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尹現東 世明大學校 1996 世明論叢 Vol.5 No.-
During the 1980s, the field of management accounting was reborn. Increased global competition demanded that companies make major changes in the technology and organization of their production processes and improve the effectiveness of decisions concerning pricing, product design, and product and customer mix. These demands required accurate information about production processes and about the resources consumed to produce products and to sell them to customers. Companies' cost systems, however, were unable to supply accurate, relevant information for these purposes. This article represents sytematically contents from traditional management accounting that focuses on the calculation of manufacturing cost to new magerial accouting paradigms that focuses on cost driver. The new approaches focus on improving the information provided to managers and employees about their organization, and placing increased attention on the design of information and control systems.
윤민성(Min-Sung Yun),이우철(Woo-Cheol Lee),현동석(Dong-Seok Hyun) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-
본 논문은 3상 입력전원의 불평형과 고조파문제를 대칭 좌표계를 통해 각각 정상분과 역상분으로 분리하여 동기 회전 좌표계 상에서 보상할 수 있는 알고리즘을 제안하였다. 동기 회전 좌표계 상에서 보상이 이루어지므로 UPQC와 같은 다양한 목적의 능동전력필터에 쉽게 적용될 수 있다. 제안된 알고리즘의 타당성을 뒷받침하기 위해 시뮬레이션을 수행하였다.
Cloning-independent engineering of elastin-like polypeptides using unnatural amino acids
( Christy ),오수진,민승의,원종인,윤현동,김동명 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1
Based on the central dogma of protein synthesis, traditional methods for protein engineering require that altering protein structure and function must be accompanied by changing the nucleotide sequence of the genes encoding the protein. However, the preparation of a template gene for each individual protein requires a great deal of time and effort, thereby limiting the throughput and scope of studying engineered proteins. In this study, we describe translation-level engineering of proteins using cell-free protein synthesis. Taking advantage of the promiscuity of aminoacyl tRNA synthetases in accepting structurally similar amino acid analogues, unnatural amino acids were introduced into elastin-like polypeptides in place of the corresponding cognate amino acids. Through the incorporation of various analogues and starting from the same gene, the phase transition temperatures of elastin-like polypeptides became tunable. Our results demonstrate the usefulness of cell-free protein synthesis for protein engineering using unnatural amino acids without the need for cloning.