• 임상간호연구
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• 제29권2호
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• pp.186-197
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• 2023

Purpose: The purpose of this study was to develop a scale to measure professionalism of clinical nurses and evaluate the reliability and validity of the scale. Methods: DeVellis's scale-development eight steps were applied. The initial items were developed through a literature review and discussion with investigators, and the content validity was verified by seven experts. The data were collected from 250 hospital nurses for exploratory factor analysis and 217 hospital nurses for confirmatory factor analysis. Exploratory and confirmatory factor analyses were utilized to assess the construct validity. Cronbach's ⍺ was used to test the internal consistency reliability. Results: The results of the exploratory and confirmatory factor analyses showed that the scale comprised four factors: professional skill(eight items), sense of ethics (five items), knowledge-seeking activities (four items), and autonomy(three items). The four-factor structure was validated (x 2 =600.85 p<.001, GFI=.88, CFI=.84, RMSEA=.07), and Cronbach's ⍺ for the total scale was .84. Conclusion: The study results showed satisfactory reliability and validity of the professionalism measurement scale for clinical nurses. This scale has potential as an appropriate instrument for measuring clinical nurse professionalism.

• 전자공학회논문지B
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• 제29B권8호
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• pp.44-53
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• 1992

In this paper, a matching method is proposed to improve the correct matching rate in stereo correspondence matching in which the fingerprint of zero-crossing points on the scale-space is used as the robust matching feature. The dynamic programming, which is appropriate for the fingerprint feature, is introduced for correspondence matching. We also improve the matching rate by using the post-processing for correcting mismatched points. In simulation, we apply the proposed algorithm to the synthetic and real images and obtain good matching results.

• 대한안전경영과학회지
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• 제6권2호
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• pp.263-274
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• 2004

The foreign capital of appropriate scale is affirmative in stabilizing the domestic foreign exchange and stock market. But its excessive scale threatens corporate governance by a hostile M&A and causes the out-flow of national wealth and the unhealthiness of finn because foreign investors require high dividend through the superiority of stock ownership ratio. Therefore, the government and corporate must make the defensive countermeasure of corporate governance for the foreign capital immediately.

• 경영과학
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• 제14권1호
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• pp.1-10
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• 1997

We consider a problem of estimating the economics of scale for the natural gas industries. The goal programming/constrained regression is employed for estimating the economics of scale for the natural gas industry, and the problem is formulated as a linear programing problem. Also the translog cost function is used to represent the cost structure for the natural gas industry. The Korean Gas Corporation was selected as a case study, and we demonstrate that the suggested goal programming/constrained regression approach is appropriate for estimating the economies of scale for the Korean nature gas industry.

• 대한간호학회지
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• 제28권3호
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• pp.540-549
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• 1998

This study has been designed to develop a health behavior scale. Data were collected through a survey over a period of two month period. Subjects who participated in the study were 298 Korean adults. The author used a convenience sampling method. The analysis of the data was done with SPSS PC for descriptive statistics and factor analysis. Initially 34 items were generated from the interview data of twenty one adults and from literature review and survey. This preliminary scale was analyzed for a reliability and validity. The results are as follow : 1. Crombach Coefficient alpha for the 30 items was .7907. 2. Factor analysis was done in order to confirm construct validity and nine factor were extracted from the results. These contributed 54.4% of the variance in the total score. 3. Nine factor label were 'exercise' 'stress management' 'energy conservation' 'limit in liking' 'selection of food' 'ingestion of natural food' 'health examination' 'relaxation' and 'nutrition'. The author suggests that this scale could be adequately applied in assessing the health behavior of Korean adults. The results of using this scale in a study can contribute to designing an appropriate health promotion strategy.

• 제어로봇시스템학회논문지
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• 제11권3호
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• pp.246-253
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• 2005

An experimenal study on flight control of high-speed AEV(Aero-levitation Electric Vehicle) scale model in wind-tunnel is conducted. The AEV is to fly at very low altitude in predesigned track so that it is always under the wing-in-ground effect. The experiment is intended to fly the scale model to follow the predesigned altitude schedule while holding its attitude (pitch, roll, and yaw). Especially, the altitude changes for climb, cruise, and descent with constant pitch angle are most important maneuvers. The experiment shows that the required mission flights can be performed with appropriate sensors, processors, and actuators.

• 한국지진공학회:학술대회논문집
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• 한국지진공학회 2005년도 학술발표회 논문집
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• pp.461-468
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• 2005

In this paper, mixed mode magneto-rheological (MR) damper, which is applicable for vibration control of a small scale multi-story structure, is devised. First, the schematic configurations of the shear, flow, and mixed mode MR dampers are described with design constraints and then the analytical models to predict the field-dependent damping forces are derived for each type. Second, an appropriate size of the mixed mode MR damper is manufactured and its field-dependent damping characteristics are evaluated in time domain. Finally, the performance of the manufactured MR damper which is semi-actively applied to a small scale building excited by earthquake load, is numerically evaluated.

• 한국의류학회지
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• 제34권6호
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• pp.913-927
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• 2010

This study investigates the influence of Likert scale formats such as the number of response categories and the inclusion of a mid-point from a methodological point of view using instruments that measure a fashionmarketing-related subject. Using a self-administered questionnaire, 201 respondents rated their economic clothing shopping orientation on three formats of scales that differed only in the number of response categories (ranging from 5 to 7) from February 8 to February 12, 2010. Descriptive statistics, Spearman's rank order correlation, t-test, exploratory factor analysis, confirmatory factor analysis, Pearson's correlation, and Cronbach's alpha were used in the analysis. The results are as follows. First, three scale formats were generally suitable for use due to validity and reliability. Second, the response results varied with the number of categories and the inclusion of a mid-point, although the differences were statistically insignificant (with only a few cases that differed). Third, construct validity was more secure in scales with fewer categories, whereas convergent and discriminant validity was generally good in all scale formats. Fourth, reliability coefficients were higher in scales with more categories. Fifth, the number of categories was of greater importance to instrument design than the inclusion of a mid-point. Implications for appropriate scale designs are suggested in this study.

• 한국잠사곤충학회지
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• 제49권1호
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• pp.28-32
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• 2007

누에체액이 동물세포 배양의 필수첨가물인 FBS를 대체할 수 있는 세포증식 효과가 있는 것으로 확인되었으나, 누에의 배발에 상처를 내어 채혈하는 방법으로는 대량 채취가 어렵다. 본 연구에서는 이러한 문제점을 해결코자 대량의 체액을 한꺼번에 얻을 수 있는 대규모 채혈법을 검토하게 되었다. 1. 누에 머리부분과 꼬리부분(배발 포함)에 상처를 낸 후 원심하여 체액을 채취하는 방법(절피원심법)이 기존의 소규모 채취한 체액과 유사한 세포증식 촉진효과를 보였다. 2. 절피원심한 체액의 원심속도에 따른 세포증식 촉진 효과는 500rpm과 1000rpm에서 양호한 값을 보였다. 3. 원심속도를 500rpm으로 고정한 경우 원심시간을 5분에서 30분까지 달리하여도 세포증식 효과는 유사하였고, 체액 회수율은 원심시간이 길어질수록 증가하였으나 일정시간 이상부터는 증가하지 않았다. 4. 절피원심법으로 대규모 채취한 체액의 액상회수율은 누에(백옥잠)생체중의 19.5%이었고, 분말회수율은 1.4% 이었으며, 분말체액에서도 세포증식 촉진 효과가 인정되었다.

• 한국심리학회지 : 문화 및 사회문제
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• 제23권3호
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• pp.381-407
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• 2017

본 연구에서는 사회적 재난으로 인한 간접외상 척도(ITSSD: Indirect Trauma Scale of Social Disaster)를 개발하고 그 타당도를 검증하였다. ITSSD의 문항구성을 위해 경험적 기술문을 수집하였고 탐색적 요인분석을 실시하여 21개 문항으로 최종 선정하였다. 연구 결과, 사회적 재난으로 인한 간접외상 척도의 문항 내적 일치도가 높았으며(Cronbach's α=.95) 확인적 요인분석 결과 개인의 대응 반응, 가해자에 대한 반응, 세상에 대한 불신 반응, 증상 반응 4요인으로 구성되어 있는 것으로 나타났다. 또한 외상 후 위기 체크리스트, 상태-특성 불안검사, 한국판 수용-행동 척도, 용서 특질 척도, 삶의 만족도 척도와의 상관을 살펴보면 결과, 준거타당도가 검증되었다. 마지막으로 본 척도가 사회적 재난으로 인한 간접외상에 취약한 집단과 취약하지 않은 집단을 변별하는 기능을 잘 할 수 있는지에 대해서 확인하기 위해 성차를 살펴본 결과, 통계적으로 유의한 차이를 나타내는 것으로 나타났다. 추가적으로 본 연구의 함의, 한계 및 추후연구에 관한 제안을 제시하였다.