• Title/Summary/Keyword: Dam types

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Development and Application of Acute Bioassay Method on Solid Samples using Bioluminescence Producing Bacteria (박테리아 발광 특성을 이용한 고형시료 급성 독성법 연구 및 적용)

  • Ko, Kyung-Seok;Kong, In-Chul;Jung, Hong-Gyung;Ro, Yul
    • Journal of Soil and Groundwater Environment
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    • v.12 no.6
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    • pp.46-52
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    • 2007
  • A toxicity method using bioluminescence producing bacteria, Escherichia coli DH5 RB1436, was developed and applied on solid environmental samples. In the assay, 1 g soil sample was mixed with 4 ml RB1436 strain. Sets amended with p-buffer were employed for control in soil test, showing approximately 108% of sets amended with combusted soils. Measurable differences were observed between relatively more polluted groups (HP) and less polluted groups (LP) of soil samples, showing average toxicity 43 and 26%, respectively, in direct soil toxicity test. $EC_{50}$'s for all soil groups appeared in the range of $1.8{\sim}4.6\;g$, but those of sediments from dam reservoir and refuses were below 0.22 g. This developed bioassay should prove useful as a screening test for toxicity in various types of environmental solid samples.

A Comparative Study on the Landscape Color Perception according to Existence of Energy Business in Rural Areas (농촌의 에너지사업 유무에 따른 경관색채 인식 비교연구)

  • Kim, Eun-Ja;Han, Chae-Won;Choi, Jin-Ah;Kwon, Soon-Chan
    • Journal of Agricultural Extension & Community Development
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    • v.24 no.2
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    • pp.127-142
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    • 2017
  • Recently, the rapidly growing new generation of renewable energy projects has emerged as an artificial building that creates a mix of natural environments and disruption to the environment. It serves as a quality inhibitor for rural landscapes and implies the absence of favorable rural landscape. Therefore, the study looked at the color scheme of residents, visitors, and experts in the village, which changed the color of the landscape, and analyzed the color scheme of residents, visitors, and experts. In order to do so, the village was divided into three types and conducted a survey by the general public and experts. In the case of the survey, residents of the three districts (Yeoju, Dam yang, Jeju) were surveyed for 210 residents, and the survey conducted a survey and analysis of 30 people in the area. As a result, both the general public and experts recognized the color change in the energy business, which resulted in the identification of associations and colors of the village. In addition, the recognition and satisfaction of the current situation showed that the education programs for the public were more important than the professionals, as the public show ed low levels of public awareness. Based on this research, we expect to be able to utilize the plan as a guideline for the project of installing solar panels, which is expected to be implemented in the beginning of the project, and can be used as a guideline for the establishment of the solar panels.

A Randomized Active Controlled Clinical Trial to Evaluate Safety and Efficacy of a Topical Unani Formulation Marham Kharish Jadeed in the Management of Qūbā (Tinea Corporis)

  • Aaliya, Aaliya;Nawab, Mohammad;Kazmi, M.H.;Ayyub, Sana
    • CELLMED
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    • v.10 no.3
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    • pp.22.1-22.7
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    • 2020
  • Introduction: Qūbā (Tinea Corporis) is a very common disease widely prevalent worldwide. 20 - 25 % individuals suffer for this stubborn disease. Unani System of Medicine offers its treatment. There are many pharmacopoeial formulations indicated for various types of dermatophytic infections. In this study clinical efficacy and safety of the topical Unani formulation Marham Kharish Jadeed (a compound drug in the dosage form of an ointment) was assessed and compared with a standard conventional medicine. Materials and methods: A clinical study was conducted on 60 participants of qūbā randomized into test and control groups (n=30 in each group). The participants were clinically diagnosed and confirmed by microscopy of skin scrapings. The efficacy of the Unani formulation was assessed in terms of TSS score and elimination of fungal elements from the skin lesions. The data collected were analyzed statistically. Results and discussion: The study showed that the Unani formulation had comparatively better efficacy clinically than conventional medicine Terbinafine hydrochloride 1% cream in terms of reduction of itching, erythema, scaling, peripheral raised margins of the lesion comparing to baseline. In this study, 27 participants in test group and 18 participants in control group were completely cured (≥75% reduction in TSS Score with Mycological Cure) after 4 weeks of treatment. The efficacy of the Unani formulation was found significant statistically. The individual drugs of the formulations having analgesic (Musakkin), blood purifier (Muṣaffi-i-Dam), demulcent (Mulaṭṭif), antifungal (Qātil-i-fafūndῑ), detergent (Jālῑ), refrigerant (Mubarrid) and antiseptic (Dāfi'-i-'Ufūnat) properties might be responsible for the efficacy of Unani formulation. Conclusion: The findings of the study suggested that the Unani formulation was found effective and safe in the management of qūbā. No local and systemic adverse effect was reported during the study.

A Comparison Study on the Techniques for DEM Extraction from SAR Imagery (SAR 영상을 이용한 수치표고모형 추출기법의 비교 연구)

  • Seo, Byoung-Jun;Kim, Yong-Il;Eo, Yang-Dam;Jeong, Jae-Joon
    • Journal of Korean Society for Geospatial Information Science
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    • v.6 no.2 s.12
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    • pp.21-34
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    • 1998
  • SAR is an active imaging sensor emitting its own energy source and can be operated in all weather conditions. Thus SAR provides data which can not be obtained by an optical sensor. In this study, the potentials and problems of the techniques for DEM extraction from the SAR imagery were evaluated through theoretical researches and practical experiments. And then the accuracy was tested by RMS error between the digitized map contour and the results from this experiment. Here, two types of DEM extraction method were evaluated. One was an analytical photogrammetric technique, and the other was a SAR interferometric processing. From the experiment, we found that the photogrammetric technique is currently the most suitable method considering topographic conditions of Korea. In the SAR interferometry technique, we also conclude that the problems caused by decorrelations due to the temporal reasons and due to the scattering effects from vegetation should be solved.

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A Study on Constructing Bottom-up Model for Electric Sector (전력부문 온실가스 감축정책 평가를 위한 상향식 모형화 방안)

  • Kim, Hugon;Paik, Chunhyun;Chung, Yongjoo;Ahn, Younghwan
    • Journal of Energy Engineering
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    • v.25 no.3
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    • pp.114-129
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    • 2016
  • Since the release of mid-term domestic GHG goals until 2020, in 2009, some various GHG reduction policies have been proposed to reduce the emission rate about 30% compared to BAU scenario. There are two types of modeling approaches for identifying options required to meet greenhouse gas (GHG) abatement targets and assessing their economic impacts: top-down and bottom-up models. Examples of the bottom-up optimization models include MARKAL, MESSAGE, LEAP, and AIM, all of which are developed based on linear programming (LP) with a few differences in user interface and database utilization. The bottom-up model for electric sector requires demand management, regeneration energy mix, fuel conversation, etc., thus it has a very complex aspect to estimate some various policies. In this paper, we suggest a bottom-up BAU model for electric sector and how we can build it through step-by-step procedures such that includes load region, hydro-dam and pumping storage.

Basic Study on the Image Instrument of the Facial-form by the 3D-facial Scanner (얼굴스캐너를 활용한 안면형상 영상진단기의 기초 연구)

  • Kim, Gyeong-Cheol;Lee, Jeong-Won;Kim, Hoon;Shin, Soon-Shik;Lee, Hai-Woong;Lee, Yong-Tae;Chi, Gyoo-Yong;Kim, Jong-Won
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.2
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    • pp.497-501
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    • 2008
  • 3D facial scanner for an accurate analysis is measured precisely a distance in straight, a distance in curved line, an angle in 3D data, the area of surface. We can easy acquire 3D data by the method of 0.8sec in each scan with easy handling, simple merge to whole face, harmless and fast process. In the HyungSang medicine, the inspection of the facial shape includes the Dam(gall bladder) - Bang Kwang(urinary bladder) body, the Jung${\cdot}$Gi${\cdot}$Shin${\cdot}$Hyul, the six merdian types etc. And we will collect the evidence based date verifing in the HyungSang clinical medicine. As we will analyze the facial whole form and the size${\cdot}$length${\cdot}$angle of the facial part, put the facial form's standardization on a solid foundation.

Low Flow Frequency Analysis of Steamflows Simulated from the Stochastically Generated Daily Rainfal Series (일 강우량의 모의 발생을 통한 갈수유량 계열의 산정 및 빈도분석)

  • Kim, Byeong-Sik;Gang, Gyeong-Seok;Seo, Byeong-Ha
    • Journal of Korea Water Resources Association
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    • v.32 no.3
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    • pp.265-279
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    • 1999
  • In this study, one of the techniques on the extension of low flow series has been developed, in which the daily streamflows were simulated by the Tank model with the input of extended daily rainfall series which were stochastically generated by the Markov chain model. The annual lowest flow serried for each of the given durations were formulated form the simulated daily streamflow sequences. The frequency of the estimated annual lowest flow series was analyzed. The distribution types to be used for the frequency analysis were two-parameter and three-parameter log-normal distribution, two-parameter and three-parameter Gamma distribution, three-parameter log-Gamma distribution, Gumbel distribution, and Weibull distribution, of which parameters were estimated by the moment method and the maximum likelihood method. The goodness-of-fit test for probability distribution is evaluated by the Kolmogorov-Sminrov test. The fitted distribution function for each duration series is applied to frequency analysis for developing duration-low flow-frequency curves at Yongdam Dam station. It was shown that the purposed technique in this study is available to generate the daily streamflow series with fair accuracy and useful to determine the probabilistic low flow in the watersheds having the poor historic records of low flow series.

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Literatural observation on the Paralysis agitans (진두마비(震頭痲痺)에 대(對)한 문헌적(文獻的) 고찰(考察))

  • Shin, Hyeon-chul;Kim, Jong-dae;Jeong, Ji-cheon
    • The Journal of Dong Guk Oriental Medicine
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    • v.4
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    • pp.81-98
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    • 1995
  • This study is that examine and readjust cause-pathology, symptom, treatment, clinical reports recorded in western medicine, successive literatures of oriental medicine and recent literatures and journals of chinese medicine about Paralysis agitans. The results was followed ; 1. Paralysis agitans is similar with symptoms of Jinjeon, Qi, Gyeong, Gyejong, Lyeon and Pyengo, Tantan, Jungbu of Jungpung. 2. There are Pung, Hwa, Dam, Eo in the causes of disease, Gansinyinheo, Qihyeolyangheo, Jeokyeoldamhwa, Qichehyeoleo, Ganpungnaedong etc in clinical types, to be concerned with liver, kidney, heart and spleen in Jangbu, Gansinyinheo and Qihyeolyangheo are concerned wiyh idopathic paralysis agitans, Jeokyeoldamhwa and Qichehyeoloe successive it, Ganpungnaedongboth idiopathic and successive. 3. Treatments are Jayinjamyang, Pyeonggansikpung, Ikqiyanghyeol, Sikpunghwallak, Seoganhaewool, Hwalhyeoltonglak etc, and prescriptions are Yukmi, Chunmagudeongum, Paljintang, Tonggyuhwalhyeoltang, Hyeolbuchukeotang etc. 4. In caring, it is necessary to live pleasantly, to be temperate sexual intercourse, to control, diet, to do suitable exercises, for example Qigong, Physical exercises, Walking etc. 5. In clinical reports, this disease frequently-occurs more than 60 years, male is more than female, and there are many complications as hypertension and arteriosclerosis etc. The majority of causes are Gansinyinheo, Qichehyeoleo, and the others are Qihyeolyangheo, Damhwa, Ganpungnaedong, Qigiulche, Yeolyoesimsin etc, the majority of care Jabogansin, Yukyinsikpung, Hwalhy-eolhrwaeo, and the others Ikqiyanghyeol, Haldamtonglak, Seoganhaewool. Curing period is generally from 2 to 3 months. In effectiveness rate, successive Qichehyeoleo type is the highest, and idiopathic Qihyeolyangheo type is the lowest. Effectiveness of rigidity is higher than tremor.

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Planting Properties of Herbaceous Plant and Cool-season Grass in Environmentally Friendly Planting Block Using CSG Materials (CSG 재료를 이용한 친환경 식생 블록 내 초본식물 및 한지형 잔디의 식생 특성)

  • Kim, Young-Ik;Yeon, Kyu-Seok;Kim, Yong-Seong
    • Journal of The Korean Society of Agricultural Engineers
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    • v.52 no.1
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    • pp.33-40
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    • 2010
  • The cemented sand and gravel (CSG) method is a construction technique that adds cement and water to rock-like materials, such as rivered gravel or excavation muck which that can be obtained easily at areas adjacent to dam sites. This study was performed to evaluate the planting properties of herbaceous plant and cool-season grass in CSG blocks that were manufactured by using CSG materials to develop environmentally friendly CSG method. The two types of CSG-0 without cement and CSG-100 with $100\;kg/m^3$ of cement were designed to evaluate compaction, unconfined compressive strength and growth of plants with cement content by using modified E compaction. To analyze growth properties of plants, germination ratio, visual cover, plant height and root length were measured in 4 weeks and 8 weeks after sowing. As the results, the germination regardless kinds of plants started within 5~7days and the germination ratio were in the range of 50~60 %. The visual cover of kinds of plants by visual rating system were in the range of 7~8 and the visual cover of tall fescue and perennial ryegrass was higher than that of lespedeza cuneata. The plant height and root length for tall fescue and perennial ryegrass in 8 weeks after sowing were in the range of 22~26 cm, 12~15 cm and 4~6 cm, 3~5 cm, respectively.

A Economic Feasibility Study on Environmental Ecology Flow Supply Plan using Agricultural Reservoir - Focused on Dongbok River - (농업용저수지를 이용한 환경생태유량 확보방안 경제성 비교 연구 - 동복천을 중심으로 -)

  • Park, Jin-hyeon;Ko, Jae han;Sung, Mu-hong;Jung, Hyoung-mo;Park, Tae-sun;Kwak, Yeong Cheol;Choi, Woo-young;Boem, Jina;Jeung, Minhyuk;Yoo, Seung-hwan;Yoon, Kwang-sik
    • Journal of The Korean Society of Agricultural Engineers
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    • v.61 no.5
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    • pp.33-47
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    • 2019
  • The environmental ecological flow (EEF) of stream or river will be designated according to the enforcement of the Water Environment Preservation Act. Previous researches by Ministry of Environment have proposed agricultural reservoirs as alternative resources to secure river flow where multi-purpose dam does not exist. However, agricultural reservoirs are constructed for the supply of agricultural water, and in fact, there is not a sufficient amount of water to be supplied to rivers as EEF. Therefore, this study examines the economic feasibility of securing EEF through the remodeling or construction of agricultural reservoirs. We investigated water balance of reservoir through simulation of three types of water supply demands such as agricultural water, agricultural water and river maintenance flow, and agricultural water and environmental ecology flow. The economics analysis was conducted on water supply demands and corresponding remodeling or construction of reservoirs. As a result, it was found that the method of securing through heightening existing reservoir enhancement is economically feasible. However, it was not possible to secure all the amount of the EEF due to the size limitation of existing reservoirs or constrain of the watershed for newly built reservoir. Therefore, in order to secure all of the EEF, the utilization of other alternatives as well as agricultural reservoirs should be considered. This study demonstrated the method of economical feasibility study of securing river maintenace flow and EEF using agricultural reservoirs and other considerations.