• Analytical Science and Technology
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• v.13 no.2
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• pp.229-233
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• 2000

The study was carried out to confirm the reliability of standard samples, low concentration $0.74mgN(NO_3)/l$, $0.58mgF^-/l$, high concentration $2.14mgN(NO_3)/l$, $1.25mgF^-/l$, on the base of quality control chart. The analytical results had the precise reliability with standard deviation of 0.010, 0.017, 0.056 and 0.019, respectively. When three persons A, B and C, who had different analytical experiences, analyzed the standard samples six times repeatedly, C person, who had more academic career and analytical experience, produced far better reliability for analytical results. Therefore, these standard samples were very suitable for external quality control test, because all persons' average values for analytical results were close to the values of prepared standard samples.

• Proceedings of the Safety Management and Science Conference
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• 2007.04a
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• pp.449-456
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• 2007

This paper presents system of physical distribution module, and classification of logistics equipments. This study also introduces equipment standards of logistics facilities, and environmental rules for distribution center. Moreover, this paper shows safety standard and marking for logistics equipments and tools.

• Journal of Korean Society for Atmospheric Environment
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• v.33 no.4
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• pp.342-350
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• 2017

We report mass concentration and size fraction of TPM, $PM_{10}$ and $PM_{2.5}$ according to Korea standard test method (ES 01301.1 and ES 01317.1) and ISO 23210 methods. Particulate matters were sampled in large stationary emission sources such as a coal power plant and B-C oil refinery. The Korea standard test method PM mass concentrations showed 3~3.5 times larger than the cascade impactor method. On the other hand, the size fraction results showed less than 5% difference (i.e. $PM_{2.5}/PM_{10}$) between two methods. Moreover, the correlation coefficient ($r^2$) is 0.84 between TPM results of the Korea standard test method and CleanSYS. These results suggested not only improvement of current test criteria in terms of technical and theoretical aspects. Further, additional measurements are required in various large stationary sources to compare current field data.

• Journal of the Korean Institute of Educational Facilities
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• v.13 no.2
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• pp.25-33
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• 2006

Majority of elementary school in Korea are built by standard plan in 1980s. Being deteriorated and uniform, they have lots of problems to meet the new education curriculum and generate environmental problems in terms of its performances. This research intends to review the conditions of classroom units related with the environmental issues and provide the directions of sustainable renovation to meet the updated curriculum focusing on daylighting and ventilation systems for the classroom built by standard plan in 1980s.

• KIEAE Journal
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• v.13 no.5
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• pp.31-42
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• 2013

Green Standard for Energy and Environmental Design (G-SEED) is evaluates the eco-friendliness of the building as an abjective means. Study in green building is made actively, and is being developed through constant revision. However, study results of green building have not been fully reflected in the standard. Therefore, this study analyzes the previous studies about G-SEED and checks the reflection of requirements. This study will be a reference of future revision of G-SEED. Score of items are divided into low and high score items. These items should be reflected appropriately in the standard through the score adjustment. Some requirements proposed in previous studies was reflected, while substantial requirements was not reflected. Proposed improvement requirements are classed as to establish specific standards, strengthen standards, propose a new evaluation method to existing items, and add new items.

• Atmosphere
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• v.20 no.3
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• pp.367-377
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• 2010

Variation of tracer distribution during the vortex-breakup period in the Antarctic region was observed by the data from the Improved Limb Atmospheric Spectrometer (ILAS) and ILAS-II. All four trace species including methane, nitrous oxide, ozone, and water vapor show similar patterns of vertical gradient in spite of different structures of zonal mean mixing ratio. Timings of vortex breakup on each level are estimated by two different methods, and they are compared with zonal standard deviations following the latitude circle of each trace species. Although the tracers have different chemical life times and sink/source, the zonal standard deviation patterns show remarkable similarities. The zonal standard deviation shown here to measure the zonal asymmetry of tracer distribution is believed to diagnose the timing of the Antarctic polar-vortex breakup reasonably well.

• Journal of the Korea Society of Computer and Information
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• v.22 no.7
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• pp.9-16
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• 2017

In this paper, we propose a development method of portable Automatic Test Equipment based on PXIe platform. Legacy VME form factor structured test equipment has limited reuse and expansion of modules due to unapplied bus specification. In particular, these limitations can cause development periods and costs to increase, and the reliability of environmental conditions is lacking due to non-standard modules. The test equipment of the proposed PXIe platform can use diverse COTS modules to shorten the development period and minimize the instability between developments. The PXIe development module works with standard Xilinx FPGAs, PXIe Windows device drivers, and applications on standard PXIe buses. The use of standard bus and COTS modules increases scalability and reusability, enabling rapid development and excellent maintenance. Through the test, we show the proposed test equipments can be implemented efficiently between the development processes and proved their reliability through function tests and environmental tests.

• Korean Journal of Agricultural Science
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• v.37 no.3
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• pp.515-522
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• 2010

The purpose of this research was to construct an efficient management system in developing and supplying a 'management standard diagnostic table' for the improvement of chestnut cultivation farmhouse. 'Chestnut management standard diagnostic table' were based from the actual condition of chestnut management in Chungcheongnam-do, selected 'appraisal factor item and by consulting 'agricultural plant standard diagnostic table' and various kinds of data which had already been developed. This research also consulted the classification systems and degree of importance. The developed 'Chestnut management diagnostic table' consisted of 3 first classified items, 19 second classified items and 2 product indicator items.

• 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.

• Tunnel and Underground Space
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• v.11 no.1
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• pp.14-19
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• 2001

The estimation of proper prediction method and the transformation method of environmental regulation standard were carried out by measuring blasting vibration. Vibration velocity was more adequate than vibration level in the blasting design by scaled distance. Thus, design and construction mutt be controlled by vibration velocity, and it is required that the vibration velocity is transformed to vibration level to meet regulation standard. Three transformation methods were studied. First, transformation formula is derived from the shock vibration data only. The second method it the transformation by correlation equation of vibration velocity and vibration level measured at the same time. The last one is the transformation of vibration velocity by FFT. It seems to be difficult to estimate damages by these methods because that every method shows considerable error. But transformation formula of PPV component to vibration level was most practical.