북한산 이계구곡(耳溪九曲)의 위치비정과 집경(集景) 특성

정우진,노재현,이희영,Jung, Woo-Jin,Rho, Jae-Hyun,Lee, Hee-Young 한국전통조경학회 2017 한국전통조경학회지 Vol.35 No.3

본 연구는 이계 홍양호가 설정하고 그의 손자 관암 홍경모가 경영한 이계구곡의 향유거점을 문헌 및 현지조사를 통해 실증적으로 추적하는 한편, 구곡의 형식 및 집경방식에 나타난 특징을 검토하는 것이다. 연구의 결과는 다음과 같다. 1. 우이동은 조선시대에 도성의 영역에 속한 땅이자 지금도 행적구역상 서울특별시에 속한 곳이다. 따라서 이계구곡은 예나 지금에나 수도에 있는 유일한 구곡이었다는 특별한 의미로 받아들여진다. 이계구곡은 우이천 상류의 만경폭을 제1곡으로 시작하여 계곡을 따라 내려오며 제2곡 적취병, 제3곡 찬운봉, 제4곡 진의강, 제5곡 옥경대, 제6곡 월영담, 제7곡 탁영암, 제8곡 명옥탄, 제9곡 재간정으로 구성된다. 이중에서 만경폭, 찬운봉, 옥경대는 그 위치를 확정할 수 있을 정도로 특징적인 경물상이 명확히 드러나 있었으며, 진의강, 월영담, 명옥탄, 재간정 터는 구곡기의 묘사와 현지의 지표상황을 통해 유력한 추정지를 찾을 수 있었다. 그러나 적취병, 탁영암의 경우 비근한 영역 내에 기문의 내용과 유사한 복수의 지점들이 나타났는데, 지형 경관 경물의 현황을 종합적으로 고려하여 제1의 추정지를 판단하였다. 이로서 1곡에서 9곡까지 총거리 2.1km의 선적 경로와 구조를 파악할 수 있었으며, 이러한 점은 구곡이 5리(약 1.96km)에 지나지 않는다는 관암의 설명과도 근사하다. 2. 18세기 말에 설정된 이계구곡은 홍양호가 우이동을 풍산 홍씨의 소유로 귀속시킨 뒤 선영의 묘소가 있는 터전을 가문의 공간으로 만드는 일련의 작업에서 비롯되었다. 이계구곡은 구곡이 상류에서부터 하류방향으로 전개된다는 점과, 거점지가 8곡에 위치하는 등 구곡의 일반적인 형식과 적지 않은 차이점을 나타내고 있었다. 이는 가문의 영역을 우이동 초입에 위치한 타 가문의 세력권과 분리시켜 우이동을 점유하려는 원심적 구성으로 해석되지만, 한편으로 우이동을 대표하는 경물인 미륵폭포[만경폭]부터 계곡의 주요 승경에 곡의 순서를 정하고 8곡에 위치한 자신의 거처를 사실상 구곡의 지향점으로 삼는 구심적 공간 만들기의 결과로도 판단된다. 3. 이계구곡에는 여타의 구곡에 비해 설정자와 경영자가 남긴 기문과 시문이 다량 제작된 반면, 구곡도, 각자 등 동반되는 시각적 매체가 전무하다. 그러나 관암의 문집에 수록된 "이계구곡대자첩(耳溪九曲大字帖) 발미(跋尾)"에는 각자를 새기려고 했던 시도가 있었음이 나타나 있다. 본 연구는 송시열 글씨로 알려진 국립중앙박물관 소장 미공개 필첩이 홍양호의 구곡명 유묵을 성첩한 "이계구곡대자첩" 이었음을 확인할 수 있었다. The purpose of this research is to empirically trace the junctures of Yigye-gugok managed by Gwan-am Hong Gyeong-mo, a grandson of Yigye Hong Yang-ho who originally designed Yigye-gugok, while reviewing the features of the forms and patterns of gugok. The results of the research are as follows. 1. Ui-dong was part of the domain of the capital during the Chosun dynasty, which also is located in the city of Seoul as a matter of administrative zone. Likewisely, Yigye-gugok is taken as a special meaning for it was one and only gugok. Starting with Mangyeong Waterfall as the $1^{st}$ gok, Yigye follows through the $2^{nd}$ gok of Jeokchwibyeong Rock, the $3^{rd}$ gok of Chanunbong Peak, the $4^{th}$ gok of Jinuigang Rock, the $5^{th}$ gok of Okkyeongdae Rock, the $6^{th}$ gok of Wolyeongdam Pond, the $7^{th}$ gok of Tagyeongam Rock, the $8^{th}$ gok of Myeongoktan Stream, and the $9^{th}$ gok of Jaeganjeong Pavilion. Of these, Mangyeong Waterfall, Chanunbong Peak, and Okkyeongdae Rock are distinct for their locations in as much as their features, while estimated locations for Jinuigang Rock, Wolyeongdam Pond, Myeongoktan Stream, and Jaeganjeong Pavilion were discovered. However, Jeokchwibyeong Rock and Tagyeongam Rock demonstrated multiple locations in close resemblance to documentary literatures within secretive proximity, whereas geography, scenery, and sighted objects were considered to evaluate the 1st estimated location. Through these endeavored, it was possible to identify the shipping routes and structures for the total distance of 2.1km running from the $1^{st}$ gok to the $9^{th}$ gok, which nears Gwanam's description of 5ri(里), or approximately 1.96km for gugok. 2. Set towards the end of the $18^{th}$ century, Yigye-gugok originated from a series of work shaping the space of Hong Yang-ho's tomb into a space for the family. Comparing Yigye-gugok to other gugoks, numerous differences are apparent from beyond the rather more general format such as adjoining the $8^{th}$ gok while paving through the lower directions from the upper directions of the water. This gives rises to the interpretation such that Yigye-gugok was positioned to separate the doman of the family from those of the other families in power, thereby taking over Ui-dong. Yet, the aspect of the possession of the space lends itself to the determination that the location positioned at the $8^{th}$ gok above Mangyeongpok Waterfall representing Wooyi-dong was a consequence of the centrifugal space creation efforts. 3. While writings and poetic works were manufactured in such large quantities in Yigye-gugok whose products of setters and managers seemed intended towards gugok-do and letters carved on the rocks among others, there is yet a tremendous lack of visual media in the same respect. 'Yigye-gugok Daejacheop' Specimens of Handwriting offers the traces of Gwanam's attempts to engrave gakja at the food of Yigye-gugok. This research was able to ascertain that 'Yigye-gugok Daejacheop' Specimens of Handwriting was a product of Hong Yang-ho's collections maintained under the auspices of the National Central Museum, which are renowned for Song Shi-yeol's penmanship.

원발성 간혈관육종의 임상적 고찰: 8예 분석

허창재 ( Chang Jae Hur ),민보람 ( Bo Ram Min ),이유진 ( Yoo Jin Lee ),장병국 ( Byung Kuk Jang ),황재석 ( Jae Seok Hwang ),김은수 ( Eun Soo Kim ),박경식 ( Kyung Sik Park ),조광범 ( Kwang Bum Cho ),강유나 ( Yu Na Kang ),정우진 ( Woo 대한소화기학회 2015 대한소화기학회지 Vol.65 No.4

Background/Aims: Hepatic angiosarcoma, a rare and aggressive liver malignancy, is difficult to diagnose because of a lack of specific clinical features. The clinical and radiological features of patients with histologically confirmed hepatic angiosarcoma were examined. Methods: Among 2,336 patients diagnosed with primary hepatic carcinoma at Keimyung University Dongsan Medical Center (Daegu, Korea) between May 2002 and February 2012, eight (0.03%) with histologically confirmed primary hepatic angiosarcoma were included. The patterns of disease diagnosis, tumor characteristics, treatment responses, and prognoses were reviewed retrospectively. Results: Median age was 66 years-old (range, 41-80 years). Four patients were male. Five patients were compulsive drinkers. All patients had no HBsAg and anti-HCV. Initial radiologic diagnoses revealed primary hepatic angiosarcoma (n=2), hepatocellular carcinoma (n=2), hemangioma (n=2), and hepatic metastatic carcinoma (n=2). Definitive diagnoses were made by percutaneous needle biopsies in seven patients and surgical resection in one patient. At the time of the initial diagnosis, extrahepatic metastases were detected in three patients (37.5%). Metastatic sites included the spleen and lung, pericardium, and bone, in one patient each. Two patients underwent conservative treatments. The remaining patients underwent surgical resection (n=1), transcatheter arterial chemoembolization (n=1), and systemic chemotherapy (n=4). The median survival period was 214 days (range, 21-431 days). Conclusions: Hepatic angiosarcoma is a highly progressive disease with a poor prognosis. Detailed studies including histological examinations are essential to facilitate early diagnosis of the disease. (Korean J Gastroenterol 2015;65:229-235)

소나 돔 음향창 시편 투과손실 측정/분석 방법 고찰

정우진(Jung, Woo-Jin),한승진(Han, Seung-Jin),김원호(Kim, Won-Ho),신구균(Shin, Ku-Kyun),전재진(Jeon, Jae-Jin) 한국소음진동공학회 2006 한국소음진동공학회 논문집 Vol.16 No.7

Knowledge of acoustic transmission loss of acoustic window material has a great importance for the sonar performance in ship. The purpose of this study was to investigate the measurement and analysis method for the acoustic transmission loss of the acoustic window materials for sonar dome. The measurement and analysis were carried out in water with GRP material. Transmission losses were calculated based on integrated direct and transmitted signals. The experimental setup enabled to vary the angle of incidence. Thus the transmission loss data could be expressed as the function of frequency and angle of rotation. In this paper, diffraction effect of incident angle, size of specimen with test material, transmission analysis method and multiple waves as incident acoustic signal were discussed.

C 함량이 다른 A487 주강품의 열처리 조건에 따른 기계적 및 부식 특성

정우진 ( Woo Jin Jung ),정대호 ( Dae Ho Jeong ),이영철 ( Young Cheol Lee ),이재현 ( Jae Hyun Lee ),김상식 ( Sang Shik Kim ) 한국주조공학회 2015 한국주조공학회지 Vol.35 No.4

The effects of quenching and tempering temperatures on the tensile, impact and corrosion properties of A487 alloy cast with different C contents of 0.16, 0.19 to 0.23 wt.% were examined. The impact tests were conducted at 25℃ and -60℃ and the immersion test was performed using 3.5% NaCl solution for 14 days. The quenching temperature affected the mechanical properties of A487 alloy cast, while the magnitude of change varied depending on the C content. The increase in tempering temperature showed the typical trend of decreasing tensile strength and increasing impact properties. The change in quenching and tempering temperature in this study did not affect the corrosion properties of A487 alloy significantly. The change in mechanical and corrosion properties of A487 with different C contents was discussed based on the microstructural and fractographic observation.

탄성지지된 가동코일형 능동마운트의 성능 분석

정우진(Woo-Jin Jung),배수룡(Soo-Ryong Bae),전재진(Jae-Jin Jeon) 한국소음진동공학회 2014 한국소음진동공학회 학술대회논문집 Vol.2014 No.10

Underwater radiated noise is one of the vital factors in underwater weapon systems like submarine. A passive elastic mount is an effective reduction method for the vibration from a shipboard machinery transmitted to the hull which is radiated as noise outside the hull. A passive elastic mount shows the limitation on the vibration reduction and needs multi stage mounting system including double stage one to meet the required underwater radiated noise criteria. It is necessary for the multi stage mounting system to consider the large displacement in the underwater shock explosion. So it is difficult to apply the multi stage mounting system in submarine because of space limitation. Also recent navy sonar system are trying to have the capability to detect the ship-borne acoustic signals in the low frequency range. An alternative to the passive mount is an active mount with moving-coil type electromagnetic actuator based on a conventional rubber mount in the low frequency range. In the previous paper, 4 active mounts with moving-coil type electromagnetic actuator based on the rubber mount were installed on the hard floor of the facility, which means no consideration on the elastic foundation effect for the control of the active mounts was taken into account. In this study, an experimental performance analysis on the active mount was carried out using 4 active mounts installed on the cylindrical structure to investigate the elastic foundation effect.

방사효율과 방사방향 계수에 대한 새로운 산출기법 연구

정우진(Woo-Jin Jung),이종주(Jong-Ju Lee),강명환(Myung-hwan Kang),전재진(Jae-Jin Jeon) 한국소음진동공학회 2014 한국소음진동공학회 논문집 Vol.24 No.2

소나 돔 음향창 시편 투과손실 측정/분석 방법 고찰

정우진(Jung Woo-Jin),한승진(Han Seung-Jin),김원호(Kim Won-Ho),신구균(Shin Ku-Kyun),전재진(Jeon Jae-Jin) 한국소음진동공학회 2006 한국소음진동공학회 학술대회논문집 Vol.2006 No.5

방사효율과 방사방향 계수 산출기법 연구

정우진(Woo-Jin Jung),강명환(Myung-hwan Kang),이종주(Jong-Ju Lee),전재진(Jae-Jin Jeon) 한국소음진동공학회 2013 한국소음진동공학회 학술대회논문집 Vol.2013 No.10

Underwater radiated noise is the key in acoustic stealth performance of modern naval ships. The underwater radiated noise predicted by the hull vibration with radiation efficiency cannot give the information of radiation pattern which is essential to the analysis of detection possibility by enemy and to improve the operational performance of the naval ship. The radiation pattern of underwater radiated noise is able to be obtained with radiation efficiency and radiation direction coefficient. In this paper, a new method to extraction the radiation efficiency and radiation direction coefficient is suggested and proved with the simulation and experiment by using cylindrical shell of 70cm diameter in air

COSINE 급수를 이용한 원통형 셸의 유체 영향계수 해석

정우진(Woo-Jin Jung),전재진(Jae-Jin Jeon),이현곤(Hun-Gon Lee) 한국소음진동공학회 1995 한국소음진동공학회 학술대회논문집 Vol.1995 No.5

심층 신경망 기반 효율적인 단일 영상 초해상도 복원 기법

정우진(Woojin Jeong),양현석(Hyeon Seok Yang),한복규(Bok Gyu Han),심재준(Jae Jun Sim),박세진(Sejin Park),박진욱(Jin Wook Park),이종민(Jong Min Lee),문영식(Young Shik Moon) 대한전자공학회 2018 전자공학회논문지 Vol.55 No.6

단일 영상 초해상도 복원은 하나의 저해상도 영상에서 고해상도 영상을 복원하는 과정이다. 최근 깊은 인공 신경망 기술이 발전함에 따라 단일 영상 초해상도 복원에서도 깊은 인공 신경망 기술이 성과를 나타냈다. 본 논문은 단일 영상 초해상도 복원을 위해 깊은 인공 신경망 기술을 효율적으로 적용하는 방법에 대해 연구하였으며, 네트워크 내부 확대 기법, L1 손실 함수의 사용, 잔차 학습 구조를 통해 기존 기법보다 효율적으로 영상 복원하는 기법을 제안한다. 제안하는 방법은 기존 방법보다 화질은 PSNR기준으로 0.57㏈ 만큼 우수하며 속도는 1.48배 빠른 것을 실험을 통해 확인하였다. Single image super-resolution is to restore a high-resolution image from a low-resolution image. Recently, deep neural networks have been applied in various image processing field, and they achieve successful results in the single image super-resolution. In this paper, we propose an efficient way of utilizing the deep neural networks to the single image super-resolution. we improve the quality of single image super-resolution by using convolution transpose layer, L1 loss function, and residual learning. Experimental results have shown that our method is 0.57㏈ better in terms of PSNR and 1.48 times faster in execution time, compared with existing methods.