• 한국컴퓨터정보학회논문지
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• 제10권6호
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• pp.65-74
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• 2005

본 논문에서는 비디오의 자동분류를 지원하기 위한 기반기술로서. 변형된 $x^{2}$-테스트와 자동 임계치 결정 알고리즘을 이용한 장면전환 검출 방법을 제안하였다. 변형된 $x^{2}$-테스트는 기존의 컬러 히스토그램과 각 채널 공간(RGB)에 NTSC표준에 따른 명암도 등급을 따로 계산하여 채널의 차이 값을 보다 세분화 할 수 있으며, 두 프레임사이의 상대적인 컬러 값 차이를 강조하는 기존의 $x^{2}$-테스트를 결합하여 보다 강건한 장면전환을 검출할 수 있다. 자동 임계치 결정 알고리즘은 연속된 프레임들로부터 변형된 $x^{2}$-테스트를 이용하여 추출된 차이 값을 이용한다. 먼저, 주어진 전체 차이 값들로부터 평균과 표준편차를 구하며, 이 평균값을 만족하는 차이 값들로부터 다시 평균과 표준편차를 계산하며, 이러한 연속적인 평균값 및 표준편차의 계산으로부터 표준편차가 가장 큰 시점에서의 평균값을 기준으로 임계치를 결정하는 방법이다. 제안된 방법은 다양한 비디오 데이터에서 실험되었으며, 실험결과 제안된 방법은 자동 임계치 결정에 효율적이며, 신뢰할만한 장면들을 검출하였다.

• The Journal of Korean Physical Therapy
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• 제11권1호
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• pp.55-61
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• 1999

The purpose of this study was to compare the moment and power of affected Side and those of unaffected side during gait in hemiplegic patients after stroke. Force plate ana kinetic gait analysis was used. The following is resulted from this study. 1. In the hip joint, moment values had not difference between affected side and unaffected side. Power values had difference between affected and unafected side. 2. In the knee joint, moment values and power values had difference between affected side and unaffected side. 3. In the ankle feint, moment and power values had not, difference between affected side and unaffected side.

• 한국생활과학회지
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• 제7권2호
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• pp.63-73
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• 1998

To get well-fitted ready-made clothings with beautiful silhouettes, it's better to classify body forms into several forms and to assign sizing within each form than to grade just based on body size regardless of body styles. This study illucidated the importance of drop value in the results of surveying the current values of sizing and grading. Therefore, it's meaningful to get the classification of body form with appropriate distribution of drop values of the body, and the distribution of drop value and the frequency of each form is very helpful to name the combined sizing or coverage of ready-made clothes. This study aimed at classifying body forms with various drop values using multivariate analysis for sizing and grading. Factor analysis and cluster analysis were done using measured values from 346 unmarried women. The results are as follows: 1. The factor which explains body forms was obtained by factor analysis, and the representative major 18 items which have important roles in classifying body forms were selected among the measured values with high factor loading and communality. 2. The body forms were classified into 8 groups based on the charateristics, frequencies and distributions of them obtained from cluster analysis. 3. Each classified body form showed conspicuous difference in drop value and the difference of body form mainly resulted from the difference between waist and hip rather than the difference between bust circumference and waist in Korean unmarried women.

• 한국음향학회지
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• 제28권8호
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• pp.755-760
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• 2009

본 논문에서는 근거리에 위치한 수중 장애물의 탐지 성능을 향상시키기 위해 잔향의 영향을 감소시키는 여러 기법 중 특이 값 차이를 이용한 잔향 감소 기법을 적용한다. 특이 값 차이를 이용한 잔향 감소 기법은 중심 빔 신호에 잔향과 표적이 포함되어 있다고 가정하고 인접한 빔 신호를 참조 신호로 사용하여 중심 빔 신호와의 특이 값 차이를 이용함으로써 잔향 신호를 감소시킨다. 그리고 한국 근해에서 십자형 구조의 송수신 장치를 통해 얻어진 실측 데이터를 이용하여 수중 장애물 탐지에서의 제시한 기법의 타당성을 검증한다.

• 대한약침학회지
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• 제2권1호
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• pp.63-71
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• 1999

Counts of RBC and proportion of packed cell volume(PCV) showdc no difference among treatment groups. the values of hemoglobin in rat showed a tendeuy to increase in herbal-acupuncture group, however the values of hemoglobin in guineapig and rabbit showed no significant difference in the treatnent groups. the count of WBC showed high in the chishiI(BL52) herbal-acupuncture group. The proprtion of neutrophils showed no significant difference in rabbit, however the values in guinea-pig and rat showed a tendency to increased in herbal-acupuncture groups. The proportion of lymphocytes in rabbit and guinea-pig showed a tendency to decreast in herbal-acupuncture groups, however the values in rat showed no significant difference. The proportion of Eosinophils and monocytes showed no significant difference in all the treated groups. Results from this study indicated that shinsu(BL23) and chishil(BL52) herbal-acupuncture with palmijihwangtang elivate the biglogical function in Rabbit Guinea-pig and Rat.

• 한국축산식품학회지
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• 제41권4호
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• pp.739-747
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• 2021

This study examined the measurement conditions of the texture profile analysis (TPA) experiments that are typically used to measure the physical properties of sausage. As the measurement conditions (compression ratio and cross-head speed) were changed, the significant differences between the values of textural parameters (hardness, adhesiveness, springiness, cohesiveness, chewiness) of samples changed. Furthermore, among the measurement conditions, there was more variation in the significant difference between the value of samples due to a change in the compression ratio than due to a change in the cross-head speed. The highest variation in significant difference was observed between the values of cohesiveness of samples due to changes in measurement conditions, whereas the lowest variation in significant difference was observed between the values of springiness of samples due to change in measurement conditions. Therefore, it is desirable to provide a clear basis for setting specific measurement conditions for TPA test, since significant differences in the values of textural parameters of samples were caused by differences in cross-head speed or compression ratio, not by a difference in samples, when analyzing the cohesiveness of sausage, especially.

• 한국응급구조학회지
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• 제10권3호
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• pp.21-32
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• 2006

Purpose: This study was performed to examine the ethical values of EMT students. Method: The results below were based on the revised questionnaires, which can be applicable to EMT from the using questionnaires by Kim(2001), with a sample of 140 students consisting of 50 freshman, 40 sophomore and junior 50, conducted October 9-11, 2006. Data were analyzed using SPSS 13.0 in terms of means and standard deviation, $x^2$-test, one way ANOVA, multiple regression analysis. Results: The ethical value was deontological ethics and statistically significant difference between three groups(F=3.072, p<0.049). Means and standard deviation of freshman is $2.86{\pm}0.28$, sophomore is $2.75{\pm}0.25$, junior is $2.88{\pm}0.21$. In the area of Human life, subjects showed utilitarian disposition. But there were no statistically significant difference between three groups. In the area of patient relationship, all students of three groups took on deontological ethics, but there were no statistically significant difference. In the area of task relationship, all students of three groups took on deontological ethics, but there were no statistically significant difference. In the area of coworker relationship, all students of three groups took on deontological ethics, but there were no statistically significant difference. As a results of multiple regresstion analysis, the associated factors with ethical values were second students, participation of ethical education, a firm belief of ethical values. Conclusion: This results showed that education of ethical values must instruct to EMT students. More and more, It is necessary to make an further application tool of EMT.

• 대한수학회보
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• 제53권4호
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• pp.1213-1235
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• 2016

We prove a uniqueness theorem of nonconstant meromorphic functions sharing three distinct values IM and a fourth value CM with their shifts, and prove a uniqueness theorem of nonconstant entire functions sharing two distinct small functions IM with their shifts, which respectively improve Corollary 3.3(a) and Corollary 2.2(a) from [12], where the meromorphic functions and the entire functions are of hyper order less than 1. An example is provided to show that the above results are the best possible. We also prove two uniqueness theorems of nonconstant meromorphic functions sharing four distinct values with their difference operators.

• 대한물리치료과학회지
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• 제12권4호
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• pp.69-77
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• 2005

The purpose of this study is to estimate how much the motility of affected and unaffected lower limb respectively would have effects on their ambulation through comparing the difference between their affected and unaffected lower limb and studying the correlation between such difference and their ambulation. In addition, the study also intends to find out remedial measures suitable for improving their ambulation with relevant physical treatment. To do this, a quantitative electromyogram(QEMG) test was done to hamstring of affected and unaffected lower limb so as to yield IP values. Based on such IP values, RMS(root mean square) values as the total sum of IP values were found with QEMG analysis system (made by Medelec Co.) and then the ambulation depending on the difference in muscular strength were analyzed by ink-foot print method as well as the corresponding statistics were processed by T-test through SPSS. The differences in muscular strength of hamstring in unaffected limbs of hemiplegic patients only affect stride length. It was statistically significant. The effect of difference in muscular strength of the hamstring in affected limb of hemiplegic patients on their ambulation was very different between strong and weak group in terms of walking velocity, step per minute, stride and step length, showing statistically significant difference(p<.05). Although there was a difference in the step length of the affected limb, it was not statistically significant(p>.05). For the unaffected hamstring, there were significant differences of stride length between in unaffected limb and in affected limb. For the affected hamstring, there were also significant differences in walking velocity, step per minute, stride and step length. Besides, it was found that the difference of the muscular strength between strong and weak group was at the highest.

• 대한전자공학회논문지
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• 제22권3호
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• pp.23-30
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• 1985

디지탈 필터의 구성이 차분방정식에 근거하였을 때, 그 주파수 특성을 구하는 방법은 계산에 의해 할 수 있는 식이 없으므로 Z-변환식으로 미루어 짐작하거나 실험에 의해 측정하는 방법 밖에 없다. 본 논문에서는 차분방정식으로 표현된 함수의 주파수 응답 진폭특성을 계산하는 방법을 Parseval의 정리를 도입하여 제시하고, 이 식의 타당성을 확인하기 위해 실제로 두 종류의 디지탈 필터를 설계 제작하고 실험 측정하였다. 측정된 결과와 Z-변환식에 의한 계산값, 본 논문에서 제시한 계산식에 의한 값을 서로 비교하였다. 그 결과 차분방정식에 의해 계산된 값이 훨씬 실제 측정값에 접근하였다. 또한 Z-변환식에 의한 결과보다 예리한 roll-off 특성을 보여 줌을 확인했다. 따라서 차분방정식을 기초로 하여 구성된 디지탈 필터의 진폭응답 특성은 Z-변환식보다 차분방정식에 의한 계산이 보다 나은 실제적인 결과를 예측해 준다.