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The Analysis of Successional Trends by Topographic Positions in the Natural Deciduous Forest of Mt. Chumbong (점봉산(點鳳産) 일대 천연활엽수림(天然闊葉樹林)의 지형적(地形的) 위치(位置)에 따른 천이(遷移) 경향(傾向) 분석(分析))

  • Lee, Won Sup;Kim, Ji Hong;Jin, Guang Ze
    • Journal of Korean Society of Forest Science
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    • v.89 no.5
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    • pp.655-665
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    • 2000
  • Taking account of the structural variation on species composition by topography, the successional trends were comparatively analyzed for the three topographic positions (valley, mid-slope, and ridge) in the natural deciduous forest of Mt. Chumbong area. The analysis was based upon the subsequent process of generation replacement by understory saplings and seedlings over the overstory trees which will be eventually fallen down. This study adopted the plot sampling method, establishing twenty $20m{\times}20m$ quadrats and collecting vegetation and site data on each different topographic position. The transition matrix model, which was modified from the mathematical theory of Markov chain, was employed to analyze the successional trends and thereafter to predict the overstory species composition in the future for each different topographic position. In valley, the simulation indicated the remarkable decrease in the proportion of species composition of present dominants Quercus mongolica and Fraxinus mandshurica from current 23% and 21% to around 4% of each at the steady state, which is predicted to take less than 200 years. On the other hand, the proportion of such species as Abies holophylla, Acer mono, Tilia amurensis, and Ulmus laciniata will increase at the steady state. In mid-slope, the result showed the remarkable decrease in the proportion of Juglans mandshurica, Kalopanax pictus, and Tilia amurensis from current 15%, 8%, and 15% to 2%, 1%, and 5%, respectively, at steady state predicted to take more than 250 years. In ridge, the current dominant Quercus mongolica was predicted to be decreased dramatically from 58% to 8% at steady state which could be achieved about 200 years. On the contrary, the proportion of Acer mono and Tilia amurensis will be increased from current 4% and 3% to more than 20% and 40%, respectively, at the steady state. Overall results suggested that the study forest is more likely seral rather than climax community. Even though a lot of variation is inevitable due to various kinds of site and vegetation development, the study forest is considered to be more than 200 years away from the steady state or climax in terms of overstory species composition.

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China's Military Rise and Regional Maritime Security - Its Neighbors' Strategic Calculations and Various Contingencies - (중국의 군사적 부상과 역내 해양안보 - 주변국의 전략적 대비 및 유사를 중심으로 -)

  • Kim, Taeho
    • Strategy21
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    • s.33
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    • pp.113-147
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    • 2014
  • While China's military rise is an issue of growing importance to regional security, it is worthwhile to note that it is not China's military modernization per se, but its capacity to project and sustain power along and beyond its borders--in particular, the possibility to resolve forcefully its outstanding maritime disputes and various contingencies. This essay argues that China's "anti-access capability"--a U.S.-coined term originally developed for a Taiwan contingency--is equally applicable to other major regional cases such as the Spratly disputes and a North Korean contingency. Furthermore, notwithstanding China's continuos efforts to develop and deploy various types and classes of weapons/platforms, it is the Russian systems and technologies that are most capable and thus likely assigned to the highest mission-critical areas. In assessing China's current and likely future military capability as well as their implications for the region, it is necessary to take note of the following: • There exists asymmetry of military capability between China and its weaker neighbors. While the PLAN is weak in several important aspects, for instance, many of its neighbors' navies are weaker still. • Some have argued that China's foreign policy behavior apparently became more "assertive" in 2009-2013, but it is wiser to keep in mind that China has almost always been assertive and aggressive when it comes to what China defines as "sovereignty and territorial issues" as well as its newest "core interests." • On the South China Sea disputes it is the function of U.S. presence in the theater--in the form of overseas bases and the freedom of navigation--and the PLA's own limitations to project and sustain power for an extended period of time that have largely prevented armed. • While Taiwan remains the idee fixe of China's diplomacy and military, it is and will be a tough nut to crack. China's recent creeping attempts for economic integration with Taiwan should be seen in this context. • China and Japan, the two regional heavyweights and traditional rivals, will likely have a bilateral relationship that is replete with difficulties and tension. China's unilateral announcement of its ADIZ in November 2013 as well as the occasional yet persistent disputes with Japan over the Senkaku/Diaoyudao/Diaoyutai islands are only the latest manifestation of this deeper and difficult relationship. • For Korean security it is imperative to take into account the geostrategic and historical factors. On top of the existing military threats from North Korea, the ROK should be able to employ a) hedging strategy, b) "limited defense sufficiency" strategy, and c) rock-solid relations with the United States.

Freezing and Bearing Capacity Characteristics of Road Foundations under Temperature Condition (온도조건에 의한 도로하부 지반의 동결 및 지지력 특성)

  • Shin, Eun-Chul;Kim, Sung-Hwan;Park, Jeong-Jun
    • Journal of the Korean Geotechnical Society
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    • v.28 no.3
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    • pp.5-14
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    • 2012
  • In the current design codes for anti-freezing layer, the thickness of anti-freezing layer is calculated by freezing depth against the temperature condition. Therefore, they have a tendency of over-design and uniform thickness without the considerations of thermal stability, bearing capacity and frost susceptibility of materials. So, it is essential for studying the appropriateness and bearing capacity of road foundation materials as well as their seasonal and mechanical properties to take an appropriate and reasonable design of the road structure system. In this paper, the freezing and bearing capacity characteristics of typical road foundation materials were evaluated in the large scale laboratory test. LFWD (light falling weight deflectometer) was used to determine the change of elastic modulus ($E_{LFWD}$) caused by to the frost heave and thaw. Furthermore, the influence of crushed natural aggregate on the freezing of the subgrade soil was studied to verify the function and effectiveness of the anti-freezing layer.

Survival of Patients with Lung Cancer, Yazd, Iran

  • Zahir, Shokouh Taghipour;Mirtalebi, Maryammosadate
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.9
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    • pp.4387-4391
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    • 2012
  • Background: Lung carcinoma is the leading cause of cancer mortality worldwide. Although the 5-year survival rate nearly tripled from 5-15% over the last 25 years, the estimated number of deaths still exceeds 1.3 million annually. The overall 5-year survival of lung cancer is only 10% in Europe and 15% in the United States. The aim of the current study was to determine the long-term survival and the effect of certain prognostic factors on survival of patients with lung cancer in Yazd city, Iran. Methods: In this cross-sectional descriptive study, we retrospectively reviewed hospital records and follow-up data of 148 patients with histological proven lung cancer using the cancer data registered between 1998 and 2005 in the pathology department of Shahid Sadoughi educational hospital, Yazd, Iran. Data were extracted from patient documents that included sex, age, clinical manifestations, histopathological report of the tumor and type of treatment given. Results: Overall survival time in all patients was 8.5 months after diagnosis and there was no significant difference in survival according to sex (p=0.958). Histological analysis revealed that squamous cell carcinoma was the most common histologic type (35%). Kaplan-Meier statistical methods estimated the average survival time for SCC to be better (22.6 months) in comparison with the other types of histology (all of them below 10 months). There was a trend towards significance between type of histology and duration of survival (p=0.08). Conclusion: It is reasonable to expect that early lung cancer detection, and appropriated treatment, may improve surgical morbidity and mortality. Low survival of lung cancer in our center patients show our shortages in screening programs for early diagnosis. Designing studies with larger sample size that take some other variables like staging of patients is now necessary.

The Representativity Expressed by Men′s Fashion in the End of a Century (세기말 남성패션에 나타난 표상성)

  • 김소영;양숙희
    • The Research Journal of the Costume Culture
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    • v.8 no.2
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    • pp.197-204
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    • 2000
  • With the current of the end of a century and social, economic, political, and cultural turbulence, people take advantage of the various ways to express their stagnation. This study introduces the term representativity and it will explain the men's fashion of the end of a century. On a theoretical basis, the concept of the representativity, image, symbol and imitation which are used as a tool for expression will be examined, and together with this, inner representation and outer representation will be categorized. The inner representation of the men's fashion in the end of a century can be taken for the purpose of connecting the image of masculinity. The image of masculinity is widely spread owing to the mass communication of a consumption-oriented society, so its hard to define that image as one thing specific. Hence, in order to discuss the male gender and mens fashion, New Man phenomenon should be noticed of. 1980's New Man influence has lasted till now. New Man images were largely categorized into two images like New Lad and Iron John after the mid 1990's. Therefore, the image of masculinity is largely classified New lad, who desires success and pursues the hedonistic life style and Iron John, who enjoys thrill and follows economical life style. The image of masculinity has influence on the outer representation how it is imitated and symbolized via many designer's works and street fashion. Two masculinity images are dominant over the men's fashion of the end of a century. One is inhumane and rational corporate power look that stems from symbolization and imitation of New Lad. The other is outdoor casual that originated from the symbolization and imitation of Iron John.

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A Study on Attitudinal Constructs Influencing on Olympic Sponsorship (올림픽마케팅에서의 스폰서십 효과에 관한 연구)

  • Chun Myung-Hwan;Kim Woo-Hui
    • Management & Information Systems Review
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    • v.9
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    • pp.139-163
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    • 2002
  • While the corporate practice of sponsoring major events has existed since the turn of the century, it has only recently become one of the fastest growing areas of advertising and promotion. Despite its long history and recent growth, however, event sponsorship has yet to receive the same kinds of rigorous theoretical and methodological attention that marketing researchers have devoted to other areas of advertising and promotion. Also, the recent Olympic Games in Sydney serve as excellent showcase of the sponsorship phenomenon. On the hand it becomes very clear that an event of such magnitude cannot take place without the commercial support of the sponsors. At the same time, there is a growing concern that the Olympic Games are losing their spirit and are over-commercialized because of the excessive sponsorship-linked marketing activities. At the centre of the debate is the impact and the reaction of the consumers to the growing use of sponsorship to stage major events. While the Olympic Games might be an extreme example of the growth and impact of sponsorship, the proliferation of the phenomenon is widespread across other sports events as well as other cultural and community based events. But a comprehensive model of sponsorship is not currently available in the literature. This research is the aim of the current research to investigate consumer attitude constructs towards sponsorship such as sport involvement, attitude towards the event, attitude towards commercialization. The results still have potentially significant applied and theoretical implication. First, This investigation is the first known effort, grounded in consumer behavior theory, to model antecedent variables believed to influence consumer response to event sponsorship in Korea. Second, these findings are in line with previous research, as sports involvement attitude towards the event, and attitude towards commercialization are found to be significant influences on respondents' ability, motivation and opportunity to process sponsorship information, as well as directly and indirectly impacting emotional response.

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ANALYSIS OF GRAVITATIONAL WAVE EXPERIMENTAL DATA WITH DISTRIBUTED COMPUTING (분산 컴퓨팅을 이용한 중력파 검출을 위한 데이터 분석)

  • Lim, Soo-Il;Lee, Hyung-Mok;Kim, Jin-Ho;Oh, Sang-Hoon;Lee, Sang-Min
    • Publications of The Korean Astronomical Society
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    • v.22 no.2
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    • pp.43-54
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    • 2007
  • Many gravitational wave detectors are now being built or under operation throughout the world. In particular, LIGO has taken scientific data several times, although current sensitivity is not sufficient to detect the weak signals routinely. However, the sensitivities have been improving steadily over past years so that the real detection will take place in the near future. Data analysis is another important area in detecting the gravitational wave signal. We have carried out the basic research in order to implement data analysis software in Korea@home environment. We first studied the LIGO Science Collaboration Algorithm Library(LAL) software package, and extracted the module that can generate the virtual data of gravitational wave detector. Since burst sources such as merging binaries of neutron stars and black holes are likely to be detected first, we have concentrated on the simulation of such signals. This module can generate pure gravitational wave forms, noise suitable for LIGO, and combination of the signal and noise. In order to detect the gravitational signal embedded in the noisy data, we have written a simple program that employs 'matched filtering' method which is very effective in detecting the signal with known waveform. We found that this method works extremely well.

Current Status of Applied Korean Patents Regarding the Deep Sea Water (해양심층수 관련 국내 특허출원 동향)

  • Chung, Kap-Taeck;Lee, Sang-Hyun
    • The Korean Journal of Food And Nutrition
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    • v.22 no.2
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    • pp.261-271
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    • 2009
  • Deep sea water exists at depths of over 200m under the sea. As no sunlight reaches it, photosynthesis does not take place within it, and it contains no organic matter. In addition, its temperature is maintained at a stable low level throughout the year, so it does not get mixed with the sea water on the surface. It contains a large amount of nutritious salts, whose cleanness is maintained. It is a marine resource that has matured for a long period of time. Research into deep sea water, which started in the 1970s, has been made around the whole world, including the USA and Japan. In Korea, research has been active in this area since 2000. As there has been a good amount of research into industrial applications for deep sea water, since 1993, patents for the relevant technologies have been applied. This paper intends to provide a resource to researchers of deep sea water, by summarizing of all domestic deep sea water-related patents applied with Korean Intellectual Property Office from 1993 to 2008. This research was conducted using a computer and KIPRIS Database owned by the Korea Institute of Patent Information. 'Deep sea water' was used as the search keyword. A total of 222 Korean patents relating to deep sea water have been registered on the basis of IPC. Of these, 126 patents relate to the manufacturing and the treatment of foods, foodstuffs, or non-alcoholic beverages(A23L), while 50 patents relate to the production for medical, dental, or cosmetic purposes(A61K). 38 patents relate to water purification, treatment of wastewater, sewage and sludge (C02F), while 8 patents relate to fishery and farming(A01K). In summary, it was found that studies for the practical use of deep sea water have been conducted in relation to the manufacturing and the treatment of foods, foodstuffs, beverages, and cosmetics.

A Study on the ecological characteristics of the 'traditional house' and how it is ecologically applied from a natural aspect (자연성에 근거한 전통주거건축의 생태학적 특성과 적용에 관한 연구)

  • 한경희;김자경
    • Korean Institute of Interior Design Journal
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    • no.25
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    • pp.236-244
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    • 2000
  • The concept of the true house' is based on the balance of a person's life and nature and represents the life in which lies an organic harmony between environment and ecology. However, humans have always been in a position of dominance over nature and with their developments have brought on much destruction and corruption to the ecosystem. With this, the position of the true house has intensified and the ecological approach of architecture has started to come into consideration as its alternative plan. Accordingly, it is essential to reconstruct and take on a new perspective of nature. The conversion to a more Oriental approach, which dwells in the adaptation and harmony of nature, is especially sufficient to the ecological aspect of architecture. From this we can realize that the ecological approach is none other than a modern interpretation of what our ancestors have lived by. In other words, an architectural concept deriving from the adaptation of climate, season, and nature-the coexistence of man and nature. From an ecological point of view, the idea of favoring nature in the traditional house can be found in the inclination of being one with nature by adapting to its geographical and preferable climate conditions. This results in the use of natural energy, the use of natural resources, the organic connection between the inner and outer natural space, and the application of nature itself. By approaching these elements from a modern point of view and applying it to the current time, we can open up the door to a more lasting human-environment based ecological position of architecture where our own climatic characteristics and traditions can be reflected in the pursuit of harmony between man and nature.

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A Study on Analysis of Actual Condition of Physical Living Environment for the Challenged People (장애인 생활환경실태 조사연구)

  • Lee, Sung Kyu;Jung, Eun Young
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.12 no.3
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    • pp.43-51
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    • 2006
  • This study was from the survey on the items related to the challenges, the activity frequency of the challenged people and the places where these activities take place and the satisfaction and the demands on the facilities for the challenged people from 1,284 challenged people over the age of 20 living in Korea nation wide. From the survey, it was shown that the biggest demand lied in the improvement of the facilities related to the transportation and access for their residence and social activities. They felt they are inconvenient for the perspective of the implementation rate. Additionally, they had high desire for culture and physical educational activities. Improvements to provide convenient environments where the challenged people can access to and use the facilities as conveniently as unchallenged people do by minimizing the physical hindrances are urgently needed. For time being, many facilities for the challenged people was supplied to improve the physical environments for challenged people, however, foreign regulations had to be adopted for these job due to insufficient date on physical conditions of the challenged people in Korea. Moreover, current facilities for the challenged people emphasized more on physical aspect and the facility itself without the considerations on the overall environments, as result the improvement satisfaction and efficiency were low. More flexible and humane design approaches are needed instead of relying on supply rate and try to fully consider the characteristics of the challenged people without any discrimination.

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