• Journal of Digital Convergence
• /
• v.18 no.9
• /
• pp.221-228
• /
• 2020

The purpose of this study is to examine the relationship between the sexual knowledge and contraceptive attitude and gender sensitivity of the nursing students. The data were collected from 169 nursing students from November 2019 to December 2019 at U city and analyzed using descriptive statistics, t-test, ANOVA, Scheffe test, Pearson's correlation analysis, and multiple regression. As a result of this study, the contraceptive attitude of nursing students showed a positive relationship with gender sensitivity(r=0.357, p<0.001), and it was the factor that affected gender sensitivity(β=0.356, p<0.001). Therefore, it is necessary to make and apply the programs to enhance the gender sensitivity for the nursing students, and the college and the government supports are required to increase the contraceptive attitude.

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.33 no.3
• /
• pp.55-62
• /
• 2010

Currently, cost estimation is very important to the government acquisition programs to support decisions about funding and to evaluate resource requirement as key decision points. Parametric cost estimating models have been used extensively to obtain appropriate cost estimates in early acquisition phase. However, they have many restrictions to ensure the cost estimating result in Korean defense environment because they are developed in the U.S.A. environment. In order to obtain a good R&D cost estimate, developing our own CERs (Cost Estimation Relationships) using historical R&D data is essential. Nevertheless, there has been little research to develop our own CERs. In this research, we established a CER development process and found some cost drivers in the historical movement weapon system R&D data. The R&D CER is developed using the PCR(Principle Component Regression) method to remove multicollinearity among data and to overcome the restriction of the insufficient number of sample. At least, this research is meaningful as a first attempt in terms of defining the CER development process and obtaining our own R&D CER based on the historical data in Korean weapon system R&D environment.

• The Korean Journal of Malacology
• /
• v.17 no.1
• /
• pp.13-18
• /
• 2001

The relationship between shell length and ring radius in each ring group was expressed as a regression line. Therefore, there is a correspondence in each ring formation. Based on the monthly variation of the marginal index (Ml') of the shell, it is assumed that the ring of this species was formed once a year during the period of August to October, and the main period of the annual ring formation was August through September. The relationship between shell length (SL) and total weight (TW) was expressed by the equation TW = 2.2476 $\times$ 10$^{-5}$ SL$^{3.536}$ ($r^2$= 0.90). Shell length (SL) and shell height (SH; mm) were highly correlated with the equation SH = 0.7545 SL - 0.0145 ($r^2$= 0.93). The shell length (SL)-shell width (SW) relation was expressed by the equation SW = 0.5336 SL- 2.4253 ($r^2$= 0.87). Growth curves for shell length and total weight fitted to the von Bertalanffy's equation were expressed as follows: SL$_{t}$ =60.02[1 - e$^{-0.6458(t-0.3895)}$ ], Twt = 43.63[1 - e$^{0.6458(t-0.3895)}$ ]$^{3.536}$ .

• Proceedings of the Korea Water Resources Association Conference
• /
• 2019.05a
• /
• pp.429-429
• /
• 2019

최근 들어 이상기후 등 다양한 환경적 요인으로 인해 국지적이고 집중적인 호우가 빈발하고 있으며 도로상의 교통체증과 도로재해가 사회적으로 큰 문제가 되고 있다. 이러한 문제를 해결하기 위해서는 실시간, 단기간 이동성 강우정보 기술과 도로 기상정보를 활용할 수 있는 방법에 대한 연구가 필요하다. 본 연구는 차량의 AW(AutoWiping) 기능을 위해 장착된 강우센서를 이용하여 강우정보를 생산하는 기술을 개발하고자 하였다. 강우센서는 총 4개의 채널로 이루어져있고, 초당 250개의 광신호 데이터를 수집하며, 1시간이면 약 360만 개의 데이터가 생산되게 된다. 5단계의 인공강우를 재현하여 실내 인공강우실험을 실시하고 이를 통해 강우센서 데이터와 강우량과의 상관성을 W-S-R관계식으로 정의하였다. 실내실험데이터와 비교하여 외부환경 및 데이터 생성조건이 다른 실외 데이터의 누적값을 계산하기 위해 Threshold Map 방식을 개발하였다. 강우센서에서 생산되는 대량의 데이터를 이용하여 실시간으로 정확한 강우정보를 생산하기 위해 빅 데이터 처리기법을 사용하여 계산된 실내 데이터의 Threshold를 강우강도 및 채널에 따라 평균값을 계산하고 $4{\times}5$ Threshold Map(4 = 채널, 5 = 강우정보 사상)을 생성하였고 강우센서 기반의 강우정보 생산에 적합한 빅데이터 처리기법을 선정하기 위하여 빅데이터 처리기법 중 Gradient Descent와 Optima Rainfall Intensity을 적용하여 분석하고 결과를 지상 관측강우와 비교검증을 하였다. 이 결과 Optima Rainfall Intensity의 적합도를 검증하였고 실시간으로 관측한 8개 강우사상을 대상으로 강우센서 강우를 생산하였다.

• Journal of Convergence for Information Technology
• /
• v.11 no.6
• /
• pp.55-63
• /
• 2021

The purpose of this study is a descriptive research study to understand the relationship between sexual attitude, sexual knowledge and gender sensitivity of nursing college students, and to analyze the effect on gender sensitivity. T-test, ANOVA, Pearson's Correlation Coefficient, and multiple regression analysis were performed Using SPSS 22.0 version. As a result of the study, gender sensitivity was positively correlated with sexual attitude (r=.383, p=.000), and the factors affecting gender sensitivity of nursing students were sexual attitude (𝛽=.365, p=. 000). In the future, it can be used as basic data for the development of a program that can establish a correct sexual attitude in order to increase the gender sensitivity of nursing college students.

• Women's Health Nursing
• /
• v.10 no.4
• /
• pp.342-350
• /
• 2004

Purpose: It has been suggested that approximately 40% of women between 40 and 64 years of age cease their sexual activity. The aim of this study was to establish the basic data for FSD(female sexual dysfunction) and FSD-related factors in regional urban and rural areas of Korea. Method: Three hundred twenty five women over 20 years of age and resident in regional urban and rural areas were analyzed by a visit survey with an organized questionnaire. The female sexual function index(FSFI) for measurement of sexual dysfunction was used. The significance between the degree of sexual dysfunction and characteristics of the participants was analyzed by a t-test and ANOVA test. The relationship between the degree of sexual dysfunction and related factors was analyzed by Pearson's correlation coefficient. Results: All analyzing tools including the FSFI had a high validity for measuring. The FSFI in Korean women was $19.97{\pm}4.87$ and ranged from 2 to 29. Old age, menopause, medication, no contraception usage and longer marital duration were significantly related with a lower FSFI score. Pearson's correlation coefficient revealed the significance in degrees of sexual distress (r=-.469, p=.000), sexual attitude(r=.305, p=.000) and a stressful life event(r= -.141, p=.038) with the sexual function index score. Conclusion: Women with sexual dysfunction should be evaluated for these sexual function-related factors in the history taking, and this data can be a basis for study for sexual dysfunction.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.19 no.4
• /
• pp.454-462
• /
• 2018

This study was conducted to examine SNS addiction proneness and interpersonal satisfaction among undergraduate students and the relationships between these two variables, as well as to establish baseline data for appropriate intervention of SNS addiction prevention. The participants of this study were 316 undergraduate students in D and K city, and data were collected between June 30 and July 30, 2017. Data were collected by a self-administered online survey and analyzed by descriptive statistics, t-tests, and Pearson's correlation coefficients using SPSS. The results showed that SNS addiction proneness and interpersonal satisfaction were negatively correlated (r=-0.57, p<0.01), indicating students with higher SNS addiction had lower interpersonal satisfaction. There were no significant differences in SNS addiction proneness and interpersonal satisfaction by gender (t=0.05, p=0.963), number of SNS networks (t=0.66, p=0.513), or number of SNS-only networks (t=-1.24, p=0.216). Students who used SNS for data collection showed significantly higher interpersonal satisfaction (t=3.02, p=0.030); however, there was no significant differences in SNS addiction proneness among purposes for using SNS (t=0.39, p=.759). The results of this study will be useful baseline data for developing an intervention to improve interpersonal satisfaction and prevent SNS addiction among undergraduate students.

• Transactions of the Korean Society of Mechanical Engineers A
• /
• v.35 no.11
• /
• pp.1415-1422
• /
• 2011

Sheet aluminum alloys used in manufacturing of machine structures for transportation show the difference of crack growth speed depending on thickness under the constant fatigue stress condition. The referred thickness effect is a major fatigue failure property of sheet aluminum alloys. In this work, we identified the thickness effect in fatigue test of thick plate and thin plate of Al 2024-T3 alloy under the constant fatigue stress condition, and presented the thickness effect to a correlative equation, $U_{i}^{equ}=f(R_t)$ which is determined by the shape factor, thickness ratio, $R_t$ and the loading factor, equivalent effective stress intensity ratio depending on thickness, $U_{i}^{equ}$. And we analyzed quantitatively the crack growth retardation behavior in thin plate compared to thick plate by the thickness effect using ${\Delta}K$ conversion method. We obtained such values as decrement of thickness(DoT), decrement of stress intensity factor range, ${\Delta}K$ (DoS) and identified the relation between them to present the nature of thickness effect in this work.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.17 no.12
• /
• pp.634-642
• /
• 2016

This research investigated the relationship among character, interpersonal relations, and adjustment to college life of university nursing students as well as to identify the factors that affect college life. A self-report type survey was conducted on a total of 180 nursing students in a city between May 30 and Jun 09 of 2016. According to our findings, the relationship between the adjustment to school life and character (r=.506, p<.001) as well as between the adjustment to school life and personal relations (r=.585, p<.001) showed a significantly positive correlation in the medium level. With improved personal relationships and with higher level of character, nursing students appear to more successfully adjust to college life. It was also found that an explanatory power for the adjustment to college life of these factors is 46% (F=75.28, p<.001). The study results indicate that it is necessary to develop a program that can improve interpersonal relationships and character of nursing students in order to enhance the adjustment process to college life.

• Journal of Astronomy and Space Sciences
• /
• v.26 no.2
• /
• pp.157-170
• /
• 2009

BVR observations for 52 standard stars were performed using the 1-m reflecter with 2K CCD System of Chungbuk National University Observatory (CBNUO) in 2008. We obtained 1,322 CCD images to establish a correlation between our bvr system and the standard Johnson-Cousins BVR system. We derived the tentative equations of transformation between then as follows; V = v-0.0303(B - V) + 0.0466 B - V = 1.3475(b - v) - 0.0251 V - R = 1.0641(v - r) - 0.0125 Using these equations the magnitudes in V, B-V, and V-R for 197 stars were obtained.