• Title/Summary/Keyword: magnification

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A Study on Erotic Style of Fashion

  • Chun, Hei-Jung
    • International Journal of Costume and Fashion
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    • v.7 no.2
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    • pp.49-63
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    • 2007
  • In this study, we inquire into the general concepts of eroticism as it appears in literature and the arts, and use this as a foundation to meditate on the eroticism of attire throughout history. We also ascertained external forms based on the range of "The way we look" by Delong. In this way we inclusively studied both the content and form of modes of eroticism in the perspective of Brodsky's "linked solution." The original concept of eroticism is a technique by which one attains physical passion, referring to a nature which is deeply rooted in the cultural traditions, myths, habits. religion and arts of mankind, inducing expressions of sensual love. We integrated this eroticism in 4 categories: sensuality, which induces beauty; naturality, denoting idealization or rational beauty; primitivity, characterized by grotesque expressions or direct and natural sexual depictions; and symbolism by which sex is symbolically or mechanically projected. The concept of eroticism contains both positive and negative aspects, but rather than dealing with sex in a mechanical or perverted manner to express eroticism, it is more appropriate to guide the direction of modes of eroticism by stimulating the "desire to show" and the "desire to see" with the dialectic of obstruction and exposure as a figurative expression of true passion, and narcistic phenomena in which beauty is expressed through exaggeration or magnification and adhesion.

Self- and Artificially-Controlled ZnO Nanostructures by MOCVD (MOCVD을 이용하여 자발적 및 인위적으로 제어된 산화아연 나노구조)

  • Kim, Sang-Woo;Fujita, Shizuo
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2005.11a
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    • pp.9-10
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    • 2005
  • We report on the fabrication and characterization of self- and artificially-controlled ZnO nanostructures have been investigated to establish nanostructure blocks for ZnO-based nanoscale device application. Systematic realization of self- and artificially-controlled ZnO nanostructures on $SiO_2/Si$ substrates was proposed and successfully demonstrated utilizing metalorganic chemical vapor deposition (MOCVD) in addition with a focused ion beam (FIB) technique. Widely well-aligned two-dimensional ZnO nanodot arrays ($4{\sim}10^4$ nanodots of 130-nm diameter and 9-nm height over $150{\sim}150{\mu}m^2$ with a period of 750 nm) have been realized by MOCVD on $SiO_2/Si$ substrates patterned by FIB. A low-magnification FIB nanopatterning mode allowed the periodical nanopatterning of the substrates over a large area in a short processing time. Ga atoms incorporated into the surface areas of FIB-patterned nanoholes during FIB engraving were found to play an important role in the artificial control of ZnO, resulting in the production of ZnO nanodot arrays on the FIB-nanopatterned areas. The nanodots evolved into dot clusters and rods with increasing MOCVD growth time.

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Improvement of ECG P wave Detection Performance Using CIR(Contextusl Information Rule-base) Algorithm (Contextual information 을 이용한 P파 검출에 관한 연구)

  • 이지연;김익근
    • Journal of Biomedical Engineering Research
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    • v.17 no.2
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    • pp.235-240
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    • 1996
  • The automated ECG diagnostic systems that are odd in hospitals have low performance of P-wave detection when faced with some diseases such as conduction block. So, the purpose of this study was the improvement of detection performance in conduction block which is low in P-wave detection. The first procedure was removal of baseline drift by subtracting the median filtered signal of 0.4 second length from the original signal. Then the algorithm detected R peak and T end point and cancelled the QRS-T complex to get'p prototypes'. Next step was magnification of P prototypes with dispersion and detection of'p candidates'in the magnified signal, and then extraction of contextual information concerned with P-waves. For the last procedure, the CIR was applied to P candidates to confirm P-waves. The rule base consisted of three rules that discriminate and confirm P-waves. This algorithm was evaluated using 500 patient's raw data P-wave detection perFormance was in- creased 6.8% compared with the QRS-T complex cancellation method without application of the rule base.

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Development of a PM Sampler for Collecting Fine Particles via Condensation Magnification

  • Kim, D.S.;Kang, C.H.;Hong, S.B.;Lee, K.W.;Lee, J.H.
    • Journal of Korean Society for Atmospheric Environment
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    • v.24 no.E1
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    • pp.24-31
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    • 2008
  • In this study, a new PM (particulate matter) sampler was developed and fabricated to collect fine particles in the atmosphere, and laboratory and field tests were carried out to evaluate the performance of the sampler. The PM sampler, which was based on impingers, employed an aerosol condensation system as a PM magnifier to improve its collection efficiencies. Sodium chloride, ammonium sulfate and ammonium nitrate aerosols were used as test particles, because these components are rich in ambient aerosols. As a result, it was found that the collection efficiency of the novel PM sampler was very high. Thus, it is believed that the PM sampler is an effective device for sampling fine particles. In addition, it was demonstrated that this work could contribute to the collection or removal of fine particles and be applied to the semicontinuous sampling of ambient aerosols for chemical composition analysis.

Representative Evaluation of Topographical Characteristics of Road Surface for Tire Contact Force Analysis (노면 표면거칠기 특성의 대표값 정량화와 타이어 접촉력 해석 기법에 대한 고찰)

  • Seo, Beom Gyo;Sung, In-Ha
    • Tribology and Lubricants
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    • v.33 no.6
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    • pp.303-308
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    • 2017
  • Most automobile tire companies have not yet considered the geometric information of a road at the design stage of a tire because the topographical characterization of a road surface is very difficult owing to its vastness and randomness. A road surface shows variable surface roughness values according to magnification, and thus, the contact force between the road and tire significantly fluctuates with respect to the scale. In this study, we make an attempt to define a representative value for surface topographical information at multi-scale levels. To represent surface topography, we use a statistical method called power spectral density (PSD). We use the fast Fourier transform (FFT) and PSD to analyze the height profiles of a random surface. The FFT and PSD of a surface help in obtaining a fractal dimension, which is a representative value of surface topography at all length scales. We develop three surfaces with different fractal dimensions. We use finite element analysis (FEA) to observe the contact forces between a tire and the road surfaces with three different fractal dimensions. The results from FEA reveal that an increase in the fractal dimension decreases the contact length between the tire and road surfaces. On the contrary, the average contact force increases. This result indicates that designing and manufacturing a tire considering the fractal dimension of a road makes safe driving possible, owing to the improvement in service life and braking performance of the tire.

Performance Evaluation of IRB System Using Seismic Isolation Test (내진시험을 통한 IRB 시스템의 성능 평가)

  • Park, Young-Gee;Ha, Sung Hoon;Woo, Jae Kwan;Choi, Seung-Bok;Kim, Hyun
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2013.04a
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    • pp.401-406
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    • 2013
  • This paper presents experimental evaluation of IRE (isolation roller bearing) seismic isolation device. From the combination of base isolation on the IRE system displacement response spectrum and acceleration response spectrum, the compressive strength and the coefficient of friction experiments. Also the IRE system is evaluated by environment test according to KS standards. Both the resonance and seismic experiments using a combination of the IRE and Natural Rubber Bearing (NRB) are performed in order to analyze the seismic isolation of the IRE system dynamic characteristics. For the given load and exciting frequency, the resonant frequency becomes lower, but the resonant magnification remains to be same. However, it is shown that when we consider the IRE only, the vibration on the table with the horizontal movement and the independent horizontal displacement due to the rolling motion of the plate and roller are significantly reduced. This result verifies that the proposed optimal design method of the IRE system is very effective.

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Alimentary Lymphoma in a ferret (페렛에 발생한 소화기 림프종 1례)

  • Seo, Kyoung-won;Lee, Jong-bok;Jee, Hyang;Lee, So-ra;Kwon, Tae-uk;Kim, Dae-yong;Youn, Hwa-young;Lee, Chang-woo
    • Korean Journal of Veterinary Research
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    • v.47 no.4
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    • pp.479-482
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    • 2007
  • A 2-year-old spayed female ferret with the clinical signs of diarrhea and anorexia for about 8 days was presented to Hansung animal hospital. The diarrhea was black and paste form. Three palpable abdominal masses were detected in physical examination. By cytologic examination using fine need aspiration, the patient was tentatively diagnosed as lymphoma. Chemotherapy was started with prednisone, vincristine and cyclophosphamide. However, the client requested stopping the therapy at day 18 and the ferret was euthanized. Autopsy was performed and the masses were confirmed as lymphoma by histopathology. Microscopically, the mass consisted of unencapsulated and infiltrative neoplasm consisted of closely packed monomorphic round cells and also ininvasive lesions observed in duodenum. On the higher magnification, pleomorphic neoplastic cells with distinct cell border and abundant eosinophilic cytoplasm were observed. Finally, the ferret diagnosed as alimentary lymphoma.

Experimental Study on Dynamic Responses of Plate-Girder Bridges under Moving Loads (이동하중을 받는 판형교의 동적 거동에 대한 실험적 연구)

  • Yhim, Sung Soon
    • Journal of Korean Society of Steel Construction
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    • v.12 no.4 s.47
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    • pp.407-416
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    • 2000
  • This paper presents the dynamical responses of the plate girder bridge subjected to moving load by experimental method. The upper slab of the plate girder bridges is modelled to the plate element and the girder to the beam element. The small-scaled vehicle model is manufactured as moving load and the acryl-bridge model as the plate-girder bridge. The dynamic responses of the plate-girder bridges under the moving load are obtained by the strain gauges, displacement measurements, accelerometer, and dynamic strain measurement. The maximum dynamic responses from the measured data are compared with those from the finite element method. The experimental model test can be used to obtain to the dynamic responses of the plate-girder bridges.

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Experimentally Minimized Contaminative Condition of Carbonaceous Artifacts in Transmission Electron Microscope (투과전자현미경에 타소질 불순물의 오염 최소화를 위한 실험 조건)

  • Kim, Young-Min;Choi, Joo-Hyoung;Song, Kyung;Kim, Yang-Soo;Kim, Youn-Joong
    • Applied Microscopy
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    • v.39 no.1
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    • pp.73-77
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    • 2009
  • Contaminative artifacts such as carbonaceous materials on carbon-coated microgrids are unavoidable, which is induced by electron beam exposure inside electron microscopes. This phenomenon raise a source to produce confusing information to the samples investigated by analytical TEM, which should be alleviated as much as possible. As experimental precautions for reducing this unwanted effect, the use of $LN_2$ cooled anti-contaminator and pre-illumination of electron beam at low magnification can be helpful. Nevertheless, we should be cautious to set an illumination condition for microanalysis because the contaminative effect is dependent with the types of irradiation situations, which is well known to be a decisive factor for causing the carbonaceous artifacts. Accordingly, it is necessary that optimal illumination to minimize the contaminative effect should be selected for improving the accuracy of microanalysis. In this paper, we introduce the practical method to determine the optimal illumination condition by evaluating the contaminative effect as a function of instrumental spot size, which is directly linked with electron current density.

Comparative study on alveolar bone height of pantomography and multi planar reformatted computed tomography (파노라마방사선사진과 다면상재구성 CT상의 치조골 높이 계측에 대한 비교 연구)

  • Ji Jung-Hyun;Lee Sang-Rae;Lee Byung-Do
    • Imaging Science in Dentistry
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    • v.34 no.3
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    • pp.159-164
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    • 2004
  • Purpose: To compare alveolar bony height of pantomograph with bony height of thin slice, multiplanar reformatted (MPR) Computed Tomograph. Materials and Methods : Panoramic radiograms of 12 young adult patients had been taken by one radologic technitian and the measurements were corrected by magnification ratio (1.20). The slice thickness of Multi-detector Computed Tomography (CT) was at least 1mm for the accuracy. The raw CT datas were imported into the V-works 4.0 (CyberMed Corp., Seoul, Korea) and transformed to MPR images. Pantomographic measurements of alveolar bone were compared to CT values by average mean bony height measurements for the accuracy. Inter-, and Intra-observer variability was evaluated. Results : There was no significant differences between height measurement of pantomography and that of CT (P>0.05). There were no significant differences in either inter-or intra-observer measurements (P>0.05). Conclusion : Pantomography showed relatively high accuracy and precision in measuring alveolar bony height.

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