• 한국안전학회지
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• 제24권5호
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• pp.34-42
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• 2009

There are many accident causes related to even an accident. As well four(4) stepped causes of one accident at construction sites are analyzed in the study. First, eleven(11) cause factors are set up at each step such as policy level, management, indirect, direct level which are discussed and determined by field experts with 15year experience or more. Therefore, one direct cause occurred in construction site can be connected to the previous cause than in direct and management, and policy problem of previous management. These questionnaires results are analyzed with three different methods such as weighing level by Delphi technique, correlation analysis, critical pass method. Three different methods show their characteristic to see which subcontract work is more dangerous or not. Subcontract or at a construction site can be use the above three different cases as they need at their site in order to make more effective countermeasures.

• 드라이브 ㆍ 컨트롤
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• 제15권3호
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• pp.49-56
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• 2018

Construction machinery is used to improve productivity in civil engineering work and construction work, and it is a lengthy operation, and consumes considerable fuel to cope with large loads. As a result, productivity and fuel consumption of the construction machine become the main deciding factors. In the hydraulic system of the excavator, the main control valve is the most critical position for control. The flow distribution for control performance is achieved by the metering orifice, that causes critical energy loss. To improve this, we propose a combination of a three port proportional pressure reducing valve and a poppet type flow control valve as an IMV to replace the existing spool type MCV. To validate the proposal, we analyze static characteristics by modeling mathematically, and analyze dynamic characteristics. Simulation using the AMESim software on the regeneration circuit of the boom cylinder up-down operation, verifies the energy-saving effect compared to the existing MCV when IMV is used.

• 중환자간호학회지
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• 제14권1호
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• pp.14-27
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• 2021

Purpose : This study examined the effects of work environment and organizational culture on tertiary hospital nurses' turnover intention. Methods : A cross-sectional design was used, with a convenience sample of 371 hospital nurses from 16 units of three tertiary hospitals in South Korea. Data were collected through a self-report survey conducted during September and October 2016. Data were analyzed using the chi-square test, Fisher's exact test, independent t-test, and binary logistic regression analysis. Results : A total of 43.7% of the participants were identified as having turnover intention within 1 year. Factors related to turnover intention among hospital nurses were age, marital status, and total clinical career. Furthermore, a relationship-oriented organizational culture showed a negative association with turnover intention. Conclusion : These findings suggest it is important to provide appropriate motivational programs and incentives for nurses according to their clinical career to decrease turnover intention. Moreover, establishing a relationship-oriented organizational culture will also help to reduce the turnover intention of tertiary hospital nurses.

• Safety and Health at Work
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• 제9권1호
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• pp.101-108
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• 2018

Background: Work and work environment have a critical influence on adolescent workers' health. They are subjected to more risks than adults. The aim of this study is to examine psychological health outcomes in adolescent workers in the areas of depression, somatization, anxiety, hostility, and negative self-concept, and to investigate any related factors. Methods: This is a descriptive and cross-sectional study. Research samples were collected from adolescent workers between 15 and 18 years old attending a 1-day mandatory education course at vocational training centers, working 5 days per week in small enterprises. Data were collected using the following instruments: Brief Symptom Inventory, Multidimensional Scale of Perceived Social Support, and Descriptive Characteristics of Children's Assessment Form. Results: The investigation covers 837 young workers, of whom 675 were males and 162 were females. The majority of the families had low incomes (68.1%). Overall, 33.5% of the adolescents had been hospitalized because of health problems. Their average weekly working hours were $78.1{\pm}10.7$. Almost 50% of adolescent workers scored above the mean average in the Brief Symptom Inventory, indicating serious pschological health symptoms. Those who scored high for hostility, depression, negative self-concept, anxiety, and somatization were between 45.4% and 48.9% of the sample. Logistic regression analysis was conducted to determine the underlying factors: a perception of "feeling very bad" health conditions was 2.07-fold whereas the rate of "no annual leave" was 0.73-fold, and both were found to be effective on psychological problems. Conclusion: In this study, it seems likely that psychological health problems are the result of multiple adverse factors including working conditions, annual leave, and health considerations.

• 수완나부미
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• 제16권1호
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• pp.303-343
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• 2024

Globalization and the flow of foreign direct investment (FDI) in the post-pandemic context continue to play a critical role in shaping the workforce of emerging countries. In Vietnam, evidence obtained during the pandemic revealed that the well-being of employees, especially migrant workers, was extremely poor due to both work and non-work factors. This paper examines the most significant factors that impact the well-being of workers employed by various FDI companies in two Vietnamese industrial parks. The survey evidence (n=200) shows that worker well-being is influenced by seven key factors categorized in three dimensions, namely material stressors, social stressors, and human stressors. A further qualitative analysis of 60 participants provides an understanding of the ways in which each factor affects workers' well-being and how elements of well-being in the Vietnamese context are different compared with other countries. Low salaries, lack of social support, work-life imbalance due to job demands, and the interplay between these three determinants significantly affect the overall well-being of workers. In the current business climate, it is important to have well-targeted policies that encourage high-tech investments as well as persuade domestic firms to address low salaries and economic migration. To manage valuable human resources and keep competitive advantages, foreign firms need to authentically implement corporate social responsibility (CSR) initiatives focusing on workers' benefits, especially providing workforce housing. This will bring about win-win outcomes of improved employee well-being and business sustainability.

• 한국콘텐츠학회논문지
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• 제21권10호
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• pp.668-678
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• 2021

본 연구는 간호사의 임상수행능력에 영향을 미치는 요인을 규명하기 위한 서술적 상관관계 연구이다. 2021년 3월 24일부터 4월 27일까지 G시와 J도 소재의 종합병원 간호사 170명을 대상으로 구조화된 자가보고형 설문지로 조사하였다. 간호사의 임상수행능력은 연령, 결혼상태, 학력에 따라 차이가 있었다. 임상수행능력은 간호전문직관(r=.600, p<.001), 비판적 사고성향(r=.568, p<.001), 의사소통능력(r=.658, p<.001), 간호근무환경(r=.353, p<.001)과 양의 상관관계를 나타냈다. 간호사의 임상수행능력의 영향요인은 의사소통능력, 간호전문직관, 비판적 사고성향, 연령으로 나타났고, 이들 설명력은 54.0%였다. 임상간호사의 임상수행능력을 향상시키기 위해서는 의사소통능력과 간호전문직관, 비판적 사고성향을 향상시킬 수 있도록 지속적인 교육과 훈련이 필요하고 간호사들이 간호실무에 장기간 근무할 수 있도록 기관 및 국가적 차원의 방안마련이 요구된다.

• 한국건설관리학회논문집
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• 제13권3호
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• pp.78-88
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• 2012

국내의 건설실패 관련 연구는 체계화된 실패정보 분류체계 및 실패정보의 활용을 위한 방안을 제시하는 것에 초점을 맞추고 있다. 그러나, 건설현장의 한정된 관리자가 건설실패를 유발하는 다양한 원인에 대한 예방대책을 수립하는 것은 한계가 있다. 따라서, 효율적인 건설실패 예방활동이 이루지기 위해서는 많은 실패원인에 대한 정량적 평가를 통해 우선순위를 정하여 효율적인 예방대책이 수립되어야 한다. 이에 본 연구는 정량적인 평가를 통해 실패를 유발하는 핵심관리요인을 도출 할 수 있도록 FMEA(Failure Mode and Effect Analysis) 기법을 활용한 건설실패 핵심관리요인 선정방법을 제시하고, 공동주택 골조공사를 대상으로 핵심관리요인을 분석하는 것을 목적으로 하였다. 이를 위해 FMEA 기법의 위험도를 실패 위험성과 예방성으로 구분하여 평가할 수 있도록 하였다. 본 연구에서 제시한 핵심관리요인 평가방법은 건설실패의 사전예방대책을 효율적으로 수립하는데 활용될 수 있으며, 향후 유사한 연구를 통해 프로젝트 수행 단계별 혹은 다양한 시설 및 공종에 대한 핵심관리요인을 도출하는데 활용될 수 있을 것으로 기대된다.

• 한국초전도ㆍ저온공학회논문지
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• 제8권3호
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• pp.49-53
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• 2006

A high temperature superconductor (HTS) has been developed for power applications such as power cables, fault current limiters and superconducting magnetic energy storage devices. For such applications it is required to understand the DC voltage-current characteristic of the HTS. which is important in analyzing AC loss and flux flow loss quantitatively. In this work, we have experimentally investigated influence of several factors, e.g. critical current density. degradation and AC external magnetic field, on the DC voltage-current characteristic. The measured results have been discussed in engineering application point of view.

• 수산경영론집
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• 제37권1호
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• pp.73-93
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• 2006

This paper tries to apply the standard method for the estimation of range and degree of fisheries damages caused by warm water drained by generating plants to a real situation. The theoretic foundation of the study has been shown in the article published on the journal of fisheries business administration of last year. The paper tries to examine the degree of external appicability of the theoretic model through empirical study. The results of the study are as follows. The model has been found a successful device for the estimation of fisheries damages caused by warm water drained by generating plants. It also shows a possibility to work in any other fisheries damage cases caused by several kinds of public undertaking on coastal areas. The key of the model is the successful derivation of the quantity amount of the critical variation of environmental factors for example, in this case, water thermal variation. Therefore the countinous and appropriate collection of law data on the environmental factors under a viewpoint of statistics is essential to the usefulness of the model.

• 한국컴퓨터정보학회논문지
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• 제10권3호
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• pp.267-273
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• 2005

인터넷의 급속한 성장은 시장의 개념적 패턴에 변화를 주게 되었으며, 전자상거래의 급속한 발전으로 이어지고 있다. 국내외 전자상거래 시장이 급격히 발전함에도 불구하고 전자상거래의 성공요인에 관한 연구는 실제 미흡한 상태로 전자상거래에서 소비자들의 만족도와 재구매의도에 유의한 영향을 미치는 주요 성공요인을 규명하는 것은 전자상거래를 추진${\cdot}$운영하고 있는 기업의 전략수립에 매우 유용한 일이라 판단된다. 본 연구결과 가격과 고객서비스, 사용편리, 거래효율성, 품질보증이 전자상거래 만족도에 유의한 영향을 미치는 것으로 밝혀졌으며, 재구매의도에는 가격과 고객서비스, 사용편리, 보안이 유의한 영향을 미치는 것으로 규명되었다.