• ETRI Journal
• /
• v.30 no.1
• /
• pp.113-128
• /
• 2008

Turbo codes are extensively used in current communications standards and have a promising outlook for future generations. The advantages of software defined radio, especially dynamic reconfiguration, make it very attractive in this multi-standard scenario. However, the complex and power consuming implementation of the maximum a posteriori (MAP) algorithm, employed by turbo decoders, sets hurdles to this goal. This work introduces an ASIP architecture for the MAP algorithm, based on a dual-clustered VLIW processor. It displays the good performance of application specific designs along with the versatility of processors, which makes it compliant with leading edge standards. The machine deals with multi-operand instructions in an innovative way, the fetching and assertion of data is serialized and the addressing is automatized and transparent for the programmer. The performance-area trade-off of the proposed architecture achieves a throughput of 8 cycles per symbol with very low power dissipation.

• Korean Journal of Occupational Health Nursing
• /
• v.32 no.4
• /
• pp.141-151
• /
• 2023

Purpose: This study explored caregivers' support needs to relieve their physical burden while working in long-term care facilities. Methods: Participants were 12 caregivers with more than 10 years of experience working at six long-term care facilities in Gwangju, South Korea. Data were collected through individual interviews conducted between June and July 2023. The results were analyzed using qualitative content analysis. Results: Of the four sub-categories and 13 codes, two categories emerged: "need for welfare medical devices" and "need for improved working conditions." Conclusion: Caregivers working in long-term care facilities require support in deploying and utilizing welfare medical devices to reduce their physical burden, along with improving staffing standards and ensuring they receive the proper amount of days off. Therefore, it is necessary to mandate the provision of a certain level of welfare medical devices to ease the physical burden on caregivers and improve the standards for the placement of caregivers in long-term care facilities.

• Journal of Welding and Joining
• /
• v.13 no.1
• /
• pp.45-50
• /
• 1995

전력산업 용접기술기준은 2단계 사업의 기계분야에 포함되어 개발이 진행되고 있으며, 발전소 기계기기의 용접에 필수적인 용접인정, 용접재료, 용접설계, 제작 및 설치에 대한 기술기준을 제정하고 있다. 현재 진행중인 기술기준 개발 2단계 사업은 1995년 6월에 마무리될 예정이며, 개발된 기술기준의 개정관리와 전력산업에 필요한 부족 분야의 기술기준 개발을 위해 기술기준 전담 상설기구를 설립하여 기술기준 관련업무를 지속적으로 추진할 계획이다. 이 글에서는 전 산업의 국내.외 용접기술기준 전용현황을 살펴보고 전력산업 용접기술기준의 개발현황과 향후 계획을 소개하고자 한다.

• Journal of Korean Society for Geospatial Information Science
• /
• v.9 no.1 s.17
• /
• pp.67-75
• /
• 2001

One of the biggest problems found from the results of the various GIS-related projects is this. In spite of the fact that there is a national standards on GIS data structures, in building and managing the information on a variety of facilities in an area, each of the concerned organizations has been building the information using their own standards on the selection and organizations of the target facilities, naming convention, and coding regulations of the selected facilities. This distinctively exposes the limits and problems of the national GIS data standards in adopting to the regional GIS projects, resulting in considerable problems in sharing the information already built. The national GIS data standards, therefore, should be expanded and revised. As an effort to solve the above-mentioned problems, this paper suggests an idea on the revision and expansion of the national GIS data standards in the field of road and related facilities. It is believed that same efforts should be made for the other areas of the national GIS data standards to increase the applicability to various GIS projects.

• Journal of the Korean Society for Nondestructive Testing
• /
• v.4 no.1
• /
• pp.23-29
• /
• 1984

This paper describes the evolution of quality assurance in Korea from it's total reliance on foreign contractors to the present status of conducting all QA functions independently. A brief status of the Republic of Korea Regulatory Bodies, licensing precess, codes and standards, and the quality organization of the Korea Electric Power Corporation are also included.

• Journal of Fisheries and Marine Sciences Education
• /
• v.21 no.1
• /
• pp.78-95
• /
• 2009

The purpose of this study is to define areas and standards of kindergarten teacher's competency through survey research and interview with early childhood education community - kindergarten teachers, vice principals, principals, administrators, parents, and professors in early childhood education. Raw data from 62 interviewees were grouped into 25 codes including 'professional knowledge about young children's developmental characteristics, and labeled for representative themes. Based on the result of interview analysis, two areas of 'knowledge and skill' area (15 standards) and 'attitude and grounding' area (20 standards) were classified, survey researched for appropriateness and relative importance of each standard. 704 members of early childhood education community were collected through stratified sampling. The research findings indicate that 'observation and evaluation ability for young children' and 'affection for young children' showed high appropriateness in 'knowledge and skill area' and 'attitude and grounding area', respectively. In the relative importance analysis, 'understanding of young children's development', 'understanding of curriculum for young children', and 'understanding of young children's behavioral problem and counseling' for knowledge and skill area, and 'respect for young children', 'affection for young children', responsibility', 'positive attitude' for attitude and grounding area showed high relative importance in order.

• Proceedings of the KIEE Conference
• /
• 2009.07a
• /
• pp.1443_1444
• /
• 2009

A study on the environmental tests for auxiliary and control circuits of high voltage switchgears, especially testing condition and requirements, according to the relevant international standards has been briefly reviewed in this paper. As the highest supply voltage of electric power systems have been progressed, testing techniques and testing standards such IEC codes improved and revised keeping step with it. Especially IEC 62271 series, which are applicable to the HV-class switchgears and controlgears have been revised in 2008 newly. In this paper, the special consideration and background information of environmental testing condition with mechanical operating performance, e.g. operation in a higher and lower ambient temperature, for the auxiliary and control circuits of switchgears and controlgears and considerable investigation to the related international standards have been provided. Examples of testing performed were showed and analysis of their test results have been described.

• Journal of the Korean Society for Precision Engineering
• /
• v.11 no.4
• /
• pp.106-113
• /
• 1994

Household electrical appliances should be designed to satisfy safety standards. An expert system is implemented to support the design process. The general-purpose expert system shell. ART-IM which is running under MS-DOS environment, is used to construct the knowledge-base. A set of rules has been extracted from the EN 60 335-1 that is British standard specification for the safety of household and similar electrical appliances. The main focus of this paper is on codes that have systematic and mormative structures. The internal structure of the safety standard is analysed to improve the process of rule extraction.

• International Journal of Naval Architecture and Ocean Engineering
• /
• v.13 no.1
• /
• pp.511-525
• /
• 2021

Aluminium outfitting is widely used in offshore platforms owing to its anti-corrosion ability and its light weight. However, various standards exist (ISO, NORSOK and EN) for the design of handrails used in offshore platforms, and different suppliers have different criteria. This causes great confusion for designers. Moreover, the design load required by the standards is not clearly defined or is uncertain. Thus, many offshore projects reference previous project details or are conservatively designed without additional clarification. In this study, all of the codes and standards were reviewed and analysed through prior studies, and data on variable factors that directly and indirectly affect the handrails applied to offshore platforms were analysed. A total of 50 handrail design load scenarios were proposed through deterministic and probabilistic approaches. To verify the proposed new handrail design load selection scenario, structural analysis was performed using SACS (offshore structural analysis software). This new proposal through deterministic and probabilistic approaches is expected to improve safety by clarifying the purpose of the handrails. Furthermore, the acceptance criteria for probabilistic scenarios for handrails suggest considering the frequency of handrail use and the design life of offshore platforms to prevent excessive design. This study is expected to prevent trial and error in handrail design while maintaining overall worker safety by applying a loading scenario suitable for the project environment to enable optimal handrail design.

• Wind and Structures
• /
• v.13 no.5
• /
• pp.433-449
• /
• 2010

Wind tunnel model tests were conducted for a residential apartment block located within the complex terrain of The Hong Kong University of Science and Technology (HKUST). The test building is typical of medium-rise residential buildings in Hong Kong. The model study was conducted using modelling techniques and assumptions that are commonly used to predict design wind loads and pressures for buildings sited in regions of significant topography. Results for the building model with and without the surrounding topography were compared to investigate the effects of far-field and near-field topography on wind characteristics at the test building site and wind-induced external pressure coefficients at key locations on the building facade. The study also compared the wind tunnel test results to topographic multipliers and external pressure coefficients determined from nine international design standards. Differences between the external pressure coefficients stipulated in the various standards will be exacerbated when they are combined with the respective topographic multipliers.