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OSGi(Open Service Gateway Initiative) 기반의 효율적인 서비스 번들 관리를 위한 SBM(Service Bundle Manager)의 설계 및 구현
김남훈,손민우,신동규,신동일,Kim, Nam-Hoon,Son, Min-Woo,Shin, Dong-Kyoo,Shin, Dong-Il 한국정보처리학회 2006 정보처리학회논문지 C : 정보통신,정보보안 Vol.13 No.6
Since different kinds of home network technologies coexist, seamless connections between different kinds of network protocols are essential for home computing environments. Several kinds of home network middleware have been developed and OSGi(Open Service Gateway Initiative) was initiated mainly for interoperability support with service distribution between various middleware environments. Framework, OSGi service platform, has weaknesses of passive service bundle management, user management and device management. Therefore, this paper resolves passive management parts which are critical weaknesses of OSGi Specification Version 3 and proposes SBM (Service Bundle Manager) to effiently manage various service bundles. Additionally, we verify practical effects of SBM through experiments. 현재 여러 종류의 홈 네트워크(home network) 기술들이 존재하고 있으며, 단일화된 홈 컴퓨팅(home computing) 환경을 위해서는 서로 다른 네트워크 프로토콜간의 연동이 필수적이다. 이를 위하여 여러 종류의 홈 네트워크 미들웨어(home network middleware)가 개발되었고 특히 OSGi (Open Service Gateway Initiative)는 다양한 미들웨어 환경 사이의 서비스 상호연동을 제공하기 위해 제안되었다. 그러나 OSGi의 실행환경인 프레임워크(framework)는 수동적으로 서비스 번들(service bundle), 사용자 및 장치 관리 등을 수행하는 취약점을 가지고 있다. 본 논문에서는 사용자들의 편의성을 위해 수동적으로 관리되는 부분들의 문제점을 개선하고자 한다. 이를 위하여 자동화 서비스와 효율적인 서비스 번들의 관리를 위한 SBM (Service Bundle Manager)의 구조를 제안하고, SBM을 구현하여 SBM의 실효성을 검증하였다.
망간황화물이 Porcelain의 표면층 밀도와 색상변화에 미치는 영향
김남훈,박태균,김경남,Kim, Nam-Heun,Park, Tae-Gyun,Kim, Kyung-Nam 한국재료학회 2021 한국재료학회지 Vol.31 No.11
This study investigated the reaction between clay and Mn. Mn was coated using a manganese sulfate on porcelain plate and sintered from 1,100 ℃ to 1,250 ℃. The body begin to shrink around 950 ℃ with the increase in temperature and rapidly progressed after 1,100 ℃. Shrinkage of celadon body was performed at a lower temperature than for other substrates. Quartz, kaolin, and feldspar were the main crystalline phases of the starting materials, but they became mullite and crystobalite during the firing process, and some formed amorphous glass. When manganese sulfate was applied and fired, manganese oxide was fused, and some manganese oxide reacted with the substrate to show a dense microstructure different from that of the substrate; the substrate had pores. The manganese coated porcelain fired at 1,200 ℃ had L<sup>*</sup> values of 55.25, 36.87, and 37.13 for the white ware, celadon body, and white mixed ware, respectively; with a<sup>*</sup> values of 4.63, 3.07, and 2.15, and b<sup>*</sup> values of 7.93 and 3.98, it was found to be 3.42. This result indicated that the color of the surface was affected during firing by the chemical reaction between the substrate and manganese.
김남훈,이용성,Kim, Nam-Hoon,Lee, Yung-Sung 대한기계학회 1996 大韓機械學會論文集A Vol.20 No.12
In order to clarify the effects of nonmetallic inclusion contents insteels (SM45C & SCM440) on the tool life, cutting experiment was performed under various cutting conditions. Tool life, cutting force, roughness of machined surface and cutting mechanism are examined on these two kinds of steel. The following conclusions were obtained from the analysis (1) Cutting force of the steels was not affected by chemical component and nonmetallic inclusion. (2) If the rate of amount, Ca/S has a value grater than about 0.2 and addition of less amount of Al, Mn, tool wear of tips decreasesinturning. (3) It is also proved that higher contents of nonmetallic inclusion improve roughness of the surface. (4) Less amount of Ca, higher amount of S, Mn and Al improve the chip breakability.
유도 결합 플라즈마를 이용한 백금 박막의 건식 식각시 가스 첨가 효과
김남훈,김창일,권광호,장의구,Kim, Nam-Hoon,Kim, Chang-Il,Kwon, Kwang-Ho,Chang, Eui-Goo 대한전기학회 1999 전기학회논문지C Vol.48 No.6
The highest etch rate of Pt film was obtained at 10% $Cl_2$/90% Ar gas mixing ratio in our previous investigation. However, the problems such as the etch residues(fence) remained on the pattern sidewall, low selectivity to oxide as mask and low etch slope were presented. In this paper, the etching by additive $O_2$ gas to 10% $Cl_2$/90% Ar gas base was examined. As a result, the fence-free pattern and higher etch slope as about 60$^{\circ}$was observed and the selectivity to oxide increased to 2.4 without decreasing of the etch rate $1500{\AA}$/min. XPS surface analysis proved that a only little $O_2$ gas removes the Pt-CI compounds as residues on the etched surface.
Uniformity and Sheet Resistance of Flat Polysilicon by Experimental Approach
김남훈,Min-Ho Kim,Eui-Goo CHANG,Jong-Heun LIM,Sang-Yong KIM 한국물리학회 2004 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.45 No.3
The requirement for uniform polysilicon resistance for devices that use polysilicon as resistors has increased. Among the several poly-deposition processes, the at-polysilicon process is known to be the most eective process to improve the uniformity of polysilicon resistance. In this paper, the atpolysilicon process was evaluated to improve the polysilicon-resistance uniformity for devices using polysilicon for resistors. The results from the at-polysilicon process showed improved thickness uniformity, compared with those for normal-temperature tilted polysilicon, and improved 1 sheetresistance uniformity. The temperature tilted normal polysilicon with single injector produced a 6.35 % sheet resistance uniformity (1), while the at polysilicon with 3 injectors resulted in a below-0.40 % sheet-resistance uniformity (1). By using the experimental data, correlation analysis between sheet resistance and thickness was performed.
전악 발치 환자에서 캠퍼그나 트레이를 적용한 즉시의치 수복 증례
김남훈,김종은,오경철,정문규,문홍석,Kim, Nam-Hoon,Kim, Jong-Eun,Oh, Kyung Chul,Chung, Moon-Kyu,Moon, Hong-Seok 대한치과보철학회 2017 대한치과보철학회지 Vol.55 No.3
An immediate complete denture is considered as restoration for lost natural teeth, which is fabricated following the extraction of the remaining teeth. Current esthetics and function can be retained by using immediate denture without edentulous period. However, the major disadvantages of immediate denture relate to the difficulties associated with taking accurate definitive impression and predicting the results of immediate denture. In this case report, the Campagna tray technique was used to take the final impression in a 49-year-old male patient presented with all remaining teeth diagnosed as hopeless teeth. Surgical templates were used for alveoloplasty after extraction. The immediate complete dentures were then delivered. The clinical assessments of immediate dentures showed good esthetic and functional outcomes. The patient showed high level of satisfaction. 잔존 자연치의 발치가 필요한 환자에서 즉시의치의 제작을 고려해 볼 수 있다. 즉시의치를 장착함으로써 환자가 무치악으로 지내는 기간 없이 심미 및 기능을 회복해줄 수 있는 장점이 있지만 인상 채득이 어렵다는 점, 장착 후의 결과를 예측하기 어렵다는 단점이 있다. 본 증례에서는 잔존 자연치를 모두 발치해야 하는 49세 남환에서 캠퍼그나 트레이를 이용하여 최종 인상을 채득하고 수술용 형판을 이용하여 발치 및 치조골 성형술을 시행한 후, 즉시의치를 제작 및 장착하여 심미적, 기능적으로 만족할 만한 치료 결과를 보였기에 이를 보고하고자 한다.
자궁경부 악성 림프종의 경부-질 도말소견 - 1 증례 보고 -
김남훈,박찬금,고영혜,박문향,이중달,Kim, Nam-Hoon,Park, Chan-Kum,Ko, Young-Hyeh,Park, Moon-Hyang,Lee, Jung-Dal 대한세포병리학회 1995 대한세포병리학회지 Vol.6 No.1
The uterine cervix is an uncommon site of primary non-Hodgkin's lymphoma (NHL). Although the cytologic findings of NHLs are well known, most cervicovaginal smear of uterine NHLs give lower diagnostic yield than common epithelial malignancy because abnormal cells do not appear in the sample in the absence of surface ulceration. Herein, we describe cytologic findings of a case of uterine cervical NHL which was initially diagnosed by cervicovaginal smear. The tumor cells were relatively uniform, isolated, large-sized with scanty cytoplasm and round or indented nuclei. The nuclei had stippled chromatin and small nucleoli. Histologically and immunohistochemically the tumor was proven to be large cell lymphoma of T-cell lineage.