PURPOSES : Sleeping hours are an critical factor that influences the lives of office workers. As for sleep characteristics, it is crucial to spend a lot of time; however, it is also important to ensure satisfactory sleep. This study attempted to analyze the factors affecting sleep in terms of time and satisfaction. METHODS : Sleep duration, which is a quantitative component of sleep, was composed of a continuous variable, and multiple regression analysis was employed. For the qualitative component of sleep, sleep time satisfaction was used, satisfaction was composed of binary type, and binary logistic regression analysis was used. Transportation characteristics, including personal and work characteristics, and other factors were used as independent variables. RESULTS : As a result of the analysis, various influencing variables were derived for both sleep duration and satisfaction. The higher the satisfaction with commuting time and commuting fee, age group, health level, and leisure time, the higher the sleeping hours and satisfaction. However, the higher the income or the choice of long-distance transportation, the lower both sleeping hours and satisfaction. Moreover, if they choose a car, have a high academic background, or have children, sleeping hours decrease, but satisfaction is high. Males, singles, and office workers with fewer than five employees had longer sleep hours but lower satisfaction. CONCLUSIONS : Commuting time and work characteristics have varying effects on sleep activity. Therefore, an alternative solution that can enhance both sleeping hours and sleeping hour satisfaction is proposed through the results of this study.

Visual inspection methods have limitations, such as reflecting the subjective opinions of workers. Moreover, additional equipment is required when inspecting the high-rise buildings because the height is limited during the inspection. Various methods have been studied to detect concrete cracks due to the disadvantage of existing visual inspection. In this study, a crack detection technology was proposed, and the technology was objectively and accurately through AI. In this study, an efficient method was proposed that automatically detects concrete cracks by using a Convolutional Neural Network(CNN) with the Orthomosaic image, modeled with the help of UAV. The concrete cracks were predicted by three different CNN models: AlexNet, ResNet50, and ResNeXt. The models were verified by accuracy, recall, and F1 Score. The ResNeXt model had the high performance among the three models. Also, this study confirmed the reliability of the model designed by applying it to the experiment.

열대 및 아열대성 비래해충으로 최근 국내에도 옥수수에 피해를 주고 있는 열대거세미나방의 온도별 발육특성을 인공먹이를 이용하여 사육 하며 조사하였다. 18, 21, 24, 27, 30, 32°C 항온조건에서 알에서 성충까지의 발육하기까지 각각 79.8, 54.2, 34.3, 28.4, 24.6, 24.0일이 소요되어 온도가 증가할수록 발육기간이 짧아졌다. 암컷 번데기의 발육기간은 수컷보다 짧았다. 유충은 보통 6령까지 발육하였으나 저온에서 7령 이상의 비 율이 증가하였다. 온도에 따른 발육은 직선회귀에 부합하였으며, 직선회귀식을 이용하여 각 발육태별 발육영점온도와 유효적산온도를 분석한 결 과, 알은 12.9°C와 37.0 DD, 유충은 11.3°C와 286.3 DD, 번데기는 12.6°C와 132.2 DD, 알에서 성충까지는 11.8°C와 456.8 DD 였다.

This research aims to investigate and analyze the development status of Chinese-language media operated by overseas Chinese in Korea, mainly to analyze the existing development problems, and to put forward constructive opinions and suggestions for the sustainable development of Chinese-language media in the future. This paper conducts an in-depth investigation and research on the development background, current situation and development dilemma of Korean Chinese-language media in East Asia under the overall background of the general development of overseas Chineselanguage media through the methods of literature research and mobile interview survey, grasps and analyzes the current development difficulties: (1) Insufficient operating funds; (2) Single service content; (3) Unstable user group; (4) Lack of professional teams and low content quality; (5) The existence of national identity problems; (6) Government policies and systems not open enough. In the conclusion, four opinions and suggestions for sustainable development are given : (1) The necessity of diversified and innovative development; (2) The expansion of the cooperation model; (3) The support of the government; (4) The necessity of concentrating the development of new media. Finally, the insufficiency of this thesis and future research directions are clarified.

본 논문은 대중음악을 새로운 관점으로 해석하는 방법을 탐색하기 위한 목적으로 연구되었다. 이 를 위해 정신분석학자 라캉이 제시한 순수욕망 이론을 바탕으로 방탄소년단의 「LOVE YOURSELF」 시리즈에 나타난 노랫말과 영상 표현을 분석했다. 순수 욕망이란 타자 또는 타인과 동일시되면서 존재하게 되는 삶의 형식에서 벗어난 자신의 고유한 욕망을 말한다. 그것은 라캉이 말하는 욕망의 윤리에서 논구되는 것이다. 욕망의 윤리는 우리의 삶에 바탕을 이루는 보편성이나 합리성이 내재한 불완전함을 알려주는 이론이다. 연구 방법은 라캉의 『세미나 7: 정신분석의 윤리학』에 나타난 순 수욕망에 대한 이론을 바탕으로 「LOVE YOURSELF」 뮤직비디오를 분석하는 질적 연구를 진행하였 다. 「LOVE YOURSELF」음악의 노랫말에 내재한 의미를 통해서 앨범 3부작과 라캉이 말한 상상계, 상징계, 실재계 사이의 연관성을 도출하고 순수욕망의 의미를 분석하였다. 구체적으로 『起 ‘Wonder’』에서는 순수욕망에 대해 질문하고, 『承 ‘Her’』와 『轉 ‘Tear’』를 통해서는 자 기 자신으로 존재하는 것이 아닌 문제를 제기한다. 그리고 마지막 앨범 『結 ‘Answer’』에서는 타인에게 완벽한 자신이 되는 것보다 영원히 완벽할 수 없는 자신을 받아들이고 자신의 욕망을 포 기하지 말라는 의미를 찾아낼 수 있었다. 본 연구의 필요성은 대중음악의 일정 영역이 순수욕망을 지향하고 있다는 점을 밝히고 이에 대한 대중음악 연구자들에게 순수욕망에 대한 관심을 두도록 제 언하였다.