• 보험의학회지
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• 제4권1호
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• pp.86-92
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• 1987

We've reviewed 704 cases of claims by death that had occured for one year from April, 1985 to March, 1986. As a result, we came to following conclusions; First, the greater part of the death were due to Accidental death(25.0%), Malignant neoplasm(21.2%), Heart disease(12.9%), Liver cirrhosis(9.1%), and the cerebrovascular disease(5.5%), which were occupied by 73.7% of the whole. Second, classifying them by medical examinations or non medical, death in case of non medical examinations showed 94.3% of whole. And for age, section ranging from 40 to 49, from 50 to 59, and from 60 to 69 took the overwhelming portion by 28.6%, 24.2%, and 16.6% respectively, those of wich showed 69.4% of the whole. Third, for the period elapsed, death within 1 year from the entrance showed 16.9% and that from 1 year to under 2 years 18.8%, Thus the rate of early death under 2 years stood for 35.7% of the whole.

• 소성∙가공
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• 제7권4호
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• pp.340-346
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• 1998

A kinematically admissible velocity field is developed for the analysis of twisting of the extruded products with elliptical shapes from round billet. The twisting of extruded product is caused by the lin-early increased rotational velocity from the center on the cross-section of the workpiece at the die exit. In the analysis the rotational velocity in angular direction is assumed by the multiplication of radial distance and angular velocity. The angular velocity is zero at the die entrance. The increase rate of angular velocity is determined by the minimization of plastic work. The results of the analysis show that the angular velocity of the extruded product in creases with the die twisting angle, the aspect ratio of product the friction condition, the reduction of area, and decreases with the die length.

• 수산해양기술연구
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• 제13권1호
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• pp.1-5
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• 1977

A series of echo-sounding and current measurements as well as the drogue and the drift bottle experiments were carried out in Asan Bay since November 1974. Several sand bars or sand flats covered by silts were developed at ebb tide in the bay. Sand waves and sand ripples were seen on the surface of the sand bars, around which sea channels of 8~ 12 meters in depth are formed. The main stream axis of the flood current which is separated into east and west branch flows southward. A cyclonic and an anticyclonic eddy are developed at the early stage of flood tide. They are transformed into a clockwise eddy before the slack water. The maximum tidal current speed observed was 3.1 ~ 3.2 knots at the entrance of the bay, while it was 1.O ~ 2.8 knots in the bay. The location of the main stream axis of the tidal current coincides well with the sea channel. A salt wedge was observed at the estuary of the Sabgyo-cheon River.

• 한국항만학회지
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• 제14권2호
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• pp.233-239
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• 2000

The expansion of old road is needed in constructing the entrance at the $\bigcirc$$\bigcirc$I/C road in $\bigcirc$$\bigcirc$city. To strength the national competition, many agents who concerned do their best for finishing that construction early as soon as possible. In generally, soil embankment on soft foundation is caused to reduce the stability by making the settlement of ground surface due to the over load. Thus, we try to make it stable by building EPS embankment construction which in our working place is one kind of the method of light embankment construction after excavating the original ground.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 1999년도 추계학술대회논문집
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• pp.219-224
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• 1999

The expansion of old road is needed in construction the entrance at the $\bigcirc$$\bigcirc$I/C road in $\bigcirc$$\bigcirc$city. To strength the national competition, many agents who concerned do their best for finishing that construction early as soon as possible. In generally, soil embankment on soft foundation is caused to reduce the stability by making the settlement of ground surface due to the over load. Thus, we try to make it stable by building EPS embankment construction which in our working place is one kind of the method of light embankment construction after excavating the original ground.

• 디지털산업정보학회논문지
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• 제5권3호
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• pp.175-184
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• 2009

We are entering into a era of enterprise computing that is characterized by an emphasis on broadband convergence, knowledge s haring, and calm services. Some people refer to this as the "ubiquitous" computing because its focus is on a high degree of connectivity between a company and its customers, suppliers, and channel partners. Ubiquitous computing technology, "RF" stands for "radio frequency"; the "ID" means "identifer". The tag itself of a computer chip and an antenna. The shortest metaphor is that RFID is like a bar-code but is read with an electromagnetic field rather than by a laser beam. Much has already been written about the use of RFID. But there is no has written about the use of RFID in the convention industry. Therefore this study have specific objectives as follows. 1. To give details on the use of RFID in convention. 2. To introduces the key concepts behind RFID technology. 3. To identify advantage & disadvantage of RFID technology using a BEXCO CASE study. 4. To study on ubiquitous convention using RFID and effective operation methods such as entrance identification system, session management, machine management, CRM management, visitor management, and contents management. This results provide into the current status of ubiquitous computing technology in convention industries. Specific advantages by using ubiquitous computing technology(RFID) are one-stop differentiate service, wireless internet service, use of visitor management system, entrance by tag, and U-logistics. On other side, disadvantages are security, stabilization of RFID system, higher price of RFID tag, and commercial scale. Convention by using of RFID technology is currently at an early stage. Convention company as BEXCO need to have the capabilities to adapt, to customize, to commercialize, and to modify technology to suit our circumstances.

• 한국해양학회지
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• 제28권1호
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• pp.35-46
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• 1993

알라스카만 명태 산란장에서의 해수의 성질과 해류의 흐름을 규명하기 위하여, 쉘 리코프 해협에서의 CTD 조사 결과와 해류계 자료가 분석되었다. 쉘리코프해협에서는 3개의 수괴가 구분되었다. 첫 번째 수괴는 Cook 내만으로부터 유래된 적은 양의 차갑고 염분이 낮은 ($<{\;}3^{\circ}C,{\;}<{\;}31.5\textperthousand$) 표층수로서 알라스카 반도 해안에 바짝 붙어서 남서쪽을 향하여 흐르고 있다. 둘째의 수괴는 알라스카 해안류 (ACC)의 가지로서 해협의 북종쪽 입구로 들어와 남서쪽을 향해 흐르며, 해협내에서는 중층과 표층의 대부분을 차지하고 있다. 해협의 가장 깊은 골의 상부층에 가장 빠른 흐름이 존재하며, 그들은 Semidi섬과 Chirikof섬 사이의 남서쪽 계곡을 통하여 해협에서 빠져나간다. 세 번째의 수괴는 비교적 느리고, 따뜻하고 염분이 높은 ($>{\;}5^{circ}C,{\;}>{\;}32\textperthousand$) 대륙사면으로부터 남서쪽 입구의 저층을 통하여 해협으로 들어온 저층수인데 이들은 북동쪽을 향해 흐르며 해협 저층의 대부분을 차지한다.

• 건축역사연구
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• 제6권2호
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• pp.23-40
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• 1997

The purpose of this thesis is a searching out the characteristics of Japanese dwellings implanted into Korea in the time of the rule of Japanese imperialism and its influences on Korean modern dwellings especially in the time of 1930's. At the early stage of the colonial time($1905{\sim}1919$), the central corridor type Japanese dwellings were implanted into Korea for the Japanese official residences. The central corridor type Japanese dwelling was an urban modern dwelling compromised between Japanese style and western style and distinguished by an outer-court type plan, Japanese entrance hall, central corridor and western style reception room. After the 1920's the central corridor type Japanese dwellings have spreaded itself and became a prototype of a modern dwelling in Korea. The characteristics of the central corridor type Japanese dwellings have influenced on the Korean high class dwellings and Korean architects' proposals for modern dwelling in the time of 1930's. By the implantation and spread of the central corridor type Japanese dwellings, Korean modern dwellings at the same time have affected and undergone transformation. The aspects of transformation were ; The outbreaking of the Japanese style entrance and central corridor, the transformation of MaDang from the inner court with a function of circulation into the outer court garden with plants and the transformation of Korean dwellings from the rural inner court type into the urban outer court type. The central corridor type Japanese dwellings implanted into Korea in the time of the rule of Japanese imperialism makes function as a precedent of a modern urban dwelling to Korean and makes Korean dwellings transform from the rural inner court type into the urban outer court type.

• 조명전기설비학회논문지
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• 제23권6호
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• pp.52-58
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• 2009

최근 건축구조물의 복잡화, 다양화로 인하여 화재발생시 유독가스의 심각성과 공간의 특수성으로 대형 참사가 발생될 위험이 더욱 커짐에 따라 인명피해와 직접적으로 연결되는 피난탈출에 있어서 조속한 대책 마련이 시급한 실정이다. 기존 방식의 고정식 단방향을 표시하는 피난유도등은 효율적인 인명 대피 및 구조가 이루어지지 못하기 때문에 화재 발생 시 빠른 피난이 가능하도록 화재감지기와 연동하여 위험에 처한 피난자들을 탈출시키고 화재의 발생위치를 정확히 파악하여 초기 진압할 수 있는 시스템 구축이 절실히 요구된다. 이러한 점에 착안하여 ID를 가지는 화재 감지기 및 수신반과 연동하여 화재가 발생하면 화재가 발생된 방향의 반대 방향으로 모든 유도등의 방향을 제어하여 안전한 비상출입구로 사람들을 유도시키고 화염 및 연기의 방향과 속도를 계산하여 포기진압 및 최적 대피로로 방향을 표시하는 인공지능형 방향성 유도등 개발에 본 연구의 목적이 있다.

• 한국수산과학회지
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• 제31권2호
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• pp.296-301
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• 1998

제주북방 남해안인 제주해협과, 동쪽인 대한해협 입구 해역, 그리고 이들 해협수가 혼합되어지는 해역에 대하여 1995년 5월 30일부터 6월 8일까지 해수의 물리 화학적 특성을 규명하기 위하여 조사하였다. 1) 한 정점에서 24시간 관측에 의한 수심별 수온과 염분의 변동폭은 표층에서 $1.8^{\circ}C,\;0.7\%_{\circ}$의 최대 변동폭을 보이고 있으며, 이러한 변동폭은 30m에서 $0.5^{\circ}C,\;0.5\%_{\circ}$로 낮아지고 있다. 그러나 70m 이심층에서는 변화 폭이 아주 미미하여 주야간 변동은 표층에서 30m층까지 나타난다고 할 수 있다. 2) 영양염류의 24시간 변동폭은 총 무기질소, 인산인, 규산규소 등이 주간보다는 야간에서의 농도가 높은 특징 을 보이고 있다. 3) 해역별 수온과 염분은 대마난류의 직접 영향원인 대한 해협입구해역이 가장 높았으며, 제주북방 제주해협이 가장 낮았다. 또한 두 수괴가 혼합되어지는 대한해협은 표층 수는 대한 해협입구 해역수의 영향을, 저층수는 제주해협 저층으로부터 영향을 많이 받고 있음을 알 수 있다. 4) 영양염류의 해역별 특성은 제주해협수와 대한 해협입구해역수가 만나 혼합되어지는 대한해협에서 가장 높게 나타나고 있는데, 이는 용존산소가 가장 낮게 나타나고 있는 것으로 보아 유기물 분해에 의한 영양염 무기화에 따른 산소소모와 영양염 용출에 의한 영향으로 판단된다.