to understand the origin of these glass. The samples were excavated from Hokkaido belonging to the periods from the mid 14th to the 19th century AD. The analytical results showed that the beads can be classified into two types, lead-potash silicate glass and potash lime silica glass, based on the major components. The proportion of the potash lime silica glass in total glass analyzed is significantly higher than that usually found in beads excavated in Honshu area indicating an apparent difference in the source of the glass. A compositional similarity was observed in green potash lead silica glass between present samples and Ichijyodani Asakura Clan Ruins(15,16th century AD). Potash lime silica glass beads were classified into two groups based on trace heavy elements compositions, indicating the presence of two origins.

著者

山谷 文人 小林 淳哉

出版者

独立行政法人国立高等専門学校機構 函館工業高等専門学校

雑誌

函館工業高等専門学校紀要 (ISSN:02865491)

巻号頁・発行日

vol.53, pp.133-137, 2019 (Released:2019-02-08)

参考文献数

18

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The element composition of a bell (Dotaku) and a metallic piece that were excavated from Peshi- misaki site in Rishiri-island was analyzed with X-ray fluorescence analyzer. The dotaku was a bronze alloy containing a relatively high concentration of Pb. Since fluidity of molten metal increases with increasing Pb content in bronze, Pb rich composition must have been beneficial in casting of a dotaku having complex shape. From the comparison of the shapes with the dotakus excavated from neighboring areas, it is considered that the dotaku from Peshi-misaki site was cast between 8th and 10th century. A concurrently excavated metal piece was a solder alloy contained from Pb and Sn. The solder alloy could have been used for repair of bronzewares casted in the site at that time.

著者

泉 吉紀 酒井 英男 中村 和之 斉藤 大朋

出版者

独立行政法人国立高等専門学校機構 函館工業高等専門学校

雑誌

函館工業高等専門学校紀要 (ISSN:02865491)

巻号頁・発行日

vol.51, pp.68-73, 2017 (Released:2017-01-31)

参考文献数

7

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We conducted ground penetrating radar survey on the Chashi Sites of Shibecharigawa basin of Shinhidaka in Hokkaido, with the purpose of investigating the internal structure of the Chashi. The surveyed sites were Shibechari-Chashi and Hoinashiri-Chashi. Shibechari-Chashi was thought to be the fort of Shakushain, leader of Hidaka Ainu. There was the anomaly likely to be a ditch around Chashi. In the case that it was a buried ditch, Shibechari-Chashi would come to have the largest area in Hokkaido. In Hoinashiri-Chashi, the reflection related to the chashi was gained at the main/center part of the site. Also, the anomaly detected on the west side was thought to be the reaction of the buried ditch. These results showed the Chashi was surrounded with the ditch and strengthened its protection.

著者

新井 沙季 馬場 慎介 中井 泉 中村 和之 塚田 直哉

出版者

独立行政法人国立高等専門学校機構 函館工業高等専門学校

雑誌

函館工業高等専門学校紀要 (ISSN:02865491)

巻号頁・発行日

vol.52, pp.20-38, 2018 (Released:2018-01-31)

参考文献数

17

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Production of lead silicate glass declined by 9th AD in Japan. Instead lead potash silicate glass (K2O-PbO-SiO2), a new compositional type of glass, flowed into Japan from China. Then lead potash silicate glass become a major glass type in the medieval period of Japan. Especially in Hokkaido, glass beads were favored by Ainu culture. So we focus on the circulation of glass in Hokkaido at the Ainu cultural period to understand the glass trade in relation with glass in Honshu. In this study, we analyzed glass beads excavated from sites in southern Hokkaido, which were important bases located between Honshu and central Hokkaido. The samples are excavated from archaeological sites at the periods from the 15th~19th century AD. The analytical results showed that these glass beads can be classified into two types – lead potash silicate glass (K2O-PbO-SiO2) and potash lime silicate glass (K2O-CaO-SiO2). These types of glass are also major types distributed in Hokkaido at the period of Ainu culture. In addition, we have found the presence of a large number of purple glass beads made of lead potash silicate glass utilizing antimony oxide as emulsifier. Interestingly, they are only characteristic to southern part of Hokkaido.

著者

竹内 孝 中村 和之

出版者

独立行政法人国立高等専門学校機構 函館工業高等専門学校

雑誌

函館工業高等専門学校紀要 (ISSN:02865491)

巻号頁・発行日

vol.52, pp.75-84, 2018 (Released:2018-01-31)

参考文献数

4

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The potteries were produced in various sites of southern Sakhalin region and the northern and eastern Hokkaido. These sites belonged to the Jomon culture, the Epi-jomon culture and the Susuya period of Okhotsk colture. The potteries were made by mixing sands in clay and the chemical composition of mixed sands contain geological information of the region where potteries were made. The chemical analysis of soil of potteries can estimate the product sites location. This technique can help clarify the product sites of each potteries and the route of delivery of the potteries.

著者

山本 けい子 寺門 修 竹内 孝 中村 和之 広瀬 義朗 八重樫 忠郎 瀬川 拓郎

出版者

独立行政法人国立高等専門学校機構 函館工業高等専門学校

雑誌

函館工業高等専門学校紀要 (ISSN:02865491)

巻号頁・発行日

vol.52, pp.105-110, 2018 (Released:2018-01-31)

参考文献数

9

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Based on the hypothesis that Hokkaido gold dust was contained in the enormous amount of gold that supported the wealth of the Oshu-Fujiwara clan, we analyzed gold dusts which were obtained from relics excavated in Yanagi-no-Gosho Site in Hiraizumi.In this research, we conducted the analysis using statistical methods such as data similarity, principal component analysis(PCA) and support vector machine(SVM). The target data are elemental analysis data sets of gold on relics excavated from Hiraizumi and they are compared to data sets of gold dust picked in Hokkaido and Tohoku region.Through these statistical analysis, we concluded that the gold on relics excavated from Hiraizumi was closer to the elemental constituents of gold dust picked in Iwate Prefecture. About this Hiraizumi sample, we were not able to estimate that its gold might have been brought from Hokkaido. However, we are thinking that these statistical approaches are useful methods to clarify facts of the trade between the Oshu-Fujiwara clan and indigenous people in Hokkaido.

著者

浦田 清 清野 國安

出版者

独立行政法人国立高等専門学校機構 函館工業高等専門学校

雑誌

函館工業高等専門学校紀要 (ISSN:02865491)

巻号頁・発行日

vol.53, pp.116-123, 2019 (Released:2019-02-08)

参考文献数

10

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The purpose of this study was to investigate the 23 years change of physique and body fat on the students of National Institute of Technology, Hakodate College (N.I.T.H.C.). In the change of height, a significant regression coefficients were obtained except for the 5th grade, and tend to decrease for 23 years. In the change of weight, significant regression coefficients were obtained for 1st, 2nd and 3rd grade, and tend to decrease for 23 years. In the change of body fat, significant regression coefficients were obtained for the 1st, 3rd and 4th grade, and tend to increase for 23 years.

著者

田村 朋美 青野 友哉 中村 和之

出版者

独立行政法人国立高等専門学校機構 函館工業高等専門学校

雑誌

函館工業高等専門学校紀要 (ISSN:02865491)

巻号頁・発行日

vol.52, pp.85-92, 2018 (Released:2018-01-31)

参考文献数

11

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In this study, chemical compositions were reexamined on the glass beads excavated from the Usu-Oyakotsu site in Date City, Hokkaido. As a result, it was possible to clarify that these glass beads are composed of potash lime glass and potash lead glass. In particular, it is noteworthy that the majority was potash lime glass. In addition, it became clear that the potash lime glass is divided into two compositional types, lead - containing type and lead - free type. Especially for lead - containing type, it might be one of the features of potash lime glass distributed in the early Ainu culture period.

著者

須藤 絢

出版者

独立行政法人国立高等専門学校機構 函館工業高等専門学校

雑誌

函館工業高等専門学校紀要 (ISSN:02865491)

巻号頁・発行日

vol.51, pp.21-30, 2017

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As the world becomes increasingly globalized, the situations in which people need to use English in communication will increase. Thus, concerns over TOEIC scores have risen. According to TOEIC test scores published by IIBC: The Institute for International Business Communication, there are small differences of TOEIC test scores at National Institute of Technology students among different grades. However few lectures have been held for all grades at the National Institute of Technology. Therefore, TOEIC special lectures have been conducted for all grades as a preliminary practice. This paper reports on the TOEIC special lectures for voluntary participants of all grades in the National Institute of Technology, Hakodate College. As a result of these lectures, it was found that participation rates decreased as the courses progressed, however end-of-course questionnaires indicated that the remaining participants were satisfied with the lectures. Following this outcome, further lectures of TOEIC should be conducted.

著者

須藤 絢

出版者

独立行政法人国立高等専門学校機構 函館工業高等専門学校

雑誌

函館工業高等専門学校紀要 (ISSN:02865491)

巻号頁・発行日

vol.52, pp.100-104, 2018

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As the world becomes increasingly globalized, the situations in which people need to use English in communication will increase. Thus, concerns over TOEIC scores have risen. Therefore, TOEIC special lectures for voluntary participants of all grades have been conducted at National Institute of Technology, Hakodate College for two years. This paper reports on the effects of the lectures based on the scores and the number of examinees in TOEIC IP. As a result, the score of the participants in these lectures were increased significantly. In addition, the number of examinees were increased more than three times. Therefore, conducting these lectures has resulted in a good effect on the score of participants and the number of examinees. However, the average score of the TOEIC IP was decreased. Considering these results, it can be presumed that these lectures had an effect on the limited students. Moreover, these results suggest that increasing average score as a school is needed.