Earticle

본 연구는 회수물류의 실행의 중요성이 강조되고 있는 가운데, 기업이 보유한 회수물류역량이 공급사슬 상의 협력기업들 간의 관계에서 기업의 수익을 향상시키며, 나아가 협력기업들 간의 협력만족도에도 긍정적인 영향 을 미칠 수 있음을 보이고자 한다. 회수물류역량에 관한 선행연구들에서는 주로 최종조립자와 소비자간의 관계에서 만 회수물류의 중요성을 다루고 있을 뿐 공급사슬 상의 협력 기업들 간의 관계에서 회수물류역량의 역할에 대한 연구는 거의 이루어지지 않은 실정이다. 회수물류의 실행은 자산가치를 복구하는 효과와, 재활용을 통한 비용감소 효과 및 이를 통한 이윤의 극대화의 성과와 관계가 있다. 이러한 회수물류역량은 협력기업들 간의 수익에도 영향을 미칠 뿐 아니라 협력 기업들 간의 협력 만족도에도 긍정적인 영향을 미칠 것으로 기대된다.

This study aims to define the positive relationship among reverse logistics capability, firm’s profits, and collaboration satisfaction. In the previous literatures about reverse logistics mainly focus on the importance of relationship between manufacturers and customers, but less likely on the potential positive effects of between collative firms. To implicate reverse logistics gives firms assets recovery, cost reduction through recycling which affects greater profits. Reverse logistics capability would be positively related with increasing profits for collaboration and satisfaction between partners.

현대 게임에서 음악의 입지는 점점 커지고 있으며, 게임 분야에서도 스토리텔링에 주도적인 역할을 하는 경우가 많다. 플랫폼 게임은 액션 게임의 한 종류에 속하는데, 그 속성상 캐릭터와 오브젝트의 상호작용과 이동이 일체화되어 있기 때문에 사운드 시스템과 밀접하게 결합되어 있다. 본 연구에서는 플랫폼 게임을 중심으로 그 스토 리텔링에 부합한 반응성 사운드 시스템을 구축해보고 있다. 직접적인 개발 경험을 바탕으로, 게임 음악이 게임의 스토리텔링에 직접적으로 관여하도록 구성하는 연구를 해보았다.. 또한 심리적, 음악적, 사회적 측면으로 서로 상응 되는 점을 고찰함으로써 향후 게임 음악에서 개선되어야 할 측면들을 고찰하였다.

Presence of music in the modern game is getting bigger and bigger, and storytelling in the area of game play a leading role in many cases. Platform game is one type of action game genre. In its nature, the character and the object in a game are closely coupled, thus they have intermate relation with reactive sound system. In this study, we tried to build a effective and reactive sound system which is suitable for the storytelling of platform game. In addition, we speculated various aspects of game including psychological, musical and social aspects, finally investigating the future aspects of the game music.

본 논문에서는 고구려 유적 중 유네스코 세계 문화유산으로 등록되어 세계적인 유적으로써 가치를 인정받 으며, 세계적으로 많이 알려진 고구려 고분벽화에 대해 Flash로 인터페이스를 제작하고 3D MAX 로 고분을 모델 링, 렌더링하고, Premiere로 편집된 애니메이션을 제작하여, 고구려 고분벽화를 가상으로 체험할 수 있는 시스템을 개발하였다. 고구려 고분벽화의 의미, 유적지, 시기 구분 등의 개괄적 설명과 더불어, 고구려인들의 옷, 집, 놀이 등 을 소주제로 선정하여 고구려 사람들의 생활상을 상세하게 알려주도록 개발하였다.

In this paper, we design and develop an educational virtual system which can experience Goguryeo tomb murals in the virtual world. Goguryeo tomb murals are well known in the world, and they are registered as a UNESCO World Heritage site by the value Acknowledged worldwide. We design an user-friendly interface for Goguryeo tome murals by Flash, and make a modelling and rendering with 3D Max. In addition, we create an educational animation with Adobe Premiere. We choose some of items such as Goguryeo tomb murals, historical sites, high-level description of periodization, Goguryeo’s clothes, home, play as sub-themes, and we develop a system with detailed views and informations for the daily life of the people of Goguryeo.

2차원 QR Code는 1차원 바코드의 용량, 크기, 방향에 대한 한계를 개선하였으며, 방대한량의 데이터를 압축하여 저장할 수 있는 능력을 갖추고 많은 응용분야에서 사용되고 있다. 최근에는 QR Code를 인식할 수 있는 스마트 폰의 도입과 사용의 증대로 QR Code의 도입이 급속도로 확산되었다. 하지만 다양한 정보를 저장할 수 있는 QR Code의 디코딩 기술에 대한 구체적인 문서화가 없는 상태이다. 따라서 본 논문에서는 QR code의 인코딩에 따른 디코딩 과정에 대해 구체적인 처리 절차와 알고리즘을 제시하고 예를 통해 디코딩 과정을 상세히 이해시키는 데 연구목적이 있다.

Two-dimensional QR Code has improved greatly the limits on the capacity, size, direction of the one-dimensional bar code. And it has the capacity of compressing and storing the massive amount of data and is widely used in many applications. Recently, the two-dimensional QR Code has been spread rapidly because of introducing the smart phones and increasing the amount of using them. However, there is little documentations about decoding the QR Code in which can store the large amount of information. In this paper, therefore, we present specific processing procedures and algorithms on decoding the two-dimensional QR Code and then make us understand their decoding process by explaining some examples.

PID auto-tuning controller was designed via fuzzy logic. Typical values such as error and error derivative feedbackwere changed as heuristic expressions, and they determine PID gain through fuzzy logic and defuzzification process. Fuzzy procedure and PID controller design were considered separately, and they are combined and analyzed. Obtained auto-tuning PID controller by Fuzzy Logic showed the ability for less than 3rd order plant control.

Observer design for system with unknown input was carried out. First, Kalman filter was considered to estimate system state with White noise. With the results of Kalman filter design, state observer, controller properties, including controllability and observability, and the Kalman filter structure and algorithm were also studied. Kalman filter algorithm was applied to Position and velocity measurement based on Kalman filter with white noise, and it was constructed and achieved by programming based on Matlab programming. Finally, observer for system with unknown input was constructed with the help of Gershgorin’s disc theorem. With the designed observer, system states was constructed and applied to system with unknown input. By simulation results, estimation performance was verified. In this project, state feedback control theory, observer theory and relevant design procedure, as well as Kalman filter design were understood and used in practical application.

The lightning shielding of different 500 kV HVAC-TL high voltage AC transmission lines was analyzed. The studied transmission lines were horizontal flat single circuit and double circuit transmission lines. The lightning attractive areas were drawn around power conductors and shielding wires. To draw the attractive areas of the high voltage transmission lines, transmission line power conductors, shielding wires and lightning leader were modeled. Different parameters were considered such as lightningslope, ground slope and wind on lightning attractive areas. From the calculated results, the power conductors voltages affected on attractive areas around power conductors and shielding wires. For negative lightning leader, the attractive area around the transmission line power conductor increased around power conductors stressed by positives voltage and decreased around power conductors stressed by negative voltage. In spite of this, the attractivearea of the transmission line shielding wire increasedaround the shielding wire above the power conductor stressed by the positive voltage and decreased around the shielding wire above the power conductor stressed by negative voltage. The attractive areas around power conductors and shielding wires were affected by the surrounding conditions, such as lightning leader slope, ground slope. The AC voltage of the transmission lines made the shielding areas changing with time.