• 한국정보통신학회논문지
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• 제10권7호
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• pp.1275-1280
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• 2006

본 논문에서는 국산램프(K社)와 일본제품과의 세경화에 따른 휘도 분포를 비교 분석함으로써 고휘도를 구현하기 위한 효율적인 구성 기준을 마련할 수 있다. 국산 LGP(S社)와 일본제품과의 특성, 휘도, 색도 및 균일도를 비교 분석함으로써 조기 국산화 및 국산화 안정화를 시킬 수 있도록 하고, 시트 변화에 따른 휘도 분포를 비교 분석함으로써 이상적인 시트 구성을 하였다.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2007년도 추계학술대회 논문집
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• pp.115-118
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• 2007

Recently, the development of LEDs is important and prevalent in the lighting market. The purpose of this study is to evaluate the performance of white LEDs by comparing with fluorescent lightings. First, this study performed to survey technical developments and design trend of white LEDs. Second, comparing white LEDs with fluorescent lightings which are widely used, this paper evaluated physical characteristics of white LEDs. Lastly, this study Performed subjective evaluation which is comparing side-by-side rooms installed LEDs and fluorescent luminaires to investigate psychological and physical evaluation. The results of this study could be used as fundamental data for the development of white LEDs.

• Journal of Microbiology
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• 제42권1호
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• pp.9-13
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• 2004

Culture-independent approaches, based on 16S rDNA sequences, are extensively used in modern microbial ecology. Sequencing of the clone library generated from environmental DNA has advantages over fingerprint-based methods, such as denaturing gradient gel electrophoresis, as it provides precise identification and quantification of the phylotypes present in samples. However, to date, no method exists for comparing multiple bacterial community structures using clone library sequences. In this study, an automated method to achieve this has been developed, by applying pair wise alignment, hierarchical clustering and principle component analysis. The method has been demonstrated to be successful in comparing samples from various environments. The program, named CommCluster, was written in JAVA, and is now freely available, at http://chunlab.snu.ac.kr/commcluster/.

• 대한수학교육학회지:수학교육학연구
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• 제11권2호
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• pp.257-271
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• 2001

This study investigated the new revised Mathematics curriculums of elementary schools in Korea and Japan at the end of the 20th century. The comparison was made especially with revising direction, purposes, and contents of elementary school mathematics curriculum in both countries. I began by comparing and confirming the ratio of instruction hours of Mathematics to the total instruction hours of all the subjects at as whole. This comparison was done of the elementary and middle school mathematics. The next part of the study was to compare in detail the purposes of revised mathematics in elementary and middle schools of both countries. Particular attentions was paid to the important revised points of Japanese elementary school Mathematics. Finally, I concluded by comparing the contents of elementary school Mathematics of the two countries. New mathematic text books in both countries having been published by revised curriculum, puts the future task in comparing, in detail, the concrete contents of each textbook.

• Journal of Astronomy and Space Sciences
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• 제17권2호
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• pp.295-308
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• 2000

OSMI(Ocean Scanning Multi-Spectral Imager) raw image data(Level 0) were acquired and radiometrically corrected. We have applied two methods, using solar & dark calibration data from OSMI sensor and comparing with the SeaWiFS data, to the radiometric correction of OSMI raw image data. First, we could get the values of the gain and the offset for each pixel and each band from comparing the solar & dark calibration data with the solar input radiance values, calculated from the transmittance, BRDF (Bidirectional Reflectance Distribution Function) and the solar incidence angle($\beta$, $\theta$) of OSMI sensor. Applying this calibration data to OSMI raw image data, we got the two odd results, the lower value of the radiometric corrected image data than the expected value, and the Venetian Blind Effect in the radiometric corrected image data. Second, we could get the reasonable results from comparing OSMI raw image data with the SeaWiFS data, and get a new problem of OSMI sensor.

• 대한안전경영과학회지
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• 제17권4호
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• pp.97-103
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• 2015

The people who are in the noise factory are difficult to hear and recognize about fire and to evacuate quickly when a fire occurs. This study was conducted to analyze workplace's background noise of 31 factories in Incheon and to know the workplace noise level comparing to fire alarm sound level. The measured average noise level was 96.8dB(A). Noise level of measured result was exceeded as 6.8dB(A) comparing to NFSC (National Fire Safety Code) noise level of 90dB. NFPA suggests that when background noise exceeds 85dB or more than that, other methods should be considered to know alarm sound. Also fire alarm sound should exceed more than 15dB(A) comparing to background noise level. Therefore it was concluded that the design of the fire alarm systems should not be applied to the workplace without considering background noise and it needs to be improved with regulations and the systems.

• 한국표면공학회지
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• 제32권3호
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• pp.372-376
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• 1999

The deposited Cu film on the ferrite magnet was more deposited comparing with that on the plastic magnet. The Cu film became thicker on the S pole comparing with that on the N pole in the both of magnets. The thickness and texture coefficient of deposited copper film affected with direction of line of magnetic force. The difference of pole had little or no effect to the texture coefficient of deposited nickel film. The reaction rate on ferrite magnet and S pole was faster comparing with that on plastic magnet and N pole.

• Journal of Medicine and Life Science
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• 제15권2호
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• pp.84-88
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• 2018

The aim was to evaluate different results from using crude incidence rate (CIR) instead of agestandardized incidence rate (AIR) when comparing groups having different age structures. After selecting a report using CIRs, AIRs and their 95% confidence intervals(CI) was calculated from the raw data. The statistically significant difference between CIR and AIR was decided based on AIR's 95% CI. Comparing with CIRs, AIRs were under-estimated. In addition, there were no statistical significance of annual trends(P=0.59). These findings are an additional evidence using AIR when comparing level of occurring infectious diseases on groups with different age structures.

• 보건교육건강증진학회지
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• 제11권2호
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• pp.48-56
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• 1994

In order to study the factors influencing upon right medication of antibiotic for the consumers who can easily buy antibiotic from pharmacy, the study carried out questionnaires to 568 consumers who bought antibiotics from pharmacies located in Seoul And Kyung-gi do from the 1st of February, 1994 to the 28th of the same month. Materials have been analyzed with $X^-test$ of SAS, and its results are as follows. 1. Among 568 objects of this study, the group which can medicare antibiotic properly (the right use group of antibiotic) is 45.5% with 258, while the group which does not recognize correctly the use of antibiotic or does not have any information about it (the abuse group of antibiotic) is 54.6% with 310. 2. Knowledge for advantage of antibiotic the right use group has is high in comparing with that of the abuse group (p<0.001), and also in case of pregnancy, understanding for an adverse reaction of antibiotic is high (p<0.001). The right use group has had many chances to take health education (p<0.001), and the way to buy antibiotic is very safe (p<0.001). But there is no outstanding difference for recognition of an adverse reaction of antibiotic between two groups. 3. In comparing with the abuse group, the right use group keeps well taking time of antibiotics as directions (p<0.001), and keeping rate of antibiotic dosage is high (p<0.001). Also the experiences of an adverse reaction of antibiotic is low (p<0.001). 4. In comparing with the abuse group, the right use group has high educational backgrounds (p<0.001) and many experiences of the education for health promotion (p<0.001), while there is no difference in age, sex, and economic status. 5. In comparing with the abuse group, the right use group has taken antibiotic many times (p<0.001), and there are many antibiotic takers of his/her family (p<0.01). 6. In comparing with the abuse group, the right use group has made much effort not only to check blood pressure and the pulse (p<0.05) but also for food habits (p<0.05). But there is no outstanding difference in the effort to get health information and the effort for regular exercises between these two group. 7. In comparing with the abuse group, the right use group has made an exertion in buying foodstuffs (p<0.001). But there is no big difference in efforts to keep the good attitude for physical health and mental heath, and sleeping hours between these two group.

• Communications for Statistical Applications and Methods
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• 제15권2호
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• pp.273-282
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• 2008

An essential aspect of music is structure. Beran (2004) introduced a method of comparing piano plays via circular statistics based on the fact that there is circular structure in music. We expand the application of this method to a pair of two pop songs and discuss the possibility of applying it to detecting musical plagiarism. Circular statistics provides an objective view point comparing the musical works.