고랭지 농업 용수확보를 위한 소규모 빗물 이용시설 적용방안

전계원(Kye Won Jun)(全桂元),장창덕(Chang Deok Jang)(張昌德),정승권(Seung Kwon Jung)(鄭承權),전병희(Byong Hee Jun)(田炳熙) 위기관리 이론과 실천 2013 Crisisonomy Vol.9 No.8

최근 기후변화로 지난 2009년과 2012년에 강원도 태백시에서는 가뭄으로 인하여 엄청난 피해를 경험한 적이 있다. 또한 가뭄과 장마의 예측은 점점 더 어려워져 가는 실정이다. 특히 태백시의 87일간의 가뭄과 제한급수에 따른 피해액은 일상생활 134억원, 산업부문 338억원, 공공부문 47억원, 정신적ㆍ사회적 피해 1, 430억원 등 총 1, 949억원에 달하는 것으로 분석되었다. 태백시에 또 다른 큰 문제점은 가뭄으로 인한 고랭지 농업 피해로 인한 손실이다. 고랭지 배추를 생산하는 태백시는 우리나라 유일의 고산지역의 도시로서, 고랭지 농업이 특히 발달한 지역이다. 특히 태백 고랭지 배추는 태백시 농산품의 95.9%, 총 경지면적의 86.6%를 차지하고 있으므로, 배추의 생산성이 태백시 농산품 생산성을 대변한다고 할 수 있다. 본 연구에서는 태백시의 공공기관과 고랭지 농업 지역을 직접 방문하여 소규모 빗물 이용 시설에 대한 현황조사 및 시설의 상태를 점검하고 가뭄발생시 고랭지 농업지역의 피해를 최소화 할 수 있도록 소규모 빗물 이용 시설의 적용 방안 및 효과를 분석하였다. Recently, drought and rainy season are getting more serious. It is getting hard to forecast about drought because drought frequency is getting shorter than before. In 2009(winter) and 2012(summer), Taebaek-si was suffered from enormous damage due to the drought. Particularly, in 2009, cost of damage due to drought and restriction on water supply for 87days were estimated daily life sector 134 billion won, industry sector 338 billion won, the public sector 47 billion won, mental and social damage 1, 430 billion won. The other big issue of Taebaek is decrease in products of Highland Agricultural caused by the drought. Highland chinese cabbage which is the most important agricultural product in Taebaek-si account for 95.9% of all agricultural production of Taebaek-si and account for 86.6% of all gross area. For this reason, chinese cabbage of Taebaek-si is tropical agricultural product and is in charge of supply cabbage definitely. It is considered that if small scale rainwater harvesting system would be installed in highland agriculture area, it could reduce damage of drought at low cost and damage of cabbage would be decrease by system. For this study, We have researched regarding current status of Small Scale Rainwater Harvesting System of Highland Agriculture area in Taebaek-si and have compared with the amount of damage and installation cost in case of drought for the beneficial effects of Small Scale Rainwater Harvesting System, flexible supply of water and damage minimization of agricultural products.

Pathophysiology of enteropathogenic Escherichia coli during a host infection

Jun Bong Lee,Se Kye Kim,Jang Won Yoon 대한수의학회 2022 Journal of Veterinary Science Vol.23 No.2

Enteropathogenic Escherichia coli (EPEC) is a major cause of infantile diarrhea in developing countries. However, sporadic outbreaks caused by this microorganism in developed countries are frequently reported recently. As an important zoonotic pathogen, EPEC is being monitored annually in several countries. Hallmark of EPEC infection is formation of attaching and effacing (A/E) lesions on the small intestine. To establish A/E lesions during a gastrointestinal tract (GIT) infeciton, EPEC must thrive in diverse GIT environments. A variety of stress responses by EPEC have been reported. These responses play significant roles in helping E. coli pass through GIT environments and establishing E. coli infection. Stringent response is one of those responses. It is mediated by guanosine tetraphosphate. Interestingly, previous studies have demonstrated that stringent response is a universal virulence regulatory mechanism present in many bacterial pathogens including EPEC. However, biological signficance of a bacterial stringent response in both EPEC and its interaction with the host during a GIT infection is unclear. It needs to be elucidated to broaden our insight to EPEC pathogenesis. In this review, diverse responses, including stringent response, of EPEC during a GIT infection are discussed to provide a new insight into EPEC pathophysiology in the GIT.

Congenital eruptive vellus hair cysts

( Won Jong Oh ),( Eun Jung Ko ),( Kui Young Park ),( Beom Joon Kim ),( Seong Jun Seo ),( Kye Yong Song ) 대한피부과학회 2015 대한피부과학회 학술발표대회집 Vol.67 No.1

Eruptive vellus hair cysts (EVHC) represent developmental abnormality of vellus hair follicle. They are usually localized on the chest and proximal extremities, but they may be present at unusual sites, including the face, groin and buttocks. The average at onset was 16.7 years, and in nearly 85% patients EVHC occurred by the age of 25 years. 7-year-old girl presented with multiple skin colored, comedone-like papules on the forehead since birth. We performed skin biopsy on the forehead, and histopathologic finding showed cystic dilatation containing keratin plug and vellus hair in dermis. We report an unusual case of congenital EVHC which located on the forehead.

Inhibition of in vivo staphylococcal infection by a bactericidal peptide-peptide nucleic acid targeting Staphylococcus aureus cytidine monophosphate kinase

( Jun Bong Lee ),( Hyung Tae Lee ),( Se Kye Kim ),( Jang Won Yoon ) 대한인수공통전염병학회 2019 창립총회 및 학술대회 초록집 Vol.2019 No.1

Introduction: Here, we report a novel bactericidal peptide nucleic acid (PNA) that can induce the antisense effect on Staphylococcus aureus cytidine monophosphate kinase Cmk, a putative essential component for bacterial species. Methods: Based on the genome sequence of S. aureus N315, a set of PNA conjugates with a bacterial penetration peptide, (KFF)₃K, were synthesized to target the seven potentially essential genes (cmk, deoD, ligA, smpB, glmU, pyrH, and ftsA) and further evaluated for their antibacterial properties in vitro as well as in vivo. Results: The results demonstrated that two peptide-conjugated PNAs (P-PNAs) ASP-cmk1 and ASP-deoD1, targeting either the cmk or the deoD gene, had the strongest inhibitory effects on the growth of S. aureus ATCC 29740 (a bovine mastitic milk isolate) in a dose-dependent manner. In vivo application of ASP-cmk1 resulted in a significant reduction of bacterial loads in mice intraperitoneally infected with a sublethal dose of S. aureus. Moreover, ASP-cmk1 greatly increased the survival rate of the breast-fed infant mice after intramammary infection of the lactating CD-1 mice. Conclusion: Taken together, our characterization of ASP-cmk1 demonstrated its bactericidal activity against S. aureus as well as its effectiveness in vivo.

수치모형을 이용한 사방댐 설치위치에 따른 토석류 저감량 분석

Won Jun Tak,Kye W on Jun,Byung Sik Kim,Yong Ho Yoon 위기관리 이론과 실천 2017 Crisisonomy Vol.13 No.4

최근 국내에서는 이상기온으로 인한 국지성 폭우와 여름철 태풍 및 집중호우로 인한 다양한 재해가 발생되고 있으며 재해유형중에서도 산지재해에 속하는 토석류가 급증하고 있다. 토석류는 산지에서 일어나는 것으로 한정하기 쉬우나, 도심과 인접한 산지지역에서 토석류가 발생하여 도심지 및 고속 도로, 교량 등에 큰 피해를 불러오기도 한다. 이처럼 토석류는 산지와 도심지 모두 발생 위험성이 높고 피해범위 또한 예측이 쉽지 않아 토석류에 대해 여러분야로 연구가 이루어지고 있다. 이 중에 서도 토석류를 제어하는 가장 효과적인 구조물로 토석류 유출방지시설에 대한 연구가 많이 이루어 지고 있지만 토석류가 발생하거나 또는 토석류 위험지역의 유역특성이나 현장여건을 적용한 토석류 유출저감시설의 위치에 대한 연구는 미비한 상태이다. 따라서, 본 연구에서는 토석류 수치모형을 이용하여 토석류 발생시 이동 메커니즘과 토석류 유출방지시설의 위치별 저감효과를 분석하였다. Recently, South Korea has been facing a range of disasters caused by localized heavy rainfalls, tropical typhoon, and torrential downpours. In particular, debris flows disasters usually occurring in the mountains have rapidly increased during the past few years. However, debris flows are also observed in mountainous areas near cities, bringing significant damages to city centers, highways, bridges, etc. Thereby, debris flows can lead to high risk in both mountainous areas and city centers. In addition, difficulties in debris-flow forecasting increase the need for numerical studies on debris flows. Although various researches have widely been conducted on run-off control facilities for debris flows, it is necessary to focus more on research that would identify an ideal location for debris flow runoff reduction facilities based on basin characteristics or site conditions for the debris flow areas. In this regard, this research used a debris flow numerical model to identify the transfer mechanism of debris flows and analyzed the debris flow reduction effect of runoff control facilities by the installation location.

Timing for a laparoscopic myomectomy during the menstrual cycle

( Jun Hyeok Kang ),( Woo Young Kim ),( Kyo Won Lee ),( Kye Hyun Kim ),( Tae Jong Song ) 대한산부인과학회 2015 대한산부인과학회 학술대회 Vol.101 No.-

Public perception of risk-reducing salpingectomy for preventing ovarian cancer

( Jun Hyeok Kang ),( Se Hyun Nam ),( Taejong Song ),( Woo Young Kim ),( Kyo Won Lee ),( Kye Hyun Kim ) 대한산부인과학회 2015 Obstetrics & Gynecology Science Vol.58 No.4

Objective: The fallopian tube is considered as the site of origin of serous ovarian cancer, and risk-reducing salpingectomy (RRS) has been proposed as a new and safe strategy for preventing ovarian cancer. However, little is known about the public perception of RRS. Methods: We performed a questionnaire survey of 100 healthy female volunteers in November 2014. Questionnaire for this survey included questions on demographics, medical history, knowledge of and belief about RRS, and barrier to its application. Results: Among 100 respondents, 71% did not realize the seriousness of ovarian cancer, 79% were unaware of the fact that salpinx was the origin of ovarian cancer, and 87% stated that they had never heard of RRS as a preventive method for ovarian cancer. Also, 98% of respondents replied that they had the right to be informed about RRS and the choice given. The respondents’ fears about RRS included increased risk of surgical complications (68%), no benefit (8%), and increased surgical costs (3%). Conclusion: Most general women were unaware of RRS as a method for preventing ovarian cancer in women at average risk. Therefore, physicians should discuss RRS with patients and consider this procedure at the time of abdominal or pelvic surgery.

Comparative Analysis of Risk Factors on Korea National Park Trails - Focusing on Bukhansan and Seoraksan National Park -

Jun Hyo Park,Ju Ung Yun,Jong Sun Kim,Kye Won Jun 위기관리 이론과 실천 2022 Crisisonomy Vol.18 No.3

국립공원은 대부분 산지에 위치하는 지리적 특성상 자연재해 위험요인들이 산재되어 있고, 각종 안전사고로 인한 인명 및 재산피해가 지속적으로 발생되고 있다. 본 연구는 선행연구를 통해 수집된 탐방로 안전성 평가 자료를 기반으로 유사한 특성을 보이는 북한산국립공원과 설악산국립공원의 위험요인 분포 및 특성을 비교 분석하여 효율적인 탐방로 안전관리 방안을 제시하고자 하였다. 북한 산국립공원은 추락, 미끄러짐 등 안전사고로 인한 위험요인이 매우 높게 분포하는 반면, 설악산국립 공원은 안전사고보다 낙석 위험요인의 분포가 높은 것으로 나타났다. 이러한 결과는 기존의 탐방로 안전관리의 획일적 정책방향을 개선하고 유사환경의 국립공원이라도 지질, 지형, 탐방객 특성 등 환경적 요인에 따라 세분화된 기준 수립의 필요성을 도출하였다. 본 연구는 향후 탐방로 안전관리 기술 고도화와 전문성 향상, 체계적인 안전관리로 인한 인명 및 재산피해 예방에 기여할 것으로 기대된다. National parks are geographically located in mountain areas, and natural disaster of risk factors are scattered, and damage to human life and property is continuously occurring due to various safety accidents. This study tried to suggest an efficient trail safety management plan by comparing and analyzing the distribution and characteristics of risk factors in Bukhansan and Seoraksan National Park, which show similar characteristics, based on the trail safety evaluation data collected from the previous studies. In Bukhansan National Park, risk factors due to safety accidents such as fall and slipping are very high, whereas in Seoraksan National Park, the distribution of risk factors for falling rocks is higher than safety accidents. These results improved the existing standardized policy direction for trail safety management and derived the necessity of establishing subdivided standards according to environmental factors such as geology, topography, and visitor characteristics, even in national parks with similar environments. This study is expected to contribute to the improvement of trail safety management technology, enhancement of expertise, and prevention of damage to human life and property due to systematic safety management.

Novel method of laparoendoscopic single-site and natural orifice specimen extraction for live donor nephrectomy

Won Jun Jeong,Byung Jo Choi,Jeong Kye Hwang,Seung Mo Yuk,Min Jong Song,Sang Chul Lee 대한외과학회 2016 Annals of Surgical Treatment and Research(ASRT) Vol.90 No.2

Laparoscopic live donor nephrectomy (DN) has been established as a useful alternative to the traditional open methods of procuring kidneys. To maximize the advantages of the laparoendoscopic single-site (LESS) method, we applied natural orifice specimen extraction to LESS-DN. A 46-year-old woman with no previous abdominal surgery history volunteered to donate her left kidney to her husband and underwent single-port laparoscopic DN with transvaginal extraction. The procedure was completed without intraoperative complications. The kidney functioned well immediately after transplantation, and the donor and recipient were respectively discharged 2 days and 2 weeks postoperatively. Single-port laparoscopic DN and transvaginal graft extraction is feasible and safe.

An Experimental Study on Sediment Discharge in River Channel for the Reduction of Sediment Disaster

Kye Won Jun,Mu Pyung Baek,Jong Ho Choi 위기관리 이론과 실천 2017 Crisisonomy Vol.13 No.9

최근 기후변화의 영향으로 집중호우 및 토사재해 발생빈도가 증가하고 있다. 이러한 토사재해로 인한 하도 내 피해예방 및 종합적인 토사 관리를 위해서는 정량적이고 시계열적인 토사이동량 파악 이 필수적이다. 그러나 우리나라의 재래식관측기를 이용한 직접적인 측정방법은 실제 측정이 용이 하지 않고 많은 비용과 인력, 시간이 소요된다. 특히 연속적인 측정이 거의 불가능한 상태에 있어 토사 이송에 관한 수문학적 요인과 메커니즘 관계를 정량적으로 분석한 연구는 부족한 실정에 있다. 따라서 본 연구에서는 하도 내 토사이동량 측정의 어려움을 개선하기 위해 실내수로실험에 하이드 로폰을 활용하였고 하이드로폰의 인지능력을 파악하기 위해 충돌음향 계측 및 분석을 수행하였다. 연구결과 하이드로폰이 인지할 수 있는 개별입자별 main충돌시의 최소 임계치 기준은 공급유량과 토사입자의 크기가 커질수록 증가하는 것으로 나타났다. Due to recent climate change, the frequency of heavy rainfalls and sediment disasters is increasing. In order to prevent damages caused by sediment disaster and implement a comprehensive sediment control, a time-series analysis of sediment discharge data is essential. However, in South Korea, it is difficult to measure them directly as they use conventional meters as measurement, which prevents research from presenting a quantitative relationship between hydrological factors and mechanisms with regard to sediment transport. In this regard, the study attempted to overcome difficulties related to the measurement of soil particle transport in river channel. It used acoustic signals to recognize the transport of sediment particles and established an indoor waterway experiment equipment with a hydrophone. As a result, it is found that the minimum threshold value for the main collision of individual particles perceived by hydrophone increased as the supply flow rate and the size of sediment particles increased.