• Title/Summary/Keyword: Deep survey

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Survey on Consumption Pattern of Ramyon in Seoul Area (서울지역의 라면 소비실태 조사)

  • Kim, Sung-Kon;Lee, Ae-Rang
    • Journal of the Korean Society of Food Culture
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    • v.4 no.4
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    • pp.395-404
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    • 1989
  • The consumption pattern of Ramyon(a deep-fried instant noodle) in Seoul area was surveyed in 1988. Of 2,432 consumers, 801 consumers were considered to be non-eating. Based on Ramyon eating consumers, most frequent consumption of Ramyon was 1-2 times per week. The frequency of consumption decreased in the order of middle school student, high school student, university student, office worker and housewife. Most consumers eat Ramyon because of convenience for meal substitution. Consumers considered that the taste of soup was more important than the texture of noodle. The most desirable texture and taste of soup were chewy and spicy, respectively. The consumption pattern of Ramyon between sex and among occupation groups were different. However, no significant differences were observed between sex and among occupation groups as far as quality factors were considered.

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Time-Dependent Degradation Model and Maintenance Cost of Rail line PC Beam Bridge in Project Level (Project level에서의 철도 PC Beam교량의 경년열화모델구성 및 유지관리비용 추정)

  • Kwon, Se-Gon;Park, Mi-Yun;Do, Jeong-Yun;Kim, Do-Kie
    • Proceedings of the KSR Conference
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    • 2008.11b
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    • pp.17-22
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    • 2008
  • Construction project have extremely high risk in the process of construction owing to unexpected event, like as design amendment. As a result, owner have to endure enormous extra-cost to control the risk and continue to the project having more higher uncertainty. Also, if the structure is completed, it is needed that the structure is protected and maintained continuously during life cycle time to satisfying original aim of structure itself. LCC analysis to calculate cost of structure alternatives divides into two stage, one is design_LCC and the other is maintenace_LCC. But two stages all is needed in the transition deterioration model to calculate more reasonable LCC analysis. This paper developed the model using analysis of FMS contents and survey from professional about Prestressed concrete beam girder bridge(PC Beam bridge)in railway. The model is focused in project level of PC beam because any condition state information for element level analysis can not get up. This paper is intended to use the developed model in LCC analysis of PC Beam bridge in railway and constitute the foundation to perform more deep study in the near future.

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Perception Comparison of Fostering Learner-generated Questions by the Questioning Attitude of Engineering Undergraduate Learners (공과대학생의 질문태도에 따른 학습자 질문 활성화 전략에 대한 인식 비교)

  • Jung, Youngsook;Sung, Jihoon
    • Journal of Engineering Education Research
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    • v.22 no.3
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    • pp.49-58
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    • 2019
  • The purpose of this study is to compare learners' perceptions regarding the processes and the educational effects of fostering learner-generated questions in engineering education according to the questioning attitude of engineering learners. For this, after developing and implementing the appropriate strategies for fostering learner-generated questions in an engineering statistics course, this study analyzed 56 learners' survey responses and used ANOVA to investigate the group differences. The results showed that the educational effects and implications of fostering learner-generated questions were different according to the learners' questioning attitude. The study also confirmed that learners' questioning attitude should be considered as one of the important learner's characteristics in developing and implementing the strategies of fostering learner-generated questions in engineering education. Especially, fostering learner-generated questions produced positive effects on the passive questioning learners but not particularly on the learners who were asking no questions at all in other courses. Learners who asked no questions still have difficulty in generating deep meaningful questions and presenting them and thus require more instructors' strategies and active support for them.

Influencing Factors of Sexual Intimacy and Satisfaction among Women within 1 Year after Mastectomy (유방절제술 후 1년 이내 여성의 성적 친밀감과 성만족에 영향을 미치는 요인)

  • Kim, Sunyoung;Ahn, Sukhee
    • Women's Health Nursing
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    • v.25 no.2
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    • pp.219-231
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    • 2019
  • Purpose: The purpose of this study was to identify the levels of body image, sexual intimacy, and sexual satisfaction, and to explore factors affecting sexual intimacy and satisfaction among women within one year of mastectomy. Methods: The present study was a cross-sectional survey and involved 101 women who had undergone mastectomy at a University hospital of D city, Korea. Measurement included the scales of body image, sexual intimacy, and sexual satisfaction. Results: Mean age of the subjects was 51 years. Scores of the body image, sexual intimacy, and sexual satisfaction were 59.62, 90.69, and 69.04, respectively. Body image, sexual intimacy, and sexual satisfaction were significantly related to each other. Sexual intimacy was higher when women were of young age (${\beta}=-.32$), had a shorter period since surgery (${\beta}=-.24$), and with higher levels of body image (${\beta}=.37$). Sexual satisfaction was higher when women had higher levels of body image (${\beta}=.19$) and greater levels of sexual intimacy (${\beta}=.74$). Conclusion: Higher levels of body image and greater levels of sexual intimacy were identified as the significant factors influencing sexual satisfaction among these women. Future research with a mixed-method research is needed to gain a deep understanding of the sexuality between women and their husbands.

Color Dispersion as an Indicator of Stellar Population Complexity for Galaxies in Clusters

  • Lee, Joon Hyeop;Pak, Mina;Lee, Hye-Ran;Oh, Sree
    • The Bulletin of The Korean Astronomical Society
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    • v.43 no.2
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    • pp.34.1-34.1
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    • 2018
  • We investigate the properties of bright galaxies with various morphological types in Abell 1139 and Abell 2589, using the pixel color-magnitude diagram (pCMD) analysis. The 32 bright member galaxies ($Mr{\leq}-21.3mag$) are deeply imaged in the g and r bands in our CFHT/MegaCam observations, as a part of the KASI-Yonsei Deep Imaging Survey of Clusters (KYDISC). We examine how the features of their pCMDs depend on galaxy morphology and infrared color. We find that the g - r color dispersion as a function of surface brightness (${\mu}r$) shows better performance in distinguishing galaxy morphology, than the mean g - r color does. The best set of parameters for galaxy classification appears to be a combination of the minimum color dispersion at ${\mu}r{\leq}21.2mag\;arcsec-2$ and the maximum color dispersion at $20.0{\leq}{\mu}r{\leq}21.0mag\;arcsec-2$: the latter reflects the complexity of stellar populations at the disk component in a typical spiral galaxy. Moreover, the color dispersion of an elliptical galaxy appears to be correlated with its WISE infrared color ([4.6]-[12]). This indicates that the complexity of stellar populations in an elliptical galaxy is related to its recent star formation activities. From this observational evidence, we infer that gas-rich minor mergers or gas interactions may have usually occurred during the recent growth of massive elliptical galaxies.

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Studies on the Growth Characteristics of the Trees in Parking Lot in the Apartment Complex (아파트 단지 지하주차장 상부에 식재된 교목의 생장 특성에 관한 연구)

  • Jang, Byoung-Kwan;Yun, Ju-Cheul
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.24 no.1
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    • pp.111-119
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    • 2021
  • This study was conducted to investigate the growth characteristics of artificially planted trees on top of the underground parking lots. The trees were planted 17 years ago and are now in good condition. The survey results are as follows. The planting depth of the trees was 0.9 - 1.3m. The horizontal roots of the trees were distributed in the depth of 0.2m ~ 0.6m, Growth condition was also considered to be good. Also, in the case of the straight root of the trees, the pine tree(Pinus densiflora) grew near the bottom but tree root was very thin, and the Japanese hackberry tree(Celtis sinensis) and the zelkova tree(Zelkova serrata) were seemed to bend at the bottom and to grow by changing direction. When trees were planted on artificial ground, the roots grew well horizontally, and the forces of growing vertically were much weakened. because the plants were planted in earth ball state. As a result, it was considered that the roots would hardly penetrate the bottom-pressing concrete floor.

IoT-Based Health Big-Data Process Technologies: A Survey

  • Yoo, Hyun;Park, Roy C.;Chung, Kyungyong
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.15 no.3
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    • pp.974-992
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    • 2021
  • Recently, the healthcare field has undergone rapid changes owing to the accumulation of health big data and the development of machine learning. Data mining research in the field of healthcare has different characteristics from those of other data analyses, such as the structural complexity of the medical data, requirement for medical expertise, and security of personal medical information. Various methods have been implemented to address these issues, including the machine learning model and cloud platform. However, the machine learning model presents the problem of opaque result interpretation, and the cloud platform requires more in-depth research on security and efficiency. To address these issues, this paper presents a recent technology for Internet-of-Things-based (IoT-based) health big data processing. We present a cloud-based IoT health platform and health big data processing technology that reduces the medical data management costs and enhances safety. We also present a data mining technology for health-risk prediction, which is the core of healthcare. Finally, we propose a study using explainable artificial intelligence that enhances the reliability and transparency of the decision-making system, which is called the black box model owing to its lack of transparency.

A Study on the Efficiency of Fashion Design Classes Using Humanities Self-Reflection Writing (인문학적 자기성찰 글쓰기를 활용한 패션디자인 수업의 효율성 연구)

  • Kim, Jin Hee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.46 no.4
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    • pp.600-612
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    • 2022
  • This study analyzed the learning effect, through a satisfaction survey and NVivo qualitative analysis, of fashion design classes using humanities self-reflection writing. The results are as follows. First, with regard to learning satisfaction, learners perceived the class as efficient and showed overall satisfaction. Second, learners' opinions were classified into self-reflection writing, design process, new experience of expression, and the understanding of class activities. Third, in self-reflection writing, learners discovered their tendencies and values while exploring their identity through deep thinking. Fourth, in the design process, learners set the design concept consistently through writing. Fifth, in the new experience of expression, learners recognized the idea produced through writing as the result of thought and considered it a new expression method for design. Sixth, in the understanding of class activities, learners were interested in the process and considered it an activity through which to build their own style in design expression. Design class activities using self-reflection writing drew a positive response and presented the possibility of educational use. The teaching method of this study is expected to be used as a humanistic method for expressions in various design fields.

Stellar photometric Properties in the outskirt of NGC 5236

  • Kim, Sanghyun;Kim, Minjin;Byun, Woowon;Sheen, Yun-Kyeong;Ho, Luis C;Lee, Joon Hyeop;Kim, Sang Chul;Jeong, Hyunjin;Park, Byeong-Gon;Seon, Kwang-Il
    • The Bulletin of The Korean Astronomical Society
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    • v.45 no.1
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    • pp.60.2-60.2
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    • 2020
  • In the hierarchical framework, galaxies grow through mergers and accretion. Those mechanisms leave faint features, such as stellar streams, shells and smooth stellar halos in the outskirts of galaxies. In order to search for those features in the nearby galaxies, we are conducting a KMTNet Nearby Galaxy Survey using the Korea Microlensing Telescope Network. We present a deep and wide-field imaging of NGC 5236, a barred spiral galaxy. In one-dimensional surface brightness profiles, we reach 28, 29 mag/arcsec2 in the R- and B-band, respectively. We find that the outer disk of NGC 5236 can be well described with a single exponential profile up to 17 kpc (~3.8 Reff) indicating that the excess light due to the stellar halo is not clearly detected. B-R color gradually increases towards the outskirts of the galaxy. It may reveal that stellar properties in the outskirts are marginally distinctive from those in the central part.

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A Study on the A.I Detection Model of Marine Deposition Waste Using YOLOv5 (YOLOv5를 이용한 해양 침적쓰레기 검출 A.I 모델에 대한 연구)

  • Wang, Tae-su;Oh, Seyeong;Lee, Hyeon-seo;Jang, Jongwook;Kim, Minyoung
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2021.10a
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    • pp.385-387
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    • 2021
  • Marine deposition waste threatens the book ecosystem and causes a decrease in catch due to ghost fishing, causing damage of about 370 billion won per year. In order to collect this, a current status survey is conducted using two-way ultrasonic detectors, diving, and lifting frames. However, the scope of the investigation is small to investigate a lot of sedimentary waste, and there is a possibility of causing casualties. This paper deals with the implementation of a high-accuracy marine deposition detection AI model by learning the coastal sediment image data of AI-Hub using the YOLOv5 algorithm suitable for real-time object detection.

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