• 한국산업보건학회지
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• 제6권1호
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• pp.38-54
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• 1996

Respirator fit testing is required before entering specific work environmentals to ensure that the respirator worn satisfies a minimum of fit and that the user knows when the respirator fits properly. The fit of a respirator can be determined by qualitative (QLFT) or quantitative fit test (QNFT). The QNFT, having been universally accepted more than the QLFT, provide an objective and numerical basis by measuring a fit factor (FF). Until a few years age, only one QNFT technigue was available and accepted by U.S. Occupational Safety and Health Administration (OSHA) regulations. In the 1980's and 1990's, several new and fundamentally different QNFT methods were developed. Two of the newer methods are commercially availale and are accepted by OSHA as suitable alternatives. In this articles, the principle of operation of each ONFT technique is explained and each technique's major advantages and disadvantages are pointed out. Emphasis is given to negative-pressure air-purifying respirators, as they are in most frequent use today. The requirements and recommendations for fit testing positive-pressure respirators are discussed as well. Finally, the presently available QNFT standards and regulations are summarized to assist the user in making fit testing decisions.

• The Journal of Asian Finance, Economics and Business
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• 제7권12호
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• pp.761-771
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• 2020

This study discusses the role of Board Monitoring Effectiveness (BME) on managers' decisions regarding the business strategies that fit the external business environmental conditions by using a contingency analysis approach. Furthermore, this study will examine how fit strategies affect Sustainability Reporting (SR) of listed companies on the Indonesia Stock Exchange (IDX) from 2014 to 2017. This study uses Conditional Mixed Process (CMP) technique. This CMP method is claimed to be more efficient in analyzing the TSL models. This study found that in highly uncertain conditions, BME had a positive influence on the probability of managers to choose prospector and defender strategies rather than analyzers. These results indicate that BME shows positive impact on the contingency fit between business strategies and environmental uncertainty. In addition, the study documents that only prospectors have a positive impact on SR, however this study failed to document that defenders have positive impact on SR. Meanwhile the unexpected result is analyzers have a significantly positive effect on SR. This study is the first study to investigate the role of BME in contingency fit between business strategies and environmental uncertainties and how it produces effects up to the level of SR.

• 한국산업보건학회지
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• 제31권1호
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• pp.94-104
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• 2021

Objectives: A number of medical institutions have been conducting fit tests to perform seal checks on masks. This study aimed to compare the differences fit factor before and after domestic N95 mask-wearing training through a fit-test. Methods: A survey of 59 healthcare workers was conducted regarding whether they had undergone a fit test or received training on mask-wearing. Further, the fit of two types of domestic N95 masks was measured before and after the training using a QNFT(Quantitative Fit test). The average fit factors before and after training were compared using a paired t-test. Additionally the differences in the fit test pass rate were analyzed using a McNemar test. Results: A statistically significant difference was seen between the fit factors in the fit tests conducted before and after the training (p=0.0015), as well as in the fit of the two types of masks tested (p<0.01). Thus, an improvement in mask fitting was seen after the training, even with differently fitted masks. Conclusions: Upon using a QNFT, a significant increase in the fit factors for N95 masks was observed after training compared with masks that were fitted as usual. This highlights the importance of training in mask-wearing, with the conclusion that training healthcare providers will improve the fit of masks.

• Human Ecology Research
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• 제59권3호
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• pp.419-432
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• 2021

To help korean fashion brands establish CSR activities in the chinese market in the future, this study investigated the influence of korean fashion brands' CSR fit with Chinese Consumers on Consumer Satisfaction and brand attitude, with the moderating effect of ethnocentrism. An online survey was conducted with 20-39 year-old consumers in China from April 18 to April 30, 2021. Data analysis was conducted using SPSS 24.0 and Amos 24.0. The results of this paper are as follows. First, environmental CSR fit had the greatest impact on consumer satisfaction, followed by financial CSR fit and social contribution CSR fit. Second, environmental CSR fit and social contribution CSR fit had positive effects on brand attitude, while financial CSR fit did not have a positive effect on brand attitude. Third, as customer satisfaction has a favorable effect on brand attitude, it can be inferred that the greater the satisfaction customers feel for a Korean fashion brand in China, the more positive the attitude they develop toward Korean brands. Fourth, there was no significant difference between groups that had a high and low degree of ethnocentrism, confirming that ethnocentrism does not have a moderating effect on consumer satisfaction. On the other hand, in the relationship between environmental and social contribution CSR fit and brand attitude, there was a greater impact in the low ethnocentrism group compared with the high ethnocentrism group, which verifies the moderating effect of ethnocentrism.

• 한국산업보건학회지
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• 제6권2호
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• pp.176-186
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• 1996

The fit of a respirator to the face of an individual can be determined by a qualitative fit test (QLFT) or a quantitative fit test (QNFT). The pass/fail decision from a QLFT or QNFT for the same respirator on the same individual may vary from one wearing to the next, because the human facial features are complex and the respirator may not fit to the face in the same way every time it is worn. This study reports how the fit factors (FF) resulting from a QNFT on an individual vary from day to day and depend on the movements in the six fit test exercises. The reported FFs provide an objective and numerical basis (FF) which does not depend on the subject's voluntary or involuntary response. Four half-mask (H1-H4) and four full-facepiece respirators (F1-F4) were fit tested on one wearer 10 times a day for 5 days with a PortaCount (model 8010, TSI). The FFs obtained for each set of 10 fit tests on a specific day and 50 fit tests on five days involving one of the six exercise regimes have been recorded as log-normal distributions. All of the geometric standard deviations (GSD) of the overall FFs varied widely among every wearing and day except for H1 and F3, and the variability of the half-mask respirators was larger than that of the full-facepiece respirators. Among the six exercise regimes, reading or talking (RT) had markedly the lowest exercise FFs on the tested individual. Generally, there were significant differences between the first normal breathing (NB1) FFs and the remaining exercise FFs.

• The Journal of Asian Finance, Economics and Business
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• 제6권1호
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• pp.217-229
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• 2019

The purpose of the research is to verify how task characteristics for business and technology characteristics, economic feasibility, technology readiness, organizational factors, environmental factors of cloud computing affect the performance of cloud computing adoption through Fit and Viability. The research aims to verify the relationship among the success factors for adopting cloud computing based on the Fit-Viability model. Respondents who work for IT companies which is using cloud computing in South Korea were chosen. The data was analyzed by the structural equating model. As a result, Task characteristics and Technology characteristics affected Fit in a positive manner, while Technology readiness, Organizational factors and Environmental factors also positively impacted Viability. Fit and Viability both affected the successful adoption of cloud equally. In particular, Environmental factors were proven to have the biggest impacts on Viability, and affected highly indirect impact on the Performance of cloud computing adoption through Viability. Entering the era of the fourth industrial revolution, corporations have established digital transformation strategies to secure a competitive edge while growing continuously, and are also carrying out various digital transformation initiatives. For the success of adoption of foundational technologies, they need to understand not only the decision-making factors of adopting cloud computing, but also the success factors of adopting cloud computing.

• 벤처창업연구
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• 제10권1호
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• pp.95-110
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• 2015

기업가정신이론을 비롯하여 많은 혁신이론들이 경영자의 혁신능력을 혁신의 출발로 보고 있다. 본 연구는 경영자의 혁신DNA라는 역설적 은유를 통해 혁신에 미치는 영향과 환경의 적합성 관계를 규명함으로써 학습과 노력에 의해 후천적으로 혁신역량을 높일 수 있는 구체적인 방향을 모색하는데 목적을 두고 있다. 이를 위해서 대구경북 110개 제조기업을 대상으로 자료를 수집하여 실증분석을 하였다. 실증분석 결과 혁신DNA는 혁신에 전반적으로 긍정적인 영향을 미치는 것을 확인하였다. 특히 발견DNA는 실행DNA보다 제품전략에 더 강하게 작용하는 반면에, 실행DNA는 공정혁신에 더 강하게 작용하는 것으로 나타났다. 혁신DNA와 환경의 적합성에 따른 혁신의 영향의 경우, 발견DNA와 기술격변성은 상호적합성을, 시장격변성은 보완적합성을 통해 제품혁신을 강화하는 것으로 나타났다. 실행DNA와 시장격변성의 상호적합성을 통해 공정혁신을 강화시키는 것으로 나타났다.

• 한국조리학회지
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• 제18권5호
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• pp.80-94
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• 2012

본 연구는 호텔 조리사의 성격유형에 따른 환경부합과 직무만족, 직무성과와의 관계 연구를 하고자 하였다. 이를 위하여 서울지역 8개의 특급호텔에 근무하는 조리사를 대상으로 하였으며, 총 300부를 배포하여 수거한 후 이중 287부를 분석에 활용하였다. 연구가설을 검증하기 위한 실증분석은 설문조사를 통해 회수된 유효표본을 가지고 SPSS 17.0을 통해 분석을 실시하였다. 표본의 일반적 특성을 위해 빈도분석을 실시하였고, 성격유형, 환경부합, 직무만족, 직무성과에 대하여 요인분석과 신뢰성분석을 실시하였으며, 호텔조리사의 성격유형에 따라 환경부합에 유의한 차이가 있는지를 살펴보기 위해 군집분석 및 MANOVA 분석을 실시하였다. 또한 호텔조리사의 환경부합이 직무만족에 영향을 미치는지와 직무만족이 직무성과에 영향을 미치는지를 알아보고자 다중회귀분석을 실시하였으며, 성격유형에 따라 호텔조리사의 환경부합이 직무만족에 미치는 영향을 살펴보기 위해 조절회귀분석을 수행하였다. 연구결과 호텔조리사의 성격유형에 따라 환경부합에 차이가 있는 것으로 나타났고, 개인적인 성격유형에 따라 직무만족에 유의한 영향을 미치는 것으로 나타났다. 또한 호텔조리사의 환경부합 요인은 전반적으로 호텔조리사의 직무만족에 영향을 미치는 것으로 나타나고 있으며, 직무만족은 직무성과에 영향을 미치는 것으로 나타났다.

• 한국환경보건학회지
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• 제27권2호
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• pp.30-36
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• 2001

This review begins with a brief expression of aerosol capture mechanism of fibrous filter(s) and performance of particulate removing respirators. The more complicated and detailed discussion is not included in this articles. Filtration efficiency and pressure drop are introduced as quality factor ( $q_{F}$) and the way in which filtration efficiency varies with particle size is discussed. Quality factors fro filters recently certified in USA were found to be very higher than those of filters made in Korea, China and USA filters certified with old certified standards. Electrically charged filters are widely used because they have high filtration efficiency and low pressure drop, but their efficiency decreases sharply at the condition occurring wet and oil mist. A discussion is given of respirator leakage through face seal and filter media with fit testing and total inward leakage testing. Since fit factor (FF) refers to the reciprocal of the fraction of the total air entering a respirator through face seal leakage , the degree of fitting performance for respirators is expected with FF. Because respirators made in Korea had generally lower FFs than respirators made in USA, it is necessary to develope respirators that fit properly for Koreans or establish regulations for fit testing.g.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.117-121
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• 2015

Construction managers use scheduling methods to improve the outcome of their project. Despite the many obvious advantages of the critical path method (CPM), its use in construction has been limited. Understanding the reasons why CPM is not used as extensively as expected could improve its level of acceptance in the construction industry. The link between construction scheduling methods and the tasks expected to be performed by schedulers has been an on-going concern in the construction industry. This study proposes a task-technology fit model to understand why CPM is not used as extensively as expected in construction scheduling. A task-technology fit model that aims to measure the extent to which a construction scheduling method functionally matches the tasks expected to be performed by the scheduling staff. The model that is proposed is an answer to the lack of proper instruments for evaluating the extent to which scheduling methods are used in the industry.