• Human Ecology Research
• /
• 제53권6호
• /
• pp.655-665
• /
• 2015

This study classified respondents by food-lifestyle and investigated differences in diet-related attitudes and demographic variables among food-lifestyle groups. Diet-related attitudes consisted of variables such as interest in diet, trial number of diet, diet period, weight loss, diet motivation, verification of products approved by the Ministry of Food and Drug Safety, verification of manufacturer's reliability, examination of damage cases and side effects, and awareness of consumer protection law. This study administered a questionnaire survey to adults between the ages of 20 and 39 who lived in Daegu and Uijeongbu from November 17th to December 14th 2014. Data collected from 293 respondents were analyzed using descriptive statistics, factor analyses, cluster analysis, analysis of variance (ANOVA) and chi-square tests. Four clusters (passive eating habit group, active eating habit group, convenience oriented group, and taste and health oriented group) were developed according to four factors of food-lifestyle (health-conscious, popularity-seeking, taste-seeking, convenience-seeking). The results of the ANOVA and chi-square tests indicated significant differences in interest in diet, awareness of consumer protection law, verification of products approved by the Ministry of Food and Drug Safety, verification of manufacturer's reliability, examination of damage cases and side effects, gender, education levels and household monthly income levels among food-lifestyle groups.

• Corrosion Science and Technology
• /
• 제21권5호
• /
• pp.360-371
• /
• 2022

Electropolishing has various parameters because an electrochemical reaction is applied. Accordingly, experiments to determine factors and levels of electropolishing conditions are in progress for various materials. The purpose of this investigation was to optimize conditions for electropolishing using the taguchi method for UNS S31603. Factors such as electrolyte composition ratio, electrolyte temperature, and electropolishing process time were selected. Electropolishing was optimized using analysis of variance (ANOVA), signal-to-noise ratio (the smaller the better characteristics), and surface analysis. Results of ANOVA revealed that only the electrolyte composition ratio among factors was effective for surface roughness. As a result of statistical analysis of the signal-to-noise ratio, the highest signal-to-noise ratio was calculated under electropolishing conditions with sulfuric acid and phosphoric acid ratio of 4:6, an electrolyte temperature of 75 ℃, and electropolishing process time of 7 minutes. In addition, the surface roughness after electropolishing under the above conditions was 0.121 ㎛, which was improved by more than 88% compared to mechanical polishing.

• 유통과학연구
• /
• 제12권4호
• /
• pp.23-30
• /
• 2014

Purpose - The purpose of this study is to analyze the efficiency of retail businesses by dividing domestic retailers into discount stores, super supermarkets (SSMs), and department stores. It suggests retail-business investment strategies by using data environment analysis (DEA) to analyze how input elements such as store area, parking lot area, number of employees, and sales management expenses for the convenience of customers positively affect business performance measurements such as sales and visiting customers per day. Research Design, Data, and Methodology - The DEA model calculates a ratio of the weighted mean of various inputs to the weighted mean of various outputs and measures the efficiency of a specific decision making unit (DMU). The study included 19 companies (five discount store DMUs, ten SSM DMUs, and four department store DMUs). Because the business elements and sizes of retail store DMUs used in this analysis are different, average per-store input and output variables were used. Data were collected from "The Yearbook of Retail Industry in Korea (2012)." DEA analysis was used to determine differences in efficiency among discount stores, SSMs, and department stores in terms of the business elements of each retail business. It was also used to determine what business elements were excessively invested in by comparing and analyzing efficiency by business elements using SPSS software's ANOVA (Analysis of Variance). Results - The CCR and BCC efficiency analysis found that the efficiency of discount stores is low. We believe that the saturation state of discount stores is a major factor. The ANOVA analysis confirms the VRS hypothesis with a statistically significant difference among the three groups, based on an analysis confidence interval of 95%. CRS and SE were not found to be significantly different among the three groups. As for the post hoc test, which concretely shows differences by group, the Scheffe's multiple comparison analysis test found the average differences between group 1 (discount stores) and group 2 (SSM) to be statistically significant. Conclusions - The DEA efficiency analysis implies that investment in input elements, including store area, parking lot area, and sales management expenses, were excessive in the case of discount stores, while SSMs need to invest more in promotion activities such as gifts, events, and coupons for customer management. Department stores have found that small companies invest excessively in input elements. Department stores need to invest in differentiated shopping mall complexes. This study was limited in acquiring statistical data; various input variables which might have shown more secure customer management and promotional expenses could not be applied. As the study was limited in various aspects of the efficiency analyses because financial analyses of the companies and of causal relationships, including satisfaction and loyalty of visiting customers, were not done, these aspects will be examined in the next study.

• 분석과학
• /
• 제20권3호
• /
• pp.219-226
• /
• 2007

유리 같은 미세 증거물은 전이(transfer)의 결과로서 법과학 실험실에 자주 제시되는 증거물의 일종이다. 이들 시료에서 미량 원소 분석의 반복성과 재현성을 검토하였다. 미세 증거물의 유출원을 규명하기 위하여 LA-ICP-MS를 사용하여 분산 분석이 이루어졌다. 짝지음비교가 모든 시료에 대하여 이루어졌고 각 시료는 이동식별을 위하여 총 [n(n-1)/2] (n :시료의 수) 쌍이 비교 되었다. 이번 실험의 목적은 법과학 시료의 다원소분석에 대한 LA-ICP-MS의 이용 가능성을 검토하는 것이다. 유리의 경우, 2개의 제조 공장으로 부터의 12개 시료를 수집하여 분석에 사용하였다. 유리에서 미량원소 분석용 표준품 NIST 612를 사용하여 31개 원소를 분석하고 분산분석(ANOVA)이 수행되었다. 원소들은 정밀도와 시료간 분산값을 고려 하여 4개의 그룹으로 나뉘어 졌다. 11개의 원소(209Bi, 90Zr, 121Sb, 178Hf, 59Co, 238U, 208Pb, 140Ce, 118Sn, 49Ti, 137Ba)가 선택 되었고 137Ba 만으로 66개의 가능한 pair들 중 6개를 구별(p<0.05)하지 못하였으나, 49Ti과 137Ba의 두 원소를 사용할 경우 모든 시료들이 구별 가능 한 것으로 나타났다(p<0.05). 결론적으로 LA-ICP-MS에 의한 다원소 분석은 법과학 시료의 이동 식별에 잠재력있는 분석기법이라 하겠다.

• 한국콘텐츠학회논문지
• /
• 제9권10호
• /
• pp.360-367
• /
• 2009

이 연구는 여성경찰관을 대상으로 근무특성에 따른 여성경찰관의 역할인식 차이를 분석하여 수사분야 등 경찰목표달성과 관련된 역할정립을 새로이 하고자 시도하였다. 근무특성은 실무적 차원에서 분석적 의미가 있는 계급과 근무지역, 근무기간 등으로 하였으며, 역할인식은 과업역할과 집단유지역할 그리고 개인역할로 세분하였다. 그 결과 계급별, 근무지역별 집단간 차이는 과업역할과 집단유지역할에서 유의한 차이를 보였으며 계급이 높고 사건 발생율이 많은 지역에서 근무하는 여성경찰관은 과업역할인식과 집단유지역할인식에서 높은 평균값을 나타냈다. 근무기간의 경우에는 근무경력이 장기간인 여성경찰관이 과업역할과 집단유지역할인식에서 높은 평균값을 나타내었다. 이러한 분석은 그들이 경찰목표 달성을 위한 범인검거 및 예방 등에 대한 강한 과업역할 인식과 조직화합에 대한 높은 집단유지역할 인식을 갖고 있다는 의미 있는 시사점을 제시한다고 볼 수 있다.

• Journal of Hospice and Palliative Care
• /
• 제8권1호
• /
• pp.45-51
• /
• 2005

목적: 말기 암 환자 간호사의 직무소진에 영향을 미치는 요인을 파악하여 말기 암 환자들에 대한 최적의 간호수준을 유지하기 위한 소진예방 기초 자료를 제공하고자 하였다. 방법: 편의표집방법에 의해 말기 암 환자 간호경험이 있는 300명의 간호사를 대상으로 자 기기입식 설문지를 통해 조사하였다. 평균, 표준편차, t-test, ANOVA, 다중회귀분석 등이 수집된 자료 분석을 위해 실시되었다. 결과: 전체 응답자의 소진평균은 2.71로 높지 않은 편이었으며 소진유형별로는 신체적 소진이 가장 높았다. 연령과 근무연한이 신체적 소진과, 연령, 근무연한 및 호스피스교육 유무가 정서적 소진에서, 연령 및 종교가 정신적 소진에서 통계적으로 유의한 차이를 나타낸 변수였다. 다중회귀분석결과 종교, 병동만족도 호스피스교육이 전체 소진을 설명하는 변수였으며 소진유형을 설명하는 변수에는 약간 차이가 있었다. 결론: 연구 결과를 일반화할 수 있는 연구방법 및 한국적 현실에 적합한 변수 및 세부 소진 영역을 보완한 후속연구가 요구된다.

• 지역사회간호학회지
• /
• 제26권4호
• /
• pp.321-329
• /
• 2015

Purpose: This study aimed to explore the prevalence of bullying and to examine the effect of bullying on psychological well-being including depression, self-esteem, and academic major satisfaction among nursing students during clinical training. Methods: Three hundreds one nursing students who were recruited from three universities in D City were assessed with self-report questionnaires of bullying experience and psychological well-being. Data analyses were performed using the SPSS 21.0 program, which included one-way ANOVA, independent t-test, Pearson's correlation, and multiple linear regression analyses. Results: More than three quarters of the participants experienced bullying during their clinical training, and their experience of being bullied was a significant predictor of psychological well-being even after controlling for perceived academic performance, relationship between nurses and students, teachers' or nurses' help to deal with bullying, and religion. Conclusion: Bullying was an issue among nursing students during clinical placement. Bullying experience yielded negative psychological outcomes associated with high depression, low self-esteem, and low academic major satisfaction. Practical guidelines are required in nursing education to protect students from the possible harm of bullying in clinical settings during training.

• 근관절건강학회지
• /
• 제20권2호
• /
• pp.141-150
• /
• 2013

Purpose: This study was conducted to identify relationships among nursing activities, the use of body mechanics, and job stress in nurses with low back pain. Methods: Participants were 225 nurses with low back pain working at an university hospital. The data were collected with self-reported questionnaires at March, 2012 and analyzed by descriptive statistics, t test, ANOVA, Scheff$\acute{e}$e test and multiple regression analyses. Results: There was significantly a higher degree of pain in subjects who working at special units including intensive care units and emergency room than at general wards. Low back pain was negatively correlated with the use of body mechanical principles while it was positively associated with the degree of job stress. According to results of multiple regression analyses, low back pain was significantly associated with the use of body mechanics and job stress in nurses working at general ward and special units including intensive care units and emergency room. Conclusion: The use of the principles of body mechanics and reducing job stress are important to prevent low back pain in nurses. It is necessary to develop and apply stress management and education program about the use of the principles of body mechanics.

• 한국의류산업학회지
• /
• 제17권5호
• /
• pp.815-827
• /
• 2015

This study analyzes the characteristics by age and type for middle aged and elderly women foot shapes aged 40-69 years. ANOVA, factor, and cluster analyzed middle aged and elderly women's foot shapes. The results of the study are as follows. First, higher age groups tended to have smaller foot lengths, ball/instep circumferences, circumferences, and ball heights with larger heel height values and higher degrees of gathering of toe 1 and toe 5 toward the feet reference axis. Second, foot lengths were 220 mm-240 mm and the ball circumference's size symbol in high frequency sections were distributed from E to EEEE in the 40s and 60s groups and from D to EEEE in the 50s group. Third, eight factors were extracted through the factor analyses of middle aged and elderly women's foot measurement items. Fourth, a cluster analyses classified the subjects into four types. Type 1 is a normal foot type with medium foot length and small ball circumference and type 2 is a long and flat foot type with a type with large foot length and ball circumference values as well as small ball height values. Type 3 is a thick foot type with a medium foot length, large ball circumference, large ball height and type 4 is a toe deformation foot type with medium foot length, small ball circumference, and a high degree of toe gathering toward the center.

• 가정과삶의질연구
• /
• 제24권5호
• /
• pp.191-203
• /
• 2006

This study examined the experience of family of origin among those who decided consensual divorce. Questionnaires regarding family relationships, alcohol problem, domestic violence, and health in family or origin were distributed to 500 people who visited Busan Family court for filing divorce and 3% questionnaires were collected by the staff of the Family court in April, 2004. As for analyzing the data, using SPSS/WIN 10.0 program, t-test and ANOVA were conducted. The results of analyses are as follows. First, more respondents tended to report that theirs parents' marital relationship was bad in their childhood than parent-child relationship. Second, 41% of all respondents reported that their parents have had alcohol problems, and 32% reported that there had been domestic violence between their parents. Third, the overall score of health in family of origin was lower than the medium score, which implies the lower health in family of origin among the divorce deciders. Lastly, there were some differences in experiences of family of origin in terms of some demographic variables such as gender, education, and religion. Women tended to perceived their family relationship more positively than men did. Also, highly educated group of divorce deciders reported lower parental alcohol problem and higher health in family of origin than the group of lower education. Respondents which had specific religions reported that their parents have had less alcohol problems, and higher health in family-of-origin.