• 제목/요약/키워드: Developments

검색결과 3,789건 처리시간 0.037초

GIS Indicator on New Urbanist Communities in Southeastern US

  • Sim, Sunhui
    • 대한공간정보학회지
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    • 제24권2호
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    • pp.89-94
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    • 2016
  • New urbanism is a school of urban development that combines residential, commercial, and civic land uses in a dense urban fabric of carefully prescribed form. Its advocates claim that New Urbanist developments are superior to prevailing urban development patterns on social and environmental sustainability. Its critics, however, argue that New Urbanism developments do not measure up to the social and environmental ideals and are, in some cases, just another form of urban sprawl. The goal of this study is to evaluate various criticisms of New Urbanist communities. This paper used empirical evidence to determine the performance of New Urbanist developments on the broader spatial and social context as opposed to the internal characteristics of the communities using GIS indicators. The results showed that the communities did not meet conventional criteria for New Urbanist ideals.

불연속변위해석법의 기본이론 및 개발현황 (Basic Theory and Developments of Discontinous Deformation Analysis Method)

  • 김용일
    • 자연, 터널 그리고 지하공간
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    • 제1권2호
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    • pp.50-58
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    • 1999
  • 불연속 변위해석법 (DDA Method)는 개별요소법의 일종으로 최근에 개발된 새로운 해석법이다. Shi(1998)는 그의 박사학위 논문에서 DDA Method를 최초로 제안하였다. 또한 이 방법에 기초한 전산 프로그램이 개발되었으며 몇 가지 적용 예들이 그의 박사학위 논문 및 여러 가지 학술논문집에 발표되었다. 지난 11년간 (1988 - 1999) 암반공학 분야에서 DDA방법의 개발 및 적용에 많은 발전이 있었다. 본 논문에서는 DDA방법의 기본이론 및 개발현황을 제시하였으며, 지반공학 분야에 있어서의 DDA방법의 적용내용을 정리하였다.

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APPLICATIONS OF SOI DEVICE TECHNOLOGY

  • Ryoo, Kunkul
    • 한국표면공학회지
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    • 제29권5호
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    • pp.482-486
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    • 1996
  • The progress of microelectronics technology has been requiring agressive developments of device technologies. Also the requirements of the next generation devices is heading to the limits of their functions and materials, and hence asking the very specific silicon wafer such as SOI(Silicon On Insulator) wafer. The talk covers the dome stic and world-wide status of SOI device developments and applications. The presentation will also touch some predictions such as SOI device prgress schedules, impacts on the normal wafer developments, market sizes, SOI wafer prices, and so on. Finally it will cover technical aspects which are silicon oxide conditions for bonding, point defects and, surface contaminations. These points will be hopefully overcome by involved people in microelectronics industry.

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건축설계과정에서 BIM 및 3차원 모델러 사용에 따른 아이디어 발상효과에 관한 비교연구 (A Comparative Study on the Effects of BIM and Conventional 3D Modeler on the Idea Generation in Architectural Design Process)

  • 홍승완;이윤길
    • 한국멀티미디어학회논문지
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    • 제17권5호
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    • pp.623-630
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    • 2014
  • While BIM software becomes popular for CAAD and architectural design educations, the affordance of BIM for students' architectural idea developments, called intra-process of communication, is still unknown. Therefore, this study conducted t-test quantitative analysis in order to the scores for feedback, idea productivity, idea development for architectural elements(form, interior space, material, and details), and creative motivation(novelty, appropriateness) using BIM and non-BIM 3D modeler. To achieve the goal, in authentic CAAD class, architecture major students proposed two office designs using those two tools, then they evaluated in which ways those tools influenced their idea developments.

Magnetic Resonance Imaging: Historical Overview, Technical Developments, and Clinical Applications

  • Jahng, Geon-Ho;Park, Soonchan;Ryu, Chang-Woo;Cho, Zang-Hee
    • 한국의학물리학회지:의학물리
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    • 제31권3호
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    • pp.35-53
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    • 2020
  • The authors congratulate the cerebrations for the 30 years of the Korean Society of Medical Physics (http://www.ksmp.or.kr/). The paper is published to recognize the anniversary. Geon-Ho Jahng invited Professor Z. H. Cho to join to submit this manuscript because he has been one of the leaders in the field of magnetic resonance imaging (MRI) during the last 40 years. In this review, we describe the development and clinical histories of MRI internationally and domestically. We also discuss diffusion and perfusion MRI, molecular imaging using MRI and MR spectroscopy (MRS), and the hybrid systems, such as positron emission tomography-MRI (PET-MRI), MR-guided focused ultrasound surgery (MRgFUS), and MRI-guided linear accelerators (MRI-LINACs). In each part, we discuss the historical evolution of the developments, technical developments, and clinical applications.

대마씨 발효 추출물의 생리 활성 및 미백 활성 검증 (Verification of Biological Activities and Tyrosinase Inhibition of Ethanol Extracts from Hemp Seed (Cannabis sativa L.) Fermented with Lactic Acid Bacteria)

  • 윤여초;김병혁;김중규;이준형;박예은;권기석;황학수;이중복
    • 생명과학회지
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    • 제28권6호
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    • pp.688-696
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    • 2018
  • 대마씨(Hemp seed; seed of Cannabis sativa L.)는 삼과에 속하는 1년생 초본 식물이며, 면역력 증가, 동맥 경화증, 변비, 고지혈증 예방, 항염증제, 항암제 등 다양한 생물학적 기능을 수행하는 것으로 보고되었다. 본 연구에서는 유산균을 이용한 발효 대마씨 추출물의 효능를 조사하였다. 그 결과, Staphylococcus aureus에 대한 항균 활성은 발효하지 않은 대마씨 추출물에 비해 현저히 증가되었으며, 특히 Bacillus cereus에 대하여 발효한 대마씨 추출물에서 항균 활성이 새롭게 나타났다. 또한, 유산균 발효 대마씨 추출물의 총 폴리페놀 함량과 DPPH 라디칼 소거능, SOD 유사 활성, ${\alpha}$-glucosidase 저해 활성은 발효하지 않은 대마씨 추출물에 비해 각각 증가됨을 확인하였다. 추가적으로 멜라닌 증가 물질로 알려진 tyrosinase의 저해 활성도 발효하지 않은 유산균에 비해 증가되었다. 이러한 결과들을 통해 유산균으로 발효한 대마씨 추출물은 항산화, ${\alpha}$-glucosidase 저해 활성 및 tyrosinase 저해 활성을 촉진시키며, 따라서 유산균으로 발효한 대마씨 추출물을 이용한 기능성 소재 및 식품 개발로의 활용이 가능할 것으로 기대한다.

Recent Developments at the Large Binocular Telescope Observatory, GMT's forerunner

  • Veillet, Christian
    • 천문학회보
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    • 제40권1호
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    • pp.70.3-70.3
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    • 2015
  • After a short description of the telescope, we will report on the recent developments in three main areas: - Commissioning of the last of LBT's first generation instruments, now well underway, - Adaptive Optics (AO) and ground-layer AO progress and planned upgrades, - Interferometry first science results. We will also explore the future of the facility as it moves to full operation and strive to be the first of the ELTs in the decade-long window in which GMT, TMT, and E-ELT break ground and start taking shape.

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베어링강의 개발동향 (The Current Status of the Development of Bearing Steels)

  • 유선준
    • 소성∙가공
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    • 제12권2호
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    • pp.88-93
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    • 2003
  • Several alloy bearing steels have been starting to replace for conventional high carbon and high chromium bearing steel since 1980. In this paper the global bearing developing trends were summarized in several important aspects- developments in alloy bearing steels for improved service life, development of inclusion rating method in bearing steel and developments in bearing service life testing.

Developments in Tractor Design

  • Renius, Kari-Th.
    • 한국농업기계학회:학술대회논문집
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    • 한국농업기계학회 1993년도 Proceedings of International Conference for Agricultural Machinery and Process Engineering
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    • pp.31-48
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    • 1993
  • Economic background is discussed with consequences for tractor industry and tractor concepts. Particular reference is given to the question of frame chassis instead of block concept. Development trends of tractor components are analyzed for driving system (including four-wheel drive and brakes), diesel engines, transmissions, human engineering , hydraulics and implement control. Consideration is given to electronics and aspects of environmental protection as well. Expected further tractor design developments are summarized at the end of the paper.

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Embedded 3D-Sensing Devices with Real-Time Depth-Imaging Technologies

  • Bhowmik, Achintya K.
    • 인포메이션 디스플레이
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    • 제18권3호
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    • pp.3-12
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    • 2017
  • In the recent years, significant advances have been made in the development of small form-factor, low power, and low cost 3D-sensing devices based on depth-imaging technologies with real-time performance. This has led to the advent of devices and machines that are able to sense and understand the world, navigate in the environment, and interact naturally with their human users. Human-computer interactions based on touch sensing and speech recognition have already become mainstream, and the rapid developments in 3D sensing is paving the path towards the next level of machine intelligence and interactions. This paper discusses the recent developments in real-time 3D sensing technologies and their emerging system application.