• 한국잠사곤충학회지
• /
• 12호
• /
• pp.1-4
• /
• 1970

뽕나무의 정엽중 즉 수량을 예측하고 수량과 제형질과의 관계를 알고자 우리나라 상수주요품종 4품종을 재료로 상수의 8개형질상호간의 유전상관, 표현형상관 그리고 환경상관을 계산한바 그 결과를 요약하면 다음과 같다. 1. 각형질상호간의 표현형공분산, 유전공분산 그리고 환경공분산을 계산한 바 제1표와 같이 표현형공분산은 유전공분산의 값과 근사하나 다소 높고 환경공분산의 값은 그 변동이 심하다. 2. 각형질상호간의 유전상관, 표현형관계 그리고 환경상관 등은 계산한바 제2표와 같이 유전상관은 표현형상관보다 그 값이 높고 지조장과 주당지수간, 주당지수와 지총중간에 1이상의 이상치가 보였다. 3. 지조직경과 제형질상호간에는 어느 경우에 있어서도 상관의 정도가 낮고, 정엽중 즉 수량과 제형질간의 상관관계를 본바 수량과 지조직경간에는 그값이 낮으나 기타 제형질은 수량과 높은 상관관계를 보였다. 뽕나무의 제형질중 예취전에 측정할 수 있는 지조장, 절간수, 지조직경, 주당지수의 4개형질이 수량의 예측이나 선발대상형질로서 중요한 형질이나 본실험의 결과 지조직경은 수량과 상관의 정도가 낮고, 주당지수는 전보의 결과에서 유전력이 낮았으므로 지금까지의 결과로는 지조장과 절간수가 더욱 중요한 형질로서 취급하여야 할 것으로 믿으며 이들 형질들과 수량과의 직접효과와 간접효과를 구명하여 보는 것이 앞으로 남은 한 과제가 될 수 있을 것으로 믿는다.

• 대한한방소아과학회지
• /
• 제26권4호
• /
• pp.38-43
• /
• 2012

Objectives: The purpose of this study was to investigate the relations between mother's temperament and child's and parenting attitude. Methods: One hundred twenty healthy mothers (above 20 ys) who has a child (7-11 ys) participated after informed consent. The temperament of the children was analyzed by the Junior Temperament and Character Inventory 7-11 (JTCI 7-11) by their mothers. The temperament of the mothers was analyzed by the Temperament and Character Inventory-Revised Short (TCI-RS) and the parenting attitude of the mothers was analyzed by the Parenting Attitude Test (PAT). The relations between mother and child temperament and parenting attitude were assessed using the Pearson correlation coefficient. Results: There were some significant correlations between maternal temperaments and child's temperaments and maternal parenting attitude. Maternal temperament and parenting attitude: Novelty seeking (NS) of mother had low positive correlations with punishment, high expectation and inconsistency. Harm avoidance (HA) had low positive correlations with high involvement and high expectation, and had weak negative correlations with supportive expression and rational explanation. Reward dependence (RD) had low positive correlation with rational explanation. Persistence (P) had low positive correlations with supportive expression, rational explanation and superintendence, and weak negative correlation with high expectation. Child's temperament and parenting attitude: NS of child had low positive correlations with achievement press, high involvement, punishment, high expectation and inconsistency. Low positive correlations were found in many sets such as HA and high expectation, RD and supportive expression and rational explanation, P and supportive expression and rational explanation. Conclusions: These results suggest that there are significant relations between mother and child temperament and parenting attitude the temperament of mother and child.

• 동의신경정신과학회지
• /
• 제16권2호
• /
• pp.35-42
• /
• 2005

Objective : The relations of the heart size and seven emotions were described in Dong Yi Bo Gam, and we aimed to identify the correlations of the patients with anxiety disorder and their heart sizes. Methods : The subjects were 15 patients with anxiety disorder and 20 control groups. Chest radiography were performed. We measured patients' heart sizes and compared with control groups. Results : 1. The signigicant difference of somatization, anxiety, depression scale and Panic anxiety scale in SCL-90-R in patients with anxiety disorder from controls was confirmed. 2. The difference of thoracic sizes in patients with anxiety disorder and controls had no correlations. 3. The difference of heart sizes in patients with anxiety disorder and controls had no correlations. 4. The difference of cardiothoracic ratio in patients with anxiety disorder and controls had negative correlations. Conclusions : Based on these results, the patients with anxiety disorders and their heart sizes had no correlations. But in cardiothoracic ratio had negative correlations. So heart size and seven emotions have significant correlation.

• Journal of Preventive Medicine and Public Health
• /
• 제30권2호
• /
• pp.327-341
• /
• 1997

It is a well known fact that obesity is an important cause of cardiovascular disease, emphasized by many studies. Recently, cardiovascular diseaase has been found to correlate not only to the extent of obesity, but also the fat distribution of the individual; especially, focusing on obesity of the abdomen. Unfortunately, the proposed indices for abdominal obesity are numerous, and the results vary according to the index chosen. Three-hundred and twelve bus drivers in November, 1995, were chosen as subjects of this study. The author chose to measure serum lipid levels, fasting blood sugar levels and blood pressure, that are thought to be important risk factors of cardiovascular diseases. Obesity indices were calculated using anthropometric measurements. We were able to evaluate the significance of obesity indices by examining correlations between these indices and the risk factors of cardiovascular disease. The results obtained were as follows: 1. The abdominal obesity indices and risk factors of cardiovascular disease, the levels of total cholesterol in the serum, fasting blood sugar levels, and diastolic blood pressure, increased significantly according to age. 2. There was a significant difference in the abdominal obesity indices according to drinking and smoking habits controlled for age. Among the risk factors of cardiovascular disease, triglyceride and diastolic pressures had significant differences according to the presence or absence of a drinking history controlled for age. 3. Although all obesity indices showed significant correlations, the weakest correlation was between BMI and abdominal diameter index and the strongest correlation was between sagittal diameter and sagittal diameter matched for height. 4. There was a negative correlation between HDL-cholesterol and obesity indices. The weakest correlation was between fasting blood sugar levels and both SD and SDH showed correlations with the risk factors. 5. There was a significant correlation between SD and total cholesterol in the serum and fasting blood sugars controlled for age, drinking, and BMI. 6. After categorizing the subjects into 2 separate age groups at the 40 year mark, in the less than 40 you old age group, controlled for drinking and BMI, the results of comparitive studies have shown correlations between total cholesterol serum levels and waist-hip ratio, conicity-index, and SD. There were correlations between fasting blood sugar levels and SD, ADI, and SDH. There were no correlations between obesity indices and both total cholesterol serum levels and fasting blood sugar levels in the greater than 40 year old age group. There were significant correlations between abdominal obesity indices and total serum cholesterol or fasting blood sugar levels in the less than 40 year old age group, but no correlations in the age group over 40. These correlated factors between abdominal obesity and cardiovascular disease are assumed to exist in Korea as well. Furthermore, in this study a high correlation was found between SD, SDH and the risk factors of cardiovascular disease. Even when controlled for age, drinking, smoking, and BMI, the correlations between risk factors of cardiovascular disease and these indices exist. Therefore, the obesity indices, SD and SDH may prove to be important prognostic indicators or risk factors of cardiovascular disease.

• Korean Chemical Engineering Research
• /
• 제47권5호
• /
• pp.599-607
• /
• 2009

본 연구에서는 천연가스와 관련된 정보 중 쉽게 구할 수 있는 발열량이나 비중만으로 비중(또는 발열량), 압축인자, 밀도 등을 계산할 수 있는 5가지 상관식을 도출하고자 하였다. 상관식 도출에 필요한 충분한 수의 기초 데이터를 생성하기 위해 SGERG 상태방정식을 발열량식으로 변형하여 사용하였고, 이렇게 생성된 데이터를 기초로 5가지 상관식을 도출하고 불확도를 평가하였다. 그 결과 대부분의 조건에서 상관식의 불확도가 0.1% 근방으로 나타나 천연가스 업계와 학계에서 사용될 수 있을 것으로 판단한다.

• 한국대기환경학회지
• /
• 제19권5호
• /
• pp.569-581
• /
• 2003

A method of synthetic time series generation was developed and applied to the simulation of homogeneous turbulence in a periodic 3 - D box and the hourly wind data simulation. The method can simulate almost exact sample auto and cross correlations of multiple time series and control non-Gaussian distribution. Using the turbulence simulation, influence of correlations, non-Gaussian distribution, and one-direction anisotropy on homogeneous structure were studied by investigating the spatial distribution of turbulence kinetic energy and enstrophy. An hourly wind data of Typhoon Robin was used to illustrate a capability of the method to simulate sample cross correlations of multiple time series. The simulated typhoon data shows a similar shape of fluctuations and almost exactly the same sample auto and cross correlations of the Robin.

• Asian-Australasian Journal of Animal Sciences
• /
• 제17권8호
• /
• pp.1039-1046
• /
• 2004

A model Indigenous Thai beef cattle breeding structure consisting of nucleus, multiplier and commercial units was used to evaluate the effect of changes in heritabilities of and genetic correlations between adaptation traits on genetic gain and profitability. A breeding objective that incorporated adaptation was considered. Two scenarios for improving both the production and the adaptation of animals where also compared in terms of their genetic and economic efficiency. A base scenario was modelled where selection is for production traits and adaptation is assumed to be under the forces of natural selection. The second scenario (+Adaptation) included all the information available for base scenario with the addition of indirect measures of adaptation. These measures included tick count (TICK), faecal egg count (FEC) and rectal temperature (RECT). Therefore, the main difference between these scenarios was seen in the records available for use as selection criteria and hence the level of investments. Additional genetic gain and profitability was generated through incorporating indirect measures of adaptation as criteria measured in the breeding program. Unsurprisingly, the results were sensitive to the changes in heritabilities and genetic correlations between adaptation traits. However, there were more changes in the genetic gain and profitability of the breeding program when the genetic correlations of adaptation and its indirect measures were varied than when the correlations between these measures were. The changes in the magnitudes of the genetic gain and profit per cow stresses the importance of using reliable estimates of these traits in any breeding program.

• 설비공학논문집
• /
• 제19권6호
• /
• pp.457-463
• /
• 2007

Various correlations of saturated vapor density in a truncated power series form are tested and compared in this study. Saturated vapor density correlation can be expressed relating logarithmic reduced density to the reduced temperature. Five types of correlation has been investigated using saturated vapor density data for 22 pure substance refrigerants from ASHRAE (American Society of Heating, Reftigerating and Air-Conditioning Engineers, Inc.) property tables and NIST (National Institute of Standards and Technology) Chemistry Webbook. Correlations are fitted to the data points by least squares method. Data points are equally weighted. The best type of correlation among the five types is suggested. The results obtained indicate that the best correlations with 3, 4, and 5 terms yield average AAD's (Average Absolute Deviation) of 0.27%, 0.04%, and 0.02%, respectively, while widely used conventional correlations with 3, 4, and 5 terms yield those of 1.19%, 0.61%, and 0.17%. The suggested type of correlation could reduce the number of terms while improving performance.

• 한국가정과학회지
• /
• 제9권3호
• /
• pp.23-36
• /
• 2006

The present study purposed to examine how the knowledge, consciousness and attitude affect life resources use of the subjects, first-year middle school students and their mothers, and ultimately, to provide basic materials for maximizing the effect of the education consciousness and attitude on environment-friendly life resource management in everyday living. The followings are the results of the analysis of the collected data. First, in the aspects of analysis of valiance in the general home environment factors of this research, there were some significance according to fathers and mothers' educational level, fathers' job, the type of a house about students and mothers' life resources use. Second, knowledge about middle school students' life resources use had negative correlations with attitude. But consciousness had positive correlations with attitude. Knowledge about their mothers' life resources use had negative correlations with attitude, but consciousness had positive correlations with attitude. The results of mothers were similar to those of middle school students. Mothers' consciousness and attitude had positive correlations with middle school students' consciousness and attitude.

• 대한설비공학회:학술대회논문집
• /
• 대한설비공학회 2009년도 하계학술발표대회 논문집
• /
• pp.798-803
• /
• 2009

In this study, dimensionless correlations of frost properties (i.e. the thickness and surface temperature of frost) on heat exchanger fin with nonuniform temperature distribution are proposed from frosting experiments. We analyzed the local fin temperature distribution, frost thickness and frost surface temperature on a 2D fin; in the airflow direction and the direction perpendicular to airflow. As a result, the frost growth on the fin had a close relation with fin heat conduction. The dimensionless correlations for the average frost properties were expressed as a function of dimensionless temperature, humidity ratio, Reynolds number, and Fourier number. These correlations agreed well with experimental data with the error less than 14%.