• Title/Summary/Keyword: 분산분석(ANOVA) 방법

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The comparative study of user satisfaction on various implant engine system (다양한 임플란트 엔진 시스템에 대한 사용자 만족도 비교)

  • Lee, Du-Hyeong;Lee, Kyu-Bok
    • Journal of Dental Rehabilitation and Applied Science
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    • v.30 no.1
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    • pp.9-15
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    • 2014
  • Purpose: Implant engine system is composed of the handpiece, micromotor, control box and foot switch. The aim of this study was to evaluate the satisfaction of the implant engine systems in terms of convenience-design and to examine the relation with the experience of implant surgery. Materials and Methods: Three implant systems were evaluated: SurgicXT/X-SG20L, INTRAsurg300/CL3-09, XIP10/CRB26LX. For this comparative study, 30 dentists were included and the satisfaction was measured using a structured questionnaire. One-way analysis of the variance (ANOVA) and multiple regression analysis were used within and between the groups. Results: Total satisfaction differed from each other (P < 0.05). The convenience score was more associated with the total satisfaction than design score. Moreover, the implant surgery experience affected several assessments. Conclusion: Collectively, in a cross-sectional study model, the design of implant system significantly affects its total satisfaction and the surgery experience can be influential factor in the evaluation of implant engine system.

Study on Residential Environment Improvement Directions of Different Housing Types through an Analyses on Expected Value and Perceived Value (기대가치와 인지가치 분석을 통한 주택유형별 주거환경 개선 방향에 관한 연구)

  • Jin, Hyun-Soo;Kim, Kyong-Hoon;Kim, Jae-Jun
    • Journal of the Korea Institute of Building Construction
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    • v.13 no.4
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    • pp.382-390
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    • 2013
  • Recently, the housing problem has been recognized as a matter of housing supply with a certain environmental level and not simply a matter of handing as a quantitative problem, and the demand for pleasant residential environments and requirements for residential environments are increasing more and more. However, it is necessary to establish the directions for improvement of the residential environment according to the house type, as the requirements and levels of satisfaction differ. This study aimed to deduce the level of resident satisfaction with the residential environments according to house type, and determine the direction for improvement of the residential environment. To achieve this, the difference between the house types was analyzed through ANOVA analysis and T-Test, and the major factors on the improvement direction of the residential environment were derived through Action-grid analysis.

A Study on the Job Burnout of Medical Librarians in Korea (의학도서관 사서들의 직무 소진에 관한 연구)

  • Chan, Hye Rhan;Kim, Jeong A
    • Journal of the Korean Society for Library and Information Science
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    • v.51 no.1
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    • pp.245-269
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    • 2017
  • To assess and understand the level of job burnout among the medical librarians and identify the factors affecting it, email survey, consisting of questions regarding personal background, organization characteristics, degree of burnout, and coping activities, was administered for two weeks in December 2016, to the librarians in 138 institutions affiliated with the Korean Medical Library Association. MBI-GS is used as a burnout measuring instrument. Data collected from 158 librarians (response rate 65.6%), were analyzed by descriptive statistics, t-test, ANOVA, and correlation analysis methods. According to MB-GS norm, respondents experience moderate level of exhaustion and professional efficacy, however the level of cynicism is extremely high. There are significant statistical differences in burnout, depending on age, medical librarian certificate, work experience, type of library, job coverage, and coping activities. There are also statistical significant correlations between workload, role conflict, decision making process and performance evaluation, organization communication, IT environment, continuing education and burnout. Based on the results, recommendations to alleviate burnout are suggested in individual, organizational, and professional association context.

Effect of Myofascial Relaxation Technique and Passive Stretching on Lower Extremity Body Shape of Working Women (근막이완기법 및 수동적 스트레칭이 직장여성 하지 체형에 미치는 영향)

  • Kim, Jeong Eun;Kim, Jong Du
    • Journal of Naturopathy
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    • v.11 no.2
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    • pp.152-157
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    • 2022
  • Background: There have been no reports of studies on the effect of a combination of myofascial relaxation technique and passive stretching on the lower extremity body shape of working women. Purpose: This study aimed to examine the effects of myofascial relaxation technique and passive stretching on body composition and body composition analysis (intracellular fluid, skeletal muscle mass, body cell mass), etc. Methods: The subjects of this study were 30 women at a body shape management center who had many problems with their subjective lower extremity body shape. Fifteen subjects were in the experimental group and the control group. The experimental group applied the fascial relaxation technique twice a week for nine weeks. The control group conducted stretches by themselves at least twice a week according to the active stretching instructions. The ANOVA program analyzed the data. Results: In the experimental group, intracellular fluid (p < .05), skeletal muscle mass (p < .048), and body cell mass (p < .047) were significantly increased. Conclusion: The lower extremity edema of working women decreased

An Analysis of the Healing Effects of Forest Therapy and Horticultural Therapy (숲치유와 원예치료의 치유효과 분석)

  • Park, Sun-A;Jeong, Moon-Sun;Lee, Myungwoo
    • Journal of the Korean Institute of Landscape Architecture
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    • v.43 no.3
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    • pp.43-51
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    • 2015
  • Stresses from desolate urban environments cause illnesses and worsen health conditions of urban residents, while natural environments have a positive influence on human. Natural healing programs such as forest therapy and horticultural therapy can be differentiated by the characteristic of activity space. However, previous studies of healing programs have focused on either forest therapy or horticulture therapy and there is a limit to comprehending the effects of adopting and connecting various healing programs. This study compares and analyzes the physiological and psychological effects of forest therapy and horticultural therapy to identify the effects and differences by types of healing programs. The before and after effects of horticultural therapy and forest therapy are measured by experiment and survey for 5 days with 5 subjects in each program. For physiological reaction, blood pressure, pulse, and cortisol levels are measured and the profile of moods states(POMS) is used to measure psychological reaction. Collected data are analyzed with the analysis of variance(ANOVA) and Paired-Sample T-test in SPSS 18.0. The results of this study are as follows: 1) forest therapy and horticultural therapy show positive effects in physiological and physiological aspects, 2) forest therapy is more effective than horticultural therapy in physiological relaxation and stress mitigation, 3) horticultural therapy has a tendency to alleviate depression more effectively than forest therapy. In conclusion, this study contributes to providing fundamental information for the development of healing programs and design guidelines for healing spaces through identifying the characteristics of each healing program.

Preference Analysis of Forest Therapy Program according to the Stress Level (스트레스 수준에 따른 산림치유 프로그램 선호도 분석)

  • Kim, Youn-Hee
    • Korean Journal of Environment and Ecology
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    • v.30 no.3
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    • pp.434-442
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    • 2016
  • This study examined differences in the preference of the fest therapy program regarding stress level. Using convenience sampling method, the surveys on the preferred type of forest healing program and social and psychological stress scales was carried out for adult male and female. As a basis of Psycho social Stress Scale (PWI-SF: Psychosocial Well-being Index Short Form), the adult 620 people were classified such as healthy group, potential stress group, high-risk stress group. The data were analyzed by use of SPSS 21.0 program. To see the difference in preferences for forest therapy program between the three groups according to stress levels, it was analyzed using one-way ANOVA. Depending on the stress levels, there were differences in the preferences of forest healing program such as breathing, breathing exercises, walking in the forest, listening to the sound of water flowing, viewing the forest, counseling, consultation and expert coaching, stress-related lectures, communication-related lectures, forest bathing wind bathing sun bathing. High-risk stress group preferred cognitive based program such as counseling, consultation and expert coaching, stress-related lectures, communication-related lectures. Healthy group appeared to prefer highly emotional approach of the program to take advantage of the five senses such as breathing, breathing exercises, walking in the forest, listening to the sound of water flowing, viewing the forest, forest bathing, wind bathing, sun bathing. Noticeable preference difference was not observed in the potential stress group. It is hoped this study will serve as a basis for the development of forest healing program regarding stress level.

Psychosocial Adaptation in Multicultural Adolescents' with Perception of Parent-Child Relationships (다문화 가정의 부모-자녀 간 관계 특성에 따른 자녀의 심리사회적 적응 차이)

  • Yeon, Eun Mo;Choi, Hyo-Sik
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.8
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    • pp.44-51
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    • 2020
  • The purpose of this study was to identify latent profiles of multicultural adolescents' psychological outcomes (school participation, self-esteem, and difficulty related to multicultural identity) depending on their perception of the parent-child relationship. A total of 5,540 samples from the Multicultural Adolescents Panel Study (MAPS) conducted by the National Youth Policy Institute in 2018 were analyzed by using Latent Profile Analysis and one-way ANOVA. The best-fitting model identified five groups according to their perception of the parent-child relationship: (1) father low-mother average (6.5%), (2) father average-mother low (2%), (3) father low-mother low (18.6%), (4) father average-mother average (31.2%), and (5) father high-mother high (41.7%). According to the results of one-way ANOVA, the father high-mother high (41.7%) group of adolescents showed more school participants and higher self-esteem and multicultural identity than the other profiled groups. The father average-mother average (31.2%) group of adolescents also scored higher than the other three groups (father low-mother average (6.5%), father average-mother low (2%), and father low-mother low (18.6%) of adolescents). The results of this study imply that improving multicultural adolescents' perception of their parent-child relationships would be important in improving psychological outcomes.

The Effect of Golf Exercise through Rehabilitation Training for Middle-aged Women (중년여성의 재활트레이닝을 통한 골프운동의 효과)

  • Lee, Seung-Do
    • Journal of Korea Entertainment Industry Association
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    • v.14 no.4
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    • pp.223-235
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    • 2020
  • The purpose of this study is to verify the effect of golf exercise through rehabilitation training for middle-aged women and to suggest the right golf activities. To achieve the purpose of this study, the subjects were 40-50 year old middle-aged women in Jinju, Gyeongnam Province in February 2020. The subjects of this study were 8 women who were controlled by the subjects who needed to be corrected in golf swing orbit. For the accurate measurement test, the program was conducted for 10 days after explaining the purpose and utilization plan of the study. The data collected by testing level of physical strength and distance before and after the experiment were finally analyzed and used. The statistical processing of the collected data was conducted using SPSS win18.0 program, and the statistical techniques were calculated by means of frequency analysis, average(M) and standard deviation(sd), and t-test, one-way ANOVA and multiple regression analysis were conducted. The results of this study through these methods and procedures are as follows. First, rehabilitation training of general characteristics showed a high difference in golf exercise. Second, there was a high difference in the level of rehabilitation training and physical fitness in swing orbit and distance. Third, rehabilitation training and physical fitness level had a high effect on swing orbit and distance.

Effects of Persuader and Persuasion Message of Bicycle Exploration Journey (자전거 탐방여행의 설득원과 설득메시지의 효과)

  • Park, Joung-Koo
    • Journal of the Korean Institute of Landscape Architecture
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    • v.37 no.5
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    • pp.13-23
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    • 2009
  • This study investigated the effects of thae persuader and the persuasion message in order to reduce carbon dioxide emissions and activate the exploration journey using bicycles, a form of green transportation, in this green society age. Furthermore, the effects that predictive variables related to the implementation of an infrastructure for bicycles have on the intentions toward an exploration journey using bicycles were examined. The questionnaire survey was administered to 257 respondents for 9 days from March 14 to March 22, 2009. Since Gyeongju has a number of cultural relics that people can look at in one day, Gyeongju is ideal for examining a variety of tourist opinions about exploring cultural relics using bicycles. In conclusion, it was found that the 'persuader' and 'persuasion message' enhanced the desire for bicycle exploration journeys from 'will use a bicycle if possible' to 'want to use a bicycle'. In accordance with two-way ANOVA results on the desire for bicycle exploration journeys by persuader and persuasion message, the persuasion approach emphasizing health effects and geared toward bicycle enthusiasts was significantly effective. Furthermore, the most effective approach was the persuasion strategy emphasizing the 'citizens' and 'health', and 'citizens' and 'eco-friendly' among the effects created by connection of persuader and persuasion message.

An Experimental Study on the Optimum Design of Sirocco Fan by Using Taguchi Method (다구찌 방법을 이용한 시로코 홴의 최적설계에 관한 실험적 연구)

  • Kim, Jang Kweon
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.23 no.6
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    • pp.761-768
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    • 1999
  • This paper is studied to find the optimum condition of double-inlet Sirocco fan installed in an indoor PAC for low noise operation by the Taguchi method. The goal of this study is to obtain the best combination of each control factor which results in a desired flowrate of Sirocco fan with minimum variability. In this study, the parameter design of the Taguchi method is adopted for robust design by the dynamic characteristic analysis using orthogonal arrays and S/N ratios. The flowrate measurements are conducted by using a multiple-nozzle-type fan tester according to the orthogonal array L9($3^4$). The results of this study can be summarized as follows ; (i) The optimum condition of control factor is a set of where A is an inner to outer diameter ratio($D_1/D_2$), B is a width to outer diameter ratio($L/D_2$), C is a blade attachment angle(${\theta}$) and D is a number of blade(Z), (ii) The flowrate under the optimum condition satisfies the equation $y=0.0384{\cdot}M$ where M is a signal factor, namely number of revolution. The flowrate performance improves about 7.3% more largely as compared with the current condition, which results in about 35RPM reduction of number of revolution for the target flowrate $18.5m^3/min$, and (iii) The sensitivity analysis shows that the major factors in contribution to flowrate performance are A, B, and D ; the percentage contributions of each control factor are 44.01%(Z), 26.77%($D_1/D_2$) and 20.42%($L/D_2$).