• 한국수자원학회논문집
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• 제54권11호
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• pp.863-873
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• 2021

다공성 매질에서 오염물 이동에 지배적인 기작인 역학적 분산은 공극 내 유속 차이에 의해서 발생한다. 종분산계수와 종분산지수는 이송확산 모형의 수리분산 매개변수이며, 실험을 통하여 얻어야만 한다. 수리평균반경은 공극 내 물의 흐름 양의 크기와 강도를 표현할 수 있으며, 매질의 물리적 특성인자를 이용하여 계산할 수 있다. 본 연구는 순간주입 추적자실험을 통하여 자갈 다공성매질에서 수리평균반경을 이용하여 종분산지수를 구할 수 있는 거듭제곱형의 경험식을 도출하였다. 경험식은 스케일상수 계산식이 포함되어 있어 이동거리에 따른 종분산지수의 산정이 가능하며, 소규모 유량의 균질한 자갈로 구성된 수로에 적용이 가능할 것으로 기대된다.

• 한국방재안전학회논문집
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• 제15권3호
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• pp.23-29
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• 2022

최근 급증하는 이상기후의 영향으로 인하여 국지성 호우의 발생 빈도가 증가하고 있다. 이로 인하여 안전한 수자원 관리의 어려움이 증가하고 있으며, 인적 및 물적 피해가 늘어나고 있다. 국지성 호우로 인한 피해를 저감하기 위하여 다양한 대책방안을 수립하고 있으나 소규모 산지유역은 기본계획 수립 등의 부재로 인하여 어려움을 겪고 있다. 본 연구에서는 우리나라 국립공원 중 지리산 국립공원 중 유평유역을 대상으로 강우-유출모형을 활용한 침수 위험도 평가를 수행하였다. 지리산 유평유역은 재현빈도 50년 이상의 강우 발생 시, 홍수가 발생하는 것으로 모의 되었으며, 수공 구조물, 안전 시설물 및 탐방로에 대하여 위험성이 높게 나타나는 것을 확인하였다.

• 한국융합학회논문지
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• 제13권5호
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• pp.187-193
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• 2022

우리 사회에서 가정폭력은 학대 행위자와 학대 피해자가 한 공간에 공존하며, 학대가 재생산되는 가정 내에서 문제를 해결하지 못한 채 방치되고 있다. 특히 전통적인 대가족 중심적인 친족의 사회관계가 소원한 오늘날, 핵가족이라는 소외되고 고립된 환경 속에서 발생하는 가정폭력은 인권을 침해하고 짓밟는 범죄로 볼 수 있다. 가정폭력의 해결책도 가족적 지원망에만 해결하고 의존하기에는 가정폭력 피해자들이 겪어야 할 신체적, 정서적, 심리적 고통과 상처가 너무 깊다. 가정폭력 피해자들을 위해 이웃이나 지역사회에서 장기적이고 세심한 도움을 줄 수 있는 사례관리 서비스가 필요하다. 이를 위해 가정폭력은 예방과 치료가 함께 고려되어야 할것이며 지역사회의 관심과 역할도 뒤따라야 한다.

• 문화기술의 융합
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• 제8권5호
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• pp.705-712
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• 2022

지난 3년간의 펜데믹은 우리 생활에 급격한 변화를 가져왔고, 그 변화가 이제는 자연스러운 일상이 되고 있다. 화상회의, 원격수업, 재택근무, 온라인 스트리밍 서비스 등의 온라인을 기반으로 하는 일상생활 및 경제 활동은 코로나 이후의 일상이 되었다. 그리고 통신 및 그래픽 기술의 급격한 발전의 결과물이 바로 메타버스이다. 이러한 '메타버스 열풍'에 편승해 정부와 지자체들이 경쟁적으로 '메타버스 내 공공 공간'을 생산해내고 있다. 이에 본 연구는 지자체의 메타버스 공간의 올바른 활용방안을 위해 공공디자인의 관점에서의 가능성을 연구하는 것을 목적으로 한다. 이를 위해 본 연구에서는 '지자체', '공공디자인', '메타버스'에 대한 빅데이터 분석을 진행하였다. 본 연구의 결과, 우리는 지자체의 신뢰성을 회복하고 부정적 인식을 극복하기 위한 수단으로 높은 화제성과 가능성을 지닌 메타버스를 지자체의 홍보나 토론의 공간으로 적극적으로 활용하여야 한다. 그리고 지자체 메타버스의 대중적 신뢰도를 높이기 위해 공공디자인의 적극적인 반영이 필요하다.

• 대한통합의학회지
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• 제11권1호
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• pp.99-111
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• 2023

Purpose : Although quantitative research on alcohol consumption among nursing students is important, qualitative research is needed to determine the subjective views of individual students, such as their feelings and thoughts, and ensure the implementation of a targeted alcohol intervention program. Q-methodology is a systematic approach that examines the subjective perspectives of individuals, including their views, beliefs, and attitudes, enabling understanding of the types and characteristics according to the individual's subjectivity structure. This study examined the subjective perceptions of drinking among freshmen in nursing college using Q methodology. Methods : Q-sorting was conducted, collecting 38 P samples and 40 statements. The data were analyzed using the PC QUANL program. The principal component factor analysis method was used for Q-factor analysis. Results : The results identified four types of drinking perceptions among freshmen in nursing college. Type 1 was "safety and health pursuit," type 2 was "friendship pursuit," type 3 was "'norm-oriented," and type 4 was "sound manners." When looking at the subjective perceptions of drinking among freshmen in nursing college, there was a common opinion that drinking should not be forced and that it is an individual choice. However, the difference in views (positive and negative) of drinking shows the need for customized educational programs and interventions suitable for each type. Conclusion : Nursing freshmen should be prepared to play an important role in health care as an educational role and model in preventing damage from drinking and maintaining health promotion throughout their life by habituating proper drinking behavior during college life. In addition, it is necessary to develop a plan to increase positive awareness of drinking among nursing students through various strategic programs that can participate in sobriety prevention programs within the university.

• Nutrition Research and Practice
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• 제17권1호
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• pp.13-31
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• 2023

BACKGROUND/OBJECTIVES: Epigenetic regulation by nutrients can influence the development of specific diseases. This study sought to examine the effect of individual nutrients and nutrient families in the context of preventing chronic metabolic diseases via epigenetic regulation. The inhibition of lipid accumulation and inflammation by nutrients including proteins, lipids, vitamins, and minerals were observed, and histone acetylation by histone acetyltransferase (HAT) was measured. Correlative analyses were also performed. MATERIALS/METHODS: Nutrients were selected according to information from the Korean Ministry of Food and Drug Safety. Selected nutrient functionalities, including the attenuation of fatty acid-induced lipid accumulation and lipopolysaccharide-mediated acute inflammation were evaluated in mouse macrophage Raw264.7 and mouse hepatocyte AML-12 cells. Effects of the selected nutrients on in vitro HAT inhibition were also evaluated. RESULTS: Nitric oxide (NO) production correlated with HAT activity, which was regulated by the amino acids group, suggesting that amino acids potentially contribute to the attenuation of NO production via the inhibition of HAT activity. Unsaturated fatty acids tended to attenuate inflammation by inhibiting NO production, which may be attributable to the inhibition of in vitro HAT activity. In contrast to water-soluble vitamins, the lipid-soluble vitamins significantly decreased NO production. Water- and lipid-soluble vitamins both exhibited significant inhibitory activities against HAT. In addition, calcium and manganese significantly inhibited lipid accumulation, NO production, and HAT activity. CONCLUSIONS: Several candidate nutrients and their family members may have roles in the prevention of diseases, including hepatic steatosis and inflammation-related diseases (i.e., nonalcoholic steatohepatitis) via epigenetic regulation. Further studies are warranted to determine which specific amino acids, unsaturated fatty acids and lipid-soluble vitamins or specific minerals influence the development of steatosis and inflammatory-related diseases.

• Earthquakes and Structures
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• 제24권4호
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• pp.303-316
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• 2023

Rapid post-earthquake damage estimation of subway stations is particularly necessary to improve short-term crisis management and safety measures of urban subway systems after a destructive earthquake. The conventional Performance-Based Earthquake Engineering (PBEE) framework with constant earthquake occurrence rate is invalid to estimate the aftershock risk because of the time-varying rate of aftershocks and the uncertainty of mainshock-damaged state before the occurrence of aftershocks. This study presents a time-varying probabilistic seismic risk assessment framework for underground structures considering mainshock and aftershock hazards. A discrete non-omogeneous Markov process is adopted to quantify the time-varying nature of aftershock hazard and the uncertainties of structural damage states following mainshock. The time-varying seismic risk of a typical rectangular frame subway station is assessed under mainshock-only (MS) hazard and mainshock-aftershock (MSAS) hazard. The results show that the probabilities of exceeding same limit states over the service life under MSAS hazard are larger than the values under MS hazard. For the same probability of exceedance, the higher response demands are found when aftershocks are considered. As the severity of damage state for the station structure increases, the difference of the probability of exceedance increases when aftershocks are considered. PSDR=1.0% is used as the collapse prevention performance criteria for the subway station is reasonable for both the MS hazard and MSAS hazard. However, if the effect of aftershock hazard is neglected, it can significantly underestimate the response demands and the uncertainties of potential damage states for the subway station over the service life.

• 대한한방부인과학회지
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• 제36권2호
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• pp.36-54
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• 2023

Objectives: This study was aimed to develop a Korean Medicine (KM) clinical practice guideline (CPG) of Nausea and Vomiting of Pregnancy (NVP). Methods: We conducted a questionnaire survey targeting KM doctors belonging to the Association of Korean Medicine by e-mail. We received 1,023 responds, and analyzed the answers. Results: 1. 83.0% of respondents knew the concepts and contents of CPG, and 98.1% had practical use plan. 2. 82.1% of respondents used pattern identification diagnosis for NVP patients, and the most commonly diagnosed pattern was spleen-stomach weakness (脾胃虛弱) with 41.3%. 3. The most frequently used treatment for NVP patients was KM combined treatment (46.7%). Herbal medicine+acupuncture (46.8%) was most used among KM combined treatments, and herbal medicine (37.1%) was most used among KM single treatments. 4. Among the contents of CPG for NVP, the fields of interest were selected in the order of KM treatment, KM-Western medicine cooperative treatment, KM diagnosis, prevention and regimen management. In the 'diagnosis part', the use of the symptom evaluation scale questionnaire was 41.8%, higher than the KM pattern diagnosis (34.4%). In the 'treatment part', herbal medicine accounted for 33.8%, higher than that of acupuncture (including electro-acupuncture) at 23.7%. 5. As for the expected development effects, opinions on evidence-based, safety, clinical use, and standardization were the most common. Conclusions: We figured out KM doctors' recognition of KM clinical practice guideline, clinical diagnosis, treatment on NVP to make the contents of the CPG reflecting the clinical situation.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제29권3호
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• pp.37-44
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• 2023

Purpose: To decrease cross-infection, it's essential to analyze the spatial composition of the 'PPE doffing area'. Instead of solely relying on manpower standards, we should focus on responding to infectious diseases within the context of space planning. By doing so, we can lower the risk for healthcare workers' infection and ensure a level of safety in various environmental changes or new manpower input situations. Methods: This analysis is conducted specifically for facilities with negative pressure isolation wards. Additionally, interview surveys to obtain feedback from healthcare workers and incorporate their expertise into the design of the 'PPE doffing area' have been carried. Results: In a PPE doffing area, the standard spaces include a PPE doffing room, a shower room, and a clothing room. Depending on the facility environment or the level of infectious diseases, a Decontamination room or Anteroom can be optionally added. Healthcare workers who remove their PPE in the PPE doffing room should avoid re-entering the Negative pressure room. The shower room is often underutilized. When planning for a future PPE doffing area, an aisle space or passageway must be included even if a shower room is planned. Implications: This study examined the space used by healthcare workers rather than patients, with a focus on infection prevention through architectural planning rather than individual efforts. However, the investigation was limited to facilities that have been converted from general wards to negative pressure isolation wards, so it cannot be generalized to all infectious disease facilities.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2022년도 춘계학술대회
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• pp.306-309
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• 2022

최근 우리나라에서도 지진 발생빈도가 급격히 증가하면서 지진에 대한 관심도가 높아지고 있다. 지진발생 시 대응과 복구도 중요하지만, 관리 취약점을 사전에 찾아내어 예방 및 사전 대비 활동을 수행하는 것이 필요하다. 한국수자원공사에서는 지진으로부터 안전한 시설관리를 위해 지진가속도계측기를 운영하여 실시간 지진데이터를 수집하고 있으며, 대외기관에서 지진데이터를 활용할 수 있도록 데이터를 전송하고 있다. 운영 중인 지진감시시스템의 관리 취약점을 사전에 줄이고자 지진데이터의 수집지연시간을 최소화하고, 빅데이터를 활용한 지진데이터의 실시간 품질분석 체계·기반 구축으로 고품질의 데이터 생산이 가능하다. 이에 따라 댐 안전관리 및 고품질의 지진데이터를 확보하여 대외기관에 신속한 데이터를 제공함으로써 지진재해로부터 국민의 생명과 재산을 보호할 수 있을 것으로 기대된다.