• KCI Concrete Journal
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• 제11권3호
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• pp.19-28
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• 1999

This study treated self-compacting high Performance concrete as two Phase materials of Paste and aggregates and examined the effect of powder and aggregates on self-compacting high performance, since fluidity and segregation resistance of fresh concrete are changed mainly by paste. To improve the fluidity and self-compactibility of concrete, optimum powder ratio of self-compacting high performance concrete using fly ash and blast-furnace slag as powders were calculated. This study was also designed to provide basic materials for suitable design of mix proportion by evaluating fluidity and compactibility by various volume ratios of fine aggregates, paste, and aggregates. As a result, the more fly ash was replaced, the more confined water ratio was reduced because of higher fluidity. The smallest confined water ratio was determined when 15% blast-furnace slag was replaced. The lowest confined water ratio was acquired when 20% fly ash and 15% blast-furnace slag were replaced together. The optimum fine aggregates ratio with the best compactibility was the fine aggregate ratio with the lowest percentage of void in mixing coarse aggregate and fine aggregate In mixing the high performance concrete. Self-compacting high performance concrete with desirable compactibility required more than minimum of unit volume weight. If the unit volume weight used was less than the minimum, concrete had seriously reduced compactibility.

• 콘크리트학회논문집
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• 제14권3호
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• pp.373-381
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• 2002

프리캐스트 프리스트레스트 콘크리트 보의 크기와 자중은 그 운송과 조립에 드는 비용을 결정한다. 본 연구에서는 단면 최적화에 의하여 휨 응력의 구속을 받는 단면의 크기와 초기 긴장력의 크기 등을 결정하여 부재의 자중을 최소화하여 운송 및 시공의 편리성을 극대화하려한다. 프리캐스트 부재는 각 시공단계별 강도, 처짐, 그리고 부재 상, 하단에서 응력검토가 필요하다. 각 단계별 응력 제한치를 만족하는 최소자중 프리캐스트 U형보를 최적설계에 의하여 제안하였다. 최적설계에 의해 제안된 U형보는 기존의 직사각형 단면보다 39~50%까지의 자중감축이 가능할 것으로 예상된다. 본 연구에서 두 개의 대표적인 실물크기 U형보를 실험하였다. 이 실험에서 U형보는 설계하중과 공칭강도를 상회하는 휨강도에서 종국 파괴되었다.

• 한방비만학회지
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• 제12권2호
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• pp.17-27
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• 2012

Objectives: This study was designed to confirm the ethnic and socioeconomic differences in the obesity of Uzbekistan. Methods: From 139 patients, visited Korean-Uzbekistan friendship hospital of Korean Medicine, gathered the information of the sex, height, weight, ethnic group, economic status, education level, self-desired weight, self-perception of weight status and experiences of weight reduction. Also patients completed the 10 questions about the association between obesity and disease. Results: Koreans in Uzbekistan showed a significant lower value of body mass index (BMI) and a significant higher understanding between obesity and disease than other ethics. Socioeconomic differences in the obesity were not confirmed. People of Uzbekistan showed a little experience of weight reduction. Conclusions: Koreans in Uzbekistan have a different prevalence and perception of the obesity with other ethnics. Researches about the relationship between obesity and metabolic factors, and prevention programs for obesity and metabolic syndrome are needed for the public health of Uzbekistan.

• 한국의류산업학회지
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• 제5권4호
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• pp.372-378
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• 2003

The purpose of this study is to compare the self consciousness of one's body cathexis with other people's. The sample subjects were 97 females between 18 and 24 years old. They were measured on November 1999 with the anthropometric measuring, and their front and side photographs were taken. First, we investigated the size recognition of 5 body parts and ready-made clothing, the consciousness of the size of 5 body parts and body proportion for subjects. Second, we organized panel group consisted of 30 females in twenties majoring the Clothing & Textiles. The consciousness of panel group to the subject's body proportion was investigated by using the front and side photographs of subjects, and was compared with self consciousness of subjects. Data were analyzed by frequency analysis and correlation analysis. Most of subjects recognized their status, bustgirth and waistgirth larger than their real size, but they recognized their hipgirth smaller than their real size and their weight similar to their real weight. And subjects were conscious of their status and bustgirth small, their weight, waistgith and hipgirth proper or a little big, and their body proportion normal or a little unbalanced. The self consciousness of one's body cathexis was related to heights of each part especially, and subjects had a tendency to appreciate their body proportion positively if they recognized themselves tall and thin. Upon comparison of the consciousness of subject's body between subjects themselves and panel group, the appreciation of panel group was better than those of subjects themselves. And we also certified the difference of consciousness of one's body cathexis between oneself and other people. The consciousness of other people was related to the size of each body part, but the self consciousness was predicted that it was more related to the psychological factor including satisfaction or preference.

• 산업융합연구
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• 제18권6호
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• pp.41-49
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• 2020

본 연구는 대학생의 심리적 안녕감, 자아존중감과 체중걱정이 대인관계 유능성에 미치는 영향을 파악하는 서술적 조사연구이다. 자료수집은 D시와 C도의 대학교에 재학중인 대학생 167명을 대상으로 2019년 11월부터 12월까지 수집하였다. 수집된 자료는 JAMOVI 프로그램을 이용하여 서술적 통계, t-검정, 일원 분산분석, 상관관계 분석과 위계적 회귀분석을 이용하여 분석하였다. 연구 결과, 대상자의 대인관계 유능성은 성별, 성격, 생활만족도와 체중만족도에 따라 차이가 있었으며, 심리적 안녕감과 자아존중감과는 정적인 상관관계가 있었다. 대인관계 유능성에 영향을 미치는 요인으로는 성격 중 긍정적인 그룹(β=.31, p=.027), 심리적 안녕감(β=.21, p=.022)과 자아존중감(β=.24, p=.007)으로 나타났으며, 이들 변수는 대인관계 유능성을 25.2% 설명하였다. 따라서 대학생의 대인관계 유능성을 향상시키기 위해서는 이들의 심리적 안녕감과 자아존중감을 고려한 프로그램의 개발이 필요하다.

• 대한토목학회논문집
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• 제14권4호
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• pp.953-963
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• 1994

연약 점토 지반의 처리 기술은 고도의 토목공학적인 기술을 요한다. 특히 준설매립토는 액성한계가 크고 자연함수비가 매우 높아 매립재료는 부적합하지만 기술의 발달로 재료의 거동을 예측하여 안정한 재료로 활용할 수있는 단계에 있다. 본 연구에서는 초연약 준설 점토의 침강거동 및 자중 압밀거동의 특성을 알아보고 현장의 상황을 재현한 모형실험으로 얻어진 결과를 현장에서 활용할 수 있는 방안을 모색하고자 하였다. 이를 위해 압밀시험기는 대형으로 제작하였으며 높이와 직경의 변화에 따른 압밀거동의 특성을 고찰해 보고 수치모델로 자중압밀의 거동을 예측하였다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2004년도 춘계학술발표회
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• pp.922-929
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• 2004

In some port construction, a case of reclamation with dredged soil for land use can be found. Even though this is not a new technology, there are some problems on the test method and analysis. The design parameters are still remained to be solved to get accurate prediction. Sedimentation of particle and self-weight consolidation are the most important design parameters in reclamation by dredged soils. The design parameters are influenced by properties of the physical and sedimentation of dredged soils. This influencing factors can be determined depend on the history of long term sedimentation and particle characteristics. Thus, properties of the sedimentation and consolidation are varies depend on the regional geologic formation. In this paper, three different sites with different regional soil properties will be compared in design parameters of sedimentation and self-weight consolidation.

• 한국식생활문화학회지
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• 제10권5호
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• pp.367-375
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• 1995

The difference between self-evaluated obesity and obesity index of RBW and BMI as well as attitude toward weight control were studied among college students in Chungnam area. The subjects of 307 students were randomly selected and asked to categorize their body shape into 5 groups and to record their body weight and height. We found that average RBW and BMI of the students were 95.7% and 20.6, respectively. By RBW, 30.6% of students belonged to underweight and severe-underweight groups whereas 14.0% overweight and obesity ones. The female students showed lower obesity indice than the male. Self-evaluated obesity seemed likely to overestimate their body shapes above RBW and BMI, which lead to high unsatisfactioin toward their body shape. The overestimation was profound in normal weighted female students up to 20%. Misunderstanding about their obesity, especially among female college students, should be corrected necessarily by proper nutrition counseling and nutrition education, unless malnutrition could be serious in college students.

• 한국작물학회지
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• 제43권1호
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• pp.28-31
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• 1998

Nodule development was regulated partially by host plant factors originating in the shoots and roots. This study was performed to identify the origin of the factors regulating nodulation in supernodulating soybean (Glycine max [L.] Merr.) mutant 'SS2-2' which was isolated recently from ethyl methanesulfonate (EMS) mutagenesis of 'Sinpaldalkong 2'. Self- and reciprocal-grafts were made among three soybean genotypes which consisted of two supernodulating mutants, SS2-2 and 'nts 382', and a normal nodulating Sinpaldalkong 2. Self-grafted supernodulating mutants were characterized by greater nodule number, nodule dry weight, and $C_2$H$_2$ reduction activity than self-grafted wild types. They were also characterized by relatively higher nodule to root dry weight. Significant shoot genotypic effects were observed on nodule number, nodule dry weight, and $C_2\;H_2$ reduction activity per plant, whereas varying root genotypes had no effects. From this result, it is surmised that supernodulating characters are controlled by a graft-transmissible shoot factor, and mutant SS2-2 may have similar nodulation mechanism to the former supernodulating nts 382. In all grafts, both supernodulating mutants and Sinpaldalkong 2 maintained the similar balance between above ground and below ground parts regardless of significant differences in partitioning of dry matter into root and nodule between supernodulating mutants and Sinpaldalkong 2.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2006년도 추계 학술발표회
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• pp.515-520
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• 2006

Yano method had been used in predicting the settlement of self-weight consolidation of dredged soil in the construction of reclamating the dredged soil. Its estimation was found to show some different results from field measurements. The numerical analysis with PSDDF was peformed find such differences, considering the effect of desiccation on the consolidation during the remaining time after reclamation. For the parametric study, numerical analyses with/without consideration of desiccation were carried out with changing the conditions of desiccation such as the number of placing the fill and the time period between each placement. As results of analysis, estimations about consolidation settlement and distribution of water contents with consideration of desiccation was in good agreements with field measurements. It was also found that the number of placing the fill and the time period between each placement did not affect the behavior of self-weight consolidation as much as the effect of desiccation.