• Journal of Navigation and Port Research
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• v.32 no.4
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• pp.271-277
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• 2008

When performing steering by an autopilot (automatic steering gear), a sensitivity adjustment is mainly determined by P value and D value. These values differ in the optimal combination by model of ship and external forces. This research was carried out simulation case studies and examined movement of Pure Car Carrier, which easily received ship by wind pressure influence in low speed We investigated the relation of horizontal migration(transfer) of ship's body and P-D value. Based on it, four parameters of P-D at approaching berth could be suggested Hence there were suggestions of parameters; Distance to maximum lee point, Time to maximum lee point, Time to return to original course and Time to 300th second. The correlation of these parameters and P-D value were also considered. As a result, we think that this index, like formulated P-D, leads to an easy and safe navigation by utilizing these indices.

• Proceedings of the Korean Society of Computer Information Conference
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• 2011.06a
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• pp.51-54
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• 2011

Telematics services include automatic location tracking for emergency rescue, which is available for use in case of a car accident due to falling off roadways. This paper presents a simulation study on how far a car will fall before it hits the ground, if dropped off the roadway due to an accident or a natural disaster. The greatest distance the falling car can travel is presented in this paper, on the assumption that air resistance as well as the direction and size of the acceleration due to gravity is negligible.

• 제어로봇시스템학회:학술대회논문집
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• 1988.10a
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• pp.98-102
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• 1988

A simple look and move type navigation algorithm with obstacle avoidance was implemented on a mobile robot equipped with two cameras. The robot gets a difference of two images from each camera and detects the position represented on the horizontal line and width of each obstacle in a certain distance. The obtained informations of obstacles are used to select a next intermediate point and to plan a path to it. Robot motion is simplified to straight line motion and rotation.

• Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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• 2000.10a
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• pp.53-56
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• 2000

This paper discusses the horizontally rotaling wind power generator. Quasi static analysis are applied to performance. Translational velocity. which varies on the distance from the rotating wind power generator is effective in speed. In high rotation. the reverse torque reduces the total effective troque. It is recommended to giver efforts to redutorque for the acceptavle performance of the horizontallv rogatting tvpe generator.

• 제어로봇시스템학회:학술대회논문집
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• 1990.10a
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• pp.716-721
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• 1990

It is one of the essential task to determine the absolute location of mobile robot during its navigation. In this paper we propose an algorithm to calculate the distance and orientation of camera from landmark through the visual image of stripe typed landmark. Exact closed form solution of camera location is obtained with the correspondences from vertical line on mark plane to the intersection point of projected line with horizontal axis of image plane. It needs only one line image information, so that location determination can be processed in real time.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.10 no.2
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• pp.45-48
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• 1992

The sighting errors significantly affect to the measuring angle in the horizontal angle observation. We achieved trilateration for the observation of the measuring angle value involved sighting error. According to the each measuring distance, this study dealt with the measuring angle errors through the comparison of the measuring angle with the computed angle in trilateration.

• Proceedings of the IEEK Conference
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• 2002.06d
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• pp.49-52
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• 2002

This paper presents a fast algorithm for face detection from color images on internet. We use Mahalanobis distance between standard skin color and actual pixel color on IQ color space to segment skin color regions. The skin color regions are the candidate face region. Further, the locations of eyes and mouth regions are found by computing average pixel values on horizontal and vertical pixel lines. The geometry of mouth and eye locations is compared to the standard face geometry to eliminate false face regions. Our Method is simple and fast so that it can be applied to face search engine for internet.

• Structural Engineering and Mechanics
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• v.56 no.3
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• pp.341-354
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• 2015

The dual-phase lag heat transfer model is employed to study the problem of isotropic generalized thermoelastic medium with internal heat source. The normal mode analysis is used to obtain the exact expressions for displacement components, force stress and temperature distribution. The variations of the considered variables through the horizontal distance are illustrated graphically. The results are discussed and depicted graphically.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.20 no.43
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• pp.197-204
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• 1997

Torques on each joint, the compression on L5/S1 disc, the force on hand of a rider are estimated using a static biomechnic model. Forces that the rider applies to the pedals, saddle and handle during starting and speeding are estimated using static mechanics. Physical stress is considered accroding to handle height and horizontal distance between handle and pedal. When handle height is higher in normal speeding, the force on handle and sum of torques on each joint decreases.

• Proceedings of the KSRS Conference
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• 2002.10a
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• pp.358-360
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• 2002

In order to find horizontal and vertical precipitation structure in Korean peninsula, we use ground-based radar, and Automatic Weather Station (AWS) data. Radar data was selected for rain events in the Pusan and Jindo in Korea, during the spring and summer season of 2002. AWS point gauge measurements are analyzed as part of spatial structure of precipitation. TRMM/PR and ground-based radar is used vertical correlation. The results showed, as expected that the correlation decreased rapidly with distance.