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.

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.

소아의 한약복용에 관한 임상적 실태 조사

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.

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.

소아의 사상체질별 신체 특성의 차이에 관한 연구 -Zema21을 통한 체질분석 및 체성분검사와의 상관관계를 중심으로-

서정민,이유진,윤혜진,강미선,백정한,Seo, Jung-Min,Lee, Yu-Jin,Yun, Hye-Jin,Kang, Mi-Sun,Baek, Jung-Han 대한한방소아과학회 2009 대한한방소아과학회지 Vol.23 No.1

Objectives The purpose of this research is to find out the relationship between Zema 21 and in body based on the Sasang Constitutional difference of children. Methods We collected 1050 children from 5 years old to 15 years old who had been tested for both Zema21 and Inbody in OO oriental hospital from the period of September 1, January 1999 to August 31, 2008. This research investigated the Constitutional differences based on the relationship between Zema21 and Inbody. Results 1. It turned out that the children's height does not have a significant relationship between their age and gender. 2. Generally, Taeumin's weights were significantly high than those of Soyangin's and Soumin's in certain ages in children over 9 years old and in all genders. 3. The percentage of the body fat in Taeumin were significantly high than Soyangin and Soumin in certain ages in children over 10 years old and in all genders. 4. Waist-Hip ratio in Taeumin were significantly high than Soyangin and Soumin in male over 10 years old and in female over 13 years old of children. On the other hand, there was no relationship to the Soyangin and Soumin. 5. The obesity degree in Taeumin were significantly high in all female and male who were over 10 years old. Soyangin were the next highest group and Soumin follows. 6. Body Mass Index in Taeumin were significantly high in all genders who were over 10 years old. The second is Soyangin, and the lowest groupis Soumin. 7. The Basal Metabolic Rate resulted as significant in all age, although this does not have any relationship between age and gender. 8. Abdomen out in Taeumin were significantly high in ages over 10 and genders. The second is Soyangin and the lowest is Soumin. 9. Hip circumference Abdomen out in Taeumin were significantly high in ages over 10 and genders. Specially, Taeumin shows highest value, then the second is Soyangin, and the lowest is Soumin who were over 12 years old. Conclusions The results of Inbody were not significant to the children who were under 9 years old. Taeumin became significantly fat after over 10 years old. The results of Body Composition except height and Basal Metabolic Rate(MBR) were the highest in Taeumin, and Soyangin and Soumin were the second, and the third respectively.

예측 불가능한 호흡 변화에 따른 사이버나이프 종양 추적 방사선 치료의 정확도 분석

서정민,이창열,허현도,김완선,Seo, jung min,Lee, chang yeol,Huh, hyun do,Kim, wan sun 대한방사선치료학회 2015 대한방사선치료학회지 Vol.27 No.2

Purpose : Cyber-Knife tumor tracking system, based on the correlation relationship between the position of a tumor which moves in response to the real time respiratory cycle signal and respiration was obtained by the LED marker attached to the outside of the patient, the location of the tumor to predict in advance, the movement of the tumor in synchronization with the therapeutic device to track real-time tumor, is a system for treating. The purpose of this study, in the cyber knife tumor tracking radiation therapy, trying to evaluate the accuracy of tumor tracking radiation therapy system due to the change in the form of unpredictable sudden breathing due to cough and sleep. Materials and Methods : Breathing Log files that were used in the study, based on the Respiratory gating radiotherapy and Cyber-knife tracking radiosurgery breathing Log files of patients who received herein, measured using the Log files in the form of a Sinusoidal pattern and Sudden change pattern. it has been reconstituted as possible. Enter the reconstructed respiratory Log file cyber knife dynamic chest Phantom, so that it is possible to implement a motion due to respiration, add manufacturing the driving apparatus of the existing dynamic chest Phantom, Phantom the form of respiration we have developed a program that can be applied to. Movement of the phantom inside the target (Ball cube target) was driven by the displacement of three sizes of according to the size of the respiratory vertical (Superior-Inferior) direction to the 5 mm, 10 mm, 20 mm. Insert crosses two EBT3 films in phantom inside the target in response to changes in the target movement, the End-to-End (E2E) test provided in Cyber-Knife manufacturer depending on the form of the breathing five times each. It was determined by carrying. Accuracy of tumor tracking system is indicated by the target error by analyzing the inserted film, additional E2E test is analyzed by measuring the correlation error while being advanced. Results : If the target error is a sine curve breathing form, the size of the target of the movement is in response to the 5 mm, 10 mm, 20 mm, respectively, of the average $1.14{\pm}0.13mm$, $1.05{\pm}0.20mm$, with $2.37{\pm}0.17mm$, suddenly for it is variations in breathing, respective average $1.87{\pm}0.19mm$, $2.15{\pm}0.21mm$, and analyzed with $2.44{\pm}0.26mm$. If the correlation error can be defined by the length of the displacement vector in the target track is a sinusoidal breathing mode, the size of the target of the movement in response to 5 mm, 10 mm, 20 mm, respective average $0.84{\pm}0.01mm$, $0.70{\pm}0.13mm$, with $1.63{\pm}0.10mm$, if it is a variant of sudden breathing respective average $0.97{\pm}0.06mm$, $1.44{\pm}0.11mm$, and analyzed with $1.98{\pm}0.10mm$. The larger the correlation error values in both the both the respiratory form, the target error value is large. If the motion size of the target of the sine curve breathing form is greater than or equal to 20 mm, was measured at 1.5 mm or more is a recommendation value of both cyber knife manufacturer of both error value. Conclusion : There is a tendency that the correlation error value between about target error value magnitude of the target motion is large is increased, the error value becomes large in variation of rapid respiration than breathing the form of a sine curve. The more the shape of the breathing large movements regular shape of sine curves target accuracy of the tumor tracking system can be judged to be reduced. Using the algorithm of Cyber-Knife tumor tracking system, when there is a change in the sudden unpredictable respiratory due patient coughing during treatment enforcement is to stop the treatment, it is assumed to carry out the internal target validation process again, it is necessary to readjust the form of respiration. Patients under treatm 목 적 : 사이버나이프 종양 추적 시스템(Cyber-knife tumor tracking system)은 환자 외부에 부착한 LED marker에서 얻어진 실시간 호흡 주기 신호와 호흡에 따라 움직이는 종양의 위치와의 상관관계를 바탕으로 종양의 위치를 미리 예측하고 종양의 움직임을 치료기와 동기화 (Synchronize) 시켜 실시간으로 종양을 추적하며 치료하는 시스템이다. 본 연구의 목적은 사이버나이프 종양 추적 방사선 치료 중 기침이나 수면 등으로 인해 예측 불가능한 갑작스러운 호흡 형태 변화에 따른 종양 추적 방사선 치료 시스템의 정확도를 평가하고자 한다. 대상 및 방법 : 연구에 사용된 호흡 Log 파일은 본원에서 호흡 동조 방사선치료(Respiratory gating radiotherapy)나 사이버나이프 호흡 추적 방사선수술(Cyber-knife tracking radiosurgery)을 받았던 환자의 호흡 Log 파일을 바탕으로, 정현곡선 형태(Sinusoidal pattern)와 갑작스런 변화 형태(Sudden change pattern)의 Log 파일을 이용하여 측정이 가능하도록 재구성하였다. 재구성 된 호흡 Log 파일을 사이버나이프 동적 흉부 팬텀에 입력하여 호흡에 따른 움직임을 구현할 수 있도록 기존 동적 흉부 팬텀의 구동장치를 추가 제작하였고, 호흡의 형태를 팬텀에 적용 시킬 수 있는 프로그램을 개발하였다. 팬텀 내부 표적(Ball cube target)의 움직임은 호흡의 크기에 따라 상하(Superior-Inferior)방향으로 5 mm, 10 mm, 20 mm 3가지 크기의 변위로 구동하게 하였다. 팬텀 내부 표적에 EBT3 필름 2장을 교차 삽입하여 표적 움직임의 변화에 따라 사이버나이프 제조사에서 제공된 End-to-End(E2E) test를 호흡의 형태에 따라 각각 5회씩 실시하고 측정하였다. 종양 추적 시스템의 정확도는 삽입된 필름을 분석하여 표적 오차(Targeting error)로 나타내었고, 추가로 E2E test가 진행되는 동안 상관관계 오차(Correlation error)를 측정하여 분석하였다. 결 과 : 표적 오차는 정현곡선 호흡 형태일 경우 표적 움직임의 크기가 5 mm, 10 mm, 20 mm 에 따라 각각 평균 $1.14{\pm}0.13mm$, $1.05{\pm}0.20mm$, $2.37{\pm}0.17mm$이고, 갑작스런 호흡 변화 형태일 경우 각각 평균 $1.87{\pm}0.19mm$, $2.15{\pm}0.21mm$, $2.44{\pm}0.26mm$으로 분석되었다. 표적 추적에 있어 변위 벡터의 길이로 정의할 수 있는 상관관계 오차는 정현곡선 호흡 형태일 경우 표적 움직임의 크기가 5 mm, 10 mm, 20 mm 에 따라 각각 평균 $0.84{\pm}0.01mm$, $0.70{\pm}0.13mm$, $1.63{\pm}0.10mm$이고, 갑작스런 호흡 변화 형태일 경우 각각 평균 $0.97{\pm}0.06mm$, $1.44{\pm}0.11mm$, $1.98{\pm}0.10mm$으로 분석되었다. 두 호흡 형태에서 모두 상관관계 오차 값이 클수록 표적 오차 값이 크게 나타났다. 정현곡선 호흡 형태의 표적 움직임 크기가 20 mm 이상일 경우, 두 오차 값 모두 사이버나이프 제조사의 권고치인 1.5 mm 이상으로 측정되었다. 결 론 : 표적 움직임의 크기가 클수록 표적 오차 값과 상관관계 오차 값이 증가하는 경향이 있었으며, 정현곡선 호흡 형태보다 갑작스런 호흡 변화 형태에서 오차 값이 크게 나타났다. 호흡의 형태가 규칙적인 정현 곡선 형태더라도 표적의 움직임이 클수록 종양 추적 시스템의 정확도가 감소하는 것으로 판단할 수 있다. 사이버나이프 종양 추적 시스템의 알고리즘을 이용하여 치료 시행 시 환자의 기침 등으로 인하여 갑작스럽게 예측 불가능한 호흡 변화가 있는 경우 치료를 멈추고 내부 표적 확인 과정을 재실시 하여야 하며 호

태양광 모듈 온도 영향에 따른 개방전압 추종을 위한 PV 시스템의 최대 전력 점 기법

서정민(Jung-Min Seo),이우철(Woo-Cheol Lee) 전력전자학회 2021 전력전자학회 논문지 Vol.26 No.1

배터리 충방전 시스템을 위한 양방향 커플드 인덕터 인터리브드 DC-DC 컨버터 특성 연구

서정민(Jung-Min Seo),이우철(Woo-Cheol Lee) 전력전자학회 2019 전력전자학술대회 논문집 Vol.2019 No.7

자연환기와 냉방시스템을 병용한 하이브리드공조에 관한 연구

서정민(Jung-Min Seo),최영진(Young-Jin Choi),송두삼(Doo-Sam Song) 대한설비공학회 2006 대한설비공학회 학술발표대회논문집 Vol.2006 No.11

Hybrid AC system, coupled with cooling system and ventilation system with dehumidification and cooling mode in residential setting is investigated. In order to reduce the energy use for conventional cooling system, hybrid system coupled with natural ventilation seem to be promising. In this study, a concept of hybrid AC is described and the performance of the proposed systems is evaluated through physical experiment in terms of indoor environmental conditions for comfort and energy requirement under the favorable outdoor condition.

하이브리드 환기와 바닥복사냉난방을 병용한 실내 환경조절시스템의 적용성 검토

서정민(Seo Jung-Min),이중훈(Lee Joong-Hoon),송두삼(Song Doo-Sam) 대한건축학회 2008 대한건축학회논문집 Vol.24 No.11

Lately, a concern about IAQ is increasing and the demand for indoor thermal comfort is growing. These result in higher energy consumption for indoor environmental control. The hybrid ventilation system using nature power as it possible seems to reduce the energy use for ventilation and cooling. For this reason, the hybrid ventilation is widely applied in Europe and Japan. In this study, a concept of the hybrid ventilation system coupled with radiant floor heating and cooling is proposed. In this Paper, the details of hybrid ventilation system are described and the performance of the proposed systems is evaluated through physical experiment and simulation in terms of the indoor environmental control behaviors and energy saving efficiency. To analyze the possibility of indoor climate control using the hybrid ventilation system, the experiment was accomplished under intermediate season. As results, the indoor thermal environment was controlled with comfort as introducing the outdoor air when the outdoor condition was good, and the energy demand for cooling and ventilation is decreased. Based on the experimental results, the performance of the proposed system was analyzed by TRNSYS simulation in intermediate season and summer. The indoor thermal environment is controlled by radiant floor cooling mainly and the hybrid ventilation system take on a role for ventilation, night-time cooling and dehumidification under summer season. From the simulation result, energy performance of the proposed system is better than a traditional air-conditioning system. However, when outdoor humidity is high, the dehumidification load for ventilation is increased. This result suggests that the outdoor air should be introduced based on the enthalpy instead of temperature.