巻号一覧
後続誌
43 巻, 7 号
選択された号の論文の6件中1～6を表示しています
- |<
- <
- 1
- >
- >|
-
博田 忠邦2001 年 43 巻 7 号 p. 640-645
発行日: 2001/07/30
公開日: 2009/04/21
ジャーナル フリーPDF形式でダウンロード (7585K) -
〈現代〉を問い直すためのノート佐田 務2001 年 43 巻 7 号 p. 646-654
発行日: 2001/07/30
公開日: 2009/04/21
ジャーナル フリーThe issue of nuclear power is one of themes that tend to produce severe confrontation over the pros and cons of its utilization. The logic of the groups promoting nuclear energy utilization contains the conception which approves people's needs to energy and the paternalism that policy-making is to be in the hands of experts of specialized knowledge and ripe experiences. Behind the opinion of anti-nuclear groups of citizen movement style there are criticisms to the centralization of power and the technocracy, and they regard nuclear power as a symbol of the modern social system. On the other hand, the general publics who are put out of the decision-making process on nuclear power development are increasing the sense of powerless and apathy on the nuclear power issue, and their attitude of free ride on energy utilization is becoming predominant. The true targets to which both proponent and opponent groups should intervene seriously are free riders and the mechanism of the society structuring such situation. If both parties become deeply aware of the problems common to them and have intension of solving the problems, the scheme of the present conflict may change into that of complementary division of work.抄録全体を表示PDF形式でダウンロード (2285K) -
第3回 核データの測定と応用馬場 護, 石橋野 健二, 久保野 茂, 原田 秀郎, 高野 秀機, 池田 裕二郎, 古林 徹, 尾川 浩一, 山口 恭弘, 川合 將義2001 年 43 巻 7 号 p. 655-667
発行日: 2001/07/30
公開日: 2009/04/21
ジャーナル フリーPDF形式でダウンロード (15361K) -
2001 年 43 巻 7 号 p. 699
発行日: 2001年
公開日: 2010/01/08
ジャーナル フリーPDF形式でダウンロード (73K) -
超細密オフセットフィンの伝熱流動特性試験石山 新太郎, 武藤 康, 緒方 寛, 上戸 好美2001 年 43 巻 7 号 p. 708-717
発行日: 2001/07/30
公開日: 2009/04/21
ジャーナル フリーHigh performance plate fin type recuperator core model (=core width×height×length, 100mm×100mm×100mm) was fabricated with ultra fine off-set fin (=fin height×thickness×off-set length×pitch, 1.2mm×0.2mm×5.0mm×1.6mm), and heat transfer and fluid characterization tests of the core model were performed.
With these results, the following conclusions were derived,
(1) Heat transfer coefficient and pressure drop of the core model obtained by present experiments were estimated by 10-13%, 0-27% lower values than that calculated by Wieting formula.
(2) On the basis of present experiment, high accuracy new formulas for heat transfer and fluid characterization of the core model were proposed as the following,
[Heat transfer model]
Nu=9.76×10-2[x/de]-0.162[w/H]-0.184Re-0.693Pr1/3
[Pressure drop model]
f=0.924[x/de]-0.384[w/H]-0.092Re-0.402
where Nu is the Nusselt number, Pr is the Plandle number, Re is the Reynols number, f is the friction coefficient, de is the equivalent diameter, w is the distance between fins, H is the fin height and x is the fin length in the flow direction.
Heat transfer coefficient and flow friction characteristics of the recuperator core model obtained in present study can be predicted by these formulas with accuracy of 90% by ±5% deviation and 85% by ±5% deviation, respectively.抄録全体を表示PDF形式でダウンロード (12953K) -
中山 享, 佐々木 啓子, 伊藤 克彦2001 年 43 巻 7 号 p. 718-723
発行日: 2001/07/30
公開日: 2009/04/21
ジャーナル フリーHZr2(PO4)3 was prepared by the thermal decomposition of NH4Zr2(PO4)3, which was synthesized in advance by a hydrothermal reaction from a stirred solution of ZrOCl2, H3PO4 and H2C2O4. Mixtures of HZr2(PO4)3 with varying amounts of CsNO3 were thermally treated at 873-1, 473K, in order to investigate the immobilization of radioactive Cs. The CsNO3/HZr2(PO4)3=0.4 immobilized product, treated at 973K, containing the maximum amount of immobilized Cs (a 0.4 molar ratio of CsNO3/HZr2(PO4)3 equates to approximately 10wt% of Cs) was minimal Cs leaching rates in several solvents at 433K in an autoclave. The leaching rate of Cs ion from that product was <10-6, 1.0×10-3, <10-6, <10-6, 4.7×10-5, 2.2×10-4 and 2.1×10-3g·m-2·d-1 in deionized water, sea water. 0.1moldm-3-HCl, 0.5mol·dm-3-HCl, 1mol·dm-3-HCl, 1.5mol·dm-3-HCl and 1mol·dm-3-NH3 at 433K, respectively, indicating that HZr2(PO4)3 reacts with CsNO3 to give a stable Cs-immobilized product.抄録全体を表示PDF形式でダウンロード (2359K)
- |<
- <
- 1
- >
- >|