• Journal of Microbiology
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• v.43 no.6
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• pp.523-528
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• 2005

Using the genomic library constructed at the downstream of the niiA promoter, which induces the over-expression of an inserted DNA fragment, we have attempted to screen the genes affecting growth or development by over-expression. The wild-type strain was transformed using the AMA-niiA(p) library and cultured on 1.2 M sorbitol media, in which asexual sporulation is induced, but sexual development is repressed. Over 100,000 strains transformed to $pyrG^+$ were analyzed with regard to any changes in phenotype. Consequently, seven strains were isolated for further analyses. These strains were designated NOT [niiA(p) over-expression transformants] stains. Four of the strains were of the inducible type, and the remaining strains were of the multi-copy suppression type. Two of the inducible-type strains, NOT 1 and NOT40, harbored genes which had been inserted in reverse direction, suggesting that the mutant phenotypes had been derived from an excess amount of anti-sense mRNA. Domain analyses of the deduced polypeptides from the DNA fragments rescued from the transformants revealed that NOT1, NOT40 and NOT6 harbored a LisH motif, a forkhead domain, and a $Zn(II)_2Cys_6$ binuclear zinc cluster, respectively.

• Journal of Astronomy and Space Sciences
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• v.24 no.1
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• pp.55-68
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• 2007

We carried out a validation study on AURIC FUV/EUV dayglow calculation with $OII\;834{\AA},\;OI\;989{\AA},\;OI\;1027{\AA},\;NII\;1085{\AA},\;NI\;1134{\AA},\;NI\;1200{\AA},\;OI\;1304{\AA},\;OI\;1356{\AA}$ dayglows observed by STP78-1 satellite. Comparison between calculated and observed values indicates that they are in agreement within about 20% for dayglows of $OII\;834{\AA},\;OI\;1027{\AA},\;NI\;1200{\AA},\;OI\;1304{\AA}$. However, the calculated intensities of $OI\;989{\AA},\;NII\;1085{\AA},\;NI\;1134{\AA}$ are only 42, 74 and 45% of the observed values, respectively, showing serious differences from the observation. It was surmised that the differences in $OI\;989{\AA}\;and\;NI\;1134{\AA}$ are due to incomplete calculation of radiative transfer and uncertain photochemical processes in AURIC model, respectively. The difference in $NII\;1085{\AA}$ is conjectured to be due to variation of the input solar EUV flux rather than due to AURIC model itself. For up-looking dayglows from the satellite, the calculated values from AURIC are all less than those of STP78-1, which may imply that AURIC model does not include dayglow contribution from regions below the satellite altitude when it computes dayglows in up-looking direction. The differences are particularly serious for $OI\;989{\AA},\;NI\;1134{\AA},\;NI\;1200{\AA}$ dayglows. The calculated latitudinal variation of $OII\;834{\AA}$ dayglow is also significantly different from the observed one, especially at mid-latitude regions. This may be due to inability of MSISE-90 (in input of AURIC) to simulate oxygen atom densities at mid-latitudes during auroral storms at those days of STP78-1 observations. Our findings of the validation study should be resolved when AURIC model is revised in future.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.25 no.6_1
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• pp.485-497
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• 2007

By the rapid development of Information Communication Technology (ICT) and Geo-spatial Technology (GT) and the increased usage of spatial data for planning and infrastructure management, the National Geographic Information System (NGIS) for more efficient and effective utilization of spatial information has been developed by the central government in Korea since 1995. NGIS is the base of Spatial Data Infrastructure (SDI). SDI is developed as one of National Information Infrastructures (NII). Among the hierarchy of SDI, National Spatial Data Infrastructure (NSDI) has very important role in the success of SDI development. Many research articles show that the USA's NSDI initiatives, development strategy have been strongly influenced all over the world. In these viewpoints, to propose the future directions of Korean NGIS, the development of NSDI strategy of USA is reviewed by literature through published book and internet resources. The conclusions of this study are as follow: 1) top-down and bottom-up approach are needed for integrated data sharing and standardization. 2) the creative and evolutionary vision and strategy has to be suggested. 3) the training program and lecture material has to be developed and diffused to the users and providers of spatial data. 4) governance system has to be built for NSDI evaluation. 5) the formation of geo-spatial forum to discuss the spatial-related problems and make research agenda, etc.

• Journal of information and communication convergence engineering
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• v.11 no.1
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• pp.45-49
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• 2013

A compact radio frequency (RF) bandpass filter (BPF) in low temperature co-fired ceramic (LTCC) is suggested for WiMAX applications. The center frequency ($f_0$) of the BPF is 5.5 GHz and its pass band or 3-dB bandwidth is 700 MHz to cover all the three major bands, low and middle unlicensed national information infrastructure (U-NII; 5.15-5.35 GHz), World Radiocommunication Conference (5.47-5.725 GHz), and upper U-NII/industrial, scientific, and medical (ISM) (5.725-5.85 GHz), for the WiMAX frequency band. A lumped circuit element design-the 5th order capacitively coupled Chebyshev BPF topology-is adopted. In order to design a compact RF BPF, a very thin ($43.18{\mu}m$) ceramic layer is used in LTCC substrate. An interdigital BPF is also designed in silicon substrate to compare the size and performance of the lumped circuit element BPF. Due to the high relative dielectric constant (${\varepsilon}_r$ = 11.9) of the silicon substrate, the quarter-wavelength resonator of the interdigital BPF can be reduced. In comparison to the 5th order interdigital BPF at $f_0$ = 5.5 GHz, the lumped element design is 24% smaller in volume and has 17 and 7 dB better attenuation characteristics at $f_0{\pm}0.75$ GHz.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 1996.11a
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• pp.305-314
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• 1996

본 고는 초고속정보통신서비스의 안전성을 제공하기 위해 공통적으로 활용이 가능한 보안 플랫폼의 요구분석에 관한 내용으로, 먼저 초고속정보통신서비스의 환경에 존재하는 보안 위협과 대응 방안을 알아보고, 서비스 유형별로 유구되는 보안 특성을 살펴본 후, 보안 플랫폼의 요구사항을 일반적인 요구, 구조적인 요구, 기능적인 요구로 분류하여 제시한다.

• 정보화사회
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• s.100
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• pp.37-39
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• 1996

초고속정보통신망은 정보 서비스의 다양화, 정보통신의 대량화 및 정보서비스의 고속화에 대한 요구에 따라 대두된 정보 고속도로(Information Superhighway)의 개념이다. 정보고속도로 구축사업은 세계적인 정보화 추세에 따른 국가정보화의 하부구조(NII: National Information infrastructure)를 구축하는 것으로 미국에서는 초고속정보통신망 구축사업(GII: Global Information Infastructure)을 추진하고 있으며, 일본에서는 신사회 자본건설, 유럽연합에서는 고속행정통신망, 싱가폴에서는 IT-2000이라는 계획 아래 추진되고 있다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.2 no.4
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• pp.447-454
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• 1998

The recent rapid evolution of the Internet and the increasing interest on the electronic commerce had been driven by the United States Federal Governments as strategic areas. The real meaning and effect of these technological evolution should be understood to find our right direction in current hard IMF environment wisely by analyzing the continual R&D efforts and policies of the US Federal Governments in the Information and Telecommunication areas. The typical R&D projects were the Supercomputer center program launched at 1985, HPCC program at 1992, NII project at 1993, and CIC R&D program at 1996 which were increasing in scale and budget. This paper will explain the overall key R&D efforts and policies of US Federal Governments in the industrial, science and technologies, and Information and Telecommunications areas as well as the background, concepts, and effect of 1996 Telecommunication Act as a deregulation efforts.

• Journal of the Korean earth science society
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• v.28 no.7
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• pp.847-856
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• 2007

The Planetary nebula NGC 6881 displays quadrupole morphology and it also has a jet feature in its image. We investigated the line profiles of the optical region spectral emission lines, using the Hamilton Echelle Spectrograph (HES) at the Lick observatory. The HES data obtained in this study was the radiation coming from the inner region within the diameter of 4 second of arc. Expansion velocity was obtained, based on the strong emission line profiles of e.g. H, Hel, Hell, [OIII], [NII], [ArIII], [SII], and [SIII}, using the IRAF and StarLink/Dipso reduction packages. The HI recombination lines showed one single peak profile, while the He and forbidden strong lines displayed double peaks. The results of this study show that the outflow velocity of gas increases radially outwards due to the central stellar radiation pressure. It was concluded that three central rings appeared in the HST image are the result of a combined structure of bipolar cones (seen in e.g. HI lines) and a ring (seen in He, [SIII] lines) in projection.

• The Bulletin of The Korean Astronomical Society
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• v.41 no.2
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• pp.34.1-34.1
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• 2016

The ultra hard X-ray band (14-195 keV) provides an important and unbiased way to understand black hole growth and relationship to the host galaxy. The Burst Alert Telescope (BAT) instrument on the Swift satellite has surveyed sky to unprecedented sensitivity, improving the number of known hard X-ray sources by more than a factor of 20 to 836 nearby AGN. The BAT AGN Spectroscopic Survey (BASS) is a study for the first large (N>600) and complete sample of ultra hard X-ray selected AGN with optical spectroscopy. In this talk, I present the observed relationship between black hole mass, bolometric luminosity, and Eddington ratio with optical emission line ratios. We show that [NII]/Ha ratio exhibits a significant correlation with Eddington ratio. We propose that the [NII]/Ha ratio is a useful indicator of Eddington ratio with 0.6 dex of scatter, and that it can be used to measure Eddington ratio and thus black hole mass from the measured bolometric luminosity, even for high redshift obscured AGN.

• Journal of Oriental Neuropsychiatry
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• v.24 no.4
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• pp.343-352
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• 2013

Objectives: This study was performed to review the research trends in treatment for REM sleep behavior disorder (RBD) in Traditional Chinese Medicine (TCM) and Kampo in Japan. Methods: We searched articles in CNKI (China National Knowledge Infrastructure) under the key words, "RBD", and Chinese words related with it in Traditional Chinese Medicine, Traditional Chinese Medicinal Herbs and Combination of Traditional Chinese Medicine With Western Medicine' field, and also in CiNii (Citation Information by NII); we also searched articles in Kampo Square in Japan under the key words, "RBD" and Japanese words related with it. We found 10 papers, and then selected 6 of them except the non-clinical and unrelated studies. We then analyzed their way of diagnosis, treatments, study type and etc.. Results: 6 studies were divided into 4 case reports, one control study, and one literature review study. All of the studies reported that Herbal medicine for RBD was effective as much as Western medicine like clonazepam and paroxetine. However, the quality and the quantity of these clinical studies were not enough. Conclusions: It seems that the researches for RBD have gradually been performed in TCM and Kampo. We hope that our study can activate/push forward clinical research for this disorder in Korean traditional medicine.