• Title/Summary/Keyword: Salt field

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A Syntaxonomical Study on the Vegetation of Ruined Salt Field in Chonnam Province (전남 해안 지역에 분포하는 폐염전 염생식물의 군락분류학적 연구)

  • 양효식
    • The Korean Journal of Ecology
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    • v.22 no.5
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    • pp.265-270
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    • 1999
  • A syntaxonomical study about the vegetation of ruined salt field in Chonnam province was carried out and its soil properties were also determined. This study was accomplished by the methods of Mueller-Dombois and Ellenberg. This study was designed to clarify the syntaxonomical and synecological characteristics of the vegetation of ruined salt field in Chonnam province. The annual herbaceous halophyte communities of ruined salt field in Chonnam province were consisted of 5 communities: Salicornia herbacea community, Sueada japonica community, Sueada maritima community, Atriplex gmelini community, Spergularia marina community. And the perennial herbaceous halophyte communities of ruined salt field in Chonnam province were consisted of 3 communities: Aster tripolium community, Carex scabrifolia community, Phragmites communis community. The subsidiary knowledges of this study will make it possible to accumulate information on the distribution pattern of coastal salt marsh vegetation, and also will provide practical information for conservation of coastal ecosystems.

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Study on the Salt Tolerance of Rice and Other Crops in Reclaimed 2. On the Salt Tolerance of Chinese Cabbage and Cabbage in Various Salty Conditions (간척지에서 수도 및 기타작물의 내염성에 관한 연구 2. 여러 가지 염분조건에서 배추와 양배추의 내염성에 관하여)

  • 임형빈
    • Journal of Plant Biology
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    • v.12 no.3
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    • pp.8-14
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    • 1969
  • Salt tolerances of Chinese cabbage and cabbage were observed by means of the sand culture and field experiment. The point of 50% yield reduction of Chinese Cabbage was 1% of salt concentration in sand culture. The Na absorption in the salty upland conditions was increased but the absorption of Ca, Mg were interrupted as the salt concentration was raised and there were no differences in the absorption of N and P. The Si absorption was increased at low salty conditions, but the salt concentration was raised, the absorption was interrupted drastically. The cabbage was more stronger salt tolerance than Chinese cabbage, and it was possible to prevent the salt damage significantly by planting on sloping beds instead of planting on the double-row beds in field condition.

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A Study on the Salt Intake Amounts of Manufacturing Workers in Pusan Area (부산지역 산업장 근로자들의 식염 섭취량에 관한 조사)

  • Kim, Don-Gyun;Lee, Su-Il;Jeong, Gap-Yeol;Lee, Chung-Ryeol;Lee, Yong-Hwan;So, Dong-Jin
    • 산업보건소식
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    • no.47
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    • pp.4-14
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    • 1987
  • The authors investigated estimated amounts of salt intake of workers in manufacturing industries who consisted of 1,506 males in 6 manufacturing fields and 476 females in 3 fields in Pusan area using filter paper method which was developed recently. The obtained results were as follows; 1. Mean excretion amounts of urinary electrolytes were Na 200.7 mEq/l, K 44.2 mEq/l and Cr 1.12g/l in male and Na 190.2 mEq/l, K 44.0 mEq/l and Cr 1.10g/1 in female. 2. Mean daily salt intake amounts were 19.4g in male and l5.3g in female. 3. By the fields of manufacturing industries in male, workers in metal product field had the highest salt intake as 20.0g, and the following were workers in food and tobacco field as 19.7g, workers in textile, wearing apparel and leather field as 19.6g in order. 4. In female, workers in textile, wearing apparel and leather field had the highest salt intake as l5.7g and the next were workers in chemical, coal and rubber products field as l5.0g and workers in fabricated metal products, machinery and equipments as l4.3g, respectively.

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Pulsed Electric Field Effects to Reduce the Level of Campylobacter spp. in Scalder and Chiller Water during Broiler Chicken Processing

  • Shin, Dae-Keun;Martin, Bradely C.;Sanchez-Plata, Marcos X.
    • Asian-Australasian Journal of Animal Sciences
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    • v.24 no.9
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    • pp.1314-1317
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    • 2011
  • To evaluate the effects of pulsed electric field (PEF) application on scalder and chiller water on Campylobacter contamination, four different treatments under three different water conditions including hard scalder water ($55^{\circ}C$), soft scalder water ($45^{\circ}C$) and chiller water, were applied as follows: i) a control treatment with no salt and no electric treatment, ii) a PEF only treatment, iii) a PEF treatment with 0.5% salt water, and iv) a PEF treatment with 1% salt water treatment. The use of PEF in hard scalding water showed an effect of reducing Campylobacter when compared to the control during the 200 s timeframe. With the addition of salt, the intervention caused at least 5.81 log CFU/ml reduction of Campylobacter counts after 200 s of PEF exposure. Similar effects were observed under soft scalding conditions. Campylobacter reductions were evident under chilling conditions with up to 2.00 log for PEF only, 5.77 log for PEF+0.5% salt and 2.69 log for PEF+1% salt treatment in water. Therefore, the current PEF setting for the scalder and chiller water can be successfully used to reduce pathogenic loads of Campylobacter on broiler chicken carcasses, and further research may be necessary to apply it in the poultry processing industry.

Salt & Pepper Noise Removal Using Histogram and Spline Interpolation (히스토그램 및 Spline 보간법을 이용한 Salt & Pepper 잡음 제거)

  • Ko, You-Hak;Kwon, Se-Ik;Kim, Nam-Ho
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2017.10a
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    • pp.691-693
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    • 2017
  • As the modern society develops into the digital information age, the application field is gradually expanded and used as an important field. The image data is deteriorated due to various causes in the process of transmitting the image, and typically there is salt & pepper noise. Conventional methods for removing salt & pepper noise are somewhat lacking in noise canceling characteristics. In this paper, we propose a weighted filter using the histogram of the image damaged by salt & pepper noise and a spline interpolation method according to the direction of the local mask.

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The Properties of Concrete(BlueCon) using Fluosilicate Salt Based Admixtures and Estimation of Field Application (규불화염계 혼화제를 사용한 콘크리트의 특성 및 현장적용성 평가)

  • Choi Se Jin;Cho Jae Hyung;Kim Do Su;Oh Joo Yeol;Lee Seong Yong;Lee Seong Yeon
    • Proceedings of the Korea Concrete Institute Conference
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    • 2005.11a
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    • pp.359-362
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    • 2005
  • This study was performed to know the properties and estimation of field application of concrete(Bluecon) using fluosilicate salt based admixture made from by-product during phosphoric acid manufacturing process. Mix proportions for experiment were modulated at 0.45 of water-binder ratio and $0.5-2.0\%$ of adding ratio of fluosilicate salt based inorganic compound. Evaluation for Field application of concrete was carried out batch plant test at remicon factory and building construction. According to results. it was found that slump of concrete(Bluecon) using fluosilicate salt based admixture is higher about 10 to 20 mm than plain concrete, and air content is similar to each other. And the water permeability and crack of bluecon is lower than that of plain concrete.

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Korean Solar Salt Ameliorates Colon Carcinogenesis in an AOM/DSS-Induced C57BL/6 Mouse Model

  • Ju, Jaehyun;Kim, Yeung-Ju;Park, Eui Seong;Park, Kun-Young
    • Preventive Nutrition and Food Science
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    • v.22 no.2
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    • pp.149-155
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    • 2017
  • The effects of Korean solar salt on an azoxymethane (AOM)/dextran sodium sulfate (DSS)-induced colon cancer C57BL/6 mouse model were studied. Korean solar salt samples (SS-S, solar salt from S salt field; SS-Yb, solar salt from Yb salt field), nine-time-baked bamboo salt (BS-9x, made from SS-Yb), purified salt (PS), and SS-G (solar salt from $Gu\acute{e}rande$, France) were orally administered at a concentration of 1% during AOM/DSS colon cancer induction, and compared for their protective effects during colon carcinogenesis in C57BL/6 mice. SS-S and SS-Yb suppressed colon length shortening and tumor counts in mouse colons. Histological evaluation by hematoxylin and eosin staining also revealed suppression of tumorigenesis by SS-S. Conversely, PS and SS-G did not show a similar suppressive efficacy as Korean solar salt. SS-S and SS-Yb promoted colon mRNA expression of an apoptosis-related factor and cell-cycle-related gene and suppressed pro-inflammatory factor. SS-Yb baked into BS-9x further promoted these anti-carcinogenic efficacies. Taken together, the results indicate that Korean solar salt, especially SS-S and SS-Yb, exhibited anti-cancer activity by modulating apoptosis- and inflammation-related gene expression during colon carcinogenesis in mice, and bamboo salt baked from SS-Yb showed enhanced anti-cancer functionality.

Advanced Weed Control and Soil Environmental Survey in Lawn (잔디밭의 효과적인 잡초 방제와 토양 환경 조사)

  • 문영희;김용휘;김영석;양희석
    • Asian Journal of Turfgrass Science
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    • v.10 no.3
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    • pp.177-186
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    • 1996
  • The effects of salt are studied on control of weeds and growth of Korean turfgrass(Zoysia japon-ica Steud.). And the mobility of salt were determined in a lawn field. At post-emergence stage, the growth of the 13 weeds such as Trifolium repens, Erigeron canadensis, Artemisia prieceps, Equi-setum arvense, etc were controlled by treatment of salt and salt water, Pea-annua and Equisetum arvense were tolerant to salt compared with the other 11 weeds. At pre-emergence stage, the salt controlled the germination of the weeds in soil. 300~500 kg /10a salt and 20~30 % salt waterwere enough for the control of weeds, However, salt water injuried the lawngrass except the dormancy stage. The mobility of salt in soil was increased by rainfall. After 160mm of rainfall, the salinity in the soil treated with salt 500kg /l0a was below 0.3 ms/cm in surface soil and about 0.1 ms /cm in soil 30 cm depth. Key words: Soil environmental survey, Korean turfgrass, Salt, Salt water.

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Salt and Pepper Noise Removal using 2-Dimensional Spline Interpolation (2차원 스플라인 보간법을 이용한 Salt and Pepper 잡음 제거)

  • Kwon, Se-Ik;Kim, Nam-Ho
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.21 no.6
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    • pp.1167-1173
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    • 2017
  • As the society increasingly embraces the high - tech digital information age, the field of image processing becomes progressively more branched out and becoming an imperative field. However, image data is deteriorated due to various causes during transmission and salt and pepper noise is typical. Typical methods for removing salt and pepper noise include CWMF, SWMF, and A-TMF. However, existing methods are somewhat insufficient in their ability to remove noise in salt and pepper noise environments. Therefore, in this paper, after it is determined whether noise removal is needed, the following measures were taken. If the center pixel was non-noise, the original pixel was preserved, If it was noise, we proposed a two - dimensional spline interpolation method and a median filter depending on the noise density of the local mask. For the purpose of objective judgment, we compared the results with that of existing methods and used PSNR (peak signal to noise ratio) as a judgment criterion.

Salt Farm Parallel Solar Power System:Field tests and Simulations (염전 병행 태양광 발전의 실증과 시뮬레이션)

  • Park, Jongsung;Kim, Bongsuck;Gim, Geonho;Lee, Seungmin;Lim, Cheolhyun
    • Current Photovoltaic Research
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    • v.7 no.4
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    • pp.121-124
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    • 2019
  • In this research, the concept of a salt farm parallel solar power system, which produce salt and electricity at the same site, is proposed for the first time in the world. The concept is that large waterproof plates made by interconnected solar modules are installed at the bottom of the salt farm. The pilot system was successfully installed at a sea shore, and verified its feasibility as a solar power plant. For deeper understanding, simulations for power prediction of the system were carried out and compared with the field test results. The power generation of the salt farm parallel system is comparable to conventional solar power plants. The cooling effect by sea water contributes more to the increase in the crystalline silicon photovoltaic module performance than the absorption loss due to sea water by maintaining certain height above the module.