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딥러닝 기반 달 표면 모사 환경 실시간 객체 인식 및 매칭 시스템 개발
나종호,공준호,이수득,신휴성,Jong-Ho Na,Jun-Ho Gong,Su-Deuk Lee,Hyu-Soung Shin 한국암반공학회 2023 터널과지하공간 Vol.33 No.4
Continuous research efforts are being devoted to unmanned mobile platforms for lunar exploration. There is an ongoing demand for real-time information processing to accurately determine the positioning and mapping of areas of interest on the lunar surface. To apply deep learning processing and analysis techniques to practical rovers, research on software integration and optimization is imperative. In this study, a foundational investigation has been conducted on real-time analysis of virtual lunar base construction site images, aimed at automatically quantifying spatial information of key objects. This study involved transitioning from an existing region-based object recognition algorithm to a boundary box-based algorithm, thus enhancing object recognition accuracy and inference speed. To facilitate extensive data-based object matching training, the Batch Hard Triplet Mining technique was introduced, and research was conducted to optimize both training and inference processes. Furthermore, an improved software system for object recognition and identical object matching was integrated, accompanied by the development of visualization software for the automatic matching of identical objects within input images. Leveraging satellite simulative captured video data for training objects and moving object-captured video data for inference, training and inference for identical object matching were successfully executed. The outcomes of this research suggest the feasibility of implementing 3D spatial information based on continuous-capture video data of mobile platforms and utilizing it for positioning objects within regions of interest. As a result, these findings are expected to contribute to the integration of an automated on-site system for video-based construction monitoring and control of significant target objects within future lunar base construction sites.
JD-R 모형을 이용한 호텔종사원들의 직무자원들의 차별적 효과 -대응가설을 중심으로-
나종호 ( Jong Ho Na ) 대한관광경영학회 2014 觀光硏究 Vol.29 No.2
본 연구는 호텔종사원들의 감정적 직무요구가 감정적 탈진에 영향을 미치고 감정적 탈진은 감정적 몰입도에 영향을 미치는 매개과정을 분석하였다. 또한 감정적 직무요구가 감정적 탈진에 미치는 영향이 감정적(인지적) 직무자원의 크기(조절변수)에 의하여 달라지는지에 관한 조절효과를 살펴보았다. 그리고 매개분석과 조절분석을 결합하여 매개과정이 조절변수에 의하여 조절되는지에 관한 조절된 매개분석을 실시하였다. 국내호텔에 근무하는 175명의 호텔종사원들의 설문지를 이용하여 자료분석을 실시한 결과 주요결론들은 다음과 같다. 먼저 감정적 직무요구가 감정적 탈진에 미치는 영향이 감정적 직무자원에 의하여 조절되는 조절효과가 나타났고 인지적 직무자원에 의해서는 조절되지 않았다. 즉, 감정적 직무자원의 크기가 증가할수록 감정적 직무요구가 감정적 탈진에 미치는 부정적인 효과는 점점 감소하는 것으로 나타났다. 이는 삼중대응기준(triple match principle)의 효과를 지지하는 것이다. 둘째로 감정적 직무요구는 감정적 탈진에 영향을 미치고 감정적 탈진은 감정적 몰입도에 영향을 주는 매개효과가 확인되었다. 셋째, 이러한 매개효과는 감정적 직무요구의 크기가 증가함에 따라 감소하는 조절된 매개효과가 나타났다. 기존 연구들은 직무요구가 탈진에 미치는 영향이 직무자원에 의하여 조절되는 단순조절분석만을 실시한 반면에 본 연구는 매개효과분석과 조절효과분석을 결합하여 조절된 매개분석을 실시하였다는 특징이 있다. 또한 직무요구와 직무자원이 동질적인 차원인 경우에 조절효과가 나타났으므로 이에 입각하여 호텔경영자들은 호텔종사원들의 감정적 탈진을 감소시키고 조직몰입도를 증가시키기 위해서는 호텔종사원들에게 부과되는 직무요구에 대응되는 직무자원을 제공 또는 개발시켜야 할 것이다. The aim of this study was to investigate whether job resources should be matched to show moderating effects of job resources(matching hypothesis). Based on the Demand-Induced Strain Compensation(DISC) Model that stipulates that specific job resources should match specific job demands to attenuate the negative effect of job demands, mediation, moderation and moderated mediation analyses were performed to test various hypotheses. Self-report questionnaires were distributed to 212 hotel service employees, of which 175 returned the questionnaire. Findings showed that emotional job demands significantly affected emotional exhaustion and emotional exhaustion significantly influenced affective commitment, meaning that emotional exhaustion mediated the effects of emotional job demands on affective commitment. And emotional job resources moderated the relation between emotional job demands and emotional exhaustion which supports the triple match hypothesis. Particularly, results of moderated mediation analysis demonstrate that, for emotional job resources, the conditional indirect effect of emotional job demands was stronger and significant in the low emotional job resources condition but were not significant in the high emotional job resources condition, indicating that emotional exhaustion would mediate the relation between emotional job demands and affective commitment, but only at lower levels of emotional job resources. Providing hotel service employees with more matching job resources would be necessary to make emotional job demands less stressful.
박성규(Park Seong-Kyu),나종호(Na Jong-Ho) 한국상품학회 2004 商品學硏究 Vol.- No.32
Four categories of non.financial measures ""Comprehensive management efficiency"", ""Employees and organization system"", ""Marketability"" and ""Technical.superiority"" were used in this study. These four categories are composed of 17 factors and 55 appraisal standards. As non.financial values are reflected to the investment validity evaluation, investment organizations could reduce errors in their investment decision. In the future, time series analysis is recommended for the some variables in this study. In addition, investment specialists should systemize non.financial evaluation standards. Each variable in this study should be reinspected through more sophisticated studies.