著者
清水 忠昭 木本 雅也 吉村 宏紀 井須 尚紀 菅田 一博
出版者
日本神経回路学会
雑誌
日本神経回路学会誌 (ISSN:1340766X)
巻号頁・発行日
vol.11, no.4, pp.167-175, 2004-12-05 (Released:2011-03-14)
参考文献数
14

We showed a new scheme to characterize speech from LSP parameters by 5 layers sandglass type nonlinear neural network (SNN(NL5)). In order to synthesize speech, we take advantage of useful abilities of SNN(NL5) for compressing and restoring the information. We performed learning experiments on LSP parameters of 5 vowels to investigate the ability of SNN. The followings were verified, 1) the distribution of LSP parameters compressed by SNN(NL5) are similar to the distribution of F1-F2 formants plane. 2) Nonlinear output function of neural elements in second and fourth layers of SNN(NL5) work effectively from view point of separating the distribution of vowels. 3) In order to prevent SNN(NL5) from over learning, there exists the optimum numbers of neural elements in second and fourth layers. For 14 orders of LSP parameters, this number was determined to be 20. 4) There is a preferable property on the plane to separate the vowels distinctively when the restoring error of LSP parameters becomes less. 5) SNN(NL5) can restore the LSP parameters with accuracy enough to synthesize speech from the compressed parameters.
著者
花田 良子 佐藤 史隆 廣安 知之 三木 光範 鈴木 泰博
出版者
日本ソフトウェア科学会
雑誌
コンピュータ ソフトウェア (ISSN:02896540)
巻号頁・発行日
vol.24, no.1, pp.1_91-1_100, 2007 (Released:2007-06-11)
被引用文献数
3

本研究では,ネットワークの特性量を目的関数とした最適化問題として定式化し,ネットワークを設計する.設計されたネットワークの持つ特性と複雑ネットワークの持つ特性とを調査,比較して検証することで,一般的に複雑ネットワークが有する特性は何に起因しているかを探求するアプローチを提案する.本論文では,その基礎的な検討として,最適化手法に遺伝的アルゴリズム (Genetic Algorithms: GA) を用いた場合のネットワーク生成の検討と,設計したネットワークを複雑ネットワークの視点から検討する.本論文で,目的とした特徴は,平均パス長やクラスター係数である.設計したネットワークを検討した結果,これらの目的には一部トレードオフの関係が存在することが明らかとなり,単一目的のGAよりも多目的GAの適用により検討することが適当であることが明らかとなった.
著者
Kiwamu HANAZONO Shinya FUKUMOTO Kazuko HIRAYAMA Kazuaki TAKASHIMA Yoshihisa YAMANE Masahiro NATSUHORI Tsuyoshi KADOSAWA Tsuyoshi UCHIDE
出版者
公益社団法人 日本獣医学会
雑誌
Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日
vol.74, no.11, pp.1477-1482, 2012 (Released:2012-12-01)
参考文献数
22
被引用文献数
3 9 1

Gastrointestinal stromal tumor (GIST), a mesenchymal neoplasm affecting the gastrointestinal tract, shows a variety of clinical behaviors from inactive benign to aggressive malignant in dogs. In this study, the feasibility of using clinically significant ultrasonographic features to predict the metastatic potential of canine GIST was investigated through comparison with actual metastatic incidence and findings of malignancy obtained by postoperative pathological examination. Ultrasonographic features, including large tumor size, irregular margin and heterogeneous internal echogenicity with large hypoechoic areas, related closely with the presence of metastasis as well as a high-risk ranking by the human classification system according to pathological findings. Based on these ultrasonographic features, the potential of metastasis in canine GIST could be preoperatively predicted.
著者
Haengbok CHEON Wooshin CHOI Youngjae LEE Donghoon LEE Juhyung KIM Ji-Houn KANG Kijeong NA Jinhwa CHANG Dongwoo CHANG
出版者
公益社団法人 日本獣医学会
雑誌
Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日
vol.74, no.11, pp.1461-1467, 2012 (Released:2012-12-01)
参考文献数
30
被引用文献数
5 19 1

The aim of this study was to assess age-related changes and anatomic variation in trabecular bone mineral density (tBMD) using quantitative computed tomography (QCT) in normal cats. Seventeen normal cats were included in this study and divided into the following 3 age groups:6 years (n=3). A computed tomographic scan of each vertebra from the 12th thoracic to the 7th lumbar spine and the pelvis was performed with a bone-density phantom (50, 100 and 150 mg/cm3, calcium hydroxyapatite, CIRS phantom®). On the central transverse section, the elliptical region of interest (ROI) was drawn to measure the mean Hounsfield unit (HU) value. Those values were converted to equivalent tBMD (mg/cm3) by use of the bone-density phantom and linear regression analysis (r2 >0.95). The mean tBMD value of the thoracic vertebrae (369.4 ± 31.8 mg/cm3) was significantly higher than that of the lumbar vertebrae (285 ± 58.1 mg/cm3). The maximum tBMD occurred at the T12, T13 and L1 levels in all age groups. There was a statistically significant difference in the mean tBMD value among the 3 age groups at the T12 (PPP=0.013), respectively. The present study suggests that age-related changes and anatomic variation in tBMD values should be considered when assessing tBMD using QCT in cats with bone disorders.
著者
Daisuke HASEGAWA Kazuyuki UCHIDA Takayuki KUWABARA Shunta MIZOGUCHI Naoko YAYOSHI Michio FUJITA
出版者
公益社団法人 日本獣医学会
雑誌
Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日
vol.74, no.11, pp.1517-1521, 2012 (Released:2012-12-01)
参考文献数
20
被引用文献数
1 8

A 9 year-old, neutered, male French Bulldog showing cluster seizures was diagnosed with a glioma in the right piriform cortex by MRI. Hypofractionated radiation therapy (RT) was performed using a linear accelerator. Although the lesion had involuted significantly at 2 months after RT, recurrence was observed at 4 months after RT. Chemotherapy was started using CCNU (60 mg/m2 every 6–9 weeks) and was continued for one year. Follow-up MRI revealed involution of the lesion and the intervals of CCNU were increased to every 9–14 weeks. Two years after the first presentation, the dog suffered status epilepticus, followed by deficits of left sided postural reaction with cognitive dysfunction. The dog died on day 910, and histopathological diagnosis confirmed anaplastic oligodendroglioma.
著者
Lee-Shuan LIN Yuko KAYASUGA Nobuyuki SHIMOHATA Hiroyuki KAMATA Shigeki SUZUKI Ryosuke ECHIGO Manabu MOCHIZUKI Ung-Il CHUNG Nobuo SASAKI
出版者
公益社団法人 日本獣医学会
雑誌
Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日
vol.74, no.11, pp.1511-1516, 2012 (Released:2012-12-01)
参考文献数
41
被引用文献数
2 2

Trehalose has several novel anti-inflammatory and cell-protective functions. We hypothesized that lyophilized aspirin/trehalose could decrease the severity of aspirin-induced gastropathy. Thirteen dogs were assigned into aspirin, lyophilized aspirin/trehalose, and control groups, and the gastric lesions were assessed on gastroscopy with the modified Lanza scale. Another 6 dogs were used to measure the plasma aspirin concentration by high-performance liquid chromatography after aspirin or lyophilized aspirin/trehalose administration. The results indicated that lyophilized aspirin/trehalose induced less gastric ulceration than aspirin despite maintaining therapeutic concentrations of plasma aspirin in both the groups. Lyophilized aspirin/trehalose might be a solution to decrease aspirin-induced gastropathy.
著者
Hideharu OCHIAI Ken ONDA Kikumi OGIHARA Yuko NAYA Hiroki SUGIYAMA Takuya MARUO
出版者
公益社団法人 日本獣医学会
雑誌
Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日
vol.74, no.11, pp.1505-1510, 2012 (Released:2012-12-01)
参考文献数
24
被引用文献数
1 7

A full-length cDNA sequence of canine Na-dependent neutral amino acid transporter (ASCT2) and its distribution were determined. The sequence was 2,090 bp long and was predicted to encode 544 amino acid polypeptides. The amino acid sequence deduced from canine ASCT2 showed 90% similarity to that of humans and mice. Northern blot analysis revealed ASCT2 expression in the kidney, heart, lung and muscles, and Western blot analysis using anti-human ASCT2 antiserum detected the bands at 60 and 65 kDa in membrane protein of the lung. RT-PCR analysis revealed ASCT2 expression in all the tissues examined.
著者
NARUYA SAITOU RYOSUKE KIMURA HITOSHI FUKASE AKIRA YOGI SADAYUKI MURAYAMA HAJIME ISHIDA
出版者
日本人類学会
雑誌
Anthropological Science (ISSN:09187960)
巻号頁・発行日
vol.119, no.3, pp.231-237, 2011 (Released:2011-12-21)
参考文献数
62
被引用文献数
2 5 3

Two mainland Japanese males were examined with a computer tomography (CT) X-ray scanner to reconstruct three-dimensional CT simulation images of their cranial anatomy and to check for the presence/absence of 23 nonmetric cranial traits. Surface anatomy for scoring 19 nonmetric cranial variations was clearly observed among the 23 variations. Evaluation of the four other traits might have been disturbed due to dental treatment history, small variations in the images, or X-ray radiation condition. However, these disturbances could be overcome by a combination of simple thin-sliced CT images and magnetic resonance imaging. We have thus developed a new anatomical field for elucidating human morphology.
著者
加藤 正史 大原 繁男 江龍 修
出版者
一般社団法人 電気学会
雑誌
電気学会論文誌A(基礎・材料・共通部門誌) (ISSN:03854205)
巻号頁・発行日
vol.132, no.12, pp.1122-1123, 2012-12-01 (Released:2012-12-01)
参考文献数
4

The Department of Electrical and Electronic Engineering, Nagoya Institute of Technology introduced the recording notebook in the graduation work to understand status of practice and fulfillment of students. Using the recording notebook, the students record practice time and evaluate monthly self-fulfillment. Teachers can guide students based on the record and the self-fulfillment. The system using the recording notebook will help quality assurance of education in the graduation work.
著者
平田 晃正 丸田 章博 加藤 正史 江龍 修
出版者
一般社団法人 電気学会
雑誌
電気学会論文誌A(基礎・材料・共通部門誌) (ISSN:03854205)
巻号頁・発行日
vol.132, no.12, pp.1124-1125, 2012-12-01 (Released:2012-12-01)
参考文献数
7
被引用文献数
1 1

The School of Engineering of Osaka University and the Department of electrical and electronic engineering, Nagoya Institute of Technology, coordinated and conducted survey for university students, students and teachers of high schools in order to realize effective activities of enlightenment for high school students. From the results of survey, it was suggested that the high-school teachers the most influential to high-school students. One of the promising contents in open lecture for high school students was the recent advanced technology allowing for the content of the science subjects in high school.
著者
加藤 正史
出版者
一般社団法人 電気学会
雑誌
電気学会論文誌A(基礎・材料・共通部門誌) (ISSN:03854205)
巻号頁・発行日
vol.132, no.12, pp.1120-1121, 2012-12-01 (Released:2012-12-01)
参考文献数
4

To motivate students in classes by establishment of interactive communication between the students and a teacher, we provided construction-type slides to the students before lectures through a e-learning system and randomly assigned students questions to fill the construction-type slides in the lectures. From comparison between the same classes in two years which were performed with and without this educational method, score in examination was found to be slightly high in the class with this method. In addition, lecture evaluation questionnaires to the students revealed that this method surely motivated students and stimulated participation in the lecture.
著者
佐野 信夫 馬場 弘二 山田 隆昭 吉武 勇 中川 浩二 西村 和夫
出版者
公益社団法人 土木学会
雑誌
土木学会論文集D (ISSN:18806058)
巻号頁・発行日
vol.63, no.3, pp.391-400, 2007 (Released:2007-09-20)
参考文献数
24

トンネルにおける点検作業は,効率的に実施することが望まれている.高速道路トンネルにおける覆工コンクリートの詳細点検は,高所作業車を用いた近接目視と打音点検が主体となっている.本研究で提案する点検システムは,1)走行速度60km/h程度でも計測できる車両を用いて,2)覆工コンクリート表面画像の机上点検から健全度の劣るスパンを特定し,3)そのスパンに限定して従来の近接目視・打音点検を行うものである.この点検システムにより,点検技術者による現地点検回数の低減に伴う点検費用の削減,点検・調査の迅速化,安全性判断の早期化,詳細点検計画の効率的な立案などが可能となった.
著者
木下 繁夫
出版者
公益社団法人 日本地震学会
雑誌
地震 第2輯 (ISSN:00371114)
巻号頁・発行日
vol.50, no.4, pp.471-483, 1998-03-13 (Released:2010-03-11)
参考文献数
17
被引用文献数
4

Recently, servo-seismometers (negative feedback seismometers) are used for various fields in seismology and earthquake engineering. First, this report explains five fundamental negative feedback seismometers with a displacement or a velocity transducer. Next, composite negative feedback seismometers, such as STS, VSE and CMG seismometers, are explained. Also, new negative feedback seismometers that have two feedback paths, are discussed. Finally, seismometer noise, the representations of instrument noise and seismometer characteristics, and, some problems in borehole observation by using negative feedback seismometers are discussed.
著者
木村 昌三 岡野 健之助
出版者
公益社団法人 日本地震学会
雑誌
地震 第2輯 (ISSN:00371114)
巻号頁・発行日
vol.50, no.4, pp.461-470, 1998-03-13 (Released:2010-03-11)
参考文献数
28

The source region of the 1946 Nankai earthquake is examined based on the recent studies of microearthquakes, focal mechanisms and the crustal structure in Shikoku, southwest Japan as well as the aftershock distribution just after the main shock. Although it is generally known that an aftershock distribution is nearly equal to the fault zone and the source area of tsunami, such an agreement has not been recognized in the case of the 1946 Nankai earthquake. In the present study, we point out the misinterpretation about the aftershock area and the focal plane in the previous works, and give a new interpretation indicating good agreement among the aftershock distribution, source area of tsunami, crustal movements, disaster area and fault region. In the previous works, the defect of the observation network in the west of Shikoku and the east of Kyushu was not taken into consideration on the estimation of the aftershock area. Furthermore, the focal plane was not properly estimated owing to misunderstanding of the crustal movements and the source area of tsunami. Since the focal plane exists in the focal layer in the uppermost mantle, we consider that the aftershocks occurred only in this layer and the crustal earthquakes were induced by stress release due to the occurrence of the main shock. Our microearthquake observations show that this layer has a thickness of about 5km from the west of Shikoku to the western part of the Kii peninsula and from the Median Tectonic Line in the north to the Nankai Trough in the south.
著者
Suguru Okunishi Naoaki Yoshimura Hiroto Maeda Takeshi Yoshikawa Taizo Sakata
出版者
日本微生物生態学会 / 日本土壌微生物学会 / Taiwan Society of Microbial Ecology / 植物微生物研究会
雑誌
Microbes and Environments (ISSN:13426311)
巻号頁・発行日
vol.17, no.3, pp.148-152, 2002 (Released:2002-10-02)
参考文献数
26
被引用文献数
2 3

A new cyanophage, strain S-KM1, infecting a phycoerythrin-rich Synechococcus sp., strain KFM001, was isolated from seawater of Kagoshima Bay. Transmission electron micrography of negative-stained specimens revealed that the phage isolate has an isometric head with a diameter of 83 nm and a contractile tail 166 nm in length and that it belongs to the family Cyanomyoviridae. The cyanophage was apparently virulent to the host strain KFM001 with a burst size of less than 70-80. The cyanophage may affect the population structure of the dominant picoplankton species in Kagoshima Bay.
著者
戸田 雅裕 門田 和之 久保 和毅 森本 兼曩
出版者
日本衛生学会
雑誌
日本衛生学雑誌 (ISSN:00215082)
巻号頁・発行日
vol.59, no.4, pp.383-386, 2004-11-15 (Released:2009-02-17)
参考文献数
7
被引用文献数
18 57

Objective: To assess the reliability and validity of a cellular phone dependence questionnaire (CPDQ) we designed.Methods: The CPDQ, a 20-item self-rated scale, was given to 168 healthy female university students (mean age, 21.7 years). Each question uses a 0 to 3 response scale; a higher score indicates greater dependence. The reliability and validity of the CPDQ were assessed by an internal consistency estimate and a factor analysis, respectively. Question scores were then summed to provide a cellular phone dependence score ranging from 0 to 60.Results: The reliability coefficient (Cronbach's alpha) for the CPDQ was 0.86. In addition, six significant factors were extracted by factor analysis for the 20 items of the CPDQ. The cellular phone dependence score showed a normal distribution (Kolmogorov-Smirnov's test), and the average (±SD) was 33.2±8.7.Conclusion: These findings suggest that the CPDQ is a useful scale for rating cellular phone dependence.
著者
岩塚 和子
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.98, no.6, pp.447-452, 2005-06-01 (Released:2011-10-07)
参考文献数
11
被引用文献数
2 1

A 31-year old woman with Churg-Strauss Syndrome (CSS) including eosinophilic otitis media is presented. Other manifestations included an 11-year history of nasal allergy followed by bronchial asthma, sinusitis with nasal polyps, eosinophilic pneumonia accompanied by peripheral eosinophilia (34% of 6, 600/μl leukocytes), and erythema in both legs. Repeated episodes of painless right otitis media occurred without fever during the first stage of CSS characterized by an allergic state. This progressed to bilateral otitis media with gelatinous mucoid fluid accumulations shortly before the second stage of CSS characterized additionally by peripheral eosinophilia and eosinophilic pneumonia. Numerous eosinophils were found in gelatinous fluid within the tympanic cavity.The patient was diagnosed with bilateral eosinophilic otitis media, which was controlled by nebulizer therapy with 2% fosfomycin and 0.2% betamethasone solution directed into the Eustachian tube and tympanic cavity. Hearing loss and vertigo have been avoided. This case strongly suggests that eosinophilic otitis media can be a manifestation of CSS.