The life and astronomical activity of Lee Deok-Seong (李德星, 1720-1794) was studied using various historical sources, including the astronomical almanac, Seungjeongwon-Ilgi (Daily records of Royal Secretariat of Joseon dynasty), and the Gwansang-Gam’s logbooks during Joseon dynasty (A.D. 1392– 1910). We present the results of the study including the following main findings. First, from the investigation of Lee’s family tree, we find that a number of his relatives were also astronomers, notably Samryeok-Gwan (三曆官, the post of calendrical calculation). Second, we find that he took part in the compilation of an annual astronomical almanac over a period of at least 16 years. His major achievements in the astronomy of the Joseon dynasty were to establish a new method of calendar-making calculation and to bring astronomical materials to the Joseon court through a visit to China. The Joseon dynasty enforced the Shixianli (時憲曆, a Chinese calendar made by Adam Shall) in 1654 without fully understanding the calendar. So an astronomer and an envoy were dispatched to China in order to master the intricacies of the calendar and to learn as much of Western science as was available in that time and place. Lee Deok-Seong worked at the Gwansang-Gam (觀象監, Royal Astronomical Bureau) during the reigns of King Yeongjo (英祖) and Jeongjo (正祖). As best as we can ascertain in relation with the calculations in the Shixian calendar, Lee visited China four times. During his trips and interactions, he learned a new method for calendar-making calculations, and introduced many Western-Chinese astronomical books to Joseon academia. Lee greatly improved the accuracy of calendrical calculations, even while simplifying the calculation process. With these achievements, he finally was promoted to the title of Sungrok-Daebu (崇祿 大夫), the third highest grade of royal official. In conclusion, history demonstrates that Lee Deok-Seong was one of the most outstanding astronomers in the late-Joseon dynasty.

This thesis mainly deals with the meaning of single eaves buildings which have Chunyeo with Sarae. As a rule, building with single eaves does not construct Sarae. But we can find some special buildings using Chunyeo with Sarae in the corners of the eaves. At this time, many people say that lower part of the member so called Alchunyeo, and upper part of the member so called Chunyeo. And they also say that the using of Alchunyeo was caused by the shortage of timber which can make Chunyeo properly. As a result, single eaves buildings using Chunyeo with Sarae in the corners of the eaves were not caused by the shortage of timber. That kinds of buildings were made by the hierarchy of building. Single eaves buildings with Sarae have lower rank than double eaves buildings, and also have higher rank than those without Sarae. And we have to say that lower part of the member is Chunyeo, and upper part of the member is Sarae.

조선시대 태일전(太一殿)은 나라에서 太一이란 별에게 제사했던 건물이다. 조선왕조실록을 보면 조선 成宗시기에 태일전의 방소를 옮겨서 제사하는 이방(移方)의 문제가 본격적으로 논의되었다. 조선의 태일전과 太一殿의 移方은 高麗의 태일초제(太一醮祭)의식을 계승한 것이다. 고려에서는 귀주(龜州) 화령 (和寧)충주(忠州) 부평(富平)에 太一宮觀을 移方하였다. 조선에서도 고려의 인식과 법식을 계승하여 통천(通川) 의성(義城) 태안(泰安)의 순서로 태일전을 移 方하였다. 太一殿의 移方의 원리는 天文曆法에 근거한 易學인 太乙數가운데 五福太乙法이다. 고려와 조선에서는 중국보다 더 太乙數의 五福太乙法을 충실하게 따라 移方하면서 太一醮祭를 행하였다.

In this paper, the author studied dictionaries that was named as Yupian in the Joseon Dynasty and modern times. and also studied the versions and characteristics of these dictionaries. The results show that the Chinese dictionaries in Korean development process from early to mature stage.

This study would investigate the significance of Ondo I during the Joseon dynasty period centering around the structure and significance of Ondo!, an understanding of the Annals of the Joseon Dynasty and examples related to Ondo! that appeared in the Annals. Ondo!, which has been with the Korean people for the past 3,000 years, which has a lot of meaning from a social welfare aspect as well as architectural significance. Tlu·ough The Annals of the Joseon Dynasty, it was noted that during the Joseon dynasty period, Ondo! was used for students' health, for the practice of filial behavior and for Jost children.

This study investigates how the spatial recognition structure is emerging through the case of rectangular plan combined with a combination of Dang-Sil(堂室) and Gong(工) shape roof, and identifies a type of architecture in the early Joseon Dynasty that has never been revealed. The conclusion of this study is as follows. First, the Dang and the Sil are connected to each other, but the architectural elements such as pillars, frame, and windows are distinguished and appear as separate buildings. Second, the distinction between Dang and Sil is evident by the difference in the number of ridges and the shape of the roof. In addition, the roof and roof framework of the independent rooms and the rooms were common in the right angled architecture where the direction and the expandability of each structure were maintained. Third, the construction of the Dang-Sil combined structure, in which two or more structure frameworks were combined with the rectangular combined flat roof structure, gradually changed into a single structure with a single ridge. Fourth, this change means that people of the early Joseon Dynasty recognized the Dang and Sil as separate architecture, but the strict sense of spatial separation has disappeared over time.

We study the manufacturers of the astronomical instruments invented as part of the so-called Ganui-Dae (astronomical platform) project in the reign of King Sejong (1418-1450) of the Joseon dynasty. The main purpose of this project was to compile the Chiljeongsan-Naepyeon, a Korean calendar, that lasted for 5.5 years from 1432 to 1438. Through this project, a total of 17 astronomical instruments such as the armillary sphere, celestial globe, and auto-striking clepsydra were developed. It is generally known that most of them were manufactured by Lee Cheon (李蕆, 1376-1451) and Jang Yeong-Sil (蔣英實, fl. 1423-1442). In this study, we investigate the accounts of the Veritable Records of King Sejong, Munjong, and Sejo, focusing on the inscription written out to memorize the completion of the Ganui-Dae project. We found that at least 12 persons took part in manufacturing the astronomical instruments of the Ganui-Dae project. Lee Cheon was involved in the production of four instruments, while Jang Yeong-Sil was involved in two; therefore, it seems that the achievement of Jang Yeong-Sil was overestimated. We also found that Jeong Cho (鄭招, ?-1434) was a scientist and Lee Cheon was an engineer in the early phase of the Ganui-Dae project, while King Sejong and Yi Sun-Ji (李純之, 1406-1465) played major role in the late phase. According to our study, King Sejong and Yi Sun-Ji were involved in the production of at least seven and five instruments, respectively. In conclusion, we believe that this study will be helpful to understand the practical manufacturers of the astronomical instruments invented during the Ganui-Dae project in the Joseon dynasty.

This study is a comparative study on a cookbook published in 1900s titled「Jusikbangmun」, one of collections of the National Central Library, along with other cookery books in Joseon Dynasty in the late 1800s to early 1900s. 「Jusikbangmun」consists of 51 recipes, including 45 kinds of staple foods and six kinds of brews. More than 60% of the recipes deal with staple dishes and side-dishes, whereas the rest deal with ceremonial dishes and drinking. The 「Jusikbangmun」applies a composite method of cooking from boiling and steaming to seasoning with oil spices. The ingredients are largely meats rather than vegetables, which is distinguished other cookery books in the Joseon Dynasty. Only 「Jusikbangmun」deals with such peculiar recipes as ‘Kanmagitang’, ‘Bookyengsumyentang’, ‘Jeryukpyen’, ‘Yangsopyen’, and ‘Dalgihye’. It is estimated that 「Jusikbangmun」was published around the 1900s based on findings that 「Jusikbangmun」is more similar with「Buinpilgi」and「Joseonyorijebeop」in the early 1900s than with「Kyuhapchongseo」, 「Siyijenseo」and「Jusiksieui」in 1800s. Therefore,「Jusikbangmun」is a valuable resource, we can use understand the food culture of the late Joseon period.

The Assisted evidence of Shuo Wen Jie Zi（《說文解字翼徵》）was written by Piao Xuan Shou who is a famous scholar in Joseon Dynasty. This is South Korea's only remaining book that The author was first use of Chinese bronze inscriptions, Seal characters and drum-stone inscriptions to research Shuo Wen（《說文》）. By this way, The author want to correct the mistake of Shuo Wen. So it is stand for that the philology researching reached new heights. However, there are still quite a few defects and shortcomings in the book, like follow blindly view of Xu Shen and wrong to knew Chinese bronze inscriptions. For the Chinese scholars, this book have some effects like “Stones from other hills may serve to polish the jade of this one”. As an example with 12 characters from Bronze inscriptions of Yu Tripod （《大盂鼎銘文》） that it had quoted in this book, and the current Academic research Can be checked with the view of correction Shuo Wen. So that this book can be evaluated and inherited.

This thesis mainly deals with how ‘count of Ryang’ was used in Joseon dynasty. Count of Ryang means how many purlins were used in the building with longitudinal section. As a result, the notion of Ryang in Joseon dynasty does not differ from now one. But the usages of that are slightly different to the present day. In Joseon dynasty, count of Ryang mainly was appeared with another word, count of Kan. Count of Kan has two meanings. One is the length, and the other is the area of building. When they used the count of Ryang combined with Kan, count of Kan had the meaning of length. By doing that, count of Ryang indicates the size of flank, count of Kan indicates the length of front. In the 19th century, count of Ryang looks similar to the past, but count of Kan shows another aspect. It did not indicate the length but the area of building. Through this study, although the usages of Ryang were different to the present, the concepts of Ryang were similar in Joseon dynasty.

This study was to investigate the firing method of limestone in Joseon Dynasty, and analyze the physical·chemical properties of lime mortars in Joseon Dynasty. This study was to manufacture and evaluate the firing experiment and mortar of Limestone by each sort in order to reproduce the traditional lime mortars in Joseon Dynasty, and investigate the behavior to improve physical properties according to the firing method of Limestone. This study has found out that there were screening criteria and standard of appropriate firing temperature about the Limestone in Joseon Dynasty. Accordingly, this study was to improve its strength through various additives and mixture. In particular, in case of Limestone, the black and blue Limestone were preferred, and most of domestic Limestones were low grade Limestone including the clay and took ivory white or blue with low whiteness. This study has shown that the low grade Limestone was mined by the surface mining compared with the high grade Limestone as underground mining method, and could be used because it was easy to mine relatively and there was possibility that Natural Hydraulic Lime(NHL) was used with the traditional lime mortars in Joseon Dynasty.

This study explored the Jeollajwasuyeong Dongheon in the Late Joseon dynasty and its findings are as follows. Buildings in Jeollajwasuyeong were completed since the mid-18th century. They formed areas based on functions and were largely classified into two areas. The buildings within Yeongseong included Gaeksa (guesthouse), Dongheon(government office), Hyangcheong(advisory organ), Jungyeong(military camp), Guncheong (county office), Gongbang(workroom), and Changgo(warehouse). There were also buildings for low-ranking government officials. The central part of Jeollajwasuyeong was the areas of Gaeksa and Dongheon. Gaeksa was iconic area where local governors served King and had 75 Jinnamgwan Guesthouses and 3 inner gates. Those were measured off by separate walls. The Dongheon area was located in the northeast of Gaeksa. There were three gates such as Wanyeongru, Gongsamun, and Jeongbyeonmun at the entry area, which were also divided by walls like Gaeksa. Unjuheon (Dongheon) was at the center of the area where Gyeolseungdang, Mugwonjae, Naea, Chaekbang, and Gongsu were built. Outside the area, Baekwadang(used as Bijangcheong), Jinhyulgo, and Byeonggo were composed of part of the Dongheon area. Most of the buildings in Dongheon seemed to be repaired since 1664. It was difficult to locate the area of previous Dongheon. In particular, Jinnamgwan was first built in 1599 and destroyed by fire in 1716. In 1718, the building was reconstructed and shared historic denominator with Unjuheon before 1858 and reconstructed Unjuheon in 1869. It was found that Unjuheon was reconstructed more than at least three times, which was the central building in Dongheon. The buildings including Gyeolseungdang, Mugwonjae, and Baekwadang in the area were not existed within Jeollajwasuyeong and were reconstructed more than once and maintained until the early 1900s.

조선시대 신앙활동에 있어서 불교의식의 비중은 매우 증가하여, 건축, 불 상, 공예 등 불교미술 전반에서 의식문화의 영향이 광범위하게 확인된다. 본 고에서는 불교의례의 성행이 가져온 변화를 불교회화의 측면에서 살펴보았 다. 불화와 의례공간의 관련성은 주불전 내부의 의식과 야외 의식이라는 두 가지 측면에서 조망할 수 있다. 예배 공간으로 인식되던 주불전(主佛殿)은 다양한 법회(法會)와 의례가 개 최되는 공간으로 활용되었고, 전각 내부에는 의식 수요에 부응하는 불화가 봉 안되었다. 불보살을 도량[道場]에 청해 공양을 권하는 권공(勸供)과 육도의 중 생을 청하여 음식을 베푸는 시식(施食) 의례는 특정 의식에 한정되지 않고 불 교 문화 전반에 영향을 미쳤다. 수륙재의 성행은 특히 삼단의례(三壇儀禮)라 는 형식을 통해 저변화되었다. 그 결과 주불전 안에 상단(上壇), 중단(中壇), 하단(下壇)의 삼단이 갖추어지고, 각 단을 상징하는 불화가 하나의 기본 조합 을 이루게 된다. 한편 야외 의식용 대형 불화인 괘불(掛佛)이 전국적으로 조성되는 현상은 전각 외부로까지 확장된 의식에서 불화의 쓰임과 기능 확대를 보여준다. 불 화는 의식단의 가설에 따른 수요로 혹은 전각 내부에서 외부로 의식단이 옮 겨짐으로써 이동하였다. 불화를 거는 절차의 핵심은 의식이 진행되는 곳으로 불보살의 강림(降臨)을 청하는 것이다. 불보살의 강림은 도량에 초청하고자 하는 불보살의 명호를 부르는 거불(擧佛) 절차를 통해 상징되었다. 또한 거불 의 대상이 의식용 불화의 주제로 그려짐으로써 구체적으로 시각화되었다. 의 식을 위해 불화를 꺼내 이동하고, 의식을 마치면 다시 원래의 자리에 가져다 두는 일련의 절차는 불보살의 현존을‘도량으로의 강림’이라는 극적인 방식 으로 전달하였다. 이들의 강림을 찬탄하고 도량에 내려온 불보살에게 공양을 올리는 절차는 의식의 신이력을 높이는 데 기여하였다. 조선시대 불교회화는 전각에 봉안되어 불상의 뒤편에 놓여 불전이 상징하 는 불세계를 상징하는 데 그치지 않고 의식의 성행이라는 신앙의 흐름에서 역동적으로 기능하였다. 전각 외부로 확장되는 의식과 의식을 전담하는 불 화로의 이행을 대표하는 것이 괘불이라면, 감로도(甘露圖)는 의식에 사용되 던 불화가 전각 내부의 불화로 고정되는 현상을 보여준다. 의식의 성행으로 의식 전용 불화가 생겨나는 동시에 특정한 의식에 사용되던 불화가 상설 불 화로 봉안되었다. 조선시대 불교회화는 의식 수요에 부응하는 과정에서 그 주제와 구성에서 다양한 변용을 보이며 전개되었다. 불화가 봉안된 공간과 그 공간에서 이루어졌던 의식 문화를 통해 조선시대 불화의 다각적인 기능 을 이해할 수 있다.