• Title/Summary/Keyword: tolerance analysis

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The Influence of Aesthetic Surgery Attitude, Self-Esteem and Body Image on Clothing Behavior (성형태도, 자아존중감, 신체이미지와 의복행동간의 관계)

  • Chung, Mi-Sil;Lee, Keum-Sil
    • Journal of the Korean Home Economics Association
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    • v.45 no.7
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    • pp.131-140
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    • 2007
  • The purpose of this study was to examine the influence of aesthetic surgery attitude, self-esteem and body image on clothing behavior. Subjects were 356 female college students in Seoul. The data obtained were analyzed by reliability analysis, factor analysis, correlation analysis, stepwise multiple regression analysis and t-test. The major results of this study were as follows: First, five factors of aesthetic surgery attitude were identified: risk tolerance of aesthetic surgery, need of aesthetic surgery, image improvement via aesthetic surgery, keeping the secret of aesthetic surgery, and others' expectation of aesthetic surgery. Second, significant relationships were found between body image and clothing behavior, and self-esteem and body-enhancement of clothing. Also, risk tolerance of aesthetic surgery, need of aesthetic surgery, and image improvement via aesthetic surgery had a significant correlation with clothing behavior. Third, the most important variable which affected the aesthetics and body-enhancement of clothing was body image. The entertainer imitation behavior of clothing was influenced by need of aesthetic surgery, body image, keeping the secret of aesthetic surgery, risk tolerance of aesthetic surgery, and image improvement via aesthetic surgery. Preference for luxury goods of clothing was influenced by need of aesthetic surgery and body image. Body-enhancement of clothing was influenced by body image, image improvement via aesthetic surgery, and self-esteem.

The Effects of Uncertainty Tolerance on Attitude toward Business Start-up Trying (불확실성에 대한 인내력이 창업시도태도에 미치는 영향)

  • Ha, Hwan Ho;Byun, Chung Gyu
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.10 no.4
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    • pp.167-175
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    • 2015
  • This study examined the linkage between uncertainty tolerance and attitude toward trying business start-up. Uncertainty tolerance can classify by degrees of uncertainty as risk and ambiguity. We examined the effects of risk tolerance and ambiguity tolerance on attitudes toward trying success and failure. And we also examined the effect of attitudes toward trying success and failure on business start-up trying. This study investigated these relationships using 173 under graduate students. The result of analysis indicated that the risk tolerance had positive effects on attitude toward trying failure, but it had not any effect on attitude toward success and process. The ambiguity tolerance has positive effects on attitude toward trying failure and trying process, but it had not any effect on attitude toward success. The attitudes toward trying success, trying failure, and trying process had positive effect on attitude toward business start-up trying. Then results of this study suggests that the uncertainty(risk and ambiguity) tolerance showed a role of antecedent of attitudes toward trying success and failure. Finally, this study concluded with a discussion of the implications of the research findings and directions for future research.

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Comparative Tests on the Acid Tolerance of Some Lactic-Acid-Bacteria Species Isolated from Lactic Fermented Products (젖산 발효제품에서 분리한 유산균의 내산성 비교)

  • Sim, Jae-Hun;Oh, Se-Jong;Kim, Sang-Kyo;Baek, Young-Jin
    • Korean Journal of Food Science and Technology
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    • v.27 no.1
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    • pp.101-104
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    • 1995
  • We isolated sixty lactic acid bacteria(LAB) from lactic fermented products. Among 60 isolates of LAB, 30 isolates were identified as Lactobacillus casei ssp.(5 strains), Lactobacillus acidophilus(2 strains), Lactobacillus delbrueckii ssp. bulgaricus(6 strains), Lactobacillus plantarum(4 strains), Streptococcus salivarius ssp. thermophilus(11 strains), and Streptococcus faecalis(2 strains). The acid tolerance and bile resistance of 30 LAB were determined. Because the acid tolerance was affected by the initial cell concentrations, the analysis of covariance could be used to remove the effect of initial cells on acid tolerance when testing for differences in acid tolerance among six species. Viability of LAB under acidic condition, pH 3 for 2 hours at $37^{\circ}C$, was significantly different among the species. L. casei and L. acidophilus strains showed great viability, but L. bulgaricus and S. thermophilus strains were very weak in acid tolerance.

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The Effect of Distress Tolerance on Subjective Well-Being: Mediating Effect of Experiential Avoidance (고통 감내력이 주관적 안녕감에 미치는 영향 : 경험회피의 매개효과)

  • Young-Rea Park;Seong-Ho Cho
    • Korean Journal of Culture and Social Issue
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    • v.24 no.1
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    • pp.49-62
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    • 2018
  • The purpose of this study is to examine the effect of distress tolerance on subjective well-being and the mediating effect of experiential avoidance in the relationship between distress tolerance and subjective well-being. We conducted an online survey a total of 285 normal adults in the nation from October 21 to 24, 2015. The questionnaire was composed of a distress intolerance index, a concise measure of subjective well-being, and acceptance action questionnaire. And questionnaires were distributed and retrived by an online survey company. Collected data has been analyzed by the structural equation modeling. The correlation analysis showed that distress tolerance was positively correlated with subjective well-being, while negatively with experiential avoidance. Also, the verification of mediating effects of experiential avoidance in the relation between distress tolerance and subjective well-being indicated that experiential avoidance partly mediated the relationship at a meaningful level. Additionally, deflection correction bootstrap analysis was used to verify indirect effects and its results revealed that the mediating effect going from distress tolerance to subjective well-being passing through experiential avoidance was statistically significant. That is, distress tolerance not only influences subjective well-being directly but also influences indirectly through experiential avoidance. Finally, significance and limitations of this study were discussed along with the suggestions for further research.

Selection of Transgenic Potato Plants Expressing NDP Kinase 2 Gene with Enhanced Tolerance to Oxidative Stress (NDP Kinase 2 유전자를 도입한 산화스트레스 내성 형질전환 감자의 선발)

  • Li, Tang;Kwon, Suk-Yoon;Yun, Dae-Jin;Kwak, Sang-Soo;Lee, Haeug-Soon
    • Journal of Plant Biotechnology
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    • v.31 no.3
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    • pp.191-195
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    • 2004
  • Arabidopsis NDPK2 (AtNDPK2) is a key singaling component that regulate cellular redox state and known to enhance multiple stress tolerance when over-expressed in Arabidopsis plant (Moon et al. 2003). In order to develop transgenic potato plants with enhanced tolerance to multiple stresses, we placed an AtNDPK2 cDNA under the control of a stress-inducible SWPA2 promoter or enhanced CaMV 35S promoter. Transgenic potato plants (cv. Superior and Atlantic) were generated using an Agrobacterium-mediated transformation system and selected on MS medium containing 100 mg/L kanamycin. Genomic Southern blot analysis confirmed the incorporation of AtNDPK2 cDNA into the potato genome. When potato leaf discs were treated with methyl viologen (MV) at 10 $\mu$M, transgenic plants showed higher tolerance to MV than non-transgenic or vector-transformed plants. The NDPK2 transgenic potato plants will be further used for analysis of stress-tolerance to multiple environmental stresses.

Selection of Transgenic Potato Plants Expressing Both CuZnSOD and APX in Chloroplasts with Enhanced Tolerance to Oxidative Stress (CuZnSOD와 APX를 엽록체에 발현시킨 산화스트레스 내성 형질전환 감자의 선발)

  • Tang, Li;Kwon, Suk-Yoon;Sung, Chang-K;Kwak, Sang-Soo;Lee, Haeng-Seoon
    • Journal of Plant Biotechnology
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    • v.31 no.2
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    • pp.109-113
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    • 2004
  • In order to develop transgenic potato plants with enhanced tolerance to multiple stress, we constructed the transformation vector expressing both superoxide dismutase and ascorbate peroxidase genes in chloroplasts under the control of a stress-inducible SWPA2 promoter. Transgenic potato plants (cv. Superior and Atlantic) were generated using an Agrobacterium-mediated transformation system. Transgenic potato plants were regenerated on MS medium containing 100mg/L kanamycin. Genomic Southern blot analysis confirmed the incorporation of foreign genes into the potato genome. When potato leaf discs were subjected to methyl viologen (MV) at 10 $\mu$M, transgenic plants showed higher tolerance than non-transgenic or vector-transformed plants. To further study we selected the transgenic plant lines with enhanced tolerance against MV. These plants will be used for further analysis of stress-tolerance to multiple environmental stresses.

A Study on Taguchi and VTA Methods for Product Design (제품설계를 위한 다구찌 방법과 VTA방법에 관한 연구)

  • 장현수;김용범;김우열
    • Journal of the military operations research society of Korea
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    • v.27 no.1
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    • pp.101-113
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    • 2001
  • Taguchi and VTA(variation Transmission Analysis) methods have been widely used recently as new methods for product design. In this study, Taguchi method using analysis of variance and VTA method using regression analysis are reviewed and compared with each other in terms of parameter design and tolerance design. In analysis of variance, variation of quality characteristics arises from noise factors, therefore the optimal levels of design factors are selected to minimize the effect of noise factors. n regression analysis, variation of quality characteristics arises from variation of each own design factors. As a method to reduce variation of these quality characteristics, sensitivity analysis was performed for each design factors. An example of calculating tolerance interval for the given defect rate in PPM is also introduced. Especially, the new method is suggested to increase the estimation accuracy of variation of quality characteristics through regression analysis.

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Relationship between Surface Sag Error and Optical Power of Progressive Addition Lens

  • Liu, Zhiying;Li, Dan
    • Current Optics and Photonics
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    • v.1 no.5
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    • pp.538-543
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    • 2017
  • Progressive addition lenses (PAL) have very wide application in the modern glasses market. The unique progressive surface can make a lens have progressive refractive power, which can meet the human eye's different needs for distance-vision and near-vision. According to the national glasses fabrication standard, the difference between actual optical power after fabrication and nominal design value should be less than 0.1D over the lens effective area. The optical power distribution of PAL is determined directly by the surface. Consequently, the surface processing accuracy requirement is proposed. Beginning from the surface expressions of progressive addition lenses, the relationship equations between the surface sag and optical power distribution are derived. They are demonstrated through tolerance analysis and test of an example progressive addition lens with addition of 2.09D (5.46D-7.55D). The example addition surface is fabricated under given accuracy by a single-point diamond ultra-precision machine. The optical power of the PAL example is tested with a focal-meter after fabrication. The optical power addition difference between test result and design nominal value is 0.09D, which is less than 0.1D. The derived relationship between the surface error and optical power is verified from the PAL example simulation and test result. It can provide theoretical tolerance analysis proof for the PAL surface fabricating process.

Mirrors and Optomechanical Structures Design and Analysis for Linear Astigma-tism Free Three Mirror System (LAF-TMS)

  • Park, Woojin;Hammar, Arvid;Lee, Sunwoo;Chang, Seunghyuk;Kim, Sanghyuk;Jeong, Byeongjoon;Kim, Geon Hee;Kim, Daewook;Pak, Soojong
    • The Bulletin of The Korean Astronomical Society
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    • v.43 no.2
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    • pp.55.4-56
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    • 2018
  • Linear Astigmatism Free - Three Mirror System (LAF-TMS) is the linear astigmatism free off-axis wide field telescope with D = 150 mm, F/3.3, and $FOV=5.51^{\circ}{\times}4.13^{\circ}$. We report the design and analysis results of its mirrors and optomechanical structures. Tolerance allowance has been analyzed to the minimum mechanical tolerance of ${\pm}0.05mm$ that is reasonable tolerance for fabrication and optical alignment. The aluminum mirrors are designed with mounting flexure features for the strain-free mounting. From Finite Element Analysis (FEA) results of mounting torque and self-weight, we expect 33 - 80 nm RMS mirror surface deformations. Shims and the L-bracket are mounted between mirrors and the mirror mount for optical alignment. The mirror mount is designed with four light-weighted mechanical parts. It can stably and accurately fix mirrors, and it also suppresses some of stray light.

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Fault Tolerance Operation and Characteristics Analysis of Asymmetric Six-phase Permanent Magnet Synchronous Motor According to Switch Open (비대칭 6상 영구자석 동기 전동기의 스위치 개방에 따른 특성 분석 및 고장허용운전)

  • Jun, So-Young;Hwang, Seon-Hwan;Park, Jong-Won
    • Journal of the Korean Society of Industry Convergence
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    • v.25 no.6_2
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    • pp.1003-1008
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    • 2022
  • This paper proposes a method related to fault tolerance operation and characteristic analysis of asymmetric 6-phase permanent magnet synchronous motor. In general, motor drive systems with multi-phase structures can be continuously operated despite a reduction of power and speed by using a phase changeover or control techniques according to the failures. As a result, it is widely used in industrial fields such as aviation and defense, which require high efficiency and high reliability. In this paper, the second order ripple of the electrical fundamental freuqnecy occurs in the dq-axis currents of the synchronous coordinate system through mathematical analysis according to the switch open of the dual 3-phase inverter. Therefore, the fault tolerant operation method is presented by applying the fault detection method with a constant cycle for continuous operations. The effectiveness of the proposed fault tolerance operation method is verified through the several experiments.