• 제목/요약/키워드: non-central elements

검색결과 41건 처리시간 0.026초

부산권역 어항의 도시형 어항 개발 가능성 평가 (Estimating the Development Potential of Urban Fishing Ports in the Region of Busan, Korea)

  • 김영표;유창일;윤한삼;김헌태
    • 수산해양교육연구
    • /
    • 제19권3호
    • /
    • pp.355-365
    • /
    • 2007
  • This study examined the essential elements of urban fishing ports in the region of Busan in terms of the hydrography, geomorphology, and urban functions of each fishing port and then estimated their development potential. The results were as follows: (1) The ports in the eastern and central parts of the Busan region, used mostly for fishing, were open or quasi-open type ports with ${\Omega}>0.8$, while those of the western part tended to show the reverse. (2) Of the 51 fishing ports, 37.3% were located on land inside the coastline, and structures such as breakwaters had been constructed on both sides of the entrance. Of the total, 47.1% were small fishing ports with water depths of 0~1 m. (3) In the Busan region, 39.2% were urban fishing ports, including Daebyeon and Dadaepo, and 60.8% were non-urban fishing ports.

ON COMMUTING GRAPHS OF GROUP RING ZnQ8

  • Chen, Jianlong;Gao, Yanyan;Tang, Gaohua
    • 대한수학회논문집
    • /
    • 제27권1호
    • /
    • pp.57-68
    • /
    • 2012
  • The commuting graph of an arbitrary ring R, denoted by ${\Gamma}(R)$, is a graph whose vertices are all non-central elements of R, and two distinct vertices a and b are adjacent if and only if ab = ba. In this paper, we investigate the connectivity, the diameter, the maximum degree and the minimum degree of the commuting graph of group ring $Z_nQ_8$. The main result is that $\Gamma(Z_nQ_8)$ is connected if and only if n is not a prime. If $\Gamma(Z_nQ_8)$ is connected, then diam($Z_nQ_8$)= 3, while $\Gamma(Z_nQ_8)$ is disconnected then every connected component of $\Gamma(Z_nQ_8)$ must be a complete graph with a same size. Further, we obtain the degree of every vertex in $\Gamma(Z_nQ_8)$, the maximum degree and the minimum degree of $\Gamma(Z_nQ_8)$.

현대 패션 밈(meme)에 관한 사례연구 (A case study on the contemporary fashion meme)

  • 김고운
    • 복식문화연구
    • /
    • 제28권3호
    • /
    • pp.330-343
    • /
    • 2020
  • This study defines the concept of the fashion meme, which has recently emerged as a fashion trend, influential fashion keyword. After analyzing the concepts and characteristics of traditional memes from prior studies, examples of fashion memes were collected from online community and social network services, while a literature study and case study analysis were conducted in parallel drawing on related articles and journals. Modern fashion memes refer to fashion-related symbols and fashion images that are spread online by word-of-mouth, together with fashion styles and items that spread as a result of being worn. Fashion memes in cyberspace are mainly spread through social network or message services, and sometimes combine text, images, videos, hashtags, and emoticons. Fashion memes are a type of collective action of the people in response to social problems in the world, and often involve humorous antics, satire, shock, and eccentricity. Shared fashion memes reflect the expression of personality expression and fun, and at the same time are used as an expression of designer and brand creativity and are integral to marketing. Fashion memes are classified into four types, based on two central axes as follows: non-commercial/commercial and anti-fashion/fashion-friendly. Unlike traditional memes, Internet-based fashion memes emphasize elements of transformation through creativity as well as imitation, which has become a persisting contemporary trend beyond temporary phenomena.

경성부청사 실내공간의 표현 특성에 관한 연구 (A Study on the Expressive Characteristics of the Interior of the Kyungsung Municipal Government Building)

  • 오인욱
    • 한국실내디자인학회논문집
    • /
    • 제19권3호
    • /
    • pp.103-110
    • /
    • 2010
  • As ongoing construction of a new municipal government building leads to the destruction of the interior of the Kyungsung Municipal Government Building(currentlySeoul Metropolitan City Hall) despite its enormous historic value, this study aims to identify the unique features of spatial composition and interior design of the Kyungsung Municipal Government Building, which is widely known as a typical example of public architecture of the 1920s. The primary goal is to perform a systemic arrangement of its interior data and define the modern historic implications of its interior design, thereby laying the foundation for a compilation of the history of modern interior design. From a historical perspective, the Kyungsung Municipal Government Building-an explicit symbol of Japanese colonial supremacy-has served as the administrative hub of a hugecity for 19 years during the Japanese colonial rule and for 64 years following Korea's independence from Japan. From the perspective of architectural history, it also represents modern transitional buildingsin their shift from historicism into modernism, as manifested by its reasonable placement of interior space matching well with topographical form, easy access by citizens, open office space, and, excluding decoration, a simple and non-authoritarian exterior. Its interior design style follows Western historicist architecture, whereasits simple interior decoration embodies expressive characteristics of pragmatic simplicity. Such elements are notably found in the Grand Central Hall, the Municipal Head's Reception Room, and the Grand Conference Room.

키네티시즘의 '움직임' 지각을 통한 체험적 감성 공간 특성에 관한 연구 (A Study on Characteristics of Experiencing Sensibility Space in The Perception of Kineticism 'Movement')

  • 김준영;윤재은
    • 한국실내디자인학회논문집
    • /
    • 제19권3호
    • /
    • pp.67-76
    • /
    • 2010
  • Recently the trend that human emotions become central is strongly on the rise beyond functions in the area of space. In the present situation, the current study is to examine the characteristics of experiential space of emotions through an approach to space appearing in kinetic art paying attention to the fact that the new spatial expressions and forms of Kineticism lie in introduction of 'movement' as a phenomenon that humans who are main agents of experiences can perceive. For research methods, spatial expressions were proposed according to each characteristic extracting characteristics to create space through 'movement' of Kineticism, and the features of experiential space of emotion were elicited by analyzing sensible elements and perceptual characteristics which stimulate human sensitivity through expressive aspects of 'movement' appearing in the case. As a result, it was found that characteristics appeared including immersion through non-daily stimulation, empathy through visual·perceptual stimulation, syn-aesthetic experiences through stimulation of thinking senses, and perceptual activation through physical movement etc. Namely, the present study has its meanings in seeking another directions and possibilities as emotional space to activate experiencers' diverse perceptions and senses by analyzing the characteristics of experiential emotional space through 'movement' of Kineticism which is one of modern plastic arts.

카오스 변조와 역지향성 안테나를 이용한 통신 보안 향상 기법 (The Communication Security Improvement Technology Using Chaos Modulation and Retrodirective Array Antenna)

  • 복준영;김기영;유흥균
    • 한국전자파학회논문지
    • /
    • 제24권4호
    • /
    • pp.410-416
    • /
    • 2013
  • 본 논문에서는 통신의 보안성과 수신 성능 향상을 위해서 역지향성 안테나를 이용한 CDSK 변조 방식을 제안한다. 카오스 신호는 신호의 비주기성과 비예측성으로 향상된 보안성을 제공한다. 그러나 카오스 변조 방식은 자기 신호와 간섭 신호로 인해서 수신 성능 열화가 발생한다. 본 논문에서는 카오스 신호 기반 CDSK 변조 방식을 사용하면서도 수신 성능을 유지할 수 있도록 역지향성 안테나를 적용한 카오스 통신 시스템의 성능을 분석한다. 시뮬레이션 결과, 5개의 배열 안테나 소자를 사용하여 역지향성 안테나를 구성할 경우, 제안한 시스템은 향상된 보안성을 제공하며, BPSK 변조를 사용한 통신 시스템과 동일한 수신 성능을 얻는 것을 확인할 수 있다.

Functions of TET Proteins in Hematopoietic Transformation

  • Han, Jae-A;An, Jungeun;Ko, Myunggon
    • Molecules and Cells
    • /
    • 제38권11호
    • /
    • pp.925-935
    • /
    • 2015
  • DNA methylation is a well-characterized epigenetic modification that plays central roles in mammalian development, genomic imprinting, X-chromosome inactivation and silencing of retrotransposon elements. Aberrant DNA methylation pattern is a characteristic feature of cancers and associated with abnormal expression of oncogenes, tumor suppressor genes or repair genes. Ten-eleven-translocation (TET) proteins are recently characterized dioxygenases that catalyze progressive oxidation of 5-methylcytosine to produce 5-hydroxymethylcytosine and further oxidized derivatives. These oxidized methylcytosines not only potentiate DNA demethylation but also behave as independent epigenetic modifications per se. The expression or activity of TET proteins and DNA hydroxymethylation are highly dysregulated in a wide range of cancers including hematologic and non-hematologic malignancies, and accumulating evidence points TET proteins as a novel tumor suppressor in cancers. Here we review DNA demethylation-dependent and -independent functions of TET proteins. We also describe diverse TET loss-of-function mutations that are recurrently found in myeloid and lymphoid malignancies and their potential roles in hematopoietic transformation. We discuss consequences of the deficiency of individual Tet genes and potential compensation between different Tet members in mice. Possible mechanisms underlying facilitated oncogenic transformation of TET-deficient hematopoietic cells are also described. Lastly, we address non-mutational mechanisms that lead to suppression or inactivation of TET proteins in cancers. Strategies to restore normal 5mC oxidation status in cancers by targeting TET proteins may provide new avenues to expedite the development of promising anti-cancer agents.

Monitoring of Ambient Air Particles and Inorganic Elements in China and Korea during an Asian Dust Storm

  • Park, Eun-Jung;Kim, Dae-Seon;Park, Chung-Hee;Song, Sang-Whan;Lee, Byung-Hoon;Hong, Yun-Chul;Pan, Xiaochuan;Wang, Jin-Gyu;Zhang, Yi-Xiang;Park, Kwang-Sik
    • 한국환경보건학회지
    • /
    • 제36권5호
    • /
    • pp.360-372
    • /
    • 2010
  • Concentrations of ambient air particles such as total suspended particulates (TSP), particulate matter $(PM)_{10}$, and $PM_{2.5}$, were monitored simultaneously from May to June, 2007, at four locations at Alashan and Beijing in China, and Seoul and Gosan in South Korea. These monitoring sites are in the pathway of Asian dust (AD) storms traveling from China to the Korean peninsula. An AD event was observed in the Korean peninsula on May 25-26. During the sampling period, the average concentrations of TSP and PM10 were each higher than $150\;{\mu}g/m^3$ in Alashan and Beijing, but not in Seoul and Gosan. The concentration of TSP in Alashan (where the dust storm originated) on the day of the AD event reached $1824.7\;{\mu}g/m^3$, this being the highest concentration of air particles observed during the sampling period. The level was decreased to 15% of this ($274.7\;{\mu}g/m^3$) in Seoul and to 8.7% ($159.0\;{\mu}g/m^3$) in Gosan when the AD was observed two days later in Korea. Gosan, a representative background site in East Asia, displayed the lowest concentration of particles, with this maximal TSP concentration of $159\;{\mu}g/m^3$. Inorganic element contents in the air particles were also measured, and the concentrations in the four different regions compared. Concentrations of anthropogenically-enriched heavy metals in $PM_{10}$ and $PM_{2.5}$, such as lead, arsenic, cadmium, and mercury, were higher in the metropolitan cities of Beijing and Seoul compared to non-industrialized regions of Alashan and Gosan. However, the concentrations of inorganic soil elements including iron, magnesium, aluminum sodium, and manganese, were higher in Alashan compared to those in other sampling sites.

태백산(太白山) 광화대(鑛化帶) 중부지역(中部地域) 페그마타이트에 대한 지화학적(地化學的) 연구(硏究) (Geochemical Study on Pegmatites in Central Region of Taebaek Mineralized Area)

  • 최성훈;지정만
    • 자원환경지질
    • /
    • 제23권1호
    • /
    • pp.35-57
    • /
    • 1990
  • This study has been carried out on the Pegmatites, Naedeogri Granites, Nonggeori Granites and Metasedimentary rocks in the middle area of Taebaeksan region to investigate the geochemical properties and possibility of productivity. Pegmatites are characterized by metamorphosed anatectic pegmatite and differentiated magmatic pegmatite, and are mixed type of rare-element pegmatite and mica-bearing pegmatite by the classification of Ginsburg(1979). The petrological type of the igneous rocks is thought to be calcalkali, subalkaline and peralumious. According to chemical variations against D. I., differentiation trends from Naedeogri and Nonggeori Granites through non-mineralized pegmatites to mineralized pegmatites are supposed. From the relationship between oxided and $SiO_2$, pegmatites and Nonggeori Granite have shown similar tendencies and bulk composition of pegmatites and similar to metasedimentary rocks near the intrusives. By judging the correlations of trace elements, it is elucidated that pegmatites adjacent to Naedeogri and Nonggeori Granites have been originated in magma differentiation from these granites and the others have been differentiated by remelting or partial melting from metasedimentary rocks. $Sp_5$, $Sp_8$, and $Sp_9$ pegmatites are considered as productive rocks, and $Sp_4$, $Sp_6$, $Sp_7$, $Sp_{10}$, $Sp_{11}$, and $Sp_{12}$ pegmatites and granites are supposed to have a weak productivity, in terms of element ratios related with Sn mineralizations. Tourmalines in productive pegmatites are formed under the circumstance of Li-poor granitoids and associated with pegmatites, and the others are seemed to be originated in metapelites and metapsammites which are not coexisting with an Al-saturating phase. Three types of chemical zoning are noticed in tourmalines: (1) apparently homogeneous compositional patterns, (2) a continuous core-to-rim zoning and, (3) a discontinuous core-to-rim zoning. From results of EPMA of tourmalines, Al, Mg and Ca increase closer to rim, while Fe decreases.

  • PDF

중재판정의 기판력에 관한 고찰 (A Study on the Res Judicata of Arbitral Awards)

  • 서세원
    • 한국중재학회지:중재연구
    • /
    • 제17권2호
    • /
    • pp.3-21
    • /
    • 2007
  • Arbitration is a private and contractual means of dispute resolution. As a creature of contract, any particular arbitration owes its existence-and attendant limitations-to an arbitral agreement. This means that, in practice, the parties select their own judges, forum, and rules. By agreeing to arbitration, parties hope to achieve several goals. And arbitration has proven to be quicker, cheaper, and more predictable than litigation as a means of resolving many types of claims. As a primary method of conflict resolution, it is now worthwhile to consider carefully any procedural mechanism designed to promote the central aims of this alternative to litigation. It is helpful to frame any particular analysis according to (1) the type of decision for which preclusive effect is sought (arbitral award or court judgment) and (2) the type of subsequent proceeding in which preclusion is sought (an arbitration or a litigation). Res judicata may well bar litigation of that claim between the parties, but non-parties (affiliates or individuals) will not benefit from this bar unless the arbitral tribunal makes findings sufficient to satisfy the elements of collateral estoppel. The final permutation to be considered involves an arbitral award's preclusive effect on a subsequent arbitration. Whether a prior court decision should preclude issues or claims in a subsequent arbitration presents the easiest case for analysis. It is the easiest primarily because there is generally little room to debate whether adequate procedures were followed in a litigation. That is, one can safely assume that the rules of evidence and the rules of civil procedure were followed and that formal records sufficiently memorialize both the proceeding itself and the ultimate decision. Procedural regularity is mentioned not necessarily because it is an analytic tool, but because so many jurists and scholars see it as an impediment to the application of preclusionary doctrines.

  • PDF