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재조합 플라스미드 pSC3 에 단리된 효모 유전자 hom3 의 염색체 통합에 관한 연구
이호주,이우영,최승일 한국유전학회 1990 Genes & Genomics Vol.12 No.1
Aspartokinase (EC 2.7.2.4) is encoded by the HOM3 gene, a putative clone of which was previously isolated on a recombinant plasmid pSC3 (15.5 kbp) by its hom3 complementing ability in the yeast (Choi and Lea, 1988). The complementing sequence was further localized to the 2.15 kbp BamHI-Bg1II fragment by subcloning it from the pSC3. A replicating vector YRp7 to yield the plasmid pSC35. In an attempt to yield the integrative plasmid pSC351, the EcoRI fragment containing ARS-TRP1 was removed from pSC35. Mitotically stable integrative transformants were stable integrative transformants were selected upon introducing the linearized pSC351 into the original yeast recipient strain and crossed with an appropriate yeast strain for tetrad analysis. As a result, the integrated pSC351 DNA was positioned to, the expected genetic distance of 3.9 cM from the HIS1 locus on the right arm of yeast chromosome V, indicating that the 2.15 kbp fragment in pSC35 contains the entire functional HOM3 gene of the yeast, Saccharomyces cerevisiae.
이호주 대한수학회 2020 대한수학회지 Vol.57 No.1
Using the complex parabolic rotations of holomorphic null curves in ${\mathbb{C}}^{4}$, we transform minimal surfaces in Euclidean space ${\mathbb{R}}^{3}$ to a family of degenerate minimal surfaces in Euclidean space ${\mathbb{R}}^{4}$. Applying our deformation to holomorphic null curves in ${\mathbb{C}}^{3}$ induced by helicoids in ${\mathbb{R}}^{3}$, we discover new minimal surfaces in ${\mathbb{R}}^{4}$ foliated by hyperbolas or straight lines. Applying our deformation to holomorphic null curves in ${\mathbb{C}}^{3}$ induced by catenoids in ${\mathbb{R}}^{3}$, we rediscover the Hoffman-Osserman catenoids in ${\mathbb{R}}^{4}$ foliated by ellipses or circles.
임무유형과 다중 격자지도 기반의 임무지향적 전역경로 생성 연구
이호주,이영일,이명천,Lee, Ho-Joo,Lee, Young-Il,Lee, Myung-Chun 한국군사과학기술학회 2010 한국군사과학기술학회지 Vol.13 No.2
In this paper, a global path generation method is suggested using multiple grid maps connected with the mission type of unmanned combat vehicle(UCV). In order to carry out a mission for UCV, it is essential to find a global path which is coincident with the characteristics of the mission. This can be done by considering various combat circumstances represented as grid maps such as velocity map, threat map and communication map. Cost functions of multiple grid maps are linearly combined and normalized to them simultaneously for the path generation. The proposed method is realized using $A^*$, a well known search algorithm, and cost functions are normalized in the ratio of the traverse time which is one of critical information should be provided with the operators using the velocity map. By the experiments, it is checked found global paths match with the mission type by reflecting input data of grid maps properly and the computation time is short enough to regenerate paths in real time as combat circumstances change.
User Interface for Unmanned Combat Vehicle Based on Mission Planning and Global Path Planning
이호주,이영일,박용운,Lee, Ho-Joo,Lee, Young-Il,Park, Yong-Woon The Korea Institute of Military Science and Techno 2009 한국군사과학기술학회지 Vol.12 No.6
In this paper, a new user interface for unmanned combat vehicle(UCV) is developed based on the mission planning and global path planning. In order to complete a tactical mission given to an UCV, it is essential to design an effective interface scheme between human and UCV considering changing combat environment and characteristics of the mission. The user interface is mainly composed of two parts, mission planning and global path planning, since they are important factors to accomplish combat missions. First of all, mission types of UCV are identified. Based on mission types, the concept of mission planning for UCVs is presented. Then a new method for global path planning is devised. It is capable of dealing with multiple grid maps to consider various combat factors so that paths suitable for the mission be generated. By combining these two, a user interface method is suggested. It is partially implemented in the Dog-horse Robot of ADD and its effectiveness is verified.
디지털지형정보 기반의 실시간 자율주행 격자지도 생성 연구
이호주,이영일,박용운,Lee, Ho-Joo,Lee, Young-Il,Park, Yong-Woon 한국군사과학기술학회 2011 한국군사과학기술학회지 Vol.14 No.4
In this paper, a method of generating path planning map is developed using digitalized geographic information such as FDB(Feature DataBase). FDB is widely used by the Army and needs to be applied to all weapon systems of newly developed. For the autonomous navigation of a robot, it is necessary to generate a path planning map by which a global path can be optimized. First, data included in FDB is analyzed in order to identify meaningful layers and attributes of which information can be used to generate the path planning map. Then for each of meaningful layers identified, a set of values of attributes in the layer is converted into the traverse cost using a matching table in which any combination of attribute values are matched into the corresponding traverse cost. For a certain region that is gridded, i.e., represented by a grid map, the traverse cost is extracted in a automatic manner for each gird of the region to generate the path planning map. Since multiple layers may be included in a single grid, an algorithm is developed to fusion several traverse costs. The proposed method is tested using a experimental program. Test results show that it can be a viable tool for generating the path planning map in real-time. The method can be used to generate other kinds of path planning maps using the digitalized geographic information as well.
단위임무 기반 로봇의 임무 계획 및 자동화 임무 관리 방법론
이호주,박원익,김도종,Lee, Ho-Joo,Park, Won-Ik,Kim, Do-Jong 한국군사과학기술학회 2014 한국군사과학기술학회지 Vol.17 No.1
In this paper, it is suggested a method of mission planning and management for robots based on the unit mission. In order to make robots execute given missions continuously as time goes by, a new concept for planning the mission which is composed of one or more unit missions and an automatic mission management scheme are developed. For managing robot's missions in real time, six management methods are devised as well in order to cope with the mismatches, which occur frequently during the mission execution, as to the initial plan. Without the operator's involvement, any mismatch can be adjusted automatically by applying one of the mission management methods. The suggested concept of mission planning and mission management methods based on the unit mission are partially realized in the Dog-Horse robot system and it is checked that it can be a viable one for developing effective robot operation systems.
A New Analytical Method for Location Estimation Using the Directional Data
이호주,김영대,박철순,Lee Ho-Joo,Kim Yeong-Dae,Park Cheol-Sun The Korea Institute of Military Science and Techno 2004 한국군사과학기술학회지 Vol.7 No.4
This paper presents a new analytical method for estimating the location of a target using directional data. Based on a nonlinear programming (NLP) problem formulated for the line method, which is a well known algorithm for two-dimensional location estimation, we present a method to find an optimal solution for the problem. Then we present a two-stage method for better location estimation based on the NLP problem. In addition, another two-stage method is presented for location estimation problems in which different types of observers are used to obtain directional data based on the analysis of the maximum likelihood estimate of the target location. The performance of the suggested method is evaluated through simulation experiments, and results show that the two-stage method is computationally efficient and highly accurate.
이호주 한국미생물학회 1990 微生物과 産業 Vol.16 No.1
이글은 강원대학교 생명과학연구소의 연혁과 기구및 연구인력, 연구시설, 연구소 활동상황,연구방향및 중장기발전계획에 대해 소개하였다.