• Title/Summary/Keyword: visualization material

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Reasons for Variation in Sensitivity and Specificity of Visual Inspection with Acetic Acid (VIA) for the Detection of Pre-Cancer and Cancer Lesions of Uterine Cervix

  • Parashari, Aditya;Singh, Veena
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.12
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    • pp.7761-7762
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    • 2013
  • Alternative strategies such as visual inspection of cervix with acetic acid, are real time, economical and easily implemented methods for cervical cancer screening. However, variable sensitivity and specificity have been observed in various community based studies. The possible reasons could include variation in man power training, light source used for visualization, and preparation of diluted (4-5%) acetic acid and its storage. A standardized protocol for training, teaching material (easy to understand in the local language) for trainees, supervision and reinforcement by intermittent and supplementary training to check the quality of their observation, a standard protocol for preparation dilute acetic acid and its storage and a standard good light source (equivalent to day light) are needed to minimize the variation in sensitivity and specificity of VIA in community settings.

A Study of Sports Fashion Image in Korea (한국 sports fashion image에 대한 연구)

  • 이은영
    • Journal of the Korea Fashion and Costume Design Association
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    • v.2 no.1
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    • pp.37-49
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    • 2000
  • Korean sports fashion began after 1990. after 1960, using vinyl, leather, plastic & metal material, Yve st. Laurent, Pierre Cardin, Andre Courrges, they lead sportive look. Head of 20th century, fashion was lead by haute­couture, after 60s. It was changed to pret­a poter. Now it can be called of american casual & sports fashion. This study would be a view of modem fashion trend and process of visualization in the future. I studied in reproduction of view & age of hyper media with visual circumstance & artistic background and mordern fashion trend & sports fashion image in korea. In conclusion, sports fashion image as visualizing aesthetic concept of modern fashion be defined as technology for man, for instance comfort, function, flexibility, simplicity and minimalism. Specically, Sports fashion was began satisfied for function after 90s, we can see variety of easy wear, hip-hop casual, entertainment sports wear, new street sports wear, luxury sports wear.

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Application of ecological interface design in nuclear power plant (NPP) operator support system

  • Anokhin, Alexey;Ivkin, Alexey;Dorokhovich, Sergey
    • Nuclear Engineering and Technology
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    • v.50 no.4
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    • pp.619-626
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    • 2018
  • Most publications confirm that an ecological interface is a very efficient tool to supporting operators in recognition of complex and unusual situations and in decision-making. The present article describes the experience of implementation of an ecological interface concept for visualization of material balance in a drum separator of RBMK-type NPPs. Functional analysis of the domain area was carried out and revealed main factors and contributors to the balance. The proposed ecological display was designed to facilitate execution of the most complicated cognitive operations, such as comparison, summarizing, prediction, etc. The experimental series carried out at NPPs demonstrated considerable reduction of operators' mental load, time of reaction, and error rate.

Double Labeling of Binding Sites in Cellulosic Substrates Using Endo- and Exoglucanase-Gold Complexes

  • Bae Hyeun-Jong
    • Plant Resources
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    • v.8 no.3
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    • pp.175-180
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    • 2005
  • Thin sections of cellulose fibers were incubated with an endo- and an exoglucanase labeled with gold particles of differing sizes. The hydrolytic sites were then visualized under transmission electron microscopy (TEM). The potential interaction between the ${\beta}$-1, 4-glucan substrates and the endo- and the exoglucanases was investigated using cellulosic and lignocellulosic substrates. The simultaneous visualization was very successful in distinguishing preferred substrates for each cellulase in lignocellulosic substrates. When plant lignocellulose was preincubated with endocellulase, density of the gold labeling greatly increased suggesting that preliminary exposure of lignocellulosic material to endocellulase may have enhanced the accessibility of the substrate to endocellulase and exocellulase. This result provided a plausible explanation for the observed endo/exo cellulase co-hydrolysis.

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The Effects of Electron Beam Exposure Time on Transmission Electron Microscopy Imaging of Negatively Stained Biological Samples

  • Kim, Kyumin;Chung, Jeong Min;Lee, Sangmin;Jung, Hyun Suk
    • Applied Microscopy
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    • v.45 no.3
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    • pp.150-154
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    • 2015
  • Negative staining electron microscopy facilitates the visualization of small bio-materials such as proteins; thus, many electron microscopists have used this conventional method to visualize the morphologies and structures of biological materials. To achieve sufficient contrast of the materials, a number of imaging parameters must be considered. Here, we examined the effects of one of the fundamental imaging parameters, electron beam exposure time, on electron densities generated using transmission electron microscopy. A single site of a negatively stained biological sample was illuminated with the electron beam for different times (1, 2, or 4 seconds) and sets of micrographs were collected. Computational image processing demonstrated that longer exposure times provide better electron densities at the molecular level. This report describes technical procedures for testing parameters that allow enhanced evaluations of the densities of electron microscopy images.

X-ray Micro-Imaging Technique and Its Application to Micro-Bubbles in an Opaque Tube (X-ray Micro-Imaging 기법 소개 및 불투명 튜브 내부의 마이크로 버블 가시화 연구)

  • Lee Sang-Joon;Kim Seok;Paik Bu-Geun
    • 한국가시화정보학회:학술대회논문집
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    • 2002.11a
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    • pp.31-34
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    • 2002
  • Imaging techniques using x-ray beam at high energies (>6KeV) such as contact radiography, projection microscopy, and tomography have been used to nondestructively discern internal structure of objects in material science, biology, and medicine. This paper introduces the x-ray micro-imaging method using 1B2 micro-probe line of PAL (Pohang Accelerator Laboratory). Cross-sectional information on low electron density materials can be obtained by probing a sample with coherent synchrotron x-ray beam in an in-line holography setup. Living organism such as plants, insects are practically transparent to high energy x-rays and create phase shift images of x-ray wave front. X-ray micro-images of micro-bubbles of $20\~120\;{\mu}m$ diameter in an opaque tube were recorded. Clear phase contrast images were obtained at Interfaces between bubbles and surrounding liquid due to different decrements of refractive index.

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Simple Image-Separation Method for Measuring Two-Phase Flow of Freely Rising Single Bubble (상승하는 단일 버블 이상유동의 PIV 계측을 위한 영상분리기법)

  • Park Sang-min;Jin Song-wan;Kim Won-tae;Sung Jae-yong;Yoo Jung-Yul
    • 한국가시화정보학회:학술대회논문집
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    • 2002.11a
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    • pp.7-10
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    • 2002
  • A novel two-phase PIV algorithm using a single camera has been proposed, which introduces a method of image-separation into respective phase images, and is applied to freely rising single bubble. Gas bubble, tracer particle and background each have different gray intensity ranges on the same image frame when reflection and dispersion in the phase interface are intrinsically eliminated by optical filters and fluorescent material. Further, the signals of the two phases do not interfere with each other. Gas phase velocities are obtained from the separated bubble image by applying the two-frame PTV. On the other hand, liquid phase velocities are obtained from the tracer particle image by applying the cross-correlation algorithm. Moreover, in order to increase the SNR (signal-to-noise ratio) of the cross-correlation of tracer particle image, image enhancement is employed.

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Micro-Structure Measurement and Imaging Based on Digital Holography

  • Kim, Kyeong-Suk;Jung, Hyun-Chul;Chang, Ho-Seob;Kee, Chang-Doo;Akhter, Naseem
    • Journal of the Korean Society for Nondestructive Testing
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    • v.30 no.3
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    • pp.257-260
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    • 2010
  • Advancements in the imaging and computing technology have opened the path to digital holography for non-destructive investigations of technical samples, material property measurement, vibration analysis, flow visualization and stress analysis in aerospace industry which has widened the application of digital holography in the above fields. In this paper, we demonstrate the non-destructive investigation and micro-structure measurement application of digital holography to the small particles and a biological sample. This paper gives a brief description of the digital holograms recorded with this system and illustratively demonstrated.

Research and development of haptic simulator for Dental education using Virtual reality and User motion

  • Lee, Sang-Hyun
    • International journal of advanced smart convergence
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    • v.7 no.4
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    • pp.114-120
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    • 2018
  • The purpose of this paper is to develop simulations that can be used for virtual education in dentistry. This development goal is to allow dental students to learn the necessary surgical techniques at the point of their choice, not going into the operating room, away from time, space, and physical limits. In this paper configuration, the optimization method is applied convergent, and when the operation of the VR contents is performed, the content data is extracted from the interaction analysis formed in the VR engine, and the data is processed by the content algorithm. It also computes events and dental operations generated within the 3D engine programming and generates corresponding events through data processing according to the input signal. The visualization information is output to the HMD using the rendering information. In addition, the operating room environment was constructed by studying lighting and material for actual operating room environment. We applied the ratio of actual space to virtual space and the ratio between character and actual person to create a spatial composition at a similar rate to actual space.

A study on the selection methodology of materials by design process in manufacturing process (제조공정에서 디자인 프로세스에 의한 소재선정 방법론 연구)

  • Song, Sung-il;Kang, Seung-min
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.29 no.1
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    • pp.39-44
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    • 2019
  • This study renewed the 'RE_Double Diamond' design process on the importance that material selection should reflect the needs of the consumer as much as possible in product development. In addition, the provider-centered secondary stakeholder map process among existing double-diamond methodologies has been applied, and the selection of materials through communication between designers and engineers, including the construction of information focused on visualization.