著者

村上 和男

出版者

海洋調査技術学会

雑誌

海洋調査技術 (ISSN:09152997)

巻号頁・発行日

vol.14, no.2, pp.2_1-2_11, 2002 (Released:2012-03-21)

参考文献数

10

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This paper describes the numerical simulation results of tidal current and water exchange in the Seto Inland Sea. Two kinds of computational conditions were prescribed at the open boundary. One is the simple sinusoidal waves of M2 component for Case-1, and another is the composite waves by 28 tidal components for Case-2. Then water exchange computations between the Seto Inland Sea water and Pacific Ocean water were carried out by using the computed flow field of Case-1. In this study, following conclusions are obtained. The computed tidal harmonic constants of M2 component for both cases agree with the observed harmonic constants of M2 component. Around narrow strait, tidal residual flow of Case-2 is larger than that of Case-1 because of the non-linearity of tidal current. The particles thrown into the computed flow field of Case-2 are more dispersed and transported than those of Case-1 by the influence of the non-linearity of tidal current and tidal residual flow. Comparing the computed salinity distribution with the observed salinity distribution, the case of the diffusion coefficient of 500 m2/s gives the most appropriate result. Using these computed flow field and substance dispersion result, the residence time of the Seto Inland Sea is estimated about 200 days.

著者

Masamichi OGAMI

出版者

グローバルビジネスリサーチセンター・東京大学MERC

雑誌

Annals of Business Administrative Science (ISSN:13474464)

巻号頁・発行日

vol.15, no.4, pp.187-197, 2016-08-15 (Released:2016-08-15)

参考文献数

12

被引用文献数

4

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This paper employs data on patent applications for the glass industry’s float process from 1954 through 2015. Furthermore, it assesses whether the S-curve of technological progress emerges. Assigning time to the horizontal axis, something like the S-curve emerges in the US and Europe but not in Japan. The S-curve represents the physical limits of technology. Specifically, Foster (1986) defined the S-curve as the function that expresses the relation between the amount of effort expended toward performance improvement and its outcome. The magnitude of the effort expended depends on the company as well as social factors. This paper performs company-level analysis using actual data to examine (1) the extent to which companies respond to the demands of the market and (2) the effect of the grant-back clauses in licensing agreements suggested by Ogami (2015).

著者

Sungwoo BYUN

出版者

グローバルビジネスリサーチセンター・東京大学MERC

雑誌

Annals of Business Administrative Science (ISSN:13474464)

巻号頁・発行日

pp.0160531a, (Released:2016-07-20)

参考文献数

11

被引用文献数

1 7

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Once a company begins its development process, putting products into the market as quickly as possible to get a return on investment is the fundamental corporate activity. A product’s time to market can be categorized into the development time for the product and production processes and production ramp-up time. Existing studies have focused on reducing development time by primarily increasing efficiency. However, no matter how much a company shortens its development time, there may be a delay in the return on investment if production ramp-up takes too much time. This paper analyzes the processes of Hyundai Steel, a major Korean steel manufacturer. Moreover, it examines the process of its implementation of blast furnace technology through mass production. The company used a strategy that maximized the learning effect by implementing three blast furnaces with the same specifications in succession and without delay. They planned to implement the blast furnaces with no overlap in the implementation schedule, which enabled the same ramp-up team to start up production successively. Thus, the team was able to leverage the experience gained in ramping up one blast furnace for ramp-ups of subsequent blast furnaces. This learning effect enabled them to successfully reduce the ramp-up time linearly, as shown on a semilog graph.

著者

名和 小太郎

出版者

国立研究開発法人 科学技術振興機構

雑誌

情報管理 (ISSN:00217298)

巻号頁・発行日

vol.59, no.5, pp.340-344, 2016-08-01 (Released:2016-08-01)

参考文献数

15

著者

海津 亜希子

出版者

一般社団法人 日本教育心理学会

雑誌

教育心理学研究 (ISSN:00215015)

巻号頁・発行日

vol.64, no.2, pp.241-255, 2016 (Released:2016-08-08)

参考文献数

55

被引用文献数

8

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早期の段階での算数に焦点を当て通常の学級で実施するアセスメントを開発した。本研究では多層指導モデルMIM(海津, 2010; 海津・田沼・平木・伊藤・Vaughn, 2008)のプログレス・モニタリング(PM)としての機能を有するかについて検証した。対象は小学校1年生400名。MIM-PM算数版を年間通じて定期的に実施した。妥当性の検証では反復測定による分散分析の結果, 実施回における主効果が認められ, 回を経るごとに得点が高くなる傾向が示された。標準化された学力検査算数とも比較的高い相関があった。また, 既存のMIM-PM読み版とテスト・バッテリーを組み, 双方の得点傾向から3群(算数困難群, 高学力群, 低学力群)に分類し, 比較分析を行った。3群の学力検査算数の得点でも差異がみられた。算数困難群は全体の5.15%であった。実施回×学力特性群の2要因混合計画の分散分析を行った結果, 有意な交互作用, 2要因とも主効果が認められた。MIM-PM算数版の実施により把握できた算数困難群や低学力群は, 高学力群のような有意な得点上昇が一貫してみられなかったが, 当該学習に関する直接的な指導が実施されている期間では有意な伸びが確認された。MIM-PM算数版の活用でつまずきの早期把握の可能性が示唆された。

出版者

日本私法学会

雑誌

私法 (ISSN:03873315)

巻号頁・発行日

vol.1950, no.3, pp.A1-A13, 1950-09-30 (Released:2012-02-07)

著者

吉村 豊文

出版者

The Society of Resource Geology

雑誌

鉱山地質 (ISSN:00265209)

巻号頁・発行日

vol.11, no.45-46, pp.22-27, 1961-03-25 (Released:2009-06-12)

参考文献数

2

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A small displacement, about two meters or less, of a manganese ore deposit is called "Hitokase Danso", meaning "one-frame fault". The movement on the fault had evidently occurred before the manganese deposit was formed, and most of the shear zones have been mineralized by various manganese ores. The manganese ore deposit itself, therefore, has not been displaced by the fault movement, although slickensides on such later formed manganese minerals indicate the renewed movement of minor scale along the one-frame fault.

著者

内田 滋夫 村松 康行 住谷 みさ子 大桃 洋一郎

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.24, no.2, pp.149-157, 1989 (Released:2010-02-25)

参考文献数

38

被引用文献数

1 1

著者

Takeshi Otsuki Kazuhiro Shimizu Asako Zempo-Miyaki Seiji Maeda

出版者

日本酸化ストレス学会

雑誌

Journal of Clinical Biochemistry and Nutrition (ISSN:09120009)

巻号頁・発行日

vol.59, no.1, pp.45-48, 2016 (Released:2016-07-01)

参考文献数

22

被引用文献数

5

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Decreases in saliva secretion compromise food mastication and swallowing, reduce mucosal immune function, and increase the risk for oral diseases like dental caries. Chlorella is a green alga that contains a variety of nutrients including amino acids, vitamins, and minerals. In our previous study, Chlorella-derived multicomponent supplementation did not affect salivary flow rates in healthy young individuals, but Chlorella-derived supplementation attenuated a decrease in saliva secretion that was observed during a kendo training camp. Hence, we hypothesized that Chlorella-derived supplementation increases saliva secretion in individuals with lower rates of saliva flow. Sixty-four subjects took Chlorella-derived tablets for four weeks. Before and after supplementation, saliva samples were collected by chewing cotton. In the complete study group, there was no difference in saliva production before and after supplementation (1.91 ± 0.11 ml/min before vs 2.01 ± 0.12 ml/min after). Analysis of subgroups based on saliva production before supplementation found an increase in saliva secretion in the lower saliva flow group (1.18 ± 0.06 vs 1.38 ± 0.08 ml/min), but no change in the higher saliva flow group (2.63 ± 0.11 vs 2.64 ± 0.15 ml/min). These results suggest that Chlorella-derived multicomponent supplementation increases saliva production in individuals with lower levels of saliva secretion.

著者

Hiroaki Satoh Tetsuya Ohira Masato Nagai Mitsuaki Hosoya Akira Sakai Tsuyoshi Watanabe Akira Ohtsuru Yukihiko Kawasaki Hitoshi Suzuki Atsushi Takahashi Gen Kobashi Kotaro Ozasa Seiji Yasumura Shunichi Yamashita Kenji Kamiya Masafumi Abe

出版者

一般社団法人 日本内科学会

雑誌

Internal Medicine (ISSN:09182918)

巻号頁・発行日

vol.55, no.15, pp.1967-1976, 2016-08-01 (Released:2016-08-01)

参考文献数

23

被引用文献数

2 31

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Objective The Great East Japan Earthquake and the Fukushima Daiichi nuclear disaster forced the evacuation of residents and led to many changes in the lifestyle of the evacuees. A comprehensive health check was implemented to support the prevention of lifestyle-related disease, and we analyzed changes in lipid metabolism before and after these disasters. Methods Subjects included Japanese men and women living near the Fukushima Daiichi nuclear power plant in Fukushima Prefecture. Annual health checkups, focusing on metabolic syndromes, were conducted for persons ≥40 years of age by the Heath Care Insures. Results A total of 27,486 subjects underwent a follow-up examination after the disaster, with a mean follow-up of 1.6 years. Following the disaster, the prevalence of hypo-high-density lipoprotein (HDL) cholesterolemia increased significantly from 6.0% to 7.2%. In the hypo-HDL cholesterolemia group, the body mass index (BMI), blood pressure, and LDL-C level increased significantly in men after the disaster. On the other hand, in the normal HDL-C level group, the BMI, blood pressure, glucose and lipid metabolism, and liver function were adversely affected. The decrease in HDL-C was significantly greater in evacuees than non-evacuees in the normal HDL-C level group. Furthermore, a multivariate logistic regression analysis showed that the evacuation was significantly associated with the incidence of hypo-HDL cholesterolemia. Conclusion This is the first study to evaluate how the evacuation affected the incidence of hypo-HDL cholesterolemia and led to an increase in cardiovascular disease. This information may be important in the follow-up and lifestyle change recommendations for evacuees.

著者

Pandit Oudh UPADHYAYA

出版者

Mathematical Institute, Tohoku University

雑誌

Tohoku Mathematical Journal, First Series (ISSN:00408735)

巻号頁・発行日

vol.27, pp.349-356, 1926 (Released:2010-03-19)

著者

澤田 耕司 高橋 桂太 苗村 健

出版者

一般社団法人 映像情報メディア学会

雑誌

映像情報メディア学会誌 (ISSN:13426907)

巻号頁・発行日

vol.62, no.2, pp.256-261, 2008-02-01 (Released:2010-05-01)

参考文献数

12

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We have been developing a thermo-key system that segments human regions from video in real-time using thermal information. We developed a new segmentation method for this system based on Bayesian estimation, which uses both chroma and thermal information integratively. Segmentation algorithms were previously based on a simple threshold processing of thermal images, which often results in wrong segmentation of objects/environments whose temperatures are close to body temperature. Trained with only a few sets of chroma and thermal images, our algorithm can extract human regions from video with much higher accuracy compared to previous algorithms.

著者

Hwi-Young Cho Ki-Tae Kim Jin-Hwa Jung

出版者

理学療法科学学会

雑誌

Journal of Physical Therapy Science (ISSN:09155287)

巻号頁・発行日

vol.28, no.7, pp.2154-2158, 2016 (Released:2016-07-29)

参考文献数

17

被引用文献数

18

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[Purpose] This study investigated the effects of neurofeedback (NFB) and computer-assisted cognitive rehabilitation (CACR) on the relative brain wave ratios and activities of daily living (ADL) of stroke patients. [Subjects and Methods] Forty-four participants were randomly allocated to the NFB (n=14), CACR (n=14), or control (CON) (n=16) groups. Two expert therapists provided the NFB, CACR, and CON groups with traditional rehabilitation therapy in 30-minute sessions, 5 times a week, for 6 weeks. NFB training was provided only to the NFB group and CACR training was provided only to the CACR group. The CON group received traditional rehabilitation therapy only. Before and after 6 weeks of intervention, brain wave and ADL evaluations were performed, and the results were analyzed. [Results] The relative ratio of beta waves, only showed a significant increase in the frontal and parietal areas of the NFB group. Significant changes in ADL were shown by all three groups after the intervention. However, there were no significant differences between the NFB and CACR groups and the CON group. [Conclusion] Our results suggest that CACR and NFB are effective at improving cognitive function and ADL of stroke patients.

著者

酒井 浩之 増山 繁

出版者

一般社団法人 言語処理学会

雑誌

自然言語処理 (ISSN:13407619)

巻号頁・発行日

vol.12, no.5, pp.207-231, 2005-10-10 (Released:2011-03-01)

参考文献数

17

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略語とその略語に対する元の語 (原型語と定義) との対応関係を, コーパスから自動的に獲得する手法を提案する.本手法は, 同一の再現率においてより高い精度を達成できるように, 我々の既提案手法 (酒井, 増山2002) を改良したものである.このような知識は, 情報検索や文書要約などにおいて有用である.本手法は, まず, 略語候補とそれに対応した原型語の候補を, それらを構成している文字情報から獲得する.そして, 略語候補と原型語の候補の名詞問類似度を計算することで, 略語とその原型語との対応関係を取得する.例えば, 略語「原発」に対して, 原型語「原子力発電所」のような対応関係を取得できる.なお, 本手法はコーパスに出現する各名詞が略語か原型語であるかどうかの情報が与えられていることを前提としていない.評価の結果, 名詞間類似度の閾値を0.4に設定した場合, 精度73.4%の結果を得た.本手法と既提案手法とを比較した結果, 同一の再現率においてより高い精度を達成し, 既提案手法よりも有効な手法であることを確認した.

著者

仲谷 一宏 中野 秀樹

出版者

日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

vol.42, no.3-4, pp.325-328, 1995-11-25 (Released:2010-06-28)

参考文献数

9

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南大西洋で漁獲されたツノザメ目ツノザメ科のオジロザメScymnodalatias albicauda の1尾の妊娠個体から発生中の59個体の胎仔を見いだした.胎仔の性別はオス33個体, メス26個体で, オス: メスの性比は1: 0.79, 大きさは全長157mmから192mmであった.本個体はマグロ延縄で漁獲されたが, 捕獲時の記録によると, いくつかの胎仔が総排出腔より海中に落ちたという.したがって, 60個体以上の胎仔をもっていたと推測される.サメ類の1腹の胎仔数は種類や個体の大きさにより様々であるが, ツノザメ類で知られている1腹の胎仔数は36個体までで, 大部分は20個体以下である.本研究ではオジロザメから1腹59個体の胎仔を見いだしたが, これは今までのツノザメ類の記録をはるかに上回る数で, ツノザメ類では最多, サメ類全体からみてもヨシキリザメ (135個体), カグラザメ (108個体) に次ぐ3番目の胎仔数である.なお, 各胎仔は大きな外卵黄嚢をもち, 腹腔内の3分の2の長さにおよぶ内卵黄嚢が形成されていた.内卵黄嚢は腸の始部 (十二指腸部) に直接開口し, 腸内にも卵黄物質が見られた.生殖方法は卵胎生 (卵黄物質にのみ依存する非胎盤性の胎生) であると考えられる.

著者

加藤 好郎

出版者

一般社団法人 情報科学技術協会

雑誌

情報の科学と技術 (ISSN:09133801)

巻号頁・発行日

vol.66, no.8, pp.438-438, 2016-08-01 (Released:2016-08-01)

著者

清嶋 展弘

出版者

一般社団法人 日本繊維製品消費科学会

雑誌

繊維製品消費科学 (ISSN:00372072)

巻号頁・発行日

vol.44, no.10, pp.571-577, 2003-10-25 (Released:2010-09-30)

参考文献数

3

著者

Masaru Murakami Chikako Matsuba Hideo Fujitani

出版者

日本遺伝学会

雑誌

Genes & Genetic Systems (ISSN:13417568)

巻号頁・発行日

vol.76, no.1, pp.25-32, 2001 (Released:2002-05-31)

参考文献数

23

被引用文献数

32 41

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The hyper-variable segments (323∼327 bp) of the mitochondrial D-loop for 169 Carassius auratus fishes in Japan were amplified by the polymerase chain reaction and the amplified products were sequenced directly and compared. A dendrogram showing three major clusters was generated with the sequence data for 37 haplotypes at 66 polymorphic sites. One cluster (cluster I) exclusively consisted of the gengorobuna, which was regarded as an independent (sub) species. The triploid ginbuna belonged to two remaining clusters, mainly in the diploid ginbuna cluster (cluster III) and partially in the goldfish cluster (cluster II). This finding suggests that the triploid ginbuna has been derived from two different maternal lineages. The triploid ginbuna was considered to have come into existence during the last ice age on the basis of this phylogenetic data. No geographic differentiation was observed with respect to the triploid ginbuna sampled at three different localities in Japan; the Shibuta River in Kanagawa, Lake Imba in Chiba and Lake Biwa in Shiga. The phylogenetic tree also demonstrated a monophyletic relationship amongst the nigorobuna, the nagabuna and the ginbuna, sharing cluster III. The nigorobuna and nagabuna populations have most likely arisen from geographic and temporal variations within the ginbuna populations. We also discuss the evolutionary origin of the triploid in view of its paternal ancestors.

著者

雨宮 一彦 田口 文章

出版者

社団法人 日本感染症学会

雑誌

感染症学雑誌 (ISSN:03875911)

巻号頁・発行日

vol.68, no.2, pp.177-182, 1994-02-20 (Released:2011-09-07)

参考文献数

13

被引用文献数

2 5

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業務用に使用されているシャンプーとリンスの細菌汚染の実態を知ることを目的に, 無作為に抽出した理容店と美容店17施設から分与して貰った39検体の洗髪液について, 血液寒天培地を用いて, 細菌の分離試験を実施した. 原液を希釈して用いるシャンプーやリンス (希釈型, 21検体) と, ボトルから直接使用するもの (ポンプ型, 18検体) の細菌検出率は, 各々76.2%と33.3%であった. 細菌が検出されたシャンプーとリンス中の総細菌数は最少1.0×102CFU/mlから最大7.0 ×107CFU/mlであった. 分離菌は, Serratia marcescensが43.3%と最も多く, 他にEnterobacter aerogenes, Klebsiella pneumoniaeなどの腸内細菌とPseudomonas aeruginosaやPseudomonas cepacia などのブドウ糖非発酵グラム陰性桿菌等日和見感染の原因となりうる細菌であった.<BR以上の結果は, 業務用シャンプーとリンスが細菌に汚染されている実態と, 洗髪剤の衛生的な取り扱いの必要性を明らかにした.

出版者

国立研究開発法人 科学技術振興機構

雑誌

情報管理 (ISSN:00217298)

巻号頁・発行日

vol.59, no.5, pp.356-357, 2016-08-01 (Released:2016-08-01)