• Title/Summary/Keyword: Resistance value

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The effects of Clothing Materials and Multi-layered Textiles on Thermal Resistance Value (보온력에 미치는 피복재료와 겹침의 영향)

  • 손원교;차옥선
    • Journal of the Korean Home Economics Association
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    • v.37 no.11
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    • pp.157-165
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    • 1999
  • This study was carried out to examine the effect of clothing materials and multi-layered textiles on thermal resistance value. Cotton, polyester, wool, silk, rayon and acetate were selected for the specimens. Thermal resistance value was tested with 2 kinds of methods(thermo labo II and BK type tester). The results were as follows; 1. The effects of clothing materials for thermal resistance value were decreased by adding layers. 2. When the fabrics are measured with multiple layers, the fabric of the lowest thermal resistance value at single layer was showed the highest increasing tendency for all test methods.

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Innovation resistance and adoption regarding a virtual reality motion-sensing input device (가상현실 모션센싱 입력장치에 대한 혁신 저항과 수용)

  • Park, Hyun-jung;Choi, Jaewon;Shin, Kyung-shik
    • Knowledge Management Research
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    • v.16 no.4
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    • pp.191-213
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    • 2015
  • With the advancement of virtual reality technology, virtual reality contents and devices are being competitively released. This research deals with an early stage adoption model of a motion-sensing input device which enhances the user experience of these virtual reality contents and devices. In contrast to the previous research on the adoption or resistance of innovative products, this work compares and analyzes the antecedents in MIR(Model of Innovation Resistance) of resistance-perspective as well as those in UTAUT2(Extended Unified Theory of Acceptance and Use of Technology) and IDT(Innovation Diffusion Theory) of adoption-perspective, and suggests a resistance-incorporated adoption model from a new viewpoint. The analysis of questionnaire data indicates the following results: Performance expectancy, effort expectancy, price value, hedonic motivation in UTAUT2 and visibility in IDT have a significant negative influence on innovation resistance. Compatibility in IDT and MIR exerts a positive influence on perceived value. Social influence and hedonic motivation in UTAUT2 positively relates to perceived value. Higher innovation resistance results in lower perceived value, with innovation resistance and perceived value negatively and positively affecting intention to use, respectively.

The Relation between the Sectional Form of the Shio and the Wave Resistance (船體斷面形狀(船體斷面形狀)과 조파저항(造波抵抗)과의 관계(關係))

  • Chung, Jung-Han
    • Bulletin of the Society of Naval Architects of Korea
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    • v.12 no.1
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    • pp.41-46
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    • 1975
  • This paper was intended to compare the relationship between sectional form of ships and wave making resistance by calculating the resistance value practically rather than theoretically. As the sectional form of ships, four types of quadratic ship forms was introduced and he wave making resistance was calculated by the Slender Ship Theory. The main result obtained in this paper is the following. The relationship between the displacement distribution of draught direction in the given sectional form of ships and the resistance value was shown. It was supposed that the resistance value will decrease with the increase of the displacement distribution of draught direction and it was proved by the numerical value.

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A Study on the Factors of Intention of Continued Use of the Convenient Payment Service: The Perspectives of the Flow, the Reliability and the Innovative Resistance (간편결제 서비스의 지속사용의도에 영향을 미치는 요인에 관한 연구: 플로우, 신뢰 및 혁신저항을 중심으로)

  • Son, Dal Ho
    • The Journal of Information Systems
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    • v.30 no.1
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    • pp.1-20
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    • 2021
  • Purpose The purpose of this study is to deduct the motivative factors such as perceived value, trust, innovative resistance and flow from the pervious studies and to examine the effect of the motivative factors in the continued use of convenient payment service. Design/methodology/approach This study made a design of the research model by integrating the factors deducted from the Value-based Adoption Model and the Innovative Resistance Model with the factors deducted from the Flow Theory. Findings Results showed that perceived value had a significant effect on trust and innovative resistance. Moreover, trust had a significant effect on flow and continued use. Finally, innovative resistance and flow had a significant effect on continued use. However, the research model in this study was derived from a behavioral point of view, therefore, this model needs to combine the various factors of related fields.

Determination of Design Parameters from Ground Investigation Results -Focus on geotechnical characteristic values- (지반조사결과에서 설계변수의 결정문제 -지반특성치 산정을 중심으로-)

  • Yoon, Gil-Lim;Yoon, Yeo-Won;Kim, Hong-Yeon
    • Proceedings of the Korean Geotechical Society Conference
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    • 2008.10a
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    • pp.126-133
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    • 2008
  • Geotechnical limit state design methods; LRFD of North America is an approach that estimates resistance using design model and then multiplies resistance factor by calculated resistance to reflect the uncertainty of geomaterials and design models; whereas, Eurocode of the Europe employs the partial resistance factor applied directly to each variable in the resistance equation that individual soil properties such as cohesion and angle of internal friction are applied. This discussion paper is a study on characteristic value which has globally been argued through processing of development of Eurocode 7 for geotechnical design even to the present. Estimating the characteristic value of soil properties affects not only determination of design value applied directly to design of geotechnical structures, but also economic feasibility and stability of the structures.

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The Study on Tree Vigor of Damaged Forest by Thecodiplosis japonensis Uchida et Inouye (솔잎혹파리 피해임지의 수세변동에 관한 연구)

  • Lee, Chan-Yong;Chae, Hee-Mun;Kim, Jong-Kuk
    • Journal of Forest and Environmental Science
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    • v.16 no.1
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    • pp.34-41
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    • 2000
  • This study investigated tree vigor of damaged forest by Thecodiplosis japonensis Uchida et Inouye. In damaged forest by pine gall midge, the investigation result of damaged rate section (severe, moderate, light) indicated that severe stand showed higher value of electric resistance ($k{\Omega}$) than that of light stand, the investigation result of tree density section(crowed, middle, little) indicated that crowed stand showed higher value of electric resistance than that of little stand (the value of electric resistance at which low reading show high vigor tree and high reading low vigor tree). The crown width and DBH (diameter of breast height) of external factors showed lower value of electric resistance than that of small size. The results of comparative between Crown area and value of electric resistance in each stand were $13.4m^2$ in severe stand, $10.9m^2$ in moderate stand and $7.9m^2$ in light stand. Therefore, the tree which have big crown showed low value of electric resistance (below $15k{\Omega}$)that has high possible of survial.

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A Study on Influencing Factors on User's Adoption Resistance to Personal Cloud Computing Service (개인용 클라우드 컴퓨팅 서비스 수용저항에 영향을 미치는 요인에 관한 연구)

  • Jo, In-Jea;Kim, Sun-Kyu;Yang, Sung-Byung
    • Knowledge Management Research
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    • v.16 no.1
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    • pp.117-142
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    • 2015
  • Recently, the personal cloud computing service has been being spotlighted as an individual tool of productivity enhancement. However, compared to the rosy forecast, its diffusion rate in the domestic (Korean) market is much slower than expected. In order to find the reason for the slow growth of personal cloud computing service, we attempt to identify influencing factors on user's adoption resistance, while most prior research has focused on the factors affecting its adoption. Based on both the person-technology fit model and the privacy calculus model, we propose technostress and perceived value as key antecedents of adoption resistance. In addition, we identify (1) technical (pace of change and complexity) and personal (self-efficacy) influencing factors on technostress, and (2) beneficial (perceived mobility and perceived availability) and harmful (perceived vulnerability) influencing factors on perceived value. To validate our research model, 133 individual samples were gathered from undergraduate and graduate students who had actual experience of using at least one of personal cloud computing services. The results of the structural equation modeling confirm that both technostress and perceived value have significant effects on adoption resistance, but they have different influencing mechanisms to different types of adoption resistance (indifference, postponement, and rejection). Theoretical and practical contributions are discussed in the conclusion.

A Study on Grounding Resistance by Parallel Connection (병렬 접속에 의한 접지저항에 관한 연구)

  • 고희석;최종규;류희석;김주찬
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2002.11a
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    • pp.307-312
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    • 2002
  • For accuracy of an experiment, measure changing of grounding resistance by short period after construction and investigated the efficiency of grounding's different methode of parallel connection. We could confirm on measurement's accuracy, error through comparing the theoretical value and measured value. Therefore, reduction ratio can be expected from execution measurement to receive a target resistance value. By the result, we could evaluate the method of rod grounding electrode's proper execution

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Reduction of Cake Resistance by Floc Reaggregation in a Membrane-Feed-Pipe (관내 입자 재응집에 의한 케이크 저항의 감소)

  • KIM, Taeyoung;PARK, Heekyung
    • Journal of Korean Society of Water and Wastewater
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    • v.21 no.6
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    • pp.717-726
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    • 2007
  • Fully-grown flocs in a mixing tank of membrane filtration with dead-end membrane are ruptured while passing through a pump and the ruptured flocs are aggregated again in a Membrane-Feed-Pipe (MFP). To look at more details, this study tries to relate the reaggregation to a parameter of mixing intensity in MFP, i.e., G-value. The G-value is a function of Reynolds number, pipe diameter, friction factor and average velocity in MFP. To deal with polydispersity condition, we develop a representative particle size called in this study EDPD (Effective Diameter for Polydispersity condition in Dead-end filtration). The experimental results show that as the G-value increases, the EDPD decreases and also the cake resistance increases. Through comparison between EDPD and cake resistance, these results show that cake resistances are controlled by reaggregation phenomenon in MFP. The effect of detention time in MFP, however, does not affect the reaggregation of the broken flocs as G-values are increased.

Uncertainty in Potentiodynamic Polarization Resistance Measurement (동전위 분극저항 측정에서의 불확도)

  • Kim, Jong Jip
    • Corrosion Science and Technology
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    • v.8 no.5
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    • pp.193-196
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    • 2009
  • For the estimation of uncertainty in potentiodynamic polarization resistance measurement, the type A uncertainty was measured using type 316 stainless steel in an acidified NaCl solution. Sensitivity coefficients were determined for measurand such as scan rate of potential, temperature of solution, concentration of NaCl, concentration of HCl, surface roughness of specimen and flow rate of purging gas. Sensitivity coefficients were large for the measurand such as the scan rate of potential, temperature of solution and roughness of specimen. However, the sensitivity coefficients were not the major factors influencing the combined standard uncertainty of polarization resistance due to the low values of uncertainty in measurements of the measurands. A major influencing factor was the concentration of NaCl. The value of type A uncertainty was 1.1 times the value of type B uncertainty, and the combined standard uncertainty was 10.5 % of the average value of polarization resistance.