• Title/Summary/Keyword: National Authority Data

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Implementation of RBAC Certification & DB Security Based on PMI for NEIS (NEIS를 위한 PMI 기반의 RBAC 인증과 DB 보안 구현)

  • Ryoo Du-Gyu;Moon Bong-Keun;Jun Moon-Seog
    • The KIPS Transactions:PartC
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    • v.11C no.7 s.96
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    • pp.981-992
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    • 2004
  • The established NEIS has a lot of problems in the management of security. It does not realize access control in following authority because it only uses PKI certification in user certification and the use of central concentration DBMS and plain text are increased hacking possibility in NEIS. So, This paper suggests a new NEIS for the secure management of data and authority certification. First, we suggest the approached authority in AC pf PMI and user certification in following the role, RBAC. Second, we realize DB encryption plan by digital signature for the purpose of preventig DB hacking. Third, we suggest SQL counterfeit prevention by one-way hash function and safe data transmission per-formed DB encryption by digital signature.

A Study on the Effect of Vehicle Emission on Gasoline Property (휘발유 물성조성에 따른 자동차 배출가스 영향 연구)

  • Lim, Jae-Hyuk;Lee, Jin-Hong;Kim, Ki-Ho;Lee, Min-Ho
    • Journal of Power System Engineering
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    • v.22 no.6
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    • pp.51-57
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    • 2018
  • In Korea, the Air Quality Conservation Act and the Petroleum and Petroleum Substitute Fuel Business Act stipulate certain quality standards for fuels distributed in Korea, thereby striving to reduce vehicle performance and emissions. Domestic petroleum products import and produce all the crude oil from each oil refiner so that the quality of the petroleum product is different according to the characteristics of the crude oil. As a result, vehicles have been improved by using the physical properties calculated through the physical property measurement that has tried to improve the accuracy of the measurement of the energy consumption efficiency of the automobile by using standard fuel from abroad. In this study, the same test procedure and method as the test method of domestic gasoline vehicle emission are applied using four samples of gasoline and the latest gasoline vehicle which are actually distributed, and the performance evaluation is performed. The purpose of this study is to contribute to improvement of vehicle technology and fuel quality by collecting necessary basic data and obtaining data on the effect of differences in gasoline property on vehicle emissions. The results of the test showed that the emission of gases (NMOG, CO) from gasoline vehicles was the most influenced by the sulfur content, unlike the previous studies that the vehicles emission had the greatest influence on the distillation characteristics and the specific gravity of aromatic compounds. The catalytic reaction such as the poisoning action of the three-way catalyst which is the abatement device was interfered and the emission was increased. The distillation characteristics and specific gravity of aromatic compounds were found to affect the emission of vehicles. According to the physical properties of the fuel, the emission difference was 28.0% in the urban mode and 17.6 % in the highway mode.

Improving the National Archives of Korea's Service for Change Information of Records-Creating Agencies Using Records in Contexts-Ontology (RiC-O) (RiC-O(Records in Contexts - Ontology)를 활용한 국가기록원 기록물 생산기관 변천정보 서비스 개선방안)

  • Hyunchae Kim;Sunghee Kang;Hae-young Rieh
    • Journal of Korean Society of Archives and Records Management
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    • v.24 no.1
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    • pp.47-72
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    • 2024
  • This study delves into the National Archives of Korea's service that provides information on changes in records-creating agencies, identifying the problems in an organizational relationship structure and exploring potential enhancements using the RiC-O. Drawing insights from the French PIAAF project, we applied RiC-O to integrate information on records and records creators, elucidating relationships between data entities. Our analysis demonstrated that leveraging RiC-O, coupled with technologies like linked data, amplifies the interoperability of authority records, substantially enhancing the service providing information on changes in records-creating agencies. Based on these findings, we propose an authority record service based on RiC-O, presenting a prototype designed to improve the National Archives of Korea's change information service and enhance user experience.

The analysis of Change on Property and CO2 Emission Factor of Domestic Transportation Fuel from 2012 to 2015 (2012 ~ 2015년 국내 수송용 연료의 물성 및 CO2 배출계수의 변화추이 분석연구)

  • Kang, Hyungkyu;Doe, Jinwoo;Lim, Wanguy;Hwang, Inha;Ha, Jonghan;Na, Byungki
    • Journal of the Korean Applied Science and Technology
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    • v.33 no.4
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    • pp.855-863
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    • 2016
  • Most greenhouse gases were arisen from the generation and use of energy, more than about 95 % of greenhouse gas from the traffic section was resulted by the transportation fuels. Also, when using the $CO_2$ emission factor suggested at IPCC G/L, there was the weakness which did not reflect the own property of fuel by country. And most industrialized countries have applied with the $CO_2$ emission factor of Tier 2 or Tier 3 to make the national greenhouse report to submit to UN according to the Kyoto Protocol. In this study, the transportation fuels using in domestic like unleaded gasoline, diesel, etc were analysed to identify the physical/chemical properties and these data were used to calculate the $CO_2$ emission factor of each fuels. And the study analysed the time series analysis to compare the property of fuels according to the change of time.

Assessment of Earth Remote Sensing Microsatellite Power Subsystem Capability during Detumbling and Nominal Modes

  • Zahran M.;Okasha M.;Ivanova Galina A.
    • Journal of Power Electronics
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    • v.6 no.1
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    • pp.18-28
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    • 2006
  • The Electric Power Subsystem (EPS) is one of the most critical systems on any satellite because nearly every subsystem requires power. This makes the choice of power systems the most important task facing satellite designers. The main purpose of the Satellite EPS is to provide continuous, regulated and conditioned power to all the satellite subsystems. It has to withstand radiation, thermal cycling and vacuums in hostile space environments, as well as subsystem degradation over time. The EPS power characteristics are determined by both the parameters of the system itself and by the satellite orbit. After satellite separation from the launch vehicle (LV) to its orbit, in almost all situations, the satellite subsystems (attitude determination and control, communication and onboard computer and data handling (OBC&DH)), take their needed power from a storage battery (SB) and solar arrays (SA) besides the consumed power in the EPS management device. At this point (separation point, detumbling mode), the satellite's angular motion is high and the orientation of the solar arrays, with respect to the Sun, will change in a non-uniform way, so the amount of power generated by the solar arrays will be affected. The objective of this research is to select satellite EPS component types, to estimate solar array illumination parameters and to determine the efficiency of solar arrays during both detumbling and normal operation modes.

Standardization of the Archival Description (기록물 기술의 표준화)

  • Suh, Hye-ran
    • The Korean Journal of Archival Studies
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    • no.1
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    • pp.7-22
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    • 2000
  • It is almost impossible to fulfill the users' information needs efficiently without any finding aids. The idiosyncrasy of archival materials had led the archivists to develop their own descriptive rules until the mid of 1980s. It was the arrival of computers and information networks that stimulated the archival community to standardize its variant descriptive practices. The primary purpose of the national and international archival description standards is to facilitate the cooperative archival data exchange. The Ad Hoc Commission on Descriptive Standards of the International Council on Archives adopted ISAD(G) and ISAAR(CPF) in 1993 and in 1995 respectively. ISAD(G) guides the formulation of information in each of 26 elements that may be combined to constitute the description of an archival entity. ISAAR(CPF) is to give general rules for the establishment of archival authority records in descriptions of archival documents. Histories, structures and fundamental principles of those two international archival standards have been studies in this article. Most of the present archival description standards are based on the principle of provenance and the authority model. The instability of modern organizations and the digitalization of record keeping systems have been making the archivists to review these basic archival principles. It is suggested that Korean archival community should attempt to draft a national archival descriptive standard suitable to the Korean archival practice and Korean language in the framework of the international standards.

Analysis on the Present Condition of National Framework Data for the Disaster GIS (소방방재 GIS를 위한 국가 기본공간정보의 현황 분석)

  • Park, Hong-Gi
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.29 no.6
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    • pp.659-666
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    • 2011
  • The absence of present accurate geospatial information can cause us to undergo severe problems in controlling the complicate and multiplicate disaster. Our country is trying to build the Disaster Spatial Data Infrastructure (DSDI), and the key information is the national framework data. This study aims to investigate the characteristics of disaster spatial data, and analyze the present conditions and problems of national framework data, and suggest the way to improve for the GIS application system. In order to provide a wide range of services through the national geospatial data integration system, the data management authority should be established to maintain the consistency of quality and data accuracy of the entire national spatial data infrastructure. In addition, the step-by-step update plan of the national geospatial data should be determined by means of the framework data. And the basic data (lowest common denominator) should be formulated to maintain the data consistency of national spatial information infrastructure.

A Study on Constructing Preferred Titles and Authorized Access Points for Religious Works (종교저작의 우선표제 및 전거형접근점 적용 방안)

  • Jee-Hyun Rho
    • Journal of Korean Library and Information Science Society
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    • v.54 no.4
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    • pp.105-122
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    • 2023
  • This study aims to explore preferred title and authorized access points for religious works with sample bibliographic data and authority data. To this end, this study (1) reviewed RDA and recently revised KCR as cataloging rules, (2) investigated the preferred titles and authorized access points of religious works in major national libraries as a case study, and finally (3) suggested a method for constructing preferred titles and authorized access points for religious works in Korean libraries using sample data. The data needed for the study were collected through literature research and case studies, and additional email inquiry with the catalog librarians was conducted. As a result of the study, preferred titles and authorized access points for religious works were proposed in the form of KORMARC bibliographic and authority data.

A Study on the Cause Analysis of Human Error for of Railway Accidents using HEAR Analysis Methods (HEAR 분석방법을 이용한 철도사고의 인적오류 원인분석 연구)

  • Lee, Yong Man;Park, Min Kyu;Shin, Tack Hyun
    • Journal of the Korea Safety Management & Science
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    • v.15 no.4
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    • pp.73-80
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    • 2013
  • Because the damages of corrosion resulting from the chloride ion are very serious, many research studies have been performed to measure the penetration depth of the chloride ion. However, there is a problem with data selection obtained from collection during experiments. In this study, it appears that the collected data are not conformed to a normal distribution. The result of this study will play a very important role, as a first step for the development and construction of a forecasting system to help determine a reliable service lifetime of marine structures.

Similarity Measurement Using Ontology in Vessel Clearance Process (온톨로지를 이용한 선박 통관 프로세스의 유사성 측정)

  • Yahya, Bernardo N.;Park, Jae-Hun;Bae, Hye-Rim;Mo, Jung-Kwan
    • Journal of Korean Institute of Industrial Engineers
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    • v.37 no.2
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    • pp.153-162
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    • 2011
  • The demands of complicated data communications have issued a new challenge to port logistics systems. Customers expect ports to handle their generated administrative data while a vessel is docked in a port. One port logistics system, known as the Vessel Clearance Process (VCP), manages large numbers of documents related to port of entry. In the VCP, information flows through many organizations such as the port authority, shipping agents, marine offices, immigration offices, and others. Therefore, for effective management of the Business Process (BP) of the VCP, a standardized method of BP modeling is essential, especially in heterogeneous system environments. In a port, according to port policy, terms and data are sued that are similar to but different from those of other logistics partners, which hinders standardized modeling of the BP. In order to avoid tedious and time-consuming document customization work, more convenient modeling of BP for VCP is essential. This paper proposes an ontology-based process similarity measurement to assist designer for process modeling in port domain, especially VCP. We expect that this methodology will use convenient and quick modeling of port business processes.