궤적 정보를 이용한 냉동 컨테이너 모니터링 시스템

이명진,이응재,하덕천,류근호,백승재 한국지리정보학회 2005 한국지리정보학회지 Vol.8 No.1

위성 통신 기술의 발달로 국부적으로 수행리던 위치 추적의 범위가 선 세계로 3~4간되었다 하지만 기존의 물류 관제 시스템들은 관제 서버와 물류간의 통신을 위하여 휴대폰 통신망을 이용하기 때문에 일부 지역 내에서 이동하는 물류에 대해서만 관제가 가능하다. 이 논문에서는 위성 통신을 이용하여 전 세계를 이동하는 물류 매체인 냉동 컨테이너의 위치 및 상태 정보를 관리하기 위한시스템을 제안하였다. 제안 시스템은 냉동 컨테이너의 상태를 직절 관제하는 데이터 수집부, 관제서버와의 통신을 담당하는 위성 통신부, 냉동 컨테이너 정보를 판리하는 관제부로 구성된다. 시스템의 관제부에서는 냉동 컨테이너의 위치 주적 및 관제를 효과적으로 수행하기 위하여 기존의 TB 트리를 기반으로 하는 다중 버전 이동 객체 색인을 사용하였다. 제안된 냉동 컨테이너 관제시스템은 화주, 운송회사 등 육해상 물류관련 기관에서 냉동컨테이너 및 선박 위치추적, 컨테이너 통제, 컨테이너 통계 등 다양한 용도로 사용될 수 있어 화주에게는 컨테이너 운송에 대한 서비스를 제공하며, 선사에게는 선박안전경보시스템, 선박 관리, 냉동컨테이너를 효율적인 관리 기능을 제공하게 한다. As developing satellite communication, the tracking range of the moving objects which move in local area is expanded to the whole world. However previous logistics management system is able to monitor freight which transporting in local area using mobile communication system. In this paper, we propose the reefer container management system that manages the location information and other related information such as temperature, humidity of container using the satellite system. The proposed system consists of three parts; data collector, satellite communication manager, reefer container information manager. And the proposed system uses the moving object index for managing the trajectory of container and tracing the location of container or vessel that is transporting the container, and supports various services such as reefer container and vessel tracking, container control and container statistics to logistic companies like shipper and forwarding agent. And the system can be increasing the quality of container transportation service to the shipper, and it makes the efficient management of reefer container to the shipping company.

(Bi_2O_3)_0.73(CaO)_0.27 세라믹 산소이온전도체의 저온에서의 전기전도 특성

李晟齊,盧鎭孝,白鉉德 홍익대학교 산업기술연구소 1996 産業技術 Vol.6 No.-

Low temperature characteristics of ionic conduction in (Bi_2O_3)_0.73(CaO)_0.27 ceramics were investigated by ac impedance analysis. In the 200 to 500℃ temperature range grain boundary effect was not separated in the impedance plane. The speciments with larger grain size exhibited higher electrical conductivity and lower activation energy than deternined to be 101 kJ/mol, which was very close to the reported value, 106 kJ/mol. At 300℃ and lower temperatures conductivity curve bent toward higher conductivity, as was reported in the some other ion conducrors. The conductivity showed aging effect at temperatures lower than 350℃, but conductivity decrease was not significant.

용접 접합이 재료의 인성 변화및 분산에 미치는 영향

이성호 ; 김진덕 김천대학교 2001 김천대학교 논문집 Vol.22 No.-

The toughness which is one of mechanical properties is researched in this paper.

눈의 굴절이상과 고위수차의 상관관계 : The correlations of ocular refractive error and higher-order aberrations were exam- ined

이상덕 ; 김진숙 김천대학교 2012 김천대학교 논문집 Vol.33 No.-

The correlations of ocular refractive error and higher-order aberrations were exam- ined. The measurement of refractive error and higher-order aberration used KR-9000PW. the wavefront aberrometer with Hartmann-Shack method, and the 44 subjects (88 eyes) with S.E. value of 0.00D to -9.04D were considered for analysis. As the result of Pearson correlation analysis for S.E. and higher-order aberration RMS, Coma aberration showed a significant correlation (r=0.251, p<0.05) with S.E., but Trefoil aberration, Tetrafoil aberration, Spherical aberration, 2nd Astigmatism and such showed no significant correlation with S.E. Also, the 3rd aberration including Trefoil aberration and Coma aberration showed a significant correlation with S.E. (r=0.244, p<0.05), but 4ch aberration and total higher-order aberration showed no significant correlation with S.E. The cylinder refractive error had no significant correlation with all higher order aberrations. In comparison to higher-order aberration RMS value, the group with S.E. below -1.00D the high myopia group over -6.00D, only the total higher-order aberration and 3rd aberration RMS showed a significant difference (p<0.05), and all other aberrations showed no significant difference in the RVS value between the two groups. Only Coma aberration and Zernike Polynomials 3rd order aberration RMS showed a statistically significantly low correlation with S.E., and cylinder refractive error (C) showed no significant correlation with all higher-order aberrations. In comparison to the group with S.E. below -1.00D and the group over -6.00D, only the total higher-order aber-ration and 3rd aberration RMS showed a significant difference between the two groups.

Polylysine을 입힌 배양면이 GH₃ 뇌하수체 종양 세포에 미치는 영향에 관한 연구

김정진,백상호,황덕호,황영일,이왕재,이병란 대한해부학회 1998 Anatomy & Cell Biology Vol.31 No.3

눈의 굴정이상과 고위수차의 상관관계

이상덕, 김진숙 김천대학교 2013 김천대학교 논문집 Vol.33 No.-

The correlations of ocular refractive error and higher-order aberrations were examined.

Lesch-Nyhan 증후군을 가진 소아의 체외충격파신쇄석술을 위한 전신마취 경험

박상진,권일치,이원기,이덕희 영남대학교 의과대학 2008 Yeungnam University Journal of Medicine Vol.25 No.1

Lesch-Nyhan syndrome is an inborn error of purine metabolism resulting from hypoxanthine-guanine-phosphoribosyltransferase (HGPRT) deficiency and leading to excess purine production and uric acid over-production. It is a very rare X -linked recessive disorder, characterized by movement disorder, cognitive deficits, and self-injurious behavior. However, because of the high incidence of calculi, patients may present for surgery of urinary tract, and have increased risk of difficult intubation, aspiration pneumonia, renal insufficiency or sudden death. We report the case of a 5-year-old boy with Lesch-Nyhan syndrome who underwent successive extracorporeal shockwave lithotripsy under general anesthesia.

수중거리센서 제작과 특성에 관한 연구

김진수,김용혁,이덕출 경북대학교 센서기술연구소 1992 센서技術學術大會論文集 Vol.3 No.1

백화사설초 메탄올 추출물에 의한 HL-60 細胞 枯死過程에서의 cell cycle 關聯因子의 活性變化 硏究

한세희,이종범,문구,문석재,원진희,박래길,이종덕 대한한방종양학회 2000 대한한방종양학회지 Vol.6 No.1

Objecives: Hedyotis diffusa is used to treat cancer in traditional Korea Medicine. So this study was carried out to examine the expression of cell cycle related genes in HL-60 cells undergoing apoptosis by the methanol extract of Hedyotis diffusa. Methods: 1. HL-60 cells were treated with various concentrations (from 200 to 50㎍/ml)of metnanol extract and H20 extract (200 ㎍/ml) of hedyotis diffusa. After 48 h later, the cells were tested for viability by MTT assay. 2. The HL-60 cells were treated with 200 ㎍/ml of methanol extract for the indicated periods. The whole cell lysates were prepared and analyzed by westem blotting using anti-p53 antibody. 3. The nuclear extract were prepared and analyed by western blotting using anti-p21 antibody, anti-p27 antibody, anti-cyclen A antibody, anti-cylin E antibody and anti-CDK2 antinbody. Results: 1. The methanol extract of Hedyotis diffusa induced the death of HL-60 cells in a dose dependent manner. 2. The methanol extract of Hedyotis diffusa makedly decreased the level of p21/Cipl and cyclin A in a time dependent manner. 3. The methanol extract of Hedyotis diffusa markedly increased tje ;eve; pf p27/Kip and cyclin E in a time dependent mammer. 4.The methanol extract of Hedyotis diffusa markedly did not affect the level of CDK2. Conclusions: These results provide evidence that expression of cell cycle related genes in HL-6- cells undergoing apoptosis by the methanol extract of Hedyotis diffusa mainly results from decreased level of p21/cipl and increased level of p27/Kipl of the cell cycle related genes.

Polyimide계 배향막의 합성과 그 입체구조가 액정분자의 프리틸트 각에 미치는 영향

김재창,이상진,허노성,권덕용,이진국 釜山大學校生産技術硏究所 1997 生産技術硏究所論文集 Vol.53 No.-

Polyimide계 배향막은 고온처리 등 디스플레이 제조공정을 거치면서도 액정 배향특성이 유지되며 장시간 사용에도 물리·화학적 안정성이 좋은 장점을 가지고 있어 널리 사용되고 있다. 이 배향막을 연구하는데 있어서 합성기술과 러빙처리에 따른 배향막 표면의 특성분석이 필수적이며, 본 연구에서는 Diamine과 Dianhydride를 NMP용매하에서 용액중합하여 polyamic acid를 합성한 후, ITO코팅된 유리표면위에 스핀개스팅하여 박막을 입히고 열적처리를 하여 이미드화시켰다. 배향막의 배향을 위해서 러빙처리를 하고, 러빙처리 전후의 접촉각 측정을 통한 배향막 표면장력변화를 harmonic-mean 방법으로 구했고 2차 고조파 신호 (SHG) 분석을 통한 배향막 표면분자들의 방향성 분포를 검토해 보았다. Polyimide의 반복단위구조를 컴퓨터 그래픽 프로그램 (CS Chem3D Pro)을 사용하여 3차원적으로 시뮬레이션함으로서 polyimide의 입체구조를 알아보았다. 그리고 그 입체구조와 프리틸트 각과의 상관관계를 분자간 상호 작용설을 근거로 하여 살펴보았다. Polyimide has been widely used as the alignment film for liquid crystal displays because of their excellent properties, such as thermal can chemical stability. In this experiment, polyamic acid is rapidly formed at ambient temperatures when a diamine and a dianhydride are added into NMP. Polyimide films were fabricated by spin-coating solution on ITO-coated glass substrates. Polyimide films were baked at 80oC and then cured at 150oC 250oC for 30min at each temperature. The polyimide-coated substrates were rubbed by a rubbing machine with a roller. We measured the contact angles and the second-harmonic signals on the surface of samples to know the surface tension and the surface orientation of samples. and We also measured the pretilt angle of liquid crystal molecules in order to find the effect of the rubbing strength and the steric structure of polyimides on it.