• Title/Summary/Keyword: Fixed Effect Analysis

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The Effect of the Program of Ecological Experience on the Emotional Intelligence of Young Children (생태체험 프로그램 활동이 유아의 정서지능 향상에 미치는 영향)

  • Kang, Young-Sik;Park, Jung-Hwan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.10
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    • pp.3680-3689
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    • 2010
  • The purpose of this study is to inquire into the changes to the emotional intelligence of young children by giving them pleasure and memory through the program of ecological experience. A survey was made on 40 young children in two classes out of 5-year-old children's classes in nurseries located at Chungcheong-do. They were divided into the experiment group and control group to consist of 20 persons, respectively. For young children of the experiment group, the experiment was conducted while observing and experiencing through the division of the group into 5 persons on fixed days according to the program of ecological experience. Analysis showed that the program of ecological experience in the experiment group relatively higher effect of increase for the emotional intelligence of young children, and the use of self emotion, the cognition and consideration of other's emotion, the cognition and expression of self emotion, the regulation and impulse control of emotion, the relationship with teacher and the relationship with peer by sub-factors than that in the control group. In other words, close relationships with nature and inquiry instruction of ecological experience have provided the attitude-based formation living together with the understanding of natural world and eco-friendly attitude, the cognition of ecological crisis and social cooperation that couldn't feel in indoor education. Consequently, the program of ecological experience should prove useful for the emotional intelligence of young children.

Job Selection, Separation, and Wage Level of SME Workers: based on a Follow-up Survey on Recent College Graduates (중소기업 취업자의 직장선택과 이동 그리고 임금 수준 분석)

  • Park, Jae-Min
    • The Journal of the Korea Contents Association
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    • v.10 no.9
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    • pp.387-398
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    • 2010
  • Recently SMEs(small and medium enterprises) in Korea have experienced severe labor shortages. In particular, college graduates avoiding SMEs are widely spotted. According to previous studies, the main causes of the evasion by college graduates are the inferior working environment and low wages. Some studies also state that SME workers experience discrimination. However, most studies have focused only on unemployment issues of the young graduates. In this research, the results of follow-up surveys on the employment status and job conditions of recent college graduates was linked as a panel data, and the performance of the graduates was analyzed. Based on the analysis, we found college graduates who are employed SMEs are likely to have their initial career fixed to the SMEs. Second, the job separation records of the young SME workers does not show positive labor market performances such as upward movements or wage increases, and the process itself turned out to be entailed frequent separation. Third, the inferior wage level at SMEs and the fact that this effect is cumulatively amplified has been a key factor for evading SMEs. Thus, it is difficult to say that the early-stage careers in SMEs are constructive in future career development. On the contrary, the early careers at SMEs result in lower labor market outcomes, and frequent job separation.

A study on the effect that brand image in sports equipment gets in consumer product purchase (스포츠용품에 있어서 브랜드 이미지가 소비자 제품구매에 미치는 영향에 관한 연구)

  • 윤선영;전성복
    • Archives of design research
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    • v.16 no.2
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    • pp.385-394
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    • 2003
  • Modem market's tendency is displaying brand strategy of Corporation sells product and consumer buys rand'.Brand acts by intermediate that reflect consumer's request and experience and attach product and consumer hat produce. Successful brand intended strategy empirical esthetics enemy, and consumer recognizes brand to novel experience and think by one fixed idea (awareness). any corporations wish to get maximum effect into minimum investment expense that reduce huge public elations and advertisement charge. Do to incuse impression for product brand through direct interview with consumer at purchase visual point, and do function hat drive purchase and the importance great rawly. Therefore, sight expression of brand image must be able to from immobile one impression in consumer's spirit being inked nearly with brand .Brand that situate by affirmative impression once can arrive in purchase by brand without alternative information being withdrawn by consumer's emory. Solution of visual expression for this being city cornification laying stress on logo and mark of brand as central element of brand image, speak as communication actor who back this. This to be Dija as direction that product and connection are deep before meaning that is sight language enemy who allow fetters special quality and the seniority in age sex language enemy of brand as ell as have direction of by methods method for problem solution present can .Therefore, relation with brand image analysis of sports equipment and consumer product purchase that this research forms market economy theoretical investigating to be effective and present direction that is image-making to be consistency this the purpose be.

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Effect of Process Variables on System Parameters in Extrusion Cooking of Corn Grit by Twin Screw Extruder (옥분 압출가공시 이축압출성형기의 운전조건에 따른 System Parameters의 변화)

  • Kim, Ji-Yong;Kim, Chong-Tai;Kim, Chul-Jin
    • Korean Journal of Food Science and Technology
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    • v.23 no.1
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    • pp.81-87
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    • 1991
  • To examine the effect of the individual operational variables on extrusion process, test trials of the fractional factorial design of the three process variables at three levels, including feed rate, screw speed and die openings, were carried out by using a laboratory scale twin-screw extruder with three different screw configuration for corn grit with the water addition fixed at 15% of the powder feed rate. As the increase of feed rate, while extrusion temperature(ET), specific mechanical energy input (SME), and residence time(RT) were showed the tendency to decrease, extrusion pressure(EP) was increased and as the increase of screw speed, ET, SME and EP were showed the tendency to increase, but RT was decreased. However, as increase the number of die hole, all system parameters were showed the tendency to decrease. The influence of the change in each process parameters was increased as the increase of the number of reverse element in screw configuration. In case of using the screw configuration with increasing number of reverse element at the condition of same process parameters, ET, SME and RT was increased, but EP was decreased. The functional relationships of the system parameters to the process parameters can be quantified by using multiple regression equations(mostly R-sq>0.90) and maped on suface response diagrams to expedite evaluation.

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Estimating the Determinants of Households' Monthly Average Income : A Panel Data Model Approach (패널 데이터모형을 적용한 가구당 월평균 가계소득 결정요인 추정에 관한 연구)

  • Yi, Hyun-Joo;Cheul, Hee-Cheul
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.6
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    • pp.2038-2045
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    • 2010
  • Households' monthly average income is composed of various factors. This study paper studies focuses on estimating the determinants of a households' monthly average income. The region for analysis consist of three groups, that is, the whole country, a metropolitan city(such as Busan, Daegu, Incheon, Gwangiu, Daejeon, Ulsan.) and Seoul. Analyzing period be formed over a 57 time points(2005. 01~2009. 09). In this paper the dependent variable setting up the households' monthly average income, explanatory (independent) variables are composed of the consumer price index, employment to population ratio, Index of housing sale price, the preceding composite index, loans of housing mortgage, spending rate for care medical expense and the composite stock price index. In looking at the factors which determine the monthly average income, evidence was produced supporting the hypothesis that there is a significant positive relationship between the composite index and housing loans. The study also produced evidence supporting the view that there is a significant negative relationship between employment ratios, the house sale pricing index and spending rates for care or medical needs. The study found that the consumer price index and composite stock price index were not significant variables. The implications of these findings are discussed for further research.

Properties of a Thermosetting Epoxy Composite : Effect of Isothermal Physical Aging (에폭시 열경화 복차재료의 성질 : 등온물리시효의 효과)

  • 이종근;윤성호
    • Polymer(Korea)
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    • v.25 no.3
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    • pp.359-366
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    • 2001
  • Isothermal physical aging of a glass fiber/epoxy composite was examined at different aging temperatures ($T_a$) and degrees of conversion (monitored by the glass transition temperature, $T_g$) by means of the TBA torsion pendulum technique. The range of aging temperature was from 10 to $130^{\circ}C$ : the conversion was systematically changed from $T_g$=$76^{\circ}C$ to $T_g$=$177^{\circ}C$ (fully crosslinked). The effect of isothermal physical aging was manifested as perturbations of the modulus and mechanical loss vs. temperature in the vicinity of $T_a$ for all conversions. The rate of isothermal physical aging determined from the change of modulus with aging time at fixed aging temperature decreased and then increased with increasing conversion below T$_{a}$=9$0^{\circ}C$. There exists a superposition in aging rate vs. ($T_g$ -$T_a$) by shifting horizontally and vertically. This implies that the physical aging process is independent of the change of chemical structure as conversion proceeds. It has been found that water absorbed at the aging temperature below $70^{\circ}C$ during isothermal physical aging lowers the apparent aging rate. It is due to the absorbed water molecules forming strong polar interactions with hydroxyl group on network chain and reducing the segmental mobility during the physical aging.g.

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Development of Base Concrete Block for Quiet Pavement System (저소음 포장용 기층 콘크리트 블록 개발)

  • Lee, Kwan-Ho;Park, Woo-Jin;Kim, Kwang-Yeom
    • Journal of the Korean Society of Hazard Mitigation
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    • v.10 no.1
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    • pp.35-42
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    • 2010
  • The rapid economic development induced the massive road constructions, becoming bigger and high-speed of the vehicles. However, it brings lots of social problems, such as air pollutions, traffic noise and vibration. Special concrete block for the base course of asphalt pavement is needed to decrease traffic noise such as tire's explosive and vehicles sound, applying Helmholtz Resonators theory to asphalt pavement. If it is applied to the area where it happens considerable noise such as a junction, the street of a housing complex and a residential street, it is one of considerable method to solve the social requirements of noise problem. This research examines couple of laboratory tests for the sound absorption effect of the concrete block and the base concrete block. There are specimens which is fixed hall-size, space, depth as the condition of this research, and these are analysed of noise decrease effect using different condition of the first noise of each vehicle. As a result of analysis data according to vehicle noise volume, measurement distance, a form and size of the hall using the base concrete block, the use of special concrete base showed a good alternative solution for decreasing traffic noise level, from 4 dB to 9 dB.

Hypoxia Induced High Expression of Thioredoxin Interacting Protein (TXNIP) in Non-small Cell Lung Cancer and its Prognostic Effect

  • Li, Yan;Miao, Li-Yun;Xiao, Yong-Long;Huang, Mei;Yu, Min;Meng, Kui;Cai, Hou-Rong
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.7
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    • pp.2953-2958
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    • 2015
  • Although associations between thioredoxin interacting protein (TXNIP) and cancers have been recognized, the effects of TXNIP on non-small cell lung cancer (NSCLC) prognosis remained to be determined in detail. In addition, while hypoxia is a key characteristic of tumor cell growth microenvironment, the effect of hypoxia on TXNIP expression is controversial. In this study, formaldehyde fixed and paraffin embedded (FFPE) samples of 70 NSCLC patients who underwent resection between January 2010 and December 2011 were obtained. Evaluation of TXNIP and hypoxia inducible factor-$1{\alpha}$ ($HIF-1{\alpha}$) protein expression in FFPE samples was made by immunohistochemistry. By Kaplan-Meier method, patients with high TXNIP expression demonstrated a significantly shorter progression free survival (PFS) compared with those with low TXNIP expression (18.0 months, 95%CI: 11.7, 24.3 versus 23.0 months, 95%CI: 17.6, 28.4, P=0.02). High TXNIP expression level was also identified as an independent prognostic factor by Cox regression analysis (adjusted hazard ratio: 2.46; 95%CI: 1.08, 5.56; P=0.03). Furthermore, TXNIP expression was found to be significantly correlated with $HIF-1{\alpha}$ expression (Spearman correlation=0.67, P=0.000). To further confirm correlations, we established a tumor cell hypoxic culture model. Expression of TXNIP was up-regulated in all three NSCLC cell lines (A549, SPC-A1, and H1299) under hypoxic conditions. This study suggests that hypoxia induces increased TXNIP expression in NSCLC and high TXNIP expression could be a poor prognostic marker.

A Study on the Analysis for the Effects of the Section Speed Enforcement System at the Misiryeong tunnel section (구간속도위반 단속장비 설치효과 분석 - 미시령동서관통도로를 중심으로 -)

  • Lee, Ho-Won;Joo, Doo-Hwan;Hyun, Cheol-Seung;Jeong, Jun-Ha;Park, Boo-Hee;Lee, Choul-Ki
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.12 no.3
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    • pp.11-18
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    • 2013
  • Since 1996, Korean National Police Agency has been promoting a project for installation of Automated Speed Enforcement (ASE) system aiming at reduction of accidents. The number has increased to 5,348 stations throughout country as of December 2012. Recently, the Section Speed Enforcement Systems have been installed at many sites to produce a general effect well beyond the localised effect at overt fixed camera sites. In this study aims, we have analyzed the effects of the Section Speed Enforcement System at the Misiryeong tunnel section. We have found that there were a statistically significant 21.4%~31.% reduction of the average speed and 45.9% reduction in a number of traffic accidents per month. Accordingly, the study indicates that the Section Speed Enforcement Systems at Misiryeong tunnel section has effective to produce road safety.

PbSCC of Ni-base Alloys in PbO-added Pure Water

  • Kim, Joung Soo;Yi, Yong-Sun;Kwon, Oh Chul;Kim, Hong Pyo
    • Corrosion Science and Technology
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    • v.6 no.6
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    • pp.316-321
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    • 2007
  • The effect of annealing on the pitting corrosion resistance of anodized Al-Mg alloy (AA5052) processed by equal-channel angular pressing (ECAP) was investigated by electrochemical techniques in a solution containing 0.2 mol/L of $AlCl_3$ and also by surface analysis. The Al-Mg alloy was annealed at a fixed temperature between 473 and 573 K for 120 min in air after ECAP. Anodizing was conducted for 40 min at $100-400A/m^2$ at 293 K in a solution containing 1.53 mol/L of $H_2SO_4$ and 0.0185 mol/L of $Al_2(SO_4)_3$. The internal stress generated in anodic oxide films during anodization was measured with a strain gauge to clarify the effect of ECAP on the pitting corrosion resistance of anodized Al-Mg alloy. The time required to initiate the pitting corrosion of anodized Al-Mg alloy was shorter in samples subjected to ECAP, indicating that ECAP decreased the pitting corrosion resistance. However, the pitting corrosion resistance was greatly improved by annealing after ECAP. The time required to initiate pitting corrosion increased with increasing annealing temperature. The strain gauge attached to Al-Mg alloy revealed that the internal stress present in the anodic oxide films was compressive stress, and that the stress was larger with ECAP than without. The compressive internal stress gradually decreased with increasing annealing temperature. Scanning electron microscopy showed that cracks occurred in the anodic oxide film on Al-Mg alloy during initial corrosion and that the cracks were larger with ECAP than without. The ECAP process of severe plastic deformation produces large internal stresses in the Al-Mg alloy; the stresses remain in the anodic oxide films, increasingthe likelihood of cracks. It is assumed that the pitting corrosion is promoted by these cracks as a result of the higher internal stress resulting from ECAP. The improvement in the pitting corrosion resistance of anodized AlMg alloy as a result of annealing appears to be attributable to a decrease in the internal stresses in anodic oxide films