맥동계내에 물질전달이 있을때의 무차원군

이원국 한국화학공학회 1975 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.13 No.1

振動, 脈流 및 音波作用 等의 脈動을 工程內에 導入하여 物質傳達率을 增進시키려고 할 때의 系內의 特性을 分析하기 위하여 考慮해야할 主要한 無次元數에 對해서 考察하였다. 脈動系內에서 物質傳達現象이 일어날 때에는 系全體가 亂流가 아닐 때도 極部的으로 振動物體의 境界近處에서 亂擴散이 일어남을 推論할 수 있으며, 이때의 亂擴散係數는 a²f에 比例하고, 振動體의 狀態가 單一 vibrational mode 일때는 a²f/vD가 重要하며, combined mode일 때는 afD/μ가, 또 crowded bubble system 에서는 ρ(af)²l/σ가 重要함을 次元解析과 實驗結果에서 確認하였다. Important dimensionless groups were investigated to find basic experimental correlations in vibrating systems. When mass transfer occurred in the system, it was deduced that eddy diffusion took place locally near the vibrating bodies without having turbulent flow in the whole system. The eddy diffusivity in the system turned out to be proportional to the factor, a²f. For a system in a single vibrational mode, a²f/vD was a very important dimensionless group. For a combined vibrational mode system, ρafD/μ, and for a crowded bubble system ρ(af)²l/σ became important. These conclusions were confirmed both by dimensional analysis and by experimental results.

리더의 감성리더십이 부하의 사기에 미치는 영향에 관한 연구

이원국 경인행정학회 2016 한국정책연구 Vol.16 No.2

본 연구에서는 ‘감성리더십이 부하의 사기에 어떠한 영향을 미치는가’에 대하여 軍 조직을 중심으로 확인하였다. 이러한 리더의 감성리더십의 영향력을 확인하기 위하여 양적연구방법을 적용하였으며, 경 기도 지역의 육군 전투부대를 대상으로 하여 설문조사를 실시하였다. 설문조사의 결과분석을 통하여 리 더의 감성리더십이 부하의 사기에 정(+)의 영향을 미친다는 것을 확인하였으며, 본 연구 결과 감성리더 십의 구성요소 중 자기인식능력, 자기관리능력, 사회적-관계능력은 부하들의 사기에 정(+)의 영향을 미 치는 것으로 분석되었다. 즉 부하들은 자신의 리더가 감정을 이해하고 다스릴 줄 알며, 능력을 파악하고 이를 활용하여 새로운 기회를 잡기위해 노력하고, 부하들에게 비젼을 제시하여 이를 위해 부하들이 도 전할 수 있도록 이끌고 동기부여를 시킨다고 인식할수록 부하들은 자신의 능력에 대한 확신과 자신감이 높아진다고 할 수 있다. 리더는 조직구성원들의 갈등문제를 해결하고 좋은 인간관계 유지를 통해 팀워 크를 이끌어 냄으로써 부하들의 사기를 높일 수 있을 것이다. 이러한 연구결과는 감성리더십이 기존의 상명하복을 강조하던 리더십을 대체할 수 있는 새로운 리더십의 유형이 될 수 있음을 증명하는 결과이 며, 단순히 대체 뿐 만 아니라 사기진작 측면에서 오히려 도움을 주는 것으로 나타났다.

연구발표논문초록 : 맥동계내에 (脈動系內) 물질전달이 있을때의 무차원수 (無次元數)

이원국 한국화학공학회 1974 추계총회초록집 Vol.- No.-

公州地域의 比抵抗探査 및 解析

李元國 공주대학교 사범대학 과학교육연구소 1979 과학교육연구 Vol.11 No.1

The resistivity survey of Kong-Ju area is applied for water exploration, depth-bedrock determinations, sand and gravel exploration, etc. In this area, along the Geum river, the vast alluvium deposits and gently sloped hills and valleys of from late mature stage to early old stage are developed. The rocks exposed in this area are banded gnesis, migmatic gneiss, mica schist, porphyroclastic gneissose granite, Kyeongsang system and andesitic rocks etc. The alluvium layer is comparatively thick. Ground water resources are developed plentifully in the allutivial planes of the Geum river basin. The main ground water is the free ground water contained in the alluvium deposits of the Geum river basin.

컴퓨터를 이용한 청각적 인식거리의 단축에 의한 영어 청해능력 향상을 위한 CALL 패키지 : by shortening the audio perceptual distance

이원국 신한영미어문학회 1997 새한영어영문학 Vol.37 No.-

Speech communication is composed of two processes, uttering speech and listening comprehension. Comprehension in speech communication involves understanding the speech through its acoustic clues, that is achieving on-line understanding by drawing a mental representation from the hearer's stored memory, which corresponds to the audio perceptual representation, that is, acoustic clues which he gets among the speaker's momentary speech. Non-native speakers' short-term memory span may be much shorter in understanding English utterances, which makes speech sounds and their meaning discrete. Furthermore, Korean EFL students learn written English in letters, which makes it very difficult to draw audio mental representation by the stimuli of the acoustic clues from real speech. These are assumed to be responsible for their longer perceptual distance. Shortening the perceptual distance will cure their poor listening comprehension of English speech. In this study, I have suggested a CALL package which contains various effective ways of doing massed or spaced repetition tasks which promote shortening of the audio preceptual distance and lengthening of listening units. I am confident that this package will contribute to the production of Korean EFL students who have 'i(telligibility)+1' listening comprehension.

컴퓨터를 이용한 청각적 인식거리의 단축을 통한 영어 청해능력 향상 방안에 관한 연구 : by shortening the auditory perceptual distance

李元國 釜山大學校 1997 人文論叢 Vol.50 No.1

Speech communication is composed of two processes, speech uttering and listening comprehension. Comprehension in speech communication involves understanding the speech through its acoustic clues, that is achieving on-line understanding by drawing a mental representation from the hearer's stored memory, which corresponds to the auditory perceptual representation that is, acoustic clues which he gets from the stream the speaker's momentary speech. Non-native speakers' short-term memory span may be much shorter in understanding English utterances, which makes speech sounds and their meaning discrete. Furthermore, Korean EFL students learn written English in letters, which makes it very difficult for them to draw auditory mental representation by the stimuli of the acoustic clues from real speech. These are assumed to be responsible for their longer perceptual distance. Shortening the perceptual distance will cure their poor listening comprehension of English speech. In this study, I have suggested a CALL package which contains various effective ways of doing massed or spaced repetition tasks which promote shortening of the auditory perceptual distance and lengthening of listening units. I am confident that this package will contribute to the production of Korean EFL students who have 'I(intelligibility) + 1' listening comprehension.

地層探査를 爲한 比抵抗法의 解釋에 關한 硏究

李元國 공주대학교 사범대학 과학교육연구소 1977 과학교육연구 Vol.9 No.1

The electrical resistivity method of subsurface survey has great value in several fields; geology, water supply, civil engineering, construction and others. as a axample measurement, electncal survey was finished on Kong Ju, Keum River area. (Table 6). These resulte of measurement descnibe curves shown by solid lines in Fig. 9. Trose these values the ground is estimated to have the structure As illus rated ratedin Fig. 10.

입자충전층의 유효열전도도

이원국,황보한 한국화학공학회 1966 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.4 No.3

Using some simplified models, the effective thermal conductivity of two phase media is expressed as a series-parallel combination of the individual solid and gas conductivity. The contact point conductivity of a packed bed of sphere is presented as a function of the sphere diameter and the fraction of parallel conduction of the void is calculated as a function of porosity of the bed. An attempt was also made to account for the contribution of the contact point conductivities with electrical analog measurements.

영어 공손의 거리 : 근접과 격원 Proximating and Distancing

이원국 새한영어영문학회 2005 새한영어영문학 Vol.47 No.2

This study is to explain politeness as a creative property which emerges from interactive linguistic communication. Politeness is not inherent in linguistic expression but in talk, and emerges through interaction of the co-participants. In order to explain emergence of politeness, we are required to assume an improved concept of politeness which is based on the contradictory concepts of 'independence' and 'sharing', and the co-constituting model of communication. Independence and sharing between interactants is realized as 'proximating' and 'distancing' which, in turn, is visible for distance in linguistic expressions. The speaker's proximal attitudes imply both intimacy and aggression of independence, while his or her distal attitudes respect of independence and avoidance of sharing at the same time. The contradictoriness of the concepts constitutes a dialectics and bring about changes through conflicts, which can explain human creative language use, variability of politeness, and the dynamics of social reality concerned with politeness. The interactants assess politeness of speakers by the distance which his or her utterances indicate. Correspondence between the speaker's expressed and hearer's expected distance is evaluated 'polite', while a big disparity between them 'impolite'. Distance in linguistic expression is determined by three factors, P(hierarchical distance), D(horizontal distance), and R(weight of imposition). All of them constitute politeness distance, while two of them, P and D are projected into deferential distance. Therefore, the Korean English speakers should understand English deference or politeness in terms of distance, since their cognitive faculty is structured by Korean grammatical structure with deference system.

炭酸鹽 鑛物과 長石의 着色方法

李元國 공주대학교 사범대학 과학교육연구소 1976 과학교육연구 Vol.8 No.1

Many stains have been developed to identify carbonate minerals and feldaspar. Alizarin red's is the most effective stain for calcite, from which the dolomitization or dedolomitization of carbonate rocks can be distinguished. by the length of the staining time, the composition of carbonates can be known.