電子産業의 實態分析 및 競爭力 提高戰略

鄭俊秀,尹英得,方鎬烈,金基錫,金正敎 釜山大學校 經營 經濟 硏究所 1990 經營 經濟 硏究 Vol.9 No.1

金雀根 煎湯液이 家兎血壓에 미치는 影響

鄭榮穆,辛民敎 대한본초학회 1987 大韓本草學會誌 Vol.2 No.1

In this study the effect of Radix Caraganae Water Extract (R.C.W.E.) on the blood pressure of the rabbit was investigated. The results of experiment are as follows : 1. Blood pressure manifested gradual response by fall 8.80±1.74, 17.86±3.11, 26.67±3. 46㎜Hg in proportion to the administration of 0.1, 0.3 and 1.0㎖/㎏ of R.C.W.E. 2. Depressor responses to R.C.W.E. were not blocked by Atropine. 3. Depressor responses to R.C.W.E. were not blocked by Propranonol. 4. Depressor responses to R.C.W.E. were not blocked by Hexamethonium. 5. Depressor responses to R.C.W.E. were not blocked by Pheniramine maleate and Cyproheptadine.

가교 폴리스티렌 입자가 불포화 폴리에스테르 수지의 수축저감에 미치는 효과

이기중,이상영,인교진 강원대학교 부설 석재복합신소재 제품연구센터 2000 석재연 논문집 Vol.5 No.-

본 연구에서는 불포화 폴리에스테르 수지의 수축저감제의 용도로 가교 폴리스티렌 입자를 제조하고, 불포화 폴리에스테르의 부피죽소에 미치는 영향 및 그 물성을 연구하였다. 가교 폴리스티렌 입자의 가교체로서 divinylbenzene을 사용하였으며, 스티렌 모노머에 대하여 0wt%, 1wt%, 3wt%의 비율로 첨가한 후 유화중합방법으로 입자를 제조하였다. ASTM 규격을 응용한 linear shrinkage method를 이용하여 길이변화율 및 부피수축율을 측정하였다. 수축저감효과는 1wt%의 가교체를 사용하여 제조한 폴리스티렌 입자가 가장 우수하였으며, 가교제가 3wt%함유된 입자의 경우 1wt%에 비해 수축저감 효과가 낮게 나타났다. 또한 수축저감 메카니즘을 규명하기 위하여 SEM, TEM을 이용하여 구조물성을 보았다. The objective of this study is to investigate the effects of low profile agents(LPAs) on volume shrinkage of unsaturated polyester(UP) resins. The properties of UP resins containing LPAs is also studied. Emulsion polymerization was performed to synthesis cross-linked PS particles that contain 0, 1, 3 wt% divinylbenzene as a cross-linking agent. Length change and volume shrinkage of the cured resin was measured by linear shrinkage method after small modification of ASTM D2566-86 standard. Three types of LPAs e.g., solution type LPA, particle type commercial LPA, and particle type LPA prepared in this study were used. the mixtures of UP resin with each LPA were transferred into a mold and cured at 150℃ for 3 minutes in a hot press. the UP resins containing particle type LPA with 1wt% cross-linking agent showed the best anti-shrinkage effect in this study. However, anti-shrinkage effect of the UP resins decreased when the content of cross-linking agent in LPA increased to 3wt%. This effect was related with the diffusion ability of solvent molecules into the particles. And Morphology of the cured UP resins was investigated by SEM and TEM. Microvoids and phase separation morphology that are with anti-shrinkage effect were observed in the electron micrographs.

배달 미니 게임 개발:"최고의 웨이터를 꿈꾸며"

김정훈,정한교,김영옥,김중곤,박정윤,윤진성,김경식 호서대학교 반도체제조장비국산화연구센터 2001 반도체장비학술심포지움 Vol.2001 No.-

본 미니 게임은 웨이터라는 직업을 모티브로 하여서 남녀노소 누구나 재미를 느낌과 동시에 기억력 향상시켜 주는 게임제작이라는 목적아래 제작되었다.본 논문에서는 이 게임의 제작과정을 기술하고자 한다.이 게임은 제3회 AGC(한국 아마추어 게임제작 공모전)에서 우수 작으로 선정되었다.

Stage II B형 골육종에 대한 술전 항암화학요법 및 수술적 치료 결과

김정만,우영균,김형민,김훈교,이승구,강용구 가톨릭중앙의료원 가톨릭암센터 1997 암심포지움 Vol.- No.1

Recent advances in imaging techniques, surgery and combination anti-cancer chemotherapy have brought high survial rates in osteosarcoma. To investigate the survival rate, local recurrence and complications in treatment, we analysed 25 osteosarcoma cases who had been treated with preoperative neo-adjuvant chemotherapy, surgery and post operative chemotherapy at Department of Orthopedic Surgery, Catholic University. From May 1988 to April 1995, 42 cases of stage IIB osteosarcoma were admitted in Department of Orthopedic surgery. Among them, 17 cases who didn't follow our treatment guidance were excluded in this study. The average age were 19 years. There were 21 males and 4 females. The involved sites were 4 humerus, 10 femur, 10 tibia and 1 talus. Eleven cases had received intra-arterial cisplatin and intravenous adriamycin chemotherapy, and 7 T-10 protocol and 7 intravenous ifosfamide, ADR, methotrexate, cisplatin. Among twenty-three cases were treated with limb salvage surgery, and 2 amputation. The average follow-up was 35 months(3-82). There were 14 cases of continuous disease free, 9 cases of died of desease, 1 case of alive with disease, and 1 case of no evidence of disease at final follow-up. There were three cases of local recurrence at 6,8 and 12 months after operation. The Estimated kaplan-Meier's 5 year survival rates for all, ADR-cisloatin group, T-10 protocol group, and ifosfamide regimen group were 66%, 73%, 44% and 72%, respectively.

IMT-2000 망에서의 Layered Cell 전송 성능해석 모델

이영교,정해원,최충열,조성준 한국항공대학교 1997 論文集 Vol.35 No.-

본 논문은 ATM 기반의 layered 셀 구조를 적용한 Mobile Trunking에 사용되는 AAL type 2 프로토콜에 대해 설명했다. AAL type 2는 지연에 민감한 어플리케이션에 있어서 길이가 짧고, 패킷 길이가 변동하며, 저속도인 데이터 전송에 대한 대역폭 효율을 제공한다. 본 논문에서는 짧은 길이의 패킷에 대한 프레임 구조와 이를 하나 또는 그 이상의 ATM셀에 다중화 시키는 방식과 전송에러를 복구하는 기능 등에 대해서도 설명했고, 통계적 다중화의 효율, 지연, 채널전송효율 등을 해석하기 위한 큐잉 모델도 제안했다. 그리고, 미니셀 패킷화 지연 및 layered셀로 다중화되는 미니셀의 다중화 효율 등을 산출했고, layered셀 구조를 사용할 경우 예측되는 전송효율을 알아보았다. 여기서 전송속도는 ATM기반의 45Mbps에서 155Mbps사이의 경우를 고려하였다. 전송효율의 관점에서는 layered셀 방식이 고정 길이 셀 방식보다 효율적임을 알 수 있었다. 끝으로, 이를 국내 IMT-2000환경에 적용하기 위한 성능해석 모델과 파라미터를 제시하고 트렁크 용량을 해석했다. In this paper, we explaned the protocol of AAL type 2 used in the Mobile Trunking which has the layered cell structure based on ATM. These AAL type 2 provides the bandwidth-efficient transmission of low-rate, short, and variable length packets in delay sensitive applications. This paper covers the frame structure of the short legnth packets, the packing of those into one(or more) ATM cells, and the mechanisms to recover from transmission errors. Also, we proposed queueing model to analyse the efficiency of statistical multiplexing, delay time, channel transmission efficiency. And we calculated short cell packetization delay and short cell multiplexing into layered cells, and measured transmission efficiency to predict the layered cell structure schemes. Here we set the transmission line speed(trunking) at the between 45Mbps to 155Mbps, which are the future services bsed on ATM. From the viewpoint of transmision efficiency, layered cell shcemes is revealed to be more useful than fixed length cell schemes. Finally, we applied the proposed queueing model to the domestic IMT-2000 systems and we analysed the performance of trunk capacity.

동종 조혈모세포이식 후 발생한 치명적 홍역 폐렴 1예

백창렬,이동건,최정현,정현화,조유경,박훈준,이승훈,박윤희,이교영,민우성,김춘추,신완식 대한감염학회 2001 감염 Vol.33 No.4

As a result of the enlarging pool of unvaccinated children and young adults, there has been an increase in measles in our countries. In these situation, it has been reported that measles associated pneumoinia is easily complicated with fatal respiratory failure, espycially in immunocompromised patients. Herein we report the case of lethal measles pneumonia after allogenic hematopoietic stem cell transplantation in adults proven by autopsy. Recently, one case of measles was encountered in 39-year-old female patients after allogenic bone marrow transplanted case (chronic myelogenous leukemia), who progressed into interstitial pneumonia pattern, despite treatment including antibiotics, immunoglobulin. The patient died of giant cell pneumonia compatible with that of measles which was comfirmed in the section of necropsy lung specimen. (Korean J Infect Dis 33:301∼309, 2001)

RNA-seq profiling of transcriptomic changes in gibberellic acid-treated seeded grapevine during inflorescence development

Chan Jin Jung,Su-Jung Lee,Youn Young Hur,Sung-Min Jung,Jung-Ho Noh,Jong-Chul Nam,Kyo-Sun Park,Sung-Hwan Jo,Hee Jae Lee 한국육종학회 2013 한국육종학회 심포지엄 Vol.2013 No.07

Gibberellic acid (GA) is a well-characterized plant hormone, which plays a critical role in various plant growth and development. including stem elongation, floral indcution and seed development. GA is known to cause enlargement of ripening fruits and, especially in grapevines, GA shows a unique function: the induction of seedlessness in seeded grape varieties. However, despite extensive previous studies about GA, there has been no clear verification of the mechanism that induces seedlessness in grapes. To understand how GA treatment results in artificial parthenocarpy of seeded grapes at molecular levels, we analyzed transcriptional changes in seeded grapes with and without GA application in various inflorescence developmental stages using RNA-seq. At 14 days before flowering (DBF), seeded grapes were treated with 100 ppm GA and clusters were collected at three developmental stages: 7 DBF, full bloom, and 5 days after flowering (DAF). Of a total of 28,974 genes that were mapped to grape genome reference sequences, 7,013 and 9,064 genes were up- and down-regulated, respectively, in the GA-treated grape as compared to the non-GA-treated control at 7 DBF, full bloom, and 5 DAF. Clustering analysis revealed that these genes could be grouped into 9 clusters with different expression patterns. We also carried out functional annotation based on gene ontology categories. There were significant differences in the expression of the GA and auxin-related gene families. These findings expand our understanding of the complex molecular and cellular mechanisms of GA-induced parthenocarpy of grapes and provide a foundation for future studies on seed development in grapevines.

Physicochemical Properties of Supporting Materials and Growth of Potato (Solanum tuberosum L.) Plantlets in Nutrient-Circulated Photoautotrophic Micropropagation System

Jung Hyuk Seo,Hyun Jun Park,Young Kyo Jung,Jung Eek Son 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-

Teratoma with Malignant Transformation in the Anterior Mediastinum: A Case Report

Jung Im Jung,Seog Hee Park,Jae Gil Park,Sun Hee Lee,Kyo Young Lee,Seong Tai Hahn The Korean Society of Radiology 2000 Korean Journal of Radiology Vol.1 No.3

Malignant transformation of teratoma in the anterior mediastinum is rare; the mass usually has a long history and is seen in older patients. We report a case of teratoma with malignant transformation in the anterior mediastinum, complicated by rupture. CT revealed a lobulated, inhomogeneous cystic mass with a fat component and wall calcifications. The lateral wall was disrupted and consolidation in the adjacent left upper lobe was noted, suggesting rupture. A heterogeneously enhanced solid portion, obliterating the fat plane between the mass and the great vessels was present in the medial aspect of the mass, and pathologic examination demonstrated the presence of adenocarcinoma.