고려시대 불전과 불상의 봉안에 관한 연구

이정국,이강업 대한건축학회 1998 대한건축학회논문집 Vol.14 No.7

15세기 궁궐의 正殿 영역의 내부공간 이용방식에 관한 연구

이정국 한국건축역사학회 2004 건축역사연구 Vol.13 No.3

This study is to comprehend the interior space of the Royal Palace in the 15th Century, the early years of Joseon Dynasty. The subject of this study is limited to the center of the Royal Palace, that is Jeongjeon(正殿, the royal audience chamber) and Haengrang(行廊, which encloses Jeongjeon on four sides and has many rooms).It is very important to understand the usage of the interior space because the architectural space consists of the space unified by the organic function of the interior and the exterior space. But there are few studies on the interior space of Jeongjeon and Haengrang at the Royal Palace. Therefore, the purpose of this study is to understand the interior space of those buildings. The result of this study is following.Haengrang has several uses such as a night duty room, a storehouse, a government office or a banquet hall etc. So the interior spaces were finished with various methods that were suitable for the use of each room, and the material of the floor were the ground, Maru(the wooden floor) or Ondol(the Korean traditional heating system)There were held many kinds of ceremonies in Jeongjeon, and the government officials could not enter the inside of that building and took part in the ceremony on the front court of Jeongjeon, except the men performing the ceremony. But the high ranking officials could enter the inside when King gave a banquet and there, they prostrated themselves before King. They sat down with their legs crossed on the ground floor instead of sitting on a chair.When King held tea ceremony with Chinese envoys in Jeongjeon, they sat on Gyoui(交倚, a kind of armchair). Then, the government officials performing the ceremony in Jeongjeon prostrated himself around the King and the Chinese envoys and others stood around them.

조선전기 경복궁 동궁(東宮)과 동조(東朝)의 건축공간에 관한 연구

이정국,Yi, Jeong-Kuk 한국건축역사학회 2012 건축역사연구 Vol.21 No.1

The purpose of this study is to understand the architectural space of Donggung(東宮), the Prince's Palace, and Dongjo(東朝), the King's Mother and Queen's living space, in the early Joseon Dynasty. The Royal palace can be divided into three parts, political space for king, living space for king and his family and government office. So first, we should to understand the characteristics of each space in the Royal Palace. Up to now we have looked at the architectural space of Donggung(東宮) and Dongjo(東朝) in Gyeongbokgung(景福宮), one of the Royal Palace, the result of this study is as followings. Donggung which was living space for Prince consisted of Jaseondang(資善堂), Seunwhadang(承華堂) and Kyejodang(繼照堂) in the era of King Sejong Kyejodang was demolished and Seunwhadang was destroyed by fire in King Jungjong era and was not rebuilded. This buildings The buildings consisted of Jeondang, Whudang, main gate, hapmun(閤門) and corridor or fence Donggung and Dongjo was separated wall Dong consisted of many buildings for Queen dowager, Queen and many royal concubines The arrangement of Donggung and Dongjo was assumed like as the Fig2.

급성 호흡부전의 병태생리 및 치료

이정국,진성기,신영기 釜山醫師會 1979 釜山醫師會誌 Vol.15 No.7

전기로 슬래그를 이용한 시멘트 모르타르의 강도성상

이정국,정효석,김완기,소양섭 대한건축학회 2001 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.21 No.1

In this study, we compared the basic physical properties of mortar using electric arc furnace slag (EAFS)with ordinary Portland cement(OPC) mortar with the purpose of recycling it as fine or coarseaggregate for ECO-concrete. Generally because EAFS has the expansion property, it is not proper to use as a building material and it need of aging management. So we intend to find the strength characteristics before aging management. We replaced EAFS as fine aggregate, used two cement (ordinary Portland cement, blast furnace slag cement) as a binder. The strength of mortar with addition of EAFS is similar to the OPC mortar. Especially, when binder is BSC, addition of FAFS shows strength improvement.

Predictive Factors for Bleeding During Percutaneous Nephrolithotomy

이정국,김범수,박윤규 대한비뇨의학회 2013 Investigative and Clinical Urology Vol.54 No.7

Purpose: Although percutaneous nephrolithotomy (PCNL) has been accepted as a standard method for the management of large renal stones, the incidence of renal hemorrhage is relatively high. This study investigated the variables that affect bleeding during PCNL. Materials and Methods: The medical records of 370 patients who underwent PCNL by a single surgeon from January 2005 to December 2010 were reviewed retrospectively. All patients were divided into two groups according to median blood loss (lesser bleeding group and higher bleeding group). Various clinical and perioperative factors including age, sex, stone size and position, degree of hydronephrosis, operative time, underlying disease, history of anticoagulant medication, presence of previous nephrostomy catheter, stone composition, and thickness of the renal cortex were assessed. For statistical assessment, univariate and multivariate logistic regression analyses were used. Results: The mean patient age was 48.8 years (range, 22 to 75 years). Forty-three patients (11.6%) received a transfusion and 9 patients (2.4%) underwent angioembolization after surgery. The mean blood loss was 511.8±341.3 mL. Body mass index (BMI),stone size, stone position, operation time, and degree of preoperative hydronephrosis were predictive factors for severe bleeding during PCNL. Conclusions: On the basis of the results achieved by a single surgeon, staghorn stones, high BMI, large stones, prolonged operation time, and absence of hydronephrosis were significantly associated with the risk of severe bleeding during PCNL.

스퍼터링 방법으로 성장한 코발트크롬철망간니켈 고엔트로피 질산화물 박막의 구조특성

이정국,홍순구,Lee, Jeongkuk,Hong, Soon-Ku 한국재료학회 2018 한국재료학회지 Vol.28 No.10

This study investigates the microstructural properties of CoCrFeMnNi high entropy alloy (HEA) oxynitride thin film. The HEA oxynitride thin film is grown by the magnetron sputtering method using nitrogen and oxygen gases. The grown CoCrFeMnNi HEA film shows a microstructure with nanocrystalline regions of 5~20 nm in the amorphous region, which is confirmed by high-resolution transmission electron microscopy (HR-TEM). From the TEM electron diffraction pattern analysis crystal structure is determined to be a face centered cubic (FCC) structure with a lattice constant of 0.491 nm, which is larger than that of CoCrFeMnNi HEA. The HEA oxynitride film shows a single phase in which constituting elements are distributed homogeneously as confirmed by element mapping using a Cs-corrected scanning TEM (STEM). Mechanical properties of the CoCrFeMnNi HEA oxynitride thin film are addressed by a nano indentation method, and a hardness of 8.13 GPa and a Young's modulus of 157.3 GPa are obtained. The observed high hardness value is thought to be the result of hardening due to the nanocrystalline microstructure.

영화 <서치>의 연출 분석 -파운드 푸티지와 전통적인 장르의 융합을 중심으로-

이정국 한국영상제작기술학회 2020 영상기술연구 Vol.- No.32

Aneesh chaganty’s feature debut film <Searching>, released around the world in 2018, is a billion-dollar low-budget film that rarely succeeds in both critically and commercially. The found footage movie <Searching> is also famous for its new screen format called ‘Screen Life’, and its creator Timurbeck Mambetov is also a work that shows its planning power. In the early days of filmmaking, Found footage, which was often tried in experimental films, has now been produced as a sub-genre of Fake Documentary. When a man (David) analyzes the movie <Searching>, which is a story that Internet search traces the whereabouts of his missing daughter, from the point of view of the director, it can be seen that found footage effectively fused the traditional genre, mystery thriller. Thanks to the PC-based story development, <Searching> is a narrative development that allows viewers to approach the film by watching all the clues like an amateur detective. The basic theme is “Family love”, but it is also special that the lives of modern people revealed through the Internet, their duality, and voyeurism are satirically depicted. In the meantime, the traditional found footage movies that were used mainly to maximize the reality in horror movies concentrate on showing simple narrative in a realistic way. <Searching>, on the other hand, has a dignified story due to the effective use of motifs and a close double line in addition to the advantages of existing pound footage. Unlike ordinary movies, <Searching> is centered on footage, so new concepts arise in traditional photography, editing, and acting. For example, you can express your character’s emotions with a simple little effect, such as blinking mouse cursor, typing speed, writing and erasing letters. Sometimes, the actors have to take the camera with their own hands. <Searching> is a movie with a special format that is replaced by a monitor that realizes a traditional screen in the 21st century online world. Thanks to director Chaganti’s outstanding directing, Found footage is now confident that it will gradually become recognized as one of the main genres from the sub-genre. 2018년 전 세계에 개봉된 아니쉬 차간티(Aneesh chaganty) 감독의 장편 데뷔작 <서치>(Searching)는 10억 정도의 저예산 영화로서 드물게 비평적으로나 상업적으로 모두 성공한 작품이다. 파운드 푸티지 영화인 <서치>는 ‘스크린 라이프’라는 새로운 영상 포멧으로도 유명한 데, 제작자인 티무르 베크맘베토브가 그 기획력이 돋보이는 작품이기도 하다. 영화사 초기에 실험영화에서 주로 시도되던 파운드 푸티지는 이제 페이크 다큐의 하위 장르로서 제작되곤 왔다. 한 남자(David)가 사라진 딸의 행방을 인터넷 검색에 의해 추적한다는 스토리인 영화 <서치>를 연출적인 관점에서 분석해 보면, 파운트 푸티지에 전통적인 장르인 미스터리 스릴러를 효율적으로 융합했다는 점을 알 수 있다. <서치>는 PC를 기반으로 한 스토리 전개 덕분에 관객들도 영화를 보면서 아마추어 탐정처럼 모든 단서를 추리해 접근해볼 수 있는 내러티브 전개가 특징이다. 기본적인 주제는 ‘가족애’이지만, 인터넷을 통해 드러난 현대인들의 삶과 그들의 이중성, 그리고 관음증 등을 풍자적으로 그린 점도 특별하다. 그동안 주로 공포영화에서 현실감을 극대화하기 위해 사용되었던 기존의 파운드 푸티지 영화들은 단순한 서사를 현실감 있게 보여주는 데 집중하는 편이다. 그에 반해 <서치>는 기존 파운드 푸티지 장점에 더해 모티프의 효과적인 활용과 치밀한 복선으로 인해 밀도감 있게 스토리가 전개된다. <서치>는 일반영화와 달리 푸티지 중심으로 이뤄지기 때문에 전통적인 촬영과 편집, 그리고 연기연출에 새로운 개념이 발생한다. 가령 마우스 커서의 깜박임, 타이핑 속도, 글자를 썼다가 지우기 등과 같은 단순해 보이는 작은 효과만으로도 캐릭터의 감정을 느낄 수 있게 표현한다. 때론 배우들이 직접 카메라를 들고 촬영에 임하기도 해야 한다. <서치>는 전통적인 스크린이 21세기 온라인 세상을 구현한 모니터에 의해 대체된 특별한 포맷을 가진 영화다. 차간티 감독의 뛰어난 연출 덕분에 파운드 푸티지는 이제 하위 장르에서 점차 메인 장르 중 하나로 인정받게 될 것이라고 확신한다.

VENTURE NOW-건설산업이 세계적 경쟁력 확보하려면 글로벌기술 개발 급선무

이정국,Lee, Jeong-Guk 벤처기업협회 2007 벤처다이제스트 Vol.112 No.-

조선전기 경복궁의 침전(寢殿)과 후원의 건축공간에 관한 연구

이정국,Yi, Jeong-Kuk 한국건축역사학회 2011 건축역사연구 Vol.20 No.6

The purpose of this study is to understand the architectural space of Chimjeon (寢殿), the King's Bedroom, and Backyard, in the early Joseon Dynasty. The Royal palace can be divided into three parts, political space for King, living space for King and his family and government office. So first, we should to understand the characteristics of each space in the Royal Palace. Up to now we have looked at the architectural space of the King's Bedroom in the central area and Backyard in Gyeongbokgung (景福宮), one of the Royal Palace, the result of this study is as followings. Cheonchujeon (千秋殿) and Manchunjeon (萬春殿) were not both sides of Sajeongjeon (思政殿), were on the north side of Gangnyeongjeon (康寧殿) Gangnyeongjeon was not a bedroom for the King and Queen, only for King. Bedroom for Queen was located another space in the Royal palace. There was Hamwonjeon on the west side of Koytaejeon. Jamidang and Cheongyeonroo were on the right side of Koytaejeon The Backyard on the north side of Gyeongbokgung had a wide area for horseback archery and the practice of battle formation The arrangement of the King's bedroom in the central area was assumed like as the Fig 7. and Fig 8.