전단농화유체가 함침된 아라미드 직물의 물리적 특성에 관한 연구

권남희,윤이나,정원영,임대영,유의상,김주혜,Kwon, Nam-Hee,Yoon, Yi-Na,Jeong, Won-Young,Lim, Dae-Young,Yoo, Eui-Sang,Kim, Ju-Hea 한국섬유공학회 2012 한국섬유공학회지 Vol.49 No.2

Fabric construction affects the friction between yarns, which is a very important parameter on energy absorption and propagation. This study reports the physical properties dependent on the weaving density and STF (shear thickening fluid) impregnated aramid fabrics. To improve the frictional force between yarns, STF was applied on Kevlar woven fabrics. STF/Kevlar composite was composed of Kevlar woven fabrics impregnated with fumed silica dispersed in poly-ethylene glycol. The results demonstrated that the yarn pull-out force of neat Kevlar fabrics increased linearly as the fabric count increased. In the case regarding STF impregnated Kevlar fabrics, the pull-out force increased exponentially as the fabric count increased. Considering the ballistic performance of the fabric is related to the pull-out force of yarns in the fabric, the STF/Kevlar composite with high density woven fabrics can be a decent material for bullet-proof equipment.

원인이 불명한 만성기침 환자에서 위식도역류질환의 빈도 및 치료 효과

권남희 ( Nam Hee Kwon ),이병재 ( Byung Jae Lee ),최동철 ( Dong Chull Choi ) 대한내과학회 2005 대한내과학회지 Vol.69 No.5

목적 : 위식도역류질환은 만성기침의 흔한 원인으로 알려져 있으나 국내에서의 빈도는 높지않다. 만성기침의 원인으로 위식도역류질환에 대한 검사의 필요성과 빈도가 어느 정도인지, 양자펌프억제제를 투여하였을 때 치료 효과에 대해 알아보고자 하였다. 방법 : 3주 이상 지속되는 만성기침을 주소로 본원에 내원한 환자를 대상으로 기관지천식, 호산구성 기관지염, 그리고 후비루증후군에 의한 경우를 분류한 후 기침의 원인이 불분명하거나 위식도역류증상이 있는 경우에 24시간 보행성 식도 pH 검사를 실시하였다. DeMeester 종합점수가 14.7점 이상이거나 증상 민감지수가 10% 이상인 경우에 위식도역류질환으로 진단하고, PPI를 투여하여 기침의 호전여부를 관찰하였다. 결과 : 531명 중 24시간 보행성 식도 pH 검사를 필요로 한 경우는 67명이었다. 34명에서 24시간 보행성 식도 pH 검사를 시행하였고, 8명이 위식도역류질환으로 진단되었다. Omeprazole 20~40mg/day 단독 또는 위장관 운동개선제를 같이 투여하였을 때 5명에서 기침이 호전되었다. 결론 : 만성기침환자에서 24시간 보행성 식도 pH 검사를 필요로 하는 경우는 많지 않았으며 만성기침환자에서 그리고 원인이 불분명한 만성기침에서 24시간 보행성 식도 pH 검사를 통해 진단한 위식도역류질환의 빈도는 낮았다. 치료 효과는 기존 보고와 크게 차이가 없었다. Background : Gastroesophageal reflux disease (GERD) is a common cause of chronic cough. Nevertheless the incidence of GERD is low in Korea. We evaluated the necessity of tests for GERD as a cause of chronic cough and treatment responses to proton pump inhibitors. Methods : Patients with cough for more than three weeks were enrolled. Patients who were diagnosed as bronchial asthma, eosinophilic bronchitis, and posterior nasal drip were differentiated. Twenty four hour ambulatory esophageal pH monitoring was performed in patients with chronic cough of unknown causes or gastroesophageal reflux symptoms. Patients were diagnosed as GERD when DeMeester composite score was over 14.7 or symptom sensitivity index was over 10 percent. We prescribed proton pump inhibitors for patients diagnosed as GERD. Results : Sixty seven of 531 patients supposedly needed 24-hour ambulatory esophageal pH monitoring. 24-hour ambulatory esophageal pH monitoring was performed in 34 patients and eight patients were diagnosed as GERD. Symptoms improved in 5 patients on taking omeprazole 20~40mg/day single or combined with prokinetic agents. Conclusions : Among patients with chronic cough, not many cases needed to take 24-hour ambulatory esophageal pH monitoring. The incidence of GERD, diagnosed by 24-hour ambulatory esophageal pH monitoring, in chronic cough of unknown causes was low. The effect of omeprazole was similar to the previous reports.(Korean J Med 69:528-535, 2005)

복부 할로잉 운동에서 실시간 초음파 영상 피드백의 사용 효과

권남희 ( Nam Hee Kwon ),이현옥 ( Hyun Ok Lee ),박두진 ( Du Jin Park ) 대한물리의학회 2011 대한물리의학회지 Vol.6 No.3

Purpose:This study examined the feedback effect of real-time ultrasound imaging on the thickness of transversus abdominis(TrA), internal abdominal oblique(IO) and external abdominal oblique(EO) during abdominal hollowing exercise(AHE) in crook lying. Methods:We performed this study on 30 healthy men who voluntarily consented to participate in this study after listening to its purpose and method. All subject were divided into an experimental group(n=15) with using the real-time ultrasound imaging feedback(RUIF) and a control group(n=15) without the RUIF The thickness changes between rest and AHE were compared between the two groups in crook lying. Results:The difference in TrA and EO thickness changes between the groups were significant in crook lying (p<0.05). Conclusion:The group with using real-time ultrasound imaging feedback showed a higher increase in the thickness of TrA than the other group without real-time ultrasound imaging feedback. And the thickness of EO in the group with using real-time ultrasound imaging feedback decreased than the other group without real-time ultrasound imaging feedback. If the muscle thickness can be regarded as an indicator of muscle activity, RUIF will be helpful for inducing the independent activity of TrA by reducing the activities of abdominal muscles such as EO.

아급성기침의 원인과 임상 경과

권남희 ( Nam Hee Kwon ),오미정 ( Mi Jung Oh ),민태훈 ( Tae Hoon Min ),이병재 ( Byung Jae Lee ),최동철 ( Dong Chull Choi ) 대한천식알레르기학회 2004 천식 및 알레르기 Vol.24 No.4

호산구 증가증으로 내원한 환자에서 개회충증이 가지는 임상적 의미

권남희 ( Nam Hee Kwon ),오미정 ( Mi Jung Oh ),이상표 ( Sang Pyo Lee ),이병재 ( Byung Jae Lee ),최동철 ( Dong Chull Choi ) 대한천식알레르기학회 2005 천식 및 알레르기 Vol.25 No.4

Background: Toxocariasis is one of the major causes of peripheral blood eosinophilia and provokes eosinophilic infiltration in the internal organ. Extended studies of the incidence and clinical manifestations of toxocariasis have been rare. Objective: The purpose is to evaluate the prevalence and clinical characteristics of toxocariasis in patients with unknown eosinophilia, and to analyze the efficacy of toxocara ELISA. Method: Patients with presenting with peripheral blood eosinophilia (>500/μL or ≥10% of WBC) from Oct. 2001 through Jan. 2005 were enrolled. After checking the drug histories and the presence of allergic diseases or parasite infections, specific serum IgG Ab to Toxocara canis larval antigen was measured by ELISA. Liver and lung involvement was also evaluated. Result: One-hundred and three patients (81 men, 22 women) were evaluated. Seventy patients (68.0%) were diagnosed with toxocariasis. The patients who had a history of eating raw liver had a higher incidence, and the patients with liver involvement had higher serum ECP values. The improvement rate was not different between treated and untreated patients. The mean onset of improvement was 12 months. Conclusion: The prevalence of toxocariasis is high in patients with unknown eosinophilia. The toxocara ELISA is essential for evaluation of the cause of unknown eosinophilia. (Korean J Asthma Allergy Clin Immunol 2005;25: 299-304)

武力紛?における文化財保護のための?際的取組と實?性の確保

權南希(Kwon Nam-Hee) 한국비교공법학회 2011 공법학연구 Vol.12 No.2

During the past years, numerous and recurrent disasters have damaged an important part of the cultural heritage. Wars and ethnic or religious conflicts have also haphazardly or voluntarily destroyed it, hence the necessity of launching information campaign so as to safeguard and protect, as far as possible, the cultural property in order to pass it on to future generations. This paper consists of five sections. The introduction (Chapter 1) shows the feature of cultural property(Chapter 2). It is followed by a brief overview of the historical background to the international legal regime on the protection of cultural property (Chapter 3). The World Wars have destroyed the widespread destruction and pillage of European cultural property. It was these ‘cultural tragedies’ that ultimately provided the impetus for the international community to draft a set of laws specifically aimed at the protection of cultural property in the event of armed conflict. In 1954, the Hague Convention was drafted aspiring to provide and improve protection of cultural property during war. The Convention is supplemented by two protocols. The first of 1954, deals with the prevention and export of cultural property from occupied territory, its safeguard and return. The second, of 1999, is more comprehensive to improve the implementation of the Convention. It is further discussed on the implementation scheme of the Convention and its two Protocols, including technical measures, periodic report and the penal measures. It remains to be seen, however, whether States would be willing to nominate cultural property for enhanced protection given their reluctance to do so under the original regime. Highly important constitutional issues need to be addressed at the national level, such as the extension of the principle of international jurisdiction for the most serious new ‘cultural war crimes’, in order for this Protocol to execute effectively. In conclude, the effective respect for cultural property in the event of armed conflict by States Parties will ultimately be reliant upon the proper national implementation of the Hague Convention. An international exchange of information is a key element in the improvement of the compliance with the Convention by each State Party (Chapter 4, 5).

COVID-19 비대면 박물관교육에 대한 고찰

권남희(Nam Hee Kwon),송주희(Ju Hee Song),임한슬(Han Seul Lim) 한국문화교육학회 2021 문화예술교육연구 Vol.16 No.4

COVID-19의 장기화는 사회전반에서 비대면 문화의 확산을 가져왔고, 박물관에서도 온라인으로 이루어지는 다양한 비대면 활동을 요구하고 있다. 본 연구에서는 비대면 박물관교육에 주목하여 Siemens(2005)의 연결주의 원리와 연결학습 과정을 설명한 박기범(2018)의 연구를 토대로 박물관과 학습자의 유의미한 연결을 검토하고자 하였다. 연구방법으로는 2020년 4월~2021년 6월 중 서울시 소재 국공립박물관에서 진행된 비대면교육 현황을 통해 박물관교육의 변화와 시기별 특성을 분석하였다. 그리고 이 시기 박물관 교육프로그램을 실행해 본 경험을 가진 교육관계자(학예연구사, 연구원, 강사) 11명을 연구 참여자로 선정하여 이들의 경험 속에서 박물관교육을 논의하였다. 연구결과, 박물관 비대면교육의 유형과 시기에 따른 변화를 검토할 수 있었다. 박물관에서 이루어진 비대면교육에 대해 준비기(20년 4월~8월) ‘혼란의 연속’, 과도기(20년 8월~12월) ‘연결의 확장’, 도약기(21년 1월~6월) ‘박물관교육의 새로운 가능성’으로 유목화 할 수 있었다. 따라서 비대면교육은 관람객이 박물관으로 접근하는 새롭고 확장된 경로가 되고 있었다. 이 경로에서 원활한 소통을 위해서는 무엇보다 박물관교육 실행자들의 연결역량의 중요함을 지적하였다. 본 연구를 토대로 박물관교육 실행자의 연결역량에 대한 후속연구를 기대한다. COVID-19 has caused the spread of non-face-to-face culture throughout society, and museums are also demanding various non-face-to-face activities online. This study focused on non-face-to-face museum education. Based on Siemens(2005) s principle of connectivism and Park (2018) s study on the connected learning process, we tried to examine the meaningful connection between the museum and the learner. As a research method, the status of non-face-to-face education held at the national and public museums in Seoul from April 2020 to June 2021 was reviewed. Changes and characteristics of museum education during this period were analyzed. At this time, 11 education officials (curators, researchers, lecturers) who had experience in implementing museum education programs were selected as research participants, and museum education was discussed in their experiences. As a result of the study, it was possible to examine changes according to the type and period of non-face-to-face education in the museums. Regarding the non-face-to-face education held at the museum, preparation period (from April to August 2020) Continuous chaos , transition period (from August to December 2020) Expansion of connection , and leapfrogging period (from January to June 2021) could be summarized as New Possibilities of Museum Education . Therefore, non-face-to-face education became a new and expanded route for visitors to access the museum. For smooth communication in this path, above all, the importance of the connection competency of museum education practitioners was pointed out. Based on this study, it is expected that a follow-up study on the connection competency of museum education practitioners will be conducted.

동맥관개존증이 있는 미숙아에서 ibuprofen 치료 실패의 위험인자

권남희 ( Nam Hee Kwon ),이지훈 ( Ji Hoon Lee ),전가원 ( Ga Won Jeon ),신종범 ( Jong Beom Sin ) 대한주산의학회 2014 Perinatology Vol.25 No.4

목적 : 재태 연령 32주 미만의 미숙아에서 혈역학적으로 유의한 동맥관 개존증이 진단되어 prostaglandin 합성 억제제를 투여한 후에도 약 20-30%는 약물에 반응하지 않고 동맥관 개존증이 지속되어 추가 치료가 필요하다. 따라서 본 연구에서는 미숙아에서 동맥관 개존증의 치료를 위해 투여한 ibuprofen의 치료 실패와 관련된 인자에 대해 알아보고자한다. 방법 : 2010년 1월부터 2012년 12월까지 인제대학교 부산백병원 신생아 집중 치료실에 입원한 재태 연령 32주 미만의미숙아들 중 심초음파를 통해 혈역학적으로 유의한 동맥관 개존증이 진단 되어 ibuprofen을 사용한 125명을 대상으로ibuprofen 치료 후 동맥관이 폐쇄된 반응군과 ibuprofen 투여 후에도 혈역학적으로 유의한 동맥관이 지속되는 비반응군의 임상특성과 비반응군의 위험인자를 알아보았다. 결과 : 총 125명 중 반응군 I은 59%, 비반응군 I은 41% 이고, 두 번째 주기 ibuprofen을 투약한 36명 중 반응군 II는39%, 비반응군 II는 61% 였다. 비반응군 I/II는 반응군 I/II에 비해 출생 체중이 작고 재태 연령이 어렸으며 72% (37/51)에서 동맥관 결찰 수술이 필요하였다. 비반응군 I에서 인공호흡기 치료 기간이 길었고 호흡기 질환으로 인한 스테로이드투여가 더 많았으며 재원기간이 길었다. 비반응군 II에서 진단 당시 동맥관 직경이 크고, 저혈압으로 인한 승압제 사용이많았다. 결론 : 재태 연령이 어리고 출생 체중이 작을수록 ibuprofen에 대한 동맥관의 반응이 낮았다. 큰 동맥관 직경과 저혈압으로 인한 승압제 사용은 동맥관 개존증에서 ibuprofen을 이용한 약물 치료 실패의 위험인자로 고려할 수 있다. 이는향후 추가 연구를 통해 수술적 치료 여부 및 시기를 결정하는데 도움될 것으로 생각된다. Purpose : In this study, the risk factors of failure of ibuprofen treatment in preterm infants with hemodynamicallysignificant patent ductus arteriosus (hsPDA) were investigated. Methods : Among 403 preterm infants (<32 weeks gestation) born between January 2010 and December 2012,125 infants treated with ibuprofen for hsPDA were retrospectively reviewed. The preterm infants were dividedinto the following groups according to their response to the 1st and 2nd cycles of ibuprofen treatment: respondergroups I and II, closure of the ductus arteriosus after the 1st and 2nd cycles of ibuprofen treatment; and nonrespondergroups I and II, persistency of hsPDA after the 1st and 2nd cycles of ibuprofen treatment. Results : One hundred twenty five infants were enrolled in the study: 74 in responder group I, 51 in non-respondergroup I, 14 in responder group II, and 22 in non-responder group II. In non-responder group I, the gestational ageand birth weight were smaller, the postnatal steroid treatment was more frequent, and the duration of mechanicalventilation and the days spent in the hospital were prolonged.I n non-responder group II, the gestational age andbirth weight were smaller, the diameters of the ductus arteriosus were larger, and the inotropics use was morefrequent. Conclusion : Failure of ibuprofen treatment of hsPDA is associated with the diameter of the ductus arteriosusand with inotropics use. Obtaining data regarding these is expected to help in determining if early direct surgicalligation is needed.

소아 및 성인 마제신 환자들의 임상적 특징과 비교

김유경,권남희,강동일,정우영,Kim, Yu Kyong,Kwon, Nam Hee,Kang, Dong Il,Chung, Woo Yeong 대한소아신장학회 2013 Childhood kidney diseases Vol.17 No.2

목적: 마제신은 신장융합(renal fusion)을 가진 가장 흔한 신기형이다. 저자들은 단일병원에서 관찰된 마제신 환자들의 동반 질환을 포함한 임상적 특징을 조사하고자 하였다. 방법: 2000년 1월부터 2012년 12월까지 부산백병원에서 영상의학적 방법에 의해 마제신으로 진단된 환자 43명을 대상 (소아군 14례, 성인군 29례)으로 후향적으로 의무기록을 분석하였다. 또한 소아군과 성인군의 자료를 비교 분석하였다. 결과: 전체 환자의 진단당시의 평균 연령의 중간값은 34세이었고, 성별은 남자 17명 여자 26명 이었다. 소아군(<18세, 14명)의 평균연령은 $6.7{\pm}6.2$세, 남자가 5명이 있었다. 진단 시 혈뇨를 보인 1명을 제외한 대부분 동반 질환의 평가 도중 우연히 발견되었다. 동반된 질환으로는 터너증후군이 5례(36%)로 가장 많았고, 동반된 비뇨기계 기형으로는 2명(14.2%)에서 신우요관협착을 동반하였다. 신기능은 마지막 추적검사까지 모두 정상이었다. 성인군에서 진단된 29명의 진단 당시 연령 중간값은 48세이었고, 남자가 12명 여자 17명이 있었다. 진단 시 다른 질환의 평가 중 18명이 우연히 발견되었으며, 11명은 혈뇨 또는 결석으로 인한 복통 등이 있었다. 동반질환으로는 터너증후군이 5례로 가장 많았으며, 5명에서 신우요관협착이 동반되었고, 그 외 수신증, 과민성 방광 등을 동반하였다. 마지막 추적검사에서 6명(21%)에서 신기능감소(혈청Cr>1.5)가 관찰되었다. 결론: 마제신은 우연히 발견되는 경우가 대부분으로, 동반된 단일 질환으로는 터너증후군이 가장 많았다. 성인기로 이행 후 다양한 비뇨기과적 합병증의 위험이 높으므로 지속적인 추적 관찰이 필요하다. Purpose: We aimed to investigate the clinical characteristics and associated diseases in children with a horseshoe kidney and compared these data between children and adults. Method: We performed a retrospective analysis of the medical records and radiological findings of 43 patients diagnosed with a horseshoe kidney in the Busan Paik Hospital. The subjects were divided into the children's group (14 cases, age <18 years) and the adult group (29 cases, age ${\geq}18$ years). Results: The study group consisted of 17 males and 26 females with a median age of 34 years. In the children's group (14 cases), 5 subjects were male and 9 were female, with a mean age of $6.7{\pm}6.2$ years. Most of the subjects were asymptomatic and were incidentally diagnosed with horseshoe kidney during their evaluation for another disease. Among the associated diseases in the children's group, Turner syndrome was the most common (5 cases), whereas ureteropelvic junction (UPJ) stricture was observed in 2 cases (14.2%). None of the children exhibited abnormal renal function during the follow-up period. In the adult group (29 cases), 12 subjects were male and 17 were female, with a mean age of 48 years. Eighteen patients were incidentally diagnosed with horseshoe kidney during their evaluation for another disease, and 11 patients had hematuria or abdominal pain due to renal stones. Among the associated diseases in the adult group, Turner syndrome was the most common (5 cases), and UPJ stricture was observed in 5 cases; the other accompanying diseases included hydronephrosis and overactive bladder. Six patients exhibited decreased renal function (serum creatinine level >1.5) during the follow-up period. Conclusion: Horseshoe kidney is usually diagnosed incidentally in both children and adults. In the present study, we noted that Turner syndrome was the most common associated disease in children. In addition, most children were asymptomatic but had a high risk of urologic complications after the transition to adulthood. Therefore, children with horseshoe kidney require continuous follow-up.

4명의 쌍생아 미숙아에서 수직감염으로 전파된 뇌수막염을동반한 심한 콕사키바이러스B감염

정종식 ( Jong Sik Jung ),권남희 ( Nam Hee Kwon ),전가원 ( Ga Won Jeon ),신종범 ( Jong Beom Sin ) 대한주산의학회 2013 Perinatology Vol.24 No.4

During summer and fall months (from June to November), enteroviral infection is more common than group B streptococcal infection or herpes simplex viral infection in neonates. Enteroviruses are divided into polioviruses, coxsackieviruses A, coxsackieviruses B, and echoviruses. Enteroviruses can cause a wide spectrum of acute illnesses ranging from non-specific febrile illness, upper respiratory tract infection or gastroenteritis, to severe diseases such as myocarditis, and encephalitis. Coxsackieviruses B are important neonatal pathogens, which can cause meningoencephalitis, disseminated intravascular coagulopathy, and cardiomyopathy. Transplacental transmission of coxsackievirus or perinatal transmission by inhalation or swallowing of cervical secretion or feces during delivery causes more severe diseases than postnatal transmission by horizontal transmission in nursery or neonatal intensive care unit, due to larger load of viruses. Four preterm infants had severe coxsackieviral B infection with thrombocytopenia, meningitis, disseminated intravascular coagulopathy, and myocarditis within seven days of age during this June. Coxsackieviruses B were detected from their feces, cerebrospinal fluid, and blood. Viruses might be transmitted prenatally through placenta from mother to fetus, which caused severe disease. Coxsackieviruses B infections have to be considered in the neonates with sepsis-like illness during summer and fall months, or enteroviral seasons.