Since the interaction between the second-phase particle and grain boundary was theoretically explained by Zener and Smith in the late 1940s, the interaction of the second-phase particle and grain boundary on the microstructure is commonly referred to as Zener pinning. It is known as one of the main mechanisms that can retard grain growth during heat treatment of metallic and ceramic polycrystalline systems. Computer simulation techniques have been applied to the study of microstructure changes since the 1980s, and accordingly, the second-phase particle–grain boundary interaction has been simulated by various simulation techniques, and further diverse developments have been made for more realistic and accurate simulations. In this study, we explore the existing development patterns and discuss future possible development directions.

Recently, unmanned aerial vehicles (UAV, Drone) are highly regarded for their potential in the agricultural field, and research and development are actively conducted for various purposes. Therefore, in this study, to present a framework for tracking research trends in UAV use in the agricultural field, we secured a keyword search strategy and analyzed social network, a methodology used to analyze recent research trends or technological trends as an analysis model applied. This study consists of three stages. As a first step in data acquisition, search terms and search formulas were developed for experts in accordance with the Keyword Search Strategy. Data collection was conducted based on completed search terms and search expressions. As a second step, frequency analysis was conducted by country, academic field, and journal based on the number of thesis presentations. Finally, social network analysis was performed. The analysis used the open source programming language 'Python'. Thanks to the efficiency and convenience of unmanned aerial vehicles, this field is growing rapidly and China and the United States are leading global research. Korea ranked 18th, and bold investment in this field is needed to advance agriculture. The results of this study's analysis could be used as important information in government policy making.

1. 러시아는 세계 3위 감자 생산 대국이며 감자는 밀과 함께 러시아의 중요한 식량작물로서 2018년 현재 약 1,314천 ha에서 재배되고 있다. 2. 러시아의 감자 총생산량은 2018년 22,395천 톤 내외이며 ha당 생산량은 1992년 11.4 톤에서 2018년 17.1 톤으로 5.7 톤 증가했다. 3. 신선감자와 냉동감자의 수입이 꾸준히 늘고 있으며 신선 감자 수입은 지난 25 년동안 1992년 425천 톤에서 2017년 561천 톤으로 136천 톤 증가했고 냉동감자 수입은 118.0천 톤 증가하여 2017년 118.4천 톤이었다. 4. 신선감자 수출량은 최근 급증하여 2017년 현재 200천 톤 내외인 반면 냉동감자 수출량은 2017년 1.5천 톤으로 매우 미미하였다. 5. 감자 품종의 경우 400종 이상이 등록되어 있으며 이들 중 약 51.1%는 자체(CIS 국가 포함) 육성 품종이고 나머지는 네덜란드, 영국 등 해외 도입종이다. 6. 러시아 국민 1인당 연간 감자 소비량은 110 kg 내외로 지난 25년간 큰 변화가 없는 반면 가공용 감자 소비는 꾸준히 감소하여 2017년 400천 톤 규모였다. 7. 매년 6,500천 톤의 씨감자가 사용되고 있는 반면 자체 수급체계가 미비하고 고품질 씨감자의 수입도 4~9천 톤에 불과하여 씨감자 문제가 갈수록 심화되고 있다. 8. 우리나라 감자 9종의 현지 시험재배 결과, 현지품종 대비 파종후 성숙은 빠른 반면 괴경수량이 적고 괴경의 평균 무게가 가벼우며, 역병저항성이 약한 편이었다. 다만 국산품종 중 ‘아리랑1호’, ‘조풍’은 조숙 및 다수성을 나타내어 현지 진출이 유망할 것으로 판단되었다. 9. 구 소련 해체와 함께 고도의 씨감자 기술 및 체계가 붕괴된 러시아는 현재까지 씨감자 수급체계 및 기술이 낙후되어 있고 고품질 씨감자에 대한 수요도가 높아 한국 씨감자 업체 의 러시아 감자시장 진출 전망은 밝은 편이다.

In the new media environment, the two different media types, game and film, fused to each other to create a qualitative change to form a new media type. In recent years, there has been an increasing trend in the background of the convergence of virtual technology and media. Therefore, movies based on the game were produced. In this heat, it is necessary to analyze the gains and losses of the reorganization in a cool way, to review the current state of filming of the game, and to examine the new convergence of games and films in the rapid environment of new media technology. In addition, it is necessary to consider the problems presented in the fusion process of the two mediators and how to develop them in the future.

본고는 당대 중국에서 일어난 사회적 변화에 착안하여 교재 내 대화 내용과 그 사회 배경에도 상응하는 변화가 있어야 함을 주장하고 그에 관한 견해를 제시함으로써 향후 교재개발에 참고점을 제공하는 데 목적이 있다. 본고는 중국의 경제와 기술 발전에 따른 일상의 질적인 변화, 그 중에서도 모바일 기기를 이용한 가치 교환의 방식과 언어 사용량의 변화에 초점 을 둔다. 그리고 이 같은 시대 변화를 교재가 담아내기 위해 무엇을 염두에 두어야할 지를 고찰한다. 이를 위해, 본고는 먼저 언어사용의 변화와 교재가 갖는 보수성을 지적한다. 나아가 모바일 상용에 따른 거래 방식의 변화와 발화량의 축소에 대해 논의하고 행위과정과 존재 양식에서 발생한 말의 변화를 교재 내용에 어떻게 반영할 것인지를 변용과 신구성이란 측면에서 예시로써 제안한다.

The magnetocaloric effect (MCE), which is the reversible temperature change of magnetic materials due to an applied magnetic field, occurs largely in the vicinity of the magnetic phase transition temperature. This phenomenon can be used to induce magnetic refrigeration, a viable, energy-efficient solid-state cooling technology. Recently, Metal-organic frameworks (MOFs), due to their structural diversity of tunable crystalline pore structure and chemical functionality, have been studied as good candidates for magnetic refrigeration materials in the cryogenic region. In cryogenic cooling applications, MCE using MOF can have great potential, and is even considered comparable to conventional lanthanum alloys and magnetic nanoparticles. Owing to the presence of large internal pores, however, MOF also exhibits the drawback of low magnetic density. To overcome this problem, therefore, recent reports in literature that achieve high magnetic entropy change using a dense structure formation and ligand tuning are introduced.

목적 : 본 연구는 우리나라 고령자를 위한 가정환경수정 및 주택개조 연구의 경향을 확인하고, 초고령 사회를 준비하는 측면에서 고령자의 정주성 도모를 위한 가정환경수정이 나아가야 할 방향을 제시하고자 하였다. 연구방법 : 문헌고찰을 위해 국가과학기술정보센터(National Digital Science Library; NDSL), 학술연구정보서비스(RISS), EMBASE, Google Scholar를 이용하여 2008년 1월부터 2017년 12월 현재까지 국내에서 이루어진 연구를 검색하였으며, 검색용어로는 “가정환경수정” 또는 “가정환경 수정” 또는 “주택 개조” 또는 “주택개조” 또는 “home modification”, OR “home modifications”, OR “residential modification”, OR “residential modifications”를 사용하였고, 검색 제외어로 “가이드라인” 또는 “guideline”과 “고찰” 또는 “review”를 사용하였다. 결과 : 검색을 통해 총 374건의 자료를 수집하였으며, 중복자료를 제외한 후 포함기준과 제외기준을 적용하여 최종적으로 14편의 연구를 추출하였다. 고령자를 위한 가정환경수정 연구가 2009년부터 꾸준히 발표되고 있으며 최근 들어 연구가 더욱 활발하게 진행되는 경향을 발견하였다. 연구주제로는 가정환경 수정 실태나 요구, 선호에 관한 연구가 가장 많았다. 연구방법으로는 양적연구방법이 가장 많이 이용되었으나 차츰 질적 연구나 통합 연구방법의 사용 빈도가 높아지는 경향이 나타났다. 결론 : 고령자와 가족구성원의 개인적, 물리적, 사회적 가정의 의미를 종합적으로 고려할 수 있는 전문가 협업구조에 기반한 맞춤형 가정환경수정의 적용이 필요하며, 정부의 지역사회 통합 돌봄 기본계획의 시행과 더불어 탈시설화와 고령자의 정주성 도모를 위한 가정환경수정 서비스 모델 개발이 요구된다.

Vietnam is located in the centre of Asia - Pacific, on international maritime routes. With a long coastline of about 3260 km stretching from North to South, Vietnam has many favourable conditions to bring import and export goods to the world. Not only its production, but Vietnam is also an ideal place to conduct transhipment activities such as transit, border-gate transfer, and temporary import for re-export. Vietnam is a country with favourable natural conditions and geographical location to develop logistics services. Along with the process of opening and integration, the volume of goods produced, domestically circulated and exported and imported in recent years has grown strongly, which is the premise and driving force for the development of logistics services. Logistics is becoming an essential service industry of international trade activities and attracts extraordinary attention to the economic community. The role of science and technology in development has been widely accepted. In today's increasingly competitive international environment, technology is a vital strategic element for rapid socio-economic development. Thanks to technological innovation, businesses have many opportunities to improve productivity, product quality, as well as to improve the ability in designing new production lines, new products and improving the efficiency in business management and operation. In order to survive and develop sustainably, all countries have preferential policies to encourage businesses to innovate technology. Moreover, businesses also recognize the need for technological innovation to keep pace with the world's development trend; this is the experience gained from countries with developed economies. This paper presents some issues on trends and applications of information technology, blockchain technology in the field of supply chain management and logistics to improve the competitiveness and develop logistics services of Vietnam. On that basis, the article also proposes several recommendations to support businesses in innovation and technology application in managing and operating this critical economic sector.

The transition from “More-of-Less” markets (economies of scale) to “Less-of-More” markets (economies of scope) is supported by advances of disruptive manufacturing and reconfigurable-supply-chain management technologies. With the prevalence of cyber-physical manufacturing systems, additive manufacturing technology is of great impact on industry, the economy, and society. Traditionally, backbone structures are built via bottom-up manufacturing with either pre-fabricated building blocks such as bricks or with layer-by-layer concrete casting such as climbing form-work casting. In both cases, the design selection is limited by form-work design and cost. Accordingly, the tool-less building of architecture with high design freedom is attractive. In the present study, we review the technological trends of additive manufacturing for construction-scale additive manufacturing in particular. The rapid tooling of patterns or molds and rapid manufacturing of construction parts or whole structures is extensively explored through uncertainties from technology. The future regulation still has drawbacks in the adoption of additive manufacturing in construction industries.

This paper examines the trend of restructuring and direction of management response in the Large Purse Seine Fishery. The large-scale fishing industry is one of the most popular fishing areas in the coastal area, and it has been developed by providing exclusive supplies of many types of catchy fish, such as mackerel and horse mackerel through physical productivity in fleet operations. However, the Large Purse Seine Fishery has been declining in profitability due to the deterioration of the business environment since 2000. It is at a crossroads whether it will disappear or regenerate as it is. The Large Purse Seine Fishery's current problems are: firstly, the continued deterioration of the fishery business balance and worsening labor problems, secondly, insufficient freshness management and quality control after landing, and thirdly, import competition. The fourth is the intensification of the market competition, which is the evolution of fishing variability and the increase in the proportion of small fish. The fifth is the reduction of the operating fishing ground due to the suspension of mutual fishing in Korea and Japan. To address these problems and suggest management response directions for the survival of large-scale fishing businesses is as follows. First, a sustainable production system should be established through strengthening resource management and promoting international fisheries cooperation. Second, the profitability of fishing management should be improved by introducing a low-cost supplier system and securing a stable labor force. Third, we should improve the leading and quality control of catch, improve the high value-added value of catch through brand development, and secure competitive advantage with imported produce. Finally, the government should establish a cooperative system among private sector, government, and research institutes to push ahead with these tasks and strengthen the competitiveness of the front and rear industries.

Purpose: The purpose of this study was to analyze trends in articles published in the Journal of Korean Society for Simulation in Nursing (KSSN) and to provide future directions for improvement. Method: The study analyzed data collected from 57 research articles published in KSSN between 2013 and 2018. A descriptive analysis was conducted with a focus on frequency and percentage for quantitative data. Results: The proportion of articles on quantitative research was 80.7%, while the proportion of articles on qualitative research was 15.8%. The majority of the quantitative research was focused on experimental study (47.4%). The prevailing data collection settings were school (75.4%), and for the data analysis, descriptive statistics (71.9%), t-test (50.1%), ANOVA (19.3%) and chi-square test (17.5%). The analysis results based on the simulation education research showed that the most frequently used scenario topics were delivery care and postpartum hemorrhage. The most frequently used variables measured were clinical performance (43.8%), problem-solving process (31.3%), self-confidence (31.3%), and self-efficacy (28.1%). Conclusion: Especially in the case of simulation nursing, there is a need to encourage research into utilizing a variety of research methodologies and simulations.

문화대혁명을 주도한 4인방이 실각 되면서 중국은 새로운 근대화 단계에 접어든다. 이 시기 새로 운 생활방식 도입과 중국 문단의 변화는 조선족 문단에도 영향을 끼친다. 철저한 계급의식과 사회주의 이념으로 무장했던 과거와 달리, 문화대혁명 시대의 규제에서 벗어난 조선족 문단은 새로운 사회의 변화를 문학에 수용하고 반영하기 시작한다. 이 글은 이러한 변화와 맞물려, 조선족 문단의 대표 극작가라 할 수 있는 리광수 희곡을 통해 1980년대 이후 조선족 희곡에 나타난 세태 반영 양상을 살펴보았다. 리광수 희곡은 중국의 개방정책 이후 변모하는 조선족 사회의 단면들을 가장 잘 보여주고 있다. 희곡집 ≪사랑의 품≫과 TV드라마 대본집 ≪사랑의 샘≫을 통해 개혁개방 이후 조선족의 삶을 밀도 있게 다루고 있다. 그는 작품을 통해 자본주의 시장경제의 유입으로 혼돈과 변화를 거듭하는 조선족 사회에 대한 낙관적 관망과 더불어, 혼란과 분열에 대한 작가적 대안을 제시하려 했다. 당시 중국 조선족 사회의 변화를 작품 안에 담아내고, 문제의식을 형상화함으로 써 ‘상처문학’의 한계점을 극복하고 있다는 점에서 그 의의를 찾을 수 있다. 이러한 리광수 희곡 의 변모 양상은 개방 이후 조선족 사회가 직면하게 된 개혁해방에 대한 태도의 변화와 궤를 같 이하며, 그의 조선족 사회에 대해 정확한 인식을 엿볼 수 있는 지점이다. 리광수는 80년대 이후 변화하는 중국 조선족 사회를 가장 적확하게 표현한 극작가라 할 수 있다.