• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume II
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• pp.590-593
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• 2006

Timber inventory management includes to measure and update forest attributes, which is crucial information for private companies and public organizations in property assessment and environment monitoring. Field measurement would be accurate, but time-consuming and inefficient. For the reason, remote sensing technology has been an alternative to field measurement from an economic perspective. Among several sensors, LiDAR and Radar interferometry are known for their efficiency for forest monitoring because they are less influenced by weather and light conditions, and provide reasonably accurate vertical/horizontal measurement for a large area in a short period. For example, Shuttle Radar Topography Mission (SRTM) and National Elevation Dataset (NED) in the U.S. can provide tree height information and DSM. On the other hand, LiDAR DSM (the first return) and DEM (the last return) can also present tree height estimation. With respect to project site of loblolly pine plantation in Louisiana in the U.S., the accuracy of SRTM C-Band approach estimating tree height was assessed by the LiDAR approaches. In addition, SRTM X-Band and NED were also compared with the results. Plantation year in inventory GIS, which is directly related to forest age, is high correlated with the difference between SRTM C-Band and NED. As a byproduct, several stands of age mismatch could be recognized using an outlier detection algorithm, and optical satellite image (ETM+) were used to verify the mismatch. The findings of this study were (1) the confirmation of usefulness of the SRTM DSM for forest monitoring and (2) Multi-sensors- Radar, LiDAR, ETM+, MODIS can be used for accuracy improvement of forest inventory GIS altogether.

• Journal of Preventive Medicine and Public Health
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• 제27권3호
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• pp.627-651
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• 1994

In this study, literature review was done to examine and compare the current status and problems of different evaluation approaches toward permanent impairment in Korea. Alternatives and improvements in the current approaches in Korea were suggested. Series of cases were also examined to compare different approaches applied to the real cases, using 105 cases from a hospital data and another 207 cases from a insurance company data. The main findings of the literature review are as follows; 1. The current evaluation methods of permanent impairment in Korea are grouped into two categories, grading and rating. Gradings of impairments are expressly specified in 17 various statutes. 2. In Grading methods, the rigid system of 74 different grades has been adopted uniformally for the convenience of administration, which may not be, appropriate or valid from medical and scientifical aspect. 3. The adventage of McBride method is assessment of occupational disability rate. However the classified compensable occupations are only 280 and limited to manufacturing industries in 1960s'of U.S.A., which is not appropriate to current Korean circumstances. Especially, the job list does not include managerial officers or mental workers. 4. AMA Guides is the scientific and reasonable method for the assessment of physical impairment rate. However compensation and reparation of impairment case is difficult because this method cannot assess the disability rate according to occupation, age, etc. The results of cases comparative study are as follows: 5. The physical Impairment could be compared in 167 out of total 312 cases, and for the cases of complex impairment, McBride method underestimate physical impairment rate compared with AM A method. 6. When disability late was assessed, occupation was considered the compensation of only 85 cases, and age was used in only 21 cases. This was because occupation and age compensation in McBride method are unreasonable. 7. The most Ideal alternative is to assess physical impairment according to AMA method and then to develop a compensation method appropriate for the circumstances of Korea society.

• 대한예방의학회:학술대회논문집
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• 대한예방의학회 2000년도 제52차 추계학술대회 연제집
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• pp.253-254
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• 2000

• 한국병원경영학회지
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• 제9권1호
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• pp.1-21
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• 2004

The United States has a unique health care system, which is unlikely any other health care systems in the world. The major part of basic functional components of the system -financing, insurance, delivery, and payment- is in private hands. A market-oriented economy invites the participation of numerous private entities that are interested in carrying out the key functions of health systems. Due to this central feature, U.S.health care is not delivered through a network of interrelated components designed to work together coherently. For lack of standardization, the various components of the system fit together only loosely. The involvement of numerous players in the key functions leads to duplication, overlap, inadequacy, inconsistency, and waste, which add to the complexity and also make the system inefficient. Hence, cost containment remains an elusive goals. Moreover, the system falls short of delivering equitable services to all americans, though consumption of health care services is the largest in the world. On the other hand, United States leads the world in the latest and the best in medical technology, medical training, and research. It offers some of the most sophisticated institutions, products, and processes of health care delivery. This article discuss the characteristic features of the U.S. health care system. and its performance, trying to seek its implication on Korean health care system.

• Journal of Korea Trade
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• 제24권6호
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• pp.61-81
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• 2020

Purpose - This paper examines how the consumer animosity of partner country influences the purchase of foreign products. We analyzed news sentiment to determine whether Chinese consumer's animosity affect the purchase of the products made in Korea around the time when the U.S. Terminal High Altitude Area Defense missile system was deployed in South Korea. Design/methodology - To measure the tone of Chinese consumer animosity more carefully, we utilized a text mining technique of the Chinese language to read the public's opinion. Using Chinese news paper's editorials of 2015.1-2018.10, we analyzed the sentiment toward Korea and regressed it with Korean export to China. Findings - Empirical results report that Chinese consumers tended to reduce their purchase of consumer goods from Korea when the animosity increased, that is, the sentiments of Chinese news editorials were negative. In contrast, the animosity did not affect the purchase of Korean intermediates or raw materials. We further analyzed the effect by dividing the animosity into three categories; politics, economics, and culture. Among these groups, political news exhibits a unique effect on Chinese purchase on consumer goods from Korea. Originality/value - Existing literature on animosity models has measured the animosity by collecting the consumers' opinions through survey at a given time point, whereas it is measured by analyzing the tone of the press release by sentiment analysis during the time period around the event occurrence in this study.

• 대한방사선기술학회지:방사선기술과학
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• 제44권3호
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• pp.247-252
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• 2021

As the number of single-person households increases, the consumption of bottled water is increasing. In addition, as the public's interest in radioactivity increases, interest in the field of living radioactivity is also increasing. Since drinking water is an essential element in our daily life, it must be safe from radioactivity. In this study, gamma radiation of drinking spring water was measured and internal exposure dose evaluation was performed to determine its harmfulness. K-40 and uranium-based radioactivity analysis was performed through a high-purity germanium detector, and as a result, drinking water was detected somewhat higher than that of mixing water. Since there is no regulation on the natural radioactivity concentration in Korea, it was compared with the U.S. Environmental Protection Agency Drinking Water Regulations and World Health Organization standard. As a result, there were some items that exceeded standards. Internal exposure was evaluated according to the effective dose formula of ICRP 119. As the result was derived that a maximum of 1.17 mSv per year could be received. This result means that the dose limit for the general public may be exceeded, and it was judged that it is necessary to set an appropriate standard value and present a recommendation value through continuous monitoring in the future.

• 대한지역사회영양학회지
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• 제28권5호
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• pp.414-422
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• 2023

Objectives: This study evaluated usual dietary intakes of total fat and fatty acids among the Korean population based on the revised Dietary Reference Intakes for Koreans 2020 (2020 KDRIs). Methods: This study utilized data from the eighth Korea National Health and Nutrition Examination Survey (KNHANES 2019-2021). We included 18,895 individuals aged 1 year and above whose 1-day 24-hour dietary recall data were available. To calculate the external variability using the National Cancer Institute 1-day method, data from the U.S. NHANES 2017-March 2020 Pre-pandemic dataset were employed. The total fat and fatty acid intake were evaluated based on the Acceptable Macronutrient Distribution Ranges (AMDRs) and Adequate intake (AI) of 2020 KDRIs for each sex and age groups. Results: Approximately 86% of the Korean population obtained an adequate amount of energy from total fat consumption (within the AMDRs), indicating an appropriate level of intake. However, the percentage of individuals consuming saturated fatty acids below the AMDR was low, with only 12% among those under 19 years of age and 52% aged 19 years and older. On a positive note, approximately 70% of the population showed adequate consumption of essential fatty acids, exceeding the AI. Nevertheless, monitoring the intake ratio of omega 3 (n-3) to omega 6 (n-6) fatty acids is essential to ensure an optimum balance. Conclusions: This study explored the possibility of estimating the distribution of nutrient intake in a population by applying the external variability ratio. Therefore, if future KNHANES conduct multiple 24-hour recalls every few years-similar to the U.S. NHANES-even for a subset of participants, this may aid in the accurate assessment of the nutritional status of the population.

• 한국학교보건학회지
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• 제16권1호
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• pp.81-90
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• 2003

This study was conducted to contribute to the basic data for decisions on environment policy improvement in health promotion for students in elementary, middle and high schools. This study was carried out to investigate the extent of indoor air pollution in elementary, middle and high schools in residential, traffic congestional and industrial areas. The concentrations of major indoor air pollutants(carbon monoxide, carbon dioxide, respiratory particulate, radon) and thermocircumstance (temperature, relative humidity, intensity of illumination) indices were observed from June to August 2000. As results of the survey, the mean values of thermocircumstance in school were $26.94{\pm}1.15^{\circ}C$ of temperature, $68.88{\pm}5.31%$ of humidity and $268.26{\pm}164.60$ Lux of intensity of illumination. The mean concentrations of carbon monoxide, carbon dioxide, respiratory particulate were $8.36{\pm}0.29\;ppm$, $547.66{\pm}175.58\;ppm$, $36.23{\pm}48.39\;{\mu}g/m3$, respectively. These values were lower than those of the indoor environmental standard on the first clause of Article 45 of public utilization service notified public hygiene of the Ministry of Health and Social Affairs. The mean concentration of radon was $20.07{\pm}17.95\;Bq/m3$. Which was below the U.S. EPA radon action level.

• 인터넷정보학회논문지
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• 제22권4호
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• pp.123-134
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• 2021

본 논문은 넷플릭스와 SK브로드밴드 소송의 핵심 쟁점인 인터넷의 유상성에 관해 논증하고 있다. 인터넷 연결 관련 당사자 간 기밀유지협약이 일반적인 시장의 특성으로 인해 거래 데이터 수집 한계가 있어 연구방법론으로 사례연구 및 판례분석을 채택하였다. 즉 CP를 중심으로 한 일부에서 인터넷은 무료로 고안된 망이기 때문에, 그리고 시장에서 무료로 이용하고 있는 경우가 많으므로 ISP가 CP를 포함한 이용자들에게 요금을 부과할 권리가 없다고 하는 주장에 대해 인터넷이 무료가 아님을 미국 인터넷 역사와 2016년 Charter 합병 관련 소송 분석 등 두 가지 접근방법을 통해 검토한다. 첫째, 미국 인터넷의 시작이라 알려진 ARPANET부터 백본 상용화까지의 초기 인터넷 망을 고안할 당시 인터넷의 무상성은 고려되거나 시행된 바가 없으며 NSFNET 백본의 망 운영비 확보를 위해 연방정부가 지원금을 부담하거나 기관들이 요금을 부담하고 있었다. 인터넷 초기에도 인터넷망 이용에 따른 대가 지불이 있었다. 더불어 Free Peering의 free는 무상이 아니라 물물교환(Barter)을 의미한다. 둘째, 미국 연방정부 행정명령서 및 법원의 판결문과 같은 공문서를 분석하여 인터넷의 유상성을 입증하고 있다. 2016년 미 CATV 사업자 차터(Charter)의 합병승인 조건 명령서와 동 명령 관련한 소송 판결문에서 현재 미국 인터넷 시장 내 ISP-CP(OTT 포함) 간 유료 정산을 하고 있으며, 망 이용대가와 망 중립성 규제는 무관하다는 점을 공식적으로 확인할 수 있었다. 결론적으로 인터넷의 기술적 특성, 망 구조, 망 운용, 제도 측면에서 인터넷이 무료인 적은 없음을 논증하고 있으며 국내 정책 및 규제 차원에서 제도 개선을 제안하고 있다.

• 법제연구
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• 제54호
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• pp.155-192
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• 2018

오늘날 '제4차 산업혁명'을 통해 '초연결사회'가 구현되면서 새로운 사회적 공리와 더불어 위험 역시 증대하고 있다. 무엇보다도 은밀한 개인정보를 포괄하는 정보에 대한 침해의 위험이 비약적으로 증대하고 있다. 초연결사회가 실현되면서, 사물인터넷 기기 한 개만 해킹되어도 그 파급효과가 초연결망 전체로 확산되는 위험이 등장하고 있는 것이다. 이에 따라 사이버보안을 포괄하는 정보보호의 필요성과 중요성이 증대하고 있다. 사이버 공간, 인터넷 공간의 안정성이 부각되고 있는 것이다. 이에 정부는 초연결사회의 정보침해 문제에 대응할 수 있는 정보보호 관련 법체계 구축을 모색하고 있다. 그러나 그 방향성을 어떻게 설정해야 할지에 관해서는 여전히 고민을 하고 있는 것으로 보인다. 이러한 상황에서 해외 선진국의 법적 상황을 살펴보는 비교법적 검토는 우리가 정보보호 관련 법정 책을 어떻게 펼쳐야 하는지에 관해 의미 있는 시사점을 제공할 것이다. 특히 사이버보안을 침해하는 행위에 대해 적극적인 대응입법을 하고 있는 미국의 법제는 우리가 참고할 만한 가치를 지니고 있다. 이러한 이유에서 이 글은 미국 사이버보안법의 최근 현황을 체계적으로 분석한다. 특히 미국이 최근 제정한 "사이버보안 정보공유법"을 집중적으로 분석한다. "사이버보안 정보공유법"은 국가기관과 민간기관 사이의 정보공유에 관해 체계적이고 상세하게 규정한다. 정보공유야말로 현대 초연결사회에서 정보보호를 적절하게 실현할 수 있는 효과적인 방안이라는 점에서 정보공유를 적극 장려하는 미국의 "사이버보안 정보공유법"은 우리에게 시사하는 바가 적지 않다. 우리는 아직 독자적인 정보공유법을 갖추고 있지 않기 때문이다.