• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2013.10a
• /
• pp.142-144
• /
• 2013

선박 안전항해를 위해 항해용 해도와 같은 수로 정보와 함께 해사안전정보(MSI), 항행통보(NM), 항행경보와 같이 임의적인 안전관련 정보들이 이용될 수 있다. 현재 GMDSS 제도의 시행에 따라 해사안전정보와 항행경보 등의 정보들이 NAVTEX 등의 장비를 통해 텍스트 형태로 선박에 전달되고 있으나 이런 형식의 정보들은 기존 종이해도 또는 전자해도를 사용하는 ECDIS의 다양한 첨단 항해 지원 기능과 연계하기 어려운 단점이 있다. 이를 해결하기 위해 사례로 유럽은 e-Navigation Test-bed 프로젝트에서 IHO의 S-100 표준을 기반으로 하는 해사안전정보 데이터 표준을 수립하고 이를 활용한 서비스 연구 및 검증을 수행하고 있다. 본 연구에서는 국제수로기구의 S-100 표준에 따라 해사안전정보를 객체화 하여 모델링하고 이를 전자해도 정보와 연계하여 활용할 수 있는 방안을 모색하기 위해 유럽의 e-Navigation Test-bed 프로젝트에서의 해사안전정보 연구 사례(S-100 표준 기반의 해사안전정보 제품 표준), 국제수로기구의 해사안전정보 매뉴얼 등을 분석하여 국내 해사안전정보 서비스를 위해 필요한 기술개발 내역 및 방안을 제안 하였다.

• Journal of Navigation and Port Research
• /
• v.44 no.5
• /
• pp.375-381
• /
• 2020

The IMO has established a regulation for the ECDIS installation on ships based on the IHO S-57 standards. The ECDIS supports sailors in achieving a safe voyage by using ENCs and monitoring the information of their ship. However, the S-57 standards were developed as edition 3.1 and prohibited revision for more than 20 years. So, the IHO developed a new standard as S-100 into the hydrography and maritime field instead of updating the S-57 to edition 4.0. In this study, the new S-100 ECDIS was developed and verified with ENCs and the digital maritime safety information by using a ship steering simulator and by conducting an on-board sea-trial test. It evaluated the impact on ship operations if the next-generation navigation support system is introduced. Based on this research, the S-100 ECDIS will generate improvements such as safe voyages by providing various of real-time safety information and up-to-date data to ship and sailors.

• Electronics and Telecommunications Trends
• /
• v.25 no.6
• /
• pp.110-122
• /
• 2010

UCC, 트위터 등 멀티미디어 콘텐츠 증가, 유틸리티 컴퓨팅과 같은 다양한 신규 서비스의 급증, IPTV 등 높은 대역폭을 요구하는 애플리케이션의 증가, 가상화 데이터 센터의 등장과 함께 40G/l00G 이더넷 기술이 차세대 광대역 서비스 대역폭 요구에 대한 장기적 해결방안의 하나로 제시되고 있는 가운데 세계적으로 40G/100G 이더넷으로의 네트워크의 진화가 시작되고 있다 본 고에서는 최근 세계적으로 뜨거운 쟁점이 되고 있는 차세대 인프라 40G/100G 이더넷 표준을 기반으로 하는 디바이스 및 프로덕트의 출시 동향을 살펴보고 현재 사용 기능한 상용 칩을 이용한 40G 이더넷 라인카드의 구조와 향후 구현 가능한 100G 이더넷 라인카드의 구조 그리고 40G/100G 이더넷 상의 OTN 네트워크 응용에 대해 고찰한다.

• Analytical Science and Technology
• /
• v.10 no.5
• /
• pp.386-394
• /
• 1997

The standard samples for the calibration of PIXE analysis were prepared using the single element standard samples and sulfur and chlorine compounds. The diluted standard solutions were dropped on the non-hole nuclepore film and dried. Standard sample of six elements of Ca, Cr, Co, Cu, Se and Sr had close agreement between the measurement and theoretical values. According to the theoretical study about the effects of thick samples on the accuracy of the PIXE analysis, the reduction of X-ray yields in the thick sample can not be neglected for the sample thicker than $100{\mu}g/cm^2$.

• The Journal of the Society of Stroke on Korean Medicine
• /
• v.15 no.1
• /
• pp.29-38
• /
• 2014

■ Objectives The purpose of this study was to investigate the correlation of The Korean Standard Pattern Identification for Stroke and Intima-Media Thickness of common carotid artery(CCA-IMT). ■ Methods 100 subjects with acute ischemic stroke were recruited from the patients admitted to DongEui Medical Center from the June 2011 to January 2014. We assessed 100 patient's Common Carotid Intima Media Thickness data by B Mode ultrasonography. We investigated pattern identification of all subjects based on Korean Standard Pattern Identification for Stroke-III. then, We analyzed their characteristics, risk factor, blood test result, life style. ■ Results We analyzed indicators of Korean Standard Pattern Identification for Stroke-III by Common Carotid Intima Media Thickness difference. As a result, pale complexion, look powerless, drowsiness like to lie, heat vexation and aversion to heat were significantly higher in the CCAIMT ≧ 1.0mm group then in the CCA-IMT < 1.0mm group. ■ Conclusion According to the analysis, the Relationship between Carotid Intima-Media Thickness and The Korean Standard Pattern Identification for Stroke in Ischemic Stroke Patients were founded. To acquire more concrete conclusion on this theme, we need more research.

• Proceedings of KOSOMES biannual meeting
• /
• 2017.11a
• /
• pp.252-252
• /
• 2017

• Journal of the Institute of Electronics Engineers of Korea SD
• /
• v.45 no.8
• /
• pp.67-74
• /
• 2008

A compact and high-performance AES(Advanced Encryption Standard) encryption/decryption processor is designed by applying various hardware sharing and optimization techniques. In order to achieve minimized hardware complexity, sharing the S-Boxes for round transformation with the key scheduler, as well as merging and reusing datapaths for encryption and decryption are utilized, thus the area of S-Boxes is reduced by 25%. Also, the S-Boxes which require the largest hardware in AES processor is designed by applying composite field arithmetic on $GF(((2^2)^2)^2)$, thus it further reduces the area of S-Boxes when compared to the design based on $GF(2^8)$ or $GF((2^4)^2)$. By optimizing the operation of the 64-bit round transformation and round key scheduling, the round transformation is processed in 3 clock cycles and an encryption of 128-bit data block is performed in 31 clock cycles. The designed AES processor has about 15,870 gates, and the estimated throughput is 412.9 Mbps at 100 MHz clock frequency.

• KIPS Transactions on Software and Data Engineering
• /
• v.2 no.8
• /
• pp.571-578
• /
• 2013

The IHO S-100 is a standard on the universal hydorgraphic data model for supporting information services that integrate various data in maritime and provide proper information for safety of vessels. The S-100 is used to develop S-10x product specifications which are standards on guideline for creation and delivery of specific data set in maritime. The product specification for feature-based data such as ENC(Electronic Navigational Chart) data includes a feature catalogue that describes characteristics of features in that feature-based data. The feature catalogue is developed by domain experts with knowledge on data of the target domain. However, it is not feasible to develop a feature catalogue according to the XML schema by manual. In the IHO TSMAD committee meeting, needs of developing technology on building feature catalogue has been discussed. Therefore, we present a feature catalogue builder that is a GUI(Graphic User Interface) system supporting domain experts to build feature catalogues in XML. The feature catalogue builder is developed to connect with the FCD(Feature Concept Dictionary) register in the IHO(International Hydrographic Organization) GI(Geographic Information) registry. Also, it supports domain experts to select proper feature items based on the relationships between register items.

• Journal of Korean Library and Information Science Society
• /
• v.2
• /
• pp.1-21
• /
• 1975

Thc purposc of this .study is for ri~aking a model of building a library collcction dcnizn~cd on th.3 curriculum through thc inter-comparison of 15 standards for collcgc ant1 anivcrsily libraries in 5 countries (U. S. A.. Great Ikitain, Canada, Japan, and Icorca) Thc rcsult of thcscl colnpsrisons is as follow.. (1) Qu;~nlitalivc scope: of thc cull(:ction: (r/ Standards for a minimal collcction arc presented to about 100,000 vols (20-30 vols per student) for a ncw university and about 40,000 vols (40 vols pcr studcnt) for a nrnr collcge. $)$ Standards for a working collcction arc prescnted to 70-80 vols per student for a univer:aity and 50-60 vols per student for a college. $$ Standard for an intcnsive rescc~rch collcction is presented to morc than 100 vols p::r studcnt. (2) Stop: of the annual incrc;lsc cf thc collection: (i: Standard for a minimal collcction is ~~rescntcdto 1.4-2 vols per studcnt. $$ Standard for an intensive rrscarch or working collection is pcrsented to 4-5 vols pcr studcnt. (3) Scope of thc anni.1a1 budgetary standards: In Grcat I3ritain and U.S. A.. th-re aro assigned to 1 . 5 ~ 2 % of the collcge and university cxpcnditurr for books. $,$ In our country, it is prcscntcd to 3.5% of thc collcge and university expenditure for books, whcn my calculating by thc various factor analysis.

• Journal of the Korean Vacuum Society
• /
• v.14 no.3
• /
• pp.103-109
• /
• 2005

A new medium vacuum primary standard using the static expansion method was developed in KRISS. In order to evaluate the performance of the equipment, we compared the medium vacuum standard with an ultrasonic interferometer manometer using two capacitance diaphragm gauges, the measuring ranges of which were 133 Pa and 1,333 Pa respectively. The result, Error normalized values, showed that the two standards are coincident each other within the range of combined uncertainty at calibrated pressure of $3pa\;\sim\;100pa$.