• 한국자기학회지
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• 제22권3호
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• pp.97-102
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• 2012

본 논문은 전선을 통하여 전력을 전달하는 일반적인 전력전송방식이 사용될 수 없는 환경에서 무선으로 전력을 전송하는 비접촉 전력전송기기 개발에 관한 것이다. 전력전송 방식은 자기공명방식보다 큰 전력을 전송하기에 적합한 전자기유도방식을 이용 하였다. 전력전송기기의 설계 방법은 전기장하(Electirc loading)와 자기장하(Magnetic loading)의 비율로 코어와 코일을 설계하는 장하분배법(Loading Distribution Method)으로 설계 하였고 유한요소법(Finite Elements Method)으로 기기에 발생하는 전자기장을 해석하여 설계한 전력전송기기의 적합성을 판단하고 적정한 설계치를 보정하였다. 본 연구를 통하여 개발된 전력전송방식은 비접촉식으로 수 mm 거리를 가지는 근거리에서 무선으로 전력을 전송하기에 적합함을 보였다.

• 인터넷정보학회논문지
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• 제3권3호
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• pp.55-66
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• 2002

본 논문은 휴대폰에 소프트웨어를 추가하지 않고 카메라에서 실시간으로 캡쳐한 영상을 휴대폰으로 전송하는 방법을 제안하고, 실험한 결과를 제시하였다. 본 논문에서는 실시간 영상을 휴대폰으로 전송하는 방법으로 WAP 풀 기반의 영상전송 방법과 WAP 푸시 서비스 기반의 영상 전송 방법에 대하여 제안하고, 실시간 영상을 WBMP 이미지로 변환시에 문제가 되는 임계값 설저을 영상의 히스토그램을 사용하여 전체 픽셀 값들에 대한 평균값으로 사용한 방법을 제안하였다. 이 방법을 구현하기 위해서 스트림 엔진과 연동한 메커니즘으로 카메라에서 캡쳐된 영상을 WBMP 포맷으로 변환하는 영상변환 필터(WBMPFlter)를 구현하고, 무선인터넷상에서 영상을 전송할 수 있는 영상전송 미디움(WrelessMedum)을 구현하였다.

• 한국전자통신학회논문지
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• 제7권1호
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• pp.21-26
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• 2012

본 논문에서는 HSDPA 상용 무선 네트워크 환경을 이용하여 실시간으로 영상 데이터를 전송하고 위치를 인식하는 시스템을 제안한다. 이번 연구에서는 MPEG4를 기반으로 하는 새로운 영상 압축 알고리듬을 개발하여 130 kbps 대역폭과 30 fps의 QVGA 영상 전송률을 실현하였다. 이동 차량에 탑재할 목적으로 본 시스템을 소형화하고 전력 효율을 좋게 하였으며 외란에도 견실하게 설계하였다. 시스템을 실제 구동시켜 얻은 동영상 캡쳐 화면과 위치 인식 데이터를 제시하여 개발한 시스템의 성능을 검증한다. 본 시스템은 순찰차 및 대중교통 시스템에 적용하는 것을 목표로 하고 있으며 유선 전송이 어려운 오지 환경에서 실시간으로 영상정보를 획득하고자 할 때도 적용 가능하다.

• 대한방사선기술학회지:방사선기술과학
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• 제24권2호
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• pp.71-75
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• 2001

As the adoption of PACS and hospital information system among university hospitals and hospital level institutions grows bigger, the need of sharing and transferring medical information among medical institutions is rising. For the medical information, which is saved in the hospital medical system, to be transferred within the same hospital, domestic, or foreign medical institutions, a standard protocol is necessary. But realistically, most of the domestic hospitals do not abide by H7L which is the HIS standard and so, information transferring is not possible as of present. As such, the purpose of this research is to implement the information between HIS and PACS to an international standard by constructing HL7 messages through HL7 Interface. which will eventually make possible information transferring between different hospitals. Our research team has developed a method which will make the PACS equip hospitals that do not follow HL7 standard which will make possible to transfer information between HIS and PACS through HL7 Message. By constructing message files, which follow the form of HL7 Message in the HL7 Interface, they can be transferred to PACS through the ftp protocol. The realization of the HIS/OCS Interface through HL7 enables data transferring between domestic and foreign medical institutions possible by implementing the international standard in the PACS and HIS data transferring process. The HL7 that our research team has developed made patient data transfer between medical institutions possible. The Interface is for a specific system model and in order for the data transfer between different systems to be realized, interfaces that are fit for each system must be needed. If the interface is improvised and implemented to each hospital's information system, the data sharing among medical institutions can be broadened.

• 전기학회논문지
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• 제59권4호
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• pp.733-739
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• 2010

We developed to have an automatic transferring function of a two-motors-driven electrical scooter for women or seniors to use conveniently it since it has been previously to operate it in manual only. The function would be implemented by using master and slave micro-control units(MCU) in the system with the given input and output signals. The simulation and test of the system results show that the transition conditions of either higher accelerating speed and/or higher torque are demonstrated at the worst conditions, which means that the transition points might be set either at the 70% of accelerating speed or from the 100% of load torque. The developed equipment is very useful and has good performance in the real test and would be used for top brand and might be applicable to any other types of green cars.

• 소음진동
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• 제11권2호
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• pp.354-364
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• 2001

The vibration induced by high speed train running on rail is dealt with as an environmental problem. The train induced vibration is characterized by moving loads at specific frequencies and soil conditions. In fact, it is predicted that the vibration sources are involved the wheel distance, number of cars, speed of operation, drift of rails, structural born vibration, etc. In this paper the characteristics of transferring vibration induced by the high-speed train in operation is discussed. Field measurements was conducted at region from Chungnam Yungj So-jung-myan to Chungbuk Chungwon hyun-do-myun. In the near future. these data will be used as the fundamental data for establishment of the countermeasure for vibrational reduction of high speed train using the results of the field measurements and quantitative prediction of the vibration level

• 통상정보연구
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• 제8권4호
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• pp.277-300
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• 2006

In the initial stage of a national economic development of China, the family business takes enterprise's organizational form ruling position. The private enterprise of China is mainly family business; the family makes the mainly proprietorship in other words. Even in the private enterprise after developing, 70 percents are managed as a family This paper start to study the Transferring Power Patterns in family business using the Company's Life Circle Theory and some other correlative theories. Based on the Transporting Power Model, the paper gives a comprehensive explanation for the choice of transferring power pattern in the family business of China.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 추계학술대회 논문집
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• pp.1601-1606
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• 2004

Nowadays, the bus system of a metropolitan area is improving very fast. According to the bus, commuter railways increase their competitive power. For this, trains get the mobility increasing, effective transferring system and unified information service. For the mobility increasing, commuting railway must be faster by flexible train diagram and facilities improvement. And finally, optimal commuter train, 'Liner' is needful. And for effective transferring system, it is necessary that railway station and transferring center of a city be merged. And it is needful that direct management bus by railway company and unification fare system on metropolitan region. Next, for information service system improving, the commuting railway station must be regional transportation hub at first. And it is needful that unified line map of trunk line transportation systems and regionally collective transportation system information book. Therefore, metropolitan commuting railways compete with trunk line bus and cooperate with feeder line bus, and can make optimal metropolitan public transportation systems.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2007년도 추계학술대회 논문집
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• pp.99-100
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• 2007

Transferring patterns from mold to PDMS stamp is very useful technology in micro-fabrication, complex and three-dimensional structures. First experimentation, mold's patterns wens transferred to PDMS stamp. Comparing with PDMS stamp and Mold, patterns were transferred about 97.9%. Second experimentation, PDMS stamps were made several times by only one mold, scale and distance of transferred patterns were uniform about 89.3%. We proved that transferring patterns from mold to PDMS stamp is accurate. The uniformity of stamps is the same after mold was used several times. Transferring patterns from mold to PDMS stamp has uniformity and accuracy, it will be useful technology.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
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• pp.702-707
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• 2002

Three periods of land-use maps of the Suomo Basin were drawn from topographic maps (1970a) and Landsat TM/ETM images (1986a and 1999a). The area of each kind of land use was calculated from the three maps. From 1970 to 1999, the area of forestland decreased 17%, the area of sparse forestland increased 8%, and the area of grassland increased 10%. The transferring trend of the land-use is that forestland turned into sparse forestland and brush land, and the brush land degenerated into grassland based on the transferring matrixes from 1970 to 1986, and from 1986 to 1999. According to the local government record and statistical data, forest cover rate had been increasing from 1970 to 1998, but the amount of growing stock had been declining. From 1957 to 1998, the amount of growing stock declined from 423m$^3$/ha to 177m$^3$/ha.