호흡동조 정위체부방사선치료에서 Gated Cone-beam CT의 유용성 평가

홍성윤,이충환,박제완,송흥권,윤인하,Hong sung yun,Lee chung hwan,Park je wan,Song heung kwon,Yoon in ha 대한방사선치료학회 2022 대한방사선치료학회지 Vol.34 No.-

Purpose: Conventional CBCT(Cone-beam Computed-tomography) caused an error in the target volume due to organ movement in the area affected by respiratory movement. The purpose of this paper is to evaluate the usefulness of accuracy and time spent using the Gated CBCT function, which reduces errors when performing RGRT(respiratory gated radiation therapy), and to examine the appropriateness of phase. Materials and methods: To evaluate the usefulness of Gated CBCT, the QUASAR^TM respiratory motion phantom was used in the Truebeam STx^TM. Using lead marker inserts, Gated CBCT was scaned 5 times for every 20~80% phase, 30~70% phase, and 40~60% phase to measure the blurring length of the lead marker, and the distance the lead marker moves from the top phase to the end of the phase was measured 5 times. Using Cedar Solid Tumor Inserts, 4DCT was scanned for every phase, 20-80%, 30-70%, and 40-60%, and the target volume was contoured and the length was measured five times in the axial direction (S-I direction). Result: In Gated CBCT scaned using lead marker inserts, the axial moving distance of the lead marker on average was measured to be 4.46cm in the full phase, 3.11cm in the 20-80% phase, 1.94cm in the 30-70% phase, 0.90cm in the 40-60% phase. In Fluoroscopy, the axial moving distance of the lead marker on average was 4.38cm and the distance on average from the top phase to the beam off phase was 3.342cm in the 20-80% phase, 3.342cm in the 30-70% phase, and 0.84cm in the 40-60% phase. Comparing the results, the difference in the full phase was 0.08cm, the 20~80% phase was 0.23cm, the 30~70% phase was 0.10cm, and the 40~60% phase was 0.07cm. The axial lengths of ITV(Internal Target Volume) and PTV(Planning Target Volume) contoured by 4DCT taken using cedar solid tumor inserts were measured to be 6.40cm and 7.40cm in the full phase, 4.96cm and 5.96cm in the 20~80% phase, 4.42cm and 5.42cm in the 30~70% phase, and 2.95cm and 3.95cm in the 40~60% phase. In the Gated CBCT, the axial lengths on average was measured to be 6.35 cm in the full phase, 5.25 cm in the 20-80% phase, 4.04 cm in the 30-70% phase, and 3.08 cm in the 40-60% phase. Comparing the results, it was confirmed that the error was within ±8.5% of ITV Conclusion: Conventional CBCT had a problem that errors occurred due to organ movement in areas affected by respiratory movement, but through this study, obtained an image similar to the target volume of the setting phase using Gated CBCT and verified its usefulness. However, as the setting phase decreases, the scan time was increases. Therefore, considering the scan time and the error in setting phase, It is recommended to apply it to patients with respiratory coordinated stereotactic radiation therapy using a wide phase of 30-70% or more.

기계학습을 이용한 택배 고객의 소리 분류

홍성윤 ( Seong-yun Hong ) 한국정보처리학회 2012 한국정보처리학회 학술대회논문집 Vol.19 No.1

국내 택배시장 규모는 매출 3조원 이상, 물량 13억 상자 이상을 처리하고 있다. 2000 년 6천억원에서 불과 10 년 사이에 500% 이상 확대되었다. 그에 반해 소비자들의 불만 역시 증가하였다. 따라서 현재의 수작업 VOC 분류 방식으로는 적절한 대응에 한계가 있을 수 밖에 없다. 이 논문에서는 효율적인 택배불만 처리를 위해서 불만의 종류와 정도를 기계학습을 이용하여 자동분류 하는 과정 및 결과를 기술한다. 약 93,000 건의 VOC(voice of customer)를 대상으로 학습 데이터를 구축하고 여러 자질 선택 기법을 비교하였으며, 기존의 다양한 문서 자동 분류 방법들을 적용해 보았다. 실험 결과 지지벡터기계가 가장 좋은 성능을 보였고, 각각의 F-measure 값은 불만의 정도는 83.1%, 불만의 종류는 75.9% 로 측정되었다.

又峰趙熙龍의 繪畵觀

洪性潤(Hong Sungyoon) 미술사연구회 2007 미술사연구 Vol.- No.21

This thesis aims to consider the theoretical view of painting and achieve an understanding of the Chinese literary art of Jo Huiryong(1789~1866), a painter of the middle-class literati in the first half of the 19<SUP>th</SUP> century, through his writings. As the literary activities of the middle class gained pace in the 19th century, they also came to play an increasing role in the world of painting, among whom Jo Huiryong was a leading figure. The study of his view of painting is thought to have contributed to the comprehension of the paintings of not only Jo Huiryong but also of middle-class literary society of that time, as well as the painting phenomenon of the nineteenth century in general. In the 19<SUP>th</SUP> century, Chinese culture reached Korea as a result of more active interchanges with China. The middle classes had the economic and intellectual freedom to learn about and enjoy Chinese books and paintings by themselves. Such conditions provided them with an opportunity to understand the current of Chinese painting and essays on paintings. The raised consciousness of the literary culture of the Ming and Qing Dynasties achieved through such channels helped them to understand the trend of the Joseon Dynasty's artistic milieu. Jo Huiryong was also able to access Chinese books and paintings, something which can be confirmed by many of the comments in his writings about Chinese paintings and the related theories. The Chinese paintings he saw were principally those of the Qing Dynasty rather than those dating from more earlier times, mirroring the exchange that had taken place between Joseon and Qing since the 18th century as a result of the Yeonam circle, as well as the influence of Kim Jeonghui. Jo Huiryong referred to such books on art theory as Xuanhe Huapu(宣和畵譜), Tuhui Baojian(圖繪寶鑑) and Guochao Huahuilu(國朝畵徵錄), all of which were representative books on critical painting including compact biographies of painters. He referred to painters of the pre-Yuan Dynasty as Xuanhe Huapu and Tuhui Baojian, and to painters of the Ming and Qing periods as Guochao Huahuilu. Apart from these books, Jo Huiryong quoted such critical essays on painting as Nigulu(?古錄), which was written by Chen Jiru of the Ming Dynasty, Banqiao Tihua(板橋題畵) by Zheng Xie of the Qing Dynasty, and Pushan lunhua(浦山論畵) by Zhang Geng. The book that Jo Huiryong mentioned most frequently was Chen Jiru's Nigulu. Jo Huiryong also cited many short essays of the Late Ming and Early Qing Dynasty, including Nigulu. Here, we can see that the style of literary culture prevalent during the Late Ming Dynasty, which was brought into the capital by Joseon noblemen during the eighteenth century, survived until the nineteenth century. What has drawn considerable attention in building up Jo Huiryong's view of painting is how he was affected by and distinguished from Kim Jeonghui from an artistic viewpoint. They had a close relationship in the aspect of literature and painting. According to many records, the relationship between Jo Huiryong and Kim Jeonghui continued throughout their lives, and it becomes clear that this relationship was a major influence on Jo Huiryong's artistic activity. Jo Huiryong's view of painting was even further developed based on Kim Jeonghui's theory. Jo Huiryong's theory on paintings was explored here in the light of two aspects: namely the usefulness and the creation of paintings. As for their usefulness, Jo Huiryong defined paintings that are valuable as an expression of the artist's thoughts. Jo Huiryong valued the activity of creation in itself as well. He also thought that paintings could contribute to human longevity and that they reflected the Taoist hermit ideologies that were then popular among middle-class society. The discussion of creative activity meant defining how a painter could reveal his or her thoughts through the painting. Jo Huiryong thought highly of “shen-li”(神理), meaning the natural revelation of the artist's

문화 : 조희룡의 저술에 보이는 중국화논서

홍성윤 ( Sung Yoon Hong ) 온지학회 2004 溫知論叢 Vol.10 No.-

세라마이드의 액정에멀젼 내 고온 제형 안정성 연구

홍성윤 ( Sung Yun Hong ),장유진 ( Yujin Chang ),이준배 ( Jun Bae Lee ),박천호 ( Chun Ho Park ),박명삼 ( Myung Sam Park ) 대한화장품학회 2019 대한화장품학회지 Vol.45 No.1

본 연구는 세테아릴 알코올, 세틸 팔미테이트, 소르비탄 팔미테이트, 소르비탄 올리베이트, 세라마이드 등을 이용하여 제조한 액정에멀젼의 다층구조에 따른 강화된 계면막에 의해 제형의 안정성이 확보됨을 확인하였다. 편광 현미경을 통해 제형 내 몰타 크로스(maltese cross) 무늬를 확인하고, cryo-SEM을 이용하여 다층구조가 형성되었음을 확인하였다. 소각 X선 산란법(SAXS)을 이용하여 라멜라 구조 생성여부를 확인하였으며, 점도계를 이용하여 점도변화를 확인하고 정적 광 산란법(SLS)을 이용하여 입도 분포를 확인하여 액정에멀젼의 제형 안정성을 입증하였다. We introduce to prepare liquid crystalline emulsion composed of cetearyl alcohol, cetyl palmitate, sorbitan palmitate, sorbitan olivate, ceramide and so on which can enforce interface between oil-based particle and water phase. In terms of structural analysis, the stability of the liquid crystalline emulsion including ceramide, which is immisible ingredient, at high temperature was proved by polarized microscope, cryo-SEM, small-angle x-ray scattering, in addition to viscometer and static light scattering by physical analysis.

검도지도자의 커뮤니케이션 스타일과 라포 및 수련만족도 간의 구조적 관계

홍성윤(Hong, Sung-Yoon),신승호(Shin, Seung-Ho) 한국체육과학회 2020 한국체육과학회지 Vol.29 No.1

The purpose of this study was to determine the structural relationships among the Kumdo instructors’ communication style, rapport and training satisfaction. Furthermore, it was to suggest methods to manage the Kumdo club and to ensure competitiveness by providing information for the Kumdo instructor’s effective teaching method and also the human resource management. In order to achieve the purpose of this study, subjects were collected from 250 Kumdo learners of 10 Kumdo clubs in metropolitan area by using convenience sampling method. Among the 250 questionnaires of Kumdo learners, 248(99.2%) of them were used for the final analysis. By using Windows for SPSS 21.0 and AMOS 21.0, methods such as descriptive statistics, reliability analysis, correlation analysis, confirmatory factor analysis, and structural equation model were conducted for data analysis. Consequently, the result of this study was as follows. First, among the communication styles of Kumdo instructors, trust, cooperative and professional type of communication styles had a significant impact on rapport-building between Kumdo instructors and learners. Second, trust and cooperative type of communication styles had a significant impact on the training satisfaction of Kumdo learners. Third, the rapport between Kumdo instructors and the learners had a significant impact on training satisfaction.

한국전력의 동북아 수퍼그리드 구축현황 및 향후 과제

정규원(Kyu-won Jeong),홍광희(Kwang-hee Hong),홍성윤(Sung-yun Hong),박갑호(Kab-ho Park),김홍균(Hong-gyun Kim),문봉수(Bong-soo Moon) 대한전기학회 2014 대한전기학회 학술대회 논문집 Vol.2014 No.7

누룩에서 분리한 우수균주에 의한 좁쌀주의 양조특성

유철훈,홍성윤,고정삼,Yu, Cheol-Hun,Hong, Sung-Yeun,Koh, Jeong-Sam 한국응용생명화학회 2002 한국농화학회지 Vol.45 No.3

제주민속 좁쌀주의 품질향상을 위하여 누룩으로부터 분리한 우수균주를 이용하여 양조특성을 검토하였다. 양조효모로 Saccharomyces sp Y5-1를, 그리고 당화균으로 Aspergillus oryzae M6-1, Aspergillus awamori 6970, Aspergillus usamii mut. shirousamii 6959를 각각 사용하였다. 좁쌀주의 양조에서 발효기간 중에 총산, 가용성 고형물, 색도, 에탄올 함량은 증가하였다. 에탄올 함량은 Aspergillus awamori 6970, Aspergillus usamii mut. shirousamii 6959 누룩구가 각각 10.6%, 10.1%로 높았다. Citric acid는 발효 $1{\sim}2$일에만 검출되었고, tartaric acid는 발효 1일에 시판 누룩구에서만'51.8 ppm 검출되었다. 유기산 중에 대부분을 차지하는 lactic acid는 Aspergillus awamori 6970 누룩구, acetic acid는 시판 누룩구에서 가장 많았다. 발효 중에 xylose, arabinose, glucose, maltose가 검출되었고, glucose와 xylose가 많았다. 휘발성 향기성분으로는 acetone, ethyl acetate, methanol, ethanol, n-propanol, iso-butanol, iso-amyl alcohol이 검출되었다. 좁쌀 주의 관능검사 결과, 색과 맛에서 Aspergillus usamii mut. shirousamii 누룩구가 좋았으며, 향기에서는 서로 비슷한 기호도를 나타내었다. In order to improve the quality of foxtail millet wine, zymological properties by isolated strains from Nuruk were investigated. Saccharomyces sp Y5-1 as brewing yeast, Aspergillus sp. M6-3, Aspergillus awamori 6970, and Aspengillus usamii mut. shirousamii 6959 (KCTC) as saccharifying molds were used, respectively. Acid content, soluble solids, color (b) and alcohol contents were increased during fermentation. Ethanol concentration of millet wine made with Nuruk by Aspergillus awamori 6970 and Aspergillus usamii mut. shirousamii 6959 were higher than the other, 10.6 and 10.1% respectively. Citric acid was only detected on $1{\sim}2$ day starting fermentation. Oxalic acid, lactic acid and acetic acid of millet wine were high in the wine made of Nuruk by Aspergillus usamii mot. shirousamii 6959, Aspergillus awamori 6970 and traditional Nuruk, respectively. During fermentation, glucose and xylose was higher than the others. Xylose was increased, but most of other sugar were decreased during fermentation. Acetone, ethyl acetate, methanol, ethanol, n-propanol, iso-buthanol and iso-amyl alcohol were detected In the wine made with Nuruk by Aspergillus awamori and Aspergillus usamii mut. shirousamii, iso-imyl alcohol and ethanol were high. On sensory evaluation, the wine made with Nuruk by Aspergillus usamii mut. shirousamii was the best on color and taste.

한국산 어류에 기생하는 Nothobomolochus ( Poecilostomatoida , Bomolochidae ) 속 2 종

최상덕,홍성윤,서해립 ( Sang Duk Choi,Sung Yun Hong,Hae Lip Suh ) 한국수산과학회 1994 한국수산과학회지 Vol.27 No.6

Two species of the parasitic copepod were recovered from two Korean fishes, Lateolabrax japonicus (Cuvier and Valenciennes) and Pampus argenteus (Euphrasen) taken from Yosu Bay Korea. The present paper contains redescription of two species of Nothobomolochus of Bomolochidae. Both species, N lateolabracis (Yamaguti and Yamasu) and N. triceros (Basset-Smith), are newly recorded from the Korean water. N. lateolabracis and N. triceros were found on the L. japonicus and P. argenteus, respectively.

HOOO-(H₂O)_n (n=1~5) 클러스터의 구조와 에너지에 대한 이론적 연구

김종민,홍성윤,김승준,Kim, Jong-Min,Hong, Sung-Yoon,Kim, Seung-Joon 대한화학회 2015 대한화학회지 Vol.59 No.5

HOOO-(H₂O)_n (n=1~5) 클러스터에 대해서 다양한 기저집합과 밀도 범함수 이론(DFT) 및 순 이론(ab initio) 방법을 사용하여 가능한 여러 구조를 최적화하고 결합에너지와 조화진동수를 계산하였다. HOOO 단량체의 경우에는 CCSD(T) 이론 수준에서 trans 구조가 cis 구조보다 열역학적으로 더 안정한 것으로 계산되었다. HOOO-(H₂O)_n 클러스터에 대해서는 B3LYP/aug-cc-pVTZ와 CAM-B3LYP/aug-cc-pVTZ 이론 수준에서 분자 구조를 최적화하고 열역학적으로 가장 안정한 분자구조를 예측하였다. HOOO-H₂O 클러스터의 결합에너지는 MP2//CAM-B3LYP 한 점 에너지 계산에서 영점 진동에너지(ZPVE)와 바탕 집합 중첩에러(BSSE)까지 모두 보정한 후 6.05 kcal/mol로 계산되었으며, n=2-5의 경우에는 물 분자의 수가 증가 할수록 물분자 1개 당 평균 결합에너지는 증가하여 약 7.2 kcal/mol의 값으로 수렴하였다. The DFT and ab initio calculations have been performed to elucidate hydrogen interaction of HOOO-(H₂O)_n (n=1~5) clusters. The optimized geometries, harmonic vibrational frequencies, and binding energies are predicted at various levels of theory. The trans conformer of HOOO monomer is predicted to be thermodynamically more stable than cis form at the CCSD(T) level of theory. For HOOO-(H₂O)_n clusters, the geometries are optimized at B3LYP/aug-cc-pVTZ and CAM-B3LYP/aug-cc-pVTZ levels of theory. The binding energy of HOOO-H₂O cluster is predicted to be 6.05 kcal/mol at the MP2//CAM-B3LYP/ aug-cc-pVTZ level of theory after zero-point vibrational energy (ZPVE) and basis set superposition error (BSSE) correction. The average binding energy per H₂O is increased according to adding a H₂O moiety in HOOO-(H₂O)_n clusters up to 7.2 kcal/mol for n=5.