• 제목/요약/키워드: Chronological Changes

검색결과 114건 처리시간 0.027초

A/R CDM을 위한 북한지역의 산림변화 연구 (A Study on Forest Changes for A/R CDM in North Korea)

  • 이동근;오영출;김재욱
    • 한국환경복원기술학회지
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    • 제10권2호
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    • pp.97-104
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    • 2007
  • A/R CDM(Afforestation/Reforestation Clean Development Mechanism) in Kyoto Mechanism means, either afforestation in the area used for other purposes more than 50 years or reforestation in the area used for other purposes on December 31st in 1989. South Korea has few sites due to the successful forestation in the past, but North Korea has not reforested the deforested lands since the mid-1970's. So these areas need to apply A/R CDM Project for restoration. The purposes of this study are to make a time series analysis in deforested areas and to estimate a feasibility of A/R CDM. To find the site satisfying A/R CDM business definition, land cover classification was applied using satellite images of the mid-1970's with good forestation, late 1980's including A/R CDM base year, and recent 2000's, and the chronological change was analyzed to categorize the possible sites. The North Korean topographical map of 1977 was used to verify land cover classification degree of 1970's, the land cover classification results made by the Ministry of Environment in 2000 were compared to verify the accuracy of 1980's results, and the land cover classification results in 2000's were verified by 2 site visits. The results of this study can be summarized as follows. The eligible A/R CDM sites are 605,156ha on the basis of the forestation change analysis in North Korea. Since the mid-1970's, 30.8% of the decreased forestation area of 1,966,306ha was classified into A/R CDM eligible sites. While other countries have the limited eligible sites, which has not been used for forestation since 1989 or which is being scattered, North Korea has large scale sites. Deforested sites are mainly around road and residential area, consequently give better accessibility for forestation than other countries. In conclusion, it is found that North Korea can provide efficient site for applying A/R COM Project to forestation restoring deforested land because of easy accessibility and existence of many possible sites due to artificial deforestation. Also, it is meaningful that the study suggests the application possibility of A/R COM Project to restore deforested land in North Korea and the related basic information through the chronological classification of the mid-1970's with good forestation, the late-1980's including A/R COM base year, and recent 2000's. It is expected that the study contributes to revitalization of A/R CDM Project and related research on North Korea forestation.

2004년 전국 위암 등록사업 결과 보고 (2004 Nationwide Gastric Cancer Report in Korea)

  • 대한위암학회 정보전산위원회
    • Journal of Gastric Cancer
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    • 제7권1호
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    • pp.47-54
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    • 2007
  • 목적: 대한위암학회 정보전산위원회는 국내 위암의 임상병리학적 양상과 치료 방법에 대한 시대적 변화를 파악하고자 2004년에 위암으로 수술받은 환자들에 대하여 전국조사를 실시하였다. 대상 및 방법: 2004년에 위암으로 수술받은 환자들의 자료를 57개 병원으로부터 수집하였으며, 2002년에 보고되었던 1995년과 1999년의 자료와 비교하였다. 14개 항목(성별, 나이, 위암의 위치와 크기, 육안형, 접근방법, 근치도, 수술종류, 재건술, 국제보건기구 분류 및 Lauren 분류, UICC 병기분류, 전이 및 절제림프절 개수)이 분석되었다. 연중 시행하는 위암수술 규모에 따라 57개 병원을 네 군(1군, <100; 2군, ${\geq}100$ 및 <200; 3군, ${\geq}200$ 및 <500; 4군, ${\geq}500$)으로 나누어 임상항목들을 군간에 비교하였다. 결과: 2004년에 위암으로 수술받은 환자들 11,293명의 자료가 57개 병원으로부터 수집되었다. 남녀비는 2.05:1(7,586/3,705)이었고, 평균 연령은 58.0세였다. 호발연령분포에 있어서 남녀 모두 최근으로 올수록 증가하는 양상을 보였다. 조기위암의 비율은 2004년에 47.4%로 1995년의 28.6%, 1999년의 32.8%에 비해 증가하였다. 절제림프절의 평균개수는 34.0개(1군 32.8개, 2군 34.0개, 3군 36.1개, 4군 32.9개)였다. 결론: 조기위암이 1995년과 1999년에 비해 2004년에 증가하였다. 절제림프절 개수로 볼 때 위암 수술은 병원규모에 무관하게 적정 림프절 절제를 동반한 수술이 이루어지고 있었다. 향후 이 보고가 위암의 진료 및 연구의 참고자료로 활용되기를 기대한다.

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Changes of myelin basic protein in the hippocampus of an animal model of type 2 diabetes

  • Nam, Sung Min;Kwon, Hyun Jung;Kim, Woosuk;Kim, Jong Whi;Hahn, Kyu Ri;Jung, Hyo Young;Kim, Dae Won;Yoo, Dae Young;Seong, Je Kyung;Hwang, In Koo;Yoon, Yeo Sung
    • Laboraroty Animal Research
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    • 제34권4호
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    • pp.176-184
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    • 2018
  • In this study, we observed chronological changes in the immunoreactivity and expression level of myelin basic protein (MBP), one of the most abundant proteins in the central nervous system, in the hippocampus of Zucker diabetic fatty (ZDF) rats and their control littermates (Zucker lean control; ZLC). In the ZLC group, body weight steadily increased with age; the body weight of the ZDF group, however, peaked at 30 weeks of age, and subsequently decreased. Based on the changes of body weight, animals were divided into the following six groups: early (12-week), middle (30-week), and chronic (52-week) diabetic groups and their controls. MBP immunoreactivity was found in the alveus, strata pyramidale, and lacunosum-moleculare of the CA1 region, strata pyramidale and radiatum of the CA3 region, and subgranular zone, polymorphic layer, and molecular layer of the dentate gyrus. MBP immunoreactivity was lowest in the hippocampus of 12-week-old rats in the ZLC group, and highest in 12-week-old rats in the ZDF group. Diabetes increased MBP levels in the 12-week-old group, while MBP immunoreactivity decreased in the 30-week-old group. In the 52-week-old ZLC and ZDF groups, MBP immunoreactivity was detected in the hippocampus, similar to the 30-week-old ZDF group. Western blot results corroborated with immunohistochemical results. These results suggested that changes in the immunoreactivity and expression of MBP in the hippocampus might be a compensatory response to aging, while the sustained levels of MBP in diabetic animals could be attributed to a loss of compensatory responses in oligodendrocytes.

성장기에서 관절융기 높이 및 경사의 연령적 변화 (Changes in height and inclination of the articular eminence during the growth period)

  • 최동순;장인산;차봉근
    • 대한치과교정학회지
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    • 제40권6호
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    • pp.411-420
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    • 2010
  • 관절융기의 높이와 후면의 경사는 교합과 긴밀한 관계를 유지하며 하악 운동 시 하악과두의 이동 경로를 결정하는 중요한 역할을 한다. 본 연구의 목적은 성장기 아동에서 연령별로 관절융기의 높이 및 경사의 변화를 평가하는 것이다. 양호한 골격을 보이는 5.9세부터 19.7세까지 총 160명(남자 71명, 여자 89명)의 대상자가 선정되었고, 이들의 측두하악관절 단층방사선사진에서 관절융기의 높이, 관절융기 후면의 경사가 측정되었다. 남녀 각각 9.0세 미만(Group 1), 9.0 - 10.9세(Group 2), 11.0 - 12.9세(Group 3) 13.0 - 14.9세(Group 4), 15.0 - 16.9세(Group 5), 17.0세 이상(Group 6)의 6군으로 나누었고, 그룹 간 비교를 위해 일변량분산분석, 남녀 간 비교를 위해 Mann-Whitney 검정을 실시하였다. 각 연령 그룹의 평균 관절융기 높이는 남자에서 4.8 mm, 6.1 mm, 6.4 mm, 7.0 mm, 8.0 mm, 9.2 mm 였고, 여자에서 4.8 mm, 5.4 mm, 6.4 mm, 6.9 mm, 7.6 mm, 7.1 mm 였다. 각 연령 그룹의 평균 관절융기 경사는 남자에서 $29.5^{\circ}$, $34.4^{\circ}$, $35.5^{\circ}$, $37.6^{\circ}$, $40.3^{\circ}$, $42.6^{\circ}$였고, 여자에서 $29.7^{\circ}$, $31.7^{\circ}$, $34.7^{\circ}$, $37.4^{\circ}$, $39.3^{\circ}$, $36.2^{\circ}$였다. 관절융기의 높이와 경사는 남자에서는 Group 5까지, 여자에서는 Group 4까지 유의성 있게 증가하였다. 남녀 간 비교에서는 Group 6에서만 남자가 여자보다 유의하게 컸다. 관절융기의 성장가속기는 여자가 남자보다 4년 가량 빨랐고, 남자는 여자보다 더 늦은 나이까지 성장하였다. 성장기 중 관절융기의 높이와 경사는 매우 많은 변화를 보였으며, 따라서 이 시기에 교정치료 시 기능적인 정상교합을 달성하기 위해서는 관절융기의 연령적 변화와 성장 양상을 이해하는 것이 중요하다고 생각한다.

3D C.G. 애니메이션에 반영된 문화적 이데올로기 - <슈렉>을 중심으로 (A study on the cultural ideology of narrative in 3D C.G. Animation )

  • 고은영
    • 만화애니메이션 연구
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    • 통권6호
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    • pp.7-22
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    • 2002
  • Animation constitutes the core of the media industry, which in turn lies at the center of the cultural industry. It is considered one of the industries where South Korea has the competitive edge over other countries. With the pool of customers getting wider, the genre of animation has become more and more diverse, forming a great market for it. Aware of this trend, this study focused on animation as a part of the pop culture, and on providing corresponding various viewpoints for future cultural studies. This researcher measured the practicality and persuasiveness of this study through Shreck, a three-dimensional C.G. animation which is acclaimed for its success in dismantling the old grammar of animation movies that represent the anti-Disney ideas. This researcher felt it imperative to heed the unique language of Shreck, which contains discourses on various cultural ideologies such as paradoxical structure that pits entertainment that is shown through dismantling of the canon, feminism and antifeminism against each other. This study analyzed the entertaining element of the animation genre by means of the Semiotics of Keith Moxey, thereby attempting to establish a legitimate social status of the genre, whose artfulness has been depreciated in the art society. In chapter II, this researcher examines the chronological development of three-dimensional C.G. animation that has shown a rapid advancement. Chapter III defines the cultural ideology of Shreck by exploring basic theories and texts employed in analysis of art works. This study started with the assumption that defines, from the viewpoint of symbology, the animation text as an aggregate of discourses on entertainment, and competitive and paradoxical ideologies. Then, this researcher analyzed the text and the generation process of meanings in Shreck. Consequently, this study has come to the following conclusions: First, Shreck induces changes of concepts about the canon by means of distorting and reversing the existing animation movies, which seems to reflect in the contemporary tendency of seeking new interpretations of entertainment. Second, Shreck shows up the cognitive changes of our age as to feminism by competing feminism against antifeminism. Although Shreck serves as a venue of competition between the two opposing ideas, it stops short of brushing off women as outsiders in society. Rather, it represents the resistance to the male chauvinism existing in the structures of animation and culture. As shown in the text analysis, Shreck presents an advent of a new ideology critical of the previous animation films. In addition, it reflects in the struggle between the pro-feminism on the part of the viewers and the anti-feminism that lies in the social and culture structure. This study, however, is limited in its scope and selection of subject. First, although this researcher has stressed the importance of understanding the animation as part of the pop culture and conducting researches within the historic paradigm, this study fails to provide an in-depth insight in the impacts that the changes in the C.G. industry and the systematic conditions may have on the three-dimensional C.G. animation genre. Furthermore, this study runs the risk of being understood as pro-American due to its selection of Shreck as its research subject.

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머름의 특성과 변천에 관한 연구 - 별당과 정자건축을 중심으로 - (A Study on the Characteristics and Periodical Changes of Meoreum - Focused on Byeoldang (Annexe) and Pavilion Architecture -)

  • 박일찬;이호열
    • 건축역사연구
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    • 제20권2호
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    • pp.7-22
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    • 2011
  • This study primarily aims to illuminate the characteristics of $Meoreum$ in Korean traditional fitting system according to the respective types and its periodical changes. Using the research findings as a chronological indicator by which to estimate the construction date of the building is the secondary purpose. In this study 42 of $Byeoldang$ and pavilion architecture remaining in $Yeongnam$ district were examined through the field surveys and methods of documentary research. The research results are as follows. First, $Meoreum$, which is located below the windows or doors, provides protection against the outer wind and has the function to prevent some warm air of the room from flowing outside. Second, $Meoreum$ was recorded as $Yoeum$(了音), $Woneum$(遠音), and $Maleum$(末音) in $Yeong-geon-ui-gwe$(營建儀軌) of Joseon period. While $Yoeum$(了音) was used in $Yeong-geon-ui-gwe$(營建儀軌) of 1776 and 1856, $Woneum$(遠音) had been also used continuously since the year of 1800. The word, $Maleum$(末音) can be seen in $Lim-won-gyeong-je-ji$(林園經濟志), published in 1827. $Woneum$(遠音) and $Maleum$(末音) seem to be the $Yi-du$(吏讀) types of expression of $Meoreum$ which is being extensively used now. Third, the kinds of $Meoreum$ can be classified as $TohMeoreum$, $TongMeoreum$, $TongpanMeoreum$, and $JjaneunMeoreum$. $TongMeoreum$ and $TohMeoreum$ were mostly used at the front part of $Ondol-rooms$, the backside of main floor called $Daechung$(大廳), and at the space between $Daechung$ and rooms in the Pavilions and $Byeoldangs$(Annexes) that had been built in the early Joseon dynasty. $TohMeoreum$ was usually used at the bottom parts of windows between $Daechung$ and $Ondol-rooms$. $TongpanMeoreum$ was mainly used in the mid-Joseon period and relatively high height was the distinctive feature of $Meoreum$ at that time. $Jjaneun$ $Meoreum$, used mainly in the late Joseon dynasty, has become lower and lower gradually in height since 19th century, so people could enter the room through the windows(fittings). Such changes in $Meoreums$ types has brought about the flow of human traffic directly from $Toenmaru$, narrow wooden porch running along the outside of a room to $Ondol-rooms$.

북한산성 지명의 분포와 변천: 『북한지(北漢誌)』 수록 지명을 중심으로 (The Distribution and Changes of the Place Names in Bukhansanseong : Focusing on the Place Names in Bukhanji)

  • 김순배
    • 한국지역지리학회지
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    • 제23권2호
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    • pp.325-353
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    • 2017
  • 본 글의 목적은 북한산성 안에 분포하는 지명들의 지리적 분포와 문화적, 역사적, 상징적 의미를 살펴보고, 나아가 지명 변천에서 나타나는 다양한 특성을 기초적으로 제시하는 것이다. 이를 위해 현존하는 지명 자료 중 가장 많은 북한산성 지명을 담고 있는 문헌으로 평가받는 "북한지(北漢誌)" (1745)를 중심으로 시대별 지명 자료를 수집하였고, 후부 지명소에 따라 자연 지명과 인문 지명으로 나누어 지명의 분포 및 유형에서 나타나는 특징들을 제시하였다. 아울러 '북한산' 등의 주요 지명들을 선정하여 지명의 의미와 그 변천 양상을 전부 지명소를 중심으로 기초적으로 분석하였다. 그 결과 삼국시대에 활발하게 통용되던 북한산이란 지명은 고려시대에는 삼각산, 조선시대에는 다시 '북한산' 및 '북산' 이란 지명으로 적극적으로 사용되었고, 1711년 북한산성이 축조되면서 북한산이란 지명 통용이 공식화되면서 지명 언중들에 의해 활발히 인식되었음을 확인하였다. 한편 "북한지"에 수록된 지명들이 자연 지명 중 산지와 하천 지형을 가리키는 지명들과 이러한 지리적 환경에 자리 잡고 있는 산성 관련 각종 인공 시설물 명칭들, 특히 이 책을 편찬한 승려 성능을 통해 동일시된 불교적 정체성과 이데올로기를 담은 불교 관련 지명들이 다수를 차지하고 있음을 확인하였다.

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R&D 네트워크 분석을 통한 PD 제도 효과 연구 (A Study of PD System Effectiveness based on R&D Network Analysis)

  • 박미연;이상헌;심홍매;임춘성;김우주
    • 한국전자거래학회지
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    • 제20권3호
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    • pp.29-46
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    • 2015
  • 정부의 연구개발에 대한 기획 정책이 변화함에 따라 국가 R&D 지식 네트워크가 어떻게 변동하였는지에 대해 살펴보고자 한다. 이를 위해 본 연구는 산업통상자원부의 산업융합원천 기술개발사업에 참여하는 각 주체들 간의 네트워크를 시기별로 분석하였다. 산업융합원천기술개발사업의 기획 정책은 2012년 전후를 기점으로 바뀌게 되는데 2012년 이전에는 '기획위원' 중심으로 기획 과제를 선정하다가 2012년 이후에는 'PD' 중심으로 과제를 기획하는 시스템으로 바뀐다. 이에 따라 우선, '기획위원' 제도에 따른 R&D 네트워크를 분석하고자 2009년부터 2011년까지의 현황을 살펴보고, 이후 'PD' 제도도입에 따른 R&D 네트워크 변동을 분석하고자 2012년부터 2013년까지의 현황으로 시기를 나누어 분석하였다. 분석 결과 PD 제도 도입 이후 셀프관계(기획자가 본인이 기획한 과제를 과제 참여자로 직접 수행하는 형태)가 대폭 개선되는 등 효과가 나타났음을 파악할 수 있었다. 셀프관계가 많을수록 신진학자에게는 기획의 불평등이 존재한다는 점을 고려할 때 PD 제도의 도입은 긍정적인 효과를 가져왔다고 볼 수 있다. 이러한 연구는 정부의 기획 정책 변화에 따른 효과를 계량적으로 분석하여 성과를 제고하고 향후 R&D정책의 방향을 제시한다는 점에서 의미가 있다고 본다.

Changes of Quality of Life after Gastric Cancer Surgery

  • Kong, Horyon;Kwon, Oh Kyung;Yu, Wansik
    • Journal of Gastric Cancer
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    • 제12권3호
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    • pp.194-200
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    • 2012
  • Purpose: The aim of this study was to evaluate chronological change of quality of life after surgery in patients with gastric cancer during one year postoperatively. Materials and Methods: Quality of life data were obtained from 272 gastric cancer patients who underwent curative gastrectomy between September 2008 and February 2011 at the Kyungpook National University Hospital. The Korean versions of the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire Core (QLQ) 30 with gastric cancer-specific module, the EORTC QLQ-STO22 were used to assess quality of life. All patients had no evidence of recurrence or metastasis during the first postoperative year. Patients were asked to complete the questionnaire, by themselves preoperatively, 3-, 6-, 9-, and 12-months postoperatively. Results: Physical functioning score and role functioning score significantly decreased at first 3 months after surgery and the significant differences were noticed until 12 months after surgery. Emotional functioning score started with the lowest score before surgery and significant improvement was shown 6 months after surgery. Most symptom scores and STO-22 scores were highest at 3 months after surgery and gradually decreased, thereafter. Eating restriction, anxiety, taste, body image scores was highest at 3 months after surgery without significant decrease afterwards. Conclusions: Most scales worsened after surgery and gradually recovered afterwards with some differences in rate of recovery. However the scales did not fully recover by 1 year period. Further follow-up after 1 year would be helpful in determining which scales are permanently damaged and which are just taking longer time to recover.

4차 산업혁명의 스마트 키친 연구 - IOT 주방가구와 주방가전의 개발사례를 중심으로 - (A Study on Smart Kitchen of the 4th Industrial Revolution - Focusing on IOT Kitchen Furniture and Kitchen Electric Appliances -)

  • 오미현;김종서
    • 한국가구학회지
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    • 제28권4호
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    • pp.268-277
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    • 2017
  • This paper analyzed the modern trends and the present state of kitchen furniture and electric appliances depending on the advancement in IOT technology, in order to contribute to seeking a method of approaching consumers as an effective way for kitchen furniture and electric appliance companies to develop IOT products. Prior to analysis, the chronological transitions of Korean kitchen furniture and examined the effects of Korea's own emotions and characteristics on modern kitchen. For this study, the changes in Korean kitchen space were explored, based on previous studies, recent trend magazines, articles and professional books and the trends of modern kitchen furniture were observed. Also, the concept of IOT technology was considered and then the tendencies of modern IOT kitchen furniture and electric appliances were analyzed. The case study targeted the recent three-year trends of two types of domestic kitchen furniture and small-sized IOT kitchen electric appliances, which are sold, or have been introduced on foreign online stores and have been unveiled at CES Electric Appliances Exhibition. As a result of the study, it was found that many foreign countries, including the US have been developing various IOT kitchen electric appliances. The enterprise concept is to change kitchen with their IOT products, not changing future kitchen with IOT technology. This implies that approaches to product development may change. Moreover, it was recognized that for kitchen design, characteristics of product users need to be considered, according to Korean ideology.