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신한솔 경상국립대학교 경남문화연구원 2023 남명학연구 Vol.77 No.-
A geographical book (地理志) is a work that documents all natural and human geographical phenomena on Earth. Geographical books hold value as a source for historical figures, Korean language history, legends, and census history (戶口史). The books are divided into two types based on who compiled and published them: government-published geographical books (官撰地理志), which were compiled and published systematically by the state as a source for governance with an appointed compiler, and privately published geographical books (私撰地理志), which were compiled and published by local governors or noble families. Han Yu, a scholar with no public office in the Western Gyeongsang Province, compiled two geographical books: Baekgokji (柏谷誌) and Pyeonggeoji (平居誌). Baekgok and Pyeonggeo were administrative areas under Jinju-mok at that time. Unlike other geographical books based on eup (an administrative unit), it is worth noting that these books were based on myeon (面) (an administrative unit larger than eup). This paper looks into the sections and composition of Baekgokji, identifies its differences from other geographical books, and describes the value of the book. Furthermore, the author examines how things were documented in Baekgokji. While Baekgokji is seemingly no different from other geographical books in terms of its format, its contents clearly set it apart. The book objectively describes the social realities of the Donghak Peasant Revolution and the sachang scheme, in which noble landlords hoarded grain and lent it to the common people during the Joseon dynasty. It represents these realities as literary works, instead of simply listing them. In addition, it is notable that figures from the Nammyeong School account for most of the historical figures covered by the book, and there are many records related to Nammyeong across the various sections. This shows that the book was intended to promote Nammyeong as a member of the Nammyeong School and highlight that Baekgok, which contains many records about Nammyeong and the Nammyeong School, made a name for itself in the world compared to Deoksan. Baekgokji can be used as a source for the history of censuses and figures (戶口史 and 人物史) in the area of Baekgok at that time, unlike Jinyangji and Jinjuguneupji. The book also has value as a reference as it further enriches the local history of Baekgok. By showing every corner of Baekgok, the book also provides additional information that cannot be found in other historical references. Therefore, Baekgokji is of significant value.
수부에 발생한 간과된 페인트 총 손상의 치료 결과: 치료가 간과된 예
신한솔,차수민,신현대 대한수부외과학회 2019 대한수부외과학회지 Vol.24 No.3
Purpose: We report a retrospective case series of patients who received delayed treatment for a paint gun hand injury.Methods: From January 2001 to December 2016, 13 patients injured from the fingertip to the wrist and treated surgically after a 48-hour delay was evaluated. Basic demographic characteristics, injury mechanism, lesion, time-to-surgery, and degree of injury were investigated. The visual analogue scale (VAS) scores; Disabilities of the Arm, Shoulder, and Hand (DASH) scores; and Strickland evaluations were analyzed at least 2 years after injury.Results: The surgery was performed at a mean 59.7 hours after injury. Soft tissue coverage was performed at a mean 8.2 days after the initial incision and debridement, and simple skin closure and full-thickness skin grafting were performed in 1 and 7 patients, respectively. Moreover, cross-finger flap, neurovascular island flap, retrograde island flap, and groin flap were used in one, one, one, and two patients, respectively. The mean follow-up period was 28.2 months, and the mean VAS and DASH scores were 0.92 and 36.3, respectively, whereas the outcomes of the Strickland evaluations were ‘good’ in two patients, ‘fair’ in seven patients, and ‘poor’ in four patients.Conclusion: The recent mechanical development of paint guns has led to an increase in high-pressure injection injuries and resulted in greater accidental toxic paint injection into the fingers and hand. Thus, the toxic and inflammatory re-sponse progresses rapidly to acute compartment syndrome and necrosis, and delayed treatment is therefore associated with poor clinical outcomes. 목적: 페인트 총에 의한 수부 손상 예 중에서 초기 치료가 지연된 환자들을 대상으로 후향적 보고를 하고자 한다.방법: 2001년 1월부터 2016년 12월까지 페인트 총 손상을 받고 48시간 이후에 수술적 치료를 시행한 13명을 대상으로 하였다. 인구학적 인자, 기전 또는 정황, 수상 부위, 수술까지의 시간, 손상 깊이 등을 파악하였다. 수상 후 최소 2년에 visual analogue scale (VAS) 점수, Disabilities of the Arm, Shoulder, and Hand (DASH) 점수, Strickland 평가 등을 파악하였다.결과: 수술까지 평균 59.7시간이었고, 첫 절개 및 변연 절제술 후 평균 8.2일 후 피복 수술을 시행하였으며, 단순 피부 봉합은 1예, 전층 피부 이식은 7예에서 시행했다. 교차 수지 피판 1예, 신경혈관 부착 도서형 피판 1예, 역행성 도서형 피판 1예, 서혜부 피판 2예 시행하였다. 평균 추시 기간은 28.2개월이었으며 평균 VAS 점수는 0.92, 평균 DASH 점수는 36.3, Strickland method 분포는 우수(good) 2예, 양호(fair) 7예였다.결론: 최근 페인트 총의 기계적 발달로 많은 독성 페인트가 주입되어 자체 독성 및 염증 반응 등으로 급성 구획 증후군, 조직 괴사가 빠른 시간 내에 발생한다. 치료가 지연될수록 필연적으로 불량한 임상 결과를 초래할 것으로 판단된다.
송전제약과 등가운전시간을 고려한 장기 예방정비계획 최적화에 관한 연구
신한솔(Hansol Shin),김형태(Hyoungtae Kim),이성우(Sungwoo Lee),김욱(Wook Kim) 대한전기학회 2017 전기학회논문지 Vol.66 No.2
Most of the existing researches on systemwide optimization of generator maintenance scheduling do not consider the equivalent operating hours(EOHs) mainly due to the difficulties of calculating the EOHs of the CCGTs in the large scale system. In order to estimate the EOHs not only the operating hours but also the number of start-up/shutdown during the planning period should be estimated, which requires the mathematical model to incorporate the economic dispatch model and unit commitment model. The model is inherently modelled as a large scale mixed-integer nonlinear programming problem and the computation time increases exponentially and intractable as the system size grows. To make the problem tractable, this paper proposes an EOH calculation based on demand grouping by K-means clustering algorithm. Network congestion is also considered in order to improve the accuracy of EOH calculation. This proposed method is applied to the actual Korean electricity market and compared to other existing methods.
랜덤 포레스트와 데이터 전처리를 이용한 냉동기 기계학습 모델 개발
신한솔(Shin, Han-Sol),박철수(Park, Cheol-Soo) 대한건축학회 2017 大韓建築學會論文集 : 構造系 Vol.33 No.9
It has been widely acknowledged that a machine learning model can be used as a surrogate to a first-principle based dynamic simulation model. The accuracy and computation efficiency of a machine learning model is dependent on a combination of input variables. The random forest algorithm, one of the machine learning algorithms, can calculate a variable importance that determines the influence of each input variable on the output of the model. In this study, the authors developed three random forest models of a chiller in an existing building as follows: (1) Model A consisting of 12 measured variables from BEMS data, (2) Model B consisting of 2 measured input variables plus 4 new variables constructed by random selection, and (3) Model C consisting of 4 measured input variables plus 2 new variables constructed based on a physics-based equation. The CVRMSE of the three models are 8.56%, 5.44%, and 4.28%, respectively. The findings of this study can be summarized threefold: (1) all three random forest models are good enough to describe the dynamics of the chiller system, (2) the random forest machine learning algorithm can be used to develop a simulation model of the system, and (3) an accurate model can be constructed either by the random selection or the physics-based equation, even when a few input variables are given.