巻号一覧
44 巻 (2002)
- 4 号 p. 285-
- 3 号 p. 185-
- 2 号 p. 81-
- 1 号 p. 3-
44 巻, 3 号
選択された号の論文の5件中1～5を表示しています
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藤綿 克之, 三家本 史郎2002 年 44 巻 3 号 p. 185-198
発行日: 2002/09/03
公開日: 2012/12/11
ジャーナル フリーA new method, which makes use of stream function models together with potential models, is proposed to draw stream lines for groundwater flow fields with anomalous zones. The anomalous zones within analytical domains include impermeable zones, prescribed head zones, and discharge and/or recharge wells. All boundary conditions for stream function models are precisely evaluated by using calculated results of potential models. Elimination of anomalous zones from analytical domains can be achieved by a branch cut at a location of any prescribed stream line or at an arbitrary location. Simulated examples are shown for each case of anomalous types and the results obtained by the stream function models are compared with the results by the counterpart potential models. The comparison shows sufficient accuracy of the proposed stream function models.抄録全体を表示PDF形式でダウンロード (4497K) -
渡辺 仙州, 米田 稔, 森澤 眞輔, 横山 卓雄2002 年 44 巻 3 号 p. 199-211
発行日: 2002/09/03
公開日: 2012/12/11
ジャーナル フリーThe source of water supply is only groundwater in Kagamihara City, Gifu Prefecture. Although many numerical simulations have been done on the groundwater of the city till present, their results didn't match to the measured data very well. The simulation of this study increased its accuracy by using a tank model conditioned by land use and height of land making use of digital map data and especially by dealing with quantity data of pumping-up which had been ignored so far. The results quantitatively elucidated the influence of decrease in paddy field to the groundwater resource.抄録全体を表示PDF形式でダウンロード (2028K) -
中川 啓, 籾井 和朗, 和田 信一郎2002 年 44 巻 3 号 p. 213-226
発行日: 2002/09/03
公開日: 2012/12/11
ジャーナル フリーTwo global optimization methods based on Genetic Algorithms (GA) and Shuffled Complex Evolution (SCE-UA) method were examined to evaluate reaction terms in a solute transport model involving cation exchange reactions. Although the both algorithms can minimize the objective function after succession of generations, SCE-UA method appears superior to GA in that its performance depends less on the selection of the parameter set. In this paper, we proposed the following improvements for the efficient use of the algorithms: 1) the adaptability of the population that deduce impractical parameters was set to 0, and 2) In both methods, global optimum sought was repeated four times for each step, with narrowed search range. These new methods may also be useful for other optimization problems.抄録全体を表示PDF形式でダウンロード (1984K) -
韓国・濟州島東部, 千葉県長生村, 福岡県津屋崎町, 福岡市西区元岡広城 吉成, 神野 健二, 佐伯 和利, 池見 洋明, 呉 潤根, 松岡 信明, 岡村 正紀, 田籠 久也2002 年 44 巻 3 号 p. 227-238
発行日: 2002/09/03
公開日: 2012/12/11
ジャーナル フリーGeochemical properties of salinized groundwater at four areas(the east of Cheju Island, Korea, Chosei Village in Chiba Prefecture, Japan, and Tsuyazaki Town and Motooka is located the west of Fukuoka City in Fukuoka Prefecture, Japan) are studied. Consequently, it was found that geochemical properties of four salinized groundwaters have the different characteristics, respectively.
As regards tritium concentrat i ons, by comparing the tritium concentrations of the shallow groundwater alone with those of the deep one, the tritium concentrations of the shallow one showed higher concentrations than those of the deep one in Motooka. From抄録全体を表示PDF形式でダウンロード (1632K) -
石井 六夢, 谷藤 允彦2002 年 44 巻 3 号 p. 239-247_1
発行日: 2002/09/03
公開日: 2012/12/11
ジャーナル フリーPDF形式でダウンロード (24387K)
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