• 한국콘텐츠학회논문지
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• 제21권12호
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• pp.132-139
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• 2021

본 코퍼스 기반 연구는 통사론 영역에서 자주 등장하는 학술어휘들을 목록화하고 추출된 단어 목록을 Coxhead(2000)의 학술어휘 목록(AWL) 및 West(1953)의 기본어휘 목록(GSL)과 비교하여 통사론 코퍼스 내의 어휘 분포와 범위를 조사하였다. 이를 위해 영어교육 전공자들이 주로 사용하는 필수 통사론 전공 서적을 546,074 단어 수준의 전문 코퍼스로 구축한 다음 AntWordProfiler 1.4.1로 분석하였다. 빈도를 기준으로 분석한 결과 16회 이상 등장한 학술어휘는 288개(50.5%), 15회 이하 등장한 학술어휘는 218개(38.2%)로 나타났다. AWL과 GSL의 출현 범위는 각각 9.19%와 78.92%로 나타났으며 GSL과 AWL을 포함한 비중은 전체 토큰의 88.11%에 달하였다. AWL이 광범위한 학술 요구를 충족시키는데 중추적인 역할을 할 수 있다는 점을 감안할 때, 본 연구는 학문 문식성과 학업 능력을 향상시키기 위한 방안으로 학문 분야별 학술 어휘목록을 편성할 필요가 있음을 강조하였다.

• Nuclear Engineering and Technology
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• 제54권5호
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• pp.1588-1596
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• 2022

In the nuclear power plants, stainless steel is widely used for fabrication of various components such as piping and pipe fittings. These piping components are subjected to cyclic loading due to start up and shut down of the nuclear power plants. The application of cyclic loading may lead to initiation of crack at stress raiser locations such as nozzle to piping connection, crown of piping bends etc. of the piping system. Crack initiation can also take place from the flaws which have gone unnoticed during manufacturing. Therefore, prediction of crack initiation life would help in decision making with respect to plant operational life. The primary objective of the present study is to compile various analytical models to predict the crack initiation life of the pipes with notch. Here notch simulates the stress raisers in the piping system. As a part of the study, Coffin-Manson equations have been benchmarked to predict the crack initiation life of pipe with notch. Analytical models proposed by Zheng et al. [1], Singh et al. [2], Yang Dong et al. [25], Masayuki et al. [33] and Liu et al. [3] were compiled to predict the crack initiation life of SA312 Type 304LN stainless steel pipe with notch under fatigue loading. Tensile and low cycle fatigue properties were evaluated for the same lot of SA312 Type 304LN stainless steel as that of pipe test. The predicted crack initiation lives by different models were compared with the experimental results of three pipes under different frequencies and loading conditions. It was observed that the predicted crack initiation life is in very good agreement with experimental results with maximum difference of ±10.0%.

• 한국의상디자인학회지
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• 제24권2호
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• pp.59-72
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• 2022

The online fashion market in the 21st century has shown rapid growth. Against this backdrop, using consumer activity data to provide customized customer services has emerged as a viable business model that draws attention. Algorithm-based personalized recommendation services are a good example. But their application in fashion products has clear limitations. It is not easy to identify consumers' perceptions of the attributes of fashion, which are various, hard to define, and very sensitive to trends. So there is a need to compile data on consumers' underlying awareness and to carry out defined research to increase the utilization of such services in the fashion industry and further engage consumers. This research aims to classify the attributes and types of fashion products and to identify consumers' perceptions of a given situation where a recommendation service is offered. To find out consumers' perceptions of and satisfaction with recommendation services, an online and mobile survey was conducted on women in their 20s and 30s, a group that uses recommendation services frequently. A total of 455 responses were used for analysis. SPSS 28.0 was used, combined with Conjoint Analysis and multiple regression, to analyze data. The study results could provide insights into a better understanding of recommendation services and be used as basic data for companies to identify consumers' preferences and draw up a detailed strategy for market segmentation.

• 한국소프트웨어감정평가학회 논문지
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• 제16권1호
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• pp.37-44
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• 2020

소프트웨어의 유사성 비교는 소스코드를 대상으로 한다. 소스코드는 프로그램 언어로 표현된 개발자의 지적 저작권으로 보호된다. 문서형식으로 작성된 프로그램 소스코드는 개발자의 전문지식과 아이디어가 포함된 내용을 포함하고 있다. 소프트웨어 저작권의 불법도용을 판단하기 위한 감정 작업은 원본과 비교본의 소스 코드를 대상으로 파일의 구성과 내용을 검증하는 방법으로 수행된다. 그러나 실제적으로 피고소인 측의 불성실한 목적물 제공으로 소스코드의 일대일 비교감정이 어려운 상황이 증가하고 있다. 이 경우 실행코드에 대한 비교감정이 수행되어야 하며, 역어셈블 방법, 역공학기법, 기능실행의 시퀀스 분석 등의 간접적인 방법이 적용된다. 본 논문에서는 소스코드제공이 어려운 상황에서 시스템과 실행코드 파일을 대상하는 하는 감정 사례를 통해 간접적인 비교결과의 유효성에 대해 분석하고, 감정결과에 활용하는 방안을 제시한다.

• 정보처리학회논문지:컴퓨터 및 통신 시스템
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• 제12권4호
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• pp.127-134
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• 2023

본 논문에서는 gcc 기반으로 개발된 eCos 운영체제 및 PROFINET 통신 스택을 IAR 컴파일러로 포팅하는 방법에 대해 설명한다. eCos 운영체제의 경우 PROFINET 구동을 위한 멀티 스레드, TCP/IP, 디바이스 드라이버 등의 기반 기능을 제공하고 있어, PROFINET 어플리케이션 개발시 변경할 필요가 없다. 따라서, 본 연구에서는 eCos는 gcc로 빌드된 라이브러리를 활용하고, 개발시 변경이 필요한 PROFINET 통신 스택은 IAR 로 포팅하여 함께 링킹하는 방안을 제안한다. IAR 링커와 gcc 링커의 차이로 인해 일부 섹션의 주소를 정의하는 심볼과 생성자의 주소가 정상적으로 생성되지 못하는 문제가 있어, MAP 파일을 읽어 해당 심볼 및 주소를 저장하는 외부 툴을 개발하였으며, 이 툴과 연동하여 동작할 수 있도록 부트로더의 소스 코드를 수정하였다. 제안하는 방법을 검증하기 위해 실제 지멘스 사의 PLC와 연결하여 PROFINET IRT 통신으로 실제 I/O 가 정상 동작하는지 검증하였으며, IAR 컴파일러가 컴파일 시간 및 생성된 바이너리 크기 모두 더 좋은 성능을 가지고 있음을 확인하였다. 본 연구에서 제안하는 방법은 eCos 및 PROFINET 통신 스택뿐 아니라 다양한 오픈 소스를 상용 컴파일러로 포팅하는데 도움을 줄 것으로 기대한다.

• 한국컴퓨터정보학회논문지
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• 제14권10호
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• pp.23-29
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• 2009

본 논문에서는 임베디드 네트워크 기술 교육용 시스템 설계를 제시하였다. 본 논문에서 제시한 교육용 임베디드 네트워크 실습장비는 사용자가 인터넷 환경에서 네트워크 구성과 임베디드 네트워크 프로그래밍 실습 교육을 할 수 있도록 설계 및 구현되었다. 네트워크 기술 교육용 시스템 설계를 임베디드 환경에서 이더넷 인터페이스를 바탕으로 제시하였다. 개발 환경으로는 PXA255를 CPU로, 디버깅 환경은 ADSv1.2를, RTOS는 uC/OS276를, 개발 언어는 C언어를 사용하였다. 교육 환경으로는 Ping 프로그램을 제공하여 실습생으로 하여금 컴파일 및 로딩이후 데모 동작을 우선 실행하도록 하였다. 이후 이의 데모 기능의 프로그래밍 기술을 교육하기 위해 단계별로 교육시키도록 하였다. 즉, ARP 프로그래밍 기법을 다룬 후 IP 기반위에서 ICMP 프로그래밍 기법의 프로그래밍을 완성하도록 하였다.

• 한국기후변화학회지
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• 제10권3호
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• pp.237-242
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• 2019

Ammonia is main precursor gas of secondary particulate matter and contributes almost 78% of total ammonia emission from the agricultural sector in Korea. The current method of estimating ammonia emission from fertilizer application, which contributes 7% of the total emission, has high uncertainty and needs to be improved to better predict PM2.5 concentration. In this study, we suggest an improvement method for ammonia emission quantification from fertilizer application. The first improvement was in the emission factor of NPK fertilizer by conducting a field study to verify the currently used factor. The improved NPK emission factor of 52.2 kg NH ton-1N was confirmed by comparing with the value from the EEA (European Environment Agency) and adjusting the value for the Korean climate and soil conditions. We also improved the amount of fertilizer usage by including the sales amount to the fertilizer supply amount of the Korean Farmers Association, increasing total fertilizer usage by 39.8%. As the statistical data on fertilizer supply and sales are compiled yearly, we estimated monthly emission of ammonia by considering cultivated areas and timing of fertilization for each crop. In summary, we suggest a novel and practical method to improve estimation methodology of ammonia emission from the field of fertilizer application: 1) emission factor of NPK fertilizer was reconfirmed; 2) total amount of fertilizer use was revised considering fertilizer sales; and 3) monthly emission of ammonia was realized by considering different crop practices. A bottom-up approach to compile activity data is needed to increase the estimation accuracy of monthly emission of ammonia, which is very helpful for predicting PM2.5 concentration.

• 수산경영론집
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• 제54권3호
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• pp.69-92
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• 2023

The 'Japanese Useful Fisheries Classification Table', published in advance before the publication of the "Useful Fisheries of Japan", is the first data to classify and introduce fisheries animals and plants in a single table. Therefore, it had received public attention immediately. However, The academy of animal studies at that time quickly pointed out that this classification table was a mixture of traditional and modern classifications, and that there were too many errors. However, Yoshio Tanaka, who was in charge of revising Yamamoto Arikatana, that wrote the classification table, was not an adherent of traditional taxonomy, nor was he ignorant of modern taxonomy. Nevertheless, the classification table, which was quite different from the well-known zoological classification at that time, was prepared. For example, the top classifications of marine organism are not at the same level, but rather a mixture of phylum and class, while the water insect contains several phylums, including Arthropoda, Echinodermata, Mollusca, and Coelenterata. As such, the method of classification of animals in the classification table was hard to understand in the zoological academy at that time. The reason for this unusual taxonomy was that the classification table showed classification of useful fisheries products, not intended to convey academic classification. In other words, it is not for the purpose of academic classification of all fishery products, but for the purpose of presenting standards that can be easily understood by those engaged in the collection, manufacture, and aquaculture of fishery products. This principle of 'Useful Fisheries of Japan' is also ascertained in the "Fishing Methods of Japan" and "Fishery Products of Japan". Regarding the collection and processing of marine products, it could have shown how to catch whales, which are mammals, and how to dismantle whales and obtain oil and meat, according to academic classifications. However, the first appearances in the book include dried squid, abalone, shark fins, and sea cucumbers. In other words, the most important fishery products at that time are presented first. The contents of the classification table, which is considered somewhat bizarre, show where the purpose to compile Useful Fisheries of Japan.

• ALGAE
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• 제39권1호
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• pp.43-50
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• 2024

Oomycetes are ubiquitous heterotrophs of considerable economic and ecological importance. Lately their diversity in marine environments has been shown to be greatly underappreciated and many lineages of intracellular holocarpic parasites, infecting micro- and macro-algae, remain to be fully described taxonomically. Among them, pathogens of marine red algae have been studied extensively as they infect important seaweed crops. Throughout the 20th century, most intracellular, holocarpic biotrophic oomycetes that infect red algae have been assigned to the genus Olpidiopsis Cornu. However, 18S rRNA sequencing of Olpidiopsis saprolegniae, the species considered the generitype for Olpidiopsis, suggests that this genus is not closely related to the marine pathogens and that the latter requires a nomenclatural update. Here, we compile and reanalyze all recently published 18S rRNA sequence data for marine holocarpic oomycetes, with a particular focus on holocarpic pathogens of red algae. Their taxonomy has been revised twice over the past four years, with suggestions to transfer them first into the genus Pontisma and then Sirolpidium, and into a monogeneric order, Pontismatales. We show however, that previously published topologies and the proposed taxa Pontisma, Sirolpidium, and Pontismatales are unsupported. We highlight that name changes that are unfounded and premature create confusion in interested parties, especially concerning pathogens of marine red algae that infect important seaweed crops. We thus propose that the names of these holocarpic biotrophic parasites of red algae are retained temporarily, until a supported topology is produced with more genetic markers to enable the circumscription of species and higher-level taxa.

• Tuberculosis and Respiratory Diseases
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• 제87권4호
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• pp.415-439
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• 2024

Background: Successful liberation from mechanical ventilation is one of the most crucial processes in critical care, because it is the first step through which a respiratory failure patient begins to transition out of the intensive care unit, and return to normal life. Therefore, when devising appropriate strategies for removing mechanical ventilation, it is essential to consider scientific and systematic approaches, as well as the individual experiences of healthcare professionals. Recently, numerous studies have investigated methods and tools to identify when mechanically ventilated patients are ready to breathe on their own. The Korean Society of Critical Care Medicine therefore provides these recommendations to clinicians for liberation from the ventilator. Methods: Meta-analyses and comprehensive syntheses were used to thoroughly review, compile, and summarize the complete body of relevant evidence. All studies were meticulously assessed using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) method, and the outcomes were presented succinctly as evidence profiles. These evidence syntheses were discussed by a multidisciplinary committee of experts in mechanical ventilation, who then developed and approved the recommendations. Results: Recommendations for nine questions on ventilator liberation about Population, Intervention, Comparator, and Outcome (PICO) are presented in this document. This guideline presents seven conditional recommendations, one expert consensus recommendation, and one conditional deferred recommendation. Conclusion: We developed these clinical guidelines for mechanical ventilation liberation to provide meaningful recommendations. These guidelines reflect the best treatment for patients seeking liberation from mechanical ventilation.