• Title/Summary/Keyword: Hot spring

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A Comparative Study on the Spatial Composition of the Hydro-therapy Complex Using a Hot Spring Water (온천수를 이용한 수치료 시설의 공간구성 비교 연구)

  • Kim, In-Soon;Kang, Byoung-Keun
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.9 no.2
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    • pp.17-24
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    • 2003
  • The purpose of this study was to analyze the Comparative Study to extract the spatial factor of Hydro-therapy complex in the health spa facilities that was composed of the Hydro-therapy space, sport space, leisure space, lodging space, adminstration space. The results of this study were as follows ; the hot spring complex in korea can be converted into the hydro-therapy complex. The spatial factor of functional replacement must include to the consultation room, medical cure room, inspection room and the exercise consultation pool as the consultation space.

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The Study of Cyanobacterial Flora from Geothermal Springs of Bakreswar, West Bengal, India

  • Debnath, Manojit;Mandal, Narayan Chandra;Ray, Samit
    • ALGAE
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    • v.24 no.4
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    • pp.185-193
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    • 2009
  • Geothermal springs in India, formed as a result of volcanic or tectonic activities, are characterized by high temperature and relatively abundant reduced compounds. These thermal springs are inhabited by characteristic thermophilic organisms including cyanobacteria. Cyanobacteria are among the few organisms that can occupy high temperature aquatic environments including hot springs. In alkaline and neutral hot springs and streams flowing from them cyanobacteria can form thick colourful mats that exhibit banding patterns. The present investigation involves study of mat forming cyanobacterial flora from hot springs located in Bakreswar, West Bengal, India. The important species found are Synechococcus bigranulatus, S. lividus, Gloeocapsa gelatinosa, G. muralis, Phormidium laminosum, P. frigidum, Oscillatoria princes, O. fragilis, Lyngbya lutea, Pseudanabaena sp., Calothrix thermalis, and Fischerella thermalis. Their distribution pattern in relation to physico-chemical parameters of spring water has also been studied. Three cyanobacterial strains of the above mentioned list were grown in culture and their pigment content and nitrogen fixing capacity were also studied. Nitrogen fixing capacities of Calothrix thermalis, Nostoc sp. (isolated in culture) and Fischerella thermalis are 5.14, 0.29, and 2.60 n mole $C_2H_4/{\mu}g$ of Chl-${\alpha}$/hr respectively. Carotenoid : Chlorophyll-${\alpha}$ ratio of four mat samples collected from Kharkunda, Suryakunda, Dudhkunda and bathing pool are 2.45, 1.60, 1.48, and 1.34, respectively. Higher value of Carotenoid : Chlorophyll-${\alpha}$ ratio coincided with higher temperature.

Finite Element Analysis of a Multi-Stage Axisymmetric Forging Process Having A Spring-Attached Die (스프링부착 금형을 가진 다단 축대칭 단조공정의 유한요소해석-단조시뮬레이터 공정적용 사례(3))

  • 전만수;이석원;정재헌
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 1996.03b
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    • pp.93-100
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    • 1996
  • In this paper, a computer simulationtechnique for the forging process having a spring-attached die was presented . The penalty rigid-thermoviscoplastic finite element method was empolyed together with an interatively force-balancing method, in which the convergence was achieved when the forming load and the spring reaction force are in equilibrium within the user-specified allowable accuracy. The force balance was controled by adjusting the velocity of the spring-attched die. th minimize the number of internations, a velocity estimating schemewas proposed. Two application examples found in the related company were given. In the first application example, the predicted metal folw lines were compared with the acturally forged ones. in the second example, a hot forging process with a spring-attached die was simulated and the analyzed results were discussed in order to investigated the effects of spring-attached dies on the metal flow lines and the forming loads.

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Isolation and Identification of Thermostable \beta-glycosidase-producing Microorganism from Hot Spring of Volcanic Area at Atagawa in Japan. (일본의 Atagawa 온천지대에서 분리한 내열성 \beta-glycosidase 생성균주의 분리 및 동정)

  • 남은숙;최종우;차성관;안종건
    • Microbiology and Biotechnology Letters
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    • v.30 no.2
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    • pp.151-156
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    • 2002
  • This study was performed to obtain the thermostable $\beta$-glycosidase producing bacteria from hot spring of volcanic area at Atagawa in Japan. KNOUC 202 was selected because it showed thermostable $\beta$-glycosidase activity in sodium phosphate buffer(pH 6.8) at $70^{\circ}C$ for 4h, and it was identified. The strain was aerobic, asporogenic bacilli, immobile, gram negative, catalase positive, oxidase positive, and pigment-producing. Optimum growth was at $70~72^{\circ}C$, pH 7.0~7.2, and it could grow in the presence of 3% NaCl. The main fatty acids in cell were iso-15:0 and iso-l7:0. 16S rRNA sequence of KNOUC 202 showed 99.9% similarity with that of Thermus thermophilus ATCC 27634(HB8). Based on morphological, physiological, biochemical characteristics, cellular fatty acids profile and 16S rRNA sequence analysis, KNOUC 202 was identified as Thermus thermophilus.

Water Geochemistry and Mineralogical Characterization of precipitate in the Munkyeong Bicarbonate Hot Spring (문경 탄산온천수의 지화학적 특성 및 침전물에 대한 광물학적 연구)

  • 김정진;김윤영
    • Journal of Soil and Groundwater Environment
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    • v.7 no.2
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    • pp.45-52
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    • 2002
  • Water chemistry in the Munkyeong hot-spring expresses high values of EC(1,857 $mutextrm{s}$/cm), $HCO_3$(1,250 mg/l), $SO_4$(147.60 mg/l), Mg(43.05 mg/l), and Ca(279.43 mg/l). The precipitates of small quantity is formed in lower temperature, but much of in case apply heat by boiler. Although mineral that is settled from original ground water is most calcite, aragonite and calcite at the same time crystallized in boiler. The $CO_3$ is present predominantly as $HCO_3^{-}$ and $H_2$$CO_3$, $SO_4$, Mg and Ca are present as free ion. Ca is saturated with respect to carbonate such as aragonite and calcite but slightly undersaturated with respect to anhydrite and gypsum Al is saturated with diaspore and gibbsite. The precitptates are composed of carbonate such as calcite and aragonite and amorphous Fe-hydroxide.

Effects of TAM (Taraxacum mongolicum) on Th2 Cytokine Production in MC/9 Mast Cells (포공영(蒲公英)이 MC/9 mast cell에서의 Th2 cytokine 발현에 미치는 영향)

  • Jang, Moon-Hee;Choi, Jae-Song;Bae, Na-Young;Ahn, Teak-Won
    • Journal of Sasang Constitutional Medicine
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    • v.24 no.1
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    • pp.54-65
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    • 2012
  • 1. Objective : The purpose of this study is to investigate the effects of TAM (Taraxacum mongolicum) on Th2 cytokine production in MC/9 mast cells. 2. Methods : The effects of TAM was analyzed by ELISA and Real-time PCR in MC/9 mast cells. Levels of IL-5, IL-13 were measured using enzyme-linked immunosorbent assays(ELISA). mRNA levels of IL-4, IL-5, IL-6, IL-13 were analyzed with Real-time PCR. 3. Results : 1) TAM inhibited the IL-4 production significantly in comparison to PI-control group at concentration of $50{\mu}g/ml$, $100{\mu}g/ml$, $200{\mu}g/ml$. 2) TAM inhibited the IL-13 production significantly in comparison to PI-control group at concentration of $50{\mu}g/ml$, $100{\mu}g/ml$, $200{\mu}g/ml$. 3) TAM inhibited the IL-4 mRNA expression significantly in comparison to PI-control group at concentration of $100{\mu}g/ml$. 4) TAM inhibited the IL-5 mRNA expression significantly in comparison to PI-control group at concentration of $50{\mu}g/ml$, $100{\mu}g/ml$. 5) TAM inhibited the IL-6 mRNA expression significantly in comparison to PI-control group at concentration of $100{\mu}g/ml$. 6) TAM inhibited the IL-13 mRNA expression significantly in comparison to PI-control group at concentration of $100{\mu}g/ml$. 4. Conclusions : These results indicate that TAM (Taraxacum mongolicum) has the effect of decreasing the Th2 cytokine production in the MC/9 mast cell.

Hydrochemical characteristics of ground and geothermal waters in the Haeundae hot-spring area, Pusan, Korea (부산 해운대지역 지하수와 지열수의 수리화학적 특성)

  • Shim, Hyong-Soo;Yeong, We-Yeong;Sung, Ig-Hwa;Lee, Byeong-Dae;Cho, Byong-Wook;Hwang, Jin-Yeon
    • Journal of Environmental Science International
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    • v.9 no.3
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    • pp.241-252
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    • 2000
  • Twenty-two water samples(fifteen groundwater and seven geothermal water samples) were collected to elucidate chemical characteristics of the ground and geothermal waters in the Haeundae hot spring area and its vicinity. Major and honor elements were analyzed for ground and geothermal water samples. The concentrations of $K^+$, Na+$, $Ca^{2+}$, $SO_4^{2-}$, $Cl^-$, ^F^-$ and $SiO_2$ were higher in the geothermal water samples than the groundwater samples except $HCO_3^- and Mg^{2+}$ ions. Based on the contents of Fe, Zn, Cu, Al, Mn and Pb, some of the ground and geothermal water samples are contaminated by anthropogenic sources. The ground waters shown on the Piper diagram belong to $Ca-HCO_3$ type, while the geothermal waters Na-Cl type. The graphs of $Cl^-$ versus $Na^+$, $Ca^{2+}, Mg^{2+}, K^+, SO_4^{2-} and HCO_3^-$ indicate that the groundwater is related partly with mineral-water reaction and partly with anthropogenic contamination, while the geothermal water is related with saline water. On the phase stability diagram, groundwater and thermal water mostly fall in the field of stability of kaolinite. This indicates that the ground and geothermal waters proceed with forming kaolinite. Factor and correlation analyses were carried out to simplify the physicochemical data into grouping some factors and to find interaction between them. Based on the Na-K, Na-K-Ca and Na-K-Ca-Mg geothermometers and silica geothermometers, the geothermal reservoir is estimated to have equilibrium temperature between 125${$\mid$circ}C$ and 160${$\mid$circ}C$.

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Feasibility Study of Environmental Impact Assessment as Instrument for Alternative Dispute Resolutions - Case Study: Environmental Conflicts of Mungjangdae Hot Spring Resort Development - (대체적 분쟁해결 방안으로서 환경영향평가 적용가능성 - 문장대 온천 조성사업 환경갈등 사례연구 -)

  • Hong, Sang-Pyo
    • Journal of Environmental Impact Assessment
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    • v.26 no.6
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    • pp.495-507
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    • 2017
  • The regional environmental conflicts of 'Mungjangdae Hot Spring Development Project' have still now continued from 1985. As a case study, the limitation of environmental litigation and the feasibility of EIA as Alternative Dispute Resolutions (ADR) for solving the conflict of 'Mungjangdae Hot Spring Development Project' was analysed. In order to mitigate environmental and social conflicts, the scope and time of public participation in EIA process which is democratic procedure based on scientific prediction of environmental impact need to be diversified to the extent 'Aarhus Convention', and the burden of environmental litigation need to be alleviated by the 'EIA consultation' from environmental authorities. In decision-making process related with large scale development plan and project which have enormous impact, the effectiveness of the EIA as ADR can be enhanced by applying citizen involvement in environmental governance and the various aspects of sustainability. The effective utilization of EIA public participation such as public hearing to pursue social equity can be a ESSD scheme for the implementation of SDG at regional dimension in Korea.

Ecological Study on Aquatic Plant Communities in the Stream of Thermal Wastewater (온배수 유입하천에 형성된 수생식물군집의 생태학적 연구)

  • 길봉섭;유현경
    • Korean Journal of Environmental Biology
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    • v.17 no.2
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    • pp.139-146
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    • 1999
  • The seasonal changes of the flora at three samples sites such as Sockchong, Wang-gung and Chukrim hot spring by drained thermal waters were investigated from 1997 to 1998. Monthly occurrence of plant species in February and October showed more abundantly control site than that of heavy and/or light polluted sites. This trend demonstrated similarly in terms of seasonal changes of leaf area and plant growths, both fresh and dry weight, too. Cu, Zn, Ni and Pb content including plants from Sockchong hot spring site were increased from April to September at test area than that of control, while that was decreased in October. But Zn and Pb content holding plants from Wang-gung hot spring site represented higher test site than that of control. In short impacts on aquatic plants communities by thermal wastewater of sampled area have happened in the season of low temperature, and their restorations have done in summer season.

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Purification and Characterization of Thermostable Agarase from Bacillus sp. BI-3, a Thermophilic Bacterium Isolated from Hot Spring

  • Li, Jiang;Sha, Yujie;Seswita-Zilda, Dewi;Hu, Qiushi;He, Peiqing
    • Journal of Microbiology and Biotechnology
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    • v.24 no.1
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    • pp.19-25
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    • 2014
  • An extracellular agarase was purified from Bacillus sp. BI-3, a thermophilic agar-degrading bacterium isolated from a hot spring in Indonesia. The purified agarase revealed a single band on sodium dodecyl sulfate-polyacrylamide gel electrophoresis, with an apparent molecular mass of 58 kDa. The optimum pH and temperature of the agarase were 6.4 and $70^{\circ}C$, respectively. The activity of the agarase was stable at high temperatures, and more than 50% activity was retained at $80^{\circ}C$ for 15 min. Furthermore, the enzyme was stable in the pH range of 5.8-8.0, and more than 60% of the residual activity was retained. Significant activation of the agarase was observed in the presence of $K^+$, $Na^+$, $Ca^{2+}$, $Mg^{2+}$, and $Sr^{2+}$; on the other hand, $Ba^{2+}$, $Zn^{2+}$, $Cu^{2+}$, $Mn^{2+}$, $Co^{2+}$, $Fe^{2+}$, and EDTA inhibited or inactivated the enzyme activity. The components of the hydrolytic product analyzed by thin-layer chromatography showed that the agarase mainly produced neoagarobiose. This study is the first to present evidence of agarolytic activity in aerobic thermophilic bacteria.