http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Mg+Al<sub>2</sub>Ca 첨가 ADC12 (Al-Si-Cu) 합금의 미세조직, 인장 및 고주기 피로 특성
김영균,김민종,김세광,윤영옥,이기안,Kim, Y.K.,Kim, M.J.,Kim, Shae K.,Yoon, Y.O.,Lee, K.A. 한국소성가공학회 2017 소성가공 : 한국소성가공학회지 Vol.26 No.5
This study investigated the microstructure, tensile strength, and high cycle fatigue properties of ADC12 aluminum alloys with different $Mg+Al_2Ca$ contents manufactured using die casting process. Microstructural observation identified the presence of ${\alpha}-Al$, eutectic Si, $Al_2Cu$, and Fe-intermetallic phases. The increase of $Mg+Al_2Ca$ content resulted in finer pore size and decreased pore distribution. Room temperature tensile strength tests were conducted at strain rate of $1{\times}10^{-3}/sec$. For 0.6%Mg ADC12, measured UTS, YS, and El were 305.2MPa, 157.0MPa, and 2.7%, respectively. For 0.8%Mg ADC12, measured UTS, YS, and El were 311.2 MPa, 159.4 MPa, and 2.4%, respectively. Therefore, 0.8% ADC12 alloy had higher strength and slightly decreased elongation compared to 0.6% Mg ADC12. High cycle fatigue tests revealed that 0.6% Mg ADC12 alloy had a fatigue limit of 150 MPa while 0.8% Mg ADC12 had a fatigue limit of 160MPa. It was confirmed that $Mg+Al_2Ca$ added ADC12 alloy achieved finer, spherical eutectic Si particles, and $Al_2Cu$ phases with greater mechanical and fatigue properties since size and distribution of pores and shrinkage cavities decreased as $Mg+Al_2Ca$ content increased.
바다-$IV/I^2R$: 고차원 이미지 색인 구조를 이용한 효율적인 내용 기반 이미지 검색 시스템의 설계와 구현
김영균,이장선,이훈순,김완석,김명준,Kim, Yeong-Gyun,Lee, Jang-Seon,Lee, Hun-Sun,Kim, Wan-Seok,Kim, Myeong-Jun 한국정보처리학회 2000 정보처리학회논문지 Vol.7 No.2
A variety of multimedia applications require multimedia database management systems to manage multimedia data, such as text, image, and video, as well as t support content-based image or video retrieval. In this paper we design and implement a content-based image retrieval system, BADA-IV/I$^2$R(Image Information Retrieval), which is developed based on BADA-IV multimedia database management system. In this system image databases can be efficiently constructed and retrieved with the visual features, such as color, shape, and texture, of image. we extend SQL statements to define image query based on both annotations and visual features of image together. A high-dimensional index structure, called CIR-tree, is also employed in the system to provide an efficient access method to image databases. We show that BADA-IV/I$^2$R provides a flexible way to define query for image retrieval and retrieves image data fast and effectively: the effectiveness and performance of image retrieval are shown by BEP(Bull's Eye Performance) that is used to measure the retrieval effectiveness in MPEG-7 and comparing the performance of CIR-tree with those of X-tree and TV-tree, respectively.
의료용 표시기의 안전성 및 성능 평가를 위한 시험 항목 및 시험방법(안)연구
김영균,조승관,이태우,여창민,정병조,권영미,차지훈,허찬희,박기정,김동섭,김한성,Kim, Y.G.,Cho, S.K.,Lee, T.W.,Yeo, C.M.,Jung, B.J.,Kwon, Y.M.,Cha, J.H.,Hur, C.H.,Park, K.J.,Kim, D.S.,Kim, H.S. 대한의용생체공학회 2011 의공학회지 Vol.32 No.2
Tattooing is a performance for decorative and cosmetic marking by placing permanent ink into the skin. As the cultural meaning of tattoo in Korea is changing, the tattoo machines are widely spread n permanent cosmetic market. Though the use of the tattoo machine was increased, the evaluation standards of tattoo machine were not existed. Korea Food and Drug Association regulated the electrical and mechanical safety standards which were founded on the IEC 601-1 second edition. Also they regulated he biological safety standards which were derived from the ISO 10993 series, however, these general valuations of common medical device were insufficient for evaluating tattoo machine. We developed the standards of tattoo machine for safety and performance evaluation for tattoo machine by preliminary hazard analysis in ISO 14971. The evaluation criteria of tattoo machines are focused on the mechanical invasion. We suggested the additional evaluation items of the needle speed, length, vibration with general valuation criteria of common medical device. We anticipate that this research may be a primary stage to figure a standard regulation and evaluation for tattoo machine.
김영균,김수관,김경욱,엄인웅,Kim, Young-Kyun,Kim, Su-Gwan,Kim, Kyung-Wook,Um, In-Woong 대한악안면성형재건외과학회 2011 Maxillofacial Plastic Reconstructive Surgery Vol.33 No.3
An extraction socket was preserved and reconstructed using an autogenous tooth bone graft powder and block in two patients. The grafted site was healed 3 to 3.5 months after surgery. Implant treatment was successfully completed.
패키지 딜 방식의 해외 에너지자원 획득에 관한 플랜트EPC기업참여 촉진방안연구
김영균,문선애,문승재,이재헌,유호선,Kim, Young-Kyun,Moon, Sun-Ae,Moon, Seung-Jae,Lee, Jae-Heon,Yoo, Hoseon 한국플랜트학회 2009 플랜트 저널 Vol.5 No.2
Promoting policy to involve plant EPC companies for package deal has been studied to acquire overseas energy resources. The effectiveness of the package deal with the plant EPC companies has not been successful because the participation of the plant EPC companies is very rare. It is difficult for the plant EPC companies to join the package deal due to the lack of the fully responsible organization to support the plant EPC companies participating in a package deal. The followings are suggested as the ways to promote the participation of the plant EPC companies for package deal in this study; 1) financial support of the government for plant EPC companies 2) political support of the government for plant EPC companies 3) specialization of the advanced countries for public-private cooperation.
김영균,김기환,안창혁,임근우,박우찬,송병주,정상설,김정수,장은덕<SUP>1<.SUP>,이은정<SUP>1<.SUP>,Young Kyun Kim,M.D.,Kee Hwan Kim,M.D.,Chang Hyeok Ahn,M.D.,Keun Woo Lim,M.D.,Woo Chan Park,M.D.,Byung Joo Song,M.D.,Sang Seol Jung,M.D. 대한갑상선-내분비외과학회 2006 The Koreran journal of Endocrine Surgery Vol.6 No.2
Anaplastic thryoid carcinomas are very aggressive and lethal solid tumors; they sometimes show microscopic vascular invasions, but they rarely result in tumor thrombus in the internal jugular vein or in the other great veins of the neck. We encountered a 64-year-old woman with anaplastic thyroid carcinoma and a tumor thrombus that extended from the Lt. internal jugular vein to the innominate vein. Palliative total thyroidectomy, modified radical neck dissection and segmental resection of the Lt. internal jugular vein were done, along with removal of the intravascular tumor thrombus. We recommended postoperative radiotherapy and chemotherapy, but the patient refused additional treatments. We report here on this case for which we first experienced anaplastic thryoid carcinoma associated with tumor thrombus of the internal jugular vein. (Korean J Endocrine Surg 2006;6:102-105)
기계적 합금화 공정으로 제조된 Fe-14Cr Ferritic 산화물 분산 강화(ODS) 합금 강의 고온 산화 거동
김영균,박종관,김휘준,공만식,이기안,Kim, Young-Kyun,Park, Jong-Kwan,Kim, Hwi-Jun,Kong, Man-Sik,Lee, Kee-Ahn 한국분말야금학회 2017 한국분말재료학회지 (KPMI) Vol.24 No.2
This study investigates the oxidation properties of Fe-14Cr ferritic oxide-dispersion-strengthened (ODS) steel at various high temperatures (900, 1000, and $1100^{\circ}C$ for 24 h). The initial microstructure shows that no clear structural change occurs even under high-temperature heat treatment, and the average measured grain size is 0.4 and $1.1{\mu}m$ for the as-fabricated and heat-treated specimens, respectively. Y-Ti-O nanoclusters 10-50 nm in size are observed. High-temperature oxidation results show that the weight increases by 0.27 and $0.29mg/cm^2$ for the as-fabricated and heat-treated ($900^{\circ}C$) specimens, and by 0.47 and $0.50mg/cm^2$ for the as-fabricated and heat-treated ($1000^{\circ}C$) specimens, respectively. Further, after 24 h oxidation tests, the weight increases by 56.50 and $100.60mg/cm^2$ for the as-fabricated and heat-treated ($1100^{\circ}C$) specimens, respectively; the latter increase is approximately 100 times higher than that at $1000^{\circ}C$. Observation of the surface after the oxidation test shows that $Cr_2O_3$ is the main oxide on a specimen tested at $1000^{\circ}C$, whereas $Fe_2O_3$ and $Fe_3O_4$ phases also form on a specimen tested at $1100^{\circ}C$, where the weight increases rapidly. The high-temperature oxidation behavior of Fe-14Cr ODS steel is confirmed to be dominated by changes in the $Cr_2O_3$ layer and generation of Fe-based oxides through evaporation.
김영균,Kim Young-kyun 한국컴퓨터산업학회 2005 컴퓨터産業敎育學會論文誌 Vol.6 No.3
원격 모니터링 시스템(RMS; Remote Monitoring System)은 산업의 자동화 과정에 따라 다양한 분야에 적용되고 있으며, 단순한 상태 감시기능에서 멀티미디어 인터페이스 기반의 실시간 제어 기능을 갖는 복합 응용시스템으로 발전하고 있는 추세이다. 본 연구에서는 네트워크로 연동된 원격 사이트의 타겟 시스템(target system)을 클라이언트의 웹 브라우저에서 모니터링 할 수 있는 감시기능과 특정 동작을 제어할 수 있는 제어기능을 갖는 웹 기반 모니터링 시스템을 개발하였다. 개발 시스템은 클라이언트가 웹 브라우저에서 타겟 시스템의 상태를 실시간으로 감시할 수 있는 모니터링 기능, 클라이언트가 모니터링 화면에서 특정 모듈의 값을 설정함으로써 시스템의 상태를 제어하는 출력제어 기능, 클라이언트가 웹 환경에서 타겟 시스템의 환경 변수를 직접 설정 또는 변경할 수 있는 환경설정 기능, 네트워크에 연동된 화상카메라를 이용하여 타겟 시스템 주변 환경을 비디오로 감시할 수 있는 비디오 감시기능 등으로 구성되어 있다. 본 RMS는 웹 기반의 인터페이스로 타겟 시스템에 쉽게 접근 및 관리가 가능하며, 특히, 무인 자동화 설비 및 폐쇄 공간 등에서 유용하게 활용될 수 있다. The RMS(Remote Monitoring System) is generalized to adopt in many automatic system by progress of industrial and technical growth. RMS has been developed from simple status monitoring system to realtime control system with multimedia interface. This study is to design and develop monitoring system that client is able to monitor and control target system on web browser. The RMS is consist of 4 functional modes, which is monitoring mode, control mode, setup mode and video mode. Monitoring mode is to observe remote target system with realtime on web browser. Control mode is to change target system status in monitoring mode. Setup mode is to change system variable in control mode. Video mode is to monitor target system environment visually by web camera. This RMS is easy to access and manage target system, and so useful to monitor remote automatic system and closing site.