• 제목/요약/키워드: fundamental variables

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A Study on the Development of a Flourish Competency Enhancement Program for Infant Teachers (영아교사의 행복플로리시 역량 증진 프로그램 개발을 위한 인식 및 요구도)

  • Kang, Hyun Mi;Hwang, Hae Ik
    • Korean Journal of Childcare and Education
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    • v.11 no.4
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    • pp.167-187
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    • 2015
  • The purpose of this study was to purpose fundamental data which can be used for the development of a flourish competency enhancement program for infant teachers. The methods of the questionnaire study were performed on 213 infant teachers. The results are as follows. First, as a result of investigating their awareness of a flourish competency, many of the infant teachers replied that they were aware of it to a certain extent. The differences of institution type were statistically significant. Second, as a results of looking for any possible difference in the teacher's background variables in needs for the development of an enhancement program for flourish competency, there weren't significant differences in opinions on the needs of the program, effects of the program, purpose of the program, execution cycle, methods of the program training, intention of involvement. But needs of flourish competency existed of significant differences in institution type and execution time and program operator existed of significant differences in institution type and career. This study is hope to suggest some of the development directions of a flourish competency enhancement program for infant teachers.

Efficiency Evaluation of Harmony Search Algorithm according to Constraint Handling Techniques : Application to Optimal Pipe Size Design Problem (제약조건 처리기법에 따른 하모니써치 알고리즘의 효율성 평가 : 관로 최소비용설계 문제의 적용)

  • Yoo, Do Guen;Lee, Ho Min;Lee, Eui Hoon;Kim, Joong Hoon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.7
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    • pp.4999-5008
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    • 2015
  • The application of efficient constraint handling technique is fundamental method to find better solutions in engineering optimization problems with constraints. In this research four of constraint handling techniques are used with a meta-heuristic optimization method, harmony search algorithm, and the efficiency of algorithm is evaluated. The sample problem for evaluation of effectiveness is one of the typical discrete problems, optimal pipe size design problem of water distribution system. The result shows the suggested constraint handling technique derives better solutions than classical constraint handling technique with penalty function. Especially, the case of ${\varepsilon}$-constrained method derives solutions with efficiency and stability. This technique is meaningful method for improvement of harmony search algorithm without the need for development of new algorithm. In addition, the applicability of suggested method for large scale engineering optimization problems is verified with application of constraint handling technique to big size problem has over 400 of decision variables.

A Study on the Internal Control System of Fisheries Cooperative (수산업협동조합의 내부통제제도에 관한 연구)

  • 박이봉;최정윤
    • The Journal of Fisheries Business Administration
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    • v.22 no.2
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    • pp.101-148
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    • 1991
  • The fisheries cooperative (FC) performs the economic and nonprofitable activity to get the fundamental objective of enhancing cooperative members' economic and social position. The internal control system fitted for a local FC should be required for not only solving the resulting problem from the complexity of FC environment nowaday but also delegating authorities and performance from FC Federation to a local FC by implementing the local autonomy. The methodology of this study is to empirically test and to analyze the condition of FC internal control system (FCICS) by the questionnaire survey. The actual condition of FCICS in Korea is analyzed by the questionnaire and the detailed contents are as follows : (1) sending 208 questionnaire consisting of 162 questions, and receiving 92 replies from 39 manufactures (business firms) and 15 banks in Gyungnam and Pusan area and 25 FC and 13 agricultural cooperative (AC) in Korea, (2) the analyzed results of FC and AC are treated simultaneously. In the fundamentals of above analyzed results, the evaluation model of FCICS is tried to construct from the relationship between the financial condition of FC and the internal control elements through the stepwise regression method. (1) By the stepwise regression method, the number of FC officials $(X_1)$, the experimental number of regular auditing $(X_7)$, and auditing duty years $(X_8)$ are finally accepted as independent variables, (2) and the final model becomes $Y=-1.53526+0.34455X_1+0.24513X_7+0.16585X_8$/ and this model explains to the extent of 47.826%. From the above study, following proposals are to be suggested: (1) The function and problem of internal control in FCICS is able to be improved by enforcing the function of FCICS and enriching the management's recognition of FCICS (2) The cooperative president can bring up good FC by the rational operation of FCICS according to the size and the performance pattern of FC, adding up to enhance members' economic and social position.

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Extraction of design elements and sensibility factors influencing on preference and purchase for digital cameras (디자인요소와 감성언어 추출을 통한 디지털 카메라의 선호도와 구매도에 영향을 미치는 요소에 관한 연구)

  • Kwon, Jong-Dae;Hong, Jung-Pyo
    • Science of Emotion and Sensibility
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    • v.11 no.2
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    • pp.285-292
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    • 2008
  • The purpose of this study is to provide the fundamental data needed in analyzing customer needs and understanding products in developing designs, to help designers to have better understanding of digital camera products, and to support the setting of concepts in developing designs, by understanding the specific properties of products that have specific purposes. In this study, homogeneity analysis was performed to the collected products launched from 2000 until now and representative products were selected to extract the questions on the adjectives and preferences felt form such products. Based on the questions, basic questionnaire survey and subject image analysis was performed in relation to the elements of images preferred by customers through the regression analysis of dependent variables and preferences and the regression analysis of purchasing power. When we design for digital camera, we must consider about the elements of digital cameras and the terms convenient, sensitive, functional, and grace. In terms of whole trend of shape, the shape highlighting grips and the digital cameras having grips, large LCD, dark colors, and manual buttons were preferred.

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An Optimization Study on the Radiation Management in Nuclear Power Plants (원자력 발전소 방사선 관리의 최적화에 관한 연구)

  • Song, Jong-Soon
    • Journal of Radiation Protection and Research
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    • v.18 no.1
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    • pp.71-82
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    • 1993
  • It is a fundamental element of the nuclear power plant operation to assess exactly the occupational radiation exposure. And, according to recently published ICRP 60 recommendation, it is needed to reduce individual radiaton exposure limit further. In this paper, an optimization techique was suggested for selection of alternatives for reducing occupational radiation exposure, and used in reviewing alternatives given by a plant utility. After the basic analysis, sensitivity analysis was performed to consider the variabilities of the economic variables. From the result, it was found that an option using steam generator nozzle dam and torquing machine was the best with respect to total benefits, and in case of multi-attribute utility analysis, an option using Co-No seal had the highest utility. Therefore, it was necessary to apply more than one technique togeter in optimization study and to consider qualitative factor, too.

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The Fundamental Studies of the New Glow Discharge/Inductively Coupled Plasma Interface: Part Ⅰ. Preliminary Studies (새로운 글로우 방전/유도결합 플라스마 장치(GD/ICP Interface)에 대한 기초 연구: Part Ⅰ. 기초 연구)

  • Lee, Gae Ho;Kil, Hyo Shik;Kim, Hyung Seung;Gary M. Hieftje
    • Journal of the Korean Chemical Society
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    • v.43 no.2
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    • pp.182-192
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    • 1999
  • The new GD/ICP-AES quick change over system has been developed and characterized. Within less than 15 minutes, ICP-AES could be switched to GD-AES and vise a versa. As a result, both solid and liquid samples could be analyzed in a very short period of time by the ICP/GD-AES quick change over system developed in our laboratory. The influences of the experimental variables, such as flow rate of coolant gas, flow rate of auxiliary gas, flow rate of sample carrier gas, sampling depth, orifice size of sampling cone, and rf (radio frequency) power on emission intensity have been presented. The detection limits of Cd(I) 228.8 nm, Mn (II) 257.61 nm, and Fe(II) 259.95 nm were found to be 3.86, 1.49, and 5.79 ppb, respectively. And linealities of the calibration curves were measured to be unity.

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Risk Structure Analysis for Cost of Capital : A Demonstrative Study using Financial Indices

  • Ling, Feng;Suzuki, Tomomichi;Ojima, Yoshikazu
    • International Journal of Quality Innovation
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    • v.7 no.3
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    • pp.1-14
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    • 2006
  • Economic value added (EVA) is introduced on two levels: as index for evaluation of corporation and as index for evaluation of business unit. In the latter case, application of one and the same cost of capital to all business units of a business corporation may be possible, but it is a fundamental policy for EVA to apply different cost of capital to business units with different risks. Estimate of cost of capital of business units is a problem to be resolved. The author, focusing on the question of the estimate of cost of capital of business units, has conducted a demonstrative study on risk structure of cost of capital estimates by using financial indices of Japanese manufacturers (37 automotive industries, 141 electrical and electronic machinery industries, 63 food processing industries, 98 chemical industries, 125 general machinery industries) for a period of 5 years from 1995 to 1999. The author presumes that $\beta$ is explained by a regression formula ${\beta}=B_0+{\Sigma}B_iY_i+{\alpha}$ ($Y_i$: financial indices) and selects 40 explanatory variables from financial statements as risk components. Using their financial indices, the author concludes through a series of statistical analyses that there is a good likelihood of estimating cost of capital for Japanese industries and is convinced that it will lead to more reliable and practical results by assigning averages and variances to 40 primary financial indices for a period of 3 to 5 years selected in this demonstrative study.

Development of Density Measurement Technique Based on Two Point Detectors and Measurement Reliability According to Different Sensing Gaps (두 지점의 지점검지기를 이용한 밀도측정방안 개발 및 측정간격에 따른 신뢰성 분석)

  • Lee, Cheong-Won;Kim, Min-Seong;Park, Jae-Yeong;Lee, Eun-Gyu
    • Journal of Korean Society of Transportation
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    • v.28 no.3
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    • pp.157-167
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    • 2010
  • Density is the most important congestion indicator among the three fundamental flow variables, flow, speed and density. Measuring density in the field has two different ways, direct and indirect. Taking photos with wide views is one of direct ways, which is not widely used because of its cost and lacking of proper positions. Another direct density measuring method using two point detectors has been introduced with the concept of instantaneous density, average density and measurement interval. The relationship between accuracy and measurement interval has been investigated using the SIMULATION data produced by Paramics Application Programming Interface function. We analyze the affect of segment density accuracy by sensing gap each road condition such as sensing segment length, lane and LOS after gathering data by Paramics Application Programming Interface.

The Effect of Health Care Program for Newly Married Couple in a Community Health Care Center (일 보건소의 신혼부부 건강프로그램의 효과)

  • Lim, Jae-Ran;Kim, Hyun-Il
    • Research in Community and Public Health Nursing
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    • v.19 no.2
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    • pp.188-195
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    • 2008
  • Purpose: The research purpose was analysis of the effect of a health education program for newly-married executed from 2003 to 2005 as a part of health care service from community health center and providing the fundamental source for health education needed during newly-married. Method: The data collection with structured questionnaires was conducted during October to December in 2006. From the health center 106 brides who participate the program and 130 brides who didn't participate. Health care program for newly married couple were composed health examinations and health educations. Health examinations were CBC, LFT and Ag & Ab prevallence rates of hepatitis B, rubella. Health educations were done two times, the first individual health education was done at enrolled in health center for establishment of desirable couple relationship, family planning, contraception method and management of pre-pregnancy. The second individual health education was done for explanation of blood examination results, prevention of the congenital deformity and the vertical transmission of hepatitis B, management for pregnancy, breast feeding method, introduction to safety delivery method and encouraging self-study using by materials made by health center after two weeks at revisiting health center. SPSS/PC(ver. 12.0) and $X^2$-test, t-test was used to analyze the collected and tabulated data. Socio-demographic characteristics and regional characteristics of residence area of two groups shows no significant difference. Result: As a variables of experimental effect. The natural childbirth rates of participants group was significantly higher than Non-participants group(p=.012). Breast feeding rates for participants group was also statistically significant higher than Non-participants group. Contraception rates showed no significant difference. The rubella vaccination rates (p=.001) and The hepatitis B vaccination rates (p=.012) shows statistical differences. Conclusion: Therefore health care program for newly married couple in a community health care center was effective generally. We supposed that explore participation ways for nonparticipants, expand the program to community health care center in whole country.

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Factors Affecting Working Participation of University Students (대학생의 근로 참여 의지에 영향을 미치는 요인)

  • Kim, Kyoung-Beom;Lee, Juhyun;Choi, Hyojin;Choi, Minjae;Kwon, Young Dae;Noh, Jin-Won
    • The Journal of the Korea Contents Association
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    • v.14 no.11
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    • pp.318-327
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    • 2014
  • Today, Competition in employment among the youth is more intensified and this phenomena lead to youth unemployment problems. This study was conducted to found the influence of youth employment effort on labor participation. We studied what variables could affect motivation of employment preparation especially among undergraduate and graduated students. We used 3rd~5th(2009~2011) 'Youth Panel Data' designed by Korean Employment Information Service. Data we adjusted were male(3,481) female(3,770). We applied the Generalized Estimating Equations to Panel logit model. We found that job education and training, career guidance, job shadowing program, getting new certification, sex, age and change of gross income affected employment preparation with controling education factors, socio-economic factors. This study found the effort of employment preparation was significant impact on labor participation and showed an influence on each variable empirically. We suggest that the youth-unemployment problem there is a need to approach fundamental aspects.