• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2002년도 하계학술대회 논문집 D
• /
• pp.2391-2398
• /
• 2002

• 한국막학회:학술대회논문집
• /
• 한국막학회 1997년도 심포지움시리즈 Jan-97 수처리용 분리막 기술 및 응용
• /
• pp.111-130
• /
• 1997

The lack of water resources is becoming worse due to water pollution with accelerated industrialzation and regional unbalanced distribution of water resources. In recent, the production water quality is decreasing because of the increased organic matters and soluble solids in the water sources for power plants. The purpose of this paper discribes the ststus and prospect of membrane application in electric power industry. So this study lies in developing a process which can produce high purity water by appluing RO(Reserve Osmosis) ahead of the IX(Ion Exchange) tower and evaluating the product water quality and the cost effectiveness. The capital and operating cost for the treatment of brackish water, sea water by RO were presented as a reference for the review on securing water source for the new plant site.

• 한국작물학회:학술대회논문집
• /
• 한국작물학회 2022년도 추계학술대회
• /
• pp.14-14
• /
• 2022

Greenhouse gas emissions are one of the critical factors that drive change in rice cropping systems. Within this changing system, less water irrigation and chemical fertilizer are seriously considered, as well combining precision farming technologies with irrigation control. Water and phosphorus (P) fertilizer are two of the most critical inputs in rice cultivation. Due to the lack of water availability in the system, P fertilizer is not available, especially in acidic soil conditions. Moreover, the various types of abiotic stresses, such as drought, high temperature, salinity, submergence, and limited fertilizer result in significant yield loss in the system. Even in the late stage of growth, the waves caused by diseases and insects make the field more unfruitful. Therefore, agronomists and breeders need to identify the secondary phenotypes to estimate the yield loss of when stress appears. The prediction will be clearer if we have a set of markers tagging the causal variation and the associated precise phenotype indices. Although there have been various studies for abiotic stress tolerance, we still lack functional molecular markers and phenotype indices. This is due to the underlying challenges caused by environmental factors in highly unpredictable regional and yearly environmental conditions in the field system. Pupl (phosphorus uptake 1) is still known as the first QTL associated with phosphorus uptake and have been validated in different field crops. Interestingly, some pyramiding lines of Pupl and other QTLs for other stress tolerances showed preferable phenotypes in the yield. Precise physiological studies with the help of genomics are on-going and some results will be discussed.

• 대한안전경영과학회:학술대회논문집
• /
• 대한안전경영과학회 2011년도 추계학술대회
• /
• pp.593-618
• /
• 2011

Development of the economy and the growing income of people interested in the leisure and health has been focused. Past the town common wells and groundwater around the water, but health is a priority these days to solve the drinking water directly from tap water, but most people work from home, through the water purifier has been resolved. Depending on seasonal changes and personal taste of coffee, if you can enjoy a snack and water purifier is a restaurant, lounge, public areas and focusing on the rapid spread of the fire, water purifier as compared to the total number of fires increased by 0.03% per year trend on, but the washrooms fire and fire-related research data and case studies with analysis of the exact cause lack of proper preventive measures are insufficient reality. In this study, focusing on electrical energy using a water cooler to understand the structure and principles of fire, the fire revealed the mechanism is vulnerable to the consideration of factors, the exact cause of the fire investigation and the Assistant, manufacturing defects, and to contribute to fire prevention review should.

• 한국환경과학회지
• /
• 제21권10호
• /
• pp.1245-1253
• /
• 2012

In this study, how branches of Kumho River affect to the water quality on Kumho River was investigated. Water samples from six sampling points at Kumho River and three at each branch were taken from Dec. 2009 to Dec. 2011. As results, Namcheon affected BOD and T-P concentrations on Kumho River while Sincheon did only T-P concentrations. However, the water quality of Kumho River was improved because of Sincheon in terms of BOD and COD concentrations. This was the results from management of Sincheon wastewater treatment facility and Jisan wastewater treatment facility which might be the best example for managing wastewater treatment facilities. Dalsecheon would not affect the water quality of Kumho River although it had bad conditions of water quality because of lack of its water quantity comparing to Kumho River's.

• 대한한의학원전학회지
• /
• 제20권3호
• /
• pp.49-56
• /
• 2007

The "Somun Jogyongron(素問 調經論)" describes excess and deficiency syndromes. The study suggests that excess syndrome(實證) is caused by vigorous pathogenic fire(火邪)(the spirit(神)), pathogenic dryness(燥邪)(Gi(氣)), pathogenic wind(風邪)(blood(血)), pathogenic dampness(濕邪)(physique(形)) or pathogenic coldness(寒邪)(will(志)). When pathogenic fire is dominant within the body, Gi and blood becomes excessive and come out of the body, but the body cannot take them back, leading to the symptom in which the patient cannot stop laughing. When pathogenic dryness prevails, the lung(肺) cannot function properly. This means that the convergence(收斂) function of the clearing the lung and descending Gi(肅降) is deteriorated, and the patient shows symptoms of dyspnea and cough. Strong pathogenic wind increases the ascencling Gi in the liver(肝氣) and fuel angry emotion when the patient becomes upset. When pathogenic dampness is dominant, spleen(脾) function drops due to lumping effects, and the patient will experience abdominal distention(腹脹), which will disturb urination and defecation. When pathogenic coldness prevails, abdominal distention occurs due to condensating effects, and Yang Gj(陽氣) in the kidney(腎) is disturbed, leading to digestion disorders and eventually water-grain dysentery. Deficiency syndrome is caused by the lack of essential Gi(精氣) in the five viscera(五藏). Deficiency of sprit means the lack of Gi in the heart(心氣), so the patient becomes vulnerable to sadness. Deficiency of Gi means the lack of Gi in the lung(肺氣), so the patient may have breathing disorders. Deficiency of blood means the lack of Gi in the Liver(肝氣), so the patient can be easily scared. Deficiency of physique means the lack of Gi in the spleen(脾氣), making it difficult to use arms and legs. Deficiency of will means the lack of Gi in the kidney(腎氣), so Gowl syndrome(厥證) can ensue.

• 문화기술의 융합
• /
• 제9권4호
• /
• pp.291-301
• /
• 2023

본 연구는 지속가능발전교육 지향 생태미술활동에 관한 유아교사 인식에 대하여 알아보고자 하였다. 연구결과는 다음과 같다. 첫째, 유아교사는 생태미술활동의 교육적 의의에 대해 자연매체의 시각예술, 공동체적 가치추구, 사회구성원의 참여와 소통의 순으로, 실천하는데 장애요인으로는 교육환경의 어려움, 생태미술 수업자료 및 구체적 예시부족, 교사의 생태미술에 대한 이해부족의 순으로, 생태미술활동을 통해 함양할 수 있는 누리과정 예술경험영역의 핵심역량으로 자연친화적 소통능력, 생태친화적 감수성, 창의융합능력의 순으로 나타났으며, 생태미술활동을 실시하는데 예술경험영역의 자료가 충분하지 않다고 보는 것으로 밝혀졌다. 둘째, 생태미술활동과 지속가능발전교육에 대해 거의 모든 교사가 둘 간에 연관성이 있으며, 실천에 있어서 어려운 점으로 지속가능발전에 관한 인식부족, 교재교구 및 자료의 부족, 교육정책과 지원의 부족, 연수프로그램의 미흡 등의 순으로, 이러한 교육실행을 위한 지원은 교재교구 및 자료의 확충, 교육정책과 지원 확대, 지속가능발전교육에 대한 인식 확대, 연수프로그램 확대 등의 순으로 필요하다고 하였다. 또한, 생태미술활동에서 실천할 수 있는 지속가능발전교육 내용에서 교사들은 '기후변화 대응', '깨끗한 에너지', '물과 위생', '양질의 교육', '건강과 웰빙'과 '해양생태계'의 순으로 높게 인식하고 있으며, 생태미술활동 프로그램이 개발된다면 활용할 것으로 응답한 비율이 높아, ESD 지향 생태미술활동 프로그램 개발이 시급할 것으로 사료된다.

• Water Engineering Research
• /
• 제1권2호
• /
• pp.129-136
• /
• 2000

Predicting water levels is a difficult task because a lot of uncertainties are included. Therefore the neural network which is appropriate to such a problem, is introduced. One day ahead forecasting of river stage in the Bocheong River is carried out by using the neural network model. Historical water levels at Snagye gauging point which is located at the downstream of the Bocheong River and average rainfall of the Bocheong River basin are selected as training data sets. With these data sets, the training process has been done by using back propagation algorithm. Then waters levels in 1997 and 1998 are predicted with the trained algorithm. To improve the accuracy, a filtering method is introduced as predicting scheme. It is shown that predicted results are in a good agreement with observed water levels and that a filtering method can overcome the lack of training patterns.

• 한국수자원학회:학술대회논문집
• /
• 한국수자원학회 2017년도 학술발표회
• /
• pp.218-218
• /
• 2017

Urbanization increases impervious area and decreases the water quantity infiltrating into soil layers. This leads to lack of ground water, it could be possibly problematic for agricultural water for crop growth in lower basins, reducing not only ground water but also streamflow quantities. One such approach to minimize the impact of urbanization is to apply low impact developments (LIDs). LIDs are to decrease the percentage of impervious area so that infiltration rate is increased, there is a need to simulate the LIDs prior to the construction. LIDs in Storm Water Management Model (SWMM) are limited to be seven types, however it is often required to simulate LIDs more than seven types. Therefore an approach to apply eleven LIDs is provided in the study, updating the model parameters. A scenario containing eleven LIDs was given by the environmental decision makers, the effect of LIDs were simulated with the expected annual costs considering establishment and maintenance costs.

• 한국농공학회논문집
• /
• 제55권4호
• /
• pp.45-53
• /
• 2013

Efficient water operation and management of an irrigation system plays an important element in the sustainability of irrigated agriculture. An agricultural water is delivered in many open canals of irrigation delivery system by reservoirs. The poor water distribution and management in an irrigation system is a major factor leading to low water efficiency. It is necessary to compare the estimated irrigation demands with the actual water supplies for decision making to maintain the water supply according to demand strategy. Smarter water management, new technologies and improvement of water management system, is essential to solve the problem of water efficiency and availability. In this paper, the irrigation efficiencies according to water delivery performance indicator were measured with automatic water gauge at irrigation canals, and calculated from spatial and temporal distribution of water supply for the lack of planning in water delivery. The analysis of results are obtain an insight into possible improvement methods to develop canal water management policies that enable irrigation planners to optimally manage scarce available water resources.