• 제목/요약/키워드: I.C.U.

검색결과 977건 처리시간 0.026초

미해군과 한국군 C4I 체계 분석 및 발전 방향에 관한 연구 (A Study on the Analysis of U.S.A Navy and R.O.K Military C4I System and Future Development)

  • 차현종;양호경;조용건;유황빈
    • 융합보안논문지
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    • 제11권6호
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    • pp.59-66
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    • 2011
  • 미래전의 대표적인 개념이 NCW(Network Centric Warfare, 네트워크중심전)이다. NCW는 네트워크로 연결되어 전장의 상황을 실시간으로 수집하여 관리하고 지휘통제를 하는 것이 핵심이다. 이러한 특성이 가장 필요한 경우가 해군이다. 해군의 작전은 광범위한 지역에서 개별적 또는 공동으로 작전을 펼친다. 이러한 과정 중에 각 함정 간의 정보의 공유는 기본으로 이루어져야 한다. 더욱이 미 해군의 경우 전 세계를 작전지역으로 보고 있기 때문에 NCW 의 대표적인 예라고 할 수 있다. 한국군 C4I체계는 각 군의 전술과 무기체계의 차이로 분리되어 상이하게 개발, 운영되어서 각 체계 간의 상호운용성이 확보되지 않는 문제점이 있다. 본 논문에서논문에서는 발달된 미 해군의 C4I체계를 분석하여 한국군 C4I체계의 문제점을 분석하고 향후 발전방향을 제시하고자 한다.

Synthesis and in vitro/vivo Evaluation of Iodine-123/124 Labelled Hypericin Derivatives

  • Kim, Sang-Wook;Park, Jeong-Hoon;Yang, Seung-Dae;Hur, Min-Goo;Choi, Chang-Woon;Yu, Kook-Hyun
    • Bulletin of the Korean Chemical Society
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    • 제29권10호
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    • pp.2023-2025
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    • 2008
  • To evaluate the potential of radioiodine labelled hypericin as a malignant glioma imaging agent, U-251 MG, U-373 MG, C6 glioma and fibroblast were treated with a I-123 labelled hypericin derivative and C6 glioma transplanted nude mouse were injected with a I-124 labelled hypericin derivative for a micro PET imaging. 2- Iodohypericin was prepared as a reference compound. In this paper, we describe the syntheses of 2- iodohypericin and 2-[$^{123}I/^{124}I$]iodohypericin and the results of a corresponding biological evaluation. In all glioma cell lines, 2-[$^{123}I$]iodohypericin uptake was increased in a time dependant manner and an accumulation of 2-[$^{124}I$]iodohypericin was observed in C6 glioma bearing nude mouse. These results suggest that radioiodine labelled hypericin can visualize a PKC overexpressed malignant glioma.

POSITIVE SOLUTIONS FOR NONLINEAR m-POINT BVP WITH SIGN CHANGING NONLINEARITY ON TIME SCALES

  • HAN, WEI;REN, DENGYUN
    • Journal of applied mathematics & informatics
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    • 제35권5_6호
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    • pp.551-563
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    • 2017
  • In this paper, by using fixed point theorems in cones, the existence of positive solutions is considered for nonlinear m-point boundary value problem for the following second-order dynamic equations on time scales $$u^{{\Delta}{\nabla}}(t)+a(t)f(t,u(t))=0,\;t{\in}(0,T),\;{\beta}u(0)-{\gamma}u^{\Delta}(0)=0,\;u(T)={\sum_{i=1}^{m-2}}\;a_iu({\xi}_i),\;m{\geq}3$$, where $a(t){\in}C_{ld}((0,T),\;[0,+{\infty}))$, $f{\in}C([0,T]{\times}[0,+{\infty}),\;(-{\infty},+{\infty}))$, the nonlinear term f is allowed to change sign. We obtain several existence theorems of positive solutions for the above boundary value problems. In particular, our criteria generalize and improve some known results [15] and the obtained conditions are different from related literature [14]. As an application, an example to demonstrate our results is given.

독서자원과 그 협력방안을 위한 시도적 연구-경상북도를 중심으로

  • 김남석
    • 한국도서관정보학회지
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    • 제3권
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    • pp.1-31
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    • 1976
  • If Y'ational developments are depend on the dex-elopment of regional >ociety and de~.elopment of regional society are rely on intellcctual delrelopment of members of regional society, going abreas! oi economic capacity. Estnhlis!l:r,ent of libraries as a treasure-house of mental resources and its Jet-elopment are inevit-able and important. But in every respect :f modern libraries are not equipped with contemporary devclij;!~i:c:\ulcornert of society. One c~i the resolving problems, like this, opening the door of the liI~-,\ulcornerr:~fa-c ilities, as one object, which located in every regional areas, u.9ng the existing facilities, the width of the library services mus: I)c opened. I-' ;- I n,> study is aimed at like the following: 1. is analysizing the situation ~vhich the library facilities of one ti:u~:sa!~d five hundred and fifty nine located here and there ir, Ii.;~-ui:gij~opkr ovince in Korea and s i s t ~t.l lousand seven hundred aid tliirl:~ six village libraries, for connecting as a library networks. 2. Tl\ulcornerc ivhole libraries in Kyungbook province and dividing into four ::arts as a Daegu, Phohang, Ahndong and Kimchun area as a transportation area, school area and resources area which exhibiting the view-point of helping-net~vorksl ike the following,

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$H{\alpha}/FUV$ Intensity Ratios in the Galaxy

  • Seon, Kwang-Il;Sankrit, R.;Edelstein, J.;Korpela, E.J.;Min, K.W.;Han, W.;Jin, H.;Park, Y.S.;Ryu, K.S.;Kim, I.J.
    • 한국우주과학회:학술대회논문집(한국우주과학회보)
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    • 한국우주과학회 2008년도 한국우주과학회보 제17권1호
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    • pp.18.3-18.3
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    • 2008
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CONFORMAL DEFORMATION ON A SEMI-RIEMANNIAN MANIFOLD (I)

  • Jung, Yoon-Tae;Lee, Soo-Young
    • 대한수학회보
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    • 제38권2호
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    • pp.223-230
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    • 2001
  • In this parper, we considered the uniqueness of positive time-solution to equation ${\Box}_g$u(t,$\chi$) - $c_n$u(t,$\chi$) + $c_n$u(t,$\chi$)$^[\frac{n+3}{n-3}]$ = 0, where $c_n$ = $\frac{n-1}{4n}$ and ${\Box}_g$ is the d'Alembertian for a Lorentzian warped manifold M = {a,$\infty$] $\times_f$ N.

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A Detection Matrix for $3N^n$ Search Design

  • Um, Jung-Koog
    • Journal of the Korean Statistical Society
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    • 제12권2호
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    • pp.61-68
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    • 1983
  • A parallel flats fraction for the $3^n$ factorial experiment is defined as the union of flats, ${t$\mid$At=C_i(mod 3)}, i=1,2,\cdot,f$, in EG(n,3) and is symbolically written as At=C where A is of rank r. The A matrix partitions the effects into u+1 alias sets where $u=(3^{n-r}-1)/2$. For each alias set the f flats produce an alias component permutation matrix (ACPM) with elements from $S_3$. In this paper, a detection vector of the ACPM was constructed for each combination of k or fewer two-factor interactions. Also the relationship between the detection vectors has been shown.

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