• 제목/요약/키워드: Resistance value

검색결과 2,568건 처리시간 0.035초

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

  • 손원교;차옥선
    • 대한가정학회지
    • /
    • 제37권11호
    • /
    • pp.157-165
    • /
    • 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.

  • PDF

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

  • 박현정;최재원;신경식
    • 지식경영연구
    • /
    • 제16권4호
    • /
    • pp.191-213
    • /
    • 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.

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

  • 정정환;
    • 대한조선학회지
    • /
    • 제12권1호
    • /
    • pp.41-46
    • /
    • 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.

  • PDF

간편결제 서비스의 지속사용의도에 영향을 미치는 요인에 관한 연구: 플로우, 신뢰 및 혁신저항을 중심으로 (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)

  • 손달호
    • 한국정보시스템학회지:정보시스템연구
    • /
    • 제30권1호
    • /
    • pp.1-20
    • /
    • 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.

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

  • 윤길림;윤여원;김홍연
    • 한국지반공학회:학술대회논문집
    • /
    • 한국지반공학회 2008년도 추계 학술발표회
    • /
    • pp.126-133
    • /
    • 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.

  • PDF

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

  • 이찬용;채희문;김종국
    • Journal of Forest and Environmental Science
    • /
    • 제16권1호
    • /
    • pp.34-41
    • /
    • 2000
  • 솔잎혹파리 피해임지의 특성에 따른 수세변동을 구명하였다. 솔잎혹파리 피해도("심", "중", "경")별로 구분하여 수세를 조사한 결과 피해가 심한 지역의 수목은 수세가 현저하게 약화되었으며, 수목의 임분밀도("밀", "중", "소")별로 구분한 경우는 피해도와 관계없이 임분밀도가 낮은 임분에서 수목의 수세가 강하게 나타났다. 수목의 외형적 인자중 수관폭과, 흉고직경이 작은 개체에 비하여 큰 개체의 수세가 모든 임분에서 강하게 나타났다. 각 임분에서 전기저항치와 수관면적과의 관계는 피해도 "심" 임분에서는 수관면적이 $13.4m^2$ "중" 임분에서는 $10.9m^2$, "경" 임분에서는 $7.9m^2$로 피해가 심할수록 수관면적이 넓어야 임목이 생존할 가능성이 높은 전기저항치($15k{\Omega}$ 이하)가 나타나는 것으로 파악되었다.

  • PDF

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

  • 조인제;김선규;양성병
    • 지식경영연구
    • /
    • 제16권1호
    • /
    • pp.117-142
    • /
    • 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.

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

  • 고희석;최종규;류희석;김주찬
    • 한국조명전기설비학회:학술대회논문집
    • /
    • 한국조명전기설비학회 2002년도 학술대회논문집
    • /
    • pp.307-312
    • /
    • 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

  • PDF

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

  • 김태영;박희경
    • 상하수도학회지
    • /
    • 제21권6호
    • /
    • pp.717-726
    • /
    • 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.

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

  • 김종집
    • Corrosion Science and Technology
    • /
    • 제8권5호
    • /
    • pp.193-196
    • /
    • 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.