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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,유재관,김종원,신영준,김경수,김수현 제어·로봇·시스템학회 2016 International Journal of Control, Automation, and Vol.14 No.5
In this paper, a modular gripper is newly designed for explosive ordnance disposal manipulators. Fordelicate and powerful grasp, the modular gripper is designed based on modified dual-mode twisting actuation. Thedual-mode twisting actuation is a kind of transmission mechanism which generates high speed and large actuatingforce depending on the operation modes. For maximizing the output force in limited conditions, several designparameters are defined and analyzed. Furthermore, experiments are performed to verify high performance of thedeveloped gripper.
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.
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.
이호주,김영대,Lee Ho-Joo,Kim Yeong-Dae The Korea Institute of Military Science and Techno 2004 한국군사과학기술학회지 Vol.7 No.3
This paper focuses on a scheduling problem of military training. Repetitive and identical training over multiple serials is a common type of military education. A simple but systematic method is suggested to determine a training schedule for small groups divided from each serial. A satisfactory training schedule and the number of such small groups can be determined by iteratively solving assignment problems with additional constraints. With this method, loads of instructors can also be balanced without violating constraints associated with precedence and continuity relationships among lectures.
이호주,김창근,강성수,Lee, Ho-Joo,Kim, Chang-Geun,Kang, Sung-Su 한국정보통신학회 2011 한국정보통신학회논문지 Vol.15 No.4
본 논문은 삼차원 공간에서 방향정보를 이용하여 위치측정을 위한 방향탐지장비의 최적배치 방법을 제시한다. 방향탐지장비는 전파를 발신하는 적의 위치를 탐지하는 장비로써 현재 육군에서 전력화되어 운용 중에 있다. 위치측정을 위해서는 두 대 이상의 장비를 동시에 운용해야 한다. 만일 한 대 이상의 장비를 공중에서 운용할 경우, 보다 나은 장비배치 형상을 이룸으로써 위치측정 정확도를 향상시킬 수 있다. 제안된 방법에서는 이차원 위치측정 알고리즘을 비선형계획법을 활용하여 삼차원으로 확장하고 수리적으로 그 해를 구하였다. 삼차원 위치측정 알고리즘을 토대로 시뮬레이션 기법과 탐색 기법을 융합한 최적배치 알고리즘을 고안하였다. 실험을 통하여 제안된 최적배치 방법은 적이 존재하는 지역에 대한 위치측정 정확도를 향상시킴으로써 방향탐지장비의 운용효과를 증대시킬 수 있음을 확인하였다. In this paper, a simulation-based method is presented to dispose direction finders in three dimensional space for locating targets using the directional data. A direction finder(DF) is a military weapon that is used to find locations of targets that emit radio frequencies by operating two or more DFs simultaneously. If one or more DFs are operated in the air, the accuracy of location estimation can be enhanced by disposing them in a better configuration. By extending the line method, which is a well-known algorithm for 2-D location estimation, into 3-D space, the problem of 3-D location estimation is defined as an nonlinear programming form and solved analytically. Then the optimal disposition of DFs is considered with the presented method in which methods of simulation and search technique are combined. With the suggested algorithm for 3-D disposition of DFs, regions in which targets exist can be effectively covered so that the operation effect of DF be increased.