• 한국콘텐츠학회논문지
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• 제16권12호
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• pp.291-299
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• 2016

본 연구는 새로운 노인층을 구성하는 장년층 세대에 부합할 수 있는 정책 대응 방안을 50+센터의 역할 정립을 중심으로 모색하였다. 분석결과 장년층 세대는 기존 노인층에 비해 사회 참여 욕구가 높은 것으로 나타났으며 노인종합복지관 등 기존 기관들은 해당 역할 수행이 미흡한 것으로 나타났다. 따라서 50+센터는 서울의 장년층 세대가 은퇴 이후 최초로 진입하는 공공영역의 기관으로 그들의 인생설계교육 및 사회참여 교육을 중심으로 역할을 정립해야 할 것이다.

• 한국콘텐츠학회논문지
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• 제8권8호
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• pp.81-89
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• 2008

의학의 발전과 저출산 현상이 발생하면서 우리 사회는 고령화 시대로 접어들고 있다. 이에 따라 노년의 인구가 점차 증가하고 이는 점차 사회적 문제가 되고 있다. 실버세대를 위한 여가 활동을 위한 필요성이 증가하고 있는 것이다. 본 논문에서는 먼저 실버세대들의 여가활동 유형을 분석해 보았다. 먼저 60세 이상의 연령에서는 TV 시청과 휴식 수면이 가장 높은 여가 활동유형으로 나타났으며, 컴퓨터의 사용에 대한 응답률이 낮지만, 인터넷에 익숙한 $40^{\sim}50$ 세대가 노인층으로 진입할 경우 그 응답률이 높은 것으로 예측되었다. 둘째, 이러한 $40^{\sim}50$대가 노인층으로 진입할 경우 이들을 위한 노인용 유망 멀티미디어 콘텐츠를 예측해 보았다.

• 한국자원식물학회지
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• 제23권1호
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• pp.19-24
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• 2010

종자에 감마선 조사(0, 10, 15, 20, 25, 30 G y)를 실시한 후 768립과 972립의 종자를 각각 파종한 후 종자발아, 생장, 생존율 및 변이체 유발에 미치는 방사선량의 영향을 조사하였다. 술패랭이꽃은 90 Gy, 층꽃나무는 80 Gy 이상의 선량에서는 조사량이 증가될수록 발아가 지연되고 발아율도 저하되었다. 반치사선량은 술패랭이꽃 150 Gy, 층꽃나무는 100 Gy 수준이었다. 술패랭이꽃과 층꽃나무의 생장은 120 Gy 이상의 조사량에서 현저하게 억제 되었다. 술패랭이꽃은 $M_1$ 세대에서 17개의 변이체가 나타났으며, $M_2$ 세대에서 4개의 유망 변이체를 선발하였다. 층꽃나무는 $M_1$ 세대에서 7개의 변이체가 나타났으며, $M_2$ 세대에서 8개의 유망 변이체를 선발하였다.

• Nuclear Engineering and Technology
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• 제38권8호
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• pp.697-732
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• 2006

In this paper, a historical review of the developments in the safety of LWR power plants is presented. The paper reviews the developments prior to the TMI-2 accident, i.e. the concept of the defense in depth, the design basis, the large LOCA technical controversies and the LWR safety research programs. The TMI-2 accident, which became a turning point in the history of the development of nuclear power is described briefly. The Chernobyl accident, which terrified the world and almost completely curtailed the development of nuclear power is also described briefly. The great international effort of research in the LWR design-base and severe accidents, which was, respectively, conducted prior to and following the TMI-2 and Chernobyl accidents is described next. We conclude that with the knowledge gained and the improvements in plant organisation/management and in the training of the staff at the presently-installed nuclear power stations, the LWR plants have achieved very high standards of safety and performance. The Generation 3+LWR power plants, next to be installed, may claim to have reached the goal of assuring the safety of the public to a very large extent. This review is based on the historical developments in LWR safety that occurred primarily in USA, however, they are valid for the rest of the Western World. This review can not do justice to the many fine contributions that have been made over the last fifty years to the cause of LWR safety. We apologize if we have not mentioned them. We also apologize for not providing references to many of the fine investigations, which have contributed towards LWR safety earning the conclusions that we describe just above.

• Strategy21
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• 통권42호
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• pp.53-82
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• 2017

Samuel Eliot Morison (1887-1976) was one of the pre-eminent historians of his generation. He was not only a famous historian at that time, but also was promoted to the rank of Admiral in U.S. Navy Reserve. Fifteen volume History of United States Naval Operations in World War II was published between 1947 and 1962, was not only a comprehensive report on the Navy's projection of power over two oceans, but a classic of historical literature that stands as the definitive treatment of it subject. Although he was fifty-five when war come to America in December 1941. Samuel Eliot Morison was determined to play a role. A professor at Harvard at the time, he joined volunteering for duty in the Navy. An experienced sailor, Professor Morison had earlier sailed that same routes taken by Christopher Columbus while researching his biography, Admiral of the Ocean Sea, which appeared in January 1942 th much acclaim and later got a Pulitzer Prize. Thus Morison plunged into the war, crossing the Atlantic aboard a destroyer. He assumed himself as "Parkman on the sea", tried to follow Parkman's historiographic method, not only participatory history but also literary style. And during writing History of United States Naval Operations in World War II, He emphasized two principles, publicity and objectivity. In terms of publicity, he always worried about who read history and why. In his pamphlet, "History as a Literary Art", he asserted it is useless if readers do not read a history which historians wrote. So he thought historians have forgotten that there is an art of writing of history. Therefore, he built his narratives around brightly rendered visuals and used the present tense to describe actions he witnessed firsthand, he wrote of the U.S. combat in very vividly. But strongly driven by publicity, he sometimes lost his balance in writing the naval history. For instance, the naval history became the focus of criticism for its prejudiced comments about the commanders. Also some reviewers asserted he did not secure the objectivity on writing the naval history. Although he sometimes deliberately torpedoed the objectivity of his work for strengthening publicity, by writing an extensive U.S. naval history, he introduced maritime history and naval history to the public widely. Until in early twentieth century, U.S. historians usually had been focusing their effort to the traditional areas, for example politic, economy, and etc. His intensive effort on the operations of U.S. Navy in World War II aroused a public interest in maritime and naval history. In conclusion, through using literary style and realistic narratives, historian Morison wrote a naval history for all the people which could appealed to the public.