• Title/Summary/Keyword: Pattern Pair

Search Result 203, Processing Time 0.021 seconds

Characteristics of Electroantennogram Parameters for the Detection of Odorants

  • Yun, Eung-Sik;Ko, Hwi-Jin;Sun, Jong-Hwan;Park, Tai-Hyun
    • Journal of Microbiology and Biotechnology
    • /
    • v.10 no.6
    • /
    • pp.885-888
    • /
    • 2000
  • Electroantennogram(EAG) can be applied to detect odorants since insects have highly specialized olfactory receptors inside their antennae. The characteristics of EAG parameters were investigated for the quantitative measurement of a general odorant using ammonia as a model odorant. The antennae of male silkworm moth, Bombyx mori, were used for the EAG. The electical signal curves generated from a pair of antennae originating from the same silkworm moth were never identical; however, they exhibited a typical type I or type II characteristic curve pattern for every pair of antennae. The correlation between the EAG parameters and the ammonia concentration was analyzed for the type I and type II antennae. The stability of each parameter was also investigated for each type of antenna. The results show the possibility of the quantitative measurement of general odorants using the EAG technique.

  • PDF

A Study on Wake Flow behind a pair of Circular Cylinders with gap (간격을 갖는 원주열의 후류특성에 관한 연구)

  • 김준호;최민선;조대환;이경우
    • Proceedings of the Korean Society of Marine Engineers Conference
    • /
    • 2001.05a
    • /
    • pp.135-139
    • /
    • 2001
  • This experimental study investigates the wake flow behind a pair of cylinders displaced normal to a free stream. In this experiment, the principal aim is to investigate the transition mechanism of the large vortex generating process in the wake having unique vortex shedding pattern. associated with the gap difference between the cylinders. The detailed visualization is carried out using the PIV measurement. The transition mechanism of the large generating vortex is clarified by showing the streak lines. the vorticity and the statistical fluctuating velocity distributions.

  • PDF

A Study on the Change of Heat Transmission Coefficient According to the Degree of Windows Slope (창의 경사도에 따른 열관류율 변화에 관한 연구)

  • 황하진;이경희
    • Journal of the Korean housing association
    • /
    • v.12 no.3
    • /
    • pp.133-140
    • /
    • 2001
  • This study investigated the heat transmission coefficient through the experiment that the skylight, slope window of 60 degree and 30 degree consisted of pair glass and the double window of external window and internal window paper were suitable for heat insulation. As the result of experiment, the heat transmission coefficient of slope window was 1.06 times in the 60 degree, 1.18 times in the 30 degree and 1.31 times in the skylight as a standard lateral window. The heat transmission coefficient in the double window of external window and internal window paper was 3.017$\textrm{㎉}$/$\textrm{m}^2$.hr.$^{\cire}C$. The slope window was not suitable for the prescription by the increase of the heat transmission coefficient, so the user must pay attention to the treatment. This study investigated only the slope window of 12mm and 16mm pair glass and the double window of external window and internal window paper, study on the various pattern of window must be achived in a future.

  • PDF

G-and C-Banding Pattern Analyses of Korean Rodents: I. Chromosome Banding Patterns of Striped Field Mice (Apodemus agrarius coreae) and Black Rats (R. rattus rufescens)

  • Koh, Hung-Sun
    • The Korean Journal of Zoology
    • /
    • v.25 no.2
    • /
    • pp.81-92
    • /
    • 1982
  • G- and C-banding pattern analyses of striped field mice (Apodemus agrarius coreae) using 17 specimens from four localities in Korea revealed that centromeric heterochromatin results in the variation of No. 1 chromosome pair (telocentri $c_telocentric), i.e., centromeric heterochromatin sometimes appeared to be recognized as short arm. G- and C-banding patterns of four black rats (R. rattus rufescens) from two localities in Korea showed that No. 1 chromosome polymorphism (telocentri $c_telocentric) is due to pericentric inversion. In addition, G- and C-banding patterns of black rats mentioned above are idiogrammed.ammed.

  • PDF

A Study on the Synthesis of Dielectric Constant Potential for Arbitrary Inverse Scattering Pattern Using an Iterative Sampling Method (반복 샘플링법을 사용한 임의 역산란 패턴을 위한 유전율 포텐셜 합성에 관한 연구)

  • 남준석;박의준
    • Journal of the Institute of Electronics Engineers of Korea TC
    • /
    • v.40 no.10
    • /
    • pp.150-158
    • /
    • 2003
  • In the beam pattern synthesis problem using line source, the relationship between source distribution function and beam pattern may be represented by Fourier transform pair. In this paper, a general method to synthesize the line source distribution for a desired lobe-like beam pattern is presented by developing the nonlinear inversion method based on an iterative sampling technique. This method can be applied to the synthesis of continuously distributed dielectric constants satisfying the desired inverse scattering coefficient patterns when illuminating by TE-polarized and TM-polarized plane waves to arbitrary dielectric material. Furthermore this method can also be applied to the synthesis of transmission line with arbitrary reflection coefficient patterns. Some bandstop spatial filter and dispersive transmission line filter are illustrated for generality.

The Image of the Stripe Clothes according to Value Contrast Coloration (명도 콘트라스트 배색에 따른 스트라이프 의복 착용자의 이미지 연구)

  • Moon, Ju-Young;Kang, Kyung-Ja
    • The Research Journal of the Costume Culture
    • /
    • v.16 no.6
    • /
    • pp.992-1007
    • /
    • 2008
  • This study was meant to offer the data for predicting the product plan answering the diverse demands for consumers based on the results of analyzing the image and formative property by transforming the stripe patterns. The concrete study way is composed of the collected stimulus centering on the interval of the stripe pattern and value contrast coloration. Consequently 192 stimuli, changed by the pattern direction and pattern interval, clothing style, and contrast coloration, are selected. The experimental materials made for this study are a set of stimuli and response scale. The statistics way used in analysis was factor analysis, ANOVA, dispersion analysis, multiple classification analysis. The results of this study were summed as following. Firstly, In the value contrast, a pair of 27 adjectives were made of attractiveness, activeness, gracefulness, visibility, and tenderness dimension. Secondly, the direction of the pattern, interval, clothing style, and contrast coloration were respectively transformed according to value contrast.

  • PDF

Growth of CdS Single Crystal Thin Films by HWE Method (HWE법에 의한 CdS 단결정 박막의 성장)

  • 양동익;최용대;김진배
    • Journal of the Korean Vacuum Society
    • /
    • v.1 no.3
    • /
    • pp.353-359
    • /
    • 1992
  • 본 연구에서는 HWE 방법에 의하여 GaAs(100) 기판위에 입방정의 단결정 박막을 성장하였다. 성장된 CdS 단결정 박막의 결정구조와 방향을 ECP(electron channeling pattern)로 결정하였다. CdS 박막의 (400)면이 기판과 평행하게 성장됨을 알았다. CdS 박 막의 photoluminescence를 20K에서 측정하였는데, free exception, bound exception 및 donor-acceptor pair에 의한 발광이 관측되었다.

  • PDF

이온토포레시스에 의한 극성약물의 경피흡수 촉진

  • 심창구;김종국
    • Proceedings of the Korean Society of Applied Pharmacology
    • /
    • 1992.05a
    • /
    • pp.62-62
    • /
    • 1992
  • 1.이온토포레시스에 의한 ISP의 경피촙수증가는 단순투과의 약 13배로서 그 증가정도는 전류세기와 약물농도에 비례하였다. 2. 가해주는 $Na^{+}$ 농도가 커질수록 ISP의 flux는 감소하였다. 3. ion-pairing agent률 가하면 ISP의 flux는 감소하는데, 그 감소정도는 TU>SAL>BEN 로서 이는 이 물질들이 ISP와 ion-pair를 형성하는 능력순서와 같았다. 4. ISP용액의 pH증가시 ISP의 flux는 대체적으로 증가하며 그 pattern은 피부의 pKa를 3.5로 가정할 때의 피부해리곡선과 유사하였다. ISP가 광범위한 pH에서 완벽하게 해리된다고 가정할 때 pH증가시 flux증가는 피부해리 증가에 따른 permselectivity 증가에 기인한 것으로 생각되었다.

  • PDF

A Study on Embroidery Design Patterns of Hwal-ot at the National Palace Museum of Korea (국립 고궁박물관 활옷 수본에 관한 연구)

  • Kwon, Hea-Jin;Hong, Na-Young
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.32 no.8
    • /
    • pp.1255-1263
    • /
    • 2008
  • Study on Hwal-ot, woman's wedding robe of the Joseon Dynasty, has been limited to the Princess Bock-on's Hwal-ot and some folk remains. In this study, I tried to identify formative characteristics of Hwal-ot by studying embroidery design patterns in the royal Hwal-ot. On Mar 26, 2007, I inspected total of 15 pieces of embroidery design patterns for Hwal-ot held at the National Palace Museum of Korea. I classified them into three types of Hwal-ot by considering characteristics in embroidery design patterns as well as composition of embroidery design patterns held by the private. For the Hwal-ot embroidery design pattern type I, there is a calligraphy called "Embroidery Design Pattern of Red Long Robe for leo-dong Palace", which is presumed to be the embroidery design pattern of Princess Deok-on, the third daughter of King Sunjo and a little sister to Princess Bock-on. Its patterns are very similar to that of Princess Bock-on's, with similar flower patterns and treasure patterns, as well as overall stripy structure. The Hwal-ot embroidery design pattern type II maintains the same flower patterns and butterfly patterns as in the type I, but does not have the striped decorative. The Hwal-ot embroidery design pattern type III has illustrative design with waves and mountain at the background and a pair of water birds flying around lotus. In particular, the type III design has a nine phoenix pattern at the front part of the robe, illustrating nine baby phoenixes (four in the left, five in the right) under a mother phoenix, which is closer to characteristics found in the Hwal-ot embroidery design patterns at the end of the Joseon dynasty.

Improved Design of High School Girl's Summer Uniform Based on Style Theory

  • Zhang, Ling-Xi;Wang, Jian-Ping
    • International Journal of Costume and Fashion
    • /
    • v.15 no.2
    • /
    • pp.63-77
    • /
    • 2015
  • By means of statistical analysis and module concept, this paper investigated the current situation of high school girl's uniform and put forward its improved design and database establishment. Combined with the survey data, the future design direction and trend of the high school girls' uniform were proposed. By using modular design concept, the uniform is divided into five modules, and a style database has been built. Meanwhile, the parametric pattern database has been completed by using garment CAD system, based on the style database above, which has 42,336 possibilities to assemble a pair of school uniform. Combining with digital sewing techniques and by using computerized embroidery machine, the personalized design of high school girl's summer uniform has been realized. And two simulated case have been given for examples to prove its feasibility. The idea of modular design and parametric design method proposed in this study offer references for establishing the modular design database and parametric pattern database for other types of school uniform and are of relatively high practical and theoretical value.