• 제목/요약/키워드: Blank Space

검색결과 46건 처리시간 0.03초

다이레스 CNC 포밍을 위한 등고선 공구경로 생성 (Contouring Tool Path Generation for Dieless CNC Forming)

  • 강재관;진영길;윤세봉;강병수;염경섭
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2005년도 춘계학술대회 논문집
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    • pp.1753-1756
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    • 2005
  • The sheet parts are formed with dies conventionally. But this conventional forming process is not suited to small volume and varied production for the reason of high cost. For the solution of this problem, a new forming process, which is called CNC incremental sheet forming, is being introduced. This process can form sheet parts without die, and is very well suited to small volume and varied production in space flight and automobile. In this paper, dieless CNC forming system based on a machining center is developed. A special device to grasp and pull the blank sheet built in the machining center and tool path generation S/W from STL file of 3-D model are developed. Several sheet parts are incrementally formed to verify the effectiveness of the developed system.

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어린이그림책화면의 연속성에 대한 연구 (A Study on the Continuity of the Image of Picture Book for Children)

  • 유동관
    • 디자인학연구
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    • 제16권4호
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    • pp.233-242
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    • 2003
  • 어린이그림책에 표현된 일러스트레이션은 하나의 화면뿐만 아니라 화면과 화면의 조화로운 연결로 그림책의 줄거리와 내용을 전달한다. 그림책화면에는 빈 여백과 형태, 질감과 색채, 그리고 공간감 등의 구성요소들이 있어 화면상에 놓여진 위치에 따라 어린이에게 다양한 정서와 감동을 준다. 따라서 어린이그림책에는 자연스러운 이야기 내용과 함께 통일성과 리듬감 있는 구성요소로 화면의 흐름을 전달하는 연속성이 있다. 화면의 연속성은 글과 그림, 화면과 화면, 그리고 화면 내에서 그림의 연결에 따른 시각적 연상으로 이미지전달을 가능하게 하며, 어린이가 이야기 내용을 이해할 수 있도록 한다. 본 연구는 그림책화면의 연속성을 연구 분석함으로써 개성과 창의성을 바탕으로 제작되는 어린이그림책화면의 조화로운 연결에 대한 올바른 표현방향을 제시한다.

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창의 조망에 따른 분위기 및 시각적 쾌적성 평가에 대한 예비실험 (Preliminary Experiments on Discomfort Glare and Subjective Impressions from the Window Views)

  • 신주영;윤근영;김정태
    • KIEAE Journal
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    • 제10권2호
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    • pp.25-30
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    • 2010
  • The daylited space can improve visual comfort and occupant's well-being. However discomfort glare from the daylight is a common problem in indoor environments and in general, the window is the main glare sources. Some formulas have been proposed for predicting glare from the daylight, however, they do not consider the effect on glare of the view through a window and some studies proved that they are inadequate in real daylight situation. This research aims to identify the relationship between view and discomfort glare considering the subjective impressions. As a preliminary experiment, this paper sets up the experimental protocol to reveal relationships between views from a window and visual perception in a controlled laboratory experiment. $1.2m{\times}1.2m$ artificial window was developed and $0.9m{\times}0.9m$ view image was placed on the window. Discomfort glare and impression evaluation was carried out under four different views and one blank view as a reference condition. The results showed that the subjects evaluated discomfort glare differently with the views even under the same luminance conditions and tended to feel less glare with distance views compared to near views.

자동차용 강판의 겹치기 $CO_2$ 레이저 용접에서 용접속도와 판재간격에 따른 용접특성 연구 (Effects of the Gap and the Speed on the Lap-Joint $CO_2$ Laser Welding of Automotive Steel Sheets)

  • 이경돈;박기영;김주관
    • Journal of Welding and Joining
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    • 제20권4호
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    • pp.510-516
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    • 2002
  • Recently the laser welding technology has been applied increasingly for the automotive bodies. But the lap joint laser welding for 3 dimensional automotive body is new while the butt joint laser welding is well known as the tailored blank technology. In this study, the process window was found for the full penetration welding of the lap joint of the 1mm-thick high strength steel sheets. The limit curves and characteristic curves were suggested to define the boundaries and the contour lines in a space of the welding speed and the gap size. The characteristics of the weld sectional geometry were used to determine the limit curves. They are bead width, penetration depth and sectional area. After the observed data was analysed carefully, it was noticed that there was a transition point at which the sectional shape was changed and the bead area jumped as the welding speed was increased. Also a new concept of 'input energy Per volume' was suggested to distinguish the difference at the transition Point. The difference of sectional areas at the transition point can be related to the dynamic keyhole phenomena.

The effects of Sijo, Korean short lyric song on calm impatience is on YouTube (https://youtu.be/__Ua6p9S0o8) sung by Wol-ha Kim

  • Ko, Kyung Ja
    • 셀메드
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    • 제7권3호
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    • pp.11.1-11.3
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    • 2017
  • The aim of this article is to argue that a valuable tool to calm impatience is to listen to Sijo. The author seeks to argue that the best way to calm impatience is to listen to Sijo. Sijo refers to a slow and mellow music in the family of Han Ak (Korean music, 韓樂). The term slow is a revered keyword in our culture. "Slow" is a blank word in Han Ak (Korean music, 韓樂). The soul of Wol-ha Kim's Sijo is a beauty of space and easiness. Therefore, her voice will help relax the muscles of the listener and calm the soul. It is akin to the struggles of modern people competing for something excessively but ending up with nothing. We often find that gentle jogging is better than sprinting. Slow music is thus good for one's health. For example, we know that our skin can become beautiful and that real beauty can be obtained only when the body and mind are at rest and in comfort. Physical appearance depends on a healthy mind and body. The author believes that Sijo for music therapy is good for our mental health. If its effectiveness is confirmed after performing tests on animals and humans in an experimental study, we can use this type of music to treat patients with psychological illnesses.

Chandra Archival Survey of Galaxy Clusters: X-ray Point Sources in Cool-core and Non-cool-core Clusters

  • 김민선;김은혁
    • 천문학회보
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    • 제37권2호
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    • pp.78.1-78.1
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    • 2012
  • We have studied the physical properties of X-ray point sources in galaxy clusters using ~600 Chandra archival observations. The goal of this study is to investigate the density environmental effects on the physical properties of X-ray point sources by comparing the properties of X-ray point sources in galaxy clusters to those in typical blank fields. In this presentation, we show the nature of X-ray point sources which are expected to be related with galaxy clusters with different core properties. Using ~60 galaxy clusters observed with Chandra, we investigate the physical properties of X-ray point sources in cool-core and non-cool-core clusters. The cool-core clusters are known to have short central cooling time, and are characterized by low central entropy, systematic central temperature drops, and a brightest cluster galaxy at the X-ray peak. While the non-cool-core clusters have longer central cooling time, and are characterized by large central entropies and flat or centrally rising temperature profile. We show that how central core properties of galaxy clusters affect on the physical properties of X-ray point sources.

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Public Identity, Paratext, and the Aesthetics of Intransparency: Charlotte Smith's Beachy Head

  • Jon, Bumsoo
    • 영어영문학
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    • 제58권6호
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    • pp.1167-1191
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    • 2012
  • For Romantic women writers the paratext itself is essentially a masculine literary space affiliated with established writing practices; however, this paper suggests that Charlotte Turner Smith's mode of discourse in her use of notes and their relation to the text proper are never fixed in her contemplative blank-verse long poem, Beachy Head (1807). Even though the display of learning in the paratext partly supports the woman writer's claim to authority, this paper argues that Smith's endnotes also indicate her way of challenging the double bind for women writers, summoning masculine authority on the margins of her book while simultaneously interrogating essentialist thinking and instructions about one's identity in a culture and on the printed page. The poem shows how the fringes of the book can be effectively transformed from a masculine site of authority to an increasingly feminized site of interchange as Smith writes with an awareness of patriarchal, imperial abuses of power in that area of the book. There is a persistent transgression of cultural/textual boundaries occurring in Beachy Head, which explores the very scene and languages of imperial encounter. Accordingly, if Wordsworth's theory of composition suggests a subjective and abstract poetic experience-an experience without mediation-in which its medium's purpose seems to be to disappear from the reader's consciousness, an examination of the alternative discourse of self-exposure in Smith's poem reveals the essentially fluid nature of media-consciousness in the Romantic era, which remains little acknowledged in received accounts of Romantic literary culture.

Suggestion for Objective Evaluation of Comparative Pulse Diagnosis

  • Jun-Sang Yu
    • 대한약침학회지
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    • 제27권1호
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    • pp.21-26
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    • 2024
  • Objectives: Pulse is a method of Korean medicine diagnosis and is an important clue to detect the organs, nature, and progress of the disease. Pulse examination is included in the basic examination of Korean medicine doctors, but there is no standardized method for diagnosing pulse although the types and methods of the pulse taking are briefly described in the literature, making it difficult to spread the examination method. In this regard, I would like to propose an objective evaluation method. Methods: Although the importance of pulse examination and the method of pulse examination are known in the literature, it is difficult for undergraduate students or inexperienced Korean medicine doctors to access it, so in this paper a method of marking the size of the pulse power in the blank space for objective evaluation was devised and presented. Results: The size of the pulse power should be indicated using the 1-cell, 3-cell, or 5-cell method according to the left and right wrists and the cun, guan and chi on both sides. Conclusion: The method of pulse diagnosis is an important diagnostic method as a verification process for making a Korean medical diagnosis. The remaining Korean medicine diagnostic methods, including pulse diagnosis, also need to undergo objectification. It is believed that the objectification of these diagnostic methods will lead to an improvement in the treatment rate of Korean medicine.

1.6 M SOLAR TELESCOPE IN BIG BEAR - THE NST

  • GOODE PHILIP R.;DENKER CARSTEN.J.;DIDKOVSKY LEONID I.;KUHN J. R.;WANG HAIMIN
    • 천문학회지
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    • 제36권spc1호
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    • pp.125-133
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    • 2003
  • New Jersey Institute of Technology (NJIT), in collaboration with the University of Hawaii (UH), is upgrading Big Bear Solar Observatory (BBSO) by replacing its principal, 65 cm aperture telescope with a modern, off-axis 1.6 m clear aperture instrument from a 1.7 m blank. The new telescope offers a significant incremental improvement in ground-based infrared and high angular resolution capabilities, and enhances our continuing program to understand photospheric magneto-convection and chromospheric dynamics. These are the drivers for what is broadly called space weather - an important problem, which impacts human technologies and life on earth. This New Solar Telescope (NST) will use the existing BBSO pedestal, pier and observatory building, which will be modified to accept the larger open telescope structure. It will be operated together with our 10 inch (for larger field-of-view vector magnetograms, Ca II K and Ha observations) and Singer-Link (full disk H$\alpha$, Ca II K and white light) synoptic telescopes. The NST optical and software control design will be similar to the existing SOLARC (UH) and the planned Advanced Technology Solar Telescope (ATST) facility led by the National Solar Observatory (NSO) - all three are off-axis designs. The NST will be available to guest observers and will continue BBSO's open data policy. The polishing of the primary will be done in partnership with the University of Arizona Mirror Lab, where their proof-of-concept for figuring 8 m pieces of 20 m nighttime telescopes will be the NST's primary mirror. We plan for the NST's first light in late 2005. This new telescope will be the largest aperture solar telescope, and the largest aperture off-axis telescope, located in one of the best observing sites. It will enable new, cutting edge science. The scientific results will be extremely important to space weather and global climate change research.

조선시대 복식공예품의 텍스타일 패턴구성에 관한 연구 (A Study on Textile Patterns-Composition for the Costume Craftworks in the Chosun Dynasty)

  • 현선희;손영미
    • 한국의류학회지
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    • 제36권7호
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    • pp.741-755
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    • 2012
  • This study mathematically and scientifically investigated the aesthetic consciousness of women inherent in the costume craftworks craftworks of the Chosun Dynasty through a systematical analysis of their textile pattern composition using visual language theory. The tangent value from the horizontal and vertical ratio of the costume craftworks craftworks indicated that they had an indigenous proportion system with a relatively regular form and pattern but without an exaggerated type. There was a module based on structures in the textile patterns of the costume craftworks craftworks and the patterns were constructed by the module with the syntagms of the ratio structure. Moreover, the analysis of the pattern designs indicated that the whole form of the costume craftworks craftworks was built through a repetitive structure of feature and one of pattern units; in addition, the craftworks had the extended composition and blank space of daring patterns, an important factor to make a whole design. Therefore, our study suggested that the costume craftworks craftworks of the Chosun Dynasty was characterized by the presentation of the aesthetic style with a Geumgang ratio (an indigenous proportion system used in Korea) and could be interpreted as an art style based on the beauty of space. Moreover, it is suggested that the spirit inherent in the costume craftworks of the Chosun Dynasty (which tried to understand the whole as one and equate the whole and parts) might agree with a holistic tendency as the foundation of Korea art.