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.

팩강성이 모래의 강도에 미치는 영향

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.

Phosphate and Carbon Source Regulation of Alkaline Phosphatase and Phospholipase in Vibrio vulnificus

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.

Effect of Hydrolyzed Soybean Peptide against Oxidative Stress-induced Inflammatory Response and Extrinsic Apoptosis

Wan Heo,Kyung-Im Kim,Bok Kyung Han,Jiyoun Hong,Young Jun Kim 한국식품영양과학회 2022 한국식품영양과학회 학술대회발표집 Vol.2022 No.10

실내 특수공간의 지구자기장 교란에 관한 연구

임영준(Im Yeong Jun),임란(Imran Ashraf),허수정(Hur Soo Jung),박용완(Park Yong Wan) 한국통신학회 2019 한국통신학회 학술대회논문집 Vol.2019 No.1

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.

Designing of 3D porous silicon/carbon complex anode based on metal‑organic frameworks for lithium‑ion battery

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.

Phosphate and Carbon Source Regulation of Alkaline Phosphatase and Phospholipase in Vibrio vulnificus

Oh, Wan-Seok,Im, Young-Sun,Yeon, Kyu-Yong,Yoon, Young-Jun,Kim, Jung-Wan The Microbiological Society of Korea 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 LPDM-sodium 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.

국내 서식 지중 흰개미(Reticulitermes speratus)의 섭식 수종 및 선호도 평가

임익균 ( Im Ik-gyun ),구준모 ( Koo Jun-mo ),최재완 ( Choi Jae-wan ),조수원 ( Cho Soo-won ),한규성 ( Han Gyu-seong ) 한국목재공학회 2021 한국목재공학회 학술발표논문집 Vol.2021 No.1

청주시 소재 산림에서 채집한 흰개미의 가해 수종 및 선호도를 평가하였다. 채집된 흰개미의 COI 바코드 유전자를 기반으로 한 분자생물학적 종 동정 결과, 모두 지중 흰개미(Reticulitermes speratus)로 확인되었다. 또한 채집 당시 함께 수집된 가해 시료들의 수종 식별을 통해 수종을 파악한 결과, 산림에서 R. speratus는 소나무류, 잣나무류, 상수리나무류, 벚나무속 등 다양한 수종을 섭식하는 것으로 확인되었다. 이와 더불어 목조문화재 목부재로 사용된 주요 수종 9종을 대상으로 선호도를 평가한 결과, 낙엽송, 소나무, 잣나무 순으로 가장 높은 섭식률을 보였으며 밤나무에 대해 가장 낮은 것으로 확인되었다. 본 연구에 대한 결과는 향후 목조문화재 목부재에 대한 R. speratus의 유입 가능성 및 위험도 산출의 기초 자료로 제공하고자 한다.

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>