대량한천희석법을 이용한 감귤검은점무늬병균에 대한 살균제 저항성 모니터링

신호철(Ho Cheol Shin),김재호(Jae Ho Kim),장호중(Ho Jung Jang),이근식(Gun Sik Lee),김태화(Tae Hwa Kim),김흥태(Heung Tae Kim) 한국농약과학회 2024 농약과학회지 Vol.28 No.4

『한말연구』의 국어교육 연구 동향과 앞으로의 과제

신호철 ( Shin Ho-cheol ) 한말연구학회 2016 한말연구 Vol.- No.41

This study analyses research trend about 56 Korean education research papers those are printed in a 『Korean Language Research』 academic journal and suggests opinions about problems. First, the study divides Korean education area into curriculum content area and curriculum education area. Grammar part is the largest printed research in a 『Korean Language Research』. But Reading and writing part is the largest printed research in a 『Korean Language Research』 as integrated curriculum content and curriculum education. According by year, Korean education area research printed first time in 2000. From that year researches were printed steadily, 5 researches were printed every year during 2007 to 2011. Total number of researchers are 39, 30 researchers wrote each one. The task that has to be solved by Korean education area is correspond to Academy`s identity. For this, the study suggests research topic has to be limited only Grammar or integrated research topic that includes Grammar. And the study suggests create various topics for external extension of Grammar education and extends Korean education researchers. 30 years later, the study expects all of the areas` researches will be celebrated at Korean Language Research Circle`s 60th anniversary.

초음속 이중 압축 램프의 앞전 곡률에 따른 천이 유동 해석

신호철(Ho Cheol Shin),사정환(Jeong Hwan Sa),박수형(Hyung Park),변영환(Yung Hwan Byun) 한국전산유체공학회 2015 한국전산유체공학회지 Vol.20 No.4

Accurate prediction of supersonic transition is required for the heat transfer estimation over supersonic double compression ramp flows. Correlation-based transition models were assessed for a supersonic double ramp problem. Numerical results were compared with experimental data from RWTH Aachen University. A parametric study on the nose bluntness was performed using a selected transition model. As the nose bluntness increases, the boundary layer thickness is increased and the triple point of shock interactions moves downstream. The peak magnitude of the heat transfer is consequently decreased with the nose bluntness.

초음속 발사체 선두 팽창부의 레이놀즈수 변화에 따른 천이 유동 해석

신호철(Ho-Cheol Shin),박수형(Soo-Hyung Park),변영환(Yung-Hwan Byun) 한국항공우주학회 2017 한국항공우주학회지 Vol.45 No.5

본 연구에서는 초음속 영역에서의 해머헤드형 노즈 페어링을 포함하고 있는 발사체 선 두부에 대한 RANS 전산해석을 수행하였다. 층류, 완전 난류, 천이 모델을 이용한 2차원 축대칭 해석을 수행하여 실험 결과와 비교하였다. 레이놀즈수의 변화에 따라서 다른 유동현상이 나타남을 확인하였다. 높은 레이놀즈수에서는 경계층이 난류가 되어 발사체 표면에서 박리가 되지 않는다. 낮은 레이놀즈수 조건에서는 해머헤드형 노즈 페어링의 팽창-압축 모서리에서 경계층의 박리와 재부착으로 층류 박리 거품이 만들어진다. 받음각이 있는 3차원 계산에서 층류 박리 거품으로 발생되는 와류 구조를 확인할 수 있었다. 레이놀즈수에 따른 박리 거품을 예측하기 위해서 난류 천이를 고려해야 함을 확인할 수 있었다. RANS computational analysis was performed on the head of the launch vehicle including the hammerhead nose pairing in the supersonic regime. The two-dimensional axisymmetric analysis was performed by using laminar, fully turbulent and transition models and compared with the experimental data. It was observed that different flow phenomena occurred depending on the Reynolds number. Under the high Reynolds number condition, the boundary layer becomes turbulent, which is not separated from the surface of the launch vehicle. With the low Reynolds number condition, laminar separation bubble was produced due to the separation and reattachment of the boundary layer on the expansion-compression edge of the hammerhead type nose fairing. The three-dimensional computations with the angle of attack showed a fully detached vortical structure due to the laminar separation bubble. It is proved that the turbulent transition should be considered to predict the separation bubble with the Reynolds number.

『문법』교과서에 '말소리' 단원의 양상과 문제

신호철(Shin Ho-Cheol) 국어국문학회 2008 국어국문학 Vol.- No.150

This paper is discussion of an aspect and problem of a '말소리' unit in the High School Grammar Textbook. I considered the change. a contents organization and a construction organization of a '말소리' unit in The High School Grammar Textbook. The High School Grammar Textbook has served as a messenger of school grammar and a realizer of Korean Language Curriculum from 4th Korean Language Curriculum(I985) to 7th Korean Language Curriculum (present). A 『Grammar』 of 4th~5th Korean Language Curriculum was an academic knowledge transmission-centered textbook. A 『Grammar』 of 6th~7th Korean Language Curriculum was an practical knowledge transmission-centered textbook. We have known that it was a larger number of class activity than a number of learning contents in quantitative content construction of a '말소리' unit. And then I have examine a problems in a '말소리' unit. The problems in '말소리' unit were a problem of terminology, a problems of contents, and a problem of constructions.

교사 문법과 학습자 문법의 비교 연구

신호철 ( Shin Ho-cheol ) 한말연구학회 2018 한말연구 Vol.- No.47

This study discussed that teacher’s grammar and learner’s grammar can be distinguished from some grammar which we used. Also, we discussed the concepts and scope of teacher’s grammar and learner’s grammar. First, this study summarized the various terms and concepts related to grammar that we use, focusing on previous research. As a result, we can classify into 8 major grammatical terms and three major categories. And it is discussed that teacher’s grammar and learne’sr grammar can be set separately by these grammar. We proposed the structure of ‘Transformation of grammatical knowledge' and ‘Cycling process of grammar learning’ as reasons. Therefore, the teacher's grammar is conceptualized as ‘Grammar that can be directly or indirectly internalized to teachers or externalized by teachers', and the learner's grammar is conceptualized as ’Grammar that can be directly or indirectly internalized to learners or externalized by learners'. Also, as the conceptual scope of teacher’s grammar and learner’s grammar, teacher’s grammar is included in academic grammar, learner’s grammar is included in school grammar. And this study discussed the development of academic grammar to school grammar, school grammar to teacher’s grammar and teacher’s grammar to learner’s grammar.

아음속 평판에서의 표면 거칠기에 따른 유동 천이 해석

신호철(Ho Cheol Shin),박수형(Soo Hyung Park),변영환(Yung Hwan Byun) 한국항공우주학회 2016 한국항공우주학회 학술발표회 논문집 Vol.2016 No.11

3차원 스크램제트 흡입구 난류 천이 영향성 분석

신호철(Ho Cheol Shin),박수형(Soo Hyung Park) 한국항공우주학회 2016 한국항공우주학회 학술발표회 논문집 Vol.2016 No.4

문장 부호 규정의 수정과 앞으로의 방향

신호철(Ho Cheol Shin) 한국어학회 2015 한국어학 Vol.67 No.-

In this paper, we summarized feature of the punctuation rules as amended, and proposed a vision for future directions for use of the punctuation rules. An amendment to the punctuation rules in critical of punctuation marks weren``t in the definition included on the opening. Although it was incomplete, they are meaningful that they offered us a punctuation mark starting point. There are horizontal writing of punctuation marks 24 species only in punctuation mark as amended. ‘The arrow parenthesis’ and ‘underline’ punctuation is newly registered. Used in vertical writing ‘Gorijeom, Mojeom’ were deleted, while ‘Natpyo’ is modified a horizontal writing punctuation usage. In amendment to the punctuation rules so far that has been confusion of directions for many problems, it emphasized a practical part for user. Punctuation mark, name of ‘a period : Onjeom’, ‘a comma : Banjeom’ with confusion has decided and ‘a period’ and ‘a comma’, also allowed the use of ‘Onjeom’, ‘Banjeom’. An ellipsis in the case of six points that have been recognized only to take over the center also was allowed to use scored 3 or 6 below, center. Also, the punctuation’s spacing rule relevant provisions are added. So the user had to make it easy to write. The provisions also enjoyed on him. But punctuation mark, Regulation as amended, was attaching narrative to be able to resolve these difficulties were.

Kernel Regression with Correlation Coefficient Weighted Distance

Ho Cheol Shin(신호철),Moon Ghu Park(박문규),Jae Yong Lee(이재용),Skin You(류석진) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.10

Recently, many on-line approaches to instrument channel surveillance (drift monitoring and fault detection) have been reported worldwide. On-line monitoring (OLM) method evaluates instrument channel performance by assessing its consistency with other plant indications through parametric or non-parametric models. The heart of an OLM system is the model giving an estimate of the true process parameter value against individual measurements. This model gives process parameter estimate calculated as a function of other plant measurements which can be used to identify small sensor drifts that would require the sensor to be manually calibrated or replaced. This paper describes an improvement of auto-associative kernel regression by introducing a correlation coefficient weighting on kernel distances. The prediction performance of the developed method is compared with conventional auto-associative kernel regression.