• 한국전산유체공학회:학술대회논문집
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• 2010.05a
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• pp.109-114
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• 2010

Interface tracking of two phase is significant to analyze multi-phase phenomena. The VOF(Volume of Fluid) and level set are well known interface tracking method. However, they have limitations to solve compressible flow and incompressible flow at the same time. CIP(Cubic Interpolate Propagation) method is appropriate for considering compressible and incompressible flow at once by solving the governing equation which is divided up into advection and non-advection term. In this article, we analyze the droplet impingement according to various We number using improved CIP method which treats nonlinear term once more comparison with original CIP method. Furthermore, we compare spread radius after droplet impingement on the wall with the experimental data and original CIP original CIP method, and it reduces the mass conservation error which is generated in the numerical analysis comparison with original CIP method.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.33 no.3
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• pp.219-224
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• 2010

Depreciation accounting has as its main objective, the recovery of the original cost of plant investment less net salvage, over the estimated useful life of that plant. Accuracy of the whole life technique in meeting this objective depends entirely on the original estimates of service life and net salvages for an account. Where the whole life technique has been used and original estimates prove inaccurate, excessive or deficient accumulations in the depreciation reserve frequently occur. To overcome this, the remaining life technique is suggested to better match the challenges of accelerated technology and competition within the regulated environment. The flexibility of the remaining life technique will allow an even chance to provide a complete recovery of the original cost.

• Journal of Korean Medical classics
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• v.23 no.1
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• pp.217-233
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• 2010

"Singijonmangron(神氣存亡論; theory of mind-spirit activities)" is a medical discourse of Janggyeongak(張景岳) in the Ming[明] dynasty, and "Wongijonmangron(元氣存亡論; theory of original gi functioning)" is a work by Seoryeongtae(徐靈胎) in the Qing[淸] dynasty. One emphasized the importance of mind-spirit activities and the other said seriously about original gi functioning. We did a study on these two medical theories, and began with identifying the meaning of 'Gi' among the ancient chinese philosophy and medicine such as "Hwangjenaegyeong(黃帝內經)". After that, we showed the general 'Gi' and its variations in the meaning of 'Gi' according to name and function in "Hwangjenaegyeong(黃帝內經)"and other classics of prominent historic scholars of medicine, finally trying to find out the essentials of mind-spirit[神氣] by Janggyeongak(張景岳) and original gi[元氣] by Seoryeongtae(徐靈胎).

• Journal of electromagnetic engineering and science
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• v.9 no.1
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• pp.12-16
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• 2009

This paper presents a new iterative locally one-dimensional [mite-difference time-domain(LOD-FDTD) method that has a simpler formula than the original iterative LOD-FDTD formula[l]. There are fewer arithmetic operations than in the original LOD-FDTD scheme. This leads to a reduction of CPU time compared to the original LOD-FDTD method while the new method exhibits the same numerical accuracy as the iterative ADI-FDTD scheme. The number of arithmetic operations shows that the efficiency of this method has been improved approximately 20 % over the original iterative LOD-FDTD method.

• Transactions on Electrical and Electronic Materials
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• v.11 no.2
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• pp.89-91
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• 2010

Partial discharge (PD) resistances were investigated for three types of samples: original epoxy resins, epoxy micro composites with and without the silane processing, and mixture composites with micro and nano particles. The PD was applied to these materials using rod, gap, and plane electrodes. The partial discharge resistance found in the micro composites was better than that found in the original epoxy resin. Moreover, the mixture composites of $SiO_2$ nano and micro particles had much larger resistances than the original epoxy resin or microcomposites. It can be regarded that this excellent property was due to the fact that the nano particles have a dense structure between the micro particles.

• Journal of Korean Society for Atmospheric Environment
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• v.9 no.2
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• pp.132-139
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• 1993

TCM has been used for many environmental impact assessments and many case studies in Korea. TCM was applied to urbvan areas and rolling terrains. But original TCM was developed for rural area, and this model could not reflect the characteristcs of these study sites. This paper analyzed the characteristics of TCM, and modified the algorithm of area source, and modified the vertical wind speed profile exponents and diffusion parameter to make it applicable in urban area. In the process of modification, an important error in area source calculation of original TCM program was found. So that was corrected as follows. $$ Before modification $QC = 0.79788456^*(0.5^*GRID)^**BA/(U(IA, IRUN)^*AA^*BA TCM09310$ After modification $QC = 0.79788456^*(500^*GRID)^**BA/(U(IA, IRUN)^*AA*BA) modified$ $$ Then original TCM and modified TCM-urban mode were compared, and it was found that predicted mean value by original TCM was 7 times higher than observed mean value. But mean value by modified TCM-urban mode was very similar to observed value.

• 한국정보디스플레이학회:학술대회논문집
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• 2009.10a
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• pp.931-934
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• 2009

EHA(ethylhexyl acrylate), well known for the prepolymer used for PDLC, was used for the LC/polymer composite system for pixel isolated LC (PILC). In order to improve the polymer wall structures of EHA, various acrylate prepolymers were blended with EHA prepolymer.

• Journal of the Ergonomics Society of Korea
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• v.19 no.3
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• pp.77-92
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• 2000

This study is about the satisfaction and the usage of users' manual for mobile phones with multi-functions. The users' manual is redesigned by including ergonomic factors verified through survey. This paper is to propose a redesigned users' manual which is more readable and understandable than original users' manuals. The degree of improvement is measured by the usability evaluation. There are significant differences(p<0.05) in the number of functional description original users' manuals. And the degree of users' satisfaction with the description of Crystal Display) are significant diffenences among the original users' manuals. In the as of description, the significant differences are partially found. The users' manual is re arranging the explanations of functions compactly in a table form, and reducing the cl has also $3cm^*2cm$ LCD figures to facilitate the understanding. The usability evaluation users' satisfaction and understanding for the redesigned users' manual are higher than original users' manuals.

• ETRI Journal
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• v.37 no.3
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• pp.573-583
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• 2015

We introduce the idea of a forward-secure undetachable digital signature (FS-UDS) in this paper, which enables mobile agents to generate undetachable digital signatures with forward security of the original signer's signing key. The definition and security notion of an FS-UDS scheme are given. Then, the construction of a concrete FS-UDS scheme is proposed; and the proof of security for the proposed scheme is also provided. In the proposed scheme, mobile agents need not carry the signing key when they generate digital signatures on behalf of the original signer, so the signing key will not be compromised. At the same time, the encrypted function is combined with the original signer's requirement; therefore, misuse of the signing algorithm can be prevented. Furthermore, in the case where a hacker has accessed the signing key of the original signer, he/she is not able to forge a signature for any time period prior to when the key was obtained.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.1 no.1
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• pp.123-141
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• 1972

The Kosachalyo was the reference book which was composed of records collected about the procedures regulating the foreign relations or daily lives of the officials or the scholars, who had no official positions, in the Yi dynasty. The compilation work of the Kosachalyo was started from the date of the compilation of the original one by U sook-kwon (魚叔權) in the 9th year (1554) of King Myongjong (明宗). Su Myongung (徐明) revised and complemented the contents of the original one in full scale, named it as the Kosashinsu(攷事新書) in the 47th year(1771) of King Yongjo(英祖). In that period, the original Kosachalyo was revised and complemented twelve times and republished. Until now, it has been said that the original Kosachalyo had been suffered the revising or complementing works six times or nine times. But in this thesis it is assured that it was revised or complemented twelve times in the period from 1554 to 1771 upon the various historical documents.