• Journal of The Korean Association For Science Education
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• v.27 no.4
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• pp.337-345
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• 2007

The purposes of this study are to investigate and compare the characteristics of classification criteria of secondary school students and science teachers in relation to the three statesof matter. For this research, 76 middle school students in the7th grade who studied microscopic viewpoints about classifying the state of matter for the first time, 69 high school students in the 12th grade who studied Chemistry I and IIcourses successfully, and 130 secondary school science teachers, through a questionnaire. As a result, while having learned the three states of matter in the microscopic viewpoints, the majority of middle school students showed a high percentage of classification in the macroscopic viewpoints. For high school students, their percentage of classification included highmicroscopic viewpoints about solid and gas, the percentage of classification included macroscopic viewpoints about liquid state as alsohigh. The secondary school teachers gave answers in the macroscopic viewpoints and microscopic viewpoints equally, but their answers were just representation of the viewpoints list without the meaningful connection of the two type of viewpoints. To solve these problems, It is necessary to form connective change from the macroscopic viewpoints to the microscopic viewpoints about the criteria for classifying the States of Matter and various educational efforts.

• Journal of Service Research and Studies
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• v.14 no.2
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• pp.69-81
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• 2024

The The purpose of this study is to have a positive impact on the evaluation of the traditional market revitalization project by discussing the business details and implementation process of the commercial district revitalization project in depth. The research method uses practical methods for traditional market revitalization projects. First, the activation method of the place was examined through the concepts of Oldenburg's 'Third Place' and Carr et al.'s 'Five Demands for Public Space' and the theories related to non-face-to-face transactions were examined. The first study case was the commercial district revitalization project of the Cheongju Global Market Development Project(Seongan-gil Street Shopping Mall and Yukgeori traditional Market), which discussed revitalization of open space, revitalization through reproduction, and revitalization through festivals. The revitalization project through representation is a project to install a symbolic sculpture at the estimated location of the 'Namseokgyo' buried in Yukgeori traditional Market. The revitalization through the festival is the Korea Sale Festa, which is a vibrant business due to increased sales at traditional markets and shopping malls and floating population in open spaces. The second study case was the Cultural Tourism Promotion Project(Hanmin traditional Market), which discussed revitalization through the development of local brands and SNS content. In the conclusion, the relationship between the six projects and commercial district revitalization methods was discussed, and policy recommendations were made, mentioning the importance of reflecting regional characteristics in design planning. We hope that this study will be used to positively evaluate the traditional market revitalization project, showing that stakeholders are working hard to produce positive results within institutional limitations.

• The Korean Journal of Archival Studies
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• no.80
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• pp.197-232
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• 2024

This study aims to understand archival art, which is spreading in the art world, and to look at records in a new way. Archival art refers to the act of creating and exhibiting art using records as a medium of expression. Archival art is attracting attention as a method of exhibition and creation of works, forming a trend in contemporary art. Archival art was born amid changes in art creation methods resulting from the rise of conceptual art, the development of media including photography and advancements in digital technology, and the influence of Foucault and Derrida's discourse on archives. The encounter between archives and art, which originated from photographic aesthetics in the 1920s, led to archival turn in contemporary art in the 1990s, thanks to the spread of conceptual art, digital technology, and postmodernism. Archival art not only subverts traditional art creation methods, but also includes criticism and deconstruction of social systems, including modern archives. Archival art rearranges and reorganizes records according to the artist's intention, and even accepts fiction rather than fact. The essence of records in archival art is not the reproduction of the past, but the expression of present needs. The way records are utilized in archival art shakes up the concept of records in archival science, calling for a new look at records as objects with not only legal and administrative value but also aesthetic value.

• Journal of the Daesoon Academy of Sciences
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• v.48
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• pp.239-268
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• 2024

Video content is often used as a means of education due to the characteristics of the medium: representation, information delivery, immersion, and experience. In particular, religious films are being used more often in public schools and religious communities to promote understanding and inspiration. The purpose of this study is to examine how Daesoon Jinrihoe utilizes video content via the film, The Road to Peace and Harmony, and the videos that were made for the Museum of Daesoon Jinrihoe Museum. The study will also make suggestions regarding the future use of such contents. In Section 2 of this study, the status of the video contents as currently used by Daesoon Jinrihoe will be examined and analyzed in terms of how the film, The Road to Peace and Harmony, and the videos produced for the Museum of Daesoon Jinrihoe are being utilized. In Section 3, the limitations of Daesoon Jinrihoe's video contents will be considered in that these materials in terms of how these videos are only used within the religious order. There is the potential that such materials could be used in broader society. Lastly, in Section 4, it is proposed that video materials produced by Daesoon Jinrihoe could be used within multicultural religious education in a public setting beyond mere in-group religious education. Through this, it is hoped that Daesoon Jinrihoe will be able to expand as a world religion in a more timely manner than what would otherwise be achieved.

• Journal of Internet of Things and Convergence
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• v.10 no.2
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• pp.1-15
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• 2024

The construction of smart communities is a new method and important measure to ensure the security of residential areas. In order to solve the problem of low accuracy in face recognition caused by distorting facial features due to monitoring camera angles and other external factors, this paper proposes the following optimization strategies in designing a face recognition network: firstly, a global graph convolution module is designed to encode facial features as graph nodes, and a multi-scale feature enhancement residual module is designed to extract facial keypoint features in conjunction with the global graph convolution module. Secondly, after obtaining facial keypoints, they are constructed as a directed graph structure, and graph attention mechanisms are used to enhance the representation power of graph features. Finally, tensor computations are performed on the graph features of two faces, and the aggregated features are extracted and discriminated by a fully connected layer to determine whether the individuals' identities are the same. Through various experimental tests, the network designed in this paper achieves an AUC index of 85.65% for facial keypoint localization on the 300W public dataset and 88.92% on a self-built dataset. In terms of face recognition accuracy, the proposed network achieves an accuracy of 83.41% on the IBUG public dataset and 96.74% on a self-built dataset. Experimental results demonstrate that the network designed in this paper exhibits high detection and recognition accuracy for faces in surveillance videos.

• Journal of the Korea Society of Computer and Information
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• v.29 no.7
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• pp.41-51
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• 2024

In this paper, we explore the enhancement of target detection accuracy in the guided weapon using deep learning object detection on infrared (IR) images. Due to the characteristics of IR images being influenced by factors such as time and temperature, it's crucial to ensure a consistent representation of object features in various environments when training the model. A simple way to address this is by emphasizing the features of target objects and reducing noise within the infrared images through appropriate pre-processing techniques. However, in previous studies, there has not been sufficient discussion on pre-processing methods in learning deep learning models based on infrared images. In this paper, we aim to investigate the impact of image pre-processing techniques on infrared image-based training for object detection. To achieve this, we analyze the pre-processing results on infrared images that utilized global or local information from the video and the image. In addition, in order to confirm the impact of images converted by each pre-processing technique on object detector training, we learn the YOLOX target detector for images processed by various pre-processing methods and analyze them. In particular, the results of the experiments using the CLAHE (Contrast Limited Adaptive Histogram Equalization) shows the highest detection accuracy with a mean average precision (mAP) of 81.9%.

• Sim-seong Yeon-gu
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• v.36 no.1
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• pp.1-54
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• 2021

Princess Bari, the seventh daughter of the King and Queen, is abandoned at birth. She one day embarks on a solitary journey into the underworld to seek the antidote she needs to save her ailing father. The shamanic myth then depicts terrible ordeals, after which the Princess manages to obtain the elixir of life to bring her parents back to life, leading to her deification as the Queen of all shamans. The life of Princess Bari as the ancestor of shamans incorporates the necessary rite of passage to become a shaman, persevering through all manner of trials and tribulations until death and then being reborn. Princess Bari's story of deification as the goddess of shamans constitutes the archetype or the primitive image of the collective unconscious, the mytheme. From the perspective of analytical psychology, Princess Bari, who became the Queen of shamans after undergoing a process of pain, death, and then rebirth demonstrates a facet of the individuation process, evident in heroic mythology. Princess Bari not only cured her parents of disease but also brought them back to life. What enabled her to obtain the elixir to resurrect her parents was her love and compassion for them based on self-sacrifice, enduring all the trivial and repetitive undertakings of everyday life. She viewed the world and behaved from the perspective of a broader Self. Making herself a powerful healer through the ordeals in the underworld, Princess Bari is the psychopomp as well as the healer archetype. The sacred power of healing that goes beyond the Princess' sufferings represents the Self Archetype inherent in the mentality of the Koreans, in other words, a symbolic power that indicates the divine representation of a healer.

• Phonetics and Speech Sciences
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• v.16 no.1
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• pp.67-76
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• 2024

Recent advances in text-to-speech (TTS) technology have significantly improved the quality of synthesized speech, reaching a level where it can closely imitate natural human speech. Especially, TTS models offering various voice characteristics and personalized speech, are widely utilized in fields such as artificial intelligence (AI) tutors, advertising, and video dubbing. Accordingly, in this paper, we propose a one-shot multi-speaker TTS system that can ensure acoustic diversity and synthesize personalized voice by generating speech using unseen target speakers' utterances. The proposed model integrates a speaker encoder into a TTS model consisting of the FastSpeech2 acoustic model and the HiFi-GAN vocoder. The speaker encoder, based on the pre-trained RawNet3, extracts speaker-specific voice features. Furthermore, the proposed approach not only includes an English one-shot multi-speaker TTS but also introduces a Korean one-shot multi-speaker TTS. We evaluate naturalness and speaker similarity of the generated speech using objective and subjective metrics. In the subjective evaluation, the proposed Korean one-shot multi-speaker TTS obtained naturalness mean opinion score (NMOS) of 3.36 and similarity MOS (SMOS) of 3.16. The objective evaluation of the proposed English and Korean one-shot multi-speaker TTS showed a prediction MOS (P-MOS) of 2.54 and 3.74, respectively. These results indicate that the performance of our proposed model is improved over the baseline models in terms of both naturalness and speaker similarity.

• The Korean Journal of Archival Studies
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• no.79
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• pp.471-513
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• 2024

The monthly news and culture magazine, 'Sasanggye,' established by Jang Jun-ha from 1953 to 1970, served as a platform for government criticism and intellectual representation. The magazine created photographic-essays covering a variety of topics and utilized images as a visually impactful tool with news value. This paper aims to critically examine the photographic-essays within 'Sasanggye' as archival records, shedding light on their intrinsic value. Before delving into this assessment, the paper thoroughly explores the developmental process and characteristics of these photographic-essays. And based on the content divisions within the main text, the paper categorized the themes captured in the photographic essays into politics, economics, society, culture, and miscellaneous topics. It then introduced representative photographicessays. From an archival perspective, looking at photographs involves elucidating that photographs carry meanings beyond mere data. The photographic essays in 'Sasanggye' serve as photographic records providing evidence of 1960s Korean society and encapsulating crucial visual information. Furthermore, the photographic essays in 'Sasanggye' hold a historical significance in the aspect of Korean magazine documentary photography. The photo-essays in 'Sasanggye' carry worth in the history of photography and encompass evidential and informational values as photographic records.

• Information Systems Review
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• v.25 no.2
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• pp.77-101
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• 2023

Due to COVID-19, paid virtual live-stream concerts have emerged as an alternative format and a new revenue model for in-person live concerts. Despite the increasing scholarly and practical interest in how participants experience paid virtual live-stream concerts, few studies examined participants' consumption and participation experiences. Thus, this study aims to provide insights into consumers' virtual live-stream concert experience by employing social representations theory (SRT). We explore the features of paid virtual live-stream concerts based on the C-P-N-D (Content-Platform-Network-Device) framework and the consumers' cognitive and affective perception. To this end, an SRT-based core-periphery analysis was conducted based on 239 responses to the open-ended survey questions. The results show that network-and device-level features of virtual live concerts and participants' overall perception are presented as core elements of paid virtual live-stream concerts, whereas content- and platform-level features are peripheral elements. This finding provides an in-depth understanding of the emergence of paid virtual live-stream concerts as an alternative concert format, thereby providing an invaluable understanding of a virtual live concert experience and theoretical and practical insights.