• 제목/요약/키워드: internal variables

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나노결정질 Ni-W 합금전착의 내부응력에 미치는 공정조건 변수의 영향 (Influences of Electrodeposition Variables on the Internal Stess of Nanocrystalline Ni-W Films)

  • 김경태;이정자;황운석
    • Corrosion Science and Technology
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    • 제11권6호
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    • pp.275-279
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    • 2012
  • Ni-W alloy deposits have lately attracted the interest as an alternative surface treatment method for hard chromium electrodeposits because of higher wear resistance, hardness at high temperature, and corrosion resistance. This study deals with influences of process variables, such as electodeposition current density, plating temperature and pH, on the internal stress of Ni-W nanocrystalline deposits. The internal stress was increased with increasing the applied current density. With increasing applied current density, the grain size of the deposit decreases and concentration of hydrogen in the deposit increases. The subsequent release of the hydrogen results in shrinkage of the deposit and the introduction of tensile stress in the deposit. Consequently, for layers deposited at high current density, cracking occurs readily owing to high tensile stress value. By increasing the temperature of the electrodeposition from $60^{\circ}C$ to $80^{\circ}C$, the internal stress was decreased. It seems that an increase in the number of active ions overcoming the activation energy at elevated temperature caused a decline in the concentration polarization and surface diffusion. It decreased the level of hydrogen absorption due to the lessened hydrogen evolution reaction. Therefore, the lower level of hydrogen absorption degenerated the hydride on the surface of the electrode, resulting in the reduction of the internal stress of the deposits. By increasing the pH of the electrodeposition from 5.6 to 6.8, the internal stress in the deposits were slightly decreased. It is considered that the decrease in internal stess of deposits was due to supply of W complex compound in cathode surface, and hydrogen ion resulted from decrease of activity.

소비자 정보원에 따른 정보탐색량과 구매후 만족에 관한 연구 -서울특별시 주부 소비자의 냉장고 구매를 중심으로- (A Study on Amount of Information Search and Consumer's Post-purchase Satisfaction according to Consumer Information Sources)

  • 이일경;이기춘
    • 가정과삶의질연구
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    • 제10권1호통권19호
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    • pp.27-42
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    • 1992
  • This study focused on consumer information search activity and consumer's post-purchase satisfaction. For these purpose, a survey was conducted suing questionaires on 430 homemakers that lived in seoul. Statistics used for data were Frequency Distribution. Percentile, Mean, One-way AAANOVA., Scheffe-test, T-test, Pearson's correlation. Multiple Regression Analysis and Multiple Classification Analysis. The major findings were ; 1) The level of each amount information search was lower than average. And the level of consumer's post-purchase satisfaction was a little higher than average. 2) On amount of "noncommercial-personal" information search, the influencing variables were desire to seek information, education, brand royalty in turn. These three variables explained 7% of dependent variable's variance. 3) On amount of "noncommercial-media" information search, the influencing variables were desire to seek information, amount of internal information, education, occupational status in turn. These variables explained 14% of dependent variable's variance. 4) On amount of "commercial-personal" information search, the influencing variable was desire to seek information, and this variable explained 3.1% of dependent variable'a variance. 5) On amount of "commercial-media" information search, the influencing variables were desire to seek information, education, amount of internal information in turn. These three variables explained 12.1% dependent variable's variance. 6) Resulting from multiple classification analysis, influencing variables on consumer's post-purchase satisfaction were amount of noncommercial-media information search and printed media search, and brand royalty. These three variables explained 9% of dependent variable's variance. Furthermore, througout all the subareas of consumer's satisfaction, the amount of noncommercial-media information search was the most influencing variable.

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The Relationship Between Internal Auditors' Personality Traits, Internal Audit Effectiveness, and Financial Reporting Quality: Empirical Evidence from Jordan

  • ALBAWWAT, Ibrahim Emair;AL-HAJAIA, Mohammad Eid;AL FRIJAT, Yaser Saleh
    • The Journal of Asian Finance, Economics and Business
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    • 제8권4호
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    • pp.797-808
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    • 2021
  • This study examines the interaction between internal auditors' personality traits and the internal audit function effectiveness. It also investigates the effect of such interacted variables on financial reporting quality. This study employed a questionnaire survey to collect data from 193 internal auditors of Jordanian companies listed on the Amman Stock Exchange. The study model is validated and tested using the partial least squares structural equation modelling. The results reveal that all the examined personality traits of internal auditors significantly impact internal audit function effectiveness except for the extraversion trait. The results also show that personality traits have indirect effects on financial reporting quality via internal audit function effectiveness. These results suggest that internal auditors with high scores on openness to experience, emotional stability, and conscientiousness traits can be among the most significant contributors to the internal audit function effectiveness. The results also suggest that internal auditors' personality traits can be regarded as an internal audit function intangible resource that enhances effectiveness. The study's findings might be of interest to many different parties interested in enhancing internal audit function effectiveness and boosting the financial reporting quality, such as external and internal auditors, auditees, human resource departments, and Chief Internal Audit Executives.

스타트업 관련 최근 국내 연구 동향: 연구 변수들에 대한 소셜 네트워크 분석을 중심으로 (Recent Domestic Research Trend Over Startups: Focusing on the Social Network Analysis of Research Variables)

  • 길창민;양동우
    • 벤처창업연구
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    • 제17권2호
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    • pp.81-97
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    • 2022
  • 본 연구는 스타트업 관련 국내 등재 논문들에 활용된 변수들을 분석하여 스타트업 관련 최근 연구 동향을 파악하고자 함이 목적이다. 대상 논문은 스타트업을 제목에 포함한 국내 등재 논문으로서 스타트업이라는 용어를 제목에 포함한 2013년 첫 등재 논문부터 2020년까지의 논문 108편이다. 본 연구의 분석방법은 전체 변수들에 대하여 클러스터링 및 빈도 분석을 실시하고, 유의한 관계를 가지는 변수들 간 텍스트 네트워크 분석을 진행하는 것으로 구성되어 있다. 텍스트 네트워크 분석을 위한 시각화툴은 Gephi를 활용하였다. 변수들에 대하여 분석한 결과는 첫째, 독립변수는 주로 스타트업의 내부적 요인에 대한 것과 외부적 환경에 대한 변수들로 구성되어 있지만, 초기 기업의 특성, 조직의 혁신성 등 스타트업의 특성으로 인하여 주로 내부적 요인, 예컨대 기업내부역량, 마케팅4P전략, 기업가정신, 협력방법, 변혁적 리더십, 기업특성, 린스타트업전략, 사내커뮤니케이션, 가치지향성, 과업갈등, 관계갈등, 지식공유 등에 대한 분석이 비중을 더 많이 차지한다는 점이다. 둘째, 종속변수는 주로 성과에 관련한 것으로서 상위 개념으로 클러스터링 하면 재무적 성과와 비재무적 성과로 크게 분류할 수 있다. 즉 스타트업은 매출 등 재무적 성과가 본격적으로 나타나기 어려운 상황이므로 재무적 성과뿐만 아니라 비재무적 성과, 예컨대 경영성과, 팀성과, SCM성과 등에 대한 관심이 높음을 알 수 있다. 본 연구를 통해서 알 수 있는 점은 스타트업을 주제로 한 등재 논문수가 많지 않은 상황임에도 불구하고 특정한 연구주제보다는 다양한 주제들에 대한 접근이 이뤄지고 있다는 것이다. 예컨대, 최신 트렌드를 반영하는 주제들도 등장하는데, 린스타트업전략, 크라우드펀딩, 인플루언서, 액셀러레이터 등은 시대상을 반영하는 주제라고 할 수 있다.

Chronic Obstructive Pulmonary Disease Is Not Associated with a Poor Prognosis in COVID-19

  • Kim, Youlim;An, Tai Joon;Park, Yong Bum;Kim, Kyungjoo;Cho, Do Yeon;Rhee, Chin Kook;Yoo, Kwang-Ha
    • Tuberculosis and Respiratory Diseases
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    • 제85권1호
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    • pp.74-79
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    • 2022
  • Background: The effect of underlying chronic obstructive pulmonary disease (COPD) on coronavirus disease 2019 (COVID-19) during a pandemic is controversial. The purpose of this study was to examine the prognosis of COVID-19 according to the underlying COPD. Methods: COVID-19 patients were assessed using nationwide health insurance data. Comorbidities were evaluated using the modified Charlson Comorbidity Index (mCCI) which excluded COPD from conventional CCI scores. Baseline characteristics were assessed. Univariable and multiple logistic and linear regression analyses were performed to determine effects of variables on clinical outcomes. Ages, sex, mCCI, socioeconomic status, and underlying COPD were selected as variables. Results: COPD patients showed older age (71.3±11.6 years vs. 47.7±19.1 years, p<0.001), higher mCCI (2.6±1.9 vs. 0.8±1.3, p<0.001), and higher mortality (22.9% vs. 3.2%, p<0.001) than non-COPD patients. The intensive care unit admission rate and hospital length of stay were not significantly different between the two groups. All variables were associated with mortality in univariate analysis. However, underlying COPD was not associated with mortality unlike other variables in the adjusted analysis. Older age (odds ratio [OR], 1.12; 95% confidence interval [CI], 1.11-1.14; p<0.001), male sex (OR, 2.29; 95% CI, 1.67-3.12; p<0.001), higher mCCI (OR, 1.30; 95% CI, 1.20-1.41; p<0.001), and medical aid insurance (OR, 1.55; 95% CI, 1.03-2.32; p=0.035) were associated with mortality. Conclusion: Underlying COPD is not associated with a poor prognosis of COVID-19.

Health Promoting Behavior and Influencing Factors in Iranian Breast Cancer Survivors

  • Tabrizi, Fatemeh Moghaddam
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권5호
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    • pp.1729-1736
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    • 2015
  • Background: The purpose of this study was to investigate the associations among the internal health locus of control, depression, perceived health status, self efficacy, social support, and health-promoting behavior in Iranian breast cancer survivors and to determine influential variables. Materials and Methods: A predictive design was adopted. By convenient sampling the data of 262 breast cancer survivors in Iran were collected by questionnaires during 2014. Data were analyzed applying descriptive statistics, t-tests, one-way ANOVA, Pearson's correlation coefficients, and stepwise multiple regression. Results: The internal health locus of control, depression, perceived health status, self efficacy, social support and undergoing chemotherapy all correlated significantly with the health-promoting lifestyle. Stepwise multiple regression analysis revealed that social internal health locus of control, depression, perceived health status, self efficacy and social support and chemotherapy accounted for about 39.8% of the variance in health promoting lifestyle. The strongest influence was social support, followed by self efficacy, perceived health status, chemotherapy and depression. Conclusions: The results of the study clarifed the seriousness of social support, self efficacy, perceived health status and depression in determining the health-promoting lifestyle among Iranian breast cancer survivors. Health professionals should concentrate on these variables in designing plans to promoting a healthy lifestyle.

기혼여성의 배우자 선택요인과 결혼만족도 (Mate Selection Factors and Marital Satisfaction of Married Women)

  • 이선정;신효식
    • 한국가정과학회지
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    • 제3권2호
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    • pp.13-26
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    • 2000
  • The purpose of present study were to find the general trends of mate selecting factors and. marital satisfaction. concentrated on married women, to examine the difference among mate selection factors and marital satisfaction according to socio-demographic variables and Psychological variables and to analyze the effects of these variables influencing marital satisfaction. The subjects were 276 wives, living in Kwangju that having passed under S years after marriage without divorce experience. The major findings were as follows . 1. In mate selection, factor of high-degree was personality. view of value. personal relations, achievement, emotional mature. self-differentiation. degree of affection's expression. sense of humor, charms and condition of health Respondents'marital satisfaction score showed 91.75 and this score was higher than median score(62.5) 2. The external factor of mate selection showed significant difference according to degree of education. career. order. and sex-role attitude. The internal factor of mate selection showed significant difference according to degree of education, career, order, self-differentiation, self-esteem, and sex-role attitude 3. As correlating mate selectional factors to marital satisfaction, the significance appears in the mate's personality. view of value, emotional mature. personal relations. self-differentiation, condition of health. achievement. charm, sense of humor and degree of affection's expression. 4. Married women's marital satisfaction was influenced by self-esteem, personality and child's number that were explained about 38% by these variables. In conclusion, to happy marital life must be loved her own self. and above all considered internal factors like personality than external factors in mate selection.

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Optimisation of symmetric laminates with internal line supports for maximum buckling load

  • Walker, M.
    • Structural Engineering and Mechanics
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    • 제6권6호
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    • pp.633-641
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    • 1998
  • Finite element solutions are presented for the optimal design of symmetrically laminated rectangular plates with various types of internal line supports. These plates are subject to a combination of simply supported, clamped and free boundary conditions. The design objective is the maximisation of the biaxial buckling load. This is achieved by determining the fibre orientations optimally with the effects of bending-twisting coupling taken into account. The finite element method coupled with an optimisation routine is employed in analysing and optimising the laminated plate designs. The effect of internal line support type and boundary conditions on the optimal ply angles and the buckling load are numerically studied. The laminate behavior with respect to fibre orientation changes significantly in the presence of internal line supports as compared to that of a laminate where there is no internal supporting. This change in behavior has significant implications for design optimisation as the optimal values of design variables with or without internal supporting differ substantially.

시설보호 아동이 지각한 보육사의 사회적 지지와 내적 통제 성항 및 학교 적응 (The Relationship among Perceived Social Support from Care Teacher, Internal Locus of Control, and School Adjustment of Institutionalized Children)

  • 권기남;유안진;민하영
    • 대한가정학회지
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    • 제40권5호
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    • pp.109-118
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    • 2002
  • This study focused on the relationship among perceived social support from care teacher(institution staff), internal locus of control, and school adjustment of institutionalized children. This also examined the differences of perceived social support, internal thou of control, and school adjustment by gender and the duration in the institution. Participant were 119 fifth-and sixth-grade elementary school studens(58 boys, 61 girts). Perceived social support from care teacher, internal locus of control, and school adjustment were measured by self-reports of institutionalized children. The data were analyzed, in SPSS Win program, by Cronbach's α, T-test, Pearson Correlations, Simple Regression, Hierarchical Multiple Regression. As expected, results confirm that perceived social support was associated positively with internal locus of control and school adjustment. further, perceived social support also exerts indirect effects on school adjustment, mediated by internal locus of control. However, none of these variables differed by gender and the duration in the institution.

외식 업체 내부 마케팅이 서비스 품질에 미치는 영향에 관한 실증적 연구 (The Relationship between Internal Marketing and Service Quality)

  • 전진화;임현철
    • 한국조리학회지
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    • 제12권4호
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    • pp.170-186
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    • 2006
  • The purpose of this study is to figure out how factors of internal marketing affect service quality. Method of human resource could be indicated to bear fruit of food-industry based on this research. This study conducted documentary study and empirical study. To achieve the purpose, a survey was conducted by 229 staffs of family restaurants in Daegu. The result of this research is as follows. First, the properties of each factor of internal marketing, Service Quality and staff's behavior were extracted from the previous studies. Second, internal marketing was applied as a independent variable, and service Quality as a consequent variable. The result reached through convergent validity came to satisfy all variables. Third, it was strongly maintained the fact that the better internal marketing was applied, the more staff were satisfied and the higher service quality was. It was shown that staffs provided customers with a good service if they were satisfied with internal marketing and their companies.

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