DSpace コレクション: 2004-072004-07http://hdl.handle.net/11133/522024-03-28T20:28:56Z2024-03-28T20:28:56Zシックハウス症候群を誘発する建築材料からの微量ホルマリンのバッチ及びFI蛍光光度分析酒井, 忠雄手嶋, 紀雄田中, 慎一樋口, 慶郎浦, 信夫http://hdl.handle.net/11133/16382013-10-31T01:27:13Z2004-07-19T15:00:00Zタイトル: シックハウス症候群を誘発する建築材料からの微量ホルマリンのバッチ及びFI蛍光光度分析
著者: 酒井, 忠雄; 手嶋, 紀雄; 田中, 慎一; 樋口, 慶郎; 浦, 信夫
抄録: Batchwise and flow injection spectrofluorimetric methods for the trace analysis of formaldehyde evolved from building materials using 5, 5-dimethyl-l, 3-cyclohexanedione (dimedone) are described. These methods are based on the cyclization reaction of formaldehyde with dimedone in the presence of ammonium ion to form a fluorescent derivative (λ_<ex>, 395 nm; λ_<em>, 463nm). Preliminary experiments by batchwise procedure were carried out in order to clarify the reactivity. They revealed that the reaction rate was very slow: the heating at 90℃ for 1 hour was required for the detection of sub-ppm levels of formaldehyde. The linear calibration curve with r^2 = 0.995 was obtained in the range 0.05 - 1 ppm formaldehyde. By considering the results obtained by the batchwise method, a two-channel flow system was assembled, and, the flow system was successfully applied to the determination of formaldehyde evolved from building materials such as polymer, plywood and particleboard, comparing with the results obtained by HPLC and 4-amino-3-hydrazino-5-mercapto-l, 2, 4-triazole CAHMT) soectroohotometric method.2004-07-19T15:00:00Zノズルスロート部上流におけるアークプラズマ気流の分光計測北川, 一敬宮川, 佳典吉川, 典彦保原, 充毛利, 元治http://hdl.handle.net/11133/16392013-12-13T07:20:42Z2004-07-19T15:00:00Zタイトル: ノズルスロート部上流におけるアークプラズマ気流の分光計測
著者: 北川, 一敬; 宮川, 佳典; 吉川, 典彦; 保原, 充; 毛利, 元治
抄録: Flow near the sonic throat is spectroscopically measured to obtain the vibrational and rotational temperature in arc heated flow of pure Nitrogen. Arc heater experiments were conducted by using the Huels type arc heater. The B^2Σ2Σ^+_g transition of Δυ=0 of the N^2+ molecule, is referred in the region of 383 to 392 nm of the N^+_2+ 1st negative band system, and the C^3П_u-C^3П_g transition of Δυ=1 of the N_2 molecule, is referred in the region of 309 to 316 nm of the N_2 2nd positive band system. Spectra profiles in arc heated flow are obtained to estimate the vibrational temperature from the both bands at upstream of the nearly sonic throat. The vibrational temperatures T_υ are estimated to be about 2900~3200K from average inclination line close to (0, 0)-(2, 2) from the N^+_2(lst neg.), and about 3600~4300K from inclination line close to (1, 0)-(4, 3) from the N_2(2nd pos.). The average rotational temperatures in an arc heated flow are obtained from the N^+_2(lst neg.) bands, (0, 0) and (1, 1) of Δυ=0, and from the N_2(2nd pos.) bands, (1, 0) and (2, 1) of Δυ=1. The rotational temperatures T_r are estimated to be about 1600~1800K from 2<J'<26, and about 5900~7400K from 6<J'<42 of the rotational quantum number. While the ID stagnation temperature T_0 of the arc heated N_2 estimated by using 1D nozzle flow calculation, is about 2300~2500K.2004-07-19T15:00:00Zセラミックタイルの炭素被覆(3) 稲垣, 道夫山下, 智竹内, 繁樹津村, 朋樹http://hdl.handle.net/11133/16402013-10-31T01:29:33Z2004-07-19T15:00:00Zタイトル: セラミックタイルの炭素被覆(3)
著者: 稲垣, 道夫; 山下, 智; 竹内, 繁樹; 津村, 朋樹
抄録: Carbon coating of ceramic tiles was performed by placing the sample tile on the powder of carbon precursor poly(vinyl alcohol) (PVA) with the addition of either iron compounds, Fe_2O_3 and FeC_2O_4, or anatase-type titanium oxide. The powder of additives were placed the upper surface of the tile. During the heating to 900℃, carbon was climbed up from the lower surface of the tile and covered the particles of the additives. By adding iron compounds, brightness of the coated carbon was improved, similar to that of commercially available smoked roofing tiles. By the addition of photocatalytic TiO_2, the resultant tiles showed photoactivity to decompose methylene blue in water under UV irradiation. Carbon-coating was successfully carried out by protecting the oxidation of carbon in rice hulls, which showed the possibility to apply this process to practical production.2004-07-19T15:00:00Z関節角度にともなう筋電図, 筋音図の変化平松, 誠治加藤, 厚生三田, 勝巳渡壁, 誠伊藤, 晋彦赤滝, 久美http://hdl.handle.net/11133/16412013-10-31T01:52:13Z2004-07-19T15:00:00Zタイトル: 関節角度にともなう筋電図, 筋音図の変化
著者: 平松, 誠治; 加藤, 厚生; 三田, 勝巳; 渡壁, 誠; 伊藤, 晋彦; 赤滝, 久美
抄録: In this study, we measured the ankle joint torque with the electromyogram (EMG) and the mechanomyogram (MMG) on several positions of the human ankle during isometric dorsiflexion. We measured maximum voluntary contraction torque (MVC) and ramp contraction between dorsiflexion angle of 30 degrees and a planter flexion angle of 40 degrees. MVC was the greatest in the neutral position. The RMS amplitude of EMG was similar at the neutral position and planter flexion of 40 degrees and was bigger at dorsiflexion of 30 degrees. And the inflection point at 60-75 %MVC of the RMS amplitude of MMG was shifted to higher torque with planter flexion. It is thought that these results reflected a muscle activity caused by this length.2004-07-19T15:00:00Z