• Journal of architectural history
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• v.31 no.1
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• pp.51-60
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• 2022

In the 16~17th centuries, the construction of T-shaped pavilion in Gyeongsangbuk-do was centered on the families of the Goseong-Lee clan and Andong-Kwon clan, who had a lot of exchanges with each other near Andong. It can be presumed that the complex structure of the T-shaped pavilion was intended to represent the technology, economic power, and social influence of the clan. After the 18th century, construction areas spread and construction subjects were diversified, but the number of new constructions decreased. It can be seen that T-shaped pavilion was erected and used for public purposes rather than personal reasons in terms of layout or flat scale. The roof of the T-shaped pavilion is very diverse depending on the wooden structure, the height of the roof and the configuration of the apex. The T-shaped pavilion, which combines two parts, has been developed in a way that strengthens not only the appearance but also the structural bonding force. The bonding strength is strengthened through the process of "roof aligning", "roof bonding", "structure connection", and "structure integration", which shows a similar tendency to the age of actual cases.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.36 no.3
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• pp.79-90
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• 2020

This study traces the flow of modern museum architecture from the 18th to 19th century when the rationalist architectural spirit influenced the museum architecture to the 1930s, before the museums of the modern architectural masters appeared. With early modern museums until the 1930s as a target, which had long been enshrined in classicality, finally contributed to narrowing the gap with the times, but did not receive the right evaluation, this study examines their different architectural styles from previous museums and reveals that they have a significance to announce the departure of modern museums beyond classical ones. The three museums, built in the 1930s, will be identified as respectable early modern museums that will fill the remaining blank space of the history of museum architecture. In this study, modern museums are asymmetric, non-centre oriented, and non decorative. They have multi-directional circulation, and a neutral, open and flexible exhibition space. They also try to align themselves with the modern architectural tendency of the day.

• Mycobiology
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• v.42 no.2
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• pp.93-99
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• 2014

The earliest pre-Linnaean fungal genera are briefly discussed here with special emphasis on the nomenclatural connection with the genus Cordyceps Fr. Since its valid publication under the basidiomycetous genus Clavaria Vaill. ex L. (Clavaria militaris L. Sp. Pl. 2:1182, 1753), the genus Cordyceps has undergone nomenclatural changes in the post-Linnaean era, but has stood firmly for approximately 200 years. Synonyms of Cordyceps were collected from different literature sources and analyzed based on the species they represent. True synonyms of Cordyceps Fr. were defined as genera that represented species of Cordyceps Fr. emend. G. H. Sung, J. M. Sung, Hywel-Jones & Spatafora. The most common synonyms of Cordyceps observed were Clavaria and Sphaeria Hall, reported in the 18th and in the first half of the 19th century, respectively. Cordyceps, the oldest genus in the Cordyceps s. s. clade of Cordycipitaceae, is the most preferred name under the "One Fungus = One Name" principle on priority bases.

• Korean Institute of Interior Design Journal
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• v.18 no.6
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• pp.52-59
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• 2009

In the study will look into how Baroque concepts are expressed in architectural space by analyzing the concepts of Baroque formative vocabularies applied in his architecture through a Spanish architect Paolo Portoghesi. Baroque is regarded as the philosophical thought that means enlargement toward diversity of a firm and fixed trend beyond the concept of a certain epochal form of 16th and 17th century architecture. In addition, it is from the free attitude and the intelligent and formal stereotype, and signifies common conditions more than one style in architecture history. Paolo Portoghesi proposes to express gestalt approach by Baroque precedent in his architecture through plasticity and geometric collision technique. Here, the expression of plasticity means the effect that gives formative rhythm to Baroque curved structures. That is the method to expand the formative possibility by changing various materials such as bricks, concrete, and timbers. Second, the geometric collision technique is the technique to constitute the flat form of overall space through the juxtaposition technique, Baroque symmetrical and homogeneous geometric manipulation technique. Accordingly, this study will overcome Inlimitation of formative monotony and expression of abstraction that modernism architecture has, and examine formative waste and conflicts which may be derived from impractical architectural languages of the concept of excessive disorder or the minimum form. This discussion is considered as the first step to tune balance between productivity and formativeness in modern architecture.

• Journal of Conservation Science
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• v.3 no.1 s.3
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• pp.13-18
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• 1994

Chemical analysis and metallographic observations of the iron slag were carried out in an attempt to estimate the old iron-making process. The slag containing $9.3\%\;TiO_2$ without Cu indicates that the ore used for smelting was sand iron, not rock ore. The phases identified in the slag were $ulv\ddot{o}spinel$, magnetite, $w\ddot{u}stite$, fayalite etc. This also supports the fact that the smelted ore was iron sand. The total amount of Fe and slag-making components$(=SiO_2+Al_2O_3+MgO+CaO)$ were $40.7\%\;and\;36.1\%$, respectively. These values were average ones found in the old slags formed in the ancient iron-making process. Assuming that $TiO_2$ in the ore combines with FeO, resulting in the formation of $ulv\ddot{o}spinel$, the estimated temperature of smelting was found to be about $1200^{\circ}C$.

• Journal of architectural history
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• v.8 no.3 s.20
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• pp.91-111
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• 1999

This study tries to compare the architectural thought of Michel Foucault with that of Manfredo Tafuri in order to make clear the architectural identity as a social institution. In Michel Foucault's case, the archeology of discourse and the geneology of power were central method to understand the history of occidental society since the Renaissance. Four him, architecture is assumed as a mechanism of operation which make the power effectively radiate in th space. He thinks that a new discursive space was arranged since the 18th century in Europe, the architecture played a role to coordinate divers powers. Mafredo Tafuri, architetural historian, depends on the criticism of ideology in search of the relation between the economic system of capitalism and modern architecture and urbanism. He thinks that all architecture is an institution. And any attempt to overthrow the institution, is bound to see itself turned into a positive contribution and into an ideology, So all architectural attempts to conceal the contradiction of capitalism are negated. This different perspective on architecture exposes many points of dispute: historical periodization, disciplinary limit of architecture, understanding of Enlightenment architecture, utopia and heterotopia, etc.

• Journal for History of Mathematics
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• v.28 no.6
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• pp.301-310
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• 2015

Since Jiuzhang Suanshu, the main tools in the theory of right triangles, known as Gougushu in East Asia were algebraic identities about three sides of a right triangle derived from the Pythagorean theorem. Using tianyuanshu up to siyuanshu, Song-Yuan mathematicians could skip over those identities in the theory. Chinese Mathematics in the 17-18th centuries were mainly concerned with the identities along with the western geometrical proofs. Jeong Yag-yong (1762-1836), a well known Joseon scholar and writer of the school of Silhak, noticed that those identities can be derived through algebra and then wrote Gugo Wonlyu (勾股源流) in the early 19th century. We show that Jeong reveals the algebraic structure of polynomials with the three indeterminates in the book along with their order structure. Although the title refers to right triangles, it is the first pure algebra book in Joseon mathematics, if not in East Asia.

• Journal of Korean Library and Information Science Society
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• v.43 no.3
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• pp.407-432
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• 2012

This study is carried out to investigate the pubishing culture in Chonnam province during the latter half of Chosun Dynasty. The subjects, dates, and places of publication are analyzed from the books which have been found in the publication records and the catalog of woodblocks. Right after the war, Samryakjikhae and Sohakjipsul were published at Jukchunseodang, Bosung area. Anthologies were published dominantly through the whole period. Naju was the center of publication in 17 & the first half term 18 centuries and then moved to Jangwheung area. In this period, publication of genealogical records, biographies, anthologies, geography books had been increasing vastly. From the 19 century, most books were published by using the wooden type. The wooden type was used because the contents of books were for the limited number of publication. The most active publication happened at the end of 19th century. Significance of Confucian literature, collective anthologies, medical science, and confucious classics decreased in the latter half.

• Strategy21
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• s.36
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• pp.215-240
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• 2015

Jeong YagYong, who are the SilHak Scholar during 18^th to 19^th century, wrote the Sadaegore with his pupil Lee Cheong. This work is the guide of diplomacy, which are asked to write from King Jeongjo. Although this book was completed after King Jeongjo's death, it harbors the King's thoughts about diplomacy or the relationship with China. Haebanggo, one chapter of the book, is about marine policy and how to treat the castaways. In this chapter, Jeong YagYong provides various ways to deal with these problems in marine area and sea refugee I will examine the Jeong YagYong's thought about the problems and ways to address these problems. Futhermore, I will inquire Jeong's opinion on the boundary in marine area. He recognized that many border transgressions happened in marine area at that time and considered that as urgent political affairs. Haebanggo consists of two parts. First part of the book is about protect own island from other countries. The rest part is about cases of dealing with castaways and their transgression. I argue that Jeong YagYong intended to make distinct borderlines in marine area and empathized the necessity of protecting Joseon's islands from other countries.

• Journal of Chest Surgery
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• v.16 no.2
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• pp.175-183
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• 1983

Ventricular aneurysm which was first described by John Hunter on 18th century, has been experienced by many surgeons after successful using of cardiopulmonary bypass by Cooley on 1958. According to Gorlin, the definition of ventricular aneyrysm is portion of the ventricle which is not motile at systole (akinesis) or which has paradoxical dilatation at systole(dyskinesis). The ventricular aneurysm is classified to anatomical and functional. The anatomical ventricular aneurysm is devided into true or false again. Average age incidence is ranged from 49 to 60 and male predominance is reported. The cause is ischemic coronary artery disease in almost cases but hypertropoc cardiomyopathy, congenital abscence of myocardium, complication after mitral valvular replacement and trauma may also cause the ventricular aneurysm. Angina pectoris and congestive heart failure are most common clinical manifestations Ventricular tachycardia and systemic embolization are also complained. Using cardiopulmonary bypass, aneurysmectomy alone or combination with coronary artery revasculization are currently done for surgical treatment with steady improvenment of mortality. The first patient was 33 years old man who had true type of ventricular aneurysm on inferior wall the left ventricle near apex with protruded huge organized thrombus. The thromboembolic phenomenon was noted on both lower extremities. Under cardiopulmonary bypass, aneurysmectomy and thrombectomy were done. The aneurysmal orifice was repaired with Teflon buttless suture. The second patient was 30 years old female who had large true type of ventricular aneurysm on inferior wall of the left ventricle. Under cardiopulmonary bypass, aneurysmectomy with repair of aneurysmmal orifice defect by means of double layered Dacron patch was done with reinforce by outer silastic sheet covering. She was discharged from hospoital at post op. 15th day uneventfully.