• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.169-169
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• 2022

최근 기후변화와 도시화로 인해 집중호우, 홍수 등 극한 강우의 빈도와 규모가 증가하고 있는 추세이다. 또한, 극한 강우의 빈도가 증가함으로 가능최대강수량(Probable Maximum Precipitation, PMP)에 관한 관심도 증가하고 있다. 가능최대강수량의 경우 대규모 수공 구조물, 댐의 설계나 가능최대홍수량(Probable Maximum Flood, PMF) 산정에 사용 되며, 세계 기상 기구(World Meteorological Organiztion, WMO)는 가능최대강수량 산정 방법으로 수문기상학적 방법, 통계학적 방법, 포락 곡선 방법을 제안하고 있으며, 통계학적 가능최대강수량 산정방법으로는 Hershfield가 제안한 방법을 제시하고 있다. Hershfield가 제안한 방법의 경우 빈도계수를 사용하며, Hershfield(1961)는 빈도계수의 값을 15로 제안하였으나, 1965년에 빈도계수는 강우 지속시간과 평균에 따라 5~20 값을 갖는 노모그래프를 제안하였다. 본 연구에서는 빈도계수 산정 방법, 노모그래프를 이용한 빈도계수의 값 2가지를 산정한 후 국내 가능최대강수량 보고서와 비교하여 통계학적 가능최대강수량 산정 방법을 결정한 후, 결정된 빈도계수 산정 방법을 SSP시나리오에 이용하여 미래의 통계학적 가능최대강수량을 산정하여 가능최대강수량의 변화를 분석하고자 한다.

• Journal of Korean Physical Therapy Science
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• v.5 no.3
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• pp.633-642
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• 1998

This study researched 30 subjects. Among them, 15 students, who were experimental group, had lumbago. They received massages during 12weeks(4 times/ week). The effects of massage is fellowing: 1. It represented the discrepancy between the comparison group and the experimental group by toe touching, there was no differences in the comparison group(p<0.05). 2. It represented the discrepancy between the comparison group and the experimental group by trunk and neck, there was no difference in the experimental group, but there were significant differences in the comparison group(p<0.05). 3. It represented the discrepancy between the comparison group and the experimental group by leg elevation, there was no difference in the experimental group, but there were significant difference in the comparison group(p<0.05). 4. It represented the discrepancy between the comparison group and the experimental group, but there were signifiant differences in the comparison(p<0.05).

• Communications for Statistical Applications and Methods
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• v.17 no.2
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• pp.193-204
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• 2010

Recently, researchers of the various fields where the spatial analysis is needed have more interested in spatial statistics. In case of data with spatial correlation, methodologies accounting for the correlation are required and there have been developments in methods for spatial data analysis. Lattice data among spatial data is analyzed with following three procedures: (1) definition of the spatial neighborhood, (2) definition of spatial weight, and (3) the analysis using spatial models. The present paper shows a spatial statistical analysis method superior to a general statistical method in aspect estimation by using the trimmed mean squared error statistic, when we analysis the spatial lattice data that outliers are included. To show validation and usefulness of contents in this paper, we perform a small simulation study and show an empirical example with a criminal data in BusanJin-Gu, Korea.

• 한국가스학회:학술대회논문집
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• 1997.09a
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• pp.284-291
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• 1997

배관망의 해석은 유체역학을 필요로 하며 관내의 유체의 거동과 운전 상태에 따른 유동해석을 위해 여러 식들이 사용되어왔다. 본 연구에서는 정상상태의 유량방정식을 사용해 경인지역가스 배관망에 대한 수학적 모델을 만들고 모사 및 분석을 수행하였다. 개발된 수학적 모델에서 얻어진 데이터에 통계학적인 방법을 도입해 통계학적 모델을 만듦으로써 통계학적 모델을 이용한 배관망 해석의 가능성에 대해 검토하였다.

• Water for future
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• v.14 no.2
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• pp.71-79
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• 1981

This study is established of simulation models form the stochastic and statistic analysis of monthly rainfall and monthly runoff on south Han river. The time series simulation of monthly runoff is introduced with a linear stochastic model for simulating synthetic monthly runoff data. And, time series model of monthly pricipitation and monthly runoff is introduced to be a pure random time series with known statical parameter, which is characterized by an exponential recession curve with one parameter, and is develope expressing the statistical parameter for length of carryover.

• Journal of Convergence for Information Technology
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• v.11 no.11
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• pp.304-311
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• 2021

The purpose of this study is to empirically research the effect of jaycustomers behavior perception on emotional dissonance, job enthusiasm, and management performance. The sample was 327 beauty workers. The research methods were conducted by frequency analysis, factor analysis, reliability analysis, correlation analysis, and simple regression analysis. First, the study shows it was confirmed that the perception of jaycustomers behavior causes emotional dissonance and loss of job enthusiasm for beauty professionals. Second, it was confirmed that the perception of the behavior of jaycustomers had a statistically significant effect on emotional dissonance. Third, the perception of the behavior of jaycustomers had a statistically significant effect on management performance. Fourth, emotional dissonance had a statistically significant effect on job enthusiasm. Fifth, it was confirmed that management performance had a statistically significant effect on job enthusiasm. Therefore, it is believed the perception of jaycustomers behavior negatively affects beauty professionals.

• The Journal of Society for e-Business Studies
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• v.19 no.3
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• pp.125-141
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• 2014

Nowadays, overflowing data produced every second from the internet make people to be difficult to search for the useful information. That's why people have invented and developed unique tools that they get some relevant information. In this paper, the recommender system, one of the effective tools, is used and it helps us to get the useful information that we want by using demographic information to predict new items of interest. The demographic recommender system in this paper computes users' similarity using demographic information, age and gender. So we performed demographic analysis on movie ratings on Internet Movie Database (IMDB) web site that movies are rated by thousands of people, where users submitted a movie rating after they watched a recent popular film. Meanwhile, we can understand that user's ratings, among various determinants of box office, is very essential factor in the study on recommendation of movie. This paper is aimed at analyzing movie average ratings directly given by film viewers, categorizing them into groups by sex and age, investigating the entire group and finding the representative group by examining it with F-test and T-test. This result is used to promote and recommend for the target group only. Therefore, this study is considerably significant as presenting utilization for movie business as well as showing how to analyze demographic information on movie ratings on the web.

• 레미콘
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• no.6 s.24
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• pp.35-38
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• 1990

• Proceedings of the Korean Society of Food and Cookery Science Conference
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• 1985.04a
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• pp.103-104
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• 1985

• The Journal of Korean Physical Therapy
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• v.17 no.4
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• pp.485-492
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• 2005

환자에 대한 기록은 일정한 형식을 가지고 환자 내원 초기부터 환자 및 의료진의 요구와 관리목적에 부합한 효과적인 평가, 치료계획, 치료적 중재를 수립할 수 있게 만드는 필수적인 일련의 상호관련학적 의사소통 도구임과 동시에 치료사가 환자관리에 포함된 사고 과정을 분석하는 데 도움을 주며 문제해결에 대한 사고를 체계화하는데 있어 중요한 역할을 한다. 본 연구의 목적은 물리치료사의 일반적 특성과 임상기록의 실태, 임상기록의 중요성을 인식하고 임상활동의 문제점을 개선하며 기록의 체계화를 이루어 임상기록의 활성화와 나아가 물리치료의 질적 향상과 물리치료 서비스에 대한 효율성을 높이는데 있다. 이 연구는 전국 의료기관이나 보건관련기관에서 근무하는 물리치료사를 선정하였다. 2005년 7월1일부터 8월30일 사이에 구조화된 설문지 320매를 직접 전달해 치료사가 작성한 설문지 314매를 직접 수거하였다. 분석 방법으로는 백분율과 빈도, Kuskal-Wallis Test. Pearson Chi-Square, Mann-Whitney U로 검정하였다. 잘못 표기한 응답자 1명을 제외한 응답자 총 313명 중 남자 142명 (45.2%), 여자 171명 (54.5%) 이었으며, 25세 이상 29세 이하 연령층이 119명 (37.9%)으로 가장 많이 분포하였다. 근무처에 따른 근무 개월, 일일 평균 환자수는 통계학적 검정으로 유의한 차이가 있는 것으로 나타났다(p<.05). 근무처에 따른 임상기록 작성에서도 통계학적 검정이 유의하였다(p<.05) 임상기록 작성이 효율적인 치료. 치료사 만족도에도 통계학적으로 유의한 결과가 나타났다(p<.05).