• Title/Summary/Keyword: 공업기반기술개발

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Development of Biochip Sensors for Blood Biomarkers Specific to Alzheimer's Disease Diagnostics (알츠하이머 질병 진단을 위한 혈액 바이오마커 검출용 바이오칩 센서 개발)

  • Kim, Suhee;Lee, Sang Hyuk;Lee, Hye Jin
    • Applied Chemistry for Engineering
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    • v.28 no.4
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    • pp.397-403
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    • 2017
  • The number of patients suffering from Alzheimer's disease is increasing year after year and almost approaching 15% of the total elderly population. Although it is critical to detect the early stage of Alzheimer's disease, which is a serious illness causing cognitive deficits, various existing diagnosis methods such as MRI, PET and CSF analysis could be the burdens for patients due to their high costs and long time to diagnosis. In order to tackle some of challenging issues for such existing diagnosis methods, extensive efforts have been made on developing fast and convenient biochip sensing methodologies for the diagnosis of Alzheimer's disease with a droplet of patient biofluids (e.g., blood). In this mini-review, we highlight some of the latest biochip sensing technologies that could qualitatively and quantitatively analyze blood biomarkers used for Alzheimer's disease diagnostics and discuss briefly related research trends and future aspects.

A Research on the Development of a GIS-based Real-time Urban Water Management System (GIS기반 실시간 도시용수 관리시스템 구현에 관한 연구)

  • Kim, Seong-Hoon;Kim, Eui-Myoung;Lim, Yong-Min
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.11
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    • pp.5290-5299
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    • 2011
  • The ultimate purpose of this research is to propose a method to improve water supply management efficiency. As an effort to solve this comprehensive problem, the purposes of this paper are summarized into the following two main subjects. One is the development of a series of demand forecasting models targeting for each theme of urban water such as residential, commercial, industrial water. The other is the suggestion on the development and utilization plan of a GIS-based information system where the developed models are incorporated. For these, a series of efforts were performed such as evaluating and choosing of the candidate field areas, selecting a proper sensor and an installation point for each theme. Installed are sensors, a wireless communication infrastructure, and a field data acquisition and management server. Developed are a protocol for the wireless communication and a real-time data monitoring system. Nextly, the urban water facility-related and other necessary data were handled to make those into a series of GIS-ready databases. Finally, a GIS-based management system was designed and a blueprint for the implementation is suggested.

Development of Instructional materials using various convex lenses 'VR glasses' for area of Communication technology of the 2015 Revision Curriculum in middle school (2015 개정 중학교 교육과정 통신기술 영역에서 다양한 볼록렌즈를 사용한 'VR 글라스' 수업자료 개발)

  • Hwang, Woo-Jun;Lee, Yong-Jin
    • 대한공업교육학회지
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    • v.43 no.1
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    • pp.94-113
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    • 2018
  • The purpose of this study is to develop a using various convex lenses 'VR glasses' instructional materials for area of communication technology of the 2015 Revision Curriculum in middle school. This study was progressed depend on ADDIE model. In the analysis step, a necessity of developing the instructional materials was confirmed through social needs and leaner's needs and literature researches were reviewed about the 2015 Revision Curriculum and virtual reality and confirmed the area of communication technology related to VR glasses. The communication process of information was selected as a communication technology area related to VR glass. In the design step, Based on the analysis stage, instructional objectives were set and instructional method and medium were selected. In the development step was developed instructional materials, what are teaching-learning guidance, power-point presentations, the paper for group learning activities, Individual portfolio, and using various convex lenses VR glasses example. As a result of 'VR glasses' using various convex lenses, the viewing angle was enlarged when the diameter of the convex lens was large, but it was difficult to quantify it. In the implementation step, the instructional materials developed for middle school students was applied. In the evaluation step, instructional materials were modified and improved through a students evaluation, experts evaluation.

Development of Safety Management Procedures for an Autonomous Navigation Element Technology Test (선박 자율운항 요소기술 시험을 위한 안전관리절차서 개발)

  • Woo, Donghan;Lee, In-Gyu;Im, Namkyun
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.27 no.5
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    • pp.566-573
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    • 2021
  • In this study, safety management procedures were developed based on domestic and foreign guidelines and related maritime law to ensure the safe development and implementation of smart autonomous ship technology and Samsung Heavy Industry. The safety management procedure was developed according to the guidelines for (MASS) sea trials (MSC.1/Circ.1604, Annex: Interim guidelines for MASS trials), proposed by International Maritime Organization (IMO) for the relevant authorities and stakeholders of MASS to properly conduct tests of systems and infrastructure related to safety and environmental protection. The developed safety management procedure applies to the maritime demonstration test of a system applying autonomous navigation element technology mounted as a navigation aid on a ship operating under a watch system, while complying with the environmental protection and navigation safety of the coast of Korea.

Nanocellulose-based Polymer Composites with Their Properties and Applications (나노셀룰로오스 기반 고분자 복합소재의 특성 및 응용)

  • Se Hun Kim;Young Jae Kwon;Yamini Sharma;MinYoung Shon;Sangho Cho;Kyung-Youl Baek;Kie Yong Cho
    • Applied Chemistry for Engineering
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    • v.34 no.3
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    • pp.221-225
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    • 2023
  • Celluloses are naturally occurring polymers that can be easily obtained from various natural sources. Nanocellulose, a form of cellulose, can be derived from regular cellulose and has unique properties that make it ideal for multiple industrial applications. Nanocellulose is a renewable, sustainable, and eco-friendly composite material with exceptional mechanical properties and thermal stability, surpassing metal and ceramic composites. As a result, nanocelluloses are being extensively studied for their potential applications, including fillers, packaging, energy, medicine, and coatings. This review aims to summarize the current research on nanocelluloses and their applications.

Electrochemical Ion Separation Technology for Carbon Neutrality (탄소중립을 지향하는 전기화학적 이온 분리(EIONS) 기술)

  • Hwajoo Joo;Jaewuk Ahn;Sung-il Jeon;Jeyong Yoon
    • Applied Chemistry for Engineering
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    • v.34 no.4
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    • pp.331-346
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    • 2023
  • Recently, green processes that can be directly used in an energy-efficient and electrified society to achieve carbon neutrality are attracting attention. Existing heat and pressure-based desalination technologies that consume tremendous amounts of energy are no exception, and the growth of next-generation electrochemical-based desalination technologies is remarkable. One of the most representative electrochemical desalination technologies is electrochemical ion separation (EIONS) technology, which includes capacitive desalination (CDI) and battery desalination (BD) technology. In the research field of EIONS, various system applications have been developed to improve system performance, such as capacity and cyclability. However, it is very difficult to understand the meaning and novelty of these applications immediately because there are only a few papers that summarize the research background for domestic readers. Therefore, in this review paper, we aim to describe the technological advances and individual characteristics of each system in clear and specific detail about the latest EIONS research. The driving principle, research background, and strengths and weaknesses of each EIONS system are explained in order. In addition, this paper concluded by suggesting the future development and research direction of EIONS. Researchers who are just beginning out in EIONS research can also benefit from this study because it will help them understand the research trend.

Patent Analysis of Oil Sands Bitumen Upgrading Technologies (오일샌드 역청 개질 기술의 특허정보 분석)

  • Lee, Ki Bong;Jeon, Sang Goo;Nho, Nam Sun;Kim, Kwang Ho;Shin, Dae Hyun;Kim, Seon Wook;Kim, Yong Heon
    • Applied Chemistry for Engineering
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    • v.19 no.6
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    • pp.592-599
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    • 2008
  • Oil sands had not received enough attention due to high production cost. However, as oil price significantly increases, oil sands are receiving more and more interest as unconventional crude oil. The value and applicability of oil sands can be enhanced by upgrading oil sands bitumen to produce synthetic crude oil (SCO). This study analyzed 213 oil sands upgrading patents applied between 1969 and 2006 in US, Canada, Japan, Europe, and Korea. The upgrading technologies could be classified into 9 detailed technologies; hydrocracking, coking, thermal cracking, deasphalting, supercritical technology, bio-technology, hydrotreating, gasification, and others. The number of patents applied for oil sands upgrading increased after 1970, reached a maximum in the early 1980, and slowly increases again in recent years. Korea has a lack of technologies for oil sands. Therefore, the technologies for oil sands production and application, specially, upgrading technologies based on accumulated oil refinery technologies need to be developed to increase self-development ratio of energy resource.

Development of water cycle model based on historical data for drought monitoring (수문학적 가뭄 모니터링을 위한 실적자료 기반 물순환 모델 개발)

  • Kim, Jang Gyeong;Kim, Jin-Young;Nam, Woo-Seong;Jeon, Geun-Il;Kwon, Hyun-Han
    • Proceedings of the Korea Water Resources Association Conference
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    • 2020.06a
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    • pp.37-37
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    • 2020
  • 일반적으로 생활용수 및 공업용수의 경우 대부분 주수원으로 댐 및 저수지 등을 통해 용수공급이 이루어지며, 일부 지역에서는 하천에서 직접 취수가 이루어지고 있다. 그러나 하천을 수원으로 사용하고 있는 대부분의 지점에서는 계측이 이루어지고 있지 않아 정확한 양을 파악하기 어려운 실정이다. 이러한 현상이 지속 될 경우, 하천 관리를 위한 정확한 가용수량 파악을 통한 수자원 계획 수립 및 수문학적 가뭄정보 생산시 어려움이 수반된다. 수문학적 가뭄 정보를 보다 정확하게 제공하기 위해서는 유역 내 물순환체계 구축, 수문기상 빅데이터 활용, 정확한 유역유출모델링 등 다양한 요소들이 통합적으로 연계되는 것이 무엇보다도 중요하다. 더불어 유역 내 전반적인 물수급 체계를 조사 및 분석하고, 이를 기반으로 모델을 구축하는 것이 선결되어야 할 것으로 판단된다. 이러한 점에서 본 연구에서는 실적기반 가뭄 모니터링을 위한 시공간적으로 상세화 된 물순환 모형을 개발하는데 목적이 있으며, 이를 통해 준실시간으로 하천을 중심으로 가뭄 모니터링이 필요한 지점에 유량을 제공할 수 있는 체계를 개발하고자 한다. 즉, 가뭄에 대해 선제적으로 대응하기 위해서 모니터링 현황, 분석 및 전망 그리고 가뭄 발생지역을 보다 신뢰성 있게 판단하기 위한 가뭄정보 기술정보 제공이 가능한 모형이라 할 수 있다. 이를 통해 궁극적으로 댐, 저수지, 하천 등 다양한 수원을 가지는 유역 내 가용수자원량을 보다 정확하게 판단하여, 다양한 수자원 계획 수립시 기초자료로 활용 될 수 있을 것으로 기대된다.

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Development Trend of Biosensors for Antimicrobial Drugs in Water Environment (물 환경 내 항생제 약물 분석을 위한 바이오센서 개발 연구 동향)

  • Goh, Eunseo;Lee, Hye Jin
    • Applied Chemistry for Engineering
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    • v.27 no.6
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    • pp.565-572
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    • 2016
  • While there have been great demands on improving domestic water pollution issues, the necessity for real time monitoring of particular drug residues in water resources has been raised since drug residues including antibiotics could provoke new trains of drug-resistant bacteria in water environments. Among many different types of drugs used for pharmaceutical treatment, antibiotics are considered to be one of the most hazardous to our ecosystem since they can rapidly promote the spreading of drug-resistant bacteria in water environments. In this mini-review, we will highlight recent developments made on creating in-situ sensing platforms for the fast monitoring of antibiotic residues in aquatic environmental samples focusing on optical and electrochemical techniques. Related recent technology developments and the resulting economy effects will also be discussed.

Brief Review on the Processes for RNA-Platform Vaccine Production (RNA 플랫폼 백신 제조공정 고찰 연구)

  • Roh, Hyungmin;Oh, Kyeongseok
    • Journal of the Korea Convergence Society
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    • v.12 no.8
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    • pp.179-186
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    • 2021
  • Among the Covid-19 vaccine platforms, mRNA-platform vaccines are summarized qualitatively in this paper. Manufacturing mRNA vaccines consist of serial processes; the preparation process of DNA template, the transcription of mRNA, nanoemulsion process, and the fill and finish unit combined with formulation stages. It is noticeable that major players are collaborated for producing mRNA vaccines. In particular, the nanoemulsion process is recognized to the key process requiring formulated lipid materials to protect modified mRNA until they arrive in intracellular cytosol. It is known that the nanoemulsion process adapts well-designed microfluidic devices. We expect that the nanoemulsion process will stimulate pharmaceutical industries to develop diverse applications.