著者

岡野 邦彦

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.57, no.2, pp.203-209, 2003-02-01 (Released:2011-08-17)

参考文献数

10

---

天体は暗い背景に置かれた自己発光物であることから極端な明暗差があり, 画像表現が難しい.それをうまく表現する方法が銀塩フィルムでは古くから工夫されてきた.冷却CCDカメラによる天体画像を綺麗に仕上げるために, このフィルムで培われてきたのと似た処理をディジタル的に実施する「ディジタル現像」と呼ばれる方法が成功を収めている.

著者

岡野 邦彦 小川 雄一 飛田 健次

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society (ISSN:03854213)

巻号頁・発行日

vol.130, no.4, pp.395-398, 2010-04-01

参考文献数

7

被引用文献数

2

---

This paper describes a prospect toward electric power production by the Fusion energy. In the first part of the paper, a principle of TOKAMAK system which is the successful magnetic-confinement-systems for fusion reactors are shown, and then the ITER project based on TOKAMAK and the present status of ITER is reviewed. In the remainder of the paper, a roadmap for fusion energy and conceptual designs of Demonstration reactors are briefly described.

著者

高原 智洋 榎本 寛 原田 真一 岡野 邦彦 伊藤 茂 土井口 祐一 進藤 裕幸

出版者

西日本整形・災害外科学会

雑誌

整形外科と災害外科 (ISSN:00371033)

巻号頁・発行日

vol.53, no.1, pp.101-106, 2004 (Released:2005-04-12)

参考文献数

5

被引用文献数

1 1

---

Primary total hip arthroplasties were performed on 74 hips between 1998 and2001 at our hospital. We used the Hardinge approach on 36 hips of patients whose age ranged from 46 to 80 years (mean : 63.2 years) and Dall approach on 38 hips of patients whose age ranged from 43 to 76 years (mean : 60.2 years). Postoperative followup was carried out for over one year (mean : Hardinge 24.0 months,Dall 39.4 months).The results revealed trochanteric tenderness in 9 Hardinge hips and 4 Dall hips more than 12 months from operation. Radiological tests indicated abnormal assification in 13 Hardinge hips and seven Dall hips, and abnormal assification with trochanteric tenderness in seven Hardinge hips and one Dall hip during the same period.

著者

岡野 邦彦

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 : 映像情報メディア = The journal of the Institute of Image Information and Television Engineers (ISSN:13426907)

巻号頁・発行日

vol.57, no.2, pp.203-209, 2003-02-01

参考文献数

10

---

天体は暗い背景に置かれた自己発光物であることから極端な明暗差があり, 画像表現が難しい.それをうまく表現する方法が銀塩フィルムでは古くから工夫されてきた.冷却CCDカメラによる天体画像を綺麗に仕上げるために, このフィルムで培われてきたのと似た処理をディジタル的に実施する「ディジタル現像」と呼ばれる方法が成功を収めている.

著者

高木 雅昭 岩船 由美子 山本 博巳 山地 憲治 岡野 邦彦 日渡 良爾 池谷 知彦

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society (ISSN:03854213)

巻号頁・発行日

vol.130, no.7, pp.651-660, 2010-07-01

参考文献数

19

被引用文献数

3 1

---

In the power sector, the national government has set the goal that the introduction of PV reaches 53 million kW by 2030. However, large-scale introduction of PV will cause several problems in power systems such as surplus electricity. We need large capacity of pumped storages or batteries for the surplus electricity, but the construction costs of these plants are very high. On the other hand, in the transport sector, Electric Vehicle (EV) is being developed as an environmentally friendly vehicle. To promote the diffusion of EV, it is necessary to build infrastructures that can charge EV in a short time; a battery switch station is one of the solutions to this problem. At a station, the automated switch platform will replace the depleted battery with a fully-charged battery. The depleted battery is placed in a storage room and recharged to be available to other drivers. In this study, we propose the use of station's battery as a countermeasure for surplus electricity of PV and evaluate the economic value of the proposed system. We assumed that 53 million kW of PV is introduced in the nationwide power system and considered two countermeasures for surplus electricity: (1) Pumped storage; (2) Battery of station. The difference in total annual cost between Pumped case and Battery case results in 792.6 billion yen. Hence, if a utility leases the batteries from stations fewer than 792.6 billion yen, the utility will have the cost advantage in Battery case.

著者

岡野 邦彦 榎本 寛 弦本 敏行 原田 真一 進藤 裕幸

雑誌

Hip joint (ISSN:03893634)

巻号頁・発行日

vol.26, pp.442-447, 2000-09-30

被引用文献数

45

著者

吉田 智朗 岡野 邦彦 畑山 明聖

雑誌

電気学会研究会資料. NE, 原子力研究会

巻号頁・発行日

vol.1997, no.7, pp.1-8, 1997-09-09

著者

岡野 邦彦

出版者

日本シミュレーション学会

雑誌

シミュレーション (ISSN:02859947)

巻号頁・発行日

vol.22, no.2, pp.83-88, 2003-06-15

---

A simulation for conceptual design of fusion reactors is reviewed. There are a lot of sophisticated plasma simulations for fusion research, but usually those calculation processes are rather heavy to merge into simulations for the design survey of reactor concepts. The simulation system for conceptual reactor design, described here, uses more simplified models and formulae while various constraints from physical and engineering points of view can be taken into consideration consistently.

著者

日渡 良爾 岡野 邦彦 朝岡 善幸 時松 宏治 小西 哲之 小川 雄一

出版者

社団法人プラズマ・核融合学会

雑誌

プラズマ・核融合学会誌 (ISSN:09187928)

巻号頁・発行日

vol.81, no.11, pp.903-916, 2005-11-25

被引用文献数

1 3

---

The present study reveals forthcoming break-even conditions of tokamak plasma performance for the fusion energy development. The first condition is the electric break-even condition, which means that the gross electric power generation is equal to the circulating power in a power plant. This is required for fusion energy to be recognized as a suitable candidate for an alternative energy source. As for the plasma performance (normalized beta value β_N, confinement improvement factor for H-mode HH, the ratio of plasma density to Greenwald density fn_<GW>), the electric break-even condition requires the simultaneous achievement of 1.2<β_N<2.7, 0.8<HH, and 0.3<fn_<GW><1.1 under the conditions of a maximum magnetic field on the TF coil B_<max>=16 T, thermal efficiency η_e=30%, and current drive power P_<NBI><200 MW. It should be noted that the relatively moderate conditions of β_N〜1.8, HH〜1.0, and/fn_<GW>〜0.9, which correspond to the ITER reference operation parameters, have a strong potential to achieve the electric break-even condition. The second condition is the economic break-even condition, which is required for fusion energy to be selected as an alternative energy source in the energy market. By using a long-term world energy scenario, a break-even price for introduction of fusion energy in the year 2050 is estimated to lie between 65 mill/kWh and 135 mill/kWh under the constraint of 550 ppm CO_2 concentration in the atmosphere. In the present study, this break-even price is applied to the economic break-even condition. However, because this break-even price is based on the present energy scenario including uncertainties, the economic break-even condition discussed here should not be considered the sufficient condition, but a necessary condition. Under the conditions of β_<tmax>=16 T, η_e=40%, plant availability 60%, and a radial build with/without CS coil, the economic break-even condition requires β_N〜5.0 for 65 mill/kWh of lower break-even price case. Finally, the present study reveals that the demonstration of steady-state operation with β_N〜3.0 in the ITER project leads to the upper region of the break-even price in the present world energy scenario, which implies that it is necessary to improve the plasma performance beyond that of the ITER advanced plasma operation.

著者

岡野 邦彦 吉田 智朗

出版者

社団法人プラズマ・核融合学会

雑誌

プラズマ・核融合学会誌 (ISSN:09187928)

巻号頁・発行日

vol.72, no.4, pp.365-372, 1996-04-25

被引用文献数

2

---

Critical issues for the realization of commercial fusion reactor are discussed on the basis of a prediction of power source composition in the next century. The key issue is rather a relaxation in the construction site condition than a competitive cost in comparison with the nuclear fission power plant. It seems a logical conclusion that the competitor of the fusion plant in the cost will be a future CCT (Clean Coal Technology) and/or LNG plant loaded with a CO_2 recovery system.

著者

江口 愛 榎本 寛 原田 真一 岡野 邦彦 伊藤 茂 銅川 博文 進藤 裕幸

出版者

West-Japanese Society of Orthopedics & Traumatology

雑誌

整形外科と災害外科 (ISSN:00371033)

巻号頁・発行日

vol.50, no.4, pp.1085-1088, 2001-09-25

参考文献数

7

---

We used SCFE screws in 8 patients with slipped capital femoral epiphysis. No hips showed further slipping after in situ pinning. Age of crisis was 11 to 16 (mean: 13.7 years old). The duration of follow-up was more than 2 years. Epiphysial closure after operation was observed at 9 to 16 months (mean: 11 months). The average JOA score before operation was 77 points, and 98 points after. There were no severe complications such as avascular necrosis, chondrolysis, or osteoarthritis. Short neck defomity was seen, but neither buried screw heads inside the cortex seen in CCS nor penetration of screw were seen.

著者

朝岡 善幸 日渡 良爾 岡野 邦彦

出版者

電力中央研究所

雑誌

電力中央研究所報告 T 研究報告

巻号頁・発行日

no.3008, pp.1-20,巻頭1〜5, 2004-01

著者

日渡 良爾 岡野 邦彦 朝岡 善幸 小川 雄一

雑誌

電気学会研究会資料. NE, 原子力研究会

巻号頁・発行日

vol.2006, no.1, pp.1-6, 2006-09-08

著者

朝岡 善幸 日渡 良爾 岡野 邦彦 伊勢 英夫 野本 恭信

出版者

社団法人プラズマ・核融合学会

雑誌

プラズマ・核融合学会年会予稿集

巻号頁・発行日

no.20, 2003-11-18

著者

岡野 邦彦 朝岡 善幸 日渡 良爾

出版者

社団法人プラズマ・核融合学会

雑誌

プラズマ・核融合学会誌 (ISSN:09187928)

巻号頁・発行日

vol.80, no.3, pp.241-248, 2004-03-25

被引用文献数

1

---

Beam driven stable equilibria for a conceptual reactor, Demo-CREST, which was designed for early demonstration of electric power generation, has been investigated. Considering current profiles driven by neutral beams, the attainable normalized beta β_N with a stabilization wall is about 3.4 with a normal shear (NS). With reversed shear (RS), a higher β_N is attainable. The stable equilibria up to 4.0 can be sustained by a couple of On-and Off-axis beams. In the range of 1.9<β_N<4.0, power of each beam does not exceed the power in the case of β_N=1.9 which is the base design point of Demo-CREST. In the case of RS operation with β_N=4.0, the density ratio to the Greenwald limit can be maintain at about unity if high temperature operation with T_e>20keV is allowable.