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- 저자 : Jun Wan Im (검색결과 84 건)
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新入生 意識構造의 調査를 기초로 한 學生 生活의 새로운 指導方法
최완식,전창수,윤정임 한국항공대학교 1993 論文集 Vol.31 No.-
이 硏究는 1992학년도의 한국항공대학교 신입생 의식구조의 조사를 토대로 한 새로운 학생생활지도 방안을 設定하기 위해서 마련된 것이다. 특히 이 연구의 진행과정에서는 최근 東北아시아의 국제정치 및 경제사정등의 극적인 變化가 학생생활에 미치는 영향 도 깊이 고려하였다. 뿐만 아니라 지난 오랜동안 한국항공대학교가 위치한 이 캠퍼스지역에 가로놓인 많은 어려운 장애 물과 악조건들이 학생들의 학습활동이나 연구생활에 미치는 악영향등도 충분히 유의하였다. 이 硏究의 두번째 목적은 무엇보다도 학생들의 進路지도를 적극 강화하고 보완하는 방안이 생활의 勉學분위기를 조성 하고 활기찬 학습 및 연구생활에 더욱 크게 이바지 하게 될 것이라는 점을 크게 유념하였다. This study is to eatablish "New Directions of Guidance for Students Life on the Basis of Research into Freshmen's Way of Thinking(1992)" in Hankuk Aviation University. In the process of this research, Particularly, we have deeply considered into the great influence upon the students life from the recent dramatic change of international polities and economic circumstances of Northeastern Asian countries. On the other hand, we have kept in mind very difficult conditions and circumstances laid in this campus area which have greatly influenced upon the very hard and inconvenient studing life of students for a long time past. The second objective of this research is to study of New Directions of Guidance for Making New job of Graduates and future new plan for variable social life after graduation. We believe such methods of New Guidance will remarkably devote on the effective and industrious studing life of students of Hankuk Avation University.
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金昞逸,任俊赫,柳完圭 명지대학교 산업기술연구소 2005 産業技術硏究所論文集 Vol.24 No.-
Various researches have been undertaken to develop a new soil improvement method which can replace sand compaction pile(SCP) due to an increase of sand cost. Pack pile is one of the new methods reinforced by pack material such as geotextiles. In this study, a series of triaxial compression tests are carried out to find out shear strength characteristics of sand with and without pack. Total 6 different types of geotextile are selected for pack material. Based on the test results, stiffness of pack increases the strength of sand considerably.
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Wan-Seok Oh,Young-Sun Im,Kyu-Young Yeon,Young-Jun Yoon,김정완 한국미생물학회 2007 The journal of microbiology Vol.45 No.4
In this study, the effects of phosphate concentration and carbon source on the patterns of alkaline phosphatase (APase) and phospholipase (PLase) expression in Vibrio vulnificus ATCC 29307 were assessed under various conditions. The activities of these enzymes were repressed by excess phosphate (4 mM) in the culture medium, but this repression was reversed upon the onset of phosphate starvation in low phosphate defined medium (LPDM) containing 0.2 mM of phosphate at approximately the end of the exponential growth phase. The expressions of the two enzymes were also influenced by different carbon sources, including glucose, fructose, maltose, glycerol, and sodium acetate at different levels. The APase activity was derepressed most profoundly in LPDM containing fructose as a sole carbon source. However, the repression/derepression of the enzyme by phosphate was not observed in media containing glycerol or sodium acetate. In LPDM-glycerol or sodium acetate, the growth rate was quite low. The highest levels of PLase activity were detected in LPDMsodium acetate, followed by LPDM-fructose. PLase was not fully repressed by high phosphate concentrations when sodium acetate was utilized as the sole carbon source. These results showed that multiple regulatory systems, including the phosphate regulon, may perform a function in the expression of both or either APase and PLC, in the broader context of the survival of V. vulnificus. In this study, the effects of phosphate concentration and carbon source on the patterns of alkaline phosphatase (APase) and phospholipase (PLase) expression in Vibrio vulnificus ATCC 29307 were assessed under various conditions. The activities of these enzymes were repressed by excess phosphate (4 mM) in the culture medium, but this repression was reversed upon the onset of phosphate starvation in low phosphate defined medium (LPDM) containing 0.2 mM of phosphate at approximately the end of the exponential growth phase. The expressions of the two enzymes were also influenced by different carbon sources, including glucose, fructose, maltose, glycerol, and sodium acetate at different levels. The APase activity was derepressed most profoundly in LPDM containing fructose as a sole carbon source. However, the repression/derepression of the enzyme by phosphate was not observed in media containing glycerol or sodium acetate. In LPDM-glycerol or sodium acetate, the growth rate was quite low. The highest levels of PLase activity were detected in LPDMsodium acetate, followed by LPDM-fructose. PLase was not fully repressed by high phosphate concentrations when sodium acetate was utilized as the sole carbon source. These results showed that multiple regulatory systems, including the phosphate regulon, may perform a function in the expression of both or either APase and PLC, in the broader context of the survival of V. vulnificus.
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다대다 대응 위협평가 및 무기할당 알고리즘 연구 : 탄도미사일 및 장사정포 위협을 중심으로
임준성(Jun Sung Im),유병천(Byeong Chun Yoo),김주현(Ju Hyun Kim),최봉완(Bong Wan Choi) 한국산업경영시스템학회 2021 한국산업경영시스템학회지 Vol.44 No.4
In weapon assignment studies to defend against threats such as ballistic missiles and long range artillery, threat assessment was partially lacking in analysis of various threat attributes, and considering the threat characteristics of warheads, which are difficult to judge in the early flight stages, it is very important to apply more reliable optimal solutions than approximate solution using LP model, Meta heuristics Genetic Algorithm, Tabu search and Particle swarm optimization etc. Our studies suggest Generic Rule based threat evaluation and weapon assignment algorithm in the basis of various attributes of threats. First job of studies analyzes information on Various attributes such as the type of target, Flight trajectory and flight time, range and intercept altitude of the intercept system, etc. Second job of studies propose Rule based threat evaluation and weapon assignment algorithm were applied to obtain a more reliable solution by reflection the importance of the interception system. It analyzes ballistic missiles and long-range artillery was assigned to multiple intercept system by real time threat assessment reflecting various threat information. The results of this study are provided reliable solution for Weapon Assignment problem as well as considered to be applicable to establishing a missile and long range artillery defense system.
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이준행(Jun Haeng Lee),이대희(Dae Hee Lee),임영석(Young Suk Im),한철주(Chul Ju Han),정현채(Hyun Chae Jung),송인성(In Sung Song),최규완(Kyoo Wan Choi),김정룡(Chung Yong Kim),김상준(Sang Joon Kim),정진옥(Jin Wook Chung),박재형(Jae Hyung 대한내과학회 1996 대한내과학회지 Vol.51 No.2
The celiac artery compression syndrome is a rare disease defind as compression of the celiac artery by extraluminal structures resulting in abdominal pain. Typical features are intermittent abdominal pain, epigastric bruits, an angiographic evidence of the extrinsic compression of the celiac axis, and a symptomatic improvement after surgical release of the compression. The most common etiology of this syndrome is the compression of the celiac axis by the median arcuate ligament. A 19-year-old man presented with intermittent epigastric pains and the cause of the symptoms could not be found after multiple initial work-ups. Aortography which followed the initial work-ups, however, demonstrated a significant narrowing at the origin of the celiac artery. After surgical release of the celiac axis from the compressing medican arcuate ligament, the patient no longer experienced the abdominal pains. We concluced that this was a classical case of the celiac artery compression syndrome.
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Won Jun Ahn,Byeong Hyeon Park,Sang Wan Seo,Seok Kim,Ji Sun Im 한국탄소학회 2023 Carbon Letters Vol.33 No.7
The complexation of silicon with carbon materials is considered an effective method for using silicon as an anode material for lithium-ion batteries. In the present study, carbon frameworks with a 3D porous structure were fabricated using metal–organic frameworks (MOFs), which have been drawing significant attention as a promising material in a wide range of applications. Subsequently, the fabricated carbon frameworks were subjected to CVD to obtain silicon-carbon complexes. These siliconcarbon complexes with a 3D porous structure exhibited excellent rate capability because they provided sufficient paths for Li-ion diffusion while facilitating contact with the electrolyte. In addition, unoccupied space within the silicon complex, combined with the stable structure of the carbon framework, allowed the volume expansion of silicon and the resultant stress to be more effectively accommodated, thereby reducing electrode expansion. The major findings of the present study demonstrate the applicability of MOF-based carbon frameworks as a material for silicon complex anodes.
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Lysobacter koreensis sp. nov., isolated from a ginseng field.
Lee, Jun Won,Im, Wan-Taek,Kim, Myung Kyum,Yang, Deok-Chun Society for General Microbiology 2006 International journal of systematic and evolutiona Vol.56 No.1
<P>Strain Dae16T, a Gram-negative, non-spore-forming, rod-shaped bacterium, was isolated from the soil of a ginseng field in South Korea and characterized in order to determine its taxonomic position. 16S rRNA gene sequence analysis revealed that strain Dae16T belongs to the Gammaproteobacteria and had the highest degree of sequence similarity to Lysobacter gummosus ATCC 29489T (97.1 %), Lysobacter antibioticus DSM 2044T (96.6 %), Lysobacter enzymogenes DSM 2043T (96.2 %), Lysobacter concretionis KCTC 12205T (94.7 %) and Lysobacter brunescens ATCC 29482T (93.7 %). Chemotaxonomic data revealed that strain Dae16T possesses a quinone system with Q-8 as the predominant compound and C(15 : 0) iso, C(16 : 0) iso and C(17 : 1) iso omega9c as the predominant iso-branched fatty acids, all of which corroborated the assignment of the strain to the genus Lysobacter. Results of DNA-DNA hybridization and physiological and biochemical tests clearly demonstrated that strain Dae16T represents a distinct species. Based on these data, it is proposed that Dae16T (= KCTC 12204T = NBRC 101156T) should be classified as the type strain of a novel Lysobacter species, Lysobacter koreensis sp. nov.</P>
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