낙동강 원수의 생물활성탄 및 오존처리공정에 따른 수질 변화 및 폴리오바이러스의 제거특성

정은영,박홍기,이유정,정종문,정미은,홍용기,장경립,Jung Eun-Young,Park Hong-Ki,Lee You-Jung,Jung Jong-moon,Jung Mi-Eun,Hong Yong-Ki,Jang Kyoung-Lib 한국생명과학회 2005 생명과학회지 Vol.15 No.5

오존처리는 음용수중의 유해한 미생물을 소독하는 처리기술로 주로 이용되고 있으며, 생물활성탄 처리기술 역시 오염물질 제거를 포함한 음용수 제조과정에 여러 가지 이점을 제공한다. 이글의 병행처리는 원수중의 여러 물질을 제거하는데 효과적인 공정으로 간주되고 있다. 본 연구에서는 낙동강 하류의 매리취수장 원수를 사용하여 생물활성탄 정수처리공정 및 오존에 의한 수질 변화와 함께 폴리오바이러스 제거 효율을 조사하였다. 수질인자들은 BAC 여과를 거치면서 $NH^{+}_{4}-N$등을 포함한 모든 항목들은 거의 제거되는 것으로 나타났다. Pilot-plant를 이용한 정수처리공정별 폴리오바이러스 제거실험에서는 전오존 접촉에 의해 $96.8\%$, 침전단계에서$99.3\%$, 여과단계에서 $99.6\%$의 바이러스가 제거되었으며, 후오존을 거친 BAC 여과수 시료에서는 세포배양법과 ICC-PCR 방법에서 바이러스가 $100\%$ 제거되어짐을 확인할 수 있었다. 오존농도에 의한 폴리오바이러스 제거실험 결과 0.4mg/1에서 5분간 접촉되었을 때는 약 $61.1\%$ 이상이, 0.8mg/1에서 10분 이상 접촉시킨 후에는 바이러스의 $100\% $가 불활성화 되어졌음을 알 수 있었다. Ozonation is a disinfection technique of harmful mi-crobes commonly used in the treatment of drinking water. And Biological Activated Carbon (BAC) treatment also provides numerous benefits for drinking water utilities, including removal of micro- pollutants, improved treatment processes. The multiful-stage ozonation and BAC play roles as effective methods for removing several materials in raw water. Water quality variation in Nak dong river and the removal efficiency of viruses by ozonation-BAC process were investigated on pilot scale. During the period of survey, most of water quality parameters including $NH_{4}^{+}-N$ were highly improved after passing through the BAC. The removal efficiency of poliovirus type III in water treatment process using pilot-plant,$ 99.6\% $ of viruses were removed by pre-ozonation, sedimentation and sand filteration process, $ 100\% $ were removed after in BAC filteration step. In the removal survey of viruses by ozonation, ap-proximately $ 61.1\% $ or polioviruses were inactivated by ozone of 0.4 mg/l within 5 min. and $ 100\% $ were inactivated by ozone of 0.8 mg/l over 10 min.

식도 폐쇄 및 기관식도루와 성대문밑협착을 동반한 신생아에서 기관 삽관후 발생한 기관 손상의 보존적치료 경험 1예

정은영,최순옥,박우현,Jung, Eun-Young,Choi, Soon-Ok,Park, Woo-Hyun 대한소아외과학회 2010 소아외과 Vol.16 No.1

Tracheal injury is a rare complication of endo-tracheal intubation. However in neonates, the rates of morbidity and mortality are high. Recommendations for treatment are based on the several reports of this injury and are individualized. Conservative management can be effective in some cases. We describe the case of a neonate who presented with subcutaneous emphysema after intubation in a neonatal intensive care unit. This patient suffered full VACTERL syndrome and had 1.7 mm diameter subglottic stenosis. Conservative management resulted in no further increase in subcutaneous emphysema and after 10 days the patient was stable.

고주파 마그네트론 스퍼터링 방법으로 증착한 PDP용 ${Mg_{1-x}}{Zn_x}$O 보호막의 전기광학적 특성연구

정은영,이상걸,이도경,이교중,손상호,Jeong, Eun-Yeong,Lee, Sang-Geol,Lee, Do-Gyeong,Lee, Gyo-Jung,Son, Sang-Ho 한국재료학회 2001 한국재료학회지 Vol.11 No.3

교류구동형 플라즈마 표시소자의 보호막으로 사용되는 MgO의 특성향상을 위하여 기존의 MgO에 양이온이 등전적으로 치환될 수 있는 ZnO를 소량 첨가하여 고주파 마그네트론 스퍼터링 방법으로 $Mg_{1-x}$Z $n_{x}$O박막을 성장시키고 박막의 전기적, 광학적 특성을 조사하였다. ZnO농도가 0.5 at%, 1at%인 $Mg_{1-x}$Z $n_{x}$O 박막을 보호막으로 갖는 PDP 테스트 판넬을 제작하고 ZnO의 첨가가 소자의 방전전압과 메모리 이득에 미치는 영향을 살펴보았다. ZnO농도가 0at%, 0.5 at%, 1at%인 $Mg_{1-x}$Z $n_{x}$O 박막의 광투과율은 ZnO 첨가에 따라 변화를 보이지 않으나 유전상수는 다소 증가하는 경향을 보였다. ZnO의 농도가 0.5 at%인 $Mg_{1-x}$Z $n_{x}$O 박막을 보호막으로 갖는 PDP 소자의 방전개시전압과 방전유지 전압이 MgO 박막을 보호막으로 갖는 소자에 비해 20V까지 낮아졌고, 결과적으로 메모리계수는 다소 증가하였다. ZnO농도가 0.5 at%, 1at%인 $Mg_{1-x}$Z $n_{x}$O 박막을 보호막으로 갖는 소자에서 ZHO의 첨가에 비례하여 방전세기 (플라즈마 밀도)가 증가하였다.도)가 증가하였다.도)가 증가하였다. M $g_{1-x}$ Z $n_{x}$O thin films with various composition x of ZnO were fabricated by a RF magnetron sputtering method, which is expected to improve the electro-optical properties of the conventional MgO protective layer for AC-PDP. Test panels with the $Mg_{1-x}$Z $n_{x}$O protective layer have been fabricated in order to investigate the effects of ZnO doping on the electrical characteristics of devices such as the discharge voltages and the memory gain. Experimental results revealed that test panels with the $Mg_{1-x}$Z $n_{x}$O(x=0.5at%) protective layer show lower firing and sustain voltages than those seen in panels with MgO protective layer by 20V. resulting in an increasement of the memory coefficient. In addition, it was found that test panels with the $Mg_{1-x}$Z $n_{x}$O protective layer show higher discharge intensity, i. e., higher plasma density, compared with panels with MgO protective layer.ve layer.layer.

Effects of gangliosides from deer bone extract on the gene expressions of matrix metalloproteinases and collagen type II in interleukin-1β-induced osteoarthritic chondrocytes

정은영,서형주,Hyunji Lee,민병정,Sung Ug Jung 한국영양학회 2016 Nutrition Research and Practice Vol.10 No.6

BACKGROUND/OBJECTIVES: We investigated the anti-osteoarthritic effects of deer bone extract on the gene expressions of matrix metalloproteinases (MMPs) and collagen type II (COL2) in interleukin-1β-induced osteoarthritis (OA) chondrocytes. MATERIALS/METHODS: Primary rabbit chondrocytes were treated as follows: CON (PBS treatment), NC (IL-1β treatment), PC (IL-1β + 100 μg/mL glucosamine sulphate/chondroitin sulphate mixture), and DB (IL-1β + 100 μg/mL deer bone extract). RESULTS: The results of the cell viability assay indicated that deer bone extract at doses ranging from 100 to 500 μg/mL inhibits cell death in chondrocytes induced by IL-1β. Deer bone extract was able to significantly recover the mRNA expression of COL2 that was down-regulated by IL-1β (NC: 0.79 vs. DB: 0.87, P < 0.05) and significantly decrease the mRNA expression of MMP-3 (NC: 2.24 vs. DB: 1.75) and -13 (NC: 1.28 vs. DB: 0.89) in OA chondrocytes (P < 0.05). CONCLUSIONS: We concluded that deer bone extract induces accumulation of COL2 through the down-regulation of MMPs in IL-1β-induced OA chondrocytes. Our results suggest that deer bone extract, which contains various components related to OA, including chondroitin sulphate, may possess anti-osteoarthritic properties and be of value in inhibiting the pathogenesis of OA.

일제강점기 간호학의 보급과 간호사 양성 정책

정은영,Jung, Eun-Young 한국융합학회 2021 한국융합학회논문지 Vol.12 No.7

본 연구는 일제강점기에 다양한 사건들 속에서 간호의 주체성을 지켜내기 위힌 노력의 과정들을 살펴봄으로써 미래의 간호 발전을 위해 현재 간호학이 갖추어야 할 방향을 제시하고자 시도되었다. 일제강점기 간호의 역사는 크게 3단계로 나누어볼 수 있다. 근대 간호의 태동기인 1910년부터 1919년에는 간호교육기관이 확장되고, 간호 관련 제도를 만들었다. 1920년부터 1937년은 근대 간호의 발전기로 간호의 영역 확대될 뿐 아니라 간호 관련 법령을 개정하고 2개의 간호협회를 조직 하였다. 근대 간호의 정체기인 1938년부터 1945년은 전쟁이라는 사회적 재난 속에서 전쟁인력 동원을 위한 간호사 양성 정책이 펼쳐지면서 또다른 변화를 경험하게 되었다. 이러한 역사적 변화 속에서 시대적 사건들에 대해 다양한 해석을 할 수 있지만 그 시대에 정립된 간호제도는 현재 간호의 초석이 되었다는 것은 공통된 해석이다 간호의 영역 확대와 지속적인 발전을 위해 과거부터 현재까지 사회적 다양한 사건들 속에서 변화되는 간호의 역할과 보급에 대한 지속적인 관심과 연구가 필요하다. This study attempted to present the direction that nursing should have for the future nursing development by looking at the process of trying to protect the subjectivity of nursing in various events during the Japanese colonial period. In the early days of modern nursing, from 1910 to 1919, nursing education institutions were expanded and nursing-related systems were created. From 1920 to 1937, as a development of modern nursing, not only expanded the field of nursing, but also revised nursing-related laws and organized two nursing associations. From 1939 to 1945, the stagnation period of modern nursing, amidst the social disaster of war, a training policy for mobilizing war personnel was unfolded, and another change was experienced. In order to expand the field of nursing and continue to develop it, continuous interest and research on the role and spread of nursing that change in various social events from the past to the present are needed.

선천성 식도 폐쇄 환자에서 출생 후 위루관 삽입술과 계속적인 금식상태에서 근본수술 후 발생한 비후성 유문 협착증 - 1예 보고 -

정은영,최순옥,박우현,Jung, Eun-Young,Choi, Soon-Ok,Park, Woo-Hyun 대한소아외과학회 2011 소아외과 Vol.17 No.1

The onset of hypertrophic pyloric stenosis in the postoperative course of esophageal atresia with tracheoesophageal fistula is rarely reported. The diagnosis could be delayed due to its mimicking symptoms of other postoperative complications including gastroesophageal reflux or anastomotic stricture. We present an infant who had surgery for esophageal atresia with tracheoesophageal fistula. He had never fed since birth. The infant presented with an increased amount of orogastric tube drainage and consistently distended gastric air on simple abdominal X-ray. Abdominal ultrasonography showed hypertrophic thick pyloric muscle. The diagnosis of pyloric stenosis was confirmed d is rarely reported. The diagnosis could be delayed due to its mimicking symptoms of other postoperative complications including gastroesophageal reflux or anastomotic stricture. We present an infant who had surgery for esophageal atresia with tracheoesophageal fistula. He had never fed. The infant presented with uring surgery, After pyloromyotomy, the patient's condition improved.

안드로이드 기반 로고를 이용한 증강현실 시스템

정은영,정운국,임선진,문창배,김병만,Jung, Eun-Young,Jeong, Un-Kuk,Lim, Sun-Jin,Moon, Chang-Bae,Kim, Byeong-Man 한국정보처리학회 2011 정보처리학회논문지B Vol.18 No.4

스마트 폰의 등장과 모바일 인터넷을 제공함에 따라 휴대폰은 음성통신 수단이 아닌 웹을 통하여 서비스를 제공받는 도구 또는 각종 게임 및 응용 어플리케이션을 제공하는 놀이 수단으로도 발전하였고, 이로 인하여 사용량도 증가하였다. 사용량의 급증으로 인하여 모바일 광고에 대한 업계의 관심도 증가 하였지만, 한정적인 출력 화면에 의하여 광고 효과가 제한적일 수밖에 없다. 이를 보완하기 위해, 본 논문에서는 기업의 로고 광고의 효과를 극대화 할 수 있는 안드로이드 기반 로고 인식 증강 현실 시스템을 제안하였고, 이를 구현하여 실제 스마트 폰에 탑재한 후 다양한 성능 분석을 하였다. 실험결과, 그 가능성은 확인하였지만 현 하드웨어 성능상 실시간으로 지원하기에는 역부족임을 알 수 있었다. A mobile phone is becoming no longer a voice communication tool due to smartphones and mobile internet. Also, it now becomes a total entertainment device on which we can play game and get services by variety applications through the Web. As smartphones are getting more popular, their usages are also increased, which makes the interest of advertising industry in mobile advertisement increased but it is bound to be limited by the size of the screen. In this paper, we suggest an augmented reality logo system based on Android platform to maximize the effect of logo advertisement. After developing software and mounting it on a real smartphone, its performances are analyzed in various ways. The results show the possibility of its application to real world but it's not enough to provide real time service because of the low performance of hardware.

소아에서의 복강경 비장 절제술

정은영,김대연,김성철,김인구,Jung, Eun-Young,Kim, Dae-Yeon,Kim, Seong-Chul,Kim, In-Koo 대한소아외과학회 2004 소아외과 Vol.10 No.1

The laparoscopic splenectomy (LS) became popular over the last 10 years. The advantage of LS over open splenectomy (OS) includes short hospital stay, improved cosmesis, less development of postoperative intestinal ileus, and less analgesics required. The purpose of this study is to evaluate the outcome of LS at Asan Medical Center from January 1999 to January 2003. The records of 14 consequent children who underwent splenectomy were reviewed retrospectively. Patients characteristics, morbidity, mortality, operative time, blood loss, and hospital stay were analyzed., Seven patients age 5 to 15 years underwent LS under the indications: idiopathic thrombocytic purpura (ITP, n=3), hereditary spherocytosis (n=3), and myelodysplastic syndrome (n=l). Seven patients, age 7 to 16 years, underwent OS during the same period for ITP (n=7). Median operative time was 120 mInutes (80 to 170 mins.) in OS, and 270 minutes (110 to 480 mins,) in LS (p<0.05). Median length of hospital stay was 6 days (3 to 8) in OS, and 4 days (3 to 6) in LS (p>0.05). Median splenic length was 12.0cm (9.2 to 18.0) in OS, 14.0 cm (10.0 to 19.5) (p>0.05). Accessory spleens were identified in 3 of 7 LS and 1 of 7 OS cases. In the LS group, there was no conversion to open surgery. Two patients in LS required blood transfusion postoperatively. LS in children can be performed as effectively and safely as OS.

복강경 Nissen 위저추벽성형술 후 발생한 위배출지연에 대한 에리트로마이신의 유용한 효과 - 1예 보고-

정은영,황진복,최순옥,박우현,Jung, Eunyoung,Hwang, Jin-Bok,Choi, Soon-Ok,Park, Woo-Hyun 대한소아외과학회 2012 소아외과 Vol.18 No.1

Delayed gastric emptying (DGE) commonly occurs after Nissen fundoplication in patients with gastroesophageal reflux disease. Since the understanding of its pathogenesis is insufficient, an effective method of management has not yet been suggested. The authors report a case of a 16-year-old girl with DGE after laparoscopic Nissen fundoplication and treated with intravenous injection of low dose erythromycin.

Hemorrhagic Complication of Protruding Preperitoneal Fat Presenting as an Incarcerated Inguinal Hernia in a Patient with Clinically Occult Inguinal Hernia

정은영,박우현,최순옥,Jung, Eunyoung,Park, Woo-Hyun,Choi, Soon-Ok Korean Association of Pediatric Surgeons 2013 소아외과 Vol.19 No.2

전복막지방 탈출로 인한 합병증은 소아에서 매우 드물며 서혜부 탈장과의 감별이 어렵다. 저자들은 술 전 초음파에서 대망 지방을 포함하고 있는 서혜부 탈장으로 진단된 5세 남아의 수술 중 출혈이 합병된 전복막지방탈출증을 경험하였기에 보고하는 바이다.