• Proceedings of the KOSOMBE Conference
• /
• v.1996 no.05
• /
• pp.97-99
• /
• 1996

Intracellular gradients of the free calcium concentration are thought to be critical for the localization of functional responses within a cell. The mechanism of mechanotransduction may be associated with the localized accumulation of calcium stores for shear stress-exposed endothelial cells. The distribution of the calcium stores and the formation of the stress fibers were investigated by the indirect double immunofluorescent staining method with the calreticulin antibody and rhodamine phalloidin under flow condition. The shear stress of steady flow reorganized the cytoskeleton structure including the bundling and translocation to focal contacts. The calcium stores translocated from the cytoplasm to the focal contacting area. Consequently. accumulation of the calcium stores may participate in the shear stress-induced cytoskeleton organization of endothelial cells.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
• /
• v.29 no.11
• /
• pp.878-883
• /
• 2018

A jamming design scheme to disturb target position estimation of a bistatic multiple-input multiple-output(MIMO) radar system is presented. The proposed method exploits the received signals from distributed multiple electronic sensors and combines them to produce a jamming signal. The proposed algorithm can eliminate the target by transmitting the delayed sum or the weighted sum of the received senor signals. Simulation results confirm the performance of the proposed method.

• Journal of Digital Convergence
• /
• v.12 no.9
• /
• pp.209-217
• /
• 2014

As an idea of healing or fatigue recovery, a desire for massage therapy has increased for modern people who complain of pain such as knotted muscles or shoulder discomfort due to fatigue accumulation and stress. To resolve this, although a massage chair has been developed, it does not provide the most efficient massage as it is not suitable for Korean body types. In this paper, this research analyzed massage, assembly, massage intensity, Korean body types and functions of the massage for maximized efficiency to design critical functions. Also, we implemented the action control and algorithm of the massage chair for localization.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.14 no.10
• /
• pp.2230-2236
• /
• 2010

Although recent years whole of shipbuilding market is seriously stagnant, an importance of ship fundamental technology issues has been increased. Accordingly diversity attempts to get various solutions are in progress by national support. Therefore, in this paper it deals with a remote operation control system which is a part of propulsion thruster system. it is proposed a propulsion thruster remote operation control system which is developed by localization technology as well as the methods not only to design hardware and software but to develop hardware and software.

• Korean System Dynamics Review
• /
• v.7 no.2
• /
• pp.57-80
• /
• 2006

Nuclear technology made a great contribution to the national economy and society by localization of nuclear power plant design, and by stabilization of electricity price, etc. It is very important to conduct the retrospective analysis for the nuclear technology contribution to the national economy and society, but it is more important to conduct prospective analysis for the nuclear technology contribution. The term "technology value" is often used in the prospective analysis to value the result of technology development. There are various definitions of technology value, but generally it means the increment of future revenue or the reduction of future cost by technology development. These technology valuation methods are widely used in various fields (information technology or energy technology, etc). The main objective of this research is to develop valuation methodology that represents unique characteristics of nuclear power technology. The valuation methodology that incorporates market share changes of generation technologies was developed. The technology valuation model which consists of five modules (electricity demand forecast module, technology development module, market share module, electricity generation module, total cost module) to incorporate market share changes of generation technologies was developed. The nuclear power technology value assessed by this technology valuation model was 3 times more than the value assessed by the conventional method. So it was confirmed that it is very important to incorporates market share changes of generation technologies. The valuation results of nuclear power technology in this study can be used as policy data for ensuring the benefits of nuclear power R&D (Research and Development) investment.

• 제어로봇시스템학회:학술대회논문집
• /
• 2005.06a
• /
• pp.250-255
• /
• 2005

For navigation of a service robot, mapping and localization are very important. To estimate the robot pose, the map of the environment is required and it can be built by exploration or SLAM. Exploration is the fundamental task of guiding a robot autonomously during mapping such that it covers the entire environment with its sensors. In this paper, an efficient exploration scheme based on the position probability of the end nodes of a topological map is proposed. In this scheme, a topological map is constructed in real time using the thinning-based approach. The robot then updates the position probability of each end node maintaining its position at the current location based on the Bayesian update rule using the range data. From this probability, the robot can determine whether or not it needs to visit the specific end node to examine the environment around this node. Various experiments show that the proposed exploration scheme can perform exploration more efficiently than other schemes in that, in most cases, exploration for the entire environment can be completed without directly visiting everywhere in the environment.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2010.10a
• /
• pp.196-199
• /
• 2010

The human eyes are important facial landmarks for image normalization due to their relatively constant interocular distance. This paper introduces a novel approach for the eye detection task using optimal segmentation method for eye representation. The method consists of three steps: (1)edge extraction method that can be used to accurately extract eye region from the gray-scale face image, (2)extraction of eye region using labeling method, (3)eye localization based on intensity information. Experimental results show that a correct eye detection rate of 98.9% can be achieved on 2408 FERET images with variations in lighting condition and facial expressions.

• Journal of Institute of Control, Robotics and Systems
• /
• v.21 no.7
• /
• pp.602-608
• /
• 2015

This paper proposes an algorithm for precise detection of corner points on a coplanar checkerboard in order to perform stereo camera calibration using a single frame. Considering the conditions of automobile production lines where a stereo camera is attached to the windshield of a vehicle, this research focuses on a coplanar calibration methodology. To obtain the accurate values of the stereo camera parameters using the calibration methodology, precise localization of a large number of feature points on a calibration target image should be ensured. To realize this demand, the idea with respect to a checkerboard pattern design and the use of a Homography matrix are provided. The calibration result obtained by the proposed method is also verified by comparing the depth information from stereo matching and a laser scanner.

• Korean Institute of Interior Design Journal
• /
• v.14 no.3 s.50
• /
• pp.84-94
• /
• 2005

The purpose of this study is to establish the identity of the traditional residential space in Korea and Japan as analyzing the spatial characteristics and sociocultural roles of the 'in-between space' shown in their traditional dwelling space. Although they share culture area, it is meaningful to clarify the identity of both countries with many differences as the point of localization In globalization and the point of presenting the current and future directions of residential culture in both countries. Records and field studies have been carried out for the spatial characteristics and the sociocultural role focused on Ma-dang and Dae-chung in case of the 'in-between space' in Korean traditional dwellings and Inner housing, Doma, and Engawa in Japan. According to these findings, the spatial characteristics in common between Korea and Japan are open, half-open, separation, mitigation, integration, variation, continuation, hierarchy, mediation, and expansion. The 'in-between space', built by the separate Chae and Kan, of Korean traditional dwellings shows the separation by closed walls and the exclusive use by the fixed walls. In case of Japan, the integrated in-between space built by the separation of Kan shows open and connective tendencies and the variableness of walls has the tendency making ambiguous space with spatial softness. The sociocultural role of the 'in-between space' in Korean traditional dwelling space functions as the mitigation between the interior and exterior of the house as well as the male and female. Because the conception for protecting the private life is too weak, the sociocultural role of the 'in-between space' in Japanese traditional dwelling space seldom forms the space for an individual or the specific person among family. The space to welcome a guest functions as the mitigation between residents and outsiders as it is located in the inside of the private dwelling space.

• Journal of the Korea Convergence Society
• /
• v.9 no.7
• /
• pp.199-203
• /
• 2018

Because of emission control of greenhouse gas, shipbuilders, especially those in Korea, are pushing forward to introduce eco-friendly ship-building technology utilizing LNG. However, Technical skills of domestic shipbuilders in manufacturing the cryogenic pump designed to supply LNG for vessels are so low that technical skills for design and manufacturing of core parts are in urgent need. Therefore, This study described about the Rotor as a core part of cryogenic submerged centrifugal pump for ship LNG supply system. We wish to utilize for the basic data to develop the technology for the Rotor as deducing the optimal outcome with the experimental and the analytical methods in material selection.