• 제목/요약/키워드: light elements

검색결과 838건 처리시간 0.026초

사령수(四靈獸) 민화의 도상해석학적 분석에 의한 패션문화상품 디자인 개발 (Development of Fashion Cultural Product Design Based on the Iconological Analysis of Four Auspicious Animals in Korean Folk Painting)

  • 김지영
    • 패션비즈니스
    • /
    • 제23권2호
    • /
    • pp.18-33
    • /
    • 2019
  • The purpose of this study is to develop fashion cultural products that contain an example of cultural symbolism, which is based on the results of iconological analysis seen on imaginary animals. The method of research was to derive design ideas through a verbal association method, using the technique of mind map as based on the iconological analysis results. In the scarf design, four auspicious animals were used as the main motifs, and the background elements that appeared with each folk painting were used as sub-motifs for each of the four animals. In this case, the Yong was expressed with an image of clouds and flames as sub-motifs, and was strongly represented by the presence of a contrast color combination. In what follows, the Bonghwang was used with the sun and feathers in a stable structure due to its four-way arrangement, and was expressed with its soft light tone. The Shingoo was used with blue and khaki colors of dull and deep tone, and the image of aquatic plants and lotus were used. Finally, with the Kirin was represented by a symmetrical structure as characterized with a dull toned color and square border that provides a sense of stability. The clutch bags were as generally expressed using simple animal motifs, and were composed of a uniform motif and color. The design process used the Illustrator CS6 to perform motifs design. In the end, the process finally developed the actual product of eight scarves and four clutch handbags.

PVDF 압전소자를 이용한 심장박동 및 호흡수 동시측정센서개발 (Development of New Stacked Element Piezoelectric Polyvinylidene Fluoride Pressure Sensor for Simultaneous Heartbeat and Respiration Measurements)

  • 박창용;권현규;이소진;롱원만
    • 한국기계가공학회지
    • /
    • 제18권4호
    • /
    • pp.100-108
    • /
    • 2019
  • In this paper, a new stacked element pressure sensor has proposed for heartbeat and respiration measurement. This device can be directly attached to an individual's chest; heartbeat and respiration are detected by the pulsatile vibration and deformation of the chest. A key feature of the device is the simultaneous measurement of heart rate and respiration. The structure of the sensor consists of two stacked elements, in which one element includes one polyvinylidene fluoride (PVDF) thin film bonded on polydimethylsiloxane (PDMS) substrate. In addition, for the measurement and signal processing, the electric circuit and the filter are simply constructed with an OP-amp, resistance, and a capacitor. One element (element1, PDMS) maximizes the respiration signal; the other (element2, PVDF) is used to measure heartbeat. Element1 and element2 had sensitivity of 0.163V/N and 0.209V/N, respectively, and element2 showed improved characteristics compared with element1 in response to force. Thus, element1 and element2 were optimized for measuring respiration heart rate, respectively. Through mechanical and vivo human tests, this sensor shows the great potential to optimize the signals of heartbeat and respiration compared with commercial devices. Moreover, the proposed sensor is flexible, light weight, and low cost. All of these characteristics illustrate an effective piezoelectric pressure sensor for heartbeat and respiration measurements.

카를로 스카르파의 뮤지엄에 나타난 공간 구성과 표현에 관한 연구 - 카스텔베키오 뮤지엄의 뮤제오그래피 중심으로 - (A Study on Spatial Composition and Expression of Carlo Scarpa's Museum - Focused on Museography of Museo di Castelvecchio -)

  • 이경진
    • 대한건축학회논문집:계획계
    • /
    • 제36권5호
    • /
    • pp.3-10
    • /
    • 2020
  • According to Carol Duncan, the museum can be studied in the aspect of space and object from viewer experience. The paradigm of modern museums is shifting away from the object toward the human. The modern museum begins to have the diversity activities and the experience by the body. The purpose of this study is to analyze methods of Carlo Scarpa's museum works. An Italian architect, Carlo Scarpa had characterized montage architecture through fragments and isolations. This study reviews the works of Carlo Scarpa's museum focused on Museo di Castelvecchio. Carlo Scarpa had left the existing materials and coated it with new materials intentionally. This method makes the layer and it exposes the historical times. The layer is a reinterpreting technic of Venetian architecture. The perceptive experience appears at the exhibition boundary through light, material, pattern, axis, and composition of elements. Through the analysis, the architecture of Carlo Scarpa's museum provides a walking path and the composition of exhibition objects with visual logics. It makes and show us the experience with combining images. Carlo Scarpa had tried to expose the past times in the architecture of museum with expression on the layers and to connect the body's movements with seeing and gazing. This expression makes possible the perceptual experience. It can be understood as the montage characteristic. Through this, Carlo Scarpa's museum makes us relationship with historical architecture. Carlo Scarpa had planned a exhibitional promenade in the architecture of museums. In this regard, this is the museography of Carlo Scarpa's museums that should be paid attention to modern times in historical architecture.

황산 용액으로부터 아민계 추출제의 액-액 추출법에 의한 우라늄(VI)과 바나듐(V)의 분리 (Separation of Uranium(VI) and Vanadium(V) from Sulfuric Acid Media by Amine Based Extractants through Liquid-liquid Extraction Technique)

  • 전종혁;이진영;김준수;윤호성;라제쉬 쿠마 죠티
    • 자원리싸이클링
    • /
    • 제30권4호
    • /
    • pp.64-74
    • /
    • 2021
  • 원자력 발전 프로그램에 의해 세계 우라늄 메탈의 수요가 증가함에 따라 우라늄 메탈의 중요도는 날로 증가하고 있다. 이러한 우라늄 수요의 높은 증가로 인해 주로 바나듐을 비롯한 다른 원소들로부터 우라늄을 회수하고자 하는 새로운 추출법들이 더욱 중요하게 되었다. 본 연구에서는 kerosene에 희석된 상업용 아민 기반 추출제를 사용하여 황산 용액에서 우라늄(VI)과 바나듐(V)을 분리하는 방법을 다루었다. 0.005 ~ 5.0 mol/L농도의 황산 용액과 0.005 ~ 0.2 mol/L농도의 추출제를 사용하였다. 모든 실험은 25℃에서 30분동안 동일한 수상과 유기상의 비율(A:O = 1:1)로 수행하였다. 실험 결과 값으로부터 계산된 분리 계수(SF's)를 제시하고 모든 실험 값과 비교하였다.

本土性千禧年運動的建構與轉化: 以韓國大巡真理會為焦點的東亞比較研究 (Daesoon Jinrihoe as a Nativist Millennialism: A Comparative Study of East Asian New Religious Movements)

  • 丁仁傑
    • 대순사상논총
    • /
    • 제34집
    • /
    • pp.171-202
    • /
    • 2020
  • 本研究以韓華日的三個最大的末世論教派為討論對象, 並以千禧年的藍圖想像, 藍圖的再詮釋, 藍圖的轉化, 藍圖的制度化四個向度, 做為比較重點。韓國的大巡真裡會, 華人世界的一貫道, 日本的天理教等, 歷史起源的時空相當類似, 經百年後如今各自在全球都擁有超過百萬以上的信徒, 相當值得作比較性的研究。「本土性的千禧年運動」這個概念, 是我們對焦進行比較的概念工具 : 在外來侵略中, 失去祖先的土地和傳統生活方式, 產生了本土運動。透過奇蹟性的手段──外力勢力可以驟然消失, 神話人物或彌賽亞的來臨, 地景的改變──其終極目標是要去修復這些元素。遠處的終極目標激發了本土者以拋棄現有生活方式和物質擁有做為奉獻。而以千禧年藍圖的轉化與制度化為焦點, 就各團體的發展結果來看, 以兩個向度來做區別 : A千禧年的時間向度 : 由現實世界中去達成, 或是必須還要出現一個截然有別的想像性的永恆國度 ; B千禧年的集體性的視野 : 需要在神聖超越性的基礎上去建立烏托邦, 或是可能由人心的改造中創造集體性的幸福。由此交叉對應中, 我們可能得到各種團體的相對位置。分析性的來看, 三個團體轉化的模式與方向有著很大的差異。一貫道是將天國的藍圖, 轉為設定在另一個永恆的國度裡, 而將此世的世俗人生場域, 視為是修練本心的場所, 是做為進道之階所必須。天理教設定了教祖的永生, 這創造出天堂在人間的落實, 也激發成員與超越性之間的相容相洽不相分離。大巡真理會把教祖直接視為拯救全人類的開放性的上帝, 他不只是拯救信徒, 也要拯救全世界, 尤其是要創造以韓國為中心的美好世界的來臨。教祖開啟了後天世界, 它其實就在這個世間, 但這個後天世界尚未完成, 尚需要所有人員的努力, 這個努力有個人性的超自然的意義 (個人要解冤, 報恩和神人調化), 也有現實性的意義 (布德天下, 改造人間), 這些努力乃是建設人間成為理想天國的前提。本文的比較性探討, 還僅只是一個極為初步的探索, 未來有待收集更多資料, 以能進行更為細部與深刻的討論。

원격 유성 분광 관측 시스템 구축과 관측 사례 연구 (Establishment of Remote Meteor Spectroscopic Observation System and Observation Case Study)

  • 최동열
    • 한국지구과학회지
    • /
    • 제43권1호
    • /
    • pp.1-22
    • /
    • 2022
  • 운장산 천문대에 있는 원격 유성 분광 관측 시스템의 설치 및 운영에 대해 자세히 설명한다. 총 3대의 고감도 CCD 카메라가 설치되었으며 2대의 CCD 카메라에는 렌즈 전면에 회절 격자를 부착하였다. 시스템은 2019년 11월에 설치되었고, f/1.2 렌즈와 결합된 고감도의 "Watec-902H2" 카메라가 사용되었다. 스펙트럼 관찰을 위한 회절 격자는 500 l/mm이 사용되었다. 관측은 2019년 11월부터 2020년 6월까지 진행되었다. 유성 탐지 및 후속 분석을 위해 SonotaCo UFO 소프트웨어 제품군을 사용했으며, 유성 스펙트럼을 분석하기 위해서는 RSpec 소프트웨어를 사용하였다. 관측영상을 활용하기 위해 Astronomical Calibration과 Photometric Calibration을 수행하였고, 최종적으로 유성의 화학 성분을 분석하였다. 우리는 유성 분광 관측 시스템의 설치와 설정/운영 경험을 설명하고 첫 번째 관측 결과를 제시한다. 또한 결과를 통해 유성의 기원에 대한 간략한 정보를 제공하고자 한다.

Graded approach to determine the frequency and difficulty of safety culture attributes: The F-D matrix

  • Ahn, Jeeyea;Min, Byung Joo;Lee, Seung Jun
    • Nuclear Engineering and Technology
    • /
    • 제54권6호
    • /
    • pp.2067-2076
    • /
    • 2022
  • The importance of safety culture has been emphasized to achieve a high level of safety. In this light, a systematic method to more properly deal with safety culture is necessary. Here, a decision-making tool that can apply a graded approach to the analysis of safety culture is proposed, called the F-D matrix, which determines the frequency and the difficulty of safety culture attributes recently defined by the IAEA. A hierarchical model of difficulty contributors was developed as a scoring standard, and its elements were weighted via expert evaluation using the analytic hierarchy process. The frequency of the attributes was derived by analyzing reported events from nuclear power plants in the Republic of Korea. Period-by-period comparisons with the F-D matrix can show trends in the change of the maturity level of an organization's safety culture and help to evaluate the effectiveness of previously implemented measures. In the evaluating the difficulty of the attributes in the recently developed harmonized safety culture model, the difficulties of Trending, Benchmarking, Resilience, and Documentation and Procedures were found to be relatively high, while the difficulties of Conflicts are Resolved, Ownership, Collaboration, and Respect is Evident were found to be relatively low. A case study was conducted with an analysis period of 10 years to attempt to reflect the many changes in safety culture that have been made following the Fukushima accident in March 2011. As a result of comparing two periods following the Fukushima accident, the overall frequency decreased by about 40%, providing evidence for the effects of the various improvements and measures taken following the increased emphasis on safety culture. The proposed F-D matrix provides a new analytical perspective and enables an in-depth analysis of safety culture.

이중계자를 갖는 10 MW급 전초전도 동기 발전기의 교류손실 해석 (AC Loss Analysis of 10 MW Class Fully High Temperature Superconducting Synchronous Generators with Dual Field Windings)

  • 박상호;이명희;이세연;양형석;김우석;이지광;최경달
    • KEPCO Journal on Electric Power and Energy
    • /
    • 제6권4호
    • /
    • pp.467-472
    • /
    • 2020
  • The superconducting synchronous generator is one of the breakthrough elements for direct-drive wind turbines because it is light and small. Normally the superconducting one has copper armature windings in the stator and superconducting field windings on the rotor. The high resistance of the armature can make large copper losses, comparing with the conventional generators with a gear box. One of the solutions for the large copper losses could be a fully superconducting generator. But the high magnetic fields from the superconducting field windings on the rotor also make high perpendicular magnetic fields on the superconducting tapes in the armature windings. We have proposed a fully superconducting synchronous generator with dual field windings. It could immensely decrease the circumferential component of the magnetic field from the field windings at the armature windings. In this paper, we conceptually designed 3 types of superconducting synchronous generators. The first one is the fully superconducting one with conventional structure, which has superconducting armature windings in the stator and superconducting field windings on the rotor. The second one is the one with dual superconducting field windings and superconducting armature windings between them. The last one is the same as the third one except the structure of the armature. If the concentrated armature windings are superconducting ones with cryostats, then they cannot be installed within the span of 2 poles. So, we adopted 3 phases windings within 4 poles system. It makes more AC losses but can be manufactured really.

공공도서관의 메타버스 도입을 위한 MZ세대의 이용자 인식 연구 (A Study on the Generation MZ Users' Perception of Metaverse in Public Libraries)

  • 김영주;권선영
    • 정보관리학회지
    • /
    • 제39권3호
    • /
    • pp.217-240
    • /
    • 2022
  • 코로나19로 인해 비대면 요소가 중요해지면서 메타버스가 사회적 주목을 받게 되었고, MZ세대는 공공도서관의 주 이용 세대가 되었다. 이러한 흐름에 비추어 볼 때, 공공도서관의 주 이용자인 MZ세대를 위한 서비스를 도입할 필요가 있으며, 사회적 발전에 맞춘 서비스를 제공할 필요가 있다. 따라서 본 연구는 MZ세대를 중심으로 설문조사와 반구조화 면담을 통해 메타버스에 대한 인식을 조사한 후, 공공도서관에서 이용자를 대상으로 한 메타버스 적용에 대한 방안을 제안하였다. 연구의 결과에 따라 본 연구에서 제언한 공공도서관의 메타버스 도입을 위한 방향은 첫째, 메타버스에 대한 기초적인 교육과 정보 제공 둘째, 소통을 바탕으로 한 커뮤니티를 장점으로 한 서비스의 제공. 셋째, 시공간의 제약을 받지 않는 프로그램의 제공 넷째, 메타버스에 대한 사서들의 전문성 향상을 통한 사서에 의한 서비스가 제공. 다섯째, MZ세대를 위한 서비스 제공이다.

The new criterion on performance-based design and application to recent earthquake codes

  • Azer A. Kasimzade;Emin Nematli;Mehmet Kuruoglu
    • Earthquakes and Structures
    • /
    • 제24권1호
    • /
    • pp.11-20
    • /
    • 2023
  • "Performance-based design (PBD)" is based on designing a structure with choosing a performance target under design criteria to increase the structure's resistance against earthquake effect. The plastic hinge formation is determined as one of the fundamental data in finite elements nonlinear analysis to distinguish the condition of the structure where more significant potential damage could occur. If the number of plastic hinges in the structure is increased, the total horizontal load capability of the structure is increased, also. Theoretically, when the number of plastic hinges of the plane frame structure reaches "the degree of hyperstaticity plus one", the structure will reach the capability of the largest ultimate horizontal load. As the number of plastic hinges to be formed in the structure increases towards the theoretical plastic hinge number (TPHN), the total horizontal load capability of the structure increases, proportionally. In the previous studies of the authors, the features of examining the new performance criteria were revealed and it was formulated as follows "Increase the total number of plastic hinges to be formed in the structure to the number of theoretical plastic hinges as much as possible and keep the structure below its targeted performance with related codes". With this new performance criterion, it has been shown that the total lateral load capability of the building is higher than the total lateral load capability obtained with the traditional PBD method by the FEMA 440 and FEMA 356 design guides. In this study, PBD analysis results of structures with frame carrier systems are presented in the light of the Turkey Building Earthquake Code 2019. As a result of this study, it has been shown that the load capability of the structure in the examples of structures with frame carrier system increases by using this new performance criterion presented, compared to the results of the examination with the traditional PBD method in TBEC 2019.