• 한국농공학회지
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• 제42권1호
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• pp.57-65
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• 2000

The objective of this paper are to present a realistic methodology to estimate the daily water supply rates form irrigation pumping stattions, to validate it with the field data, and to report the daily irrigation pumping rates from the Han river basin. Five-year historical pumping records were collected from seventy-three pumping stations in the Han river basin. And the daily pumping rates were estimated from the electrical consumption records. The pumping patterns from the stations were analyzed and the results were applied to ungauged pumping stations in the basin. The method was appliedto five stations which were field monitored during the irragation periods in 1998. The relative errors between the observed and simulated water pumpage ranged from 1.4 to 7.0 percent. This indicates that the proposed method is valid to apply for estimating the pumping rates for agricultural lands. During 1993 to 1997, the annual average water pumpaging from the Han river and the tributaries were 350 million cubic meter. The annual water supply from the pumping stations varied from 973 to 1.377 mm in depth and the mean was 1,170 mm. The major factor affecting the annual variations was attributed to the rainfall during the growing seasons.

• 대한방사선기술학회지:방사선기술과학
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• 제43권2호
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• pp.123-128
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• 2020

Radiation Following the 2011 Fukushima nuclear accident in Japan, public interest and anxiety about radiation safety increased, and vague anxiety about commonly exposed living radiation was generated. The Atomic Energy Safety Commission has been conducting a survey of processed products that advertise "negative ions" and "far-infrared" emissions under the Living Radiation Safety Management Act. In this study, in-depth analysis was performed from a statistical point of view using the measurement data presented in the Nuclear Safety Committee's actual survey analysis report as secondary data. As a result, there was a statistically significant difference (p<0.005) between latex and civil affairs products. There were also statistically significant differences (p<0.05) in the results of testing whether there were significant differences in the annual exposure dose between groups after categorizing 71 civil products, including radon beds, into bed, bedding, and living and other categories. The correlation analysis results also confirm that, as is commonly known, the annual doses received from processed products are associated with radon derived from U-238 and Th-232.

• 한국태양에너지학회 논문집
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• 제31권2호
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• pp.72-81
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• 2011

The wind data obtained from an AWS(Automated Weather Station) was used to predict the AEP(annual energy production) of Gangwon wind farm having a total capacity of 98 MWin Korea. A wind energy prediction program based on the Reynolds averaged Navier-Stokes equation was used. Predictions were made for three consecutive years starting from 2007 and the results were compared with the actual AEPs presented in the CDM (Clean Development Mechanism) monitoring report of the wind farm. The results from the prediction program were close to the actual AEPs and the errors were within 7.8%.

• 한국수산과학회지
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• 제5권4호
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• pp.108-114
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• 1972

한국 남해의 동물성 플랑크톤 현존량은 $1963\~1971$년간의 자료로 분석한 결과 63개월을 일주기로 주기 변동을 하고 있으며. 그 주기성은 자기 상관 계수 $\gamma_k$=0.86으로 강한 편이다. 계절 순환 변동은 4월과 10월을 극대기로 하는 쌍봉성 변동을 하며, 그 경향은 대단히 뚜렷한데, 이것은 이 해역에 있어서 식물성 플랑크톤의 양적 소장과 중요한 관련성을 가지는 것으로 고찰된다.

• 원자력산업
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• 제37권8호
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• pp.38-57
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• 2017

이 보고서는 2019년, 2022년, 그리고 2040년에 가동에 들어가는 신규 발전원들의 균등화 발전 비용과 균등화 회피 비용의 평균값이 얼마나 되는지를 보여주는 데 그 목적이 있다. 이 보고서에 나온 자료는 Annual Energy Outlook 2017(AEO2017)를 작성하는 데 이용된 National Energy Modeling System(NEMS)에 있는 것들이다. 세 가지의 시나리오 중에서 2022년 가동에 들어가는 경우에 대해서만 본문에서 다루었고, 나머지 2019년과 2040년 가동에 들어가는 경우에 대해서는 각각 부록 A와 B에서 다루었다. 계산은 NEMS의 전력시장 모듈(EMM)에 들어 있는 미국의 22개 지역에 건설되는 발전 설비들을 대상으로 하고 있다. 이 보고서는 그 22개 지역 발전 설비들의 평균 균등화 발전 비용, 설비 용량을 고려한 가중 평균 비용, 지역 간 비용 편차, 그리고 균등화 회피 비용과 균등화 발전 비용의 차이 등을 계산하여 제시하고 있다.

• Asian Journal of Business Environment
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• 제11권4호
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• pp.39-45
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• 2021

Purpose: This study is designed to investigate the extent and nature of climate change disclosure of listed pharmaceutical companies of Bangladesh. Research design, data and methodology: In order to perform this research, a content analysis methodology is used. A climate change disclosure index is constructed to examine 12 different climate change disclosure issues. Information is collected from the annual reports of 29 pharmaceutical companies listed on the Dhaka Stock Exchange for the year 2019. Results: This study finds that only 48.28% of the sample companies provided disclosure on at least one issue regarding climate change. 'Energy savings' is the mostly disclosed issue whereas 'Pollution control expenditure', 'Biodiversity conservation initiatives' are the least disclosed issues. Research implication: This study concludes 64.29% of the companies examined, use less than five sentences for climate change disclosure, which depicts unsatisfactory disclosure practices regarding climate change issues. Study findings would be helpful for different industries of Bangladesh to implement efficient climate change reporting Practice. Future studies can be conducted on other industries to obtain more comprehensive result.

• 대한방사선기술학회지:방사선기술과학
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• 제32권2호
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• pp.141-146
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• 2009

1956년부터 2005년까지 50년간 대한결핵협회의 X선 검진사업에 의해 촬영된 흉부방사선영상(CXR) 판독 결과를 분석하였으며 통계의 특성 및 자료의 원본에 충실하기 위해 대한결핵협회에서 발행되는 연보(annual report)의 내용만을 분석하였다. 따라서 결핵협회의 사업목적 중의 하나인 폐결핵 유소견자에 대한 분석이 핵심적으로 이루어졌으며 연령과 성별 등은 포함되지 않았다. 50년간의 누적 검진 대상자에 대한 폐결핵 유소견자를 질환별로 분석한 결과는 다음과 같다. 검진대상자 총 수는 54,938,875명으로 나타났다. 이 중 폐결핵 유소견자 수는 958,251명(1.74%), 요치료자 465,082명(0.85%), 경증자 229,615명(0.42%), 중등증 144,247명(0.26%), 중증 74,066명(0.13%), 삼출성흉막염 17,154명(0.03%), 요관찰자 493,169명(0.90%), 활동성 미정 78,214명(0.14%), 의사결핵 272,349명(0.50%) 등으로 나타났다.

• 한국산학기술학회논문지
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• 제20권9호
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• pp.290-298
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• 2019

본 연구에서는 행정안전부에서 발행하는 국민 일일상황보고서와 재난 연감 및 재해 연보 등을 활용하여 재난 및 안전관리 기본법에서 선언하고 있는 자연 재난 15종, 사회 재난 7종의 총 22종을 대상으로 재난 안전 데이터를 조사하고, 이들 재난의 데이터 특성에 따라 재난을 유형화하였다. 재난 안전 데이터는 행정안전부의 일일상황보고 자료를 대상으로 자연재난 656건, 사회재난 1,104건으로 총 1,760건을 대상으로 하였다. 신속하고 효율적인 재난 상황 관리를 위한 재난 안전 데이터 체계 마련을 목적으로 하였기 때문에 대응과 복구 단계의 활동과 관련된 데이터를 재난의 종류별로 분류하여 분석하였다. 그리고, 재난 발생 후 시간적 흐름에 따라서 수행하는 관리 활동들을 기반으로 재난 안전 데이터에 대한 특성과 재난 안전 관리 절차 등을 분석하여 효율적인 재난 관리 업무 수행을 위한 재난 안전 데이터 유형을 분류하여 제시하였다. 유형 분류는 유사성이 높은 재난은 서로 통폐합하고, 향후 재해연보나 재난연감 등의 국가통계 데이터 구축에 활용될 수 있도록 확장성 및 상호 연계성을 고려하였다.

• 천문학논총
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• 제35권1호
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• pp.1-16
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• 2020

We report a calendar sheet for the 31st year of the reign of King Gojong (1894) (hereafter, calendar sheet 1894) in Korea, which calendrical data in a single page. This calendar sheet 1894 is composed of 14 rows by 14 columns (about 190 cells), and various calendrical data are recorded such as the sexagenary circle of the first day in each month, 24 solar terms, full moon day. In this paper, we compare calendrical data of 1894 calendar sheet with those of the almanac based on the Shixian calendar (hereafter, annual almanac) of the same year. Our findings are as follows. First, we find that the year is expressed using the reign-year of the king of the Joseon dynasty differently from using the reign-style of China in the annual almanac those times. Other calendar days of this calendar sheet are the same as those of the annual almanac in term of lunar dates, 24 solar terms, sexagenary days and so forth. Second, we find that the calendar sheet 1894 contains memorial days for 64 lineally ancestors of the Joseon royal family. These royal memorial days appears in the annual almanac two years later (i.e., 1896). Third, as the most distinctive feature, we find that the symbol of 工 kept every two cells. It was found that the cells can be filled with three days as the maximum number of days and then are labelled the same symbol 工 every second cell. This feature allows us to get the first year in which this kind of calendar sheet was published. It is conjectured one of 11 years, such as 1845, 1846, 1847, 1873, 1874, 1875, 1876, 1877, 1878, 1879 or 1880. We also think that the format of the calendar sheet 1894 has influenced on the Daehan-Minryeok (Korean civil calendar sheet) of 1920.

• Journal of Preventive Medicine and Public Health
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• 제52권1호
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• pp.60-65
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• 2019

Objectives: This study examined cancer knowledge, beliefs, and practice among faith-based Chinese in the USA versus Taiwan to gain better understandings on how environment and culture might play a role for tailored cancer education programs. Methods: A self-administered survey included a validated 10-item Cancer Screening Belief Scale (CSBS), an 8-item Cancer Screening Knowledge Test (CSKT), and a 14-item cancer Warning Signs Test (CWST) was administered. Participants were recruited from 9 Chinese churches (5 in the USA and 4 in Taiwan). Results: A total of 372 Chinese participated, 50% lived in the USA and 50% in Taiwan. Mean age was 44.31 (standard deviation, 14.74), 60% males, and majority had college education (85%). Taiwan participants scored higher on both CSKT (6.13 vs. 5.52; p<0.001) and CWST (6.80 vs. 5.38; p<0.001). Although perceived screening benefits and barriers were similar, Taiwan participants endorsed higher on screening norms (11.67 vs. 10.82; p<0.001). Taiwan participants also indicated more doctor recommending cancer screenings (42.1% vs. 29.6%; p=0.015), USA participants were more likely to have had annual health exams (65.4% vs. 48.9%; p=0.002). Regression results showed that those resided in the USA were 2.38 times more likely to report annual health exams. Married status (odds ratio [OR], 2.85), college education (OR, 2.38), doctor's recommendation (OR, 2.87), no family cancer history (OR, 2.47), and those with lower barriers were significant factors on annual health exams. Conclusions: Taiwan participants scored higher on cancer knowledge and screening norms, while more USA participants reported annual health exams. Taiwan's universal healthcare might play a role on the different healthcare seeking patterns.