• Title/Summary/Keyword: industrial statistics

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Development of the Instrument for Assessment the Attitude toward Engineering (공학에 대한 태도 측정 도구 개발)

  • Choi, Yu-Hyun;Park, Ki-Moon;Ryu, Seung-Min;Lee, Jeong-Gyun
    • 대한공업교육학회지
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    • v.34 no.2
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    • pp.161-178
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    • 2009
  • This research was conducted to develop an assessment measure of attitude toward engineering. Based upon related document research and case studies, we came up with operational definition and category of attitude toward engineering as well as questionnaires to assess. After consulting with specialists and studying on relevant documents, we changed some of the 60 questions developed in the first phase or added new ones. One hundred and nine students who major in engineering were questioned by the 40 questions selected in the second phase. Using SPSS 14.0K statistics program, various techniques were used including factor analysis, validity analysis and correlation analysis. And the level of significance of statistical verification was 0.05. The result is as follows: Based on fundamental aspect of the attitude, this research focused on 3 different variables: cognitive variable such as 'attitude toward engineering value', affective available such as 'general attitude toward engineering and attitude toward engineering study', Behavior available such as 'participation in engineering activity'. Therefore, as a subcategory, attitude toward engineering value is classified into value as study and job, social value and personal value, general attitude toward engineering and attitude toward engineering study are divided into self-concept, self-efficacy, awareness, interest and cooperation. Also, participation in engineering activity is classified into attitude toward engineering study. After applying this measurement to the field, we integrated self-concept into self-efficacy, omitting one independent factor in the question. Finally, through Verimax, we developed 'Instrument of Assessment the Attitude toward Engineering(IAAE)' which consists of 3 variables, 9 subcategories and 39 questions.

A Satisfaction about Technical Specialized High School Supported by Seoul Metropolitan Office of Education (서울시교육청 지원형 공업계 특성화 고등학교의 만족도 분석)

  • Lee, Myung-Hun;Lee, Byung-Wook
    • 대한공업교육학회지
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    • v.37 no.1
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    • pp.1-19
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    • 2012
  • The purpose of this study was to analysis a satisfaction about technical specialized high school supported by Seoul metropolitan office of education. The study was carried out through questionnaire survey method. The population sample for the study constituted 894 completed questionnaires from sample of 1050 technical specialized high school students and parents. A survey questionnaire for students consisted of 20 scales, and it for parents consisted of 16 scales. Both descriptive and inferential statistics were employed for data analysis. Major findings of this study were as follows: First, satisfaction perceived technical specialized high school students supported by Seoul metropolitan office of education was high. In sub-variables of school satisfaction, 'school facilities' was the highest, and 'relation to teacher' was the lowest. Second, three related variables were found to be significant in affecting the satisfaction of technical specialized high school students supported by Seoul metropolitan office of education. They were grade of students, achievement of students, and school type(public school/private school). Third, their parents were satisfied with technical specialized high school supported by Seoul metropolitan office of education. Fourth, gender difference of parents and school type(public school/private school) had no appreciable affect on satisfaction of parents.

University Students' Major-interest agreement, the relationship between stress coping strategies and adaptation Department (대학생의 전공-흥미 일치도, 스트레스대처방식과 학과적응도 간의 관계)

  • Park, Ji Hye;Kang, Hye Young
    • 대한공업교육학회지
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    • v.38 no.1
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    • pp.69-85
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    • 2013
  • This study aims to examine the correlations between undergraduates' major-interest congruence and stress coping behaviors and major adjustment. And in order to find there is any group violating Holland's congruence hypothesis, this paper divides them into four groups according to the degree of major-interest congruence and major adjustment. Also, it examines the difference of stress coping behaviors among the four groups. The followings are the chief results of this paper. First, according to the result of analyzing the effects of major-interest congruence and stress coping behaviors on major adjustment, congruence did not affect major adjustment significantly. Second, according to the result of dividing them into four groups by the degree of major-interest congruence and major adjustment, there is one group with high congruence but low major adjustment and also a group with low congruence but high major adjustment. Third, according to the result of examining the difference of stress coping behaviors among the four groups by the degree of major-interest congruence and major adjustment, there is significant difference among the four groups. Above results imply that in major adjustment, we should consider factors other than major-interest congruence, and stress coping behaviors are particularly important for it. Therefore, it is necessary to train their stress coping behaviors and also develop programs to facilitate major adjustment. Also, it implies that in the use of Holland's theory, it is crucial to use it based on the client's various information and uniqueness rather than to apply it in a conventional or unconditional way.

Trends of Preventive Medicine Research according to The Korean Journal of Preventive Medicine and Qualitative Meta-analysis on Articles of Lead Poisoning (예방의학회지를 중심으로 한 예방의학 연구의 동향과 연관련 논문의 질적 메타분석)

  • Rhee, Jung-Ae;Park, Jong-Ku;Sohn, Seok-Joon;Kim, Chun-Bae
    • Journal of Preventive Medicine and Public Health
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    • v.32 no.2
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    • pp.113-122
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    • 1999
  • Objectives: The purpose of this study was to describe the trends of original research in the Korean Journal of Preventive Medicine, and to evaluate the quality of original articles about lead poisoning. Method: The data for the analysis of trends in preventive medicine research was taker from a total of 829 original articles published in the Korean Journal of Preventive Medicine from 1968 to 1997, The qualitative meta-analysis was measured against a checklist of evaluation criteria, which were divided into 10 categories, with 46 articles on lead poisoning. The evaluation process was performed independently by two evaluators, Results: The number of articles per 100 members over the study period increased by almost 4 pieces in the early 1980s, and by more than 9 pieces in the mid-1990s. In the major classifications of subjects, environmental and industrial health, epidemiology and health statistics, and health policy and management published 370 pieces (44.0%), 137 pisces (16.5%), 322 pieces (38.9%) respectively. In the order of the number of articles, five themes about health significance, including metal exposure (73 pieces), diseases associated with exposure to organic solvents (45 pieces), air pollution (36 pieces), maternal and child health (32 pieces), and occupational health (3D pieces) received consistent attention throughout the years $1968\sim1997$. The overall mean score of article qualify about lead poisoning was 37.8 out of 50. Of the articles any information on the purpose and hypothesis described well, Of those the originality of the subjects, the form of article's (including tables and figures), and the number of inappropriate words of abstracts showed very low score. For multiple regression analyses, the number of joint research institutes and the acceptance of research grants about the article quality were statistically significant. Conclusions: The number of original research reports in the Korean J Prev Med has recently increased and their subjects bave diversified. Of the basis of this study, the articles need improvement in the areas of abstracts, tables and illustrations (figures), etc. The Korean Society for Preventive Medicine will revise contribution regulations for manuscripts submitted to the Korean J Prev Med. Future studies should address these issues and perform the quantitative mata-analysis about the specific subjects including the quality of articles.

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Correlation between Instrument on Pattern Identification for Depression and Psychological Tests by Statistical Analysis (통계적 분석을 통한 우울증 변증도구와 심리검사의 상관성 연구)

  • Kim, Hwan;Lee, Hun-Soo;Lee, Eun Jung;Park, Joon-Ho;Kang, Wee-Chang;Jung, In Chul
    • Journal of Oriental Neuropsychiatry
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    • v.27 no.3
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    • pp.131-146
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    • 2016
  • Objectives: This study was performed to determine the correlation between Instrument on Pattern Identification for Depression and Psychological tests by Pearson Correlation Coefficient and Regression analysis.Methods: Two assessors carried out the evaluation using the instrument on pattern identification for depression. They also performed the following psychological tests: Beck Depression Inventory (BDI), State-Trait Anxiety Inventory (STAI), State-Trait Anger Expression Inventory (STAXI), the Temperament and Character Inventory (TCI), Insomnia Severity Index (ISI_Total), Self-disclosure Inventory, subjective well-being Inventory, Health perception Inventory, and Personality Assessment Inventory (PAI). A total of 167 participants who got HAM-D score over 12 were targeted for the evaluation. Our research team carried out Pearson correlation coefficient analyses and regression analysis between pattern identification for depression and Psychological tests. We listed the results by descending order and interpreted the results.Results: Pearson correlation analysis revealed the following results: 1) Stagnation of Liver Gi was associated with BDI (0.60) and STAI (0.55); 2) Dual Deficiency of the Heart and Spleen was associated with BDI (0.60), ISI_Total (0.52), and STAI (0.42); 3) Relieving stagnation of Phlegm-Gi was associated with BDI (0.65), STAI (0.54), and Subjective well-being inventory (−0.52); 4) Gi-deficiency Mingled with sputum was associated with BDI (0.50), ISI_Total (0.40), and STAI (0.395); 5) Stagnant Gi transforming into fire was associated with BDI (0.56), STAI_TR (0.51), and Health perception Inventory (−0.458); 6) Yin-Deficiency with Effulgent Fire was associated with BDI (0.55), ISI_total (0.54), and STAI (0.41).Conclusions: Through correlation analysis between Instrument on Pattern Identification for Depression and Psychological tests, we could suggest a System for Oriental Medical Diagnosis for Depression.

The Structural relationship among Commitment to Change, Needs of Technology Education Innovation, Communication and Self-Efficacy of Technology Teachers (교육환경 변화에 따른 기술교사의 변화몰입과 기술교육혁신 요구, 커뮤니케이션 및 자기효능감의 구조적 관계 분석)

  • Kim, Yong-lk
    • 대한공업교육학회지
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    • v.36 no.2
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    • pp.111-130
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    • 2011
  • The purpose of this study was to identify a causal relationship among commitment to change, needs of technology education innovation, communication and self-efficacy of technology teachers. A total of 300 copies of questionnaires were used for data analysis except for 117 copies like the one where insincerely responds to any question was found. To ensure the reliability and validity of questions, I performed technical statistics like average, standard deviation, skewness, and kurtosis via PASW 18.0, item-total correlation and the totality, and reliability analysis. I undertook a confirmatory factor analysis via AMOS 7.0 to ensure the validity of items together with a structural analysis to perform a path analysis among variables and assess the suitability of model. The major finding of this study were as follows: First, because fit index of hypothetical model generally met standards in this study, a hypothetical model was judged appropriately. Second, needs of technology education innovation had a positive effect on communication and commitment to change of technology teachers. And, communication among technology teachers had a positive effect on commitment to change of technology teachers. This result means that communication among technology teachers is important to activation of technology education. Third, self-efficacy had a positive effect on commitment to change of technology teachers. This result means that it needs to raise self-efficacy level through teacher education.

Career Cognition, Key Competency, Vocational Values of University Students and Junior College Students (대학생의 진로 관련 인식, 직업기초능력, 직업가치)

  • Lee, Myung-Hun;Lee, Sang-Min;Terada, Moriki
    • 대한공업교육학회지
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    • v.39 no.2
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    • pp.58-80
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    • 2014
  • The purpose of this study was to analyze career cognition, key competency, vocational values of university students and junior college students. The study was carried out through questionnaire survey method. The population sample for the study constituted 368 completed questionnaires from sample of 373 freshmen-women of university and students. A survey questionnaire consisted of career cognition items, key competency scale, vocational values scale, and personal characteristics items. The construct validity of key competency scale and vocational values scale were confirmed by factor analysis with varimax rotation. Both descriptive and inferential statistics were employed for data analysis. Major findings of this study were as follows: First, university students and junior college students most wanted to get a job after graduate. Many students decided their career at high school days. Many students were not prepared for their career after graduate. They recognized that major curriculum of university and junior college was very helpful to prepare their career. And many students discussed with their parents about their career. Second, key competency of them was moderately high. In the items of key competencies, 'communication and following' was the highest. And key competency of university students was better than that of junior college students. Key competency of male students was better than that of female students. Third, vocational values of them were high. In the items of vocational values, 'occupational stability' was the highest, and 'work in freedom and challenge' was the lowest. 'Occupational stability' and 'work in freedom and challenge' of junior college students was higher than that of university students. And 'occupational stability' of female students was higher than that of male students.

Path Dependence in Industry-University Cooperation - In terms of Industry's Voluntary Participation (산학협력에서 경로 의존성에 대한 연구 - 산업계의 자발적 참여 관점)

  • Han, Sang-Seol;Yim, Duk-Soon
    • The Journal of Industrial Distribution & Business
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    • v.9 no.3
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    • pp.45-56
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    • 2018
  • Purpose - The Korean university education system is facing innovation and change, including cooperation between industry and university, Therefore It is important to activate the industry-university cooperation. This paper aims to demonstrate the factors that activate industry-university cooperation, particularly about the voluntary participation induction by industry and researching in path dependency perspectives. Research design, data, and methodology - The subject of this research were companies that are aware of the industry-university cooperation program. This research hypothesis is derived from the literature of previous studies of industry-university cooperation, This study have constructs that was defined operationally with reference to previous studies, this research model design to figure out structural relationship among technology leadership of university, university specialization, local network strength, fixation of local economy, recognition of path dependence, participation by industry, performance of industry-university cooperation. From 2017 July. 1 to Sept. 31, questionnaire survey targeting company staff who is involving in industry-university cooperation. 257 questionnaire survey had conducted. 249 investigated data were used for empirical analysis except wrong data. This data were used for AMOS(structural equation) & Regression statistics to verify hypothesis which developed by researcher. Results - The results of this study are as follows. First, technology leadership of universities has a significant effect on voluntary participation by industry. University specialization has significant effect on voluntary participation by industry. Second, local network strength has significant effect on voluntary participation by industry. but fixation of local economy does not affect voluntary participation by industry. Third, recognition of path dependence has moderating effect between Independent(university, company characteristics) and dependent variables(voluntary participation by industry) When recognition level of path dependence is high, preceding factors have a significant effect on voluntary participation by industry than recognition level of path dependence is low. As a result, the degree of recognition of path dependence was shown important variables that induce voluntary participation of industry for industry-university cooperation program. Conclusions - This study suggests that voluntary participation of industry is a very important factor in the achievement of industry-university cooperation. Recognition of interdependence as well as leading factors that encourage voluntary participation of industry is also just as important. If recognition of path dependence was high, Industry's voluntary participation was high.

A Study on Trucker Recognition in Korean Cargo Distribution O2O Business Model (화물유통 O2O 비즈니스모델에 대한 차주의 인식 연구)

  • Coo, Byung-Mo
    • Journal of Distribution Science
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    • v.15 no.2
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    • pp.79-90
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    • 2017
  • Purpose - Cargo Distribution O2O Business Model is the form of business that connects the cargo and empty cargo-truck based on mobile online platform. In Korean cargo distribution market, FIN(Freight Information Network) is the only model that represents O2O Business Model. The purpose of this paper is investigating the recognition of driver who is the only source of income toward cargo distribution O2O Business Model, and based on the investigated recognition of trucker, suggesting strategic implication. Research design, data, and methodology - PESTLE methodology which is massive environment analysis, and 5 Forces Model when analyze the present and future of cargo distribution O2O business market of industrial structure analysis were used as investigation methodology. Also structured questionnaire was used for trucker's recognition investigation. Based on collected 196 structured effective questionnaires organized with 26 questions were analyzed using statistics package. Results - 51.3% of responded driver is non-differentiated, deprofessionalize form that transport all types of cargo. 95.4% recognize cargo distribution O2O Business Model, FIN is needed, especially during back-hall(94.7%). As a payment method, monthly due is preferred(73%), but it is also needed to pay annual due and pay whenever cargo and cargo-truck are connected(24.5%). Trucker prefer FIN operation corporation which has rich supply(85.2%), and is liberal in supply in any domestic area(75.5%). Conclusions - First, 91% was the member of FIN, and 95% of non-member recognized FIN is needed. 83% of them has the intent to be the member of FIN. Second, besides of monthly due as payment method of FIN, 25% has positive recognition toward new payment method. The new payment method means paying annual due and pay whenever cargo and cargo-truck are connected. Third, because of information imbalance about the cargo and cargo-truck among, operators whose business goal is FIN, it was investigated that transportation fee is low and commission charge of broker is high. The core of Korean Cargo Distribution O2O Business Model, FIN, is online platform that matches cargo and cargo-truck. Therefore, FIN operator should minimize the amount of single transportation of trucker. This study suggests the development of shipper using FIN, diversify distribution channel, suggesting backhaul toward trucker as solution to FIN operator.

Kriging Analysis for Spatio-temporal Variations of Ground Level Ozone Concentration

  • Gorai, Amit Kumar;Jain, Kumar Gourav;Shaw, Neha;Tuluri, Francis;Tchounwou, Paul B.
    • Asian Journal of Atmospheric Environment
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    • v.9 no.4
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    • pp.247-258
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    • 2015
  • Exposure of high concentration of ground-level ozone (GLO) can trigger a variety of health problems including chest pain, coughing, throat irritation, asthma, bronchitis and congestion. There are substantial human and animal toxicological data that support health effects associated with exposure to ozone and associations have been observed with a wide range of outcomes in epidemiological studies. The aim of the present study is to estimate the spatial distributions of GLO using geostatistical method (ordinary kriging) for assessing the exposure level of ozone in the eastern part of Texas, U.S.A. GLO data were obtained from 63 U.S. EPA's monitoring stations distributed in the region of study during the period January, 2012 to December, 2012. The descriptive statistics indicate that the spatial monthly mean of daily maximum 8 hour ozone concentrations ranged from 30.33 ppb (in January) to 48.05 (in June). The monthly mean of daily maximum 8 hour ozone concentrations was relatively low during the winter months (December, January, and February) and the higher values observed during the summer months (April, May, and June). The higher level of spatial variations observed in the months of July (Standard Deviation: 10.33) and August (Standard Deviation: 10.02). This indicates the existence of regional variations in climatic conditions in the study area. The range of the semivariogram models varied from 0.372 (in November) to 15.59 (in April). The value of the range represents the spatial patterns of ozone concentrations. Kriging maps revealed that the spatial patterns of ozone concentration were not uniform in each month. This may be due to uneven fluctuation in the local climatic conditions from one region to another. Thus, the formation and dispersion processes of ozone also change unevenly from one region to another. The ozone maps clearly indicate that the concentration values found maximum in the north-east region of the study area in most of the months. Part of the coastal area also showed maximum concentrations during the months of October, November, December, and January.