• Title/Summary/Keyword: Pattern-growth method

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Dress Design Analysis and Pattern Making Techniques for Increasing the Efficiency of Dress Production (드레스 디자인 분석과 드레스 생산의 효율성을 위한 패턴제작법 활용)

  • Sanghee Lee;Sookhee Kwon
    • Human Ecology Research
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    • v.61 no.1
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    • pp.53-71
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    • 2023
  • Dressmaking is a high value-added sector of the fashion industry in which the individuality and skills of designers play a prominent role. The appropriate use of the draping and the flat pattern techniques in the dressmaking process also play an important part in perfecting the finished product. The purpose of this study was to improve the understanding of dress design and identify a pattern production technique to enhence efficiency in each of the three elements of the dress manufactureing process. For this purpose, analysis of the design of 1,389 wedding dress photographs published in Wedding 21, Korea's leading wedding magazine, during 2019 and 2020 was conducted. This analysis identified 15 bodice designs and 11 sleeve designs based on neckline and eight skirts based on silhouette which were ranked by frequency distribution. Patterns for the design of samples were then developed according to the highest combined frequency distribution of these three elements. Eight samples were finally produced to test the the efficiency of the patternmaking techniques empolyed and the selected designs. The findings from this study have practical applications, notably in improving the efficiency of pattern production techniques that will facilitate further growth in the dressmaking industry.

The Pattern of Urban Growth and Measurement of Spatial Structural Change in Daejeon Metropolitan City (대전광역시 도시성장 패턴과 공간구조 변화 측정)

  • Kim, Houng-Tae;Kim, Sang-Soo;An, Sang-Hyun
    • Journal of Korean Society for Geospatial Information Science
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    • v.17 no.3
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    • pp.41-48
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    • 2009
  • This study investigated the characteristics of spatial expansion/centralization and the spatial structural change of urban. The data used in analysis were urban population, employment, building floor area, and land price. The analysis was performed for the data of 1995, 2000, and 2005 during 10 years after 1995. The method of research was as follows; The movement of mean center and standard distance/standard deviation ellipse was estimated to investigate the urban growth change. The result of Moran's I analysis showed a clustered pattern, not a dispersed pattern, however; the effect was not significant. The town area requires the well-ordered urban planning such as land use. The contours map demonstrates that a monopole structure was generally transformed into a multicentralization structure. The development of mutural connection axis among central street roads was fragile.

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Population Structure, and Emergence and Growth Dynamics of Seedling, and Spatial Distribution of Dendropanax morbifera Lev.(Araliaceae) (황칠나무의 집단구조와 치수의 발생과 생육동태 및 공간분포)

  • 정재민
    • Korean Journal of Plant Resources
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    • v.11 no.3
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    • pp.345-352
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    • 1998
  • A Korean endemic and evergreen small tree ' Dendropanax morbifera $L_{EV}$.(Araliaceae)' is a component of evergreen forest and mainly idstributein sourthern region and islands in Korea. A local population of D. morbifera which is located between evergreen and deciduous forest within 50m x 50m quadrate was investigated to ascertain the change of population structure, emergence and growth dynamics of seedlings and saplings, and pattern of spatial distribution by the temproal and spatial expansion of population . The result of analysis of population structure by Importnace Value(IV), evergreen forest showed a high species diversity of evergreen tree species such as Cinnamomum japonicum, Machilus japonica, Neolitsea serica, Daphniphyllum macropodum, Ligustrum japonicum, and etc, in middle and under story than in upper story where Camelia japonica and Quercus acuta were dominant. And in conterminous deciduous fores, the major component of evergreen forest in this region, Camellia japonica, Quercus acuta, evergreen tree of Lauraceae and etc. were abundant in only under story. IV of D. morbifera differed from among three story. In comparative analysis of emergence and growth dynamics of D. morbifera seedlings and saplings between evergreen and deciduous forest, emergece and density of seedlings were significantly greater in evergreen than in deciduous forest, and growth of height and basal diameter of seedlings and saplings were slightly larger in evergreen than in deciduous forest. The spatial distribution patterns by Moristia's index mapping of indivuduals using a lattice method of XY axis within this population showed that seedlings(age up to 2 years) and saplings (age>2 years and height<1m) both evergreen and deciduous forest were more or less aggregated apart from mature trees, and thougth intermediate trees(height>1m and dbh<10cm) had a aggregated distribution pattern, mature trees(dbh>10cm were uniform. In conclusion , the expansion of D. morbfera population from evergreen to deciduous forest accompanied with a mumber of evergreen woody species, and also, emergence and recruitment, and growth of seedlings were greatly influenced moisture and canopy by around community structure.

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A new crystallization method using a patterned $CeO_2$ seed layer on the plastic substrate

  • Shim, Myung-Suk;Kim, Do-Young;Seo, Chang-Ki;Yi, Jun-Sin;Park, Young-Soo
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.1007-1010
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    • 2004
  • We report crystallization of a-Si using XeCl excimer laser annealing [1] on the plastic substrate. We tried to obtain higher crystallinity as the effect of $CeO_2$ seed layer patterned. Also, we tried to control the direction of crystallization growth of silicon layer for lateral growth as the type of $CeO_2$ pattern. This crystallization method plays an important role in low temperature poly-Si (LTPS) [2] process and flexible display.

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Characteristics of Ambient Gas for Bi-Superconductor Thin Films Growth (Bi 초전도 박막 성장을 위한 분위기가스의 특성)

  • Lim, Jung-Kwan;Park, Yong-Pil;Jang, Kyung-Uk;Lee, Hee-Kab
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2005.07a
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    • pp.587-588
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    • 2005
  • Ozone is useful oxidizing gas for the fabrication of BSCCO thin films. In order to obtain high quality oxide BSCCO thin films, higher ozone concentration is necessary. The growth rates of the films was set in the region from 0.17 to 0.27 nm/min. MgO(100) was used as a substrate. In this paper oxidation property was evaluated relation between oxide gas pressure and inverse temperature(CuO reaction). The obtained condition was formulated by the fabrication of Cu metal thin film by co-deposition using the Ion Beam Sputtering method. Because the CuO phase peak appeared at the XRD evaluation of the CuO thin film using ozone gas, this study has succeeded in the fabrication of the CuO phase at $825^{\circ}C$.

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Effects of seed orientation on the growth behavior of single grain REBCO bulk superconductors

  • Lee, Hee-Gyoun
    • Progress in Superconductivity and Cryogenics
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    • v.19 no.2
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    • pp.9-13
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    • 2017
  • This study presents a simple method to control the seed orientation which leads to the various growth characteristics of a single grain REBCO (RE: rare-earth elements) bulk superconductors. Seed orientation was varied systematically from c-axis to a-axis with every 30 degree rotation around b-axis. Orientations of a REBCO single grain was successfully controlled by placing the seed with various angles on the prismatic indent prepared on the surface of REBCO powder compacts. Growth pattern was changed from cubic to rectangular when the seed orientation normal to compact surface was varied from c-axis to a-axis. Macroscopic shape change has been explained by the variation of the wetting angle of un-reacted melt depending on the interface energy between $YBa_2Cu_3O_{7-y}$ (Y123) grain and melt. Higher magnetic levitation force was obtained for the specimen prepared using tilted seed with an angle of 30 degree rotation around b-axis.

Numerical Analysis on the Flow Pattern in the Melt of Cold Model for the Czochralski system

  • Kim, Min-Cheol;Lee, Sang-Ho;Yi, Kyung-Woo
    • Proceedings of the Korea Association of Crystal Growth Conference
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    • 1998.09a
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    • pp.113-116
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    • 1998
  • A numerical study was performed on the fluid flow in the melt of the cold model for Czochralski growth system. The fluid flow in the melt of Woods metal with crucible diameter of 20cm was calculated using a three dimensional finite difference method. Since the crucible size is large, fully turbulent model as well as laminar model was used in the calculation. The effects of crucible rotation rate, crystal rotation rate and wall temperature difference on the velocity and temperature distribution were also investigated. For the purpose of verifying the results of calculation, a cold model experiment using Woods metal was also conducted and the velocity distribution in the melt of the model was measured.

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Evalustion and Prediction for the Fatigue crack Initiation and Growth Life by Reliability Approach (I) -Statistical Consideration for Fatigue Crack Growth Life- (신뢰성 공학적 피로 균열의 발생, 진전 수명 평가 및 예측에 관한 연구 ( I ) -피로 균열 진전 수명의 통계학적 분포 특성-)

  • 권재도;최선호;황재석;곽상국;전경옥;장재영
    • Transactions of the Korean Society of Mechanical Engineers
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    • v.14 no.6
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    • pp.1583-1591
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    • 1990
  • Life prediction and residual life prediction of structures of machines are one of the most strongly world wide needed problems as requirement in the stage of slowly developing economy which comes after rapidly and highly developing stage. For the purpose of statistical life prediction, fatigue test was conducted under the 4 stress levels, and for each stress level, about 20 specimens are used. The statistical properties of crack growth parameter m and C in the fatigue crack growth law of da/dN=C(.DELTA.K)sup m/, and the relationship between m and C, and the statistical distribution pattern of fatigue crack growth rate can be obtained by experimental results.

Apatite Single Crystal Growth by FZ Method (FZ법에 의한 Apatite 단결정 성장)

  • 강승민;신재혁;한종원;최종건;전병식;오근호
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.3 no.2
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    • pp.93-98
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    • 1993
  • In the ternary system of $CaF_2-CaO-P_2O_5$. Apatite$(Ca_{10}(PO_4)_6F_2)$ single crystal having a congruent point was grown by FZ process. The atmospheric condition was kept by oxygen blowing. Adjusting the growth parameters of rotation rate, growth rate and gas amount, we tried to find the optimum growth condition. By partly substituting Ca as Co element, the absorption of infrared is increased and the color effect was observed. Using the Laue back reflection, XRD and FTIR analysis, the characterization of the crystal was carried out.

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Comparison of Multilevel Growth Models for Respiratory Function in Patients with Tracheostomy and Stroke using Cervical Range of Motion Training

  • Kim, SoHyun;Cho, SungHyoun
    • Physical Therapy Rehabilitation Science
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    • v.10 no.3
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    • pp.328-336
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    • 2021
  • Objective: The purpose of this study was to investigate the effect of cervical range of motion training on the change in respiratory function growth rate at the group and individual level in stroke patients and stroke patients with tracheostomy tube. Design: A Multilevel Growth Model Methods: 8 general stroke patients and 6 stroke patients who had a tracheostomy tube inserted were subjected to cervical range of motion training 3 times a week for 4 weeks. Force vital capacity (FVC), Forced expiratory volume in the first second (FEV1), Forced expiration ratio (FEV1/FVC) and Manual assist peak cough flow (MPCF) were measured. Data were analyzed using descriptive statistics and multilevel analysis with HLM 8.0. Results: A significant difference was found in the respiratory function analysis growth rate of the entire group (p<0.05), and two groups were added to the research model. The linear growth rate of respiratory function in patients with general stroke increased with the exception of FEV1/FVC (p<0.05). Stroke patients with tracheostomy tube showed a decreasing pattern except for FVC. In particular, MPCF showed a significantly decreased result (p<0.05). Conclusions: This study found that the maintenance of improved respiratory function in stroke patients with tracheostomy tube decreased over time. However, cervical range of motion training is still a useful method for respiratory function in general stroke patients and stroke patients with tracheostomy tube.