• Journal of Information Technology Applications and Management
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• 제27권4호
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• pp.1-19
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• 2020

Infringement of information security has caused the corporate image to be damaged and share price to fall, and it is emerging as an organizational risk. The value of information assets in enterprises has led to a higher level of security than in the past. As a result, companies are aware of the need for officers to protect information and to oversee a security management system. However, despite the growing importance of information security officers, there is a lack of research on their roles and characteristics. This study validates the relationship between determinants that affect the performance of information security. And a structural equation model was presented and empirically analyzed to see the impact of the internal and external characteristics of the staff in charge of information security on the organization's information security performance.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1999년도 하계학술대회 논문집 E
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• pp.2259-2261
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• 1999

In this paper, an ozonizer, which can generate individual and superposed silent discharge, using three-phase voltage has been designed and manufactured. The ozonizer consists of 3 electrodes(Central Electrode, Internal Electrode and External Electrode) and 2 gaps(gap between Central Electrode and Internal Electrode, gap between Internal Electrode and External Electrode). Ozone is generated according to voltage supplying method to each electrode by individual silent discharge and three-phase superposed discharge. The characteristics of ozone generation were investigated with variation of discharge power and the quantity of supplied gas($O_2$). In case of individual silent discharge, the maximum values of ozone concentration, ozone generation and ozone yield were obtained between internal electrode and external electrode, and its values were 2300[ppm], 570[mg/h] and 745[g/kWh] respectively. Each maximum values was 5039[ppm], 1773[mg/h] and 851[g/kWh] respectively, when three-phase superposed silent discharge was employed. Therefore, characteristics of ozone generation with three-phase voltage are improved compared with single-phase voltage because silent discharge is generated continuously.

• 임상간호연구
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• 제18권3호
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• pp.341-353
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• 2012

Purpose: This study was done to construct a hypothetical model to explain the factors influencing career commitment of nurses. Methods: Three factors (individual internal-, job- and career-characteristics) and 8 sub-factors were measured with Likert scales. Data collection was conducted from Jan. 11 to 31, 2011 using self-report questionnaires. Participants(738 nurses) were selected from 6 hospitals in 2 metropolitan cities of South Korea. Collected data were analyzed using SPSS Window 16.0 and Amos 19.0. Results: 1) Among the 3 factors, career commitment was most strongly influenced by career-characteristics. 2) Career commitment wasinfluenced by organizational-career-management but not by personal-career-management. 3) Career commitment was influenced by individual internal-characteristics but not by job-characteristics. 4) Of the 8 sub-factors, career commitment was most strongly influenced by desire-for-growth but not by self-efficiency. Conclusion: The results of this study indicate that in order to improve career commitment of nurses it is necessary to implement custom-made career development policies considering individual characteristics in the organizational level.

• 조명전기설비학회논문지
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• 제14권2호
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• pp.59-67
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• 2000

본 논문에서는 단목무성방전과 3상 전압을 사용한 중첩무성방전을 인가할 수 있는 오존발생기를 설계.제작하였다. 오존발생기는 3개의 전극(중심천극, 내부천극 및 외부전극)과 2개의 방전갭(중심전극과 내부전극 사이의 갭 및 내부전극과 외부전극 사이의 갭)으로 구성되어 있으며, 단목무성방전과 3상 중접방전이 인가되는 방식에 따라 오존화 가스가 생성된다. 이때 방전전력과 원료가스($O_2$)의 유량의 변화에 따른 오존생성특성을 연구한 결과, 단독무성방전의 경우, 최대 2300[ppm], 570[mg/h] 및 745[g/kWh]의 오존생성특성을 얻을 수 있었으며,3상 전압을 인가한 경우에는 5039[ppm], 1773[mg/h] 및 851[g/kWh]을 각각 얻을 수 있었다. 따라서 3상 중첩무성방전 이 단독무성방전에 비하여 오존생성특성올 향상시킬 수 있음을 확인하였다.

• Tuberculosis and Respiratory Diseases
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• 제87권3호
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• pp.386-397
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• 2024

Background: Despite the global increase in nontuberculous mycobacterial pulmonary disease (NTM-PD), clinical characteristics show geographical variations. We investigated the clinical characteristics of patients with NTM-PD in South Korea. Methods: We systematically reviewed articles concerning patients with NTM-PD in South Korea until February 2022. Individual participant data, regardless of treatment, were collected using a standard case report form. Results: Data of 6,489 patients from 11 hospitals between 2002 and 2019 were analyzed. The mean age was 61.5±11.7 years, of whom 57.7% were women. Mycobacterium avium (41.4%) and Mycobacterium intracellulare (38.4%) comprised most of the causative species, followed by Mycobacterium abscessus subspecies abscessus (8.6%) and M. abscessus subspecies massiliense (7.8%). Bronchiectasis (59.4%) was the most common pulmonary comorbidity. Although reported cases of NTM-PD increased over the years, the proportions of causative species and radiologic forms remained similar. Distinct clinical characteristics were observed according to age and sex. Men were older at the time of diagnosis (median 63.8 years vs. 59.9 years, p<0.001), and had more cavitary lesions than women (38.8% vs. 21.0%, p<0.001). The older group (≥65 years) had higher proportions of patients with body mass index <18.5 kg/m² (27.4% vs. 18.6%, p<0.001) and cavitary lesions (29.9% vs. 27.6%, p=0.009) than the younger group. Conclusion: We conducted a meta-analysis of the clinical characteristics of patients with NTM-PD in South Korea, and found age- and sex-related differences in disease-specific severity. Further investigation would enhance our comprehension of the nature of the disease, and inherited and acquired host factors.

• 한국응용과학기술학회지
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• 제40권6호
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• pp.1498-1505
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• 2023

본 연구는 헤어미용실 종사자의 개인특성에 따른 서비스지향성의 차이를 규명하고, 서비스지향성에 영향을 미치는 헤어미용실의 내부마케팅 요인을 규명하는 것이 목적이다. 하고자 하였다. 연구방법으로서 실증적 연구를 위한 설문지는 경남의 헤어미용실 종사자로부터 수집하였고, 수집된 설문지를 IBM SPSS Statistics 26을 통하여 분석한 결과는 다음과 같다. 첫째, 헤어미용실 종사자의 개인특성에 따른 서비스지향성의 차이를 분석한 결과, '40대 이상' 집단과 '근무기간 10년 이상' 집단이 다른 집단에 비해 서비스지향성이 통계적으로 높게 나타났다. 둘째, 내부마케팅과 서비스지향성의 인과관계를 분석한 결과, 내부마케팅 중에서 복지후생, 보상시스템, 교육훈련 등이 각각 서비스지향성에 통계적으로 영향을 미치는 것으로 나타났고, 특히 보상시스템이 서비스지향성에 가장 강한 영향을 미치는 것으로 나타났다. 따라서 헤어미용실 종사자의 개인특성을 고려한 내부마케팅 활동을 통하여 고객에 대한 서비스지향성을 향상시켜야 한다. 서비스지향성의 향상은 고객의 재이용의도를 의미함으로 궁극적으로는 헤어미용업체의 경영성과가 더욱 향상될 수 있음을 시사한다.

• 전기학회논문지
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• 제56권5호
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• pp.910-914
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• 2007

Recently, a study on the energy conversion efficiency and up sizing' technology of dye-sensitized solar cell (DSC) which is focused in considering a new alternative solar cell has been executed. But consideration for the cell characteristics about an internal electronic flow on a large-scaled DSC has not been carried out yet. In this study, we have chosen a solar cell width as a variable of a large-scaled DSCs and confirmed electric characteristics of an individual cell. First, Pt counter electrode surface of DSC is deposited by RF sputtering methode and the electrochemical properties of Pt electrodes was investigated by cyclic -voltammetry. With the Pt electrode, we fabricated DSC samples of different width. As a result, the higher the internal resistance of DSC becomes, the wider the width gets. Internal resistance makes it difficult to collect photoelectron generated from dye. Ultimately up sizing DSC causes the increase of internal resistance and then has a bad effect on the cell characteristics.

• 한국과학교육학회지
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• 제17권4호
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• pp.347-358
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• 1997

Locus of Control of Reinforcement (LOCR)' is considered as one of the most important factors on responsible environmental behaviors(REB). It is defined as 'an individual's perception of his or her ability to bring about change through his or her behavior'. This psychological construct is divided up into two directions: the external locus and internal locus. The internal locus is important as a predictor of REB. Recently, 'The Environmental Action Internal Control Index: EAICI' has been developed and it is a valid and reliable instrument to measure the relationship of two variables. The purposes of this study were to develop a strategy to reinforce the internal locus or to converse external locus to internal locus. and to verify the effects by EAICI. A new strategy, 'Self Control Management Strategy' was based on the characteristics of internal locus and the key idea of this was to self-control and to manage the courses by themselves. EAICI scores of the control group was 99.83. All of them were internal and the LOCR of females was more internal than that of the males. This strategy was applied when the instructions were carried out on seven environmental issues by the experimental group. According to the results. the seven points of the EAICI were increased significantly. Therefore this strategy is helpful in reinforcing the internal locus or to converse external locus to the internal locus.

• 보건행정학회지
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• 제13권4호
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• pp.66-83
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• 2003

Self-efficacy is a person's perceived capability to perform a behavior. We have studied the antecedents of self­efficacy, and its moderating role on the relationship between job characteristics and job satisfaction. Data is collected through questionnaire from 910 employees of 6 large hospitals in Korea. The results show that individual's internal locus of control has positive relationship with self­efficacy and self-efficacy has positive relationship with job satisfaction. Contrary to the hypothesis, supervisors' transformational leadership doesn't show any relations with self­efficacy. The moderating role of self efficacy on the relationship between job characteristics and job satisfaction is supported. These results suggest that hospital managers should manage the self­efficacy as an important instrument of enhancing productivity and employee satisfaction.

• Journal of Biosystems Engineering
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• 제23권6호
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• pp.615-620
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• 1998

The nondestructive internal quality evaluation of agricultural products has been strongly required from the needs for individual inspection. In recent, ultrasonic wave has been considered as a solution for this problem. It transmit well through most materials and can handle safely and easily. However, specially in a watermelon, it is known that general frequency band (higher than 20kHz) ultrasonic waves do not transmitted well due to severe attenuation. The objectives of this study were to find out the proper waveform and frequency of the ultrasonic waves that transmit well inside the watermelon, and to analyze the transmitted waveform in order to make clear the structure of wave propagation in watermelon. The result of several experiments showed that 2kHz shear wave was the most suitable for the detection of internal cavity in the watermelon. Also, it was found that the surface wave did not influence the directly transmitted bulk wave. These results could be a basis of application of ultrasonic wave on the evaluation of internal quality of the watermelon.