• 제목/요약/키워드: Usage Behavior Change

검색결과 67건 처리시간 0.028초

Compressive behavior of galvanized steel wire mesh (GSWM) strengthened RC short column of varying shapes

  • Marthong, Comingstarful
    • Structural Monitoring and Maintenance
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    • 제7권3호
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    • pp.215-231
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    • 2020
  • In a reinforced concrete building different shapes of column are adopted depending on the structural orientation and the architectural aspect. When there is an increase in loading due to changes in usage or revision in the design codes these columns need to be strengthened for enhanced performance during their service life. Strengthening materials such as carbon fiber and glass fiber polymer has been successfully used however, due to high cost application other alternative materials need to be explore. Galvanized steel wire mesh (GSWM) is one of the suitable materials locally available. High tensile strength, low weight, corrosion resistance, easy installation, minimum change in dimensions of the sections and cost effectives are the advantages of GSWM. Therefore, in this paper, four different shapes of column such as circular, square, rectangular and L were wrapped with different layers GSWM and jacketed with mortar. All the specimens were tested under axial compression. The objective of the study is to investigate the effectiveness of GSWM as a confining material for strengthening of column having varying shape. Test results shows that the axial strength enhanced with wrapping of GSWM jacket and a circular column presented the highest load carrying capacity and ductility as compared to the others. From the study of 22 column specimens, it is found that axial load is increased upto 20% and 19% when circular and square column are strengthened with one wrap of GSWM respectively, while a rectangular and L column required a wraps of two and three layers respectively in order to achieved the same load capacity as that of a circular column. Based on the present study, it is concluded that GSWM can be effectively used for strengthening of different shapes of concrete columns economically.

서울 M 고등학교 학생들의 구강보건교육에 대한 성취도 및 유효도 (Achievement and effectiveness on oral health education of M high school students in Seoul)

  • 신경희;진보형;윤미선
    • 한국치위생학회지
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    • 제11권5호
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    • pp.801-809
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    • 2011
  • Objectives : The Purpose of this study is to apply an oral health education program to the high school students, to analyze their oral health knowledge and changes of behaviors, and to examine oral health education for effective, thus using all of those results as the basic data for developing materials on their oral health education. Methods : The study was conducted on the freshmen and women of M high student in Seoul City. They were in total 85 student, consisting of 77 of male student(90.6%) and 8 of female student(9.4%). Knowledge survey contained 38 questions including such as dental common knowledge, dental caries, and periodontal disease, while behaviors survey did 24 questions including such as tooth-brushing, brush selection and management, and prevention of oral disease. Results : First, oral health education had brought to improve oral health knowledge for high school students. Second, even with the improvement of oral health behaviors through the education, there was not statistically significant on behaviors such as the regular checkups and the usage of dental floss. And third, the students in general were satisfied with the oral health education. Conclusions : First, the oral health education being conducted in kindergarten and elementary school should be continued or expanded into the adolescence. Second, the oral health education should be focused efficiently on the learning objective demanding for a change of behavior through the repeated education, for which the education that is right for the high school students should be done. And third, for the effective oral health education in high school, the media that could cause interests should be developed.

Effect of water jetting parameters on the penetration behavior of jack-up spudcan in surficial sand condition

  • Han, Dong-Seop;Kim, Seung-Jun;Kim, Moo-Hyun
    • Ocean Systems Engineering
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    • 제5권1호
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    • pp.1-19
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    • 2015
  • The water jetting system for a jack-up spudcan requires the suitable design considering the platform/spudcan particulars, environments, and soil conditions, either the surficial clay or surficial sand. The usage of water jetting depends critically on soil conditions. The water jetting is usually used for the smooth and fast extraction of the spudcan in the surficial clay condition. It is also required for inserting spudcan up to the required depth in the surficial sand condition, which is investigated in this paper. Especially, it should be very careful to use the water jetting during an installation of spudcan in the surficial sand condition, because there is a risk of overturning accident related to the punch-through. Therefore, in this study, the effect of water jetting flow rate and time on the change of soil properties and penetration resistance is analyzed to better understand their interactions and correlations when inserting the spudcan with water jetting in surficial sand condition. For the investigation, a wind turbine installation jack-up rig (WTIJ) is selected as the target platform and the multi layered soil (surficial sand overlaying clays) is considered as the soil condition. The environmental loading and soil-structure interaction (SSI) analysis are performed by using CHARM3D and ANSYS. This kind of investigation and simulation is needed to decide the proper water jetting flow rate and time of spudcan for the given design condition.

사용자 선호기반 웨어러블 디바이스의 수용성 연구: 스마트워치를 중심으로 (Why Do Consumers Resist Innovative Wearable Devices? The Case of Smartwatches)

  • 김민석;김원준;김민기;강재원
    • 한국콘텐츠학회논문지
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    • 제17권9호
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    • pp.523-535
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    • 2017
  • 다양한 기능을 제공하는 웨어러블 디바이스에 대한 대중의 인지 및 관심은 크게 증가하였으나, 정작 실제 판매 성장률은 정체되는 현상이 관찰되고 있다. 본 논문은 이러한 웨어러블 디바이스의 확산정체현상을 분석하기 위해 향후 스마트워치에 내장될 서비스 기술들에 대한 소비자의 선호를 컨조인트 분석을 통해 파악하였다. 또한, 스마트워치의 각 서비스별 소비자 지불의사금액을 도출하여, 스마트워치 제품별 간접효용과 이에 기반한 상대적 소비자 수용률을 예측하였다. 그 결과 신기술 사용으로 얻는 기대효용보다 스마트워치 착용이 야기하는 새로운 행동양식의 변화로 인한 심리적인 비용이 클 경우, 소비자들이 구매를 주저하여 혁신적인 제품의 확산이 저해되는 소위 '혁신의 저주'가 스마트워치 시장에서도 나타날 수 있음을 확인하였다. 이와 같은 분석결과는 웨어러블 디바이스 기술개발 계획 수립과 같은 기술전략 뿐만 아니라, 제품출시 및 판매가격 설정 등 마케팅 전략에 대한 실무적 시사점을 제공한다.

내한촉진제를 사용한 고로시멘트 모르타르의 수축성상 (Shrinkage Properties of Blast Furnance Slag Cement Mortar by using Frost-Resistant Accelerator)

  • 최형길;이준철
    • 한국건축시공학회지
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    • 제19권1호
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    • pp.59-66
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    • 2019
  • 고로시멘트와 내한촉진제를 병용한 모르타르의 수축특성 및 수축성상에 미치는 영향에 대해 검토했다. 그 결과, OPC, BB 모두 내한촉진제를 첨가함에 따라 굳지 않은 성상에 미치는 영향은 작고, 초기재령부터 압축강도는 커진다. 또한, 내한 촉진제를 표준 사용량 이상으로 다량 사용할 경우에는 초기재령에 있어서의 팽창거동, 특히 강도발현과 팽창성의 관계에 대해 검토할 필요가 있다. 한편, 내한촉진제를 첨가함으로써 OPC, BB 모두 길이변화는 증가하는 경향을 확인할 수 있었다. 내한촉진제를 첨가함에 따라 직경 30nm 이하의 세공량, 특히 직경 20~30nm의 세공량 및 ink-bottle 세공량이 감소하여 수축량은 커지게 되며, 이 범위의 세공량의 변화가 수축성상에 미치는 영향이 크다고 판단된다.

Analysis of Usage Behavior and Preference in Senior-Friendly Parks for the Aging Society

  • Jung, Yong Jo;Chae, Su Deok
    • 인간식물환경학회지
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    • 제22권6호
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    • pp.665-676
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    • 2019
  • The Korean society is currently showing a decrease in the child population and a rapid increase in the elderly population due to low birth rates and aging, but the current park system does not reflect the changing population structure. This study aimed to find ways to plan and promote use of senior-friendly parks for the aging society. The results are as follows. First, the elderly mostly gathered in Tapgol Park and Jongmyo Park which were accessible to subways and close to amenities and traditional markets. The elders usually gathered around buffer zones or green spaces set up to protect cultural heritages. Second, many elderly users were observed in Osolgil Silver Park and Sinteuri Park which were renovated with senior-friendly concept. These parks were recognized as places that the elderly people could visit without minding users of other generations because the elderly users were ensured by words such as 'seniors only' or 'senior-friendly'. Third, the importance of the locational conditions for the senior-friendly parks should be mentioned. A senior-friendly park must be located in an urban center to have convenient access to transportation, secure large green spaces, and make elderly users feel at ease with social connectivity when they use the amenities there. Fourth, the survey results showed that elderly people visited parks to exerciseand take a walk (track),by age, older age groups visited the park to socialize with other elders around their age. Fifth, the most desired facilities for constructing senior-friendly parks were fitness equipment, and sports facilities like a trail, track, and gateball field, and in some cases, vegetable gardens and indoor rest area to avoid wind in cold weather.

디지털 환경에서 학술연구자들의 정보요구 및 이용행태에 관한 연구 - 인문사회분야와 과학기술분야의 비교를 중심으로 - (A Study on Information Users' Needs and Information Seeking Behavior of Doctoral Researchers in Digital Age)

  • 김정환;김재훈;황재영
    • 한국도서관정보학회지
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    • 제42권3호
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    • pp.189-208
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    • 2011
  • 인터넷과 정보통신기술이 급변하는 디지털 환경에서 학술연구자들은 종전보다 더 복잡하고, 다양한 매체를 통해 학술정보를 활용하고 있다. 본 연구에서는 달라진 정보환경에서 국내 박사과정 학술연구자들의 정보요구와 정보추구행태를 알아보기 위해 5개의 범주내에서 13개의 질문 항목을 도출하고 이를 통해 집단 면접조사를 하였다. 5가지 범주는 (1) 일반적인 학술정보 활용 패턴 (2) 학술정보 활용 이유(태도), (3) IT Skill과 정보활용능력, (4) 물리적 도서관 이용 대비 전자정보 접근, (5) 전자정보 활용과 관련된 전반적인 견해 등이다. 특히, 인문사회분야 학술연구자들과 과학기술분야 학술연구자들을 균등하게 선발하여 면접조사를 함으로써 두 집단간의 공통점과 차이점을 비교 분석하는데 연구의 주안점을 두었다. 연구결과 학술정보 활용 목적, 정보활용능력, 인쇄자료 대비 전자자료 활용 비율, 연구 아이디어나 지식을 얻는 경로 분야에서는 차이가 없었으며, 학업이나 연구와 관련하여 주로 활용하는 자료, 즐겨찾는 학술 포털사이트 분야에서는 차이가 있는 것으로 나타났다.

건설산업 생산체계 개편에 따른 건설보증시장 변화 예측 조사 (Prediction Survey on Construction Guarantee Market Due to the Restructuring of the Construction Industry's Production System)

  • 김성일;장철기;유현지
    • 한국건설관리학회논문집
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    • 제22권1호
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    • pp.63-71
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    • 2021
  • 건설보증시장은 건설산업 및 건설시장의 변화에 영향을 받는 후방시장으로서의 특성을 갖고 있다. 최근 종합건설업체와 전문건설업체간의 업역 규제가 폐지되는 등 건설산업 생산체계의 대대적 개편이 추진됨에 따라 건설시장 뿐만 아니라 건설보증시장에도 큰 변화가 예상된다. 건설보증시장에는 현재 업역과 업종을 기반으로 구분된 종합·전문·기계설비의 3개 공제조합이 운영되고 있다. 업역이 폐지되고 나면 3개 공제조합 간 경쟁구조가 형성되는 등 건설보증시장에 여러 영향을 미칠 것이고, 따라서 시장 변화에 따라 건설보증기관의 역할에도 변화가 필요하다. 본 연구는 건설산업 생산체계 개편이 건설보증시장에 불러올 변화를 분석·예측하고, 건설보증시장에 미치는 파급효과를 분석하였다. '건설산업 생산체계 개편안'과 건설보증 관련 법령 및 제도· 정책, 건설 보증기관 관련 통계자료를 검토하여 건설보증시장의 현황을 파악하고, 3개 공제 조합원을 대상으로 설문조사를 수행하여 시장 참여자의 보증기관 이용 행태를 분석하였다. 생산체계 개편 후 보증시장 변화를 살펴보면, 기계설비 조합원의 타 보증기관 이용 의향이 가장 높으며, 종합과 전문 조합원은 경쟁 확대에도 불구하고 기존 공제조합을 이용, 타 이용기관을 중복으로 이용하는 조합원들이 많을 것으로 예상된다.

복식의 자연주의 양식에 관한 연구-90년대 현대 복식을 중심으로- (A study on naturalism style of fashion-concentrating on the 1990s-)

  • 이경아;전혜정
    • 복식
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    • 제37권
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    • pp.253-273
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    • 1998
  • The culture reflects the ideology of a particular period in time and such values change according to the needs and requests of that time which eventually becomes an important factorin forming the exterior. The clothing is part of a way that composes and expresses the inherent substance of society and culture. Also, the clothing itself manifests the artistic values and behavior of mankind as an external structure maintaining its place as a big part in culture. The purpose of this study are to elucidat the concept of naturalism, which is discussed in many facets in the modern era; I studied the concept as well as the history of naturalism in order to manifest the meaning of clothing in the context of culture and I explained the concept in terms of the modern era. On such ground, I explained the naturalism expressed through clothing and characterized the exter-nal form of clothing. Also, in order to know the stream of naturalism in the modern context, I referred to the Vogue magazine of the 90s, using Delong's ABC method. Naturalism, in the context of modern fashion is a way to express the nostalgia of nature's vi-ability and purity of ecology apart from the artificial and structural appearance that resulted form scientific enhancement and hence, the ecological crisis. Naturalism pursues the soft- ness and comfort of the natural silhouette, color and material of the human body and it can be said that naturalism emphasizes the mix-ture of three substances : human, nature and clothing. The naturalism can be characterized by the factors expressed in clothing as follows. First, the naturalism shown in the form it-self draws the beauty of the bodyline without any reduction nor exaggeration. Without any distorttion of the human bodyline it shown the curve as one moves along, using the soft material. Second, the naturalism shown in color most-ly uses the natural tone with added white color and other color low in intensity and value like the receded colors of the earth that could be compared to the beauty of ecru. Third, the naturalism shown in the material is thin, light and soft in texture. In order to bring out the most natural curve of the human body, the natural fiber becomes the main material, sometimes, using crude materials. Due to the lindustrial improvement, softness and elasticity is added to the natural fibers giving them an important role as materials. Fourth, the naturalism shown in textile depicts the real natural objects in life. According to my study, the personality of naturalism in modern clothing was shown to be most strong in material and then in the order of form, texture and textile. The material com-posed of the natural silhouette and natural fibers were used to make soft color. In form, Paul Poiret made appearance expressing the natural beauty of the human body without the corset ; it continued with the inner lining making the clothing hard but in the 90s, lining-less, extremely exposed clothes and knit wear is used to emphasize the natural beauty of the body. In color and textile, the tendency spok-en above is not as strong but in color, instead of high intensity or value, the usage of neutral colors with added white color or ecru color, ear-th tone is increasing. In textile, the usage of flowers as natural material is seen frequently. As a whole, naturalistic trend in the 90s is increasing and the modern fashion is breaking out from the artificial and architectural form and conforming to a form that can realize the natural beauty of the human body. And the natural color and textile that conforms to such ideas are being used to pursue the human oriented trend that has appeared due to the increase in usage of soft natural fiber. Nowadays, the idea of returning to nature, defying the artificiality, desiring the leisure and psychological abundance that can be explained as naturalistic way of thinking is necessitated in this modern era as long as humans coexist with nature, this tendency will continue in clothing.

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KB국민카드의 빅데이터를 활용한 실시간 CRM 전략: 스마트 오퍼링 시스템 (Real-time CRM Strategy of Big Data and Smart Offering System: KB Kookmin Card Case)

  • 최재원;손봉진;임현아
    • 지능정보연구
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    • 제25권2호
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    • pp.1-23
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    • 2019
  • 소비자의 니즈가 다양해지면서 데이터 마이닝과 고도화된 고객관계관리(CRM) 기법을 활용한 체계적인 마케팅 서비스를 제공하는 기업이 증가하고 있으며, KB국민카드는 고객의 결제 데이터 등을 활용하여 고객 개개인의 니즈를 충족시키고 소비자의 평생가치를 극대화하기 위한 전략을 강조하고 있다. 실시간으로 고객의 카드이용과 고객 행동, 위치 정보 등을 감지하여 진행하는 고효율 마케팅 운영시스템인 스마트 오퍼링 시스템을 운영하고 있으며, 다양한 앱 등과 결합하여 더욱 정교화된 서비스를 제공하고 있다. KB국민카드는 스마트 오퍼링 시스템의 성공과 지속적인 성장을 위해 고도화되고 있는 ICT 기술과 인재 확보를 위한 투자를 진행해야 하며, 장기적인 관점에서의 수익확보를 위한 전략을 확립하여 체계적인 진행이 필요하다. 특히, 프라이버시 침해와 개인정보 유출 등의 문제가 쟁점이 되는 현재 상황에서 고객 정보를 활용한 마케팅에 대한 고객의 인식을 긍정적으로 유도하고, 보안성을 강조하는 기업 이미지 형성을 위한 노력이 필요하다. 본 연구는 CRM 전략의 변화 과정을 통해 현재 카드사의 실시간 CRM 전략을 KB 국민카드의 빅데이터 활용전략과 마케팅 활동을 통해 확인하고자 한다.