• Communications for Statistical Applications and Methods
• /
• v.21 no.5
• /
• pp.435-444
• /
• 2014

The most widely used optimal bandwidth is known to minimize the mean integrated squared error(MISE) of a kernel density estimator from a true density. In this article proposes, we propose a bandwidth which asymptotically minimizes the mean integrated density power divergence(MIDPD) between a true density and a corresponding kernel density estimator. An approximated form of the mean integrated density power divergence is derived and a bandwidth is obtained as a product of minimization based on the approximated form. The resulting bandwidth resembles the optimal bandwidth by Parzen (1962), but it reflects the nature of a model density more than the existing optimal bandwidths. We have one more choice of an optimal bandwidth with a firm theoretical background; in addition, an empirical study we show that the bandwidth from the mean integrated density power divergence can produce a density estimator fitting a sample better than the bandwidth from the mean integrated squared error.

• Journal of The Korea Institute of Healthcare Architecture
• /
• v.15 no.3
• /
• pp.51-59
• /
• 2009

This study reviewed the background of the advent of and the concept of age-integrated facilities where elderly persons' facilities and children's facilities have been built in the same plot or building or established adjacent to each other. And also it examined the concept, necessity, effects, and kinds of intergenerational interactions. Ten age-integrated facilities in Japan, where it is reported that intergenerational interactions are now being implemented, were selected and visited for surveys. This study implemented interviews with staff members and analyses of the drawings of the facilities to grasp the present state of age-integrated facilities and their plan types, etc. Through analyses of relationships between intergenerational interactions and the spaces in which these take place, this study discusses guidelines for space arrangement and for developing interaction space plans for age-integrated facilities that would facilitate intergenerational interactions.

• International Commerce and Information Review
• /
• v.8 no.3
• /
• pp.167-189
• /
• 2006

In this year(2006), the Korean government has announced the integrated logistics promotion act, to improve the international competitiveness of Korean logistics companies and to develop the north-east asia logistics hubs. Therefore, in this study, emphasized to goes forward better and presents integrated logistics industry expansive assignment through domestic logistics companies' problem and integrated logistics industry investigation of certification system as plan for successful fixing of integrated logistics industry for Northeast Asia logistics hub while strengthen international competitiveness of domestic professional logistics companies. So that the South Korea becomes Northeast Asia logistics hub country, to expand lacking logistics infra at good time is important, also, reform backward logistics system of consignor companies and advance actively to the Northeast Asia logistics market is very important to improve the professional logistics companies' upbringing to lead the Northeast Asia logistics market.

• Journal of Korean Society for Quality Management
• /
• v.42 no.4
• /
• pp.563-578
• /
• 2014

Purpose: The purpose of this paper is integrated tolerance design process by advantages of engineering design and 6 sigma statistical tolerances design. Methods: Integrated tolerance design process can determine the goals by using engineer's experience and clarify tolerance by 6 Sigma statistical methods. Integrated design process can be applied by using non-linear simulations. Results: We applied integrated design process to the optical disc drive spindle motor and get good result. Conclusion: If this method is applied test method in the early stages of development, then Design can be reduced development time and cost.

• Journal of Institute of Control, Robotics and Systems
• /
• v.16 no.8
• /
• pp.810-815
• /
• 2010

This paper proposes a vision/DR integrated navigation system using distance between wheels of the vehicle and a gyroscope. In order to show the validity of the proposed vision/DR integrated navigation system, experiments were performed for a trajectory of a mobile robot. Experimental results show that the proposed vision/DR integrated navigation system gives better navigation performance than a vision/DR integrated navigation system using only distance between wheels of the vehicle.

• Journal of Institute of Control, Robotics and Systems
• /
• v.21 no.10
• /
• pp.903-909
• /
• 2015

This article presents an integrated chassis control with electronic stability control (ESC) and active front steering (AFS) under saturation of front lateral tire force. Regardless of the use of AFS, the front lateral tire forces can be easily saturated. Under the saturated front lateral tire force, AFS cannot be effective to generate a control yaw moment needed for the integrated chassis control. In this paper, new integrated chassis control is proposed in order to limit the use of AFS in case the front lateral tire force is saturated. Weighed pseudo-inverse control allocation (WPCA) with variable weight is adopted to adaptively use the AFS. To check the effectiveness of the proposed scheme, simulation is performed on a vehicle simulation package, CarSim. From simulation, the proposed integrated chassis control is effective for vehicle stability control under saturated front lateral tire force.

• Journal of Institute of Control, Robotics and Systems
• /
• v.12 no.10
• /
• pp.982-988
• /
• 2006

The errors of INS (Inertial Navigation System) are known to grow in time. To compensate the accumulated errors, measurements of external or onboard sensors are extensively utilized to form an integrated navigation system. Recently, INS/GPS integrated navigation systems have become popular since exact position and velocity information can be utilized by low cost GPS receivers. Unfortunately, this configuration cannot be trusted at all times especially when there are intentional or unexpected jammings and interruptions. To aid INS irrespectively of these cases, an INS/Image sensor integrated navigation system configuration is designed only based on the information of image sensor gimble angles. The performance of the INS/Image sensor integrated navigation system is evaluated by Monte Carlo simulation.

• International Journal of Aeronautical and Space Sciences
• /
• v.12 no.3
• /
• pp.260-265
• /
• 2011

In this paper, integrated missile guidance and control systems using time-delay control (TDC) are developed. The next generation missile requires that an interceptor hits the target, maneuvering with small miss-distances, and has lower weight to reduce costs. This is possible if the synergism existing between the guidance and control subsystems is exploited by the integrated controller. The TDC law is a robust control technique for nonlinear systems, and it has a very simple structure. The feature of TDC is to directly estimate the unknown dynamics and the unexpected disturbance using one-step time-delay. To investigate the performance of the integrated controller, numerical simulations are performed as the maneuver of the target. The results show that the integrated guidance and control system has a good performance.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.21 no.3
• /
• pp.721-730
• /
• 1996

In this paper, a new test criterion for binary decision problems is proposed. The integrated power flunction over a parameter interval is first itroduced as an extension of the power function. The concept of the most integrated powerful (MIP) test based on the integrated power function is then introduced. The MIP criterion is to masimize the value of the integrated power function in any paricular parameter interval. As an applicationof the MIP test, the known signal detection problem is considered. The test statistic of the MIP detector for known signals is obtained and an approximation to the MIP test statistic is also considered.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.9 no.1
• /
• pp.119-128
• /
• 2013

The spotlight is thrown on the ubiquitous technology these days, and diverse management technologies are proposed to efficiently manage the networks in the ubiquitous environment. Because each network has its unique management technology, the integrated management of complex networks is a very difficult challenge. In this paper, an integrated network management methodology is proposed to ensure the efficient management of different networks using ontology. Although the proposed integrated network management methodology is quite simple, the definition of this methodology is essential for the integrated network management. Using the $Prot\acute{e}g\acute{e}$ to Ontology development, the terms for the integrated network management were defined, along with the OWL and relevant rules, and several methods were implemented according to the proposed methodology. The process in this paper is considered essential for the network expansion and multiple network management.