• Title/Summary/Keyword: 응집성분석

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엘크 사슴육의 물리화학적 및 지방산 조성

  • Kim, Il-Seok;Jin, Sang-Geun;Ha, Gyeong-Hui;Park, Gi-Hun;Ha, Ji-Hui;Jeong, Gi-Jong;Choe, Yu-Mi;Park, Seok-Tae;Gwak, Gyeong-Rak;Park, Jeong-Gwon;Gang, Yang-Su
    • Proceedings of the Korean Society for Food Science of Animal Resources Conference
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    • 2005.10a
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    • pp.146-149
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    • 2005
  • 엘크 사슴고기(Elk deer, Cervus elaphus andadensis)에서 생산된 등심(T1)과 뒷다리살(T2)에 대한 품질 특성을 파악코자 실시되었으며 분석 결과는 다음과 같다. T2가 T1보다 수분 함량은 낮고, 단백질 함량은 높았으며, 전단가는 낮고 보수력은 높았다. 육색 측정 결과 T1 및 T2간 명도, 적색도, 황색도 모두 유의적인 차이가 없었다. 조직특성 조사에서 경도, 부착성, 검성 및 파쇄성은 유의적인 차이가 있었으나, 응집성과 탄력성은 유의적인 차이가 없었다. 지방산 분석결과, SFA와 UFA는 두 부위 간 유의적인 차이가 없었으나 EFA는 T1이 유의적으로 높았다.

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Stress Perception, Coping and Distress in College Entrance Examination Among Adolescents and their Parents (부모와 수험생 자녀의 스트레스인지, 대처 및 드스트레스)

  • 김경신
    • Journal of Families and Better Life
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    • v.13 no.1
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    • pp.12-25
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    • 1995
  • 본 연구는 수험생 자녀를 둔 가족의 정신, 신체적 건강이 크게 위협받고 있음을 중시하고, 부모와 수험생 자녀가 겪는 스트레스를 인지, 대처, 디스트레스의 각 측면으로 측정하고 관련 변인을 분석함으로써, 이들 가족의 스트레스 극복을 위한 적절한 방안을 강구해보고자 하는데 그 목적을 두고 고등학교 3학년 재학생과 그 부모 3인을 한쌍으로 360가족, 1080명을 대상으로 자료수집 하였으며, 주요 분석결과는 다음과 같다. 1) 자녀의 학업스트레스가 가장 높게 나타났으며 다음은 모, 부의 순으로 나타났으나 모, 부간의 차이가 크지 않아 부, 모, 자녀의 순으로 대처능력이 높게 나타나 자녀는 높은 스트레스를 인지하면서도 적절한 대체방안을 사용하지 못하고 있음을 알수 있다 2) 부모자녀의 스트레스 상관도는 자녀의 경 우 스트레스 인지와 디스트레스간의 상관이 비교적 높고 부모의 경우는 스트레스 대처와 디스트레스간의 상관이 높다. 또한 부부간 스트레스는 상관이 높지만 부모 자녀간에는 상관이 높지 않게 나타나고 있다. 3) 자녀의 지원대학 수준모의 학력이나 가족의 소득부의 직업 수준등이 낮은 경우 부모나 수험생 자녀의 스트레스가 높게 나타나고 가족응집성, 자녀의 자아 정체감 학업성취욕, 부모의 결혼만족도, 부와의 친밀성, 부모 자녀 갈등등은 스트레스 수준에 영향을 미치는 중요변인이며 이러한 영향력은 모두 자신의 지각에 따라 반응한다.

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Evaluation of microplastics reduction effects using Dissolved Air Floatation and Brown-gas (용존공기부상법과 브라운가스를 이용한 미세플라스틱 저감효과 평가)

  • Kim, Taekyoung;Jeong, Hanseok
    • Proceedings of the Korea Water Resources Association Conference
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    • 2022.05a
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    • pp.474-474
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    • 2022
  • 미세플라스틱이 물 환경으로 배출되는 주요 경로로는 하수처리장 방류수와 강우유출수가 있다. 하수처리장 및 유역에서 배출된 미세플라스틱은 하천과 하구역을 거쳐 해양과 같은 대규모 수역으로 이동하는데, 이 과정에서 해양뿐만 아니라 담수호, 저수지 등과 같은 공공수역에도 미세플라스틱이 지속적으로 축적되고 있다. 특히 강우유출수에 포함된 미세플라스틱은 적절한 처리 과정 없이 하천으로 유입되는 경우가 많아 공공수역 내 미세플라스틱 저감 기술의 필요성이 증가하고 있다. 그러나 미세플라스틱 관련 기존 연구는 미세플라스틱의 분포 등 현황에 대한 모니터링 및 환경위해성과 관련한 것이 대부분이며, 미세플라스틱 저감기술 관련 연구 또한 일부 정수처리 및 하수처리 공정을 대상으로 하는 초기 단계의 연구가 진행되고 있을 뿐 공공수역에서의 미세플라스틱 저감기술 개발 관련 연구는 전무한 실정이다. 따라서, 본 연구에서는 기존의 물리·화학적 수처리 공정인 용존공기부상법(Dissolved Air Flotation, DAF)에 물의 전기분해 시발생하는 브라운가스를 활용하여 응집된 물질을 빠르게 부상시켜 수체 내 오염물질을 제거할 수 있는 기술을 통해 수체 내 미세플라스틱 저감효과를 분석하였다. 또한, 해당 기술을 공공수역인 저수지에 적용하여 오염물질과 함께 미세플라스틱을 제거할 수 있는지 검토하였다.

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A Structural Relationship between the Related Variables of Adolescence's Suicidal Ideation (청소년의 자살생각 관련변인들 간의 인과적 구조분석 : 가족응집성, 가족적응성, 자아존중감, 집단따돌림, 그리고 우울을 중심으로)

  • Moon, Dae-Geun;Lee, Jin-Ju;Lee, Jong-Kak;Koim, Jung-Min;Moon, Soo-Back
    • Korean Journal of Child Studies
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    • v.34 no.3
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    • pp.93-112
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    • 2013
  • The purpose of this study was to investigate the structural relationships between variables related to the Suicidal Ideation of Adolescences. A total of 923 Middle school students residing in Daegu City completed questionnaires which assessed family adaptability, family cohesion, self-esteem, bullying victimhood, depression and suicidal ideation. The sample variance-covariance matrix was analyzed using AMOS 20.0, and a maximum likelihood minimization function. Goodness of fit was evaluated using the SRMS, RMSEA, and its 90% confidence interval, CFI, and TLI. The results were as follows : First, the variables of family adaptability and family cohesion did not have a statistically significant direct impact on adolescence's suicidal ideation, although they may well have an indirect effect on suicidal ideation through self-esteem, bullying victimhood and depression. Second, Self-esteem and bullying victimhood had significant direct effects on depression and suicidal ideation. Moreover, they also had an indirect effect on suicidal ideation through self-esteem. Third, depression had a substantial direct effect on suicidal ideation. Finally, self-esteem did not indicate a direct effect on bullying victimhood.

Probiotic Characterization of Fructobacillus fructosus F2 Isolated from Honeybee Larvae (꿀벌 유충에서 분리된 Fructobacillus fructosus F2의 프로바이오틱스 특성 분석)

  • Woo Young Bang
    • Journal of Life Science
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    • v.34 no.10
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    • pp.691-700
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    • 2024
  • Frutobacillus spp. strains (Fs) were isolated from honeybee larvae to evaluate their functionality and potential use as probiotics. Anti-microbial activity was generally observed in F strains against Gram-negative, Gram-positive, and yeast strains, with F2 and F3 being superior, particularly F2. Kerosene emulsification was similarly observed in strains other, except for F4. Emulsification analysis based on carbon sources showed that F2 had high emulsification in the presence of fructose but lower than the standard strain and 16S rDNA sequence analysis revealed that the F2 was identified as Fructobacillus fructosus. The growth curve of F2 showed maximum growth at 18 hr, followed by a slight increase. Furthermore, antimicrobial activity and pH showed maximum and minimum values at 18 hr, respectively, and remained constant thereafter. Lactic acid content showed a slight decrease after reaching its maximum value at 24 hr of culture. Acid resistance was observed up to pH 2.5, but completely lost at pH 2.0. Bile acid resistance was generally strong. F2's adhesion to mucin was higher compared to S. Typhimurium, which increased until 18 hr of culture and then decreased. Enzyme activity according to anaerobic culture time was high for carboxymethylcellulase (CMCase), avicelase, and mannase, regardless of the presence of fructose. Auto- and co-aggregation were higher compared to the standard strain, and surface hydrophobicity was high for chloroform, which indicates electron donor properties. Therefore, the Fructobacillus fructosus F2 can be considered a potential probiotic due to its excellent anti-microbial, emulsification, acid resistance, bile resistance, CMCase, mannase, and auto- and co-aggregation properties.

Study on shape of floc size distribution (플럭의 입도분포의 형태에 관한 고찰)

  • Son, Minwoo;Byun, Jisun
    • Proceedings of the Korea Water Resources Association Conference
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    • 2020.06a
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    • pp.181-181
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    • 2020
  • 점착성 유사는 유사가 가지는 점착력에 의해 응집현상을 겪으며 그 크기와 밀도가 변화한다. 유사의 크기와 밀도는 침강속도에 직접적인 영향을 주며 침강속도으 변화는 유사의 거동에 매우 중요한 작용을 한다. 따라서 점착성 유사의 크기 특성을 파악하는 것은 매우 중요하다. 이전의 많은 연구는 점착성 유사의 입도분포가 대수정규분포를 따른다고 주장하고 있다. 그러나 그 가정이 합리적인지에 대해 분석한 연구는 많지 않다. 본 연구는 통계학적 방법 중 적합도 검정을 이용하여 실제 점착성 유사가 어떠한 분포를 모사하는지 분석하였다. 사용된 적합도 검정 방법은 Kolmogorov-Sminorv(K-S) 검정이며 적합도 판정의 기준은 유의수준 5%를 기준으로 하였다. 그 결과, 실험실 실험에서 측정된 플럭의 입도분포와 현장 실험에서 측정된 입도분포는 다른 결과를 보였다. 현장 실험의 경우, 분포가 오른쪽으로 왜곡된 지수분포의 형태를 나타냈으며, Gamma 분포가 가장 우수하게 모사하였다. 실험실 실험의 경우 일반적인 양의 왜도를 가지는 분포를 나타냈으며 GEV분포가 점착성 유사의 입도분포를 가장 잘 모사하였다. 대수정규 분포의 경우 일반적으로 이용하는 2-매개변수 대수정규분포일 경우 현장실험과 실험실 실험 모두 적합하지 않았다. 그러나 위치 매개변수를 추가하여 3-매개변수 대수정규분포를 사용하면 점착성 유사의 입도분포를 잘 모사하는 것으로 판단된다. 따라서 점착성 유사의 입도분포를 무조건적으로 대수정규분포로 사용하는 것은 지양해야할 것으로 판단된다.

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Quality Characteristics of a Korean Rice Cake (Karedduk) with Mixture of Trehalose and Modified Starch by Using Response Surface Methodology (반응표면분석을 이용한 트레할로스와 변성전분 혼합사용 떡의 품질 특성)

  • Kim, Sang-Sook;Chung, Hae-Young
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.38 no.3
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    • pp.377-383
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    • 2009
  • Texture and descriptive sensory characteristics of a Korean rice cake (Karedduk) added with mixture of trehalose and Sun-Tender were investigated after 2, 24, and 48 hrs of storage at $5^{\circ}C$. A central composite design was used for treatment arrangement. The trehalose were added in 0, 3, 6, 9 and 12% levels and Sun-Tender added in 0, 0.3, 0.6, 0.9, and 1.2% levels to dry rice flour. The mixture amounts of trehalose and Sun-Tender on texture and descriptive sensory characteristics of a Korean rice cake (Karedduk) were optimized using response surface methodology (RSM). The two independent variables selected for the RSM were amounts of trehalose ($X_1$) and amounts of Sun-Tender ($X_2$). The predicted value at stationary point or a minimum for texture hardness by RSM was found as 591.5440 after 24 hrs of storage at $5^{\circ}C$. Also the adhesiveness, hardness, cohesiveness and sweetness by sensory characteristics were significantly different as compared to the control. The results suggested that a Korean rice cake (Karedduk) added with mixture of trehalose and Sun-Tender can be made from the mixture amounts of trehalose 9.5826% and Sun-Tender 0.2216% in retarding retrogradation.

Relationship between Dyadic Adjustment and Personality Dimensions in Married Women (기혼 여성의 부부 적응도와 성격 차원간의 연관성)

  • Lee, Hyo-Geun;Joe, Sook-Haeng;Kim, Jung-Woong
    • Korean Journal of Psychosomatic Medicine
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    • v.11 no.2
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    • pp.182-195
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    • 2003
  • Background: Marriage is one of the major life events and the primary source of individual happiness and meaning of life. It is not possible to predict who will marry whom and which marriage will be successful. Marital adjustment has significant influences on an individual and relationship functioning and is associated with mental health. Good marital quality may imply good general relationship. There are several factors that correlate with or predict good marital quality. Especially individual personality factors may be a major factor in achieving and maintaining marital stability, satisfaction and happiness. The aim of the present study was to investigate the possible relationship between dyadic adjustment and personality dimensions in urban married women. Methods: Dyadic Adjustment Scale, Eysenck's Personality Questionnaire, Beck Depression Inventory and State-Trait Anxiety Inventory were administered to 215 married women. Data analysis was based on 170 women who provided reliable informations. The descriptive statistics of demographic data and 4 scales were obtained. Then the possible relationships between each data were tested by calculating Pearson's product moment correlations. To test the effects of depression and anxiety on dyadic adjustment, stepwise multiple regression analysis was done. Results: Age and length of marriage were negatively correlated with affectional expression and dyadic cohesion. Educational level was positively correlated with total dyadic adjustment score and dyadic satisfaction. Family income was positively correlated with total dyadic adjustment score, dyadic consensus, dyadic satisfaction and dyadic cohesion. Different family type showed different total dyadic adjustment score, dyadic satisfaction and dyadic cohesion. Psychoticism was negatively correlated with total dyadic adjustment score, dyadic consensus, dyadic satisfaction, affectional expression and dyadic cohesion. Neuroticism was negatively correlated with total dyadic adjustment score, dyadic consensus, dyadic satisfaction and affectional expression. Extraversion and lie were not correlated with any factors. Beck Depression Inventory and State-Trait Anxiety Inventory scores were negatively correlated with total dyadic adjustment score, dyadic consensus, dyadic satisfaction, affectional expression and dyadic cohesion. The result of multiple regression analysis indicated that psychoticism was correlated with dyadic adjustment. Conclusion: These results showed that the demographic factors such as age, length of marriage, educational level, family income and family type were significantly correlated with dyadic adjustment. Psychoticism and neuroticism measured by Eysenck Personality Inventory were significantly correlated with dyadic adjustment. But the correlations with extraversion and lie were not significant. Especially correlation between neuroticism and dyadic adjustment seemed to be mediated by emotional state such as depression and anxiety. These findings suggest that personality factors may be involved in marital relationship and that clinician must consider personality aspect in dealing with marital problems. Future study about differences between control group and psychiatric patient group will be needed.

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Analysis of Coordination Ambiguity in Korean (한국어 병렬문의 중의성 분석)

  • 이호동;박종철
    • Language and Information
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    • v.7 no.2
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    • pp.59-79
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    • 2003
  • Coordination in natural language is often syntactically explained by the rule schema X \longrightarrow X′ and X", where X′ and X" refer to expressions of a like syntactic type. While this schema does explain a lot of instances of coordination, it is well known that this schema also gives rise to serious structural ambiguity, leading not only to numerous unintended interpretations but also to a high degree of unnecessary computational complexity. In order to identify intended interpretations, we need to take into account a number of clues at all the levels of morphology, syntax, semantics, and pragmatics/discourse. In this paper, we propose, with an accompanying data analysis, principles of symmetry and coherency for an effective and reasonable identification of intended interpretations from coordination-bearing sentences.

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Physicochemical Properties and Sensory Evaluation of Meat Analog Mixed With Different Liquid Materials as an Animal Fat Substitute (동물성 지방 대체재로 첨가된 액상 재료에 따른 식물성 고기의 이화학적 특성 및 관능검사)

  • Kim, Honggyun;Bae, Junhwan;Wi, Gihyun;Kim, Hyo Tae;Cho, Youngjae;Choi, Mi-Jung
    • Food Engineering Progress
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    • v.23 no.1
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    • pp.62-68
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    • 2019
  • In this study, the physical and sensorial properties of the meat analog were studied for the purpose of improving sensory preference and mimicking animal meat. The meat analog was made with different types of liquid materials such as oil, water, lecithin, polysorbate 80, or the emulsion of these components. At the aspect of density, the sample mixed with oil was higher than the sample mixed with water. Cooking loss value was higher at the sample with water than the sample with oil and this was the result opposite to the liquid holding capacity analysis. Also, texture profile analysis result showed that the samples with medium chain triglycerides (MCT) oil only showed the highest values in all attributes except for adhesiveness. Principal component analysis was carried out to analyze sensorial properties and it showed that the overall acceptance was high when the juiciness and softness increased. This result was highly related with the addition of emulsion. Therefore, emulsion technology can be a good candidate for improving the quality of meat analog and for mimicking the taste of animal meat.