• 한국수학교육학회지시리즈B:순수및응용수학
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• 제3권2호
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• pp.113-115
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• 1996

An Application of the Extended Iversen-Tsuji Theorem As an immediate consequence of the extended Iversen-Tsuji Theorem. We have presented a result on the boundary behavior of analytic functions on a simply connected domain. It is shown that F. Bagemihl's result for the case of capacity 0 can be obtained as a special case of $\frac{1}{2}$-dimensional Hausdorff measure zero.

• 오토저널
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• 제10권3호
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• pp.38-44
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• 1988

It is important to control the axial forces of high tension bolts such as the automobile, construction machine, aircraft, marine engine bolts. However, the direct method to measure the axial forces of bolts practically have not been found out. The ultrasonic techniques is based on the principles that the bolt tensile elongation and ultrasonic velocity changes are proportional to the axial force below the yield point of the materials. From the result of the experiment, the coefficient of acoustoelasticity k could be measured as - 11.18*10$_{-5}$m $m^{2}$k $g_{f}$./.

• 한국수학교육학회지시리즈B:순수및응용수학
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• 제4권1호
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• pp.87-92
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• 1997

Some function of a complete finite measure space (for short, CFMS) into the duals and pre-duals of weakly compactly generated (for short, WCG) spaces are considered. We shall show that a universally weakly measurable function f of a CFMS into the dual of a WCG space has RS property and bounded weakly measurable functions of a CFMS into the pre-duals of WCG spaces are always Pettis integrable.

• 대한수학회지
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• 제38권2호
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• pp.283-296
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• 2001

The Heisenberg inequality associated with the uncertainty principle is extended to an infinite dimensional abstract Wiener space (H, B) with an abstract Wiener measure p$_1$. For $\phi$ $\in$ L$^2$(p$_1$) and T$\in$L(B, H), it is shown that (※Equations, See Full-text), where F(sub)$\phi$ is the Fourier-Wiener transform of $\phi$. The conditions when the equality holds also discussed.

• 한국관개배수논문집
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• 제3권2호
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• pp.53-56
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• 1996

The purpose of this study is to make it clear that the P. E. strip textile function well as a roughness element in a rather highly distorted scale model. A series of test has been conducted in a flume to measure the effect of P. E. strip textile for the f

• 대한환경공학회지
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• 제36권6호
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• pp.434-441
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• 2014

본 연구에서는 석면해체 제거작업에 따른 작업자 및 주변 환경에 미치는 영향 등을 파악하기 위해 서울시내 건축물 석면해체 제거 사업장을 대상으로 공기 중 석면농도를 조사하고, 측정결과가 "석면안전관리법"에서 명시된 사업장 주변의 석면배출허용기준에 적합한지를 살펴보았다. 서울시내 총 37개소 석면해체 제거 사업장에서 총 288개의 공기 중 시료를 분석하였으며, 전체 288개 시료 중 101개 시료에서(35%) 검출한계($7fiber/mm^2$) 이하로 나타났다. 이 때 전체 공기 중 석면농도 평균값은 $0.003{\pm}0.002f/cc$로(최대 0.013 f/cc) 대부분의 공기 중 석면농도는 "석면안전관리법"에서 명시된 사업장 주변의 석면배출허용기준 0.01 f/cc 이하로 나타나 서울시내 건축물 석면해체 제거 사업장에서의 석면 노출가능성은 우려할 수준이 아닌 것으로 판단된다. 채취지점별로 살펴보면, 부지경계선(148개), 위생설비입구(25개), 작업장주변(실내)(7개), 작업장주변(실외)(11개)에 대한 공기 중 석면농도 결과, 각각 53개(36%), 5개(20%), 1개(14%), 4개(36%) 시료에서 검출한계 이하로 나타났으며 평균농도는 각각 $0.002{\pm}0.002f/cc$(최대 0.008 f/cc), $0.004{\pm}0.002f/cc$(최대 0.009 f/cc), $0.004{\pm}0.002f/cc$(최대 0.007 f/cc), $0.004{\pm}0.002f/cc$로(최대 0.008 f/cc) 나타났다. 또한 음압기(13개), 폐기물보관지점(27개), 폐기물반출구(9개), 거주자주거지역(48개)에 대한 공기 중 석면농도 결과, 각각 3개(23%), 8개(30%), 2개(22%), 25개(52%) 시료에서 검출한계 이하로 나타났으며 평균농도는 각각 $0.004{\pm}0.002f/cc$(최대 0.009 f/cc), $0.005{\pm}0.004f/cc$(최대 0.013 f/cc), $0.005{\pm}0.003f/cc$(최대 0.009 f/cc), $0.003{\pm}0.002f/cc$0로(최대 0.009 f/cc) 나타났다.

• 대한안전경영과학회지
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• 제15권4호
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• pp.427-433
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• 2013

Recently, 18F-FDG PET based CT scan was a critical examination that the after, before plan diagnosis and treatment of tumors. But, due to the distortion of SUV that should be proportional to the metabolic rate of glucose in the tumor, the other measurement methods are being on study. In this study, compared the degree of distortion of SUV that according to the volume of the tumor analysis ROI and VOI using the NEMA IEC Phantom. The results, the SUVmax, mean value are rapidly decreased with threshold value 500 mm2 interval of the ROI analysis, 1500 mm3 interval of the VOI analysis. When compared SUVmax value SUVmean, ROI and VOI analysis VOI measurements was 1.077 times higher SUVmax was 0.981 times highe compared to the value of the ROI measurement. Compare MTV, SUV 2.0 as measured by the volume of the VOI to Volume showed a slightly higher results(Volume / MTV = $93.4 %{\pm}14.8 %$). Considering the above results, Tumor evaluation by 18F-FDG PET / CT scan Consider each threshold value should be analyzed due to larger SUV's Distortion depending on the size of the tumor. VOI analysis is recommended. because it showed the VOI analysis is higher than the ROI analysis SUVmax and lower SUVmean due to VOI analysis than once as a measure of the wider area as measured ROI analysis. MTV (R2 = 0.999), a result close to the actual size of the tumor. but, more research is needed in this regard, because SUV according to the standards of value are affected.

• 분석과학
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• 제14권4호
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• pp.1075-1081
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• 2001

기기중성자방사화 분석법은 핵 분석기술의 대표적인 방법으로 비파괴-동시 다원소분석의 장점과 함께 절대측정값에 의해 정량 할 수 있다는 특징을 갖고 있다. 최근에는 정확도와 편의성을 만족할 수 있는 $k_0$-정량법을 사용한 기기중성자방사화 분석법이 세계적으로 일반화되고 있다. 본 연구에서는 $k_0$-법의 적용을 위하여 이 방법의 전체적인 개념의 소개와 함께 $k_0$-파라미터를 측정하고자 하였다. 이를 위하여 $k_0$-법의 개념이해와 정량에 필요한 인자들의 정의 및 파라미터인 $Q_0$(${\alpha}$)와 f 값을 결정하기 위한 수식과 실험적 측정방법 등을 요약하였고 중성자조사공에 따라 특성 값을 갖는 ${\alpha}$와 f 값을 하나로 연구용원자로의 방사화분석용 조사공(NAA#1)에서 측정하여 $k_0$-법의 도입을 위한 기반을 마련하였다.

• Genomics & Informatics
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• 제10권2호
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• pp.81-87
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• 2012

Large-scale copy number variants (CNVs) in the human provide the raw material for delineating population differences, as natural selection may have affected at least some of the CNVs thus far discovered. Although the examination of relatively large numbers of specific ethnic groups has recently started in regard to inter-ethnic group differences in CNVs, identifying and understanding particular instances of natural selection have not been performed. The traditional $F_{ST}$ measure, obtained from differences in allele frequencies between populations, has been used to identify CNVs loci subject to geographically varying selection. Here, we review advances and the application of multinomial-Dirichlet likelihood methods of inference for identifying genome regions that have been subject to natural selection with the $F_{ST}$ estimates. The contents of presentation are not new; however, this review clarifies how the application of the methods to CNV data, which remains largely unexplored, is possible. A hierarchical Bayesian method, which is implemented via Markov Chain Monte Carlo, estimates locus-specific $F_{ST}$ and can identify outlying CNVs loci with large values of FST. By applying this Bayesian method to the publicly available CNV data, we identified the CNV loci that show signals of natural selection, which may elucidate the genetic basis of human disease and diversity.

• 복식
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• 제35권
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• pp.181-193
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• 1997

The objectives of this study were to classify bedclothes purchase motives and to examine how bedclothes purchase mo-tives and design preferences very accord-ing to age and income. Samples were 217 housewives residing in metropolitan area. Questionnaire included 17 Likert type items of bedclothes pur-chase motive measure 12 items of color preference 7 items of pattern (floral geo-metric abstract stripe plaid polka dot, and paisley pattern). The results of the study were as fol-lows. 1. 5 factors of bedclothes purchase mo-tives were derived by factor analysis ; F .1 'design': F 2. "brand' ; F.3. 'deficiency'; F. 4. 'fabric' F.5. 'economical reason' 2. Subjects perceived design and utility area to be important motives for bed-clothes purchase. 3. Cholor preference of bedclothes was in the order of white pale blue pale green and pale orange. Pattern preference was in the order of stripe plaid solid color floral and polka dot pattern. The combi-nation of patterned fabric and solid color fabric was liked better than the combina-tion of analogic color and the combination of contrasting color. 4. The women in their 20's liked navy blue red stripe plaid pattern and solied color better than 30's and 40's . 40's liked abstract and paisley pattern better then 20's and 30's 5. Low income group lied navy blue and solid color fabric more than the mid-dle and high income group and liked ab-stract pattern less than the middle and high income group. 6. Women in their 20's perceived design to be important motive more than 30's and 40's. 30's perceived brand to be im-portant motive than 20's and 40's 7. High income group perceived design to be important motive more than the middle and low income group. Low in-come group perceived brand and fabric to be less important motives than the middle and high income group, The present findings provide that age and income had a significant effect on bedclothes purchase motives and design preferences of houesewives. The results that white color and the combination of patterned fabric and solid color fabric were liked best indicated that women prefered clean image and chacteristics de-sign of bdeclothes.