가설 검증과 칼만 필터를 이용한 격추평가 기법 연구

김호정,이동관,Kim, Ho-Jeong,Lee, Dong-Gwan 한국군사과학기술학회 2006 한국군사과학기술학회지 Vol.9 No.4

The correct and opportune decision of reengaging the intercepted target is required in order to enhance the engagement performance of the surface to air missile systems that has the ability to defense or attack against various targets at the same time. The engagement efficiency and success of these systems will be largely enhanced by assigning quickly its system resources to the intercepted target and minimizing the waste of system resources for the target which is not able to attack any more. The kill-assessment algorithm has to be able to evaluate automatically whether various targets intercepted by missiles are killed or not on the basis of the reasonable confidence level. The definition of kill assessment is discussed and the kill assessment algorithm is designed reliably by using Kalman filter and a probability theory. Finally its performance is evaluated and analyzed by the Monte Carlo simulation.

단국대학교의 사례

김호정,Kim, Ho Jeong 한국교육시설학회 2020 교육시설 Vol.27 No.5

PAN/PAAm 및 PAN/Copolymer(poly(AAm-co-AN)) 블렌드 섬유의 동적 점탄성 및 수축거동에 관한 연구

김호정,박차절,김한도,Kim, Ho-Jeong,Park, Cha-Jeol,Kim, Han-Do 한국섬유공학회 1994 한국섬유공학회지 Vol.31 No.9

Polyacrylonitrile(PAN)/polyacrylamide(PAAm) and PAN/copolymer(poly(AAm-co-AN)) blend fibers were prepared by solution spinning using nitric acid as a solvent. and stretched to 3, 5 and 7 of draw ratio. The effects of blend ratio and draw ratio on the viscoelastic and shrinking behavior of the fibers were investigated. The peak position of tan § related to Tg of PAH/copolymer fiber shifred towards higher temperature as the content of AN in AAm/AN composition of the copolymer is increased, while the tan 6-peak position of PAn/PAAm fiber has the same as that of pure PAN. The tan 6-peak temperature of PAN/topolymer fiber shifted to lower temperature with increasing draw ratio. The shrinkage of pure PAU, PAM/PAAm and PAN/copolymer fibers increased with increasing heat treating temperature and AN content in copolymers. but decreased with the increment of the draw ratio. It was concluded that the miscibility of the copolymer with PAN is better than that of PAAm and increased with increasing AW content of copolymer.

DEVS형식론을 적응한 HLA기반의 분산 실시간 시뮬레이션 시스템 개발

김호정,이재현,조길석,Kim, Ho-Jeong,Lee, Jae-Hyun,Cho, Kil-Seok 한국군사과학기술학회 2006 한국군사과학기술학회지 Vol.9 No.3

Weapon systems composed of several subsystems execute various engagement missions in distributed combat environments in cooperation with a large number of subordinate/adjacent weapon systems as well as higher echelons through tactical data links. Such distributed weapon systems require distributed real-time simulation test beds to integrate and test their operational software, analyze their performance and effects of cooperated engagement, and validate their requirement specifications. These demands present significant challenges in terms of real-time constraints, time synchronization, complexity and development cost of an engagement simulation test bed, thus necessitate the use of high-performance distributed real-time simulation architectures, and modeling and simulation techniques. In this paper, in order to meet these demands, we presented a distributed real-time simulation system based on High Level Architecture(HLA) and Discrete Event System Specification(DEVS). We validated its performance by using it as a test bed for developing the Engagement Control System(ECS) of a surface-to-air missile system. The proposed technique can be employed to design a prototype or model of engagement-level distributed real-time simulation systems.

국내 설계·시공 일괄계약에서의 설계 책임 리스크 할당방식에 관한 연구

김호정(Kim Ho-Jeong) 대한건축학회 2012 대한건축학회논문집 Vol.28 No.2

Over the last fifteen years, the number of public sector Design-Build projects has increased dramatically in South Korea. The primary method of public sector project delivery has traditionally been design-bid-build delivery. In the late 1990s, the government began to experiment with design-build project delivery, which combines both design and construction services with a single entity in one contract. The design-build contracting fundamentally alters the relationships, obligations and rights of the contracting parties. In order to take full advantage of the benefits derived from a single-point responsibility in Design-Build projects, the reasonable contractual risk allocation unique to design-build projects is very important. This paper presents a comparative study, which reviews the unique design liability issues and risk allocation in Design-Build projects in South Korea. The current contract practices of design-build projects in public sector are extensively analyzed to address the legal issues of design professional’s standard of care, performance warranties, entitlement to change orders, working relationship and loyalties among the parties, and limitations of design liability.

발생 15기(카네기 발생기) 배자

김호정(Kim Ho Jeong),구철희(Koo Chul Hoe),박형우(Park Hyoung Woo) 대한체질인류학회 1991 대한체질인류학회지 Vol.4 No.2

저자들은 카네기 발생 15기에 속하는 배자 4예를 보고한다. 배자들은 머리둔부길이가 7.33~8.7mm 이였으며, 사진촬영, 복사 및 컴퓨터를 이용한 재구성 모형 및 영상으로 분석하였다. 이 배자들은 외형상 닫혀 있는 수정체소포, 얕게 관찰하는 코오목, 제2아가미궁에 형성되는 최복측분절 및 원시수판의 형성 등이 특징이 였다. 조직관찰에서는 분명한 장관고리 및 맹장의 출현, 뚜렷하게 관찰되는 비뇨직장중격, 특징적으로 90˚정도 회전되어 있으며 문맥의 복측벽 이상으로는 뻗어 있지 않은 복측 췌장, 페엽기관지의 출현, 요관싹의 끝 부분이 팽대되어 형성된 원시신장깔대기, 대뇌 원기의 출현 등이 특징이 였다.

디자인빌드(Design-Build)와 턴키(Turnkey) 계약의 법률적 쟁점과 리스크 할당방식에 관한 이론적 연구

김호정(Kim Ho-Jeong) 대한건축학회 2010 대한건축학회논문집 Vol.26 No.8

Design-Build and Turnkey methods of project delivery places the duty to design and construction solely on the single entity contractor. The contractual relationships, obligations and rights of the contracting parties on Design-Build and Turnkey project delivery method based on single-point responsibility are very different from the traditional Design-Bid-Build project delivery method. This paper presents a theoretical study, which reviews the unique legal issues and risk allocation in Design-Build and Turnkey basis projects through analyzing the model forms of Design-Bid-Build, Design-Build and Turnkey contract documents published by professional associations of AIA, DBIA and FIDIC. Thus, this paper is intended to assist contracting parties in establishing resonable contracts to appropriately allocate contractual risks.

지방자치단체에 대한 국가의 감독과 통제

김호정 ( Kim Ho-jeong ) 한국외국어대학교 법학연구소 2009 외법논집 Vol.33 No.2

Administration of local governments can be approved within the scope of a national legal system. Therefore, a violation of the national legal system by a local government has to be controlled under the supervision of the central government. The supervision or control of the central government are required for many reasons. For example, it is needed to make up for the weak points in current internal audit systems of local governments. The issue of this paper is related to the two points, the target and the limit of the supervision or control of the central government. Firstly, there is one question on the possibility of the central government's control to an administration of a local government pursuant to the purpose of laws without any specific provision. The Local Autonomy Act provided that the central government and local governments basically associate on an equal footing. It also provides that the Minister of Public Administration and Security, Provincial Governors and Metropolitan City Mayors may audit, revoke or suspend the autonomous affairs in cases where a local government violates any provisions of laws. In practice, however, the central government sometimes tries to involve in administrations of local governments without the considerations of the violations. Therefore, the target of the supervision must be specified by the provisions of laws. Secondly, there is another issue of this paper on the right and the limit of the supervision to local governments. Even if the central government may have the rights, the requirements should be limited to the minimum scope. The limitation can be made by the provisions of the related laws. Furthermore, it is needed to make sure a principle regarding the limitations. For example, the supervision or control of the central government should be done after the self-inspection of local governments.

중국 행정배상제도의 법률적 특색에 관한 약간의 고찰

김호정 ( Kim Ho-jeong ) 한국외국어대학교 법학연구소 2008 외법논집 Vol.31 No.-

Even though the administrative reparation is a part of the administrative remedy system founded upon the ‘rule of law’, the administrative reparation system of China is similar to that of the Republic of Korea, but it also has distinctive Socialist features. Firstly, the Chinese administrative reparation system holds that the government is responsible for its acts only when it is unlawful (referred to as ‘responsibility of unlawfulness principle’). However, it has some exceptions, such as when government acts are based on the rule of law but is unjustified. These exceptions reflect the socialist legal system that regards the speedy resolution of the victim’s complaints to government acts and the minimization of social contradiction as the preservation of public order. Secondly, the Chinese State Tort Liability Act prescribes the detailed categories of unlawful acts of citizens, corporations and other organizations that infringe upon personal liberty and property rights, whereas the Korean administrative reparation law has brief regulations of unlawful acts. Yet, the Chinese State Tort Liability Act has an article defining unlawful government acts as ‘other acts’. Thus, the articles describing the unlawful acts are considered an instance clause. Hence, the clauses guiding the unlawful acts of both countries are similar. Thirdly, the Chinese State Tort Liability Act recommends that the administrative machinery or its agent shall be responsible for providing remedies and the administrative machinery and/or the defendant of the state tort liability action be liable for damages. By contrast, the Korean State Tort Liability Act, distinguishing administrative authorities from administrative machinery, rules that the state or the local autonomous entity, that is, the administrative authority, shall be the defendant of the state tort liability suit. Lastly, the most striking features of the Chinese administrative reparation system is when filing a lawsuit under the State Tort Liability Act, where the victim goes though the preliminary process held by the responsible administrative machinery and then claim damages after the confirmation of unlawful administrative acts. Under the Korean administrative reparation system, anyone who claims damages can file a suit without going through this preliminary process because the court will decide on the unlawful acts and order reparations. These two features stand in sharp contrast between the two countries. Article I, section 96 of the Korean State Tort Liability Act establishes that the extinctive prescription period for state liability claim is three years from when a claimant is aware of damage and a wrongdoer, or otherwise five years according to the article 1, section 96 of State Financial Act. In contrast, the Chinese State Tort Liability Act dictates that a plaintiff can claim damages within two years of when he is aware of unlawful government acts. This short extinctive prescription period can be construed as a reflection of the Socialist legal system. In addition, the Chinese State Tort Liability Act directs that the mediation process (Tiáo Jiě) can be used as a means to end the state liability litigation.

역감 제시 장치를 이용한 가장 과학 체험 공간 개발

김호정(Ho-Jeong Kim),류제하(Jeha Ryu) 한국정보과학회 2003 정보과학회논문지 : 소프트웨어 및 응용 Vol.30 No.11·12

본 논문에서는 과학 교육 분야에서 기존의 교육방식이 갖고 있는 한계성을 극복하고 교육 및 학습 효과를 향상시키기 위한 방안으로 역감 제시 장치를 이용한 가상 현실 시스템을 제안한다. 제안된 시스템의 효용성과 용용가능성, 활용방법을 효과적으로 나타낼 수 있는 4가지 과학세계로 구성된 가상 과학 체험 공간을 구축하여 미시 세계에서는 원자간의 현상을, 마찰 세계에서는 스틱-슬립 마찰현상을, 기전 세계에서는 모터 및 발전기의 원리를, 거시 세계에서는 코리올리스 가속도로 인한 물리적 현상을 각 세계에서 역학적으로 모델링하고 역감 제시 장치와 인터페이스를 위한 에뮬레이션 기법을 고안한다. 그리고, 역감 제시 장치, HMD(Head Mounted Displays), 가상환경(스테레오 그래픽스와 GUI)을 포함한 디지털 제어기로 구성된 가상 과학 체험 시스템을 구축한다. 끝으로 본 연구를 통해 교육의 보조 매체와 학습의 도구로서 효율성을 극대화시키기 위한 가상 과학 체험 공간의 설계 및 구현에 관한 고려사항을 제시한다. A virtual science experience space(VSES) using virtual reality technology including haptic device is proposed to overcome limits which the existing science education has and to improve the effect of it. Four example scientific worlds such as Micro World, Friction World, Electromechanical World and Macro World are demonstrated by the developed VSES. Van der Waals forces in Micro World and Stick-Slip friction in Friction World, the principle of induction motor and power generator in Electromechanical World and Corialis acceleration that is brought about by relative motion on the rotating coordinate are modeled mathematically based on physical principles. Emulation methods for haptic interface are suggested. The proposed VSES consists of haptic device HMD or Crystal Eyes and a digital computer with stereoscopic graphics and GUI. The proposed system is believed to increase the realism and immersion for user.