On Weierstrass` and other examples of nowhere differentiable continuous function

Takenouchi, Osamu 호남수학회 1982 호남수학학술지 Vol.4 No.1

Studies on Algebras of Operators

Kwak, Hyo-Chul,Takenouchi, O.,Jeon, Won Kee,Lee, Jong Pio 全北大學校 1984 論文集 Vol.26 No.-

Maternal Effects of Japanese Shorthorn Cows on the Growth of Embryo-transferred Japanese Black Calves in a Cow-calf Grazing System

Yamaguchi, Manabu,Ikeda, Kentaro,Takenouchi, Naoki,Higashiyama, Masakazu,Watanabe, Akira Asian Australasian Association of Animal Productio 2013 Animal Bioscience Vol.26 No.7

The growth performance of embryo-transferred Japanese Black calves that were born from, and suckled by, Japanese Shorthorn cows in a cow-calf grazing system (BS-group, n = 5) was compared to that of Japanese Black calves from Japanese Black cows in a cowshed (BB-group, n = 5). The daily weight gain from birth to 1 month was higher in the BS-group than in the BB-group (p<0.01), and the same trend (p<0.05) was observed at 2 and 3 months of age. This resulted in body weight that was significantly higher for the BS-group between 1 and 3 months of age than what was observed for the BB-group (p<0.05). Heart girth was significantly greater in the BS-group than in the BB-group throughout the experimental period (p<0.01), and chest depth and withers height in the BS-group were significantly greater from 2 to 4 months of age (p<0.05) and at 4 months of age only (p<0.05). No difference in body length (p>0.05) was observed between the groups. These results suggest that the maternal effect of Japanese Shorthorn cows was positive for embryo-transferred Japanese Black calf growth during the early suckling stage. As Japanese Black calves are traded at a high price on the Japanese market, we conclude that this proposed production system is likely to improve the profitability of herd management in upland Japan.

Effect of metal conditioner on bonding of porcelain to cobalt-chromium alloy

Yoshito Minesaki,Sadaaki Murahara,Yutaro Kajihara,Yoshihisa Takenouchi,Takuo Tanaka,Shiro Suzuki,Hiroyuki Minami 대한치과보철학회 2016 The Journal of Advanced Prosthodontics Vol.8 No.1

PURPOSE The purpose of this study was to evaluate the efficacy of two different metal conditioners for non-precious metal alloys for the bonding of porcelain to a cobalt-chromium (Co-Cr) alloy. MATERIALS AND METHODS Disk-shaped specimens (2.5×10.0 mm) were cast with Co-Cr alloy and used as adherend materials. The bonding surfaces were polished with a 600-grid silicon carbide paper and airborne-particle abraded using 110 µm alumina particles. Bonding specimens were fabricated by applying and firing either of the metal conditioners on the airborne-particle abraded surface, followed by firing porcelain into 5 mm in diameter and 3 mm in height. Specimens without metal conditioner were also fabricated. Shear bond strength for each group (n=8) were measured and compared (α=.05). Sectional view of bonding interface was observed by SEM. EDS analysis was performed to determine the chemical elements of metal conditioners and to determine the failure modes after shear test. RESULTS There were significant differences among three groups, and two metal conditioner-applied groups showed significantly higher values compared to the non-metal conditioner group. The SEM observation of the sectional view at bonding interface revealed loose contact at porcelain-alloy surface for non-metal conditioner group, however, close contact at both alloy-metal conditioner and metal conditioner-porcelain interfaces for both metal conditioner-applied groups. All the specimens showed mixed failures. EDS analysis showed that one metal conditioner was Si-based material, and another was Ti-based material. Si-based metal conditioner showed higher bond strengths compared to the Ti-based metal conditioner, but exhibited more porous failure surface failure. CONCLUSION Based on the results of this study, it can be stated that the application of metal conditioner is recommended for the bonding of porcelain to cobalt-chromium alloys.

Studies on C^*-algebras and its Applications

Lee, Yeong Soo,Kwak, Hyo-chul,Osamu, Takenouchi 全北大學校 基礎科學硏究所 1983 基礎科學 Vol.6 No.1

현대해석학 및 응용과학에서 널리 활용되고 있는 C^*-대수는 많은 수학자들에 의하여 연구되어지고 있다. 본 논문에서는 형 Ⅰ의 C^*-대수의 여러가지 성질과 그 응용에 관하여 연구하는 것으로 제2장에서 (1) von Neumann대수 M 가 형 I이 되기 위한 필요충분 조건은 C(E)=1을 갖는 가환사영 EεM이 존재하는 것이다(정리 2.2). (2) M이 Hilbert공간 H위의 형 Ⅰ의 von Neumann 대수이면 M의 Commutant M'는 가환 Commutant를 갖는 von Meumann 대수와 동형이다(정리 2.4). (3) M이 Hilbert공간 H 위의 가환 von Neumann 대수이면 Commutant M'는 형 Ⅰ의 von Neumann 대수이다(정리 2.5) 등을 고찰하였고, 제 3장에서 (1) (π,H)가 C^*-대수 A의 기약표현이면 양의 원 xεA가 가환되기 위한 필요충분조건은 모든 (π,H)에 대하여 dim π(x)≤1이다(정리 3.1). (2) (π,H)가 형 I의 C^*-대수 A의 기약표현이면 각 (π,H)에 대하여 C(H)⊂π(A)이며, 특히 A가 형Ⅰ의 C^*-대수이면 각 (π,H)에 대하여 C(H)=π(A)이다(정리 3.5)등을 구명하는 것이 본 논문의 목적이다.

Effect of metal conditioner on bonding of porcelain to cobalt-chromium alloy

Minesaki, Yoshito,Murahara, Sadaaki,Kajihara, Yutaro,Takenouchi, Yoshihisa,Tanaka, Takuo,Suzuki, Shiro,Minami, Hiroyuki The Korean Academy of Prosthodonitics 2016 The Journal of Advanced Prosthodontics Vol.8 No.1

PURPOSE. The purpose of this study was to evaluate the efficacy of two different metal conditioners for non-precious metal alloys for the bonding of porcelain to a cobalt-chromium (Co-Cr) alloy. MATERIALS AND METHODS. Disk-shaped specimens ($2.5{\times}10.0mm$) were cast with Co-Cr alloy and used as adherend materials. The bonding surfaces were polished with a 600-grid silicon carbide paper and airborne-particle abraded using $110{\mu}m$ alumina particles. Bonding specimens were fabricated by applying and firing either of the metal conditioners on the airborne-particle abraded surface, followed by firing porcelain into 5 mm in diameter and 3 mm in height. Specimens without metal conditioner were also fabricated. Shear bond strength for each group (n=8) were measured and compared (${\alpha}=.05$). Sectional view of bonding interface was observed by SEM. EDS analysis was performed to determine the chemical elements of metal conditioners and to determine the failure modes after shear test. RESULTS. There were significant differences among three groups, and two metal conditioner-applied groups showed significantly higher values compared to the non-metal conditioner group. The SEM observation of the sectional view at bonding interface revealed loose contact at porcelain-alloy surface for non-metal conditioner group, however, close contact at both alloy-metal conditioner and metal conditioner-porcelain interfaces for both metal conditioner-applied groups. All the specimens showed mixed failures. EDS analysis showed that one metal conditioner was Si-based material, and another was Ti-based material. Si-based metal conditioner showed higher bond strengths compared to the Ti-based metal conditioner, but exhibited more porous failure surface failure. CONCLUSION. Based on the results of this study, it can be stated that the application of metal conditioner is recommended for the bonding of porcelain to cobalt-chromium alloys.

EFFECT OF MILK YIELD ON GROWTH OF MULTIPLE CALVES IN JAPANESE BLACK CATTLE (WAGYU)

Shimada, K.,Izaike, Y.,Suzuki, O.,Kosugiyama, M.,Takenouchi, N.,Ohshima, K.,Takahashi, M. Asian Australasian Association of Animal Productio 1992 Animal Bioscience Vol.5 No.4

An experiment was conducted to examine the feasibility of producing multiple calves using embryo transfer in Japanese Black cattle. Milk yield of cows and forage intake of calves were measured for 11 cows with single calves, 14 cows with twins and one cow with triplets. The means of 26 weeks cumulative milk yield were 854, 1028 and 1271 kg for cows having singles, twins and triplets, respectively. Male birth weights for single calves, twins and triplet were 34.9, 26.6 and 19.9 kg, and female ones were 31.7, 24.1 and 22.1 kg, respectively. Weight and daily gain of calves were affected by weeks (W), sex (S), the number of calves (N), parity, birth season, $W{\times}N$, $S{\times}N$ and regression on milk yield. Growth rate was higher for single calves than for twins until about 9 weeks of age, then weights increased at a similar rate. Male calf weaning weights for singles, twins and triplets were 207.0, 177.1 and 162.2 kg, and those for females were 185.4, 151.6 and 180.4 kg, respectively. Average regression coefficients of calf growth on milk yield were significant, and single calf was affected more than twin calves by increment of milk yield. As the number of calves per cow increased, hay intake of calves decreased and concentrate intake tended to increase between 6 and 13 weeks of age.

Behavior of Water Droplet on the Polymer Surface and Influence of the Charge

Zhu, Yong,Yamashita, Seiji,Anami, Naoya,Otsubo, Masahisa,Honda, Chikahisa,Takenouchi, Osamu,Hashimoto, Yousuke The Korean Institute of Electrical Engineers 2003 KIEE International Transactions on Electrophysics Vol.3C No.3

This paper describes the results of experiments made to examine the behavior of water droplet on the polymer surface and influence of the charge. In this experiment, water droplet was put on the polymer surface in an applied AC electric field and the investigations of its behavior were done with a high-speed video camera. It can be observed that the droplet elongates and vibrates with being pulled towards the positive electrode in a wave synchronism with the frequency of the power source. The volume and conductivity of water droplet are shown to have a marked effect on the mode of discharge development. These behaviors may be caused by the change of electric field of applied AC voltage and induced charges in/on the water droplet.

Behavior of Water Droplet on the Polymer Surface and Influence of the Charge

Yong Zhu,Seiji Yamashita,Naoya Anami,Masahisa Otsubo,Chikahisa Honda,Osamu Takenouchi,Yousuke Hashimoto 대한전기학회 2003 KIEE International Transactions on Electrophysics Vol.3C No.3