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이종주,김남주,정호경,곽상인,Jong Joo Lee,Nam Ju Kim,Ho-Kyung Choung,Sang In Khwarg 대한안과학회 2008 대한안과학회지 Vol.49 No.2
`Purpose: To investigate the clinical features and treatment results in eyelid sebaceous gland carcinoma. Methods: A retrospective chart review was conducted on 28 adult patients that were histopathologically diagnosed with eyelid sebaceous gland carcinomas from April 1981 to March 2005 in Seoul National University Hospital. Results: Among the 28 cases of eyelid sebaceous gland carcinoma, 9 cases (32.1%) had evidences of local invasion or metastasis at the initial diagnosis. Surgical resection was performed in the 27 cases (96.4%), and conjunctival cryotherapy, surgeries, such as maxillectomy, parotidectomy, and neck dissection, or radiation therapy were combined in cases of local invasion or metastasis. In the 19 cases of the localized tumor group, there were 2 cases (10.5%) of recurrence after an average 30 months of follow-up. The locally invasive tumor group (2 cases) showed 1 case of recurrence after 12 months of follow-up. In the 7 cases of the distant metastasis tumor group, tumors in 3 cases (42.9%) could not be controlled, and 3 cases (75.0%) showed recurrence after an average 45 months of follow-up. Conclusions: Eyelid sebaceous gland carcinomas with local invasion or metastasis afford higher potential for treatment failure, so early diagnosis is crucial. Because recurrence is possible, even when the tumor is completely removed, the extent of the tumor should be examined thoroughly and microscopically.`
마이크로웨이브-질산용출과자력/수력선별에의한자연금및자철석의선별효과
이종주,박천영,Lee, Jong-Ju,Park, Cheon-Young 대한자원환경지질학회 2020 자원환경지질 Vol.53 No.2
본 연구는 마이크로웨이브-질산용출과 자력/수력선별을 이용하여 정광으로부터 자연 금을 회수하는 것을 목표로 하였다. 마이크로웨이브-질산용출실험을 통해 용출용액으로부터 불용성-잔류물을 여과하였다. 용출용액을 원자흡수분광기(AAS)로 분석한 결과 Au는 전혀 용출되지 않은 것을 그리고 불용성-잔류물을 후방산란전자영상(BSE)으로 관찰한 결과 자연 금이 단체분리된 것으로 확인되었다. 불용성-잔류물을 자력/수력선별 하여 자성광물과 비-자성광물로 선별하였다. 자성광물에서 자철석이 회수되었고, 비-자성광물을 다시 수력선별한 결과 자연 금이 회수되었다. 자연 금은 X선 회절 분석(XRD)과 BSE 영상에서 확인되었다. This study aimed to recover native gold from the concentrate using microwave-nitric acid leaching and magnetic/hydro separation experiments. The insoluble-residue was filtered from leaching solution through microwave-nitric acid leaching experiment. As a result of the atomic absorption spectrometer(AAS) analysis of the filtered leaching solution, it was discovered that Au content was not eluted at all and it was observed from the back scattered electron(BSE) image that native gold was liberated in the insoluble-residue. When magnetic/hydro separation experiments were applied for the insoluble-residue, magnetic and non magnetic minerals were separtated from insoluble-residue. Magnetite was recovered from the magnetic minerals and as a result of applying the hydro separation experiment again for the non-magnetic mineral, native gold was recovered. The native gold was identified through the X-ray diffraction(XRD) analysis and BSE image.
이종주,김종현,황상원,김남주,정호경,곽상인,Jong Joo Lee,Jong Hyun Kim,Sang Won Hwang,Nam Ju Kim,Ho Kyung Choung,Sang In Khwarg 대한안과학회 2006 대한안과학회지 Vol.47 No.4
Purpose: Orbital hematic pseudocyst is the localized accumulation of organized blood-breakdown products within a fibrous capsule, and is known to be typically located subperiosteally. We report a case of orbital hematic pseudocyst in the intraconal space. Methods: A 51-year-old man visited our clinic, complaining of injection and bruise of his right eye one month before. On the orbit MRI, a mass assumed to be benign was detected in the intraconal space of his right orbit. After several months of follow-up, a decrease of visual acuity and visual field defect were detected in his right eye. Excision of the mass was done through lateral and medial orbitotomy. Results: Histologic examination showed the accumulation of blood-breakdown products within a fibrous capsule, and the mass was diagnosed as a hematic pseudocyst. Conclusions: When a well-demarcated and slowly growing mass is detected in the intraconal space of the orbit, the possibility of hematic pseudocyst should be considered.
저비용의 RAID 저장장치를 이용한 고속 테이터 수신저장 시스템의 개발 및 구축
이종주(Jong-Ju Lee),서인호(In-Ho Seo),박홍영(Hong-Young Park),오대수(Dae-Soo Oh),정태진(Tae-Jin Jung),박종오(Jong-Oh Park) 한국항공우주학회 2008 韓國航空宇宙學會誌 Vol.36 No.10
본 논문에서는 고비용의 엔트프라이즈급 RAID 저장장치를 저비용의 RAID 저장장치로 대체하고 인공위성 연구센터에서 개발한 데이터 수신카드를 이용하여 고속 데이터 수신저장 시스템을 구축하였다. 350Mbps로 수신되는 데이터를 처리하기 위해서 S-ATA2 방식의 하드디스크 3개와 자체 제작한 성능 시험 소프트웨어를 이용하였다. 성능 시험 결과 79MB의 속도로 RAID에 저장할 수 있음을 확인하였다. This paper describes the establishment result of high speed data receIVIng and archiving system (HDRAS) using data receiving card(DRC) developped by SaTReC and low cost RAID (Redundant Array of Independent Disks) storage instead of expensive enterprise RAID storage. We used three 5-ATA2 type hard disks and performance test program developped by SaTReC to receive and save data at 350Mbps. Finally, we verified that the HDRAS using low cost RAID storage has a capacity to process received data at 79MBjs(632Mbps).
소프트웨어업계 근로자성 판단기준이 고용가능성을 조절로 다중몰입에 미치는 영향에 관한 연구
이종주 ( Lee Jong Ju ),추현호 ( Choo Hyun Ho ),오인하 ( Oh In Ha ),서철승 ( Seo Cheol Seung ) 한국경영공학회 2020 한국경영공학회지 Vol.25 No.4
Purpose The purpose of this study is to clarify the effect of software freelancers on multiple commitments according to the Supreme Court's criteria for determining worker, and to find the moderating effect of employability. Methods The research method was empirical analysis through a questionnaire of 190 freelancers. Results The results of the study revealed that when freelancers are recognized as workers with high human dependency, there is a positive(+) relationship with job commitment, and when recognized as workers with high economic dependency. In addition, it was found that internal employability demonstrates the moderating effect between workers and organizational commitment Conclusion The conclusion of this study will help to improve the quality of project outcomes by presenting a plan to increase immersion in the case of companies hiring software freelancers.
이종주(Jong-Ju Lee),서인호(In-Ho Seo),이철(Chol Lee),오치욱(Chi-Wook Oh),김경희(Kyung-Hee Kim),박성옥(Sung-Ok Park) 한국항공우주학회 2007 韓國航空宇宙學會誌 Vol.35 No.4
본 논문에서는 과학기술위성 2호용으로 개발된 탑재체데이터 수신시스템(Data Receiving Equipment, DRE)을 소개하고 개발된 준비행모델(Proto Flight Model, PFM)에서의 기능 및 성능 시험 결과를 제시 한다. 탑재체데이터 수신시스템은 X 대역 수신기, 데이터 합성장치(Data Combine Equipment, DCE)와 수신 저장 컴퓨터(Receiving and Archiving Computer, RAC)로 구성되어 있다. DCE는 I&Q 신호 합성기와 ECL 신호 분배기로 구성 된다. RAC은 데이터 수신 카드(Data Receiving Card, DRC)와 소프트웨어인 ST2RAS(STSAT-2 Receiving and Archiving Software, ST2RAS)로 구성된다. X 대역 수신기를 통해서 수신된 I, Q 데이터는 DCE를 통해서 I&Q 데이터로 합성된다. 합성된 데이터는 데이터 수신 카드를 통해서 수신 저장 컴퓨터의 RAID(Redundant Array of Inexpensive Disk)에 저장되고, 이 데이터는 ST2RAS의 전처리를 통해서 위성의 상태 정보와 탑재체 정보로 분리된다. 탑재체데이터 수신시스템에 대한 기능 시험과 열진공 시험을 통해서 10??의 BER(Bit Error Rate) 요구사항을 만족하는 결과를 확인하였다. This paper describes the design and implementation of PFM(Proto Flight Model, PFM) of DRE(Data Receiving Equipment, DRE) for Science and Technology Satellite 2(STSAT-2) and the results of integration performance test. DRE components are X-band receiver, DCE(Data Combine Equipment, DCE) and RAC(Receiving and Archiving Computer, RAC). DCE consists of I&Q data combiner and ECL signal distributor. RAC consists of DRC(Data Receiving Card) and ST2RAS(STSAT-2 Receiving and Archinving Software). X-band receiver receives 10Mbps QPSK I, Q satellite data and sends the data to DCE. DRC stores the I&Q combine data from DCE to RAID. The pre-processing program sorts and stores to satellite status data and payload data. The performance of DRE in the functional and space environments test satisfies the requirements of STSAT-2.