著者
酒井 高良 涌井 優尚 赤松 隆
出版者
公益社団法人 土木学会
雑誌
土木学会論文集 (ISSN:24366021)
巻号頁・発行日
vol.79, no.4, pp.22-00341, 2023 (Released:2023-04-20)
参考文献数
30
被引用文献数
1

本研究では,超大規模離散空間におけるFujita-Ogawa (FO)モデルの効率的数値解法を提案する.具体的にはまず,FOモデルにおける主体の確定的選択行動をランダム効用理論(ロジット・モデル)に基づき一般化した確率的FOモデルを提示する.続いて,この確率的FOモデルの等価最適化問題を導出し,さらにその問題が,企業の立地分布を決定するマスター問題と,家計の居住地・勤務地分布を決定するサブ問題とに階層分解できることを明らかにする.ここで,サブ問題はエントロピー正則化付きの最適輸送問題,マスター問題は制約条件付き非凸計画問題の数理構造を持つ.これらの数理構造を活かし,サブ問題に対してはバランシング法を,マスター問題に対しては加速勾配法を適用する階層的最適化アルゴリズムを構築する.
著者
涌井 優尚 酒井 高良 赤松 隆
出版者
公益社団法人 土木学会
雑誌
土木学会論文集 (ISSN:24366021)
巻号頁・発行日
vol.79, no.4, pp.22-00301, 2023 (Released:2023-04-20)
参考文献数
20

本研究では,一起点多終点ネットワークにおける経路選択DUE配分の効率的解法を開発した.具体的には,まず待ち行列にpoint queueを仮定したうえで,DUE配分を線形相補性問題として定式化した.そしてこの問題と等価な最適化問題に対し,大規模問題に適用可能な効率的アルゴリズムを提案した.数値実験を通して提案解法は,既存研究における数値計算例を大幅に上回る規模の巨大ネットワークに対しても,素朴な解法の100倍から1000倍程度以上の計算効率を誇り,かつきわめて高精度な均衡解が計算できることが示された.
著者
松本 啓作 平島 崇男
出版者
一般社団法人 日本鉱物科学会
雑誌
岩石鉱物科学 (ISSN:1345630X)
巻号頁・発行日
vol.35, no.2, pp.97-108, 2006 (Released:2006-04-10)
参考文献数
6
被引用文献数
4 4

We propose a new modal analysis method using a scanning electron probe microanalyzer with an energy dispersive X-ray analytical system. The procedure is based on the multipoint analysis software of EDAX® Inc. The analysis points are selected as equal interval grids in the secondary electron image (SEI), which covers 3.2 × 2.45 mm2 area as the maximum. The mineral identification of each X-ray spectrum can be done by the combination of the assemblage and content of mineral forming elements. This method can identify most of rock-forming minerals easily, what is an advantage comparing with the conventional modal analysis method under the optical microscope. To obtain the reliable modal data, we can adjust grid intervals depending on the grain size of rock forming minerals and the numbers of the beam acquisition areas depending on the degree of heterogeneity of samples. This technique is available for the rock sample with average grain size between 0.2 and 2.0 mm by the restriction of the minimum enlargement size of the SEI. The new method gives the concordant modal data to those obtained by the conventional point-counting method by several beam acquisition areas for homogeneous samples and by a few tens beam acquisition areas for heterogeneous samples.
著者
鈴木 圭輔 平田 幸一
出版者
日本神経治療学会
雑誌
神経治療学 (ISSN:09168443)
巻号頁・発行日
vol.35, no.4, pp.545-552, 2018 (Released:2019-04-22)
参考文献数
50

Sleep disturbance has been recognized as an important non–motor symptom of Parkinson's disease, which can impair the quality of life of patients. However, adequate screening and management of sleep disturbances coexisting with Parkinson's disease are still challenging issues. The causes of sleep disturbances include disease–related pathological changes in the brainstem and hypothalamus, which modulate REM / non–REM sleep and sleep–wake cycle, the effects of nighttime motor / non–motor symptoms including restlessness of the limbs and REM sleep behavior disorder, and the co–occurrence of other sleep disorders, such as sleep apnea syndrome. We provide an updated review of sleep disturbances in patients with Parkinson's disease and related disorders.
著者
本田 謙一 田口 智大 室井 翔太 佐藤 匠 佐藤 史崇 小口 貴雄
出版者
一般社団法人 日本リモートセンシング学会
雑誌
日本リモートセンシング学会誌 (ISSN:02897911)
巻号頁・発行日
vol.42, no.3, pp.185-189, 2022-08-10 (Released:2022-11-26)
参考文献数
6

In this paper, an example of displacement monitoring of landslides using interferometric SAR analysis is reported. The displacement of the mountain landslides was separated into vertical displacement and east-west displacement by 2.5-dimensional analysis using ALOS-2 with multi-temporal and multi-orbital data. The direction and the boundary of displacement were consistent with the results of displacement measured by airborne laser profiler between 4 years and also with the field survey.
著者
Hayato Tada Mika Hori Kota Matsuki Masatsune Ogura Atsushi Nohara Masa-aki Kawashiri Mariko Harada-Shiba
出版者
Japan Atherosclerosis Society
雑誌
Journal of Atherosclerosis and Thrombosis (ISSN:13403478)
巻号頁・発行日
vol.29, no.6, pp.816-824, 2022-06-01 (Released:2022-06-01)
参考文献数
25
被引用文献数
5 18

Aim: The 2017 Japan Atherosclerosis Society (JAS) familial hypercholesterolemia (FH) criteria adopt a cut-off value of ≥ 9 mm of Achilles tendon thickness (ATT) detected by X-ray as one of the three key items. This threshold was determined based on an old data evaluating the ATT of 36 non-FH individuals that was published in 1977. Although the specificity of these clinical criteria is extremely high due to a strict threshold, there are a significant number of patients with FH whose ATT <9 mm. We aimed to determine a cut-off value of ATT detected by X-ray to differentiate FH and non-FH based on genetic diagnosis.Methods: The individuals (male/female=486/501) with full assessments of genetic analyses for FH-genes (LDLR and PCSK9), serum lipids, and ATT detected by X-ray at the Kanazawa University Hospital and National Cerebral and Cardiovascular Center Research Institute were included in this study. Receiver operating characteristic (ROC) analyses were conducted to determine a better cut-off value of ATT that predicts the pathogenic mutation of FH. Results: The ROC analyses revealed that the best cut-off values of ATT are 7.6 mm for male and 7.0 mm for female, with the sensitivities/specificities of 0.83/0.83 for male and 0.86/0.85 for female, respectively. If the thresholds of ATT of 8.0/7.5 mm and 7.5/7.0 mm were applied to the diagnosis of male/female FH, the sensitivities/specificities predicting the pathogenic mutation of FH by the 2017 JAS FH clinical criteria would be 0.82/0.90 and 0.85/0.88, respectively.Conclusions: These results suggest that the cut-off value of ATT detected by X-ray is obviously lower than 9.0 mm, which was adopted by the 2017 JAS FH clinical criteria.
著者
高柳 茂代 黒川 理加 河村 フジ子
出版者
The Japan Society of Home Economics
雑誌
日本家政学会誌 (ISSN:09135227)
巻号頁・発行日
vol.43, no.6, pp.519-523, 1992-06-15 (Released:2010-03-10)
参考文献数
13

ゼラチンゾルにパイナップル汁を添加したゾルおよびゲルの特性について検討した結果を要約すると次の通りである.(1) パイナップルの頭部は, 中央部, 尾部に比べて, プロテアーゼ活性が強い.(2) 10%ゼラチンゾルにパイナップル汁を全ゾル量の25%添加した場合でも, 添加直後よりゾルの粘度が低下する.5%以上添加では, ゲル形成能は全く消失する.(3) ゼラチンゾルに, あらかじめ放置したパイナップル汁を添加すると, ゾルの粘度低下が抑制された.(4) ゼラチンゾルのpHを5.0または8.0にしてパイナップル汁を添加すると, ゾルの粘度およびゲルの破断応力は最低となるが, ゼラチンゾルのpHを3.0または9.0にすると, 十分なゲル形成能を維持し得た.
著者
春山 成子 大矢 雅彦
出版者
公益社団法人 日本地理学会
雑誌
地理学評論 Ser. A (ISSN:00167444)
巻号頁・発行日
vol.59, no.10, pp.571-588, 1986-10-01 (Released:2008-12-25)
参考文献数
32
被引用文献数
2 2

隣り合って流れる庄内川,矢作川の河成平野の地形分類図を作成した.地形要素の組合わせは庄内川は小型自然堤防+高位デルタ+低位デルタ,矢作川は扇状地的自然堤防+高位扇状地的デルタ+低位扇状地的デルタとなっており,著しい地域差が見られた. この原因を次のように考えた. (a) 矢作川は高度分布,高度分散量,起伏量平均値共に大きく,かつ風化しやすい花崩岩からなるため,山地崩壊が庄内川より大である. (b) 庄内川は河川縦断勾配が緩でかつ盆地,峡谷の繰り返しとなっており,下流平野へ流下する砂礫量は矢作川より少ない. (c) 縄文海進時に堆積した海成層上の河成沖積層の厚さは庄内川平野の方が薄い. (d) 氾濫原の幅は庄内川平野では上,中流は狭く,下流は広い.このため,上,中流では河道変遷は少なく,洪水は集中型となるが,下流は変遷が大きく,溢流型となる.矢作川は氾濫原の幅の変化は少なく,洪水は平野上流側はショートカット型,下流側は盗流型となっている.
著者
川島 秀一
出版者
一般社団法人 日本数学会
雑誌
数学 (ISSN:0039470X)
巻号頁・発行日
vol.61, no.3, pp.248-269, 2009 (Released:2012-02-01)
参考文献数
40
著者
板垣 俊一
出版者
日本文学協会
雑誌
日本文学 (ISSN:03869903)
巻号頁・発行日
vol.31, no.4, pp.50-61, 1982-04-10 (Released:2017-08-01)

In one of its aspects the cherry is a symbol of nationalism, a symbol developed by the claim of Edo herbal studies that its only natural home is Japan. But the cherry has another symbolic aspect nurtured by folklore. This is the cherry as a tree that attracts spirits, that has flowers associated with fertility. From the folkloric point of view, the cherry is a symbol of fertility, death, and rebirth. The classical scholar Motoori Norinaga has long been considered a fountainhead of nationalistic thought. By reassessing his relation to the cherry (which he regarded as his personal symbol) from the folkloric point of view, and by focussing on the aspect of rebirth, the sources of his narcissism become clear. Moreover, it becomes evident that his literary views are fundamentally linoked to his concept of vitality.
著者
藤 剛三郎 譯
出版者
社団法人 繊維学会
雑誌
繊維素工業 (ISSN:18842283)
巻号頁・発行日
vol.6, no.12, pp.267-269, 1930-12-15 (Released:2009-11-12)
参考文献数
1
著者
満薗 勇
出版者
Business History Society of Japan
雑誌
経営史学 (ISSN:03869113)
巻号頁・発行日
vol.44, no.1, pp.1_31-1_57, 2009 (Released:2012-03-23)
被引用文献数
3

The purpose of this article is to examine the business model of the mail order of the department store during the prewar period in Japan. With the maintenance of postal services, the major kimono retailers which were changing to department store began the mail order business in 1890-1900s. They considered it to be central means to go into the local market. It was intended for people of the wealthy groups and continued developing until the beginning in 1920s.The business model of it was characterized by a choosing agent. That is to say, a salesclerk of the mail order section considered an appointed price and a taste of each customer and chose goods in place of the customer. This model was obliged to be started because it took too much a cost to make the catalogue which contained all items. It was a cause to raise the cost that Japanese consumption markets were various complicatedly. However, considering that people in the countryside did not have enough information about urban goods because of the undeveloped media, this model had convenience and rationality. For the purpose of choosing the suitable goods, the salesclerk sometimes went on a business trip to do sales and tried to grasp the characteristic of local markets and the taste of customers. In addition, each department store raised the brand image of the store by an advertisement and guaranteed returning or exchanging goods.After the latter half of 1920s, the sales of the mail order business did not expand because a popularization strategy did not succeed in contrast with store - based sales. The catalogue which contained all items was not made after all; consequently orders from the people of the middle groups, who got enough information from ladies' magazines and liked to choose goods by oneself, did not increase.