• Title/Summary/Keyword: 고생태

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Conodont Fauna and Its Paleoecology of the Middle Carboniferous System in Taebaek Area, Gangwon, Korea (강원도 태백 지역의 중기 석탄계의 코노돈트와 고생태)

  • Park, Soo-In;Oh, Jae-Kyung
    • Journal of the Korean earth science society
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    • v.21 no.3
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    • pp.337-348
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    • 2000
  • The Middle Carboniferous Manhang and Geumcheon formations in Taebaek area consist of sandstones, shales, and limestones. The limestones of the formations contain abundant conodonts, fusulinids, crinoids, brachiopods, bryozoans, corals, etc. This study was carried out to investigate the microfacies of limestones and conodont faunas of the formations and to determine their paleoecology in detail. The limestones of the Manhang and Geumcheon formations of the study area consist of wackestone and packstone which are composed of crinoid fragments and other various fossil fragments. Some limestone beds of the Geumcheon Formation consist of only Chaetetes corals which indicate that the limestones deposited in a warm shallow sea. Conodonts found from limestones of the Manhang Formation are Neognathodus bothrops, N. medexultimus, Hindeodus minutus, Diplognathodus coloradoensis, D. edentulus, Idiognathodus delicatus, Streptognathodus elegantulus, and S. sp. And conodonts found from the limestones of the Geumcheon Formation are Neognathodus medexultimus, N. roundyi, N. dilatus, Gondolella bella, Diplognathodus coloradoensis, D. edentulus, Hindeodus minutus, Idiognathodus delicatus, and Streptognathodus elegantulus. Among these conodonts, Diplognathodus coloradoensis, D. edentulus, and Hindeodus minutu, are found generally from limestones which deposited in the shallow seas. According to the limestone facies and conodont faunas of the Manhang and Geumcheon formations of the study area, it can be concluded that the limestones of the formations deposited in the shallow sea.

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테마 인터뷰-반크 박기태 대표

  • Korea Venture Business Association
    • Venture DIGEST
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    • s.51
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    • pp.10-11
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    • 2004
  • 사라진‘동해’를 다시 살려낸 것으로 유명한 사이버외교사절단‘반크’는 전세계를 대상으로‘한국 바로 알리기 프로젝트’를 진행하고 있다. 초등학생부터 중∙고생, 직장인까지 1만 3650여 명의 회원이 반크를 통해 펼치는 나라 사랑이 진하다. 아직도 대부분의 사람들은 애국을‘나와는 먼 이야기’로 생각하고 있다. 하지만 반크는 애국이란 어느 특별한 날 불쑥 솟아오르는 감정이나 그에 따른 행동이 아니라 누구나 평소에 실천할 수 있는 것이라고 말한다.

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백악기 영동층군에서 산출된 구과류 화석의 특징과 고기후적 의미

  • Seo Ji-Hye;Kim Jong-Heon
    • 한국지구과학회:학술대회논문집
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    • 2006.02a
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    • pp.239-244
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    • 2006
  • 충청북도 영동 지역에 분포하는 영동층군은 옥천변성대에 있는 소규모 퇴적분지중의 하나이다. 영동층군의 지질과 고생물에 관한 연구는 옥천변성대의 조구조운동과 관련한 퇴적분지 발달 규명과 아울러 경상분지와의 상호대비가 가능케 함으로써 이 시기의 한반도의 지질을 이해하는데 있어 매우 중요한 정보를 제공해 줄 수 있다(김규봉 등, 1986). 영동층군의 층서고생물학적 연구는 김규봉 등(1986), 전희영 등(1993), 최성자 등(1995)등의 연구가 있다. Shimamura (1927)는 영동층군에서 케이로레피드과(Cherolepidiaceae)에 속하는 식물화석의 산출을 처음 보고하였다. 이후 전희영 등(1993), 최성자 등(1995)이 영동층군에서 케이로레피드과에 속하는 식물화석을 다시 보고함으로써 영동층군에서 식물화석이 많이 산출될 가능성이 확인되었다. 본 연구에서는 식물화석의 연구에 중점을 두고 야외지질조사를 통하여 영동층군의 기존 화석산지와 새로운 화석산지로부터 많은 식물 화석을 채집하였다. 식물 화석은 모두 인상화석으로 보존되었으며 세일층의 층리면에 평행하게 밀집된 상태로 나타나지만 대부분 파편상으로 나타난다. 식물화석은 고환경이나 고생태에 대한 중요한 단서를 제공하고 과거의 기후를 알려주는 중요한 지시자로 사용되고 있다. 특히 케이로레피드과의 식물은 백악기의 대표적인 고기후의 지시자로서 잘 알려져 있다. 케이로레피드과의 식물은 분류상 구과류에 속하며 백악기에 걸쳐 세계적인 분포를 보이고 있는 화석이다. 본 연구는 영동층군에서 산출된 구과류 화석을 대상으로 고생물학적 연구를 수행하여 산출화석의 특징을 기재하고 체계적으로 분류함으로써 산출화석의 고식물학적 의미를 밝히고자 하였다. 또한 산출 화석의 특징과 지질학적 특징을 통해 중생대 백악기 영동지역의 고기후를 해석함으로써 고기후적 및 고생태학적 의미를 연구해 보고자 하였다.에서는 시스템 등급에 영향을 준다. 향후에는 더욱 더 다양한 상호의존 모델들이 정량화될 필요성이 있다고 본다. 진행하였다. 줄여서 보다 더 정확하고, 지능적인 규칙구성요소 추출 방법론을 제시하고 구현하여 지식관리자의 규칙습득에 대한 부담을 줄여 주고자 한다. 도움을 받을 수 있게 되었다.을 거치도록 되어있다. 교통주제도는 국가의 교통정책결정과 관련분야의 기초자료로서 다양하게 활용되고 있으며, 특히 ITS 노드/링크 기본지도로 활용되는 등 교통 분야의 중요한 지리정보로서 구축되고 있다..20{\pm}0.37L$, 72시간에 $1.33{\pm}0.33L$로 유의한 차이를 보였으므로(F=6.153, P=0.004), 술 후 폐환기능 회복에 효과가 있다. 4) 실험군과 대조군의 수술 후 노력성 폐활량은 수술 후 72시간에서 실험군이 $1.90{\pm}0.61L$, 대조군이 $1.51{\pm}0.38L$로 유의한 차이를 보였다(t=2.620, P=0.013). 5) 실험군과 대조군의 수술 후 일초 노력성 호기량은 수술 후 24시간에서 $1.33{\pm}0.56L,\;1.00{\ge}0.28L$로 유의한 차이를 보였고(t=2.530, P=0.017), 술 후 72시간에서 $1.72{\pm}0.65L,\;1.33{\pm}0.3L$로 유의한 차이를 보였다(t=2.540, P=0.016). 6) 대상자의 술 후 폐환기능에 영향을 미치는 요인은 성별로 나타났다. 이에 따른 폐환기능의 차이를 보면, 실험군의 술 후 노력성 폐활량이 48시간에 남자($1.78{\pm}0.61L$)가 여자($1.27{\pm}0.45L$)보다 더 높게 나타났으며 (t=2.170, P=0.042), 72시간에도 역시 남자($2.1

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Effects of Students' Attitudes to Internet Media Language and Orthographic Knowledge on Their Use of Internet Media Language (초.중.고생의 인터넷 매체언어 태도와 맞춤법 지식이 인터넷 매체언어 사용에 미치는 영향)

  • Choi, Na-Ya;Han, Eu-Gene
    • Korean Journal of Child Studies
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    • v.31 no.5
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    • pp.31-45
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    • 2010
  • This study was conducted in order to investigate the effect of students' attitudes to internet media language and orthographic knowledge on their use of internet media language. The participants were 989 students in the 4th to 11th grades in Kyunggi-do. It was found that the participants used more internet media language in internet literacy than for general writing. Elementary students exhibited significantly less orthographic knowledge and used more internet media language to write on the internet than older students. Students' attitudes to internet media language went a long way to explaining their self-assessment on the frequency of using internet media language and their genuine use of internet media language on the internet. Their orthographic knowledge, however, was not a significant predictor for their use of internet media language.

A study on the types of attitude toward senile dementia (노인성 치매에 대한 태도 유형 연구)

  • Kim, Jee-Yeon;Jung, Jae-Bum;Park, Moon-Ho;Park, Kun-Woo;Choi, Moon-Gee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.10
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    • pp.3700-3706
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    • 2010
  • As the number of the elderly increases, concerns about senile dementia and serious game for dementia are growing. The purpose of this study is to explore the types of attitude toward senile dementia. To identify public attitudes toward senile dementia, we conducted Q methodology. A Q set of potential public attitudes toward senile dementia was identified through literature review. From this, 52 potential public attitudes toward senile dementia were identified. Twenty subjects ranked these explanations as possible public attitudes. The attitudes toward senile dementia were classified as 4 types : 'type1 : idealistic & expectant', 'type 2 : aversive & defensive', 'type 3 : active & realistic', and 'type 4 : responsible & compensatory'. This study revealed that people have different explanatory frameworks for the attitude toward senile dementia.

Attitudes toward Appearance and Body Satisfaction according to Uniform Modification Behavior of Middle and High School Girls (여중·고생들의 교복변형행동에 따른 외모에 대한 태도와 신체만족)

  • Park, Eunhee;Cho, Hyonju
    • Journal of Fashion Business
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    • v.19 no.4
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    • pp.168-182
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    • 2015
  • The purpose of this study is to classify students' attitudes towards uniform modification and analyze their subjective experience regarding appearance, and body satisfaction. Questionnaires were administered to 369 middle and high school girls living in Deagu Metropolitan City. Frequency, factor analysis, reliability analysis, correlation analysis, ${\chi}^2$-test, and t-test are all used for data analysis. Our findings are as follows. Two hundred thirty students (62.3%) agreed to modify their school uniforms to express their personalities and follow fashion trends. Motives for uniform modification had to do with social life, physical attractiveness, and practicality. Attitudes toward appearance are found to be shaped by appearance internalization, active management of appearance, appearance needs, social recognition, and conformity. The motives for uniform modification reveal a significant correlation with attitudes toward appearance. Uniform modification satisfaction differed depending on sub-variables of attitude toward appearance(active management of appearance, personalized appearance needs, social recognition, and body satisfaction, such as satisfaction with height and BMI). There was a significant difference in expression of intention for future plastic surgery depending on body image.

Importance and Application of Ichnology (생흔학의 중요성 및 활용)

  • Kim, Jong-Kwan;Chun, Seung-Soo;Baek, Young-Sook;Chang, Eun-Kyong;Shin, Sun-Ja
    • The Korean Journal of Petroleum Geology
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    • v.12 no.1
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    • pp.34-42
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    • 2006
  • Ichnology is the study of traces made by various organisms, which includes classification and description of traces, and interpretation of sedimentary process, behavior of organism and depositional environment based on traces and organism behavior. Ichnofacies, which is defined as the association of several traces related together with substrate characteristics and sedimentary processes, is closely related to depositional environment. Ichnology has been applied to sedimentology (to understand physical characteristics of depositional environment, sedimentation pattern and event bed), sequence stratigraphy (to recognize sequence boundaries and biostratigraphic discontinuities such as MFS, TSE and RSE), oil exploration (providing of many information without big cost) and palaeocology. Preliminary ichnological study on the Ganghwa intertidal flat shows that dominant ichofacies are changing with season and location, suggesting that their seasonal variation would be a good indicator to understand the seasonal change of sedimentary processes, the small- scale change of sedimentary environment and the preservation potential of such units. Ichnology on intertidal flat in western coast of Korea has a great potential to apply its results to petroleum geology as well as sedimentology.

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Phytogeographic study on the Holocene hypsithermal relict plant populations in the Korean peninsula (한반도 홀로세 기후최적기 잔존집단의 식물지리학적 연구)

  • Kim, Jin-Seok;Chung, Jae-Min;Kim, Sun-Yu;Kim, Jung-Hyun;Lee, Byoung-Yoon
    • Korean Journal of Plant Taxonomy
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    • v.44 no.3
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    • pp.208-221
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    • 2014
  • The Holocene Hypsithermal Interval(or climatic optimum) was the warmest post-glacial period: temperatures rose to as much as $1-4^{\circ}C$ above present temperatures. We hypothesize that southern plants expanded northward and upward during the Hypsithermal Interval. The Hypsithermal relict populations are defined as populations which distribute mainly in Is. Cheju and Southern subregions and have populations of short-distance dispersion separated by more than 100 km from the nearest distribution. The Hypsithermal relict species were identified and their distributions were mapped based on botanical floras and checklist, herbaria specimens, ecological studies, and field surveys of selected species. Evaluation of the hypothesis was based on reviews of published pollen stratigraphic and paleoecological studies. The results showed that the Holocene Hypsithermal relicts such as Corylopsis coreana Uyeki, Carpinus turczaninowii Hance, Stewartia koreana Nakai ex Rehder were expanded northward during the Holocene Hypsithermal Interval.

Geology and Metallic Mineral Resources of Sinaola State in Mexico (멕시코 시나올라주의 지질 및 금속광물자원)

  • Nam, Hyeong-Tae;Heo, Chul-Ho
    • Economic and Environmental Geology
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    • v.46 no.3
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    • pp.257-266
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    • 2013
  • The geology of Sinaola state consists of Precambrian metamorphic rocks(Sonobari Complex), two Paleozoic units(lower non-differentiated metamorphic rocks and upper Carboniferous sedimentary rocks), five Mesozoic units(metavolcanic, clastic, and calcareous rocks), Cenozoic volcanic rocks, and Quaternary clastic sediments and volcanic flows. The Sinaola state is potentially rich in metallic mineral resources with lower degree of non-metallic mineral resources. They are related to a variety of geological environments and are mainly physiographically located on the Sierra Madre Occidental. Mainly known mineral deposits are of gold and silver followed by zinc, lead, copper and some iron. The state also has deposits of molybdenum, tungsten and bismuth that have been occasionally exploited. There is a reference of nickel and cobalt mineralization, but these deposits have been exploited only at a small scale.

A Comparative Study on the Precedents of E-learning Use of the Internet among S. Korea, Vietnam, and Singapore (e-러닝 사용 선행요인에 대한 3개국 비교연구-한국, 베트남, 싱가폴)

  • John, Yongjean
    • Journal of Digital Convergence
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    • v.16 no.6
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    • pp.1-8
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    • 2018
  • This study examined the major precedent variables that could affect e-learning users' attitudes in two highly-networked countries and a sharply-spreading country in East Asia, namely South Korea, Vietnam, and Singapore. This research also reviewed why e-learners were using the Internet for their study and unveiled cross-national differences in antecedents of online activities, motivations, intention to use, and enhancement in performance among three countries. This paper could see if there were any differences in precedents of e-learning among the countries by ANOVA. Plus, the study uncovered that what precedents impacted the follow-ups of e-learning by regression analysis in each country. The paper found out that differences in social and cultural aspect influenced on the precedents and the follow-ups of e-learning among the countries. For example, Korean learners had stronger utilitarian motivations for e-learning while the Vietnamese and the Singaporean did not. Korean and Singaporean learners were more strongly influenced to visit e-learning sites by their friends and lecturers than the Vietnamese.