• Title/Summary/Keyword: Basic Scientific Research

검색결과 386건 처리시간 0.027초

통합 개념을 중심으로 한 고등학교 1학년 과학교육과정의 내용 구성 (Contents Organization of Science Curriculum for the 10th Grade Students Focusing on the Integrated Concepts)

  • 이현지;이경희;최병순
    • 과학교육연구지
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    • 제39권2호
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    • pp.209-220
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    • 2015
  • 과학은 자연 현상을 탐구하는 학문으로서 본질로 통합적인 성격을 띤다. 또한, 모든 학생을 위한 과학적 소양을 키우기 위한 과학교육의 목표를 효과적으로 달성하기 위해서는 통합적 과학교육이 요구된다. 이러한 관점에서 이 연구는 자연 현상을 관통하는 기본 개념이나 원리를 통합 개념으로 정의하고, 이를 중심으로 통합과학 교육과정의 내용을 구성하였다. 구성된 통합 개념 중심 과학교육과정의 대상은 고등학교 1학년이며, 성취수준을 제시하여 학습 내용의 수준과 범위를 나타내었다. 이 연구에서 제시한 통합과학 교육과정의 내용 구성은 현재 진행되고 있는 문 이과 통합형 과학과 교육과정의 개정에 새로운 관점을 제시할 수 있다는데 의미가 있다.

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하둡 기반 대규모 작업 배치 및 처리 기술 설계 (Design of a Large-scale Task Dispatching & Processing System based on Hadoop)

  • 김직수;구엔 카오;김서영;황순욱
    • 정보과학회 논문지
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    • 제43권6호
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    • pp.613-620
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    • 2016
  • 본 논문에서는 대규모의 작업을 고성능으로 처리하기 위한 Many-Task Computing(MTC) 기술을 기존의 빅데이터 처리 플랫폼인 Hadoop에 적용하기 위한 MOHA(Many-Task Computing on Hadoop) 프레임워크에 대해 기술한다. 세부적으로는 MOHA의 기본 개념과 개발 동기, 분산 작업 큐에 기반한 PoC(Proof-of-Concept) 수행 결과를 제시하고 향후 연구 방향에 대해서 논의하고자 한다. MTC 응용은 각각의 태스크들이 요구하는 I/O 처리량은 상대적으로 많지 않지만, 동시에 대량의 태스크들을 고성능으로 처리해야하고 이들이 파일을 통해서 통신한다는 특징을 가지고 있다. 따라서 기존의 상대적으로 큰 데이터 블록 사이즈에 기반한 Hadoop 응용과는 또 다른 패턴의 데이터 집약형 워크로드라고 할 수 있다. 이러한 MTC 기술과 빅데이터 기술의 융합을 통해 멀티 응용 플랫폼으로 진화하고 있는 Hadoop 생태계에 신규 프레임워크로서 대규모 계산과학 응용을 실행할 수 있는 MOHA를 추가하여 기여할 수 있을 것이다.

과학도시의 생성과 발전: 대덕연구단지의 경우 (The Making of a Science Town: The Case of Daedeok, Korea)

  • 김호연
    • 한국경제지리학회지
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    • 제12권1호
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    • pp.83-95
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    • 2009
  • 본 논문은 기존 문헌의 광범위한 검토 및 비교분석을 통해 대덕연구단지의 조성과정을 살펴보고 그간 도출된 성과에 대해 고찰한다. 대덕단지는 국가적 연구개발 노력을 특정 지역에 집중하여 전국의 산업 전반에 기초 과학기술을 제공하려는 노력의 일환으로 구상되었다. 대덕은 정부 주도로 건설된 새로운 과학도시의 상징으로서, 향상된 연구환경을 제공하고 벤처기업의 창업을 활성화하며 산학연 네트워크를 창출하는 등 상당한 수준의 성공을 거둔 것으로 평가된다. 전반적으로 지식기반경제의 도래를 앞당기는 긍정적 역할을 수행했음이 인정되나, 대덕단지의 활력을 유지하기 위해서는 신규 업체의 설립, 해외 마케팅, 자금조달, 보다 긴밀한 네트워크 구축 등에 있어 정부의 지속적인 지원이 필요하다. 또한 벤처기업의 판로 및 자금원으로 기능할 수 있는 대기업들을 해당 지역에 보다 적극적으로 유치해야 할 것이다.

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TV 뉴스에 보도된 건강관련 정보의 건강성과 해독성 (How Healthy is the Health related Informations brocated by TV News?)

  • 김신정;이정은;김신동
    • 지역사회간호학회지
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    • 제12권2호
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    • pp.513-531
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    • 2001
  • Television news programs are becoming significant source of health information. This study aims at investigating the current state of health coverage of the prime time news program in Korea. Data were collected from KBS 9 0'clock news in the period of thirteen months. from December 1. 1998. to November 1. 1999. The data were analyzed using content analysis method. and the reliability degree was 99.7% according to the Holsti's inter-coder reliability test. The current research classified 489 health related news items into 49 sub-categories and five health categories through content analysis. Some of the basic results of this study are as follows. 1. The frequency according to health category, health maintenance promotion(57.3%) topped followed by disease prevention(23.2%), disease treatment(14.9%), life ethics(4.0%), and growth development(0.6%). 2. According to human developmental age. for the most part(80.1 %) is applicable to the entire range of human developmental age. 3. Health maintennance promotion category take top of health category by the rate of 57.3% and contain 20 sub-categories. 4. News items in the life ethics category, which had six sub-categories. occupied only four percent of the total health related news. News in the growth development category included two sub categories and occupied 0.6% of the total news items. 5. In disease prevention and disease treatment category, infectious disease(33.2%) showed the highest percentage according to the WHO's international disease classification system. Disease prevention occupied 23.2% and contained eleven sub-categories while disease treatment occupied 14.9% and included ten sub-categories. Television news coverage on health showed a wide variety of selection in terms that they are reporting various issues. This study, however, found that some news items were confusing and failing in presenting scientific evidences. It is suggested that the television coverage on health could be beneficial to most of viewers in receiving important health information and guidelines, only if they are utilizing their own sound discretion in consuming those news.

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한국 비판언론학의 질적 연구방법 적용사례 연구 (A Case Study on Appliance of Quality Survey Methodology to the Korean Critical Journalism and Mass Communication)

  • 강진숙
    • 한국언론정보학보
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    • 제43권
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    • pp.81-113
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    • 2008
  • 이 연구의 목적은 비판언론학의 질적 연구방법론 적용사례를 분석함으로써 방법론적 성찰을 위한 기초 자료를 제시하는 데 있다. 이를 위해 우선, 비판언론학의 정체성 일부를 형성해온 언론학 패러다임 논쟁을 살펴보고, 이 논의를 기초로 질적 연구의 특성과 전통적 방법론의 유형에 대해 논의하였다. 나아가 한국 비판언론학을 주도해온 한국언론정보학회의 학술지에 게재된 학술논문들을 분석하여 질적 연구방법론 적용사례의 경향들을 분석하였다. 연구문제 해결을 위한 분석범주는 이론적 배경 및 방법론, 표본추출전략, 자료 수집방법, 자료 분석방법 그리고 신뢰성 검증 등 총 다섯 항목으로 구성하였다. 표본논문의 추출기간은 자료검색이 가능한 1998년도의 "한국언론정보학보" 제11권부터 최근 2007년 제40권까지로 설정하였고, 이 기간에 게재된 총 254편의 논문들 중에서 본 연구의 주제에 부합하는 논문들을 수집해 들어갔다. 논문의 수집방법은 키워드 검색기법을 사용하였다. 분석결과, 국내 비판언론학은 질적 연구방법을 적용함에 있어 보다 세부적이고 엄격한 방법론적 논의와 적용이 필요한 것으로 평가된다. 다양한 이론과 방법론을 적용하고 있지만, 방법론을 설계하고 결론을 도출함에 있어 세부적인 분석범주와 항목에 대한 구체적인 논의가 이루어지고 있지 않기 때문이다.

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Occurrence and distribution of weed species on horticulture fields in Chungnam province of Korea

  • Hwang, Ki Seon;Eom, Min Yong;Park, Su Hyuk;Won, Ok Jae;Lee, In Yong;Park, Kee Woong
    • Journal of Ecology and Environment
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    • 제38권3호
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    • pp.353-360
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    • 2015
  • A survey of weed occurrence was conducted to identify problematic weed species in a horticultural crop field to get basic information for effective weed control. Surveys of weed species occurring in horticultural crop fields (garlic, onion, red pepper and Chinese cabbage) were conducted in Chungnam province of Korea from April to October in 2014. A total of 516 sites of the 17 regions were identified as having 114 weed species belonging to 32 families. The most dominant weed species in the horticultural crop fields were Chenopodium album var. centrorubrum (8.83%), followed by Digitaria ciliaris (5.71%), Conyza canadensis (5.46%) and Capsella bursa-pastoris (4.67%). Specifically, as a result of this study, the occurrence of 35 species of exotic weeds, such as Chenopodium album and Taraxacum officinale, were confirmed. Almost 68% of the investigation sites was determined under dominance value 1 (range of cover < 10; numerous individuals) by Braun-Branquet cover-abundance scale, indicating a proper weed control in horticultural crop field. As a result of scientific and technological advances, an improved cultivation method is changing the weed occurrence in agricultural land. Additional research needs to be undertaken for the development of weed control methods through such periodic monitoring of occurrence of weeds.

Characterization of Hanwoo Bovine By-products by Means of Yield, Physicochemical and Nutritional Compositions

  • Seong, Pil Nam;Kang, Geun Ho;Park, Kuyng Mi;Cho, Soo Hyun;Kang, Sun Moon;Park, Beom Young;Moon, Sung Sil;Ba, Hoa Van
    • 한국축산식품학회지
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    • 제34권4호
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    • pp.434-447
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    • 2014
  • Though the edible bovine by-products are widely used for human consumption in most countries worldwide but the scientific information regarding the nutritional quality of these by-products is scarce. In the present study, the basic information regarding the yields, physicochemical and nutritional compositions of edible Hanwoo bovine by-products was studied. Our results showed that the yields, physicochemical and nutritional composition widely varied between the by-products examined. The highest pH values were found in rumen, reticulum, omasum and reproductive organ. Heart, liver, kidney and spleen had the lowest CIE $L^*$ values and highest CIE $a^*$ values. Liver had the highest vitamin A, B2 and niacin contents whereas the highest B1 and B5 contents were found in kidney. The highest Ca content was found in rumen, reticulum, omasum, head and leg while the highest Mn and Fe contents were found in rumen, omasum and spleen, respectively. Liver had the highest Cu content. Total essential amino acids (EAA)/amino acids (AA) ratios ranged between the by-products from 38.37% to 47.41%. Total polyunsaturated fatty acids (PUFA) levels ranged between the by-products from 2.26% to 26.47%, and most by-products showed favorable PUFA/SFA ratios. It is concluded that most of by-products examined are good sources of essential nutrients and these data will be of great importance for promotion of consumption and utilization of beef by-products in future.

온라인 퍼스널 이미지 컨설팅 프로그램의 컨텐츠 현황 분석 (Analysis of On-line Personal Image Consulting Program Contents)

  • 김리라;정수인;김유정;김영인
    • 복식
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    • 제62권4호
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    • pp.58-68
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    • 2012
  • Personal image concerns a person's talent, expertise, as well as the internal and external image. It is a core value that differentiates one individual from another. As personal branding via personal image management has become more important, there is a fast-growing number of online systems that provide self-test programs to analyze one's style and habits and also provide expert advice for not only styles but lifestyles as well. This study develops a systematic and objective personal image consulting system and offers basic information for the research of personal image making. For that purpose, the study attempts to examine the present state of global companies that use online image consulting programs and analyze their digital content. The results are as follows: 1) two domestic companies, Colorz and Atzine, and seven foreign companies, notably Covet and Boutique, were brisk in business; 2) two types of personal image-diagnosis programs - Visual search and Virtual matching - are now in operation; and 3) mobile applications exist as an evolved personal image-diagnosis program. With an increased interest in such programs, various companies at home and abroad are establishing systematic and scientific analysis systems, which are needed for personal image-making online. Under these circumstances, domestic companies are also urged to enhance levels of image-diagnosis content and actual commercialization and utilization, to develop programs that enable objectified, systematic personal image-making. To this end, the results of this study may serve as a helpful tool to consider future directions.

시판중인 유아용 땅콩기저귀의 형태와 구성에 관한 실태조사 (Research on the Actual Condition of Shape and Make-up of Peanut-Shaped Cloth Diaper for Baby on Market)

  • 이정순;한경희;구미란
    • 패션비즈니스
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    • 제15권4호
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    • pp.122-134
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    • 2011
  • The peanut-shaped cloth diaper has cut uncomfortable crotch region off the square-shaped cloth diaper into a peanut-shape, and finished the edge by bias with multi-layers of fabric. This study has the purpose on providing the basic data for designing the peanut-shaped cloth diaper. For this purpose, the peanut-shaped cloth diapers on market were collected and analyzed by their shape and size, and also the patterns and differences in making were compared. 26 products from 17 brands were collected as samples. The analysis factors are the shape and size of the peanut-shaped cloth diaper, and characteristics and patterns in making. Among the samples, only 3 diapers were straight-shaped; the rest of them were peanut-shaped. The size difference between the big and small peanut-shaped cloth diapers was very large; the total length of the small one was 36.5cm-39cm which was very common, and the total length of the big one was more than 44cm. All diapers had longer width in the back than the front. The width of the front and back was different for each sample, therefore, it seemed to have some difficulties to set the standard. The peanut-shaped cloth diaper had different make-up depending on its characteristics including. absorbance, washing and drying. It was usually made by cotton woven of diamond jacquard or knit, and finished the edge by woven bias or knit bias. The peanut-shaped cloth diapers were various including a sheet of diaper, two sheets of diapers fixed with velcro, three sheets of diapers, and etc. For the patterns of the diapers, only two samples out of all had three dimensional shape, and the rest were produced using flat shape. There were no distinction between the diapers of girls and boys. Therefore, it is necessary to make the product based on scientific data about the peanut-shaped cloth diaper.

제주도 동남해역의 저서어업자원 조사연구 - 음향에 의한 어업생물의 분포밀도 추정 - (Hydroacoustic Investigation of Demersal Fisheries Resources in the Southeastern Area of the Cheju Island , Korea - Acoustical Estimation of Fish Density and Distribution-)

  • 이대재;이원우
    • 수산해양기술연구
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    • 제32권3호
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    • pp.266-272
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    • 1996
  • The distribution and abundance of fish in the Cheju southeastern area was studied by the combined hydroacoustic and bottom trawl surveys in April 1994 and in July 1995, respectively. The main purpose of these investigations was to provide the basic data for this management and the biomass estimation of commercially important demersal fish stocks in this area. The hydroacoustic surveys were performed by using a 50 kHz scientific echo sounder system with a microcomputer-based echo integrator. Acoustical measurements of fish abundance and distribution were conducted along the cruise tracks of research vessel and during all trawl hauls by continuous echo sounding. The average weight-normalized target strength for demersal fish aggregations was derived from the relationship between the mean volume backscattering strength for the depth strata of trawl hauls and the weight per cubic meter of trawl catches. The geographical distribution of fish stocks in the 1994 survey area was investigated in relation to oceanographic conditions. The results obtained can be summarized as follows: 1. From the 1994 and 1995 survey data, the relationship between the mean volume backscattering strength (, dB) for the depth strata of trawl hauls and the weight (W, kg/$m^3$) per cubic meter of trawl catches was expressed by the following equation = - 32.8+ lOlog(W) The average weighted-target strength value at 50 kHz derived from this equation was .. 32.8 dB/kg. 2. In 1994 and 1995, both surveys showed a trend of decreasing fish abundance toward the southern area of the Cheju Island with high densities offish along the west coast ofth.e Tsushima Island. The highest demersal concentrations in the southern area of the CheJu Island appeared in bottom waters colder than $12^{\circ}C.$. . 3. From the results of combined bottom trawl and hydroacoustic surveys, the estunated fish densities in the southeastern area of the Cheju Island were 1.5488 x $10^-4$kg/$m^3$ in the 1994 surveyand 1.9498 x $10^-4$kg/$m^3$ in the 1995 survey, respectively.

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