• 품질경영학회지
• /
• 제46권3호
• /
• pp.425-440
• /
• 2018

Purpose: This study is aimed at developing of the flex resistance testing process at low temperature with the waterproof fabric to suit the military environment, and is designed to fit for the purpose of the waterproof materials in order to optimize the test method by finding out matters to improve from existing the test method and through previous studies. Methods: The test method, which has been applied to flex resistance of existing water-repellent materials, was improved and consequently, differentiated test results could be obtained according to the test temperature, sample size, and flexing method. Results: The testing of the total of 8 samples revealed that performance of the military requirement could hardly be met just by presenting the materials or 2~3 layers when the quality criteria for high functional water repellent fabrics were applied. PTFE(Polytetrafluoroethylene) is preferred to PU(Polyurethane) to be used in the extremely low-temperature environment, but durability under the low-temperature environment may be varied depending on film thickness or laminating technique even if the materials of waterproof films are identical. Therefore, in addition to the material or texture, the test method capable of reflecting durability under the low-temperature environment shall be suggested, and the newly designed test method proposed in this study was shown to suggest differentiated quality criteria by the material. Conclusion: The water resistance measurement and the test method following flex resistance with expanded range of flex will enable the differentiable test of the samples according to the number of repetition. This study is meaningful in that it suggests a differentiable test method capable of establishing a basis of deciding suitable material when selecting military goods made of water repellent material by properly improving the test method.

• 한국터널지하공간학회 논문집
• /
• 제5권2호
• /
• pp.189-198
• /
• 2003

터널의 대단면화에 따라 각 암반 지보의 역할과 그 보강효과를 확인하고 보다 합리적인 지보구조로의 변화가 요구되고 있다. 특히, 굴착직후 숏크리트에 의한 지보효과가 효과적이지 못한 터널에서는 지보 매커니즘에 대한 추가적인 검토가 필요하다. 강도가 발생하지 않는 터널이 가장 불안한 상태에 있을 때의 지보구조는 충분한 검토가 필요하다. 본 논문에서는 약재령 (若材令)시 록볼트에 의한 보강효과를 볼트 그라우트재의 경화를 고려하여 모의암반에 의한 실험 및 수치해석을 실시하여 시간의존에 따른 그라우트재의 압축강도와 재령, 부착강도와 재령, 부착강성과 재령과의 관계를 명확하게 하는 것으로 굴착직후의 록볼트의 암반보강 효과를 검토하고, 약재령시 록볼트의 모델화 및 물리정수를 산정하였다. 또 그라우트재의 효과를 가지지 않고도 해결되는 수압팽창형 프리쿠션볼트에 의한 굴착직후의 암반보강효과에 대해서도 검토하였다.

• 한국학교ㆍ지역보건교육학회지
• /
• 제7권
• /
• pp.59-74
• /
• 2006

Objectives: The purpose of this research is to find out the relations among children‘s perceived competences, expressive disposition of interpersonal relations, and parents’ social support, which influence their self image. Methods: The samples to achieve the purpose of this research are composed of 294 students in G elementary school, OO city, Kyounggido, the number of male students in the fifth year being 71, female 77, and male students in the sixth year being 73, female 73. After having excluded the data of 9 students among them due to their insincere reply, this research analyzed the data of 285 students by using SPSS WIN Ver. 13.0. Results: First, after having observed the average difference stemming from each method, this research found that there is no sexual difference in parents‘ social support. (p<.05). In children's perceived competences, female students is higher only in active aspect than male students, but there is no meaningful difference in other aspects. In expressive disposition of interpersonal relations, the showing-off and narcissistic expressive tendency of female students is higher than that of male students, but there is no meaningful difference in other aspects. Second, this research found out the meaningful static correlation among parents' social support, children's perceived competences, and expressive disposition of interpersonal relations. Parents' emotional, appreciative, and informative support has the static correlation with all the other aspects of children's perceived competences, and material support has the static correlation with children's academic, active, and general self-esteeming sense (p<.05, p<.01). Third, this research observed, of all the aspects of parents' social support and expressive disposition of interpersonal relations, what variable is affecting children's perceived competences, and found that parents' appreciative support, showing-off and narcissistic expressive tendency, material support, and informative support, each in order, has meaningful influence (p<.05, p<.01). This fact shows that the further the children recognize these supports of their parents', the more affirmatively they recognize their competences, and the further the children of showing-off and narcissistic expressive disposion recognize their competences. Conclusions: First, sampling was conducted of the fifth and sixth male and female students of OO elementary school, and so the result of this research has the applicative limitation in the generalization for all the elementary school students. Therefore this research suggests further researches by broad sampling for the more advanced generalization. Second, this research only observed the differnce of perception deriving from gender and school year, but the parents' social support levels perceived by children reveal many differnces according to children's characters or their families' variables. Therefore this research suggests subsequent researches on various variables.

• Computers and Concrete
• /
• 제18권3호
• /
• pp.389-404
• /
• 2016

In this study, effects of impact loads on reinforced concrete (RC) plates are examined analytically. During examination of RC plates, they were exposed to impact loading with two different support conditions in three different sizes. RC plates in different support conditions were analyzed with Concrete Damage Plasticity Model (CDP) and reinforcing steel was modeled with Classical Metal Plasticity Model (CMP) by ABAQUS finite element software. After the analysis it is found that impact loads, displacements, energy absorption capacities and damage patterns are changed due to support conditions and plate sizes. Results that are obtained from RC plate experiments in literature under impact loads are found to be similar with the results of numerical analysis with CDP material models.

• 한국신재생에너지학회:학술대회논문집
• /
• 한국신재생에너지학회 2011년도 추계학술대회 초록집
• /
• pp.83.2-83.2
• /
• 2011

In this study, we fabricated tubular ceramic support for segmented-in-series solid oxide fuel cell (SOFC) by using MAO(MgAl-stabilized ) as main material and activated carbon as pore former. Thermal expansion properties of ceramic support with different amounts of activated carbon were analyzed by using dilatometer to decide a suitable sintering temperature. The tubular ceramic supports with different amounts of activated carbon (15, 20, 30wt.%) were fabricated by the extrusion technique. After sintering at $1400^{\circ}C$ for 2h, cross section and surface morphology of tubular ceramic support were analyzed by using SEM image. Also, the porosity, mechanical property, gas permeability of tubular ceramic supports was measured. Based on these results, we established the suitable fabrication technique of tubular ceramic support for segmented-in-series SOFC.

• 멤브레인
• /
• 제3권1호
• /
• pp.22-28
• /
• 1993

Polyester, polyacrylics, nylon과 cotton을 이용해 이들의 막지지천으로의 사용가능성을 조사하였다. 압축률, membrane embossing, 유량과 물리적$\cdot$화학적 특성 등을 고려한 결과 50 번수의 polyester가 막지지천으로 적당함을 알았다. 이 polyester를 막지지천으로 사용해 압력 강하, 조업압력, 점도 등이 막지지천을 통한 유체 흐름에 미치는 영향을 조사하였는데, 이 막지지천을 통한 유체 흐름은 Darcy's law를 만족시켰다.

• 여성건강간호학회지
• /
• 제6권1호
• /
• pp.18-33
• /
• 2000

Social support may play an important role in relieving the feelings of guilt and shame of unwed mothers due to social insults and ignorance and in helping them from physical and psychological harm caused by them. In addition hope may encourage to seek out a new way of life. To determine if a relationship between perceived social support and hope exists in unwed mothers a descriptive study was conducted in the facilities providing basic data for promoting the health of unwed mothers. A demographic data sheet and two instruments were used : Indirectly Perceived Social Support Scale(IPSSS) developed by Park Jee Won (revised by Jo Moo Yong), Miller Hope Scale(adapted and revised by Lee Mi Ja), 95 unmarried mothers participated. The mean score of perceived social support was 3.17. Family support was the highest(3.47) and unwed father support was the lowest(2.53) in sub-scales. Material support(3.53) was the highest in family support. Emotional support(3.58) was the highest in friends support. Informational support(3.39) was the highest in facilities-concerned personal support. The mean score of hope was 3.41 : the satisfaction with self, others and life was the highest(3.82) and anticipation of future was the lowest(3.27) in sub-scale. There was not a statistically significant relationship between social support and hope. A statistically significant relationship was found between facilities-concerned personal support and hope. In conclusion, facilities-concerned positive encouragement for unwed mothers and a program promoting support and hope from families, friends and unwed father are necessary to promote hope and health in unwed mothers.

• 근관절건강학회지
• /
• 제19권2호
• /
• pp.223-232
• /
• 2012

Purpose: The purpose of this study was to examine the relationships among perceived health status, exercise self-efficacy, social support, and exercise compliance and factors influencing exercise compliance in older adults in an area. Methods: The sample consisted of 154 older adults who attended a senior welfare center in D metropolitan city. Data were collected from the 25th to the 31th of January in 2012. Results: The mean score for perceived health status was 2.94, 911.69 for exercise self-efficacy, 46.99 for social support, and 6.83 for exercise compliance. The highest score on social support domains was emotional support, followed by self-esteem, material, and informational support. There were significant correlations between perceived health status and exercise self-efficacy, between perceived health status and exercise compliance, between exercise self-efficacy and social support, between exercise self-efficacy and exercise compliance, between emotional support and exercise compliance. Findings of multiple regression indicated that only exercise self-efficacy significantly explained exercise compliance. Conclusion: Health care providers may need to develop various intervention program to promote exercise self-efficacy in order to influence on exercise compliance and adherence among older adults.

• 한국산학기술학회논문지
• /
• 제22권3호
• /
• pp.453-459
• /
• 2021

본 연구의 목적은 예술심리치료사의 일터영성, 사회적지지, 대인관계의 관계를 파악하는데 있다. 연구대상은 U시 예술심리치료사 114명을 대상으로 실시하였다. 분석방법은 SPSS 22.0 프로그램을 사용하여 빈도분석, 신뢰도분석, 상관관계분석, 다중회귀분석을 실시하였다. 연구결과 첫째, 예술심리치료사의 일터영성이 대인관계에 미치는 영향을 살펴본 결과 일터영성의 하위요인인 소명의식, 내면의식, 공감의식은 대인관계에 긍정적으로 유의미한 영향을 미치는 것으로 나타났다. 반면 일터영성의 하위요인인 공동체의식, 초월의식은 대인관계에 유의미한 영향을 미치지 않는 것으로 나타났다. 둘째, 예술심리치료사의 사회적지지가 대인관계에 미치는 영향을 살펴본 결과 사회적지지의 하위요인인 평가적지지, 물질적지지는 대인관계에 긍정적으로 유의미한 영향을 미치는 것으로 나타났다. 반면 사회적지지의 하위요인인 정서적지지, 정보적지지는 대인관계에 유의미한 영향을 미치지 않는 것으로 나타났다. 이는 예술심리치료사의 소명의식, 내면의식, 공감의식, 평가적지지, 물질적지지 요인이 높을수록 대인관계가 높아진다는 것을 의미하는 것이다. 본 연구의 시사점은 예술심리치료사들의 긍정적인 대인관계 증진을 위한 방안 마련의 기초자료가 될 것으로 사료된다.

• 융합정보논문지
• /
• 제9권2호
• /
• pp.155-164
• /
• 2019

이 연구에서는 발달장애인 가족 284명을 대상으로 가족지원 서비스에 대한 중요도와 만족도 인식 수준을 알아보았는데, 그 결과는 다음과 같다. 첫째, 발달장애인 가족의 가족지원 서비스에 대한 중요도-만족도 인식 수준은 전반적으로 그리고 하위유형별로 모두 통계적 유의차가 있는 것으로 나타났다. 둘째, 발달장애인 가족의 가족지원 서비스에 대한 중요도 인식 수준은 양육활동 지원, 신체적 물질적 안녕 지원, 가족 상호작용 지원의 순으로 나타났다. 셋째, 발달장애인 가족의 가족지원 서비스에 대한 만족도는 양육활동 지원, 가족 상호작용 지원, 정서적 안녕 지원의 순으로 나타났다. 넷째, 중요도-만족도 사분면의 특성을 분석하여 현상 유지, 개선 노력, 중장기 전략 필요 등을 제안하였다. 이 연구의 결과는 발달장애인 가족지원 서비스의 개선을 위한 기초자료로 활용할 수 있을 것으로 기대된다.