This study investigated the empty set which is one of the mathematical objects. We inquired some misconceptions about empty set and the background of imposing empty set. Also we studied historical background of the introduction of empty set and the axiomatic system of Set theory. We investigated the nature of mathematical object through studying empty set, pure conceptual entity. In this study we study about the existence of empty set by investigating Alian Badiou's ontology known as based on the axiomatic set theory. we attempted to explain the relation between simultaneous equations and sets. Thus we pondered the meaning of the existence of empty set. Finally we commented about the thoughts of sets from a different standpoint and presented the meaning of axiomatic and philosophical aspect of mathematics.
The purpose of this study is to analyze the conflicts caused by the spatial expansion in two types of urban heritage in Seoul. To explain the national and professional orientation found in each spatial transformation, the study brought the concept of 'historic state' and 'epitome,' thereby examining the operating system of the conflicts. Field observations and stakeholder interviews were performed based on literature and historical research. The study results are as follows. ①In the case of Gwanghwamun and Donuimun, the spatial expansion is to find the historic state of the sites. Gwanghwamun with high national status and substance, conflicts show a pattern that spreads to memory conflicts. Donuimun is relatively unknown and has no substance so that a flexible method of digital restoration was applied. ② In the case of Ikseon-dong and Bukchon hanok, they show heterogeneous spatial expansion. The conflicts in relation to this is caused by the epitome of hanok. In Ikseon-dong, illegal installation of structures(non-epitome) is prevalent, while in Bukchon, there was a process of transferring the new basement(non-epitome) as part of the hanok. ③Conflicts in Gwanghwamun can be coordinated by referring to the digital restoration of Donuimun, and conflicts in Ikseon-dong can be resolved by taking Bukchon as a precedent.
Interaction between sedentary and nomadic cultural traditions has played an important role in the centuries-old history of applied arts in Uzbekistan. By the late 19th and early 20th century, driven by urbanization in the region and the gradual transition of nomadic and semi-nomadic peoples to sedentary lifestyles, many industries and traditional cultural forms of formerly nomadic ethnic groups disappeared. Nevertheless, their role in shaping the national cultural identity of the Uzbek people is great. This is true in relation to one of the largest ethnic groups in Uzbekistan, the Kungrats, whose applied art represents a unique, viable, and yet little-studied phenomenon in the national culture of Uzbekistan. The article reviews carpet weaving, one of their surviving crafts, exemplified by qiz-gilam, a unique type of rug made using a combined technique. This study helps to show the nature of historical and cultural interrelations in the carpet weaving of Central Asian peoples and their cultural contacts with the carpet art of neighboring regions more widely and objectively. An important theoretical result of this study is the creation of criteria and tools for identifying qiz-gilam carpets. This allows us to bring clarity to the yet undeveloped system of their identification in museum and gallery practice.
An intensive analysis of 185 timings of WZ Cep, including our new three timings, was made to understand the dynamical picture of this active W UMa-type binary. It was found that the orbital period of the system has complexly varied in two cyclical components superposed on a secularly downward parabola over about 80y. The downward parabola, corresponding to a secular period decrease of $-9.{^d}97{\times}10^{-8}y^{-1}$, is most probably produced by the action of both angular momentum loss (AML) due to magnetic braking and mass-transfer from the massive primary component to the secondary. The period decrease rate of $-6.^{d}72{\times}10^{-8}y^{-1}$ due to AML contributes about 67% to the observed period decrease. The mass flow of about $5.16{\times}10^{-8}M_{\odot}y^{-1}$ from the primary to the secondary results the remaining 33% period decrease. Two cyclical components have an $11.^{y}8$ period with amplitude of $0.^{d}0054$ and a $41.^{y}3$ period with amplitude of $0.^{d}0178$. It is very interesting that there seems to be exactly in a commensurable 7:2 relation between their mean motions. As the possible causes, two rival interpretations (i.e., light-time effects (LTE) by additional bodies and the Applegate model) were considered. In the LTE interpretation, the minimum masses of $0.30M_{\odot}$ for the shorter period and $0.49M_{\odot}$ for the longer one were calculated. Their contributions to the total light were at most within 2%, if they were assumed to be main-sequence stars. If the LTE explanation is true for the WZ Cep system, the 7:2 relation found between their mean motions would be interpreted as a stable 7:2 orbit resonance produced by a long-term gravitational interaction between two tertiary bodies. In the Applegate model interpretation, the deduced model parameters indicate that the mechanism could work only in the primary star for both of the two period modulations, but could not in the secondary. However, we couldn't find any meaningful relation between the light variation and the period variability from the historical light curve data. At present, we prefer the interpretation of the mechanical perturbation from the third and fourth stars as the possible cause of two cycling period changes.
Archival objects produced in relation to the activities of public institutions hold the inexpressible symbolism, historical value, and esthetical value as well in that the values of display and reuse of archives materials in the future are high as figures. The revised law of Archives Act in 2007 has provided a foundation for managing the archival objects in every public organization, by also including archival objects into the category of archives produced and registered in relation to their works. Although it could be seen as a reforming will to aim at the differential approach from the past to recognize the archival objects as records and make the managing will documented, it is still in an unprepared state to define the concepts on archival objects and to have methods to systematically manage and preserve them. Thus this paper has researched on the type classification of archival objects and their evaluation, as way of developing the methods for the management system for archival objects. On the premise that it should be preceded by clear definitions of concepts and distinctive understanding of their types first in order to build up the management system for archival objects, definition and type classification of the archival object have been attempted, based on the actual research materials and the current relevant laws. In addition, this study has analyzed the characteristics of selecting archival objects in order to search for which one they should obtain and manage among archival objects produced and reused in relation to the works of public institutions. On the basis of this, the plans for the national selection system and provision of selecting criteria for the subjects of permanent preservation have been suggested in this study.
This thesis is based on two points in Min-yisheng's idea: 1, knowing, consciousness, and differentiation of mind, according to which 2, Zheng-jidou's dividually observe to the same and different points of liangzhi and consciousness. Min-yisheng and the scholar on Yangming Theory named Zheng-jidou are arguing about the rights and wrongs of the Yangming Theory, the key concept of which is the same and different points of liangzhi and consciousness. At the extension of this argument, Min-yisheng also argues with Jin-chagnxie about the same and different points of knowing and consciousness. When argue with Zheng-jidou about Yangming Theory, Min-yisheng disproves the saying of "mind is principle" and "syncretism of consciousness and behavior" as well as defines liangzhi, which is the key concept of Yangming Theory, as a consciousness different from the natural principle. While disputing with Zheng-jidou about the relation between liangzhi and consciousness, Min-yisheng begins to pay attention to the relation between knowing and consciousness focused in the academy at that time. And as a result of that he also has a dispute with Jin-chagnxie about the same and different points of knowing and consciousness. The dispute between Min-yisheng and Jin-chagnxie is actually about how to look at the relation of knowing and consciousness, from the point of "non-mixed" or the point of "inseparable". Jin-chagnxie emphasizes on the un-mixed of knowing and consciousness while Min-yisheng, from the point of "inseparable", sees the consistency of the two. This thesis focuses on the argumentation of "the same and different points of liangzhi and consciousness" and "the same and different points of knowing and consciousness", the difference of the two positions and the historical meaning of this argument in ideologies.
We Koreans are very proud of this nation's cultural history over some five millenniums. But most of the relics found in the nation date back up to two thousand years. Under this circumstance, we are wondering the gap and missing of three thousand years. In our traditional literature of history, [Chiwoo] was a military god of supreme dignity and virtue. He was a symbol of brave and strong warriors and since the antiquity, he has been kept alive deeply in the mind of the Korean race. Considering findings through this study, the researcher could provide a conclusion as described below. 1) The name of Paekje's designed tiles was initially made by a Japanese scholar who had first found the antique relic. According to studies by a few of Korean researchers, the name is usually called despite its relation with a historical background of the excavated objects has not been fully studied. 2) After the patterned objects of the Korean antique Kingdom, Japanese researchers reported that [Chiwoo] was a military god as exorcist and probably represented something in the form of a ghost, although there were arguments that the military god was the very being to influence the image of the ghost. This report suggests that the Japanese community didn't downgrade the military god onto the level of a ghost. 3) One of our antique nations, Paekje at that time sought to determine the origin and culture of the Koreans by making multiple exchange relations with China, and probably accepting cultures of the Chinese Han nation and those of the Chinese South and North Dynasty period. Based on findings from a relevant literature, [Sulyigi], people of Paekje attempted to show express the image of Chiwoo in their own unique ways and then deliver the strong bravery of [Chiwoo] to us, or their descendents. This can explain that those findings as above mentioned are consistent with the designed tiles of Paekje, and that the tiles should not be named as the design of ghost. 4) The designed tiles involved elements of Taoism and Buddhism and substantially considered the spirit of four gods which was mobilized for the tomb construction and selection at that time. But this should never be a reason why all of the horned figures seen in tomb wall paintings are collectively treated as ghosts. 5) From the view of historic literature, we can no doubt say that the Heavenly Emperor [Chiwoo] was our ancestor. It is not better to say that the relic stuffs as excavated should be referred to the design of ghost image only in that they have yet to be associated historically with other relics. This claim would be newly changed as it becomes clear with historical remains that our antique ancestors kept doing positive activities along the coast of the antique kingdom, Balhae.
The knitting, which has developed from the onset of human civilization, has a close relation to dwelling as well as to clothing itself. Its progress has taken shape in a variety of forms according to nature-friendly tools and its knit texture in the past is different from that of modern times. With this basic idea, the work aims at the further study of various knitting structure which triggered the origin of modern techniques, the establishment of those methods, and the finding of what means was utilized earlier based on these. By doing that, this study will provide the foundation in the Korean historical timeframe in knitting field and give definition to knit wear in a historical sense. As to definition, the outcome in the research boils down to two categories. broad meaning and narrow meaning. The former can be the hook-formed textile, referring to making, twisting, or binding the knots. On the other hands, the latter, that is, narrow type, can be the loop-linked fabric which can be defined as modern knitting. The knitting dates back to the ancient way of binding structure, combining structure in other words, and braiding structure and this kept dividing into subgroups like Netting. Nalbinding, Sprang and Crochet as the usage of hands and tools by mankind has got improved. And it changed into knitting and crochet which means a bamboo needle-hook knitting (larger needle type) and a crochet-hook knitting (smaller needle type), respectively through middle ages and modern times and settled down to the production of fabric. In this work, Netting, Nalbinding, Sprang and Crochet are classified as ancient category in which these originate the modern knitting method. Though the modern type of knitting is not found in the Joseon Dynasty, some various methods from the ancient twisting skill and binding skill where the materials with easy access to acquisition in the nature such as rattan, straw, horsehair, hemp, rush, cotton, silk and the like to Netting, Nalbinding and Sprang except Crochet were handed down and used in costume for diverse application. This work can provide the basic frame in terms of Korean history of knitting which has been excluded in the relevant researches until now. When applying the study, it would trigger the initiation of more versatile design with which the previous unique techniques along with modern techniques can be adopted in the clothing market as knit designs gain in public favor more and more.
Architectural style is said to be product reflecting political, social and cultural condition. Especially, in colony, architectural style is strongly related to political condition or policy. After colonization in 1910, public buildings with western historical architectural style in Japanese version were widely built by Japanese colonial government in Korea. And in the late 1920s, modernism style in architecture became dominant in Korea as like other countries. In this situation, curious buildings in strange architectural styles came out. One example is railroad station buildings with traditional Korean architectural style and timber house station having a steep roof which is widely used in North Europe such as Alps area with good sights and mountains. Generally, the colonizer says that colonization is the only way to save the colony at crisis defined by colonizer and they insist that they can help the colony modernize. To justify colonization, the colonizer attributes the colonization to the characteristics of the nation and stagnation of the traditional culture etc.. Accordingly, the colonizer tries to depreciate colony's traditional value and culture. In case of colony which has similar cultural background historically (in this case, economical exploitation is less important than other Asian colony by European power), this depreciation of traditional value and culture in Korea was done more strongly than others. At this time, we should understand special relation between Korea and Japan historically. Even though, colony's locality is adopted by the colonizer in public fields, which is based on political purpose or exotic taste etc.. In early days of Japanese ruling period, Japan never use the Korean traditional facts in public. Therefore there is no use of Korean traditional architectural style in public field. In late 1920s, some railroad station buildings were constructed in new styles without precedence in modern Korea. One is railroad station buildings in Korean traditional architectural style, the other is railroad station buildings in timber house stations having a steep roof which is different form western historical architectural style. It was mystery that Japan had constructed railroad stations in Korean traditional style which Japan had tried to destroy together with Western style railroad station buildings. This paper is made to solve the mystery why the colonizer(Japan) constructed entirely different types of railroad stations at the same time in the late 1920s and 1930s. The key point to solve this mystery is tourism. In this paper, to solve this mystery, I try to use terminology' 'Colonial Tourism' in architecture why colonial power had constructed railroad stations with colony's traditional architectural style and Western style having a steep roof which can be seen north European region.
The World Summit on the Information Society (WSIS) was held in two phases. The first phase took place in Geneva, December 2003, and the second phase took place in Tunis, November 2005. The objective of the WSIS was to establish the foundations for an Information Society for all, reflecting all the different interests at stake. In relation to, this article explore the vision and paradigm of WSIS. For this, this article review the historical context of International information order and International agreements, and examine the issues of WSIS. As a result, I recognize, It is valuable that the process of WSIS for Global governance was held among governments and other stakeholders, i.e. the private sector, civil society and international organization. In addition, developing countries's voice are deeply reflected on the WSIS. It is noticeable that ITU played key role as coordinator. However, we are anxious that WSIS's vision for Information society have a bias toward Technology determinism. Eventually, this article argue that WSIS discourse is the lack of any serious and critical structural analysis of the politico-economic context.
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