고속도로에 적용되고 있는 소음저감대책 현황을 고찰하기 위해서 고속도로 건설 전 수행해야 하는 환경영향평가서와 고속도로 완공 후 소음기준 초과 소음에 대한 소음영향분석보고서를 검토하였다. 환경영향평가서는 시기별로 수립되는 방음대책이 변화하였다. 2013 년 전까지는 방음벽(흡음형, 반사형) 위주의 방음대책이 수립되었다. 그러나 2015년 이후 방음벽 이외의 배수성저소음포장과 소음감쇠 기를 저감방안으로 제시하였다. 그러나 보고서마다 소음저감효과가 서술되어 있거난 서술되어 있지 않았다. 환경영향평가 이후 신규소 음저감대책이 수록된 소음영향분석보고서에서 최근 5년간 보고서 일부를 중심으로 검토하였다. 소음대책 수립을 위해서 20년 후 장래 교통량을 이용하여 방음벽 신설, 방음터널, 소음감쇠기, 배수성저소음포장 등의 소음저감대책을 수립하였으며 방음벽과 배수성저소음 포장을 조합한 대책안이 많이 제시되었다.
This study was conducted for the purpose of systematically identifying research trends in technology transfer and commercialization and setting future research directions in academia. Over a total of 35 years (1987-2021), 146 papers related to technology transfer and commercialization were analyzed for research period, research area, research methods, and research subjects. The research results are as follows. First, the largest number of papers (55) was published during the Park Geun-hye administration. Second, among major academic journals, only the ‘Korea Society for Technology Innovation’ had a relatively high proportion of research. Third, quantitative research (38%) was the most widely applied research method. Fourth, the most frequent research target was institutions/systems (44%). Additionally, the results of frequency analysis of 729 keywords were presented in a word cloud. This study is significant as the most current study that attempted bibliographic analysis of technology transfer and commercialization research papers over the past 35 years.
The study is aimed at investigating the impact of self- and peer-assessment on students’ teacher efficacy and satisfaction in lesson planning at a university foreign language pedagogy course. Four self- and peer-assessment sessions for developing pedagogically sound lesson plans were held for 7 weeks. Nineteen students participated in the study. A student questionnaire was collected to see if self- and peer-assessment affected students’ teacher efficacy twice in weeks 1 and 7. In addition, in-depth interviews were conducted to understand students’ perceptions of self- and peer-assessment in terms of its benefits and room for improvement. The research revealed the findings as follows. Firstly, there was a statistically significant impact of self- and peer-assessment of lesson plans on both domains of teacher-efficacy: personal teaching efficacy and teaching outcome expectancy. Secondly, students found self- and peer-assessment satisfactory and useful when building lesson plans. Thirdly, themes for benefits of self- and peer-assessment were ‘objective perspective,’ ‘heightened insight,’ and ‘reflective thinking.’ Lastly, two themes for room for improvement in peer-assessment were ‘offering positive feedback’ and ‘working on the same period.’
In this study, we propose an optimal design method by applying the Prefabricated Buckling Restrained Brace (PF-BRB) to structures with asymmetrically rigidity plan. As a result of the PF-BRB optimal design of a structure with an asymmetrically rigidity plan, it can be seen that the reduction effect of dynamic response is greater in the case of arrangement considering the asymmetric distribution of stiffness (Asym) than in the case of arrangement in the form of a symmetric distribution (Sym), especially It was confirmed that at an eccentricity rate of 20%, the total amount of reinforced PF-BRBs was also small. As a result of analyzing the dynamic response characteristics according to the change in eccentricity of the asymmetrically rigidity plan, the distribution of the reinforced PF-BRB showed that the larger the eccentricity, the greater the amount of damper distribution around the eccentric position. Additionally, when comparing the analysis models with an eccentricity rate of 20% and an eccentricity rate of 12%, the response reduction ratio of the 20% eccentricity rate was found to be large.
To ensure a systematic and integrated approach to defense safety management, individual safety management regulations have been consolidated into the National Defense Safety Directive. However, despite being enacted after the enforcement of the Severe Accident Punishment Act, the National Defense Safety Directive does not incorporate the contents of the Serious Accident Punishment Act. This omission is likely to cause confusion in safety management. In this paper, a PDCA analysis of the Severe Accident Punishment Act and the National Defense Safety Directive was conducted to identify area for improvement and supplementation in the Directive. Chapter 3 proposes amendments to clearly define the scope and responsibilities of safety management, implement serious accident prevention measures and inspections, and establish the penalties for those involved. These amendments aim to ensure faithful compliance with the Severe Accident Punishment Act. Chapter 4 emphasizes the implementation and inspection of risk assessments to enhance the effectiveness of safety accident prevention and preparation, thereby ensuring the completeness of the PDCA cycle.
최근 AI를 활용한 관광객 친화 공감형 AI 서비스는 관광 안내, 관광 가이드, 여행 동반자, 관광 상품 추천, 관광 이벤트 홍보 등의 서비스 를 통해 관광객 편의와 만족도를 높이고, 관광산업의 활성화에 이바지 할 것으로 기대하고 있다. 이에 본 연구는 경쟁이 치열한 관광산업의 경쟁력 강화를 위한 관광객 친화 공감형 AI 서비스를 발전시킬 방안을 제안하는 것을 목적으로 한다. 이를 위해 관련 선행연구가 부족한 상황 을 고려하여 단행본, 신문기사, 전문잡지 등을 최대한 고찰하여 방안을 도출했다. 그 결과, 첫째, 관광객 개별 고객의 욕구에 최적화되고 개인화 된 맞춤형 서비스를 제공해야 한다. 둘째, 관광지의 관광시설과 관광 전 담인력 서비스의 운영을 효율적으로 개선할 방안으로 발전해야 한다. 셋 째, 다양한 장애 요인으로 인해 체험 불가 시 관련 관광 상품과 서비스 를 이용할 방안을 개발해야 한다. 넷째, 관광산업의 지속가능성을 강화하 는 방안으로 발전해야 한다.
본 연구는 한국수어 교육의 양적 확장이 이뤄졌음에도 농인들과의 의사소통이 가능한 청인들이 증가하지 않은 이유를 한국수어 교재의 문제점들에 주목하였다. 한국수어 교재들이 언어학적인 교육과정을 담아내야 한다는 전제하에 한국수어 교재들과 미국수어 교재들을 비교 분석하여 이를 토대로 한국수어 교재의 재구조 화 방안을 제시하는 데에 연구목적을 설정하였다. 분석 대상은 한국수어 교재 12권과 미국수어 교재 2권이었 다. 연구 결과, 외적 구성과 교재 내적인 차원에서의 전체 구성, 학습 내용에서의 주제와 어휘 및 회화 영역에서 한국과 미국 교재들 간의 뚜렷한 차이를 발견하였다. 이에 따른 몇 가지 논의사항은 첫째, 미국수어 교재의 외적 구성은 미국농인이 익숙하며 선호하는 시각적 정보화에 충실했다는 것이다. 둘째, 한국수어 교재들은 미국수어 교재들에 비해 내적 구성에서 ‘계속성’과 ‘계열성’이 미흡하였다. 셋째, 양질의 수어교재 들이 미국에서 개발될 수 있었던 계기들로는 수십 년에 걸친 기초연구들이 뒷받침되어 있었다. 넷째, 언어 교수·학습을 위한 교재가 학습자들에게 유용하도록 짜임새 있게 구성되기 위해서는 언어이론에 근거한 교재를 개발해야 한다. 본 연구의 제언으로는 첫째, 현재 진행 중인 국립국어원에서 발주하여 전문 연구진에 의해 연구되고 있는 한국수어능력 등급별 평가기준 마련, 한국수어교원 2급 교육과정 개선, 한국수어교원 1급 교육과정 개발 등이 최대한 빨리 이뤄져야 한다. 둘째, 미국수어 교재에서 적용하는 농인 친화적인 외적 구성 형태를 모범으로 삼아야 한다. 셋째, 학습 주제, 학습 어휘 및 회화 등 실제 학습 내용을 구성하게끔 하는 한국수어 교육과정의 이론과 방법이 모색되어야 한다. 넷째, 기존 교재들의 재구조화와 그에 따른 향후 신규 개발된 한국수어 교재들을 지속적으로 평가하는 지침과 기준이 마련되어야 한다.
In this study, complaints from visitors in the science museum satisfaction survey were categorized into four primary factors and ten sub-factors. This categorization aimed to provide recommendations for enhancing the Geochang Wolseong Space Creative Science Museum as an illustrative case study. Futhermore, the study examimed the relative importance of each factor by surveying 90 science museum visitors. The following results are obtained. Firstly, it was evident that the Geochang Wolseong Space Creative Science Museum requires urgent improvement. Certainly, in the primary factors, issues related to the utilization environment emerged as the most significant sources of dissatisfaction, while in the sub-factors, the adequacy of fees was identified as the most prominent concern. Secondly, through the result of the IPA (Importance-Performance Analysis) of the complaint factors, four primary issues were identified as top priorities for consideration: fare adequacy, lack of convenient facilities, in sufficient publicity, and a lack of distinctiveness compared to similar facilities. Lastly, when analyzing the relationship between complaints and overall satisfaction, factors related to human service, environment, and educational content had negative effects. In contrast, factors associated with science museum operation exhibited a different trend, suggestinga structural impact relationship with the overall impact of complaints.
South Korea’s first commercial nuclear reactor, Kori Unit 1, was permanently shut down in 2017, and preparations are currently underway for its decommissioning. After the permanent shutdown, the spent nuclear fuel from the reactor core is removed and stored in a spent fuel storage facility. Subsequently, steps are taken for its permanent disposal, and if a permanent disposal site is not determined, it is stored in an interim storage facility (or temporary storage facility). Therefore, the activation criteria for radiation emergency plans vary depending on the movement of spent nuclear fuel and the storage location. In this study, it reviewed emergency plans in the U.S. NRC Regulatory Guide (Draft) titled ‘Emergency Planning for Decommissioning Nuclear Power Reactors’ to determine the requirements for radiation emergency plans needed for decommissioned nuclear power plants. Additionally, by examining emergency plans applied to decommissioning nuclear power plants in the United States, this study identified emergency plan requirement that could be applicable to future decommissioned nuclear power plants in South Korea. This study will contribute to the establishment of appropriate radiation emergency plans for decommissioning nuclear power plants in Korea for providing accurate information on overseas cases and relevant guidelines.
Hypochaeris radicata, native to Europe and Eurasia, is a perennial plant of the Asteraceae family. In Korea, H. radicata was reported in 1992, mainly in Jeju Island, and gradually spreading to the inland. It overwinters in the form of a rosette and blooms yellow flowers from May to June. H. radicata propagates by seeds and rhizomes. The germination temperature of the seed is 15/20°C (day/night), and the rhizome forms a new plant at a depth of 2-3 cm in the soil. The roots of H. radicata secrete allelochemicals that inhibit the development of other plants. Some use it as a salad or forage substitute but to a limited extent. However, extensive research on ampicillin contained in H. radicata has been conducted, and its anticancer and anti-inflammatory effects have been recognized. There are only a few methods to manage H. radicata both culturally and physically. In orchards, soil treatments such as oxyfluorfen and diclobenil, or nonselective foliar treatments such as glufosinate-ammonium and glyphosate are used. Notably, there are no known biological control agents.
과거 청소년 국제교류는 행사나 견학 또는 관광 차원에 머무 르는 경향이 있었으나 최근에는 온라인 플랫폼을 통해 해외 크 리에이터와의 소통도 가능할 뿐만 아니라, 외국인 유저와 게임 을 함께 하는 등 다양한 방식의 소통이 이루어지고 있다. 본 연구의 목적은 온라인 국제교류 서비스를 이용하는 청소 년을 대상으로 온라인 국제교류 이용실태 및 개선방안을 파악 하여 향후 온라인 국제교류 활성화 방안을 알아보는 것이며, 그 결과를 요약하면 다음과 같다. 첫째, 온라인 국제교류활동 이용실태를 분석한 결과 온라인 국제교류 사이트 사용기간은 대체적으로 3개월 미만 정도 사용 한 것으로 나타났고, 온라인 국제교류 사이트 인지경로는 주로 친구나 가족, 지인을 통해 알게 된 것으로 나타났다. 또한 온라 인 국제교류 사이트 이용시간은 대체적으로 30분 미만 이용하 는 것으로 나타났고, 자주 사용하는 온라인 국제교류 종류는 채팅을 많이 사용하는 것으로, 주로 사용하는 온라인 국제교류 사이트는 www.naver.com등과 같은 포탈에서 제공하는 실시간 번역서비스를 주로 사용하는 것으로 나타났다. 온라인 국제교 류 사이트 사용이유는 다른 나라의 새로운 친구들을 만나고 사 귀고 싶어서 사용하는 것으로 나타났고, 온라인 국제교류 사이 트를 통해 친구를 사귀고 싶은 국가는 주로 미국 친구를 사귀 고 싶은 것으로 나타났다. 둘째, 온라인 국제교류 사이트 이용시 경험한 심리적 어려움 은 잘못된 번역으로 인해 오해가 생길 수 있는 점에서 가장 어 려움을 느끼는 것으로 나타났고, 기술적 어려움은 번역 기능상 의 불안정으로 인해 깊이 있는 교류가 불가능한 점에서 가장 어려움을 느끼는 것으로 나타났다. 또한 오프라인 대비 온라인 국제교류 사이트 장점은 시간과 장소를 구애받지 않는 점에서 좋다고 생각하는 것으로 나타났고, 단점은 문자로만 교류를 하기 때문에 상대방의 감정과 의도를 알아내기 힘든 것으로 나타 났다. 이상의 결과를 토대로 온라인 국제교류 사이트 이용실태 및 개선방안과 관련하여 제언을 하면 다음과 같다. 첫째, 온라인 국제교류 사이트는 정책적인 지원과 홍보가 필 요하다. 둘째, 온라인 국제교류 사이트에서 번역기능 개선을 위해 아 낌없는 투자를 해야 한다. 셋째, 온라인 국제교류 사이트에서 채팅 외에 다양한 온라인 교류 활동이 보장되어야 한다.
In this study, sustainable utilization plans were proposed by reviewing the current status and problems of water infrastructure, focusing on water supply and sewage system in Chungcheongnam-do. Due to the regional characteristics of the rural areas in Chungcheongnam-do which has a very low urbanization rate, there is a difference in the level of water welfare services between local governments. Compared to other governments, there are relatively many small water facilities, resulting in a service imbalance in terms of tap water safety. In addition, Chungcheongnam-do has a structure that is very vulnerable to water security to cope with climate change and drought due to its high dependence on wide-area water supply. Therefore, it should be considered in consideration of population reduction and local extinction due to low birth rate and aging population. Rural areas should clearly establish marginal areas for the supply of water and sewage, and implement regional customized water and sewage projects in consideration of local extinction. Water supply projects should be implemented in a distributed water supply method using various water sources. In order to respond to climate change and establish water security, a distributed water supply system should be established through a multi-source water loop system using various water sources. Sewage projects should be establish public sewage treatment facilities in consideration of the priorities of each local government, focusing on local governments with low sewage treatment population rates. In consideration of regional characteristics, it is necessary to consider the installation of private sewage treatment facilities or nature-friendly treatment facilities such as soil infiltration and artificial wetlands. An integrated management system using Internet of Things(IOT) or Information and Communications Technology(ICT) should be established and operated to improve the operation and management efficiency of small-scale water supply and sewage facilities.
Natural radionuclides-containing substances (NORM) contain natural radionuclides and cause radiation exposure. In Korea, safety management measures were needed to deal with and dispose of radon mattresses containing monazite in relation to such NORM. However, there is no clear safety management system related to NORM waste in Korea. In order to manage this reasonably and systematically, it is necessary to investigate and analyze standards and management measures related to the treatment and disposal of NORM waste. Therefore, this study investigated and analyzed the exemption and clearance level of NORM waste regulations in international organizations and foreign countries. IAEA GSR Part 3, 2013/59/Euratom, ANSI/HPS N13.53, CRCPD SSRCR Part N, and ARPANSA Publications 15 safety management regulations were analyzed to investigate safety management standards for NORM waste. The exemption and clearance level in international organizations and foreign countries were compared and analyzed based on radioactive concentration and dose. In addition, the management measures proposed for each literature were also investigated. As a result of the analysis, IAEA GSR Part 3 applied 1 mSv as a regulatory exemption level, 1 Bq/g for uranium and thorium series as a clearance level, and 10 Bq/g for K-40 nuclides. The IAEA recommends a differential approach to the potential and scale of exposure. The EU applied 1 Bq/g to uranium and thorium families and 10 Bq/g to K-40 nuclides for both regulatory exemption and clearance levels. The EU recommended that it be managed in proportion to the scale and likelihood of exposure as a result of the action. It is analyzed that this is similar to the IAEA’s management plan. In the United States, there was no single federal government radioactive concentration and dose for NORM management. The management plan differed in management status and level from state to state, and K-40 was excluded from regulation unless it was intentionally enriched. In the case of Australia, the radioactive concentration of uranium and thorium was 1 Bq/g as a standard for regulatory exemption and 1 mSv as a dose. As a management plan, it was suggested to dispose of waste by means of accumulation, dilution/dispersion, and reclamation. It was also suggested that the scale of exposure, like international organizations, take into account the possibility. The results of this study are believed to be used as basic data for presenting domestic NORM waste treatment and disposal methods in the future.
As an initial part of Kori-1 & Wolsung-1 Unit decommissioning planning, a characterization plan is developed to define the nature, extent and location of contaminants, determine sampling locations and protocols, determine quality assurance objectives for characterization, and define documentation requirements. The actual characterization of a facility is an iterative process that involves initial sampling according to the characterization plan, field management (such as labeling, packaging, storing, and transport) of the samples, laboratory analysis, conformance to the data quality objectives (DQOs), and then identifying any additional sampling required, refining the DQOs, and modifying the characterization plan accordingly. The final product of the facility characterization is a document that describes the type, amount, and location of contaminants that will require consideration and removal during the decommissioning operations sufficient to prepare a decommissioning plan. In this study, implementing a characterization plan, developed in accordance with this standard, will result in obtaining or deriving the above information.
As of 2023, there has been significant progress worldwide in the management of nuclear fuel’s spent radioactive waste (HLW). Several countries have made important strides in advancing their plans for the construction of deep geologic repositories (DGRs) to safely dispose of their nuclear waste. Finland led the way, with its nuclear waste management organization, Posiva Oy, submitting an application for an operating license for a DGR for spent fuel generated by the nuclear power plants of its owners. The facility, ONKALO, will be located on the island of Olkiluoto and is expected to begin final disposal in the mid-2020s. Sweden also approved SKB’s application to build a DGR in Forsmark, and an encapsulation plant next to the Clab interim storage facility. In Switzerland, Nagra selected Nordic Lagern as the site for the Swiss DGR, and is preparing the general license applications for the required facilities. Meanwhile, Canada’s Nuclear Waste Management Organization (NWMO) narrowed down the possible locations for its DGR to two, and expects to name its preferred site by fall 2024. The UK established four Community Partnerships to participate in the siting process for a DGR, with Nuclear Waste Services (NWS) responsible for identifying a site. Andra, the French organization responsible for managing all French radioactive waste, is expected to submit an application by the end of the year for a DGR in France that will contain HLW resulting from reprocessing of spent fuel assemblies from French nuclear power plants, as well as intermediate-level waste. Overall, the progress made by these countries represents a tangible and sustainable step forward in the management of spent fuel and HLW, and brings us closer to the safe and effective long-term disposal of nuclear waste.
스마트농업의 활성화를 위해서는 농업환경 데이터의 관측과 모델 그리고 통계자료의 상호운영성 확보가 중요하므로, 이를 위한 격자체계의 적용방안을 탐색하고자 한다. 국내외 격자체계 표준에 대한 사례조사와 농업분야의 격자표준 적용사례조사를 벤치마킹하고 국립농업과학원과 상위기관의 표준현황을 살펴보고, 농업환경 공간정보의 목록과 분류체계를 구축한 후, 사용자 요구사항을 파악하기 위한 설문을 실시하여 적정한 격자 크기를 선정하였다. 농업환경 공간정보의 공유와 활용을 위하여 국토지리 정보원의 기관표준을 차용하여 군 이하 소규모 지역은 10m, 광역시・도는 100m, 농촌경관 목적으로는 500m, 전국은 1km 격자 크기로 안을 제시하였고 원활한 표준 적용을 위한 전략을 제안하고, 현장 조사 및 관측 결과를 격자로 변환할 수 있도록 오픈소스 기반의 변환 툴을 개발하여 격자표준 적용 용이성과 시간 절약성을 확보하였다.
Paspalum distichum and P. distichum var. indutum are perennial weeds of the family Poaceae that prefer moist environments such as waterfronts and waterways. The origin of both species is North America. P. distichum is distributed all over the world. However, P. distichum var. indutum occurs only in the United States, Japan, and Korea. For this reason, in many countries, P. distichum and P. distichum var. indutum are classified as the same species. In other words, P. distichum var. indutum is a different ecological type of P. distichum. Both species can reproduce and spread mainly by rhizome fragments rather than seeds. This rhizome has a characteristic that it does not germinate if it is buried in the ground with depth of more than 3 cm. As a management method for P. distichum and P. distichum var. indutum in agricultural lands (paddy fields), it is effective to combine cultural control and chemical control methods. In other words, combining deep plowing and harrowing can suppress the budding of water sparrow that has invaded paddy fields or fallow paddy fields. After that, these two species that germinate can be controlled by spraying soil treatment herbicides such as butachlor and thiobencarb or foliar treatment herbicides such as cyhalofop-butyl and fenoxaprop-pethyl.