• The Bulletin of The Korean Astronomical Society
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• v.37 no.2
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• pp.181.2-181.2
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• 2012

우주공간에서는 solar particle과 galactic cosmic ray에 포함된 proton, electron 및 heavy ion등에 의해 radiation 현상이 발생하는데 이는 각종 전자장비의 성능 감쇄 및 디지털 장비의 내부 정보를 교란을 야기할 수 있다. 특히 메모리의 bit 정보가 반전되는 Single Event Upset (SEU)의 경우 인공위성 및 우주정거장 등의 시스템에서도 빈번히 발생할 수 있으며 적절한 조치가 이루어지지 않으면 주어진 임무 수행 실패는 물론 시스템 failure까지 이를 수 있다. 따라서 SEU에 의한 문제 발생 시 신속한 문제 확인 및 대처가 매우 중요하다. 본 논문에서는 SEU의 발생 원인 및 영향과 기존의 오류 검출 및 수정 기법에 대해 소개하도록 한다. 또한 효율적이고 신뢰성 있는 설계를 위해 각 하드웨어 소자 특성에 따른 적합한 SEU 회피 방안을 제시하도록 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.11a
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• pp.181-184
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• 2021

자율주행 기술이 고도화됨에 따라 사용자가 주행 상황을 실시간으로 모니터링하고 주행을 제어할 수 있는 자율주행 서비스가 필요하다고 생각했다. 또한, 돌발 장애물을 고려하며 정해진 경로로 주행하는 자율주행을 구현하고자 해당 시스템을 설계하게 되었다. 해당 시스템은 차량, 서버, 애플리케이션으로 구성되어있으며 구성요소 간의 실시간 통신을 통해 차량 주행 상황 및 사용자 제어 명령을 자유롭게 전달하고자 했다. 차량의 자율주행 알고리즘을 구현하기 위해 이미지 데이터 처리에 효과적인 CNN을 활용하여 장애물 회피 모델과 라인 트레이서 모델을 구현하여 해당 모델들을 하나의 솔루션으로 통합하였다. 해당 솔루션 구현을 통해 차량이 마주할 수 있는 돌발 상황에 대처하는 자율주행의 안전성을 높이고자 했으며 자율주행 환경에서 사용자 조작을 용이하게 하고자 하였다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.8
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• pp.352-361
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• 2019

The purpose of this research is to verify the mediation effect of emotional regulation on the relationship between social anxiety and relational aggression in higher-grade elementary school girls. The research was conducted with 177 female students in grades 4, 5, and 6 attending an elementary school in Inchon, South Korea, and the results were used as a social anxiety scale, an emotional regulation ability scale, and a relational aggression scale. From using the data for multiple regression analysis, the results of this study are as follows. First, social anxiety showed a significant negative correlation with emotional regulation, and showed a significant positive correlation with relational aggression. Emotional regulation and social anxiety showed a significant negative correlation with relational aggression. Second, emotional regulation was fully mediated from the effect of social anxiety on relational aggression. Third, as a result of verifying the mediating effects from subordinate factors of emotional regulation on the relationship between social anxiety and relational aggression, positive emotional regulation, such as problem-centered coping support seeking was found to be partially mediated, whereas negative emotional regulation, such as emotional divergence, aggressive expression, and avoidance, was found to be fully mediated. Finally, the implications and limitations of this study are discussed.

• The KIPS Transactions:PartC
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• v.12C no.1 s.97
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• pp.45-52
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• 2005

A damage scale of information property has been increasing rapidly by various illegal actions of information systems, which result from dysfunction of a knowledge society. Reinforcement in criminal investigation requests of network security has accelerated research and development of Intrusion Detection Systems(IDSs), which report intrusion-detection about these illegal actions. Due to limited designs of early IDSs, it is hard for the IDSs to cope with tricks to go around IDS as well as false-positive and false-negative trials in various network environments. In this paper, we showed that this kind of problems can be solved by using a Virtual Protocol Stack(VPS) that possesses automatic learning ability through an optimum-adaptive mobile code. Therefore, the enhanced IDS adapts dynamically to various network environments in consideration of monitored and self-learned network status. Moreover, it is shown that Insertion/Evasion attacks can be actively detected. Finally, we discussed that this method can be expanded to an intrusion detection technique that possesses adaptability in the various mixed network environments.

• Journal of KIISE:Computing Practices and Letters
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• v.9 no.6
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• pp.674-682
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• 2003

Ship autonomous navigation is designated as what computerizes mental faculties possessed of navigation experts, which are building navigation plans, grasping the situation, forecasting the fluctuation, and coping with the situation. An autonomous navigation system, which consists of several subsystems such as navigation system, a collision avoidance system, several data fusion systems, and a motion control system, is based on an intelligent control architecture for the sake of integrating the systems. The motion control system, which is one of the most essential system in autonomous navigation system, controls its propulsion and steering gears to move the ship satisfying its hydrodynamic characteristics. This paper is the study on the ship movement control system and its implementation which are totally developed and run on virtual-world system. Receiving the high-level control values such as a waypoint presented from the collision avoidance system, the motion control system generates them to low-level control values for propulsion and steering devices. In the paper, we develop a ship motion controller using Oldenburger's theory based on mathematical fundamentals, and simulate it with various scenarios in order to verify its performance.

• Journal of Convergence for Information Technology
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• v.11 no.7
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• pp.195-201
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• 2021

This study analyzed the correlation between sensory processing types and stress responses in university students. A survey was conducted on 99 university students in Gyeonggi-do and Chungcheong-do. The survey contents consisted of Adolescent/Adult Sensory Profile and Stress Response Inventory. Data were analyzed using SPSS version 21.0 for descriptive statistics and Pearson correlation. As a result of the study, low-registration and sensory sensitivity were all correlated except for aggression of stress response, and sensory avoiding was all correlated of stress response. Sensory seeking was net related to any domain of stress response. Based on the results of this study, taking into account the correlation between sensory processing types and stress responses, it is recommended for convergence with other treatments to develop self-regulation strategies for coping with stress in university students.

• Journal of Space Technology and Applications
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• v.3 no.3
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• pp.280-300
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• 2023

This paper includes the development and operational status of the space object collision risk management system operated by the Korea Aerospace Research Institute. Currently, it monitors 6 low-orbit satellites and 3 geostationary satellites for collision risks 24 hours, enabling prompt collision avoidance maneuvers to ensure safe and stable operations. Since Chinese anti-satellite test (ASAT) in 2007, the monitoring of collision risks between space objects and operational satellites has been taken seriously, leading to the development of various collision risk management systems to respond quickly and efficiently to such situations. This paper provides an introduction to the space object collision risk management system developed from 2007 to the present, the current status of artificial space objects around Earth, and the system currently in operation. Additionally, it outlines future prospects and plans for the system.

• Korean Journal of Culture and Social Issue
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• v.11 no.2
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• pp.1-29
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• 2005

This research examined the effect of social anxiety on psychological adaptation. Higher the social anxiety, higher in neurotism & worry but lower in Psychological Well-Being and Satisfaction with Life. Among the sub-factors of social anxiety, negative adaptation was significantly predicted by personal anxiety. However positive adaption were predicted by personal anxiety, fairness anxiety and future anxiety. Among the sub-dimensions of social anxiety, negative and positive adaptation were significantly predicted only by anticipatory anxiety. And there were significant positive correlations between social anxiety and aggressive/give-up response. Particularly, personal anxiety was the predictor of aggressive response, but safe anxiety and political anxiety were the predictors of give-up response. The dimension predicted the aggressive/give-up response was anticipatory anxiety dimension. Finally, respondents used problem solving stress coping strategy most. But the respondents whose social anxiety level especially safe anxiety and political anxiety were high used wishful thinking strategy. Moreover higher the reactive anxiety level, more frequently used the avoidance coping strategy.

• Journal of the korean veterinary medical association
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• v.46 no.4
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• pp.342-362
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• 2010

최근 국내의 각종 공사장부근에서 일어나는 가축에 대한 환경분쟁(소음, 진동, 먼지 등)피해를 호소하는 농가가 지속적으로 늘고 있으나, 피해 농가의 피해를 입증할 수 있는 객관적인 자료가 부족한데 따라 보고서를 작성하는 데 여간 어려웠던 적이 한, 두번이 아님에 많은 아쉬움을 가졌다. 각종 공사로 인해 가축 사육 장소인 목장(농장)내 도로개설 및 관통으로 인한 목장의 지속여부, 겨울철 수렵시기에 총성으로 인한 한우 성장지연, 육질 저하 등에 미치는 영향, 태양광 발전소가 축사 인근에 있어 사육 한우가 성장지연 등의 피해를 호소하는 농가가 있으나, 이에 대한 관련 연구자들의 많은 연구가 이뤄졌으면 한다. 그런 가운데서 우리 임상수의사들의 관련 자료나 정보를 입수하여 보다 적극적으로 대처하여 피해 축산농가들에 대한 보상에 도움을 줘야 하나, 피해 목장내 사육가축의 진단서나 소견서등 발부요청에 미온적이거나 회피하는 경우들을 적잖게 목도를 하고 실망감을 감출 수가 없었다. 진단서 등의 각 항목의 기재 내용의 누락, 여러 마리를 한 장(1두 1매 원칙)에 작성한다거나 유 사 조산시 정확한 월(일)령의 비기재, 환경분쟁과 관련된 피해사실의 누락이나 전혀 무관한 병명으로 발급하는 경우 및 수의사법 등에서 승인된 양식을 이탈하여 임의로 작성하는 등의 예를 간혹 보아왔는 터라 개선이 시급하다 하겠다. 임상 수의사들이 발급하는 진단서나 소견서 등은 어디까지 관련 전문가나 법원 등의 감정시 어디까지나 참고용으로 활용되고, 발급에 따른 제 비용은 인정될 경우에는 피해농가들에게 되돌려주며, 절대적으로 피해를 주는 일이 없다는 것을 강조해두고 싶다. 따라서 필자는 환경분쟁사건을 현지조사내지는 보고서를 작성하면서 아직도 우리 임상 수의사들은 새로운 분야에 대한 능동적인 대처가 더더욱 요구되는 시기에 수동적이거나 미온적으로 대하는 사례에 안타까움을 호소하며, 환경분쟁시 가축에 미치는 영향과 최근 새로이 제시된 배상액의 산정기준을 소개하여 도움을 주고 싶다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.40-45
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• 2001

Arbitration is adopted recently as dispute resolution vehicle for major construction projects in Korea. These arbitration cases show that complex construction disputes are resolved reasonably by newly-introduced arbitration process and this trend will continue. This paper reviews the expanded concept of dispute resolution for the new approaches to the disputes resolution processes in construction projects. The expanded concept includes that disputes need to be assessed reactively and proactively in construction project and need to be managed effectively in advance. In this paper, dispute resolution methods used in Korea are reviewed and analyzed against ADR methods available in US construction industry The new approaches to the dispute resolution Processes are based on the concept of 'Disputability' which means dispute management through prevention, avoidance and predictability of dispute issues and characteristics.