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서정민,정풍만,Seo, Jeong-Meen,Jung, Poong-Man 대한소아외과학회 1995 소아외과 Vol.1 No.1
The clinical experience of 2,340 inguinal hernia repaired by one pediatric surgeon on 2,079 children at Hanyang University Hospital from September 1979 to December 1993 was analyzed. Of 2,046 patients who had primary hernia repairs at Hanyang University Hospital, 1,636 were male and 410 female, and 55.5% of hernias occurred on the right side, 36.0% on the left, and 8.6% were bilateral. The patients presented hernia under the age of 12 months were 45.3% and those performed herniotomy under the age of 12 months were 25.5%. Birth weight was less than 2.5kg in 111 patients(8.7%) of 1,279 data available patients. Ninety(6.6%) of 1,354 data available patients were premature(<37wks gestation). The proportions of bilateral inguinal hernia and the onset age under 12 months of life in low birth weight babies and premature babies were higher than in full-term babies. Incarcerated inguinal hernia occurred in 327 patients(16.0%) of whom 8 patients were strangulated hernias. The occurrence of incarceration inversely related with age of patients. The subsequent contralateral inguinal hernia following unilateral hernia repairs occurred in 80 patients(4.3%) among which 72 were male and 8 were female. The incidence of contralateral inguinal hernia was more frequent in boys(4.8%) than girls (2.2%) and in cases after left herniotomy(6.4%) than after right herniotomy(2.9%). Sixty percent of contralateral inguinal hernia developed within 1 year after primary hernia repair. The recurrence of inguinal hernia occurred in 6 patients(0.27%) treated at our hospital primarily. There were one or more associated congenital anomalies in 83 patients of which congenital heart diseases were the most common. Sliding hernia occurred in 25 patients consisted of 5 boys and 20 girls. Family history was noted in 35 patients and there were 28 sets of monozygotic and 3 sets of dizygotic twins.
서정민,이상곤,황순이,김상찬,왕향란,조성언,백정한,Seo, Jung-Min,Lee, Sang-Gon,Hwang, Sun-Yi,Kim, Sang-Chan,Wang, Hyang-Ran,Jo, Sung-Eon,Baek, Jung-Han 대한한방소아과학회 2006 대한한방소아과학회지 Vol.20 No.3
Objectives : Oriental medicine has set the no herb medicamentous dose for child, on the other hand the western medicine has it standardizing of age, weight or dimension of body. Therefore, we aimed to research the herb medicamentous dose for child being in being used in clinic. Methods : We made up a question of the oriental medical doctors of the master's and doctor's course in ○○ university. Results : 1. Child dose of herb medicine a time likes this. 1 pack is written prescription most at children patients under 1 year. 1 pack and 2 packs are written prescription most at children patients over 1 under 2. 2 packs are written prescription most at children patients over 2 under 3. 4 packs are written prescription most at children patients over 3 under 4. 10 packs are written prescription most at children patients over 8 under 14. Dose of herb medicine written prescription at children patients over 5 under 8 is in decentralization from 2 to 10 packs. 2. 2 or 3 times are most in a number of taking medicine a day. 3. 3 days are common in period of taking medicine under 5, over 10 days are common over 5. 4. It is necessary to regulating child dose of herb medicine.
Infusiblization of Iodine Doped Polycarbosilane for Silicon Carbide Fiber Fabrication
서정민,허서에르딘키싱바야르,조광연,Seo, Jung-Min,Khishigbayar, Khos-Erdene,Cho, Kwang-Youn The Korean Fiber Society 2016 한국섬유공학회지 Vol.53 No.6
Low molecular polycarbosilane (PCS) is used as raw material in the fabrication of continuous silicon carbide (SiC) fiber at a relatively low temperature using a low pressure stabilization method with iodine vapor. The low stabilization temperature provides a good environment to use the low molecular PCS for the melt-spun process, which has good spinnability, but also has many difficulties with the conventional oxidation curing method due to the low softening point of PCS. However, SiC fibers fabricated from the low molecular PCS have shown poor mechanical properties. In this study, we are aiming to improve those mechanical properties and fabricate high strength SiC fibers from low molecular PCS using the low pressure stabilization method. The ceramic yield of iodine doped PCS was increased in proportion to the iodine content after stabilization according to thermogravimetric analysis, and exhibits more than twice the tensile strength than fibers fabricated from as-received PCS.
특집:에너지플랜트 및 핵심기자재 기술 - 플랜트용 가스터빈 기술
서정민,박준영,최범석,Seo, Jeong-Min,Park, Jun-Yeong,Choe, Beom-Seok 재료연구소 2012 機械와 材料 Vol.24 No.1
국내 플랜트산업의 낮은 외화가득률의 원인인 낮은 국산화율의 플랜트 기자재 중 하나인 가스터빈은 선진국대비 기술격차가 크고 해외의존도가 높다. 가스터빈은 플랜트 산업에 활용도가 높은 기자재며 특히 오일&가스 플랜트의 경우 upstream에서 downstream에 이르기까지 활용도가 매우 높다. 가스터빈 시장은 연 7.5%의 성장을 보이고 있으며 2015년에는 560억불에 달할 것으로 예상된다. 선진국에서는 ATS, NGST, ETN 등 범국가 단위로 가스터빈 기술을 개발해 왔으며, 최근에는 고효율, 저비용, 친환경 가스터빈 기술향상에 집중하고 있다. 가스터빈 기술은 이제 발전기를 지나 성숙기에 이르고 있지만 국내의 가스터빈 기술은 단위 부품 제작이나 면허 생산 등의 생산 기술에 치우친 초보적인 수준에 머물고 있다.
서정민,최범석,박준영,박철훈,김유일,Seo, Jeong-Min,Choi, Bum-Seok,Park, Jun-Young,Park, Cheol-Hoon,Kim, You-Il 한국군사과학기술학회 2011 한국군사과학기술학회지 Vol.14 No.6
Design of 500W class UMGT(Ultra Micro Gas Turbine) for power generation is conducted. Basic design parameters are obtained by cycle analysis. Off-design performances are predicted by 1D aerodynamic design and 1D performance analysis of compressor and turbine. 3D impellers are designed and 3D performance analysis is carried out to predict the performance characteristics of UMGT. 1D and 3D performance analysis show similar results. Structure analysis is conducted to select materials. Titanium Alloy is proposed for structural stability.
신제형의 소아 약물 순응도 조사;기존의 제재와 비교하여 복용의 간편성, 맛의 개선도, 운반 및 저장의 편의성 포함
서정민,윤혜진,김상찬,황순이,지선영,조동희,손지영,백정한,Seo, Jung-Min,Yun, Hye-Jin,Kim, Sang-Chan,Hwang, Sun-Yi,Jee, Seon-Young,Cho, Dong-Hee,Son, Ji-Young,Baek, Jung-Han 대한한방소아과학회 2007 대한한방소아과학회지 Vol.21 No.3
Objective Medication is one the most important things in treatment for children, but prescribing traditional herbal medicine for them is very difficult. Therefore, we made 4 new forms of oriental herbal medicine that has a better taste, smell, and color. These new forms also have a texture that make medicine easier to chew. Methods We made up a question of 20 children visiting $\bigcirc\;\bigcirc$ university hospital. Results and Conclusions 1. Children preferred liquid or pill type of herbal medicine. 2. The preference sensory test of the traditional medicine and new form of medicine had not much difference. 3. On the test for preferences, it resulted as they liked the 4th form of new medicine which was with little bit more of sweet and sour taste, and the 3rdformwithnewcolors. 4. They hated traditional herbal medicine of the taste, smell, color, sensation of texture of material.
아토피 피부염의 중증도 평가방법에 대한 제언 ; 비교 분석 및 소아 환자의 평가방법에 대한 설립
서정민,김상찬,황순이,황보민,지선영,이상곤,백정한,Seo, Jung-Min,Kim, Sang-Chan,Hwang, Sun-Yi,Hwang, Bo-Min,Jee, Seon Young,Lee, Sang-Gon,Baek, Jung-Han 대한한방소아과학회 2006 대한한방소아과학회지 Vol.20 No.1
Objective : As prevalence of atopic dermatitis(AD) rises and medicine of atopic dematitis develops, the methods of measurement for atopic dermatitis have developed. Therefore, we aimed to establish a new sconring system in oriental medicine for a childhood atopic dematitis, by comparison, analysis of various sconing systems. Method : We searched for the data related to severity sconing systems of atopic dermatitis in Entrez PubMed on abroad thesis and KISS(Korenstdued Information Service System) on domestic thesis from 1990 to 2005. Result : Severity sconing systems for atopic dermatitis satisfy validity, reliability, sensitivity of change and verification of this. The essential items of severity sconing systems are extent, intensity and subjective symptoms. The lesion is divided into 9 areas(head and neck, upper limbs, elbow, hands, trunk, hip and inguinal, lower limbs, knee, feet). The items of intensity are erythema, oedema and induration and papulation, oozing and weeping and erosion, excorition, scaling, lichenification. The subjective symptom is pruritis, evaluated according to sleep loss and obstruction of play and study. The extent and intensity is evaluated in combination. We suggested that extent and intensity occupied for 70% and subject symptoms accounted for 30% of total score.