• Title/Summary/Keyword: drawing development

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Development of wearable device with smart key function and convergence of personal bio-certification and technology using ECG signal (심전도 신호를 이용한 개인 바이오인증 기술 융합과 smart key 기능이 탑재된 wearable device 개발)

  • Bang, Gul-Won
    • Journal of Digital Convergence
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    • v.20 no.5
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    • pp.637-642
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    • 2022
  • Self-authentication technology using electrocardiogram (ECG) signals is drawing attention as a self-authentication technology that can replace existing bio-authentication. A device that recognizes a digital electronic key can be mounted on a vehicle to wirelessly exchange data with a car, and a function that can lock or unlock a car door or start a car by using a smartphone can be controlled through a smartphone. However, smart keys are vulnerable to security, so smart keys applied with bio-authentication technology were studied to solve this problem and provide driver convenience. A personal authentication algorithm using electrocardiogram was mounted on a watch-type wearable device to authenticate bio, and when personal authentication was completed, it could function as a smart key of a car. The certification rate was 95 per cent achieved. Drivers do not need to have a smart key, and they propose a smart key as an alternative that can safely protect it from loss and hacking. Smart keys using personal authentication technology using electrocardiogram can be applied to various fields through personal authentication and will study methods that can be applied to identification devices using electrocardiogram in the future.

Implication of microRNA as a potential biomarker of myocarditis

  • Oh, Jin-Hee;Kim, Gi Beom;Seok, Heeyoung
    • Clinical and Experimental Pediatrics
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    • v.65 no.5
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    • pp.230-238
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    • 2022
  • Myocarditis was previously attributed to an epidemic viral infection. Additional harmful reagents, in addition to viruses, play a role in its etiology. Coronavirus disease 2019 (COVID-19) vaccine-induced myocarditis has recently been described, drawing attention to vaccine-induced myocarditis in children and adolescents. Its pathology is based on a series of complex immune responses, including initial innate immune responses in response to viral entry, adaptive immune responses leading to the development of antigen-specific antibodies, and autoimmune responses to cellular injury caused by cardiomyocyte rupture that releases antigens. Chronic inflammation and fibrosis in the myocardium eventually result in cardiac failure. Recent advancements in molecular biology have remarkably increased our understanding of myocarditis. In particular, microRNAs (miRNAs) are a hot topic in terms of the role of new biomarkers and the pathophysiology of myocarditis. Myocarditis has been linked with microRNA-221/222 (miR-221/222), miR-155, miR-10a*, and miR-590. Despite the lack of clinical trials of miRNA intervention in myocarditis yet, multiple clinical trials of miRNAs in other cardiac diseases have been aggressively conducted to help pave the way for future research, which is bolstered by the success of recently U.S. Food and Drug Administration-approved small-RNA medications. This review presents basic information and recent research that focuses on myocarditis and related miRNAs as a potential novel biomarker and the therapeutics.

The Effect of ESG Ratings on the Value of Chinese Listed Companies (ESG 영역별 평가등급이 중국 상장기업 가치에 미치는 영향)

  • Dong, Meng;Baek, Kang
    • Asia-Pacific Journal of Business
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    • v.13 no.1
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    • pp.153-166
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    • 2022
  • Purpose - ESG(Environmental, Social and Governance) rating is an indicator to predict the sustainable development and long-term value creation of enterprises, which is becoming more and more important. This study divided the ESG rating into each sector(E, S and G) to identify which ESG elements are effective in enhancing enterprise value according to the characteristics of the enterprise, which is different from previous studies. Design/methodology/approach - In this study, Bloomberg ESG Disclosure Score was used to empirically analyze the relationship between ESG ratings and corporate value by taking the listed companies of China's Shanghai Composite Index from 2017 to 2020 as the object. Findings - First, the relationship between ESG ratings and enterprise value shows a statistically significant positive correlation, which supports the results of previous studies. Second, the analysis results from the classification of ownership structure of enterprises (state-owned enterprises and non-state-owned enterprises) show that compared with state-owned enterprises, the ESG ratings of non-state-owned enterprises is more closely related to enterprise value. Third, the analysis of various industries (manufacturing and non-manufacturing) shows that compared with manufacturing, ESG scores of non-manufacturing has a more positive effect on enterprise value. Lastly, the analysis by industry type (heavy-contaminated companies, non-contaminated companies) confirmed that ESG scores of non-contaminated companies has a positive effect on corporate value than heavy-contaminated companies. Research implications or Originality - This study classified ESG evaluation grades(E, S and G) for listed companies in China and analyzed in detail how they affect corporate value according to corporate characteristics, drawing implications for what ESG indicators should be focused on to increase corporate value.

Development and Validation of Data Science Education Instructional Model (데이터 과학 교육을 위한 수업모형 개발 및 타당성 검증)

  • Bongchul Kim;Bomsol Kim;Jonghoon Kim
    • Journal of The Korean Association of Information Education
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    • v.26 no.5
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    • pp.417-425
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    • 2022
  • The 'Comprehensive Plan for Nurturing Digital Talents' reported at the Cabinet meeting of the Ministry of Education in August 2022 focuses on qualitative and quantitative expansion of informatics education centered on SW, AI education. With the advent of the era of artificial intelligence, data science education is also drawing attention as a field of informatics education. Data science is originally a field where various studies are fused, and advanced technologies are being used for data analysis, modeling, and machine learning. This study devised a draft of the instructional model of data science education through literature research and analysis of previous studies, and developed a final instructional model through usability test and expert validation.

Development of Low Carbon Hydrogen Production Technology Evaluation Model Using Delphi-AHP Method (Delphi-AHP 방법을 이용한 저탄소수소 생산 기술 가치평가 모델 개발)

  • HO SEOK WHANG;UISIK KIM;YOUNGSHIN JANG;JUNGHWAN KIM;KWANG JUN KIM
    • Journal of Hydrogen and New Energy
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    • v.34 no.2
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    • pp.113-121
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    • 2023
  • Recently, low hydrogen carbon production technology is drawing interest due to lower production costs. Although the pace of research in this field has been accelerating, there is no well-established criteria for evaluation. The most of current evaluation methods needs information related to technology. However the technology is not enough to provide effective evaluation criteria because the technology is not fully developed. In this study, we propose an integrated Delphi-analytic hierarchy process (AHP) method and low carbon hydrogen production technology evaluation model. Experts opinion is used to provide evaluation criteria for the technology. In this study, integrated Delphi-AHP method are utilized for determining factors and calculating their numerical importance based on experts opinion. Then, sensitivity analysis is performed to verify the robustness of the analysis and scenarios of potential changes. As many as 11 factors are identified by Delphi method. Then, numerical importance of the factors are calculated by AHP. Sensitivity analysis is performed. It shows that intellectual property right (IPR) is always more important than other factors. This study proposes the numerical standard for the low carbon hydrogen production technology evaluation. The proposed model can be used for technology evaluation or commercialization.

AN AUTOMATED FORMWORK MODELING SYSTEM DEVELOPMENT FOR QUANTITY TAKE-OFF BASED ON BIM

  • Seong-Ah Kim;Sangyoon Chin;Su-Won Yoon;Tae-Hong Shin;Yea-Sang Kim;Cheolho Choi
    • International conference on construction engineering and project management
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    • 2009.05a
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    • pp.1113-1116
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    • 2009
  • The attempt to use a 3D model each field such as design, structure, construction, facilities, and estimation in the construction project has recently increased more and more while BIM (Building Information Modeling) that manages the process of generating and managing building data has risen during life cycle of a construction project. While the 2D Drawing based work of each field is achieved in the already existing construction project, the BIM based construction project aims at accomplishing 3D model based work of each field efficiently. Accordingly, the solution that fits 3D model based work of each field and supports plans in order to efficiently accomplish the relevant work is demanded. The estimation, one of the fields of the construction project, has applied BIM to calculate quantity and cost of the building materials used to construction works after taking off building quantity information from the 3D model by a item for a Quantity Take-off grouping the materials relevant to a 3D object. A 3D based estimation program has been commonly used in abroad advanced countries using BIM. The program can only calculate quantity related to one 3D object. In other words, it doesn't support the take-off process considering quantity of a contiguous object. In case of temporary materials used in the frame construction, there are instances where quantity is different by the contiguous object. For example, the formwork of the temporary materials quantity is changed by dimensions of the contiguous object because formwork of temporary materials goes through the quantity take-off process that deduces quantity of the connected object when different objects are connected. A worker can compulsorily adjust quantity so as to recognize the different object connected to the contiguous object and deduces quantity, but it mainly causes the confusion of work because it must complexly consider quantity of other materials related to the object besides. Therefore, this study is to propose the solution that automates the formwork 3D modeling to efficiently accomplish the quantity take-off of formwork by preventing the confusion of the work which is caused by the quantity deduction process between the contiguous object and the connected object.

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The development of a textile design targeting Chinese consumers from Generation MZ (중국 MZ세대 소비자를 겨냥한 텍스타일 디자인 개발에 관한 연구)

  • Xinyue Qi;Chil Soon Kim;Chai Young Lee
    • The Research Journal of the Costume Culture
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    • v.31 no.4
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    • pp.558-571
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    • 2023
  • In recent years, young Chinese consumers have become more favorably inclined toward products relating to traditional culture. Therefore, this study aimed to develop a textile design that incorporates traditional Chinese patterns and cultural symbolism that will appeal to consumers from the MZ generation (millennials and Generation Z). Through a literature search for traditional Chinese patterns and symbols regarded as auspicious, our design concept and motives were established. We selected peony, lotus, and frog motifs as representative of a "wealth and eternal prosperity" design theme. In textile design work 1, we used hand drawing and watercolor techniques, color transformation with Adobe Photoshop, and colorway and end-use 3D simulation with TexPro. The 3D simulation work suggests that this textile pattern is suitable for women's outerwear, mufflers, and tote bags. Textile design work 2 conveyed the 'wealth and eternal prosperity' design theme and had a graceful mood that embodied the nobility of the lotus flower whilst also encompassing the symbolism of money and status. The end design is a modern reinterpretation of traditional Chinese patterns and motifs. As such, it is hoped that it will satisfy the needs of young consumers for cultural values yet offer a unique new aesthetic distinct from existing textile designs. These qualities can be expected to enhance the competitive market value of textiles bearing this design.

Method to Use the Augmented Reality for Construction Planning and Management

  • Nam, Keong-Woo;Kang, Chulung;Jang, Myunghoun
    • International conference on construction engineering and project management
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    • 2022.06a
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    • pp.1067-1074
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    • 2022
  • An architect creates his/her design to meet owner's requirements. Floor plans, perspective drawings, and scale models are used in order for the owner to choose the design. The tools are a little helpful for communication between the architect and the owner in case the owner does not know architecture. The scale models are good, but it is hard to make scale models while design is in progress. 3D CAD is a good tool for communication, but it is time-consuming and requires high-performance computer hardware. Augmented reality is able to show 3D virtual models that are updated by the architect with smart devices such as a smart phone and a tablet PC. The owner frequently reviews the updated design anytime anywhere. This study proposes a method to use augmented reality for architectural design and construction management. The method supports the communication between the owner, the architect and the contractor to review updated designs, and to complete the building project. 3D models expressed in augmented reality are created using SketchUp with 2D drawings for building construction. An Android application implementing augmented reality is developed by Qualcomm Vuforia and Unity on smart devices. Drawings as markers and 3D models are connected in Unity. And functions that temporarily hide unnecessary parts can be implemented in C# programming language. If an owner, an architect, or a contractor looks at a smart phone on a 2D drawing, he/she can identify building elements such as 3D buildings or columns on a screen. This can help communication between them.

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Art Make-up Design Using Characteristics of Psychedelic Works (사이키델릭 작품의 특성을 활용한 아트 메이크업 디자인)

  • Choi, Su-Jin;Park, Li-La;Kang, Eun-Ju
    • Journal of Convergence for Information Technology
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    • v.12 no.2
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    • pp.206-212
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    • 2022
  • This study suggests art makeup design by utilizing the characteristics of psychedelic works. The study analyzed the concept of being psychedelic and art makeup based on precedent studies and publications, and classified the psychedelic characteristics as being those of mysterious, optical illusions, and playfulness. After selecting the work featuring the characteristics of being psychedelic, six works were created with this motif, by integrating the airbrush, the pictorial, and the object techniques of the art makeup expression techniques. As a result, it was demonstrated that the design that has utilized the characteristics of psychedelic works could be applicable to art makeup. Next, the confluence of art works and art makeup can serve as an approach to drawing creative designs. Thus, this study suggests a direction for extending the creativity and variety of art makeup design, and a continued development for art makeup design by further confluences with various areas is expected

Development of Knee Weight-bearing Radiography Assist Device (무릎 체중부하 촬영 보조장치 개발)

  • Yon-Lae Kim;Young-Woo Yoon
    • Journal of radiological science and technology
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    • v.46 no.5
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    • pp.395-399
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    • 2023
  • The knee arthritis patients are generally performed standing position radiography. However, patients with pain caused by degenerative diseases or injuries in the knee have difficulty maintaining a standing position. Therefore, this study aims to develop a knee joint standing weight bearing projection assist device to solve these problems when patients undergo knee radiography due to various diseases. The design of the knee joint weight-bearing radiography assist device is carried out with 3D design and drawing production to secure basic data, electric support and frame manufacture. A fixed device for maintaining the patient's knee standing weight-bearing projection, an electric digital height device, a digital protractor, and a safety device were designed. The arm support is made of PVC with a cushion to relieve the impact and make it easier to remove debris. The digital electric device can be moved up and down according to the patient's height, and a remote control is attached. The safety device is made to be adjustable in size by attaching metal hooks on both sides of the frame and to shield the scrotum. A digital protractor was attached to the side frame to set the desired knee angle. When a self-made assist device was used to perform a knee joint standing weight bearing projection, it helped maintain arm support and lower extremities position. In addition, the height could be adjusted using an assist device during standing projections, which helped the patient maintain the position.