• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.15 no.12
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• pp.1035-1042
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• 2003

As the desire for a better condition in classroom increases, the distribution rate of warming and cooling conditioners increases. But it is known that according to the way by which the equipments put and are operated the comfortableness felt by persons who are in classroom can make a difference. Therefore, proper equipments in accordance with the size of classroom should be considered as well as operational methods when ceiling warming and cooling conditioners put. This study makes conclusions as follows through a simulation to get improvements in accordance with the size of classroom and to improve the heating performance of ceiling warming and cooling conditioners in classroom.

• The KSFM Journal of Fluid Machinery
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• v.2 no.3 s.4
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• pp.24-29
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• 1999

The ASME strainers have been newly installed at the suction side of each reactor coolant pump to get rid of the foreign materials which may damage the pump impeller or interfere with the coolant path of fuel flow tube or primary plate type heat exchanger. The strainer was designed in accordance with ASME SEC. III, DIV. 1, Class 3 and the structural integrity was verified by seismic analysis. The screen was designed in accordance with the effective void area from the result of flow analysis for T-type strainer. After installation of the strainer, it was confirmed through the field test that the flow characteristics of primary cooling system were not adversely affected. The pressure loss coefficient was calculated by Darcy equation using the pressure difference through each strainer and the flow rate measured during the strainer performance test. And these are useful data to predict flow variations by the pressure difference.

• 한국생물공학회:학술대회논문집
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• 2003.04a
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• pp.162-163
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• 2003

Through the experiment, process of producing hydrogen and organic compounds using C. reinhardtii has been researched. In dark fermentation, pH and dry cell weight as well as starch content decreased as time goes, while organic compounds and hydrogen were produced more in accordance with time. Still, organic compounds showed tendency to increase in accordance with time, but hydrogen reached the maximum on the third day.

• Journal of Applied Tourism Food and Beverage Management and Research
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• v.16 no.2
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• pp.135-151
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• 2005

In accordance with changes in life style, people's desire to eat out is getting changed in their preferring factors from whether they can buy food they want to eat fast and easily to mood of the dining space, content and quality of service, hygiene condition of restaurant, quiet location and surrounding circumstance, and discount coupon and price destruction. In addition, consumers who begin to recognize the seriousness of environmental pollution prefer health-oriented food. On the other hand, excessive presence of competitors, growing personnel expense, increasing expenditure in accordance with swelling price of rent and material expenditure, increase of tax burden, decrease of income because of credit card service charge and high expected level by consumers make it difficult for restaurant's owners to manage restaurant business. Therefore, this study purposes to establish development of menu from the consumer's and the supplier's point of view and propose how to develop menu aiming at convenience, health and diversity.

• Journal of information and communication convergence engineering
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• v.9 no.5
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• pp.556-561
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• 2011

This paper presents a new method for shift keying using the combination of scaling function and wavelet named scaling wavelet shift keying (SWSK). An algorithm for SWSK modulation is carried out where the scaling function and the wavelet are encoded to 1 and 0 in accordance with the binary input, respectively. Signal energy, correlation coefficient and error probability of SWSK are derived from error probability of frequency shift keying(FSK). The performance is analyzed in terms of error probability and it is simulated in accordance with the kind of the wavelet. Based on the results, we can conclude that the proposed scheme is superior to the performance of the conventional schemes.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.65 no.9
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• pp.1590-1596
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• 2016

In this paper, catenary wires were analyzed aging through the experiment about a new product and a test sample in accordance with temperature changes from long-term use. In case of the contact wire, the maximum load was reduced within 7% and the tensile strength showed a reduced within 6.7% compared with a new reference standard $110mm^2$. 19 Strands of messenger wire have a little more than a standard value, but result data on tensile test were less than the reference value about stranded wire. Also parts among 49 strands of dropper was found to be smaller than the reference value and it appeared greatly increasing intensity as toward the center of the strand.

• Journal of Mechanical Science and Technology
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• v.16 no.6
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• pp.776-784
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• 2002

We have performed experimental studies for the improvements of pneumatic brake systems of freight trains. Currently, most of the freight trains operated by the Korean National Railroad have either empty-load or diaphragm type brake systems. In this study, appropriate methods that the air pressure characteristics in both type of brake systems are in accordance with each other have been investigated. We have also performed running tests using a 30 car-train set to design optimum capacity of a quick release valve. The test results show that the quick release valve is considerably effective in shortening the release time of the diaphragm type brake system. In the case of a normal brake application, the diaphragm type brake system with the quick release valve reduces the release time to 34% of that of the system without the quick release valve. This release time is almost equivalent to that of the empty-load type brake system. Accordance of braking performance in different types of brake systems in a train set is expected to prevent wheel flats and to reduce maintenance costs.

• Journal of Korean Library and Information Science Society
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• v.30 no.4
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• pp.327-350
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• 1999

This study tries to analyze the problems of rules for cataloging currently used n Korea such as KCR 3rd ed., KORMARC Description Rules, and KORMARC format, and to propose the methods solving the non-standardization of Korean cataloging records as follows: 1) No-main heading principles should be established so as to be applied to MARC format. 2) Description rules of cataloging currently used in Korea should be coordinated in accordance with MARC system and principles of bibliographical description. 3) Description rules of cataloging currently used in Korea should be coordinated in accordance with MARC system and principles of bibliographical description. 4) Unifying the format for CRT screen to display online catalog records are needed. 5) Conventional cataloging rules and MARC format should be coordinated.

• Journal of Korean Medical classics
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• v.18 no.3 s.30
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• pp.183-206
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• 2005

'Sanghallonju'(傷寒論注) reorganized the formation according to method of 'the classification of similar symptoms' and annotated the text of Sanghallon, introducing his new methodology and 'Sanghallonik'(傷寒論翼) proclaimed his new finding of the science of the Sanghan. Meanwhile, 'Sanghanbuik' (傷寒附翼) explains various prescriptions in the 'Sanghallon'. It categorizes prescriptions according to the six Meridians and sum up Gageum's research by commenting on the target symtoms and the use of medicine on each prescriptions. Gageum's study is consistent in desire for embodying the universality of the differentiation of syndromes in accordance with the theory of the six Meridians.(六經辨證) in the medical scene. From his work, the substantiality of the six 'Sanghandbuik' is a publication that shows the essence of Gageum's medical science from his inclination, conclusion and concrete methodology.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.29 no.7
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• pp.8-13
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• 2015

Recently, because a renewable power source must operate as a constant rate in accordance with RPS(Renewable Portfolio Standard), the study of the renewable power sources has been ongoing. Especially because of noise of wind turbine, troubleshooting, and urban greening business, research related with small wind turbine are underway. The economics and reliability are important parts for the activation of small wind turbine, such as solar energy. In this paper, by analyzing the temperature variations for each location and efficiency of power conversion devices in accordance with short period wind speed changes in simulation test, we reviewed the safety about temperature variations of wind generator and the method of selection of power converter.