The research contributes extending and reviewing of restricted (constrained) and unrestricted (unconstrained) models in GLM(Generalized Linear Models). The paper includes the methodology for finding EMS(Expected Mean Square) and F0 ratio. The results can be applied to the gauge R&R(Reproducibility and Repeatability) in MSA(Measurement System Analysis).

Petri Nets(PNs), as a graphical and mathematical tool, provide a uniform environment for modeling, formal analysis, and design of discrete event systems. The main objective of this paper is to model and analyze the manufacturing system using PNs as well as simulate the manufacturing system. The analysis method used in this paper is Embedded Markov Chain(EMC) method for Generalized Stochastic Petri nets(GSPN). The simulation tools used in this paper are Arena and Simnet V. 1.37. The results of three methods, EMC method, PNs simulation and Arena simulation, are obtained and compared.

The importance of the telecommunication industry is well recognized. However, few studies provide a systematic approach to measuring the competitiveness of this industry. In this paper, competitiveness and globalization indices are developed within the framework of the generalized double diamond model. These measures are calculated from the survey data of the evaluation of Korea`s telecommunication industry by foreign investors in Korea. Policy makers will find these two indices useful in formulating effective policies to enhance the competitiveness of the telecommunication industry.

본 연구는 복합하충을 받는 구조물에 있어서 구조물의 안정경계점을 계산하는 방법올 제시하고 있다. 여기 에서는 우선 안정경계점에 놓여 있는 기지의 점에 대한 선형해를 일반역행열을 이용하여 선형 증분 평형방정 식의 여해와 특이해의 선형결합으로 나타내였다. 다음으로 두개의 하중계수를 구속하는 선형조건을 도입하고， 그 구속조건하에서 하중계수 比가 일정하게 되도록 반복계산을 수행하므로써， 안정경계접위의 다음 목표점이 얻어진다. 얻어진 이 점을 초기점으로 이용한다. 평형경로를 추적할 때， 본래의 두 개의 하중계수 문제는 하 중계수의 比가 일정하다는 조건을 도입하여 단일 하중계수의 문제로 된다. 두 개의 예를 블어 수치해석을 행 하였으며， 얻어진 결과로부터 본 연구에서 채택된 방법은 구조물의 경계안정점을 찾는 문제에 적합하며 더욱 개발할 여지가 있음을 보여주고 있다.

한반도는 지형학적 요건으로 인하여 태풍과 관련된 재난이 매년 발생하여 막대한 피해를 유발하고 있다. 태풍 내습시 폭풍해일과 집중호우가 동시에 발생한다면 해안지역의 침수피해는 더욱 증가할 것으로 사료된다. 이러한 관점에서 태풍과 폭풍해일의 상호의존성을 정량적으로 규명하는 것은 해안지역의 재해분석에 필수적이다. 본 연구에서는 Bayesian 기법을 기반으로 절점기준을 초과하는 임계값의 초과확률을 산정하기 위하여 Poisson 분포와 Generalized-Pareto 분포를 이용한 Poisson-GP 폭풍해일 빈도해석 기법을 개발하였다. 본 연구를 통하여 개발된 Poisson-GP 폭풍해일 빈도해석 기법은 설계해수면의 불확실성을 정량적으로 제시하였으며 해안지역의 폭풍해일 관련 방재기술 향상에 기여할 것으로 판단된다.

Tendon driven robot mechanisms have many advantages such as allowing miniaturization and light-weight designs and/or enhancing flexibility in the design of structures. When designing or analyzing tendon driven mechanisms, it is important to determine how the tendons should be connected and whether the designed mechanism is easily controllable. Graph representation is useful to view and analyze such tendon driven mechanisms that are complicatedly interconnected between mechanical elements. In this paper, we propose a method of generalized graph representation that provides us with an intuitive analysis tool not only for tendon driven manipulators, but also various other kinds of mechanical systems which are combined with tendons. This method leads us to easily obtain structure matrix - which is the one of the most important steps in analyzing tendon driven mechanisms.

We present six-degree-of-freedom (6DoF) haptic rendering algorithms using translational (PDt) and generalized penetration depth (PDg). Our rendering algorithm can handle any type of object/object haptic interaction using penalty-based response and makes no assumption about the underlying geometry and topology. Moreover, our rendering algorithm can effectively deal with multiple contacts. Our penetration depth algorithms for PDt and PDg are based on a contact-space projection technique combined with iterative, local optimization on the contact-space. We circumvent the local minima problem, imposed by the local optimization, using motion coherence present in the haptic simulation. Our experimental results show that our methods can produce high-fidelity force feedback for general polygonal models consisting of tens of thousands of triangles at near-haptic rates, and are successfully integrated into an off-the-shelf 6DoF haptic device. We also discuss the benefits of using different formulations of penetration depth in the context of 6DoF haptics.

본 연구에서는 generalized logistic(GL) 분포의 최우도 추정량(maximum likelihood estimate)에 대한 불확실성 추정을 위하여 사용되는 관측정보행렬(observed information matrix)과 Fisher 정보행렬(Fisher information matrix)의 정확도를 비교해 보고자 하였다. 타 분포형에 대한 기존의 연구결과에서 표본의 크기가 클 경우 매개변수 추정시 관측정보행렬이 동시에 추정되어 계산시간

The purpose of this study is to analyze the determinants of the digital divide at individual level and regional level in Korea, considering interaction between individual and the regional variables. Following results are obtained. First, individual level digital devide in the 16 different regions has been found in terms of Internet use, implying the needs for further analysis on impact of the regional factor in individual Internet use. Second, the result finds the impact of level-l individual variables, "gender, age, education, income and jobs" on digital divide, significantly at level 10% level. Third, the regional variables influencing the individual digital divide were not found at state level. However, regional factors might affect digital devide at county level. Study suggest some plans to reduce digital divide. First, the digital devide at individual level should be remedied by focusing on neglected class of people. Second, we need to approach the digital divide by analyzing in more detail, reflecting interactions of the regional variables and individual variables. Third, we should come up with a policy for mending the digital divide at regional level.

본 연구는 토양내에서 투수량 계수가 연직방향으로 지수함수적으로 감소한다는 TOPMODEL의 기존 가정을 일반화시킨 투수량계수의 멱급수형 감소모형의 국내지형에 대한 적용성을 검토하였다. 유출모의는 위천 대표 시험 유역의 동곡 소유역(33.6km2)을 대상으로 50m 수치지형도(Digital Elevation Model : DEM)을 사용하였다. 임의의 매개변수 결정의 신뢰성을 확보하기위해 TOPMODEL 운영시 산정과정에 난수발생 알고리즘을 추가하여 변형