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내쉬의 파이게임은 수많은 균형을 가지고 있다. 그러나 현실에서는 절반으로 나누는 분배가 관행적으로 이루어지고 있음을 알 수 있다. 본 연구에서는 내쉬 모형의 변형된 형태를 분석하여 절반으로 나누는 분배가 다른 균형보다 왜 더 안정적인 결과를 낳는지에 대해 진화 게임적 접근 방식을 이용하여 분석하고자 한다. 본 연구에서는 다른 경기자들을 모방하는 행태를 보이는 경기자들이 때때로 선택에 있어서 의도하지 않은 실수를 한다는 점을 가정한 결과, 균등분할이 유일하게 확률적 안정성을 지니고 있는 해임을 보이고 있다.
본 논문에서는 입체도형에 대한 학습을 효과적으로 수행하기 위한 웹 기반 입체 도형 학습 프로그램을 설계하고 구현하였다. 이를 위해 학습자에게 편리한 사용자 인터페이스와 입체도형 학습에 필요한 기능을 분석하였으며, 학습자의 흥미를 유발 할 수 있는 다양한 입체도형 학습기능을 개발함으로써 실제 수업 현장에서 쓰일 수 있는 유용한 학습프로그램이 될 수 있도록 하였다. 기존 연구와의 비교분석과 초등학교 학생들의 사용 평가를 통해 본 프로그램의 유용함을 확인하였다. In this study, we designed and developed Web-based 3D figure learning program which can create and control the 3D figures effectively in cyberspace. To develop this learning program, we used the JAVA 3D because JAVA 3D can express 3D figures effectively in cyberspace and is platform independent. This program is very helpful for learners to understand the concept of 3D space and the formulation of space concept effectively. Also it motivates learners to understand 3D figures study and enables Self-Directed-Learning.
Synthetic biology aims to develop engineering-driven approaches to the programming of cellular functions that could yield transformative technologies. Despite many advances in synthetic gene circuits, challenges remain for scaling up the complexity of these networks due to the limited number of composable parts and substantial resource requirements. Here, we report a strategy for constructing RNA-only nanodevices to evaluate complex logic in living cells. Such ‘ribo-computing' systems are composed of de novo designed parts and operate via predictable and designable base-pairing rules, allowing for effective in silico design of computing devices with prescribed configurations and functions in complex cellular environments. We demonstrate that these ribocomputing devices in Escherichia coli can evaluate four-input AND, six-input OR, and a complex 12-input logic expression.
We are agree on the importance of medium and small manufacturing business in the national economy. But there is little actual condition research about the present condition of medium and small manufacturing business managerial accounting systems. The problem of officials in charge is the shortage of concerned useful information when making a decisions in practical business. So the first subject concerns how useful information applies to practical business. Furthermore, the company gathers and uses information concerned with decision making of management. Reasonable understanding and the comprehension ability of the officials in charge is required to design and operate the cost accumulation and managerial accounting system. To solve this problem, we should understand the status of the managerial accounting system standing of medium-small business, and this study investigates the degree of official's understanding as follows. First, to understand the managerial accounting system, we have considered practical problems compared with the results of domestic ore-research, such as in Japan and U.S.A. Second. to act the strategy of management, we are going to design a control system which supports the management plan and helps obtain of the organizational purpose of manager. Third. we are going to help make cost calculations and sound managerial accounting system affairs of Korean medium-small business. The extent of this study is as follows, (the practical research of managerial accounting system in Pusan·Kyung-nam area) First. we have analysed the manufacturing price factors, the distribution status of cost management and the status of cost calculation. Second. we have gone a practical analysis of cost management status for the managerial accounting system and the control in medium-small business. Third, we have analysed the cost calculation system and managerial accounting system in medium-small business details. Fourth. from the results of analyses compared with the results of pre-research about the managerial accounting system of company, we suggested the needs of settlement to solve problems in the managerial accounting system of medium-small business. We also suggested methods of how to advance the managerial accounting system. First, direct material cost is mostly occupies present medium-small business manufacturing cost and distributing condition of manufacturing overhead cost is made most by habit from the past and simplification of calculation. According to it. we can know that the composition of manufacture cost and distribution standard is not rational and efficient. Second, we know that the result which analyses the managerial accounting system of present medium-small business and the cost management condition for control of so many uses cost information to real cost calculation for financial report and simply stock management. So we know that it is urgent to develop a systematical managerial accounting system for applying cost calculation system from play of goods. Third. the application degree of cost information is rather high in each part of management decision making, Particularly, it shows that cost information in price making or price negotiation is useful. But managerial accounting system officials in medium-small business express that the pursuit of improvement method is main subject because the satisfaction of cost calculation method in now is lower than that of a large company. Fourth, cost management officials in medium-small business suggest getting a proper cost calculation method, preparing cost data collection system in each part and pursuing a computer system for the overcoming problem of cost calculation. And without concern for the scale of business, the method for developing managerial accounting system is to introduce of standard cost calculation system and to develop a standard distribution of reasonable manufacturing overhead cost. Generally speaking, our medium-small businesses dont have a proper managerial accounting system in the processing F.A. Compared with a large company. medium-small business does not have enough cost calculation and managerial accounting system. So. medium-small businesses need to give up their old management ways which have depended on their experience' and habits in past and it needs the change of their thoughts to recognize the importance of cost newly. Medium-small businesses have to hurry up to invest for education their officials and making high-quality of managerial accounting system.
Video security systems change from analog based systems to network based CCTVs. Therefore, such network based systems are always exposed not only to threats of eavesdropping and hacking, but to personal damage or public organizations' damage due to image information leakage. Therefore, in order to solve the problem, this study conducts a comparative analysis on proposes the optimal ECC(Elliptic Curve Cryptography) scalar multiplication algorithms for image information protection in data communication process and thereby proposes the optimal operation algorithm of video security system. 기술의 발전을 통해 기존 영상보안시스템들이 아날로드 방식의 CCTV에서 네트워크 기반 CCTV로 교체되어지고 있다. 이러한 기술 변화로 인해 네트워크를 이용한 도청 및 해킹에 대한 공격이 발생하게 되면 영상정보유출로 인해 개인 및 공공 기관에 대한 피해는 막대하다 할 수 있다. 따라서 이러한 피해발생을 해결하기 위해 본 논문에서는 데이터 통신 과정에서 영 상정보를 보호할 수 있는 ECC(Elliptic Curve Cryptography) scalar multiplication algorithm들을 비교 분석하여 영상시스템에 서 최적화된 ECC scalar multiplication algorithm을 제안하고자 한다.