• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2008년도 춘계학술대회 논문집
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• pp.697-699
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• 2008

• 산업기술연구
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• 제18권
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• pp.425-430
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• 1998

The Asan Bay area Korea is situated in an unbalance or water supply and demand relating to the Ansung, Sapkyo, Dangjin and Youmwha rivers and their estuary reservoirs. The multi-reservoir operation was studied by the Hierarchical Operation Model for Multi-reservoir System(HOMMS) assuming that these four estuary reservoirs were linked to each other in order. The result of this study shows that storage capacity deficiency in 2011 was estimated as 8 MCM in the Sapkyo and 31 MCMin Dae Ho estuary reservoir, respectively. In case of linking four reservoirs, the water deficiency will not occurs in all the reservoirs even if additional agricultural water of 78 MCM/yr was supplied. Total additional water demand for agricultural, municipal and industrial uses was estimated as 321.9 MCM/yr while additional supply by linking the reservoirs was estimated as 160.4 MCM/yr. 50% of additional demand. The remaining 161.5MCM/yr would be supplied transferring other watershed.

• 대한약침학회지
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• 제10권2호통권23호
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• pp.107-117
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• 2007

Objectives : This study is desinged in order to evaluate the Poison extraction method for the Atopic dermatitis. Methods : The authors observed the two cases of Atopic dermatitis patients who previously used steroid-based ointment. for treating the Poison Extraction Method. Conclusions : 1. In case 1, the patient with mild case of Atopic dermatitis in face is treated with the Poison extraction method. Rash symptoms intensed for first few days. As sweating appeared in the local area from the seventh day, all the symptoms was disappeared rapidly. No recurrence was found. 2. In case 2, the patient with severe case of Atopic dermatitis in whole body is treated with the Poison extraction method. The symptoms intensed after two months and all the symptoms of itchiness, rash, scaly letter dissapeared in the third and fourth months. No recurrence was found. 3. In both cases of mild and severe cases of Atopic dermatitis. all the symptoms were disappeared and no recurrence was found with the Poison Extraction Method.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1991년도 하계학술대회 논문집
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• pp.244-246
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• 1991

Recently, a study on LB ultra thin film of molecular size is widely performed. To make use of LB ultra thin film in engineering applications, it is important to investigate how uniformly Langmuir film is deposited on a substrate. In this paper, to confirm the uniformity of film deposition, the relation between the monolayer numbers deposited and its ratio is investigated by deposition of the Y type and Hetero type LB film. If films are deposited ideally, the deposition ratio will become 1.0. From the experimental results, it can be suggested that the deposition of LB film is done well, as we obtained an approximate value 1.0 by the calculation of deposition ratio of L film area and LB film deposition area.

• Journal of Acupuncture Research
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• 제20권4호
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• pp.114-133
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• 2003

Objective : The meridian theory in oriental medicine explains that Sp9(Yinlingquan) has been considered very important for gynecological disorders, spleen and stomach disorders, and water metabolic disorders. Functional MRI is the best method of showing the evidences of the effect of the Electro-acupuncture treatment through scientific methods. On this supposition, Electro-acupuncture stimulation on Sp9(Yinlingquan) was carried out on six healthy volunteers, using the gradient echo sequence with the 3.0T whole-body MRI system(ISOL). Methods : Electro-acupuncture stimulation on Sp9(Yinlingquan), the experiment was carried out on six healthy volunteers, using the gradient echo sequence with the 3.0T whole-body MRI system(ISOL). After the needle insertion on right Sp9(Yinlingquan), 2Hz of electric stimulation was given for 30 seconds, repeated five times, with 30 seconds' intervals. The Image analysis including motion correction, talairach transformation, and smoothing was done using SPM99. Results : The electro-acupuncture stimulation on Sp9(Yinlingquan) activates Brodmann Area 13, 19, 22, 39, 40, 47 which may be the central pathways of the electro-acupuncture stimulation on Sp9(Yinlingquan). We also hypothesize that those brain areas may be directly or indirectly related with the mechanism of the effect of electro-acupuncture stimulation on Sp9(Yinlingquan).

• Journal of Forest and Environmental Science
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• 제35권4호
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• pp.268-271
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• 2019

Mushroom survey and collection were conducted in the Phousabous National Protected Area (PNPA), which is located at the Northeastern area 230km from the capital city of Lao-PDR, Vientiane, from April 2017 to September 2018. During this periods, mushroom specimens were collected from 8 different locations, and then they were identified and classified into 284 species, 142 genera, 56 families, 20 orders and 7 classes by morphological and molecular analyses. The mushrooms belongs to Ascomycota were classified into 10 species, 5 genera, 5 families, 4 orders and 3 classes, while those belongs to Basidiomycota were classified into 274 species, 137 genera, 51 families, 16 orders, and 4 classes, respectively. Among these mushrooms, the most species-rich families are Boletaceae (16.06%), Polyporaceae (10.12%), Russulaceae (9.94%), Amanitaceae (7.68%), Agaricaceae (4.54%), Marasmiaceae (4.36%), Cortinariaceae (3.66%), Entolomataceae (3.66%), Mycenaceae (2.79%), Xylariaceae (2.44%), Physalacriaceae (2.09%), Omphalotaceae (2.09%), Hydnangitaceae (2.09%), Lyophyllaceae (1.92%), Tricholomataceae (1.75%) and comprised 75.19% of the total specimens identified.

• 한국전자통신학회논문지
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• 제10권8호
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• pp.861-866
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• 2015

본 논문은 원격탐사 기법을 활용하여 제주도 주변 해역에서 발생하는 해저 용천수 분포 지역을 탐지하는 것이다. 연구지역인 김녕항을 대상으로 열화상카메라를 탑재한 무인비행선을 이용하여 해수면 온도 분포를 파악한 후, 해저 용천수 발생 온도 분포 범위와 비교하여 용천수 발생 위치를 탐지하였다. 일반적으로 해저 용천수의 온도 범위는 지하수 온도와 비슷하여 약 $15{\sim}17^{\circ}C$ 사이에 분포하고 있다. 열화상카메라로 감지된 김녕항의 해수면 온도 분포를 파악한 결과 연구 대상지역의 남서쪽 지역이 해저 용천수 발생 지역으로 탐지하였다.

• Ecology and Resilient Infrastructure
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• 제1권1호
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• pp.1-7
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• 2014

본 연구에서는 파랑과 흐름이 공존하고 있는 해안지역에 이용이 가능한 물에 용해된 물질의 정확한 이동을 예측하기 위한 수심적분형 수치모의 기법을 제시한다. 대상 영역에 일반적으로 발생하는 파랑의 전파와 변형 과정 및 쇄파와 흐름의 발달 과정에 대한 모의가 가능한 boussinesq equation 흐름모형과 동일한 과정을 거쳐 유도된 수심적분형 물질수송모형을 지배방정식으로 이용한다. 지배방정식은 approximate riemann solver를 이용하는 유한체적법을 이용하여 해석한다. 제시된 수치모형을 이용하여 해일발생에 의한 흐름양상을 계측한 실험을 재현하였으며, 해당 수역에 가상의 물질의 이송과 확산에 대한 수치모의를 수행하고 그 결과를 분석하였다.

• Journal of Forest and Environmental Science
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• 제34권6호
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• pp.457-460
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• 2018

Mushroom survey was conducted in the Phou Khao Khuoay National Protected Area (PKKNPA) located at east direction 65km from Vientiane, the capital city of Lao-PDR from September 2015 to November 2016. During this periods, mushroom specimens were collected from 10 different survey sites, and then were identified and classified into 149 species, 113 genera, and 55 families by morphological and molecular analyses. The mushrooms belongs to Ascomycota were classified into 13 species, 7 genera, 5 families, and 5 orders, while those belongs to Basidiomycota were classified into 136 species, 113 genera, 55 families, and 18 orders, respectively. Among these mushrooms, the most species-rich families were Polyporaceae (18.1%), Marasmiaceae (11.0%), Ganodermataceae (8.6%), Xylariaceae (5.8%), Russulaceae (5.4%), Agaricaceae (4.7%), Boletaceae (4.7%), Hymenochaetaceae (3.9%), and Amanitaceae (3.6%), and comprised 65.8% of the total specimens identified.

• 반도체디스플레이기술학회지
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• 제20권3호
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• pp.71-76
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• 2021

Digital decimation filters are used in various digital signal processing systems using ADCs, including digital communication systems and sensor network systems. When the sampling rate of digital data is reduced, aliasing occurs. So, an anti-aliasing filter is necessary to suppress aliasing before down-sampling the data. Since the anti-aliasing filter has to have a sharp transition band between the passband and the stopband, the order of the filter is very high. However, as the order of the filter increases, the complexity and area of the filter increase, and more power is consumed. Therefore, in this paper, we propose two types of decimation filters, focusing on reducing the area of the hardware. In both cases, the complexity of the circuit is reduced by applying the required down-sampling rate in two times instead of at once. In addition, CIC decimation filters without a multiplier are used as the decimation filter of the first stage. The second stage is implemented using a CIC filter and a down sampler with an anti-aliasing filter, respectively. It is designed with Verilog-HDL and its function and implementation are validated using ModelSim and Quartus, respectively.