• The Korean Journal of Physiology and Pharmacology
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• v.27 no.4
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• pp.289-298
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• 2023

Complex diseases including cardiovascular disease are caused by a combination of the alternation of many genes and the influence of environments. Recently, non-coding RNAs (ncRNAs) have been shown to be involved in diverse diseases, and the functions of various ncRNAs have been reported. Many researchers have elucidated the mechanisms of action of these ncRNAs at the cellular level prior to in vivo and clinical studies of the diseases. Due to the characteristics of complex diseases involving intercellular crosstalk, it is important to study communication between multiple cells. However, there is a lack of literature summarizing and discussing studies of ncRNAs involved in intercellular crosstalk in cardiovascular diseases. Therefore, this review summarizes recent discoveries in the functional mechanisms of intercellular crosstalk involving ncRNAs, including microRNAs, long non-coding RNAs, and circular RNAs. In addition, the pathophysiological role of ncRNAs in this communication is extensively discussed in various cardiovascular diseases.

• Annual Conference of KIPS
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• 2008.11a
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• pp.662-664
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• 2008

위치기반 검색, 광고, SNS, 지도 등 사용자의 위치에 기반한 다양한 서비스들이 모바일 디바이스 사용자에게 제공되어 지고 있다. 그러나 이러한 서비스들은 대부분 현재시점의 사용자의 위치 정보를 기반으로 하고 있어, 제공 가능한 서비스 영역이 제한되어 있다. "Where" 뿐만이 아니라, "When-Where-What" 을 안다면 이러한 제한을 극복하고 사용자에게 보다 편리하고 유용성 있는 정보와 서비스 제공이 가능할 것이다. 본 연구에서는 모바일 디바이스에서 생성 가능한 사용자의 라이프 로그를 효율적으로 수집하고, 수집된 로그를 분석하여 사용자의 행동 예측 데이터를 제공하는 시스템을 제안하였다. 제안 시스템은 라이프로그에 기반한 사용자의 행동 예측을 가능하게 하여, 이를 통한 다양한 응용서비스 제공을 지원한다.

• Journal of The Korean Association For Science Education
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• v.27 no.2
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• pp.126-133
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• 2007

The 'Science and Technology Mania' award program is an annual nationwide award activity organized to provide teenagers with opportunities for engaging in a high-technology-based long-term project work. The task involves designing a model ship propelled by the Lorentz force (a Lorentz ship) that allows diverse approaches irreducible to one right answer, and thus adopts features of science and technology in-the-making, In this study, we attend to opportunities for learning science that the uncertain aspects of artifact-designing project provide with participants, particularly when students communicate with scientists about their design practices. We analyze oral presentation sessions of the program and articulate two findings. First, students articulate embodied knowing in the presence of scientists. Second, students enact discursive resources deployed in concrete action. We conclude that students' design practices constitute referent that communication is directed toward and therefore become resources for developing scientific discourse.

• International Journal of Internet, Broadcasting and Communication
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• v.16 no.3
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• pp.113-120
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• 2024

Recently, case presentations using AI functions such as ChatGPT are increasing in many industrial fields. As AI-based results emerge even in the areas of images and videos, traditional animation production tools are in need of significant changes. Unreal Engine is the tool that adapts most quickly to these changes, proposing a new animation production workflow by integrating tools such as Metahuman and Marvelous Designer. Working with realistic metahumans allows for the production of realistic and natural movements, such as those captured through motion capture data. Implementing this approach presents many challenges for production tools that adhere to traditional methods. In this study, we investigated the differences between the cell animation workflow and the computer graphics animation production workflow. We compared and analyzed whether these differences could be reduced by creating sample movements using character rigs in Maya and Cascadeur tools. Our results showed that a similar cell animation workflow could be constructed using the Cascadeur tool. To improve the accuracy of our conclusions, we created large, action-packed short animations to demonstrate and validate our findings.

• Journal of Internet of Things and Convergence
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• v.6 no.1
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• pp.65-72
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• 2020

The purpose of this study was to examine the effect on improving communication by conducting a tea culture convergence program for elderly people using facilities. The subjects of this study consisted of a tea culture convergence program for 3 months, 60 minutes once a week for 7 people using the Elderly Day Care Center in the H-S S welfare center. Psychological and behavioral changes related to communication by sessions were compared by comparing elderly patients at each session of the Tea Culture Convergence Program.Tea culture convergence program was found to have a positive effect on behaviors and attitudes related to communication among the elderly in the facilities. As a result of analyzing pre- and post-action and attitudes, the Tea Culture Convergence Program brought positive changes in communication by acting as emotional and social support for the elderly. These findings suggest that the Tea Culture Convergence Program is a psychologically necessary program for the elderly in that it shows that the Tea Culture Convergence Program is an effective program that promotes communication among the elderly in the facilities.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.24 no.6
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• pp.751-758
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• 2020

As the application fields using various types of communication, including the Internet of Things, have emerged, the form of communication has been diversified. Some applications require fast feedback and the others continue to send data regardless of whether it is received or not. Transmitting data in one way can be acknowledged by the opposite direction response. These information exchanges form a two-way communication. For applications that need to issue commands remotely, such as network control systems, it is important to give a fast response because the sender decides the next action based on the response from the recipient. In this paper, we propose the base station (BS) cooperation to improve the latency performance of the two-way communication in cellular networks. We design the two-way communication strategy utilizing cooperating BSs with the same direction of traffic as well as bidirectional traffic. We show that the proposed scheme improves the latency performance than the previous works.

• Journal of The Korean Association of Information Education
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• v.4 no.2
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• pp.159-168
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• 2001

A ultimate purpose of education is to develop their ability that learners is able to solve present or future immediate problem well. In order to, the educator checks question settlement conditions and leads steadily, the learner needs various data and information for question settlement, and needs communication with many various people. By the way, WEB becomes the source of various data and information that it is naccesary to solve problem for freedom navigation of internet, because accelerates interaction quality communication needed question settlement process, offers the best studying environment for problem solution drilling. A methodolagical tactics for accelerating learner's question solution activity is helped by small-group action drill. According to, this treatise develops system of question solution drilling with web for a basis by small group action drill, applies the fifth grade it experimentally.

• The Journal of the Korea institute of electronic communication sciences
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• v.10 no.11
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• pp.1205-1216
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• 2015

Since concentration of greenhouse gas increases continuously from human's fossil fuel use, urbanization, and cultivation, it is trend that climate change is appearing. In Addition, in 20th century, occurrence of disaster is accidental and huge, and damage level also increases gradually. Therefore, in order to preserve the territory and to protect people's life and property against new type disasters, disaster detection satellite (payloads) development is required urgently. In this paper, we conduct a research and development for the prompt preemptive action when occurred a disaster, in particularly, about the disaster observation optimized at Korea's geographical features for the irregular future disasters. For the payload design which is specialized detect disasters, we create a tech tree of satellite imagery applications based 10 disaster types, and analyze the satellite sensor technologies referred to Landsat-8, Worldview-3 and ALOS-2.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.23 no.4
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• pp.107-113
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• 2023

This paper proposes a method for detecting smoking behavior in images using artificial intelligence technology. Since smoking is not a static phenomenon but an action, the object detection technology was combined with the posture estimation technology that can detect the action. A smoker detection learning model was developed to detect smokers in images, and the characteristics of smoking behaviors were applied to posture estimation technology to detect smoking behaviors in images. YOLOv8 was used for object detection, and OpenPose was used for posture estimation. In addition, when smokers and non-smokers are included in the image, a method of separating only people was applied. The proposed method was implemented using Google Colab NVIDEA Tesla T4 GPU in Python, and it was found that the smoking behavior was perfectly detected in the given video as a result of the test.

• International Journal of Internet, Broadcasting and Communication
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• v.15 no.2
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• pp.89-101
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• 2023

The purpose of this study is to empirically analyze the rational decision-making process and perception differences of housing transactions in the market environment. It was designed through an analysis of the factors influencing housing sales based on the rational behavior theory model. Objective evidence was provided for the impact factors affecting the attitude towards housing sales, with the spouse and children being identified as significant influencers. Additionally, children and friends were found to have an impact on subjective norms related to housing sales, especially for unmarried individuals under 40 years of age and those with low income, who were found to be more influenced by their parents. It was also discovered that the influence of these factors varied based on age and income levels. Younger individuals tended to rely more on their parents or friends, while those with high incomes showed stronger willingness to purchase homes. The presence of beneficial infrastructure for children was found to directly influence the decision to purchase a home. The study also provided objective evidence that the decision to purchase a home is influenced not only by economic factors but also by continuous encouragement and information from those around the buyer. These findings demonstrate the importance of the influence of close acquaintances in the rational decision-making process of home buyers. However, this study only investigated a limited portion of the factors influencing housing sales, as the market is affected by a variety of financial and governmental policies. Therefore, future research should consider various complex factors simultaneously when analyzing the influence of housing sales.