• Title/Summary/Keyword: Chosun period

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Retrospective Study of Sandblasted, Large-grit and Acid-etched Implant (Sandblasted, Large-grit and Acid-etched Implant에 대한 후향적 임상 연구)

  • Jo, Ji-Ho;Kim, Su-Gwan;Moon, Seong-Yong;Oh, Ji-Su;Park, Jin-Ju;Jung, Jong-Won;Yoon, Dae-Woong;Yang, Seong-Su;Jeong, Mi-Ae
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.33 no.4
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    • pp.352-358
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    • 2011
  • Purpose: This study evaluated the prognosis and survival rate of SLA (Sandblasted, Large-grit and Acid-etched) implants and it also evaluated the prosthodontic complications and the associated factors. Methods: Twenty seven patients (14 men and 13 women, mean age: 54.9) who visited Chosun University Hospital Implant Center with the chief desire for placement of an implant in an edentulous area from March, 2008 to December 2008 and who received placement of a SLA implant ($Implantium^{(R)}$, Dentium Co., Korea) were selected for this study. Results: The average follow-up period was 15 months and the study was based on the treatment records, radiographs and clinical examinations. A total of 69 implant cases were retrospectively assessed for the width and length of the implant, the primary and secondary stability, the combined surgery, the employed bone graft material and barrier membrane, the status of the opposing tooth, implant failure and the prosthetic complications. During the follow-up period (average: 15 months), the accumulative survival rate of the 69 implants in 27 patients was 100%. Complications such as infection, sinusitis and fixture exposure after surgery were seen for 5 implants in 4 patients. Complications such as screw loosening, contact loosening and peri-implant gingivitis after prosthodontic treatment occurred in 7 cases (10.14%). Conclusion: This study reports placement of SLA implants may cause various complications, yet the final accumulative survival rate was 100%. The SLA implant ($Implantium^{(R)}$) has an excellent clinical survival rate and outcome.

The Study on Influence Factors of Snowfall Enhancement Used by Orographic Cloud Seeding in a Mountainous Area

  • Yang, Ha-Young;Ryu, Chan-Su
    • Journal of Integrative Natural Science
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    • v.7 no.3
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    • pp.214-218
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    • 2014
  • The main objective of this study is to analyse the influence factors of snowfall enhancement by glaciogenic seeding in a mountainous area. Twenty-five seeding experiments have been conducted during the period of February to April 2010. To use two rates seeding experiments (SR1: $1.04g\;min^{-1}$, SR2: $2.08g\;min^{-1}$) have been tested to get an appropriate ratio for snowfall enhancement at Daegwallyeong area. The conditions of seeding are able as followings: surface temperature <$0^{\circ}C$, wind speed <5 m/s, wind direction between 0 and $130^{\circ}$. The experiment results indicated that in the case of SR1 was more effective than SR2. The number of small ice particles below 1.0 mm was increased during seeding period measured by PARSIVEL disdrometer near generator. Most of snowfall enhancement by seeding was observed the inflow of the easterly wind blew in toward Gangwon regions from the East Sea and the supersaturated supercooled liquid water due to orographic effect.

A Case Study on a Woman′s Excavated costumes in the 17th century - Based on the excavation of the Mrs. KyungJu Lee gave in Young-am, Chonnam - (17세기 여자 출토복식의 일례 - 전남 영암출토 경주이씨( \ulcorner~1684) 분묘의 출토복식을 충심으로 -)

  • 안명숙
    • Journal of the Korean Society of Costume
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    • v.51 no.4
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    • pp.5-14
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    • 2001
  • Excavated costumes at the women's tomb in 17C have been sustained good condition. These materials give us that Jang ui(長衣) and so chang ui(소창의) with chechori(유), skirt, trousers(袴) reflects on women's fashion style at that time. By seeing these costumes, we can get the characteristics of costumes in mid-chosun era with chechori, skirt, jang ui, so chang ui etc. The features of chechori in this area are follows : form - diagonal gil, collar - kalkit and tangkokit, length - about 50cm, materials - silk, cotton, grass-cloth, kind - single, double. clothing padded with cotton wool etc. It is the first time that chang ui, one of Po, is excavated in this area. There are three pieces of jang ui which is significant data to study deeply on the costume in 1700's. Jang ui mainly made of silk in pattern, silk, cotton and decorated stylish printing on the robes. With these material and style, we can induce the mode of mid-chosun period. Through comparative studying we have many chances to understand women's the garment for the dead(염습의) in mid-chosun period.

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The late 19th century Japanese folk culture which Korean Embassy experienced - Focused on Japanese folk culture recognition of Ki-Su Kim(金錡秀) - (수신사(修信使)가 본 근대일본풍속(近代日本風俗) - 김기수의 일본풍속인식을 중심으로 -)

  • Jeon, Seong-Hee;Park, Chun-Sun
    • Korean Journal of Human Ecology
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    • v.14 no.5
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    • pp.795-803
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    • 2005
  • This paper discusses the late nineteenth-century Korean intellectuals' understanding of Japanese customs on the basis of Ki-Su Kim(金綺秀)'s records. Ki-Su Kim was conservative on his inspection and observation trip to Japan Even though he was loyal to Chinese philosophy, he expressed his great interest when he was reluctant to see the Western technology flowered in Japan because it is not mentioned in Confucianism(朱子學). However, he, like mordern scholars in the later period of the Chosun dynasty, took an objective view of the military matters, such as the military training of soldiers, weapons, and others. On the one hand, he appreciated the western garment in that it, fitting the human body perfectly, makes people comfortable. In the later period of the Chosun dynasty, the Koreans had a sense of their superiority to the Japanese and held them in contempt, which had been rooted in the Japanese invasion of Chosun in the year of Imjin(AD 1592). Even around AD 1870, the Koreans regarded the Japanese as a barbarian or a savage, even though the Japanese had attempted to modernize their country with the introduction of the Western civilization since the renovation of Meizi(明治).

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A Case Study on Heavy Rainfall Using a Wind Profiler and the Stability Index

  • Hong, Jongsu;Jeon, Junhang;Ryu, Chansu
    • Journal of Integrative Natural Science
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    • v.8 no.3
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    • pp.221-232
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    • 2015
  • In this study, the vertical characteristics of wind were analyzed using the horizontal wind, vertical wind, and vertical wind shear, which are generated from a wind profiler during concentrated heavy rain, and the quantitative characteristics of concentrated heavy rain were analyzed using CAPE, SWEAT, and SRH, among the stability indexes. The analysis of the horizontal wind showed that 9 cases out of 10 had a low level jet of 25 kts at altitudes lower than 1.5 km, and that the precipitation varied according to the altitude and distribution of the low-level jet. The analysis of the vertical wind showed that it ascended up to about 3 km before precipitation. The analysis of the vertical wind shear showed that it increased up to a 1 km altitude before precipitation and had a strong value near 3 km during heavy rains. In the stability index analysis, CAPE, which represents thermal buoyancy, and SRH, which represents dynamic vorticity, were used for the interpretation of the period of heavy rain. As SWEAT contains dynamic upper level wind and thermal energy, it had a high correlation coefficient with concentrated-heavy-rain analysis. Through the case studies conducted on August 12-13, 2012, it was confirmed that the interpretation of the prediction of the period of heavy rain was possible when using the intensive observation data from a wind profiler and the stability index.

A Study on the Characteristics of Housing Environment at Namdo Castle in Chindo (진도 남도석성의 주거환경특성에 관한 기초조사연구)

  • 임만택
    • Journal of the Korean housing association
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    • v.15 no.1
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    • pp.15-23
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    • 2004
  • Namdo castle located in Namdong-ri, Imhoi-myon, Chindo-kun Cholla South Province is 610 meters long 5.3 meters high, and 20,000 square meters wide. This castle hasn't an accurate built year record. But there is still a great possibility of its having been built in the Sam-kuk (Three Kingdoms) era (around A.D. 300∼700). This castle seems to have been enlarged after 1438 because Manho-pu (lower unit of government office in Chosun dynasty) in Namdopo first appeared in the 20th year of King Sejong's reign. The main office, guest rooms, official residency of the castle were removed during the Japanese colonial rule and the land of the castle was sold separately for housing in the name of liquidation of Korean history. Thus, the Namdo castle that served as a naval base to defeat the Japan-based pirates' invasions throughout the Chosun period disappeared. As of Oct. 2000. 28 houses including a town hall occupy the site of the castle and are expected to be removed according to the restoration program of the castle. In this thesis, I'd like to study about the characteristics of housing in the site of the castle. To figure out the direction of the restoration program. I interviewed a few relating public officials in Chindo County Office. To examine the characteristics of housing, I surveyed the residents for the surrounding of housing.

A Study on the Food Culture of Literature in the late period of the Chosun Dynasty - Focused on Five Pansori texts into written form- (조선후기 문학에 나타난 음식문화 특성 - 판소리 다섯마당을 중심으로 -)

  • Kim, Mi-Hye;Chung, Hae-Kyung
    • Journal of the Korean Society of Food Culture
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    • v.22 no.4
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    • pp.393-403
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    • 2007
  • This study presents the food culture as analysis food material, food and cooking tools in the novel literature and examines the food as a code of current cluture of common social through five Pansori texts among the twelve Pansori texts into written form. It is a many Pansori, but this study is analysed to select early copying papers. It can be found rice, Kimchi, salted fish as the common people food in Simchong-ga text. It can be known characteristics of Jeolla-do Area food used many food material and acceptance of foreign crops in the late period of the Chosun in Chunhyang-ga text. In Hungbo-ga text, it can be found the popularity food is rice cake and meat and looked the special feature of dog meat, rice cake, scorched rice-tea. In Toebyol-ga text, it can be looked many sea food and medicine beverages, and in Chokpyok-ga text, it can be found peculiarity of drink for making excitement during a war. Moreover, in five Pansori texts, that is seemed characteristics such as cover of tableware, spoon and chopsticks, tableware china, a cauldron, a charcoal burner, a brass chafing dish, a table, a flail and a mill.

A Study on Cold Damage(傷寒) in the Compendium of Prescription from the Countryside(鄕藥集成方) - Focusing on citation, medical theory, prescription, medicinal herbs - (조선 의서 『향약집성방』 중에 실린 상한(傷寒) 논의 연구 - 인용 문헌, 의론(醫論), 처방, 본초 등을 중심으로 -)

  • Oh, Chae-Kun
    • The Journal of Korean Medical History
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    • v.25 no.2
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    • pp.121-136
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    • 2012
  • The purpose of this paper is to derive the features of cold damage clinical medicine during the early days of the Chosun(朝鮮) period by analyzing discussions on cold damage published in the official medical book of the Chosun period, Compendium of Prescription from the Countryside(鄕藥集成方, CPC). Cold damage was one of the typical diseases in East Asia where there was constant seeking of the utilization of prescriptions, ways of preparations, and awareness regarding cold damage as shown in Zhang, Zhongjing(張仲景)'s Treatise on Cold Damage Disease(傷寒論, TCDD) below. Traditional Korean medicine which possessed the medical universality of East Asia also was no exception and through an analysis of the part on cold damage in CPC, it is expected that medical features of cold damage in Korea passed down from the Koryo(高麗) Dynasty to the early Chosun period will be revealed. For this, first there needs to be an organization of past discussions on cold damage surrounding the existence of infection and after checking the issues, exploring which of the writings related to TCDD and editions are being utilized through an analysis on citing literature of Cold Damage Disease Literature(傷寒門) and Heat Pathogen Disease Literature(熱病門) which have developed discussions on cold damage in CPC. In addition, by comparing Peaceful Holy Benevolent Prescription(太平聖惠方, PHBP) and Complete Record of Sacred Benevolence(聖濟總錄, CRSB), known to have greatly influenced CPC and Cold Damage Literature and Heat Pathogen Disease Literature, features of form and content used by CPC were analyzed. Features of form were examined through pattern of organization and number of citing literature were examined and for features of content, cold damage infection, classification, syndrome differentiation method, and utilization of materia medica among prescriptions were examined. Discussions on cold damage as being uninfectious as stated in Treatise on the Pathogenesis and Manifestations of All Diseases(諸病源候論) unlike pestilence, epidemic pathogen(時氣), warm pathogen disease(溫病), and heat pathogen disease were excluded in PHBP. PHBP opened the possibility of cold damage infection and later writings, CRSB and CPC also follow this. As a result of analyzing citing literature of the part on cold damage in CPC, it is uncertain which edition of TCDD is being utilized; however, the most distinctive feature was that Classified Emergency Materia Medica(證類本草) and not writings specializing in cold damage are in use. In general, although CPC in terms of form is similar to CRSB, content creation predominantly depended on PHBP. More specifically; first, in terms of the existence of cold damage infection, arguments of PHBP and CRSB are maintained. Second, in terms of cold damage classification, although CRSB is followed, heat pathogen disease is classified separately developing PHBP as is. Third, in terms of method, as Book of Keep Healthy(南陽活人書) and CRSB compiled in later times are cited, it is deemed that arguments were raised to a certain extent regarding six-meridian syndrome differentiation(六經辨證). Fourth, although the majority of utilized materia medica among cold damage prescriptions utilize Materia Medica from the Countryside(鄕藥本草) in CPC and materia medica from Korean Peninsula, this is due to the desire for the compilation performance of CPC to be propagated to ordinary citizens and not the ruling class. CPC as the official medical book compiled in the early days of the Chosun period was greatly influenced by the Song(宋) Dynasty's medical books, PHBP and CRSB shows that cold damage medicine in the early Chosun Period indeed possesses the medical universality of East Asia. Furthermore, the features of published medical theory and prescriptions reveal the existence of the cold damage medical tradition of the Chosun period serving as clues for cold damage research tradition among Korea's medical history.

A Study on the Front Windows Frame of Maeng's House (맹씨행단 대청 전면창호에 관한 연구)

  • 곽동엽
    • Journal of the Korean housing association
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    • v.6 no.2
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    • pp.171-180
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    • 1995
  • This paper tries to define the characteristics of windows frame built in the end of Koryu dynasty to the early period of Chosun dynasty. The windows frame is found both in temples and in Maeng's house. It is thus proved that the frame was a general one prevailed in that time without regard to function and region. And it proves to be the original form of windows frame of temples and houses in the middle or the end of Chosun dynasty.

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NIELSEN TYPE NUMBERS FOR PERIODIC POINTS ON THE COMPLEMENT

  • LIM, IN TAIK
    • Honam Mathematical Journal
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    • v.24 no.1
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    • pp.75-86
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    • 2002
  • A Nielsen number $\bar{N}(f:X-A)$ is a homotopy invariant lower bound for the number of fixed points on X-A where X is a compact connected polyhedron and A is a connected subpolyhedron of X. This number is extended to Nielsen type numbers $\bar{NP_{n}}(f:X-A)$ of least period n and $\bar{N{\phi}_{n}}(f:X-A)$ of the nth iterate on X-A where the subpolyhedron A of a compact connected polyhedron X is no longer path connected.

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