DSpace コレクション: 2022-03
http://hdl.handle.net/11133/4000
2022-032024-03-29T15:54:11Z河川間隙動物(特にコナガカワゲラ属幼虫)の生息環境の特徴
http://hdl.handle.net/11133/4004
タイトル: 河川間隙動物(特にコナガカワゲラ属幼虫)の生息環境の特徴
著者: 杉江, 俊城; 内田, 臣一
抄録: We reexamined numerous specimens of nymphs, exuviae and adults of the genera Flavoperla and Paragnetina (Inscta, Plecoptera, Perlidae; both emerge in summer and have more than 2 years of nymphal period) collected mainly in the Yahagi River system, central Honshu, Japan, from 2000 to 2022 and preserved in Aichi Institute of Technology. The number of Flavoperla nymphs was far fewer than that of Paragnetina nymphs. However, for exuviae and adults, the number of Flavoperla was similar (exuviae) to, or fewer (adults) than that of Paragnetina. We excavated dry riverbeds just off the water at seven sites in the Yahagi River system from 2019 to 2021 to collect hyporheos. At six of the seven sites, we collected animals that could be considered hyporheos (nymphs of Flavoperla and Leuctridae, Plecoptera, larvae of Stenelmis, Elmidae, Coleoptera and Ceratopogonidae, Diptera) or groundwater animals (Bathynellacea, Pseudocrangonyctidae, both Crustacea). The excavations in which nymphs of Flavoperla and Leuctridae were collected tended to have high oxygen saturation and low dissolved nitrogen and dissolved phosphorus. The Pseudocrangonyctidae and the larvae of Stenelmis and Ceratopogonidae were collected mostly in the excavations with high oxygen saturation and low dissolved nitrogen and phosphorus, but a small number of the animals were also collected in the excavations with low oxygen saturation and high dissolved nitrogen and phosphorus. The Bathynellacea were collected only in the excavations with low oxygen saturation and high dissolved nitrogen and dissolved phosphorus. There was no clear relationship between the estimated amount of sediment transport and the number of these animals collected. At Odo in the Yahagi River, benthic animals were collected on the adjacent riverbed near the excavations where the hyporheos were collected. Larvae of Stenelmis and Ceratopogonidae, which were collected in large numbers in the excavations, were also collected on the adjacent riverbed with benthic animals, but in much smaller numbers. These results suggest that the low numbers of Flavoperla nymphs collected by the usual methods for benthos may be due to their habitat in hyporheic zone. Other candidates for hyporheos include the nymphs of Leuctridae and the larvae of Stenelmis and Ceratopogonidae. Most of these animals showed a preference for the waters with high oxygen saturation. Although no relationship was found between the numbers of these animals and the estimated amount of sediment transport, strong disturbance of the riverbed is thought to increase oxygen saturation in hyporheic zone, and therefore, Flavoperla nymphs etc. could be used as indicators for strong riverbed disturbance.2022-03-30T15:00:00Z極低電圧動作かつ同相入力電圧範囲を持つダイナミックコンパレータの設計
http://hdl.handle.net/11133/4005
タイトル: 極低電圧動作かつ同相入力電圧範囲を持つダイナミックコンパレータの設計
著者: 伊藤, 裕也; 増渕, 友一; 五島, 敬史郎
抄録: A double-tail type comparator has been known as a low power consumption used in Successive approximation resister type Analog to Digital Converter (SAR ADC). However, in the case of the wide input common mode voltage range is required, it is necessary to change the circuit configuration. In this paper, we designed a comparator with a wide input common-mode voltage and a ultra-low voltage operation. Our proposed comparator improved the input common-mode voltage by about 50% , and the power consumption achieved to same as the conventional one.2022-03-30T15:00:00Zカンボジアにおける凄惨な過去の継承に関する予備的考察 : 教師教育者の経験と語りから
http://hdl.handle.net/11133/4006
タイトル: カンボジアにおける凄惨な過去の継承に関する予備的考察 : 教師教育者の経験と語りから
著者: 千田, 沙也加
抄録: This paper analyzes the inheritance of past tragedy in the case of Pol-Pot-era Cambodia. I focus on teacher educators’ experiences and narratives to identify how it was inherited within the home and the local community, how it was taught into public education, and what to hope for the next generation. The findings are as follows: 1) Both “bad and good” things were inherited from informants’ family and neighbors. However, the true story of the violence of the era was not transmitted. 2) In the 1990s, modern history education, including that of the Pol Pot era, was restricted in public education. However, interviews revealed that textbooks published in the 1980s were used with the intention of propagating anti-Pol Pot ideas until the early 1990s. 3) There was a common understanding that knowledge of the past tragedy of the Pol Pot era should be transmitted in order to establish peace. For that purpose, they sought to explain its causes and effects in detail. In addition, an informant reported that inheriting knowledge of the Pol Pot’s era afforded an important opportunity to contemplate the true democracy and the nation.2022-03-30T15:00:00Z英文学とその翻訳/翻案における : 地球言語としての英語
http://hdl.handle.net/11133/4007
タイトル: 英文学とその翻訳/翻案における : 地球言語としての英語
著者: ラングリッツ(菅原), 久佳
抄録: This study refers to the shift from English literature to “English that media is recognized,” “English that translation is recognized,” the shift to “English Language literature,” and “English as global language” by analyzing the literary perspective and its features of Kazuo Ishiguro, who won Novel Literature Award.2022-03-30T15:00:00Z