• Transactions of the Korean Society of Mechanical Engineers A
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• v.35 no.1
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• pp.115-120
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• 2011

The dynamic responses of a 5 MW wind turbine lifted by a floating crane with two elastic booms are analyzed. Dynamic equations of motions of a multibody system that consists of a floating crane, two elastic booms, and a wind turbine are derived. The six-degree-of-freedom (DOF) motions for the floating crane and the wind turbine are considered in the equations of motions. The hydrostatic force, the hydrodynamic force due to a regular wave, the mooring force, the wire rope force, and the gravitational force are considered as external forces. By solving the equations numerically, the dynamic responses of cargo are simulated. The simulation results are compared with those in the case of one elastic boom. Finally, the dynamic responses of the wind turbine lifted by the floating crane are analyzed under regular wave condition.

• Digital Contents
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• no.4 s.47
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• pp.5-11
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• 1997

관계형 데이터베이스관리시스템(이하 RDBMS)업계에 객체관계형 DBMS(이하 ORDBMS) 열풍이 몰아치고 있다. 지난해 인포믹스와 오라클의 유니버설 논쟁으로 시작된 ORDB 논쟁은 올들어 주요 RDBMS 업체들이 잇달아 ORDBMS 제품을 내놓거나 출시를 앞두고 있어 본격적인 시장경쟁으로 이어질 전망이다. DBMS 시장의 이같은 급속한 변화는 실상 인터넷 붐이 만들어 낸 또다른 현상이라고 해도 과언이 아니다. 인터넷의 속성상 데이터만이 아니라 비정형 멀티미디어 데이터를 처리할 수 있는 새로운 개념의 데이터베이스 관리시스템이 필요하기 때문이다. 지난 93년 유니SQL 공급을 시발로 시작된 국내 ORDBMS 시장은 지난해 일러스트라 공급과 인포믹스 유니버설 서버 발표로 시장형성기에 접어들었으며, 올 하반기면 주요 RDBMS 업체들이 모두 제품을 출시할 것으로 보여 본격적인 개화기에 접어들 것으로 보인다. 국내 주요 RDBMS 업체를 중심으로 변화하는 DBMS 시장과 ORDBMS 전략을 점검해 본다.

• The Research Journal of the Costume Culture
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• v.23 no.5
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• pp.778-792
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• 2015

The purpose of this study is to identify women (aged from 49~59), who have recently emerged as consumers, and their clothing preferences, and it suggests how to make jackets provide better fit and wearability. The results of the study are as follows. In drafting a pattern for size 66 tailored collar jacket with an X-silhouette, it was made with front waist length measuring B/4+1.5 cm, a back length of B/4+1.3 cm, an armhole depth of B/4, a hip ease of H/4+1.2 cm and a sleeve opening of 34.5 cm, to allow for easy movement. In drafting a size 66 high neck collar jacket, it was made with a front and back waist length measuring B/4+1.5 cm, an armhole depth of B/4, a hip ease of H/4+1.2 cm and a sleeve opening of 35 cm. In drafting a size 66 sports collar jacket with an A-silhouette, it was made with front and back waist lengths measuring B/4+1.5 cm, an armhole depth of B/4, and a side dart of 1.3 cm, to provide raglan sleeves. The last experimental jacket pattern improved the appearance and moving fitness evaluation especially for shoulder and arm movement. Based on analysis, jackets were made and subjected to an appearance evaluation using multi-modules to test the level of wearing satisfaction for each fabric and silhouette. the results of the multi-module wearing tests indicate that the preferred silhouettes caused less stressful situations in terms of both psychological and physiological signals.

• Archives of design research
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• v.13 no.1
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• pp.227-235
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• 2000

From environmental point of view, the foreign exchange crisis has motivated the Government to make the positive promoting policy for holding the foreign currency, leading to a series of small companies' bankruptcy due to foreign distribution companies' advance into our country, creating a new consuming culture. Though inaugurations have been vividly in progress in the aftermath of recession, reduced staffs and arranged layoff, their way gives priority to the reduced frame of the existing method rather tham the development or improvement of a new distribution. It is difficult to attain the sales goal unless a marketing analysis is not properly made, due to store managers' lack in expertism of management. In view of culture, the change of retail stores is imperative at the point that the type of consumers' purchase is rapidly changing and a more positive business system is needed. preventing an opportunistic loss of management through the analysis of outcome such as consumer management, sales management and account management by using computers. In view of design. the display in sale is to interpret products more charmingly, and should make interpretation accurately by selecting an important theme. For this, taking the store for valuables for instance. the progress on the effective foundation and store dinic business by presenting the design blue print can be made, and the strategy coping with the foreign distribution market's rush into Korea can be established. through the advanced store management.