• Journal of Physiology & Pathology in Korean Medicine
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• v.20 no.2
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• pp.488-493
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• 2006

To make a objective diagnosis of Dam Hun(痰暈), we investigated the 63 patients with Dam Hun(痰暈) and 34 normal people as control group. we compared the thermal difference between Chon-jung(CV17 ) and Chung-wan(CV12 中脘), Chon-jung(CV17 ) and Gwan-won(CV4 關元) and we compared the thermal difference of Yang-mun(ST21 梁門), Chun_chu(ST25 天樞), Su-do(ST28 水道), too. All 63 patients had dizziness and GI trouble. They had the symptom - fatigue, nausea vomitting, head heaviness, indigestion, cold limbs, headache, heart burn, constipation, diarrhea, anorexia. And some had edema, numbness, insomnia, palpitation, facial flushing, dysuria, ringing. Considering the average temparature of Chon-jung(CV17 ), Chung-wan(CV12 中脘), Gwan-won(CV4 關元), Yang-mun(ST21 梁門), Chun-chu(ST25 天樞), Su-do(ST28 水道) between the patients group and the control group, the patients group were lower than the control group except for Chon-jung(CV17 ), Gwan-won(CV4 關元), but the statistical significance was not. Considering the thermal difference of Chon-jung(CV17 ) and Chung-wan(CV12 中脘), Gwan-won(CV4 關元), Yang-mun(ST21 梁門), Chun-chu(ST25 天樞), Su-do(ST28 氷道) between the patients group and the control group, the temparature deviation of Chon-jung(CV17 ) and Chung-wan(CV12 中脘), Chon-jung(CV17 ) and Yang-mun(ST21 梁門) was significant. We suggest that coldness of upper abdomen is significant in diagnosis of Dam Hun(痰暈).

• 한국문화재보존과학회:학술대회논문집
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• 2006.04a
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• pp.61-66
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• 2006

• Proceedings of the Korean Geotechical Society Conference
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• 2003.03a
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• pp.111-116
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• 2003

Instrumentation system in Concrete Face Rockfill Dam(CFRD) can give special attention to the deformation characteristics of the rockfill and behavior of the concrete membrane during construction, reservoir filling and subsequent phase of operation. It also contains data about vertical and transversal compressibility moduli of the rockfill, deflections in the concrete slab, and draws comparisons with other concrete face rockfill dams of recent construction. In this paper, the internal deformation data from D dam monitored by means of hydrostatic settlements cells are analyzed. Observations cover the construction stage, reservoir filling and up to March 1991. The above method can be concluded D dam was well constructed and maintained.

• Journal of Environmental Science International
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• v.20 no.12
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• pp.1635-1646
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• 2011

This April 5th dam and Hwanggang dam, which are located in Imjin river, North Korea, become the main causes of water shortages and damages in Imjin river downstream. April 5th dam is assumed a small or medium-sized dam, its total storage volume reaches about 88 million $m^3$. And Hwanggang dam, multi-purposed dam of total storage volume approximately 0.3 billion $m^3$ to 0.4 billion $m^3$ is used as source of residental or industrial water in Gaeseong Industrial Complex. North Korea, which has April 5th dam and Hwanggang dam in Imjin river, manages water of approximately 0.39 billion $m^3$ to 0.49 billion $m^3$ directly. As water is storaged or discharged through dam, it causes a severe damage to areas in Yeoncheon-gun and Paju city, South Korea. Therefore, this study intends to analyze and estimate runoff through dam construction by using hydrological observation data and artificial data such as service water supply and agricultural water in Imjin river, water shortage and damage correctly.

• Journal of Environmental Science International
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• v.31 no.2
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• pp.103-116
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• 2022

Heavy metal contaminations were investigated in fishes inhabiting the basins of Andong, Imha and Yeongju dam basins along the upper stream of the Nakdong river. The characteristics of heavy metals contamination in fish were investigated based on sampling sites located in the Andong dam basin. The muscle tissue was analyzed for 267 objects of 26 species from the Andong dam, 50 objects of 17 species from Imha dam, 38 objects of 9 species fromYoungju dam basin.The type and amount of heavy metals concentrated in the body of the fishes was found to be species-dependent. The heavy metal species which contamination increase through the Seokpo smelter are chromium, zinc, cadmium, and lead, and these are very likely the influence of the smelter. The concentration of eight heavy metals in fish from the Andong dam basin was higher than that in fish from the Imha and Youngju dam basins; the values for zinc, arsenic, and cadmium were significantly higher. However, mercury and lead exhibited high values in the Imha and Yeongju dam basins, respectively.

• Proceedings of the Korea Water Resources Association Conference
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• 2023.05a
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• pp.246-246
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• 2023

Multi-purpose dams are operated accounting for both physical and socioeconomic factors. This study aims to evaluate the utility of a deep learning algorithm-based model for three multi-purpose dam operation (Seomjin River dam, Juam dam, and Juam Control dam) in Seomjin River. In this study, the Gated Recurrent Unit (GRU) algorithm is applied to predict hourly water level of the dam reservoirs over 2002-2021. The hyper-parameters are optimized by the Bayesian optimization algorithm to enhance the prediction skill of the GRU model. The GRU models are set by the following cases: single dam input - single dam output (S-S), multi-dam input - single dam output (M-S), and multi-dam input - multi-dam output (M-M). Results show that the S-S cases with the local dam information have the highest accuracy above 0.8 of NSE. Results from the M-S and M-M model cases confirm that upstream dam information can bring important information for downstream dam operation prediction. The S-S models are simulated with altered outflows (-40% to +40%) to generate the simulated water level of the dam reservoir as alternative dam operational scenarios. The alternative S-S model simulations show physically inconsistent results, indicating that our deep learning algorithm-based model is not explainable for multi-purpose dam operation patterns. To better understand this limitation, we further analyze the relationship between observed water level and outflow of each dam. Results show that complexity in outflow-water level relationship causes the limited predictability of the GRU algorithm-based model. This study highlights the importance of socioeconomic factors from hidden multi-purpose dam operation processes on not only physical processes-based modeling but also aritificial intelligence modeling.

• Journal of Physiology & Pathology in Korean Medicine
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• v.23 no.1
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• pp.263-268
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• 2009

Pripheral vertigo occurs if there is a problem with the part of the inner ear that controls balance or with the vestibular nerve, which connects the inner ear to the brainstem. Peripheral vertigo is caused by benign paroxysmal positional vertigo(BPPV), Menieres disease, vestibular neuronitis, or labyrinthitis. We diagnosed five patients who have severe vertigo as peripheral vertigo and Dam Hun. We treated them with Banhabaeckchulchunma-tang gagam and acupuncture. After treatment, vertigo and other symptoms -nausea, vomiting, abdominal discomfort had improved. So I report these cases, but more clinical case reports are needed.

• Journal of The Korean Society of Agricultural Engineers
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• v.54 no.3
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• pp.103-111
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• 2012

Works for dam heightening plan have dual purposes: flood disaster prevention by securing additional storage volume and river ecosystem conservation by supplying stream maintenance flow. Now, the dam heightening project is in progress and there are 93 dam heightened reservoir. After the dam heightening project, 2.2 hundred million ton of flood control volume in reservoirs will be secured. Thus it is necessary to evaluate the effects of the dam heightening project on watershed hydrology and stream hydraulics, and resulting flood damages. This study was aimed to assess the impact of outflow from the dam heightened reservoir group on the Whangryong river design flood. The HEC-HMS (Hydrologic Engineering Center-Hydrologic Modeling System) model was used for estimating flood discharge, while HEC-5 (Hydrologic Engineering Center-5) was used for reservoir routing. This study analysed flood reduction effect on 100yr and 200yr return periods about the before and after heightening of agricultural dams. Based on the results of this study, the reduction of flood peak discharge at downstream of the reservoir group was estimated to be about 41% and 53% for 100yr and 200yr frequencies, respectively.

• Cement Symposium
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• s.37
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• pp.244-250
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• 2010

• The Journal of Internal Korean Medicine
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• v.44 no.5
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• pp.911-919
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• 2023

Objective: The purpose of this study is to report the efficacy of using Korean medicine treatment on dizziness diagnosed as Dam Hun. Methods: The patient received herbal medicine treatment of Banhabakchulchunma-tang and acupuncture from May 18, 2023 to June 3, 2023. To evaluate the treatment, we used the Korean Version of the Dizziness Handicap Inventory (K-DHI) to measure dizziness. The degree of dizziness, headache, and dyspepsia was also evaluated using the Visual Analogue Scale (VAS). Results: The patient's VAS scores improved after treatment. The change in the K-DHI scores showed that the patient's dizziness symptoms were relieved. Conclusions: The results of this study suggest that Korean medicine therapies may be effective for treating dizziness.