• 디지털융복합연구
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• 제14권11호
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• pp.527-537
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• 2016

본 연구는 간호대학생의 대인관계 조화, 스트레스 대처방식이 대학생활 적응에 미치는 영향을 파악하기 위한 서술적 조사연구이다. 대상자는 경북지역 2개 대학 간호학과 1, 2학년 재학생 231명이며, 2015년 12월 1일~11까지 설문조사 하였고, 기술통계, t-test, ANOVA, Pearson correlation coefficients, multiple regression으로 분석하였다. 대학생활 적응은 대인관계 조화 및 스트레스 대처방식과 유의한 상관관계를 보였다. 간호대학생의 대학생활 적응은 일반적 특성 중 학년, 간호학 지원동기, 간호학 전공만족도 및 학업성적에 따라 유의한 차이가 있었다. 대학생활 적응에 유의한 영향을 미치는 변수는 대인관계 조화(${\beta}=.27$, p<.001), 문제중심 대처(${\beta}=.25$, p<.001), 정서적 대처(${\beta}=-.25$, p<.001), 소망적 사고 대처(${\beta}=-.20$, p<.001)로 나타났고, 이들 변수의 대학생활 적응에 대한 설명력은 23%이었다. 결론적으로, 적절한 스트레스 대처방식과 대인관계 조화능력을 증진시키는 것은 간호대학생의 대학생활 적응을 향상시키는데 효과적인 전략이 될 수 있다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1997년도 추계학술대회 논문집 학회본부
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• pp.603-605
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• 1997

A new algorithm using 1-dimensional wavelet transform for autofocusing of optical instrument has been developed. Previous studies based on the conventional frequency analysis have shown that as the lens-object distance approaches the optimum value, the high frequency energy in the corresponding image shows a consistent increase. However, as conventional frequency analysis techniques hide spatial distribution of each band energy, shape information in the original signal cannot be easily utilized. In this paper, a newly devised wavelet based focus measuring scheme is presented. Unlike other frequency domain analysis techniques that simply produce "frequency-only" spectra, wavelet analysis provides a "time-frequency" localized view of a given signal. As a result, both frequency band filtering and spatial distribution filtering can easily be realized. Depending on the proposed focus quality measuring algorithm, a fast and reliable automatic focus adjustment of optical devices could be implemented.

• 한국멀티미디어학회논문지
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• 제16권11호
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• pp.1261-1271
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• 2013

Zoom tracking involves the automatic adjustment of the focus motor in response to the zoom motor movements for the purpose of keeping an object of interest in focus, and is typically achieved by moving the zoom and focus motors in a zoom lens module so as to follow the so-called "trace curve", which shows the in-focus motor positions versus the zoom motor positions for a specific object distance. Thus, one can simply implement zoom tracking by following the most closest trace curve after all the trace curve data are stored in memory. However, this approach is often prohibitive in practical implementation because of its large memory requirement. Many other zoom tracking methods such as GZT, AZT and etc. have been proposed to avoid large memory requirement but with a deteriorated performance. In this paper, we propose a new zoom tracking method called 'Approximate Feedback Zoom Tracking method (AFZT)' on DM36x-based IP network camera, which does not need large memory by approximating nearby trace curves, but generates better zoom tracking accuracy than GZT or AZT by utilizing focus value as feedback information. Experiments through real implementation shows the proposed zoom tracking method improves the tracking performance and works in real-time.

• 한국측량학회지
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• 제13권1호
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• pp.107-113
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• 1995

일반적으로 측지망 최적화의 목적은 측지망의 형상과 관측계획의 문제를 해결하기 위한 것이다. 본 연구에서는 측지망의 형상은 일정한 것으로 간주하고, 측지망의 정확도를 향상시키기 위한 조정점의 선택과 조정방법에 관해 고찰해보고자 한다. 국가기준점을 구성하는 측지망의 조정계산은 조정기준점의 선택과 조정방법에 따라 그 결과가 달라질 수 있다. 따라서 본 연구에서는 모든 점을 고정하지 않는 자유망조정 방법에서 조정기준점으로 선택한 기준점좌표를 고정시켜 자유망조정을 반복 수행하는 알고리즘을 소개하고, 조정점으로 사용한 기준점의 오차를 점검하여 오차가 큰 기준점은 미지점으로 간주하고 반복조정하므로써 조정망의 신설점의 좌표를 최적화할 수 있는 방법을 제안하였다. 본 연구의 조정계산 방법을 시뮬레이션 망에 적용한 결과, 조정점으로 선택한 기준점의 성과에 대한 오차를 확인할 수 있었으며, 오차가 큰 조정기준점을 제외하므로써 조정망의 오차를 줄여 신설망의 좌표를 최적화할 수 있음을 알 수 있었다 따라서 국가기준점망의 순차 조정이나 국가기준점을 이용한 공공측량 등에 이 방법을 적용하므로써 조정망의 정확도를 높일 수 있을 것으로 사료된다.

• 아태비즈니스연구
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• 제10권3호
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• pp.125-142
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• 2019

The study wanted to verify the effect of emotional sub-compression, a negative variable of emotional labor, on job performance, on security personnel working at private security companies, and further to verify how the impact on emotional sub-compression can affect job performance through the first draft of regulation. Empirical analysis through the study model showed that emotional edema was not a significant effect, but a negative effect on job performance, and that it did not affect the control focus itself. This revealed that emotional harmony has been shown to have a negative impact on performance due to the present state and conflicting situations in one's emotions, which means that emotional harmony does not affect negative or positive effects depending on a person's attributes. It also showed that the temperamental control focus on job performance had a positive impact on employees with an improvement focus and had a negative impact on employees with a preventive focus, and that a temperamental control focus between emotional dissonance and job performance had an effect. This indicated that job performance was affected by a temperamental control focus and that employees with an improvement focus had a positive effect and had a positive effect on performance. The implications of the study in this study are that it can have target differentiation in the areas where the study was conducted on guard workers, a social issue related to the study of emotional labor, and it can be meaningful that the study of emotional labor had a control focus and measured both positive and negative tendencies. It is also believed that there will be contributions to the verification of differences in performance resulting from employee propensity and by linking it with a variable called emotional instability. However, the data collected have the limitations of the subject and region, and the emphasis on cross-sectional analysis and the representative of the various emotions to verify the negative effects of emotional labor, and the problem of securing reliability related to the adjustment focus verification are the limitations of the research.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.1511-1516
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• 2011

The maintenance of the turnout is composed of signal field and track field on business, the electrical and mechanical field on system. adjustment and maintenance carry forward through coordination with these fields. In the case of turnout equipment used in a first phase of Seoul-Busan high-speed train, it is treated by classifying as mechanical adjustments and electrical adjustments. Mechanical adjustment is conducted with focus on fine adjustment to meet maintenance standards limits(1mm or less) about interval of basic rail and tongue rail about each part of track transition equipment. This refers to mechanical adjustments performed mainly with physical changes and movement characteristics between basic rail and tongue rail by considering the overall environment surrounding track side of section installed track transition equipment. However, these series of maintenance are conducted in state that high-speed train is not in the process from 1 am to 4 am at night, but common workers for maintenance are not familiar with the operation and checking about various situation, and the workers are even insufficient. Maintenance training using mixed reality is conducted in the place of business, we tried to overcome several problems of safety and time reduction through this training.

• 응용통계연구
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• 제24권4호
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• pp.575-586
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• 2011

본 연구는 보험산업에서 관심을 갖는 파산확률의 근사적 추이를 살펴보기 위하여 크레임의 분포가 정규변동성 성질을 갖는 사례를 통하여 파산가능성의 추이를 살펴보고, 정확한 파산확률 유도에 결정적인 역할을 하는 계수를 추정하는 실증연구에 초점을 둔다. 추정된 결정계수와 보험위험 확률모형의 안전지수와의 연관성을 분석하여 파산확률의 추이를 진단하는 방법도 함께 진행된다.

• 로봇학회논문지
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• 제11권2호
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• pp.51-59
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• 2016

In this paper we present (1) analysis of imaging sonar measurement for two-view relative pose estimation of an autonomous vehicle and (2) bundle adjustment and 3D reconstruction method using imaging sonar. Sonar has been a popular sensor for underwater application due to its robustness to water turbidity and visibility in water medium. While vision based motion estimation has been applied to many ground vehicles for motion estimation and 3D reconstruction, imaging sonar addresses challenges in relative sensor frame motion. We focus on the fact that the sonar measurement inherently poses ambiguity in its measurement. This paper illustrates the source of the ambiguity in sonar measurements and summarizes assumptions for sonar based robot navigation. For validation, we synthetically generated underwater seafloor with varying complexity to analyze the error in the motion estimation.

• Journal of the Optical Society of Korea
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• 제20권5호
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• pp.633-640
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• 2016

In a dual lens stereoscopic camera, a convergence point determines the stereopsis effects of a video. When a user zooms an object, a convergence point is fixed since it is not coupled with a zoom function. Due to the fixed convergence point, it is possible for a zoom to cause the excessive binocular disparity resulting in visual discomfort. In this paper, to solve this problem, we build the relational model including all phenomena possible to arise and propose the adjustment methods of a convergence point by the positions of a focus, an object and a convergence point. We also evaluate the experiments measuring a binocular disparity and the subjective test to investigate the visual comfort. The results show that one of the proposed methods produced more comfortable 3D images to viewers than the others.

• 산업융합연구
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• 제2권1호
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• pp.187-216
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• 2004

After Asian financial crisis hit the Korea, Korean government and Korean firms need to restructure their system. Specially financial sector has to renew its system. One way renew its system was adjust company's labor system. The forms of labor adjustment are external numerical flexibility, externalization, internal numerical flexibility, functional flexibility and wage flexibility. These five forms based on two big categories which are wage flexibility and employment flexibility. This study only focus on th effect of employment flexibility in financial sector in Korea. Employment flexibilities can be practice as employment adjustment. Also we concentrate on separation and re-accessors to other financial institute after the separation. The result shows that Korean financial sector are in the range of 10.78% and the job destruction rates are about 11.26%. During the period from year 1998 to year 2002, the numbers of accession has down about 30%. The logit statistical analysis for separation shows that demographical variables and the reasons of separation affected separation and reemployment.