• 제목/요약/키워드: Actual IS Usage

검색결과 443건 처리시간 0.031초

건축 마감 재료의 사회적 이미지에 관한 연구 (A Study on the Social Image of Architectural Finishing Materials)

  • 김소희
    • 한국실내디자인학회논문집
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    • 제13권5호
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    • pp.39-47
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    • 2004
  • In modem days when architectural materials have grave impacts on overall design expression, materials for architecture, especially finishing materials have become the most essential elements for the design expression, as architectural space and form have been. This study closely verifies the concept of tensity analyzed in preceding studies by quantifying it through experimentation and questionnaire, and suggests possible alternatives which verified concept of tensity applies into the architectural design. It was examined how architects consider the finishing materials through a questionnaire. With a questionnaire, the possibility of quantificative analysis for tensity is evaluated by SPSS program. Moreover, a questionnaire about the social image that the architectural finishing materials have was also conducted. This questionnaire results In the actual methods to apply quantificated psychological tensity and social images into the architectural design and recommends better plan to select finishing materials for each spacial function and usage, Due to the great influence of social images in design expression, the application mechanism of the tensity should follow the general and individual principles together. With the tensity figure and application of social images we can find more resonable method for material selection.

실증연구를 위한 주택용 태양열 온수기 모니터링 시스템 개발 (The Development of monitoring system for demonstration research of solar hot water heater for dwellings)

  • 양동조;김재열;한재호;송경석;김우진
    • 한국공작기계학회:학술대회논문집
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    • 한국공작기계학회 2004년도 추계학술대회 논문집
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    • pp.156-161
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    • 2004
  • The application of solar energy, in the field of alternative energy, was on the increase tendency. In the case of advanced nations, through continuous R&D, solar hot water heater with high efficiency has been used for the house and the industrial process on business, advanced nations were reached up the experimental stage of solar generation system. But, the actual circumstance of the domestic has been not accomplished the popularization of solar hot water heater and the settlement of it which is the fundamental stage of the solar energy usage. This trouble, the domestic was flooded with small enterprise for producing solar hot water heater, was caused by the popularization and the production without verification of performance. To supply the monitoring program for evaluating solar hot water heater, this research was purpose to improve the technical development of the enterprise for producing solar-heat hot-water-boiler and served as an aid for the enlargement and the popularization on solar energy.

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태국 매해 지역에서의 지속가능한 건축재료 활용연구 - 흙다짐 공법을 중심으로 - (Usage of Indigenous Material for Sustainable Construction at Mae-Hae, Thailand - Focused on Rammed Earth Method -)

  • 김두순;정상모
    • KIEAE Journal
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    • 제13권2호
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    • pp.33-38
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    • 2013
  • Limited resources for construction material in the Mae-Hae region, a remote Northern Thailand, acted as an impetus to introduce a new way for constructing their dwellings. The new construction material brought new construction methodology, namely, using earth and bamboo which are indigenous materials, readily available for them to use. Using indigenous material at Mae-Hae region was most ecological and logical method for establishing sustainable dwellings both in terms of monetary and ecological reasons. Prior to the construction at Mae-Hae, Thailand, series of experimental tests on the strength of rammed earth were performed off site at our university and also brought soil samples from the actual job site at Mae-Hae for detailed soil analysis. Through the tests, integrity of the earth and characteristics of the soil were established to build a small senior citizen center as an example. This appropriate technology is expected to contribute to the sustainable construction at Mae-Hae.

동절기 단열 유·무 거푸집을 설치한 슬래브 콘크리트에서 등가재령 기반의 무선센서 네트워크를 이용한 강도 모니터링 (A strength monitoring with wireless sensor network based on equivalent age method depending on the usage of the insulated formwork during the winter period)

  • 이영준;이혁주;현승용;서항구;이상운;한민철
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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    • pp.167-168
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    • 2018
  • In this research, the feasibility of wireless senor for compressive strength evaluation was checked by applying on the actual apartment construction site with insulation formwork during winder period. As a result, there was no significant problem on monitoring the compressive strength of the concrete with the sensor. Thus it is considered that the suggested method can be an efficient method for the quality control at the construction site.

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BLDC 전동기를 사용한 전기 스쿠터 개발 (An electric scooter development using BLDC motor)

  • 박성욱;이득기
    • 전기학회논문지P
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    • 제51권4호
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    • pp.219-221
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    • 2002
  • This paper presents an electric scooter development using blushless DC motor. In recent scooters was to develop for sport leisure and short transportation. Most of scooter are used petroleum gas. This gas scooter has disadvantage to pollute the air. Some of scooters have developed by DC motor which require a brush. However brushless motors have higher maximum speed and greater capacity, save maintenance labour and produce less noise. There is also greater freedom in planing the usage of brushless motors. In this paper we develop an electric scooter driving BLDC motor for design smart system and control speed of scooter with current reference signal to apply voltage to motor by means of three phase inverter. Using accelerator device we generate current reference to control speed and send the current to a MICOM by A/D converter. This MICOM produces the voltage signal and hall sensors signal and PWM controller drive three phase inverter to minimize error between the reference and an actual current.

회귀분석에 의한 건물에너지 사용량 예측기법에 관한 연구 (A Study for Predicting Building Energy Use with Regression Analysis)

  • 이승복
    • 설비공학논문집
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    • 제12권12호
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    • pp.1090-1097
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    • 2000
  • Predicting building energy use can be useful to evaluate its energy performance. This study proposed empirical approach for predicting building energy use with regression analysis. For the empirical analysis, simple regression models were developed based on the historical energy consumption data as a function of daily outside temperature, the predicting equations were derived for different operational modes and day types, then the equations were applied for predicting energy use in a building. BY selecting a real building as a case study, the feasibilities of the empirical approach for predicting building energy use were examined. The results showed that empirical approach with regression analysis was fairly reliable by demonstrating prediction accuracy of $pm10%$ compared with the actual energy consumption data. It was also verified that the prediction by regression models could be simple and fairly accurate. Thus, it is anticipated that the empirical approach will be useful and reliable tool for many purposes: retrofit savings analysis by estimating energy usage in an existing building or the diagnosis of the building operational problems with real time analysis.

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고속도로 휴게소 시설의 평면계획에 관한 기초적 연구 - 부산~광주 간 고속도로를 중심으로 - (A Basic Study on the Floor Planning of the Expressway Service Facilities - Focused on Busan-Gwangju Expressway -)

  • 양금석
    • 한국농촌건축학회논문집
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    • 제6권3호
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    • pp.39-48
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    • 2004
  • The purpose of this study is to clarify the actual conditions of the plan composition of expressway service facilities. This study investigated the characteristics of both indoor space and outdoor space of 15 service facilities, and then analyzed attributes of users by the plan type along with their perception on the facility usage. The results of this study are summarized as follows; 1) When analyzing the attributes of expressway service facilities users, 36% respondents said that they used the expressway service facilities just to rest. The average distance of using the service plaza was found to be approximately 67km. 2) In terms of the indoor space of the expressway service facilities, as basic patterns, B(R+C+T)-type(53%), A(C+R+T)-type(40%), C(C+T+R)-type(7%) were found in order, all the service facilities need to expand them.

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The Impact of Privacy Control on Users' Intention to Use Smart Home Internet of Things (IoT) Services

  • Kim, Mingyung;Choi, Bo Reum
    • Asia Marketing Journal
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    • 제24권1호
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    • pp.29-38
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    • 2022
  • Despite the diverse benefits of smart home Internet of Things (IoT) services, the biggest obstacle to the actual usage of those services is concern about privacy. However, little research has investigated the impact of privacy control on users' intention to use smart home services. Based on communication privacy management theory and privacy calculus theory, this study investigates how privacy control options affect users' perceived benefits and costs and how those perceptions affect individuals' intentions to use smart home services by conducting an experiment. Our results showed that smart home privacy control options decreased perceived benefits and increased perceived costs. The perceived benefits and costs significantly affected the intention to use smart home security services. More intriguingly, the effect of perceived benefit was found to be stronger than that of the expected cost. This research contributes to the field of IoT and smart home research and provides practitioners with notable guidelines.

ASME BPVC Section XI Appendix L의 결함허용평가에 따른 허용운전주기 민감도 분석 (Sensitivity Analysis for Allowable Operating Period Based on the Flaw Tolerance Evaluation of ASME BPVC Section XI Appendix L)

  • 오창식;조두호;정명조
    • 한국압력기기공학회 논문집
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    • 제17권2호
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    • pp.126-136
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    • 2021
  • During operation of nuclear power plants, the fatigue assessment should be conducted repeatedly, considering changes of operating environments. For the case that cumulative usage factors (CUFs) may exceed the acceptance limit, flaw tolerance evaluation can be an alternative method to meet the regulatory requirements. In this respect, this paper analyzes the effects of the input variables for flaw tolerance evaluation based on ASME BPVC Section XI Appendix L. The reference analysis is performed for the example problem in NUREG/CR-6934. Then effects of the crack orientation, stress intensity factor solutions, thermal stress profiles, fatigue stress decomposition and fatigue crack growth curves are considered for the sensitivity analysis. The results show that the stress analysis considering the actual environment plays a crucial role in flaw tolerance evaluation.

New method for generation of artificial ground motion by a nonstationary Kanai-Tajimi model and wavelet transform

  • Amiri, G. Ghodrati;Bagheri, A.;Fadavi, M.
    • Structural Engineering and Mechanics
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    • 제26권6호
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    • pp.709-723
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    • 2007
  • Considering the vast usage of time-history dynamic analyses to calculate structural responses and lack of sufficient and suitable earthquake records, generation of artificial accelerograms is very necessary. The main target of this paper is to present a novel method based on nonstationary Kanai-Tajimi model and wavelet transform to generate more artificial earthquake records, which are compatible with target spectrum. In this regard, the generalized nonstationary Kanai-Tajimi model to include the nonstationary evaluation of amplitude and dominant frequency of ground motion and properties of wavelet transform is used to generate ground acceleration time history. Application of the method for El Centro 1940 earthquake and two Iranian earthquakes (Tabas 1978 and Manjil 1990) is presented. It is shown that the model and identification algorithms are able to accurately capture the nonstationary features of these earthquake accelerograms. The statistical characteristics of the spectral response of the generated accelerograms are compared with those for the actual records to demonstrate the effectiveness of the method. Also, for comparison of the presented method with other methods, the response spectra of the synthetic accelerograms compared with the models of Fan and Ahmadi (1990) and Rofooei et al. (2001) and it is shown that the response spectra of the synthetic accelerograms with the method of this paper are close to those of actual earthquakes.