• The KIPS Transactions:PartA
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• v.8A no.1
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• pp.1-8
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• 2001

This paper describes the design and implementation of C standard library for real-time operating system Q+, that is being developed for the internet appliance. The C library in the real-time operating system should be defined according to the standard interface and support the concurrent execution of threads. The implemented C standard library is reentrant and follows POSIX.l standard interface. And, the C standard library functions, which are adequate to the Q+ application and commonly provided by commercial real-time operating systems, are selected among POSIX.l standard functions. The C standard library is implemented on the Q+ kernel and D-TV set-top box according to the implementation sequence, which is determined by analyzing the relation of function calls.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1991.11a
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• pp.215-218
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• 1991

In designing the Machine element, most or part drawings are composed of basic entities. The basic entitles are classified into groups in order to enhance the drawing efficiency of computer aided design system based on GT concept. This paper deals with the generalization of handling drawing procedures which can cover the standard parts and the basic constitutional part of mold base.

• Journal of Sensor Science and Technology
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• v.25 no.4
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• pp.297-301
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• 2016

ISO/IEC JTC1/SC29WG11 MPEG has been standardizing UD(user description) to give a user personalized recommendation services. Besides, CD(context description), service description(SD), and recommendation description(RD) are recently being standardized by UD Adhoc Group in MPEG with an advanced UD to cope with needs of current and upcoming services such as augmented reality and social network. The descriptions was reflected to MPEG-UD WD(Working Draft) at MPEG $107^{th}$ meeting and the document was finally approved as international standard by national bodies with standard number(ISO/IEC IS 21000-22 UD) at $114^{th}$ MPEG meeting. In addition, reference software WD to validate conformance of UD standard was approved at $113^{th}$ MPEG meeting. In this paper, we developed a demo program for visual communication according to guideline defined in reference software WD to validate the reference software as well as UD standard.

• Journal of the Korean Home Economics Association
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• v.23 no.4
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• pp.33-54
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• 1985

The purpose of this study is to establish the suitable wearing standard under environmental thermal conditions in Pusan. The data is obtained from 50 girl students from April, 1984 to March, 1985. Items of the research are as follows : Environmental conditioni, clothing weight, contents of wearing, clothing climate, wearing order etc. RESULTS : 1. The upper clothing wights are varied considerably with temperature, while the lower are not. 2. The outdoor temperature and the total clothing weights show the high negative correlation of r=-.97 wth regression equation of Y=-37.64X+1692.66. 3. The clothing weight per clo is 390g/$m^2$. 4. Mostly, subjects were 2~7kinds of the upper and 3~5kinds of the lower clothing. 5. The clothing weights on the upper part of the body are heavier than those on the lower part of it. 6. The standard deviation of the obver clothing is larger than that of the under clothing. 7. The clothing shape of comfort-sensation reporter changes with variation of temperature. 8. The clothing climate of the inner layer is 32.26$\pm$$0.5^{\circ}C$ in temperature, 43.6$\pm$7% in humidity at four seasons. 9. It is represented that total subjects and comfort-sensation reporter control the wearing contents suitably for temperature. 10. The standard of wearing in Pusan is established as Fig. 6.

• Journal of Korean Society for Atmospheric Environment
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• v.15 no.2
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• pp.159-173
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• 1999

Based on air quality monitoring data('89~'97) operated by the Department of Environment, we provide various fundamental statistics for ground ozone. The purpose of this paper are to review the national ambient ozone standard, to study spatial distribution of ozone. Since we, in Korea, calculate average ozone level, to examine the occurrences of ozone level 3 times a day (1~8, 9~16, 17~24 hours), the method does not seem to be scientifically sound comparing to a running average method adapted by the USEPA. When we counted the number of cases with 8-h average O3 level exceeding 60ppb(8-h average standard in Korea)and 80 ppb (that in the U.S.A) and also when we calculated 8-hour average ozone level based on th US method, some regions were classified as non-attainment areas. Especially in Seoul, results of spatial distribution analysis showed that high level ozone over 80 ppb was observed at Kuui-Dong and Pangi-Dong in the eastern part and at Ssangmun-Dong in the northeastern part. Also, occurrences of ozone episode defined as number of days then ozone level exceeding 80 ppb for 3 consecutive hours were extensively reviewed in this paper.

• Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference
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• 2003.10a
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• pp.127-130
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• 2003

An RSFQ (Rapid Single Flux Quantum) counter can be used as a frequency divider that was an essential part of a programmable voltage standard chip. The voltage standard chip is composed of two circuit parts, a counter and an antenna Analog signal of tens to hundreds ㎓ may be applied to a finline antenna part. This analog signal can be converted to the stream of SFQ voltage pulses by a DC/SFQ circuit. The number of voltage pulses can be reduced by 2n times when they pass through a counter that is composed of n T Flip-Flops (Toggle Flip-Flop). Such a counter can be used not only as a frequency divider, but also to build a programmable voltage standard chip. So, its application range can be telecommunication, high speed RAM, microprocessor, etc. In this work, we have used Xic, WRspice, and L-meter to design an RSFQ counter. After circuit optimization, we could obtain the bias current margins of the T Flip-Flop circuit to be above 31％ Our RSFQ counter circuit designs were based on the 1 ㎄/$\textrm{cm}^2$ niobium trilayer technology.

• The KIPS Transactions:PartD
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• v.12D no.5 s.101
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• pp.729-736
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• 2005

MND(Ministry of National Defense) has developed MND AF(Ministry of National Defense Architecture Framework) and CADM(Core Architecture Data Model) to guarantee interoperability among defense information systems. TRM(Technical Reference Model) and SP(Standard Profile) product defined in MND AF is core part of Information Technology Architecture and core element of interoperability guarantee. In this paper, we proposed a method which manages technical service and standard of TRM and SP, and developed TRM and SP management system based on the method. TRM and SP management system provides the basis for interoperability among information systems and a more efficient development and management of TRM and SP product.

• International Journal of Aeronautical and Space Sciences
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• v.17 no.1
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• pp.109-119
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• 2016

When manufactured parts undergo large deformations during the manufacturing process, the global specifications of a part based on the concept of tolerance zone defined in the ISO 1101 standard [1] enable one to control the part's global defects. However, the extent of this tolerance zone is too large when the objective is to minimize local defects, such as hollows and bumps. Therefore, it is necessary to address local defects and global defects separately. This paper refers to the ISO 10579 standard [2] for flexible parts, which enables us to define a stressed state in order to measure the part by straightening it to simulate its position in the mechanism. The originality of this approach is that the straightening operation is performed numerically by calculating the displacement of a cloud of points. The results lead to a quantification of the global defects through various simple models and enable us to extract local defects. The outcome is an acceptable tolerance solution. The procedure is first developed for the simple example of a steel bar with a rectangular cross section, then applied to an industrial case involving a complex 3D surface of a turbine blade. The specification is described through ISO standards both in the free state and in the straightened state.

• The Transactions of the Korea Information Processing Society
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• v.3 no.2
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• pp.399-406
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• 1996

LSO/IEC JTCI/SC24 is responsible for the development and maintenance of computer graphics standards. This subcommittee recognized the need to develop a new graphics standard, and launched a new project named PREMO which stands for Presentation Environment for Multimedia Objects. As the name implies, PREMO is intended to address not only graphics but also multiple media presentation using object concepts and a new formal description techniques. at the time of writhing this paper, Part 1 and Part 2 were in the stage of Committee Draft and Part 3 is a Working Draft. The Part 4 is at an earlier stage within ISO/IEC. This paper is to present the procedures and works taken to develop PREMO.

• Progress in Superconductivity
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• v.14 no.2
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• pp.102-105
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• 2012

We are developing meander-shaped metallic magnetic calorimeters using micro-fabrication methods. A planar Nb coil in a meander shape was fabricated on a Si substrate. The coil was designed to have a persistent current using a metal heater evaporated on a part of the coil. A paramagnetic sensor, $5{\mu}m$ thick Au:Er foil, was glued on top of the meander structure with epoxy. The magnetization and heat capacity were measured at different temperatures, and applied field currents matched well with expected values. The detector showed an energy resolution of 4 keV FWHM for the 5.5 MeV alpha particles.