• Title/Summary/Keyword: Technology-Fusion research

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Isolation of Constitutive Mutant of xylA Gene in Escherichia coli (대장균 xylA 유전자의 구성적 변이주의 분리)

  • Soh, Jae Hyun;Roh, Dong Hyun;Rhee, In Koo
    • Current Research on Agriculture and Life Sciences
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    • v.11
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    • pp.81-89
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    • 1993
  • In order to isolate a mutant which was constitutively expressed in xylA gene, Pxyl-cat-xylA fusion gene was constructed by the insertion of cat gene between xylA promoter and xylA structural gene in pEX13 contained xylA gene. The expression of cat and xylA gene from transformants of xylA mutant DH77 with plasmid pEXC131 containing Pxyl-cat-xylA fusion gene was induced by the addition of 0.4% xylose to media. This results indicated that cat and xylA gene were expressed under control of xylA promoter the presence of xylR gene. We have also isolated constitutive mutant plasmid pEXC131-39 from pEXC131 by trementment with N-methyl-N'-nitro-N-nitrosoguanidine(NTG). cat and xylA gene from pEXC131-39 were constitutively expressed without induction of xylose regardless of xylR gene. Transformants of xylR mutant DH60 with pEXC131-39 also expressed chloramphenicol resistances and xylose isomerase without induction of xylose. This result shows that mutation in region of xylA promoter might make it possible to be constitutively expressed.

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A Study on the Women Image Expressions of Cosmetic Advertisements through the Digital Media

  • Han, Chung-Ah
    • Journal of Fashion Business
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    • v.8 no.3
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    • pp.70-83
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    • 2004
  • The female image has been changed incessantly with age and has been eminently represented in cosmetic advertisement. The female images are changed from the classical images to the active and professional images with the historical current of cyber, digital, and fusion. These changes in the expression of female image are largely due to the spread of post-modernism, feminism, de-construction (Kim, 1994), digital information revolution, and increase of income. The female images in cosmetic advertisement have been expressed very variously with fashion, marketing target, and characteristics of articles. (Im, 1997) The cosmetic advertisements of pure and graceful images were popular in the past. But nowadays individual image, womanly image, and unchanged beautiful image are in vogue. Individual image is very popular in young generation with very short fashion period. Active career woman image represents passion and beauty with extension of women' social roles. Unchanged beautiful image in modern industrial pollution stands for the desire of keeping the beauty in youth. Brand is very important factor to consumers in purchasing. Brand is no larger the simple concept in the past, and accepted as reflection of the image, social status, service, and life-style(Lee, 1998) consumers are very favorable to foreign cosmetics with the increase of overseas travels and import. This phenomenon is considered as very natural, especially in young generation. To create a successful brand image, the harmony of quality, psychological preference, advertisement, and reasonable price are required. According to the questionnaire research implemented by the subject of college women students in five universities in Seoul, the majority of college women students purchase domestic cosmetic brands in cosmetic specialty stores and depend on the tips of acquaintances. Quality, skin-trouble, and brand are considered as special regards for purchasing. Especially, internet shopping in purchasing marks high growth rate and preference for foreign cosmetics is very ardent. It can be expected that the 21st century is the epoch of various small production different from the mass-production in the 20th century. Female image will be probably expressed with individual, emotional, and professional image in the media of digital, fusion, cyber, and technology culture. It can be said that the tendency of cosmetic purchasing in the future will be more focused on brand image and life style.

IoT Enabled Smart Emergency LED Exit Sign controller Design using Arduino

  • Jung, Joonseok;Kwon, Jongman;Mfitumukiza, Joseph;Jung, Soonho;Lee, Minwoo;Cha, Jaesang
    • International journal of advanced smart convergence
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    • v.6 no.1
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    • pp.76-81
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    • 2017
  • This paper presents a low cost and flexible IoT enabled smart LED controller using Arduino that is used for emergency exit signs. The Internet of Things (IoT) is become a global network that put together physical objects using network communications for the purpose of inter-communication of devices, access information on internet, interaction with users as well as permanent connected environment. A crucial point in this paper, is underlined on the potential key points of applying the Arduino platform as low cost, easy to use microcontroller with combination of various sensors applied in IoT technology to facilitate and establishment of intelligent products. To demonstrate the feasibility and effectiveness of the system, devices such as LED strip, combination of various sensors, Arduino, power plug and ZigBee module have been integrated to setup smart emergency exit sign system. The general concept of the proposed system design discussed in this paper is all about the combination of various sensor such as smoke detector sensor, humidity, temperature sensor, glass break sensors as well as camera sensor that are connected to the main controller (Arduino) for the purpose of communicating with LED exit signs displayer and dedicated PC monitors from integrated system monitoring (controller room) through gateway devices using Zig bee module. A critical appraisal of the approach in the area concludes the paper.

Building Control Box Attached Monitor based Color Grid Recognition Methods for User Access Authentication

  • Yoon, Sung Hoon;Lee, Kil Soo;Cha, Jae Sang;Khudaybergenov, Timur;Kim, Min Soo;Woo, Deok Gun;Kim, Jeong Uk
    • International Journal of Internet, Broadcasting and Communication
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    • v.12 no.2
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    • pp.1-7
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    • 2020
  • The secure access the lighting, Heating, ventilation, and air conditioning (HVAC), fire safety, and security control boxes of building facilities is the primary objective of future smart buildings. This paper proposes an authorized user access to the electrical, lighting, fire safety, and security control boxes in the smart building, by using color grid coded optical camera communication (OCC) with face recognition Technologies. The existing CCTV subsystem can be used as the face recognition security subsystem for the proposed approach. At the same time a smart device attached camera can used as an OCC receiver of color grid code for user access authentication data sent by the control boxes to proceed authorization. This proposed approach allows increasing an authorization control reliability and highly secured authentication on accessing building facility infrastructure. The result of color grid code sequence received by the unauthorized person and his face identification allows getting good results in security and gaining effectiveness of accessing building facility infrastructure. The proposed concept uses the encoded user access authentication information through control box monitor and the smart device application which detect and decode the color grid coded informations combinations and then send user through the smart building network to building management system for authentication verification in combination with the facial features that gives a high protection level. The proposed concept is implemented on testbed model and experiment results verified for the secured user authentication in real-time.

Studies on nuclear transplantation in mouse embryos. I. Functional differences between maternal and paternal genomes (생쥐 수정란의 핵이식에 관한 연구 I. 모성 및 부성 genome의 기능차이에 관한 연구)

  • Choe, Sang-yong;Park, Choon-saeng;Lee, Hyo-jong;Park, Hee-sung
    • Korean Journal of Veterinary Research
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    • v.30 no.2
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    • pp.123-127
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    • 1990
  • By nuclear transplantation technology twenty eight mice have been produced after transfer of heterozygous biparental eggs. Also heterozygous gynogenetic eggs with two female pronuclei and heterozygous androgenetic eggs with two male pronuclei have been obtained by injecting a male or female pronucleus with Sendai virus into the perivitelline space of enucleated haploid zygotes at pronuclear stage. The success rate of enucleation, karyoplast injection and fusion of both the pronuclei was 80.3, 83.4 and 81.8%, respectively. The overall pronuclei fusion rates by this technique were 56, 50 and 56% in biparental, gynogenetic and androgenetic eggs, respectively. The evidence was ascertained that the gynogenetic and androgenetic eggs were also able to develop in vitro up to blastocyst stage, even though their developmental potential was greatly diminished beyond 2-cell stage. The gynogenetic eggs were able to develop in vivo up to day 10 of pregnancy, while the androgenetic eggs failed to develop in vivo during the same period.

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Integrated Automatic Pre-Processing for Change Detection Based on SURF Algorithm and Mask Filter (변화탐지를 위한 SURF 알고리즘과 마스크필터 기반 통합 자동 전처리)

  • Kim, Taeheon;Lee, Won Hee;Yeom, Junho;Han, Youkyung
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.37 no.3
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    • pp.209-219
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    • 2019
  • Satellite imagery occurs geometric and radiometric errors due to external environmental factors at the acquired time, which in turn causes false-alarm in change detection. These errors should be eliminated by geometric and radiometric corrections. In this study, we propose a methodology that automatically and simultaneously performs geometric and radiometric corrections by using the SURF (Speeded-Up Robust Feature) algorithm and the mask filter. The MPs (Matching Points), which show invariant properties between multi-temporal imagery, extracted through the SURF algorithm are used for automatic geometric correction. Using the properties of the extracted MPs, PIFs (Pseudo Invariant Features) used for relative radiometric correction are selected. Subsequently, secondary PIFs are extracted by generated mask filters around the selected PIFs. After performing automatic using the extracted MPs, we could confirm that geometric and radiometric errors are eliminated as the result of performing the relative radiometric correction using PIFs in geo-rectified images.

Model Development of Capstone Design for Technological and Humanities Convergence by Using Idea Box (아이디어박스를 활용한 기술인문융합형 캡스톤디자인 모형개발)

  • Kyung, Jong-soo;Choi, Chang-ha
    • Journal of Engineering Education Research
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    • v.21 no.6
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    • pp.35-43
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    • 2018
  • In many universities, the Capstone Design course aims to educate creativity, teamwork and leadership, and ultimately aims to cultivate practitioners with practical ability required in the industry. Since the introduction of capstone design as a regular course, it has spread not only to engineering but also to the humanities and social sciences. A typical capstone design is usually carried out within a limited range of schedules and budgets within the scope of a major and a subject. In the case of a special-purpose capstone design, it is necessary to find out excellent items aiming at start-up and commercialization at an early stage, It contributes to the achievement of international convention participation, start-up and commercialization. The teaching styles of capstone design such as multidisciplinary capstone design, fusion capstone design, and global capstone design are developed and operated in various ways. Depending on each type, objectives, curriculum, scope of participation, operation method, performance and so on. In the case of capstone design, it is contributing to increase the achievements such as participation in international conventions, establishment of business and commercialization by early detection of excellent items aiming at start-up and commercialization, development and establishment of support process. Technological and Humanities Convergence Capstone Design Moel is named as the process of designing a four-level idea called "Idea Factory-based Technology-Humannities Fusion Capstone Design Process", and it is used to generate ideas, elaborate ideas, advanced ideas, and commercialization.

Selective Laser Melting of Metal Matrix Composites: A Review of Materials and Process Design (레이저로 적층 제조한 금속 기지재 복합재료의 설계 및 제조 연구동향)

  • Kim, Min-Kyeom;Kim, Taehwan;Kim, Ju-won;Kim, Dongwon;Fang, Yongjian;No, Jonghwan;Suhr, Jonghwan
    • Composites Research
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    • v.34 no.4
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    • pp.212-225
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    • 2021
  • Metal matrix composites (MMCs) were widely used in various industries, due to the excellent properties: high strength, stiffness, wear resistance, hardness, thermal conductivity, electrical conductivity, etc. With additive manufacturing (AM) technology rapidly developed, AM MMCs have been actively investigated thanks to the cost- and time-saving manufacturing. However, several issues still need to be addressed before fabricating AM MMCs. Here, several types of MMCs were introduced and MMCs' design methods to tackle the issues were suggested in a powder bed fusion (PBF) technique. The paper could come up with a guideline for the material and process design of MMCs in the PBF technique.

A Study on the Architectural Planning of the Function and Circulation in the College of Medicine (의과대학의 기능과 동선에 관한 건축계획 연구)

  • Choi, Kwangseok;Kwon, Soon Jung
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.27 no.2
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    • pp.15-24
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    • 2021
  • Purpose: This study is to present basic data on the Architectural planning of the college of medicine by arranging the functional zoning planning, functional unit planning, and circulation planning, based on the diversification of medical education and the changes of Learning spaces. Methods: This study was conducted by literature review on existing medical education method and learning space planning. And then on-site surveys and questionnaire were conducted on existing facilities. Results: The diversification of medical education has already been progressing for a long time, and the development of information technology is integrated into the learning space, and the evolution of the learning method and the flexibility of the learning space give effect to the change of the learning space. ① This study reconstructed the existing classification method of university facilities into the fuctional zoning method that combines the architectural concept of function and movement. ② The functions and functional units of the college of medicine according to the proposed functional zone were arranged, and the space required for the medical college was suggested. ③ The function and type of movement of medical college can be classified into professor/student fusion type, teaching and research separation type, and learning and learning shared space integrated arrangement type. In the future, it is necessary to consider fusion type or integrated arrangement type rather than separation type. Implications: the evolution of the learning method and the flexibility of the learning space give effect to the change of the learning space.

An Exploratory Study on Developing the AI Essay Test Tool based on ChatGPT: Focusing on the Interaction with the Engineer (ChatGPT를 활용한 AI 글쓰기 의사소통 역량 평가도구 개발 과정에 대한 연구: 기술 전문가와의 상호소통을 중심으로)

  • So-Young Park;ByungYoon Lee;Yujung Hong
    • Journal of Practical Engineering Education
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    • v.16 no.1_spc
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    • pp.21-31
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    • 2024
  • This study focused on the development of an AI essay tool for assessing writing-communication competence using ChatGPT. During the development process, the interaction between content expert and technical expert was emphasized to explore the fusion of IT and humanities and social sciences. Through close communication and interaction between the content and technical experts, they incorporated scoring criteria for writing-communication competence and developed an AI essay test tool that provides scores and feedback in the appropriateness of content, effectiveness of organization, and accuracy of grammar. This process revealed how content and technology combine and presented considerations for future fusion researchers, including technical experts in generative AI assessment tools.