• Bulletin of the Korean Mathematical Society
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• v.56 no.1
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• pp.31-44
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• 2019

A graph theoretical model called Roman domination in graphs originates from the historical background that any undefended place (with no legions) of the Roman Empire must be protected by a stronger neighbor place (having two legions). It is applicable to military and commercial decision-making problems. A Roman dominating function for a graph G = (V, E) is a function $f:V{\rightarrow}\{0,1,2\}$ such that every vertex v with f(v)=0 has at least a neighbor w in G for which f(w)=2. The Roman domination number of a graph is the minimum weight ${\sum}_{v{\in}V}\;f(v)$ of a Roman dominating function. In order to deal a problem of a Roman domination-type defensive strategy under multiple simultaneous attacks, ${\acute{A}}lvarez$-Ruiz et al. [1] initiated the study of a new parameter related to Roman dominating function, which is called strong Roman domination. ${\acute{A}}lvarez$-Ruiz et al. posed the following problem: Characterize the graphs G with equal strong Roman domination number and Roman domination number. In this paper, we construct a family of trees. We prove that for a tree, its strong Roman dominance number and Roman dominance number are equal if and only if the tree belongs to this family of trees.

• Journal of architectural history
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• v.33 no.1
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• pp.7-18
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• 2024

Lots of educational and medical facilities were actively built along with foreign missionary activities under Korean Empire era. Paiwha Girls' High School is one of the educational facilities and at that time dormitory house was essential for recruiting girl students. Especially Paiwha's dormitory was traditional hanok style, but now an auditorium has built in its place. This study carried on to restore its hanok dormitory house based on the plan sketch which drawn Paiwha Girls' High School magazine. Through the analysis and investigation, we found some results as follows. Paiwha's Hanok Dormitory had composed of 23 dormitories rooms, management space, sanitary space, dining space, etc. In living rooms division, there are three types of rooms, and it's room was 4~5 pyung(坪) in size and using area per person was 1pyung. Besides all rooms were connected by a corridor. The structure was 5-ryang(樑) type without high column or with one high column. Looking at structure and the shape of the roof on the historic photos, it seems to be a lower roof slope than other traditional house because of reducing its weight. But its span between two columns was wider relatively.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.27
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• pp.69-95
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• 2005

East Asia has played an important role in the economic and social development in the Asian pacific region and in the global arena. In the region the impact of companies centralizing their logistics activities around a few distribution centers has already led some leading ports such as Singapore, Hong Kong to transform and expand their functions and business activities to provide port users with value added logistics services. Other ports in the region also have an important part to play in the total logistics Chain. In these environments, the maritime activities of Jang BoGo, who was the maritime king of the commercial maritime empire in East Asia in the 9th century, give many implications to the international logistics network strategy that Korea has to take in order to become a power of International Logistics. Though the trading and economic environments at that time may be quite different from today, the super-national maritime management pattern that Jang Bo-go, founder of the Northeast Asian maritime trading kingdom devised, gives us many implications in the global trading and economic environments, in the respects of overseas direct investment and international logistics. Accordingly, the paper aims to examine the establishment of hub port in Northeast Asia, modelled after the maritime network management strategy of Jang BoGo.

• Journal of architectural history
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• v.21 no.5
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• pp.47-56
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• 2012

This research focuses on the role of Giovanni Marinioni during the formation of the modern cartography and cadastre during the 18th century. Initial study began with Giambattista Nolli's Roman map noticing not much information was available to acknowledge his activities during his Milan period before the departure to Rome. It became evident that Marinoni was a key person to understand the complex circumstances in which the professional training and formation of Giambattista Nolli took place as later worked as an anonymous intern during the elaboration of Theresian Cadastre of Milan. The other important figures are Leandro Anguissola and Giovanni Filippini. Anguissola's position and precedent work facilitated Marinoni's multidisciplinary activities that he had performed in Vienna and Milano in the field of making urban maps of those two cities. On the other hand, Filippini not only collaborated with Marinoni but also introduced Nolli in the field of cartography. These activities show transitional and dual aspects that characterized the period in which important irreversible changes that occur during the reign of Habsburg empire and in the rest of the Europe toward the formation of modern society and state. Marinoni's theories and praxis greatly influenced Nolli's later commitment under the Savoia and later on the elaboration of the 'Pianta Grande di Roma' in 1748.

• Journal of architectural history
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• v.26 no.6
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• pp.77-88
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• 2017

Ordinary people generally bury or burn placenta when the baby was born. But, Joseon royal family put placenta in pot and then buried it in propitious site praying for good health and long life. After that baby had become the king of Joseon, people built stone figures formed fixed type at that place. It is called gabong-taesil(加封胎室). The purpose of this study is to figure out the type and characteristics of the King Taejo's taesil in Joseon Dynasty. The King Taejo's taesil had built first as soon as Joseon was established circa 1393, and repaired largely in 1689. Since then, this was damaged by the Japanese Empire and assembled in recent days at near place from the original place. Center piece of taesil remains the original form, and the rest of stone figures is assumed to be rebuilt in 1689. But, some materials like sangseok(裳石) and jeonseok(磚石) are assumed that are original stone figures or were made, assembled by the style of then. Considering most of remained taesil is a relic of the latter part of Joseon Dynasty, the King Taejo' taesil has high cultural value as the first gabong-taesil of Joseon Dynasty inheriting Goryeo Dynasty type.

• Journal of Fashion Business
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• v.7 no.4
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• pp.105-120
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• 2003

Culture and society exist in the present, but they came from the past. So did clothing. As dressing is deeply based on culture pattern of the times, it is affected by various culture patterns and still keeps developing in modern times. This study is intended to examine the features of retro fashion on culture and dressing of the 19th century. The features of retro fashion on Neoclassical and Romantic culture and dressing are objection to the existing pattern, recursion to the past, and creativity characteristic of pattern of those days. Neoclassicism arose as it rejected Baroque and Rococo style, and imitated culture and artistic pattern of Greece and Rome. Romanticism objected to formal and universal pattern of Neoclassicism, and imitated Gothic style while recognizing historical facts and studying medieval times. Dressing in Neoclassicism did not accept exaggerated and luxurious Rococo pattern, and imitated simple, soft and straight silhouette of Greece and Rome and created its unique Empire Style. Romanticism imitated luxurious style of Renaissance, the Middle Ages, Baroque, and Rococo, different from simple and straight neoclassical style during the Bourbon restoration, and created its unique style. Thus, it is shown that retro fashion on Neoclassical and Romantic culture and dressing reflect the style of those days.

• Nuclear Engineering and Technology
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• v.49 no.5
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• pp.996-1005
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• 2017

In this paper, nuclear data for cross sections of the $^{64}Zn(n,2n)^{63}Zn$, $^{64}Zn(n,3n)^{62}Zn$, $^{64}Zn(n,p)^{64}Cu$, $^{66}Zn(n,2n)^{65}Zn$, $^{66}Zn(n,p)^{66}Cu$, $^{67}Zn(n,p)^{67}Cu$, $^{68}Zn(n,p)^{68}Cu$, and $^{68}Zn(n,{\alpha})^{65}Ni$ reactions were studied for neutron energies up to 40 MeV. In the nuclear model calculations, TALYS 1.6, ALICE/ASH, and EMPIRE 3.2 codes were used. Furthermore, the nuclear data for the (n,2n) and (n,p) reaction channels were also calculated using various cross-section systematics at energies around 14-15 MeV. The code calculations were analyzed and obtained using the different level densities in the exciton model and the geometry-dependent hybrid model. The results obtained from the excitation function calculations are discussed and compared with literature experimental data, ENDF/B-VII.1, and the TENDL-2015 evaluated data.

• Interdisciplinary Bio Central
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• v.5 no.4
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• pp.7.1-7.3
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• 2013

This essay describes G. Mendel's life and his law of inheritance. He was born in a poor family in 1822 in a hamlet in Czechs. At that time the Habsburg Empire dominated over the East Europe in which Vienna was the capital. Vienna had thus been the center of culture and learning, and attracted many artists and scholars such as W. Mozart (1756- 1791), L. Beethoven (1770-1827), C. Doppler (1803-1853), S. Freud (1856-1939), G. Mahler (1860-1911), G. Klimt (1862-1918) and E. Schiele (1890-1918). Beethoven came to Vienna to learn from Mozart. Klimt was influence by Schilele. When Mahler consulted Freud about his mental problem, Freud said to him "Your mental condition was not normal, but the condition made you creative. So, do not worry too much about it." Like that, there were many interactions among them, and Mendel was no exception. Though Mendel was poor, he was fortunate in his education and scientific research, because he could have excellent supporters in his family and out of it. He learned mathematics and physics at Vienna University under the guidance of C. Doppler. He was not totally alone when he discovered his law of inheritance. It may not be true either that his law was neglected and rediscovered in the year of 1900. As his one and only paper indicates, he was one of the earliest interdisciplinary scientists.

• Journal of Fashion Business
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• v.10 no.2
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• pp.147-165
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• 2006

The purpose of this study was to develop design of maternity dress combined with nursing. Six maternity wears combined with nursing were developed through the literature, preceding studies, and web sites those were about pregnancy, breast feeding, a maternity wear, and a nursing wear. The results of this study were as follows: 1. In order to develop clothes of diverse styles and designs, an after five dress, a poncho style blouse, wrap culotte as well as a skirt suit, a pants suit, an one-piece dress were designed. 2. It was established to make more amounts of front ease than those of back ease and to supplement a frontal hanging portion in consideration of breast development and abdominal prominence. 3. In order to make use of a maternity wear after a birth, stretch fabric was used for an abdominal part or whole clothes. Also an empire line and pleats, a poncho style, a shirts blouse, and inserting a string were used for it. 4. the fabrics of cotton, mixed cotton, polyester were used because pregnant women and nursing mothers perspires more than others do. 5. The horizontal, vertical, diagonal slits for a breast feeding were made. The storm flap of a trench coat, a machine pleated fabric, a poncho, a bolero style were used for a nursing cover.

• Journal of architectural history
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• v.29 no.2
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• pp.53-62
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• 2020

This study focuses on the architectural changes of stele pavilion at the royal tombs of Joseon Dynasty. Throughout the survey on overall forty two stele pavilions, they were classified into basic type, expanded type, and 4-side corridor type. Basic type was usually used for general small stela, while expanded type was for extraordinarily large ones. 4-side corridor type, however, turned out to be used for both small and large stela and has appeared only during King Gojong period(高宗年間, 1863-1907). When it was first applied at Geonwolleung(健元陵) in 1870s, the purpose of 4-side corridor type seemed to stabilize the enlarged structure due to the size of the larger stele. Later, 4-side corridor type was repeated for small stela at Hongneung(洪陵) and Yureung(裕陵) in 1898 and 1904 respectively, to express higher dignity of Daehan Empire(大韓帝國). This type of plan continued to other pavilions in the center of Seoul such as Kinyeombijeon(紀念碑殿) and Seokgojeon(石鼓殿) that were built in 1903 with sophisticated proportion and multiple brackets. This architectural change implies that stele pavilion itself has become more significant than stele inside.