• 제목/요약/키워드: Environment conscious

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친환경 섬유소재에 대한 대학생들의 인식도 연구 (University Students' Awareness of Eco-friendly Textile Fiber)

  • 이선영;이승구;김정화;이정순
    • 한국생활과학회지
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    • 제21권4호
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    • pp.781-790
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    • 2012
  • In midst of growing interest and awareness towards sustainability and being "green", there has been increased demand for sustainable clothing. In the purpose of boosting eco-friendly textiles industry, this research was conducted by investigating environmentally-conscious clothing behavior of university students and assessing their views on eco-friendliness of fibers. Thus, their awareness on recycled polyester fiber was evaluated. The research was conducted by surveying 257 university students residing in Daejeon. The data were analyzed with descriptive statistics, factor analysis, and reliability analysis, using SPSS 19.0. The results were as follows. 1) The majority of the subjects answered "Disposing clothing in the clothing recycling container" to reduce environmental impact. 2) Six factors of eco-friendliness of fiber were extracted as reutilization, unfinishedness, economics, environment preservation, natural materials, and slow fashion by using factor analysis. 3) Subjects scored organic cotton as most eco-friendly among various fibers. Recycled polyester fiber was graded less sustainable than natural fiber, but more eco-friendly than artificial one. 4) In assessment of subject's awareness of recycled polyester fiber, they highly valued on resource-reutilization and economics, but less valued on its hygiene, thermal insulation and health-functionality.

중, 고, 대학생의 돈에 대한 태도와 소비행동에 관한 연구 - 청소년 단계와 성별 비교 - (A Study on the Money Attitudes and the Spending Behaviors by Middle, High, and College Students - Comparison by Adolescent Stage and Sex -)

  • 홍은실
    • 가정과삶의질연구
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    • 제23권5호
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    • pp.103-122
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    • 2005
  • The purpose of this study was to examine the influences of their money attitudes to spending behaviors of middle, high, and college students. The total number of students selected for this study were 1,252. Factor analysis, Cronbach' ${\alpha}$, two-way ANOVA, Duncan' multiple range test, Pearson correlation analysis, and multiple regression were used for statistical analysis. The results were summarized as followings: 1) The tendency of attitude that money is good was highest. Also, the tendency of attitude that money represents freedom and power was slightly high. On the other hand the attitudes that money represents achievement, and that money is evil were low. Especially the attitude that money represents respect was lowest. 2) Resulting from two-way ANOVA, the attitudes that money is good and represents achievement showed significant interaction effects between sex and age. The altitude that money is good showed significant differences by sex especially among middle and high school students. The altitude that money represents achievement showed significant differences by age among the male students. Three types of attitudes that money is evil, money represents respect, and money represents both freedom and power showed significant main effects in different age groups. Also the attitude that money represents freedom and power showed significant main effect by different sexes. 3) Four different types of measuring spending behaviors scored slightly low mark. 4) Resulting from two-way ANOVA, four different spending behaviors showed significant difference only by sexes and ages. Planned spalding behavior and conscious spending behavior showed significant differences in ages and sexes separately. While impulsive spending behavior by different age groups resulted in significant differences. Excessive spending behavior by sexes resulted in significant differences. 5) Regression analysis showed that planned spending behavior had the linear relationships in no, sex, self-esteem, and attitude that money is good. Conscious spending behavior had the linear relationships in ses, and attitudes that money represent achievement. respect, and freedom. Impulsive spending behavior had the linear relationships in age, self-esteem, and attitudes that money is good and that money is evil, and attitude that money represent freedom, Excessive spending behavior had the linear relationships in sex, self-esteem, and attitudes that money represent achievement, respect and freedom.

Midazolam을 구강 점막 하로 병용 투여한 진정법의 안정성과 Houpt Scale을 이용한 진정효과에 대한 연구 (Safety and Efficacy of Submucosal Midazolam When Combined with Oral Chloral Hydrate, Hydroxyzine and Nitrous Oxide Sedation by using Houpt's Scale)

  • 박미경;김윤희;정상혁;백광우
    • 대한치과마취과학회지
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    • 제6권2호
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    • pp.103-112
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    • 2006
  • Background: The purpose of this study was to compare the clinical safety and effect with and without additional submucosal midazolam to oral chloral hydrate and hydroxyzine when used for pediatric conscious sedation in a clinical dental environment. Methods: Thirty one cases of pediatric conscious sedations were performed in this study. Selection criteria included good health (ASA I), under 6 years old, 20 kg of body weight, uncooperative behavior and the need for sedation to receive dental treatment including anesthesia and restorative or surgical procedure for at least two teeth. In each visit, patients were randomly assigned into one of two groups; CH group: chloral hydrate (60 mg/kg), hydroxyzine (1 mg/kg), CH-M group: chloral hydrate (60 mg/kg). hydroxyzine (1 mg/kg) and submucoal midazolam (0.1 mg/kg). 50% nitrous oxide-oxygen was maintained during the sedation period Sedations were monitored using a pulse oximeter for estimating pulse rate (PR) and percutaneous oxygen saturation ($SpO_2$). Behavior response rated using Houpt's scale and need of restraint was assessed every 2 minutes through 30 minutes of operative procedure reviewing the videotape recording. Evaluation of overall behavior success was performed using modified overall behavior rate of Houpt's scale. Data was analyzed using t-test. Results: PR and $SpO_2$ for both groups remained within the normal values. The mean scores for sleep and movement of CH-M group were higher than those of CH group (P < 0.05). There were no significant difference in mean score for crying between two groups. The mean scores of overall behavior of CH-M group was higher than those of CH group (P < 0.01). Reinstraint of CH-M group was less required than that of CH group (P < 0.05). Conclusions: Oral chloral hydrate (60 mg/kg) and hydroxyzine (1 mg/kg) combined with submucosal injection of midazolam was safer and showed more improved sedation effect than oral chloral hydrate (60 mg/kg) and hydroxyzine (1 mg/kg) without midazolam for sedation of pediatric dental patients.

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Dissolution Properties of Phosphate Glasses with Trace Elements

  • Lee, Hoi-Kwan;Kang, Won-Ho
    • 한국세라믹학회지
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    • 제42권6호
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    • pp.371-376
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    • 2005
  • Phosphate glasses were prepared by melting quenching process, and glass formation and dissolution properties were studied. The glass forming region in the $K_2O-CaO-P_2O_5$ system is quietly agreed with the report by Mazurin OV et al. with $M_2O-M'O-P_2O_5$ system (M : monovalent cation, M'divalent cation). Conditionally these glasses have solubility from absorbing the moisture or water and then release elements with trace elements, and the thermal and chemical properties were controllable by the $CaO,\;K_2O,\;P_2O_5$ contents. In the abnormal glass properties, this paper showed the possibility the present glasses can be a good candidate for one component of the slow released agriculture fertilizer.

고정성 보철물 및 자연치열을 위한 교합조정 (Occlusal Adjustment in the Natural and Restored Dentition)

  • 안승근
    • 구강회복응용과학지
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    • 제19권1호
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    • pp.49-55
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    • 2003
  • When treating the occlusion the dentist must ensure that patients do not develop an occlusal awareness or neurosis after therapy. This means that after treatment patients should not be conscious of the dentition at rest, in occlusion, or during function. Butactually this goal is not easy to reach in daily practice. The dental technician works with rigid casts and dies that do not move. The dentist must use fixed prostheses that have been made in a laboratory setting in a clinical environment that is significantly different. In this article relativey easy cast adjustment technique which can decrease the time necessary to clinically adjust the occlusion of newly fabricated fixed prostheses, and actual occlusal equilibration technique for natural and restored dentition will be discussed.

투수성 폴리머 콘크리트의 동결융해 저항성에 관한 연구 (A Study on the Freezing and Thawing Resistance of Permeable Polymer Concrete)

  • 박응모;조영국;소양섭
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 1999년도 봄 학술발표회 논문집(I)
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    • pp.331-336
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    • 1999
  • Permeable polymer concrete in this study is one of the environment conscious concrete that can be applied at road, side walks and river embankment, etc. The purpose of this study is to evaluate the effects of mix proportions such as resing content, filler-binder ratio and aggregate ratio on the freezing and thawing resistance of permeable polymer concrete. The permeable polymer concrete are prepared with the resin ratio of 5%, 6% and 7%, filler-binder ratio of 0, 0.5 and 1.0, and 2.5~5mm sized aggregate ratio to standard sand of 10:10, 10:20, 20:10 and 20:20. It is tested for freezing and thawing test according to ASTM C 666092, and then, weight change, length change, relative dynamic modulus, durability factor, and compressive and flexural strengths after test are measured. From the test results, the resistance to freezing and thawing of permeable polymer concrete increased with increase the resing content, filler-binder ratio and fine aggregate ratio.

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국민학교(國民學校) 건축(建築)의 입면형상표현(立面形象表現)을 위한 건축의장(建築意匠) 연구(硏究) (A Study on Architectural Form Expressing the Character of Elementary School)

  • 김득선
    • 교육시설
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    • 제1권1호
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    • pp.63-75
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    • 1994
  • This study aims to establish an analogy of presenting facade of elementary school in order to express a formal manifest in accordance with children's aesthetic sense and also to provide a better visual environment for children. The results of the study are as follows: 1) Formal expression of elementary school should be carried out primarily on harmony and unity, and based upon these, ideas of the architect should be applied. 2) Formal meaning of volumes and spacious feelings that are analogized in facades and masses of elementary schools should consider factors like the number of classrooms, sitescale. Volumetric sense should be composed as to induct coziness, conciseness, corresponding with conscious characteristics classified by grade. 3) Characteristics of presented meaning should be based upon humanistic intimacy, at the same time visually expressing characteristics of sculptural value and rationality.

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건축구성에 있어서 가벽의 역할에 관한 연구 (A Study on the Role of Free-standing Wall in the Architectural Composition)

  • 곽기표
    • 한국실내디자인학회논문집
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    • 제41호
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    • pp.80-87
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    • 2003
  • This paper attempts to examine the historical changes, the characteristics and the role of free-standing wall from the viewpoint of architectural composition. After modern times the wall gets free of structure and the view of formative art changes, which become a basis of the conscious use of free-standing wall. It plays a role of getting territoriality and placeness, by defining the space at the external territory and it is used as apparatus which controls circulation and orientation externally At the same time it is used as an instrument to blur the border to make mutual intersection and plays a role of introducing and controling the environment. The free-standing wall controls the architectural form to emphasize plasticity and is used to define a geometrical frame and maintain the urban context. In view of the results so far achieved, the free-standing wall is used as general vocabulary of modulating the border of space and the architectural form since modern architecture.

유료노인주거시설의 이용현황 및 거주자 의식에 관한 연구 (A Study on the Utilization & the Resident's Consciousness in User-Charged Residential Facilities For the Elderly)

  • 이남석;이덕용;윤충열
    • 한국농촌건축학회논문집
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    • 제9권3호
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    • pp.11-22
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    • 2007
  • Our country already came into the aging society in 2000, and it will reach the ultimate aging society in 2026. Also it is necessary the architectural proposal to serve the aging society problem. Recently days, it is increased that the aged welfare facilities, and the concern of aged welfare facilities. This study, approaching the charged aged man welfare facilities suggested as an alternative about the increase of aged man and the aged man problem in architectural and environmental aspect, investigated about the overall environment from the establishment of the charged welfare facilities to indoor space on the basis of the satisfaction degree and requiring condition of users through the estimation after residing. Thus this study is purposed to insist importance about analysis the aged welfare facilities and dwelling conscious.

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Hand-related Physical Properties and Luster Properties of Chitosan treated Cotton and Nylon Fabrics dyed with Natural Dyestuffs

  • Jeon, Dong-Won;Kim, Jong-Jun;Lee, Jung-Min;Shin, Hye-Sun
    • 패션비즈니스
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    • 제7권3호
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    • pp.36-44
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    • 2003
  • Chitosan treatment of textile fabrics has been studied to improve fabric characteristics and functions. Natural dyestuffs have been more actively employed in environment-conscious finishing products. In this study, chitosan treated cotton and nylon fabrics were prepared for dyeing with a few natural dyestuffs. These were Caesalpina sappan, Gardenia jasminoides, and cochineal in the form of powder. Hand-related physical and mechanical properties and luster characteristics were examined using the KES-FB series instruments and a set of luster measuring equipment. The chitosan treatment seemed to be more effective in terms of increasing stiffness for cotton fabric. Since cotton fibers have more -OH groups in the molecules, they provide more linkage sites with the chitosan than the nylon 6 fibers do.