• 한국식품영양과학회지
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• 제36권12호
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• pp.1583-1588
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• 2007

PC 카메라를 이용하여 식초, 우유 및 탁주의 산도 적정을 자동화하였다. 피적정액의 화상에서 선택된 144개 pixel의 hue값의 평균값을 일정 시간 간격으로 산출하고, 이 평균값의 변화를 추적하여 적정액의 공급을 제어하는 방법을 사용하였다. 식초와 우유의 적정에서는 hue값 평균값이 적정전보다 5이상 증가하는 것을 종말점으로 하였으며, 탁주의 경우에는 70이상 증가하는 것을 종말점으로 하였다. 이 방법을 식초, 우유 및 탁주의 산도 적정에 적용한 결과, 식초의 경우에는 수동적정과 자동적정의 0.1 N NaOH용액의 소요량이 각각 $21.409{\pm}0.066mL$ 및 $21.403{\pm}0.055mL$였고, t-test 결과 p값이 0.841이었다. 우유의 경우에는 수동적정과 자동적정의 0.1 N NaOH용액의 소요량이 각각 $1.390{\pm}0.025mL$ 및 $1.388{\pm}0.027mL$였고, p값은 0.907이었다. 탁주의 경우에는 수동적정과 자동적정의 0.1 N NaOH용액의 소요량이 각각 $4.738{\pm}0.028mL$ 및 $4.752{\pm}0.037mL$였고, p값은 0.518이었다. 세가지 경우 모두 유의수준 0.05에서 유의차가 인정되지 않았으므로(p>0.05), 본 연구의 자동적정 방법을 산도 적정에 응용할 수 있다고 생각되었으며, 색변화를 이용하여 종말점을 검출하는 대부분의 적정에 무리 없이 적용할 수 있다고 생각되었다.

• 한국조리학회지
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• 제16권4호
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• pp.190-205
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• 2010

본 연구에서는 패밀리 레스토랑 고객을 대상으로 패밀리 레스토랑의 물리적 환경에 따른 고객의 감정 반응, 만족도 및 재방문 의도에 미치는 영향을 고찰하고, 성별과 연령에 따른 조절 효과를 검증하였다. 자기기입식 설문 방법으로 총 600명의 패밀리 레스토랑 고객을 대상으로 설문조사를 실시하였으며, 이중 438부를 SPSS와 Amos 프로그램을 사용하여 분석하였다. 분석 철과, 패밀리 레스토랑 고객이 지각하는 물리적인 환경은 긍정적 감정 ($\beta$0.388)과 부정적 감정($\beta$=-0.148)에 각각 유의한 영향을 주는 것으로 나타났다. 또한 패밀리 레스토랑 고객의 긍정적 감정 ($\beta$=0.828)은 만족도에 유의한 영향을 주었으나 부정적 감정($\beta$=-0.014)은 만족도에 유의한 영향을 주지 않는 것으로 나타났으며, 감정으로 기인된 고객 만족도는 재방문 의도($\beta$=0.771)에 유의한 영향을 주는 것으로 조사되었다. 그러나 패밀리레스토랑의 물리적 환경, 감정 반응, 만족도 및 재방문 의도의 인과관계에서 고객의 성별과 연령에 따른 조절효과는 존재하지 않았다.

• 생물정신의학
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• 제16권3호
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• pp.149-158
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• 2009

Objectives : This study was designed to investigate the association of schizophrenia and P1320, P1325, P1635, P1655, P1763 and SNP A polymorphisms on dystrobrevin binding protein 1(DTNBP1) gene in Korean patients. Methods : We analyzed P1320, P1325, P1635, P1655, P1763 and SNP A polymorphisms on DTNBP1 gene from their DNAs extracted from their blood in 388 Korean schizophrenic patients (male 198, female 190) and 372 control subjects(male 247, female 125). We compared the differences of genotype and allele distributions of the six polymorphisms on DTNBP1 gene between the Korean schizophrenic patient group and the normal control group. Results : There were no statistically significant differences of genotype and allele distributions of the P1320, P1325, P1635, P1655, P1763 and SNP A polymorphisms on DTNBP1 gene between the schizophrenic patient group and the normal control group. Conclusion : The results of this study suggest that P1320, P1325, P1635, P1655, P1763 and SNP A polymorphism on DTNBP1 gene do not have influence on the risk of the schizophnenic in the Korean population.

• 기본간호학회지
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• 제20권4호
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• pp.381-388
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• 2013

Purpose: This study was done to investigate nurses' awareness of death and the meaning of life and identify factors influencing the meaning of life. Methods: Participants were 198 women nurses who had experienced the death of patients. They answered a self-administered questionnaire including demographics, awareness of death scale and meaning in life II scale. Data were analyzed using descriptive statistics, t-test, ANOVA, Scheff$\acute{e}$ test, and multiple regression (enter method). Results: The average score for awareness of death was $127.3{\pm}10.14$. This score is moderate not biased toward positive or negative. The average score for meaning of life was $130.3{\pm}9.42$ with 51% for loss steps, 45.5% for pursuit steps and 3.5% for discovery steps to the meaning of life. Factors affecting the meaning of life were religion, Buddhism (${\beta}=6.25$, p=.015) or Atheist (${\beta}=5.91$, p=.017), educational level, Master's or higher (${\beta}=16.22$, p=.003), work department, special department (${\beta}=3.49$, p=.017). Conclusions: Results of the study indicate a need to provide nursing programs that will promote nurses' spiritual and inner maturity.

• 대한화학회지
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• 제33권4호
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• pp.388-398
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• 1989

기체 감응막전극을 이용하여 수용액 중의 아질산이온을 연속${\cdot}$자동화법으로 정량하는 방법을 개발하였다. 이 방법에서 최종검출기로 쓴 이온선택성 전극은 관형 PVC막 pH 전극이었다. 장치계의 최적조건에서 구한 아질산이온 표준시료에 대한 전극의 감응기울기는 63.5mV/decade 이었으며, 직선감응 범위는 $2.5{\times}10^{-4}\; M{\sim}7.5 {\times} $10^{-2}$M 이었고, 검출한계는 $8.0{\times} 10^{-5}$M이었다. 이 방법은 다른 정량법보다 산성기체종의 방해를 적게 받을 뿐만 아니라 정량에 필요한 시간도 훨씬 단축할 수 있었다.

• Mycobiology
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• 제35권1호
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• pp.6-10
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• 2007

Present experiments were conducted to determine the possibility of artificial culture with various sawdust of P. gilvus. The pH value was 6.0 of oak sawdust, 6.5 of mulberry sawdust, 6.6 of elm sawdust, 6.3 of acacia sawdust and 6.1 of apple tree sawdust. Mycelial density on elm sawdust and acacia sawdust were lower than those of oak sawdust, and apple sawdust. Weight of fresh fruiting body showed that 179 g on oak tree, 227 g on oak sawdust, 21 g on elm tree, 76 g on elm sawdust, 106 g on apple tree, and 170 g on apple sawdust. Among them, the yield of oak substrates was the highest whereas acacia sawdust was the lowest, and it is concluded that the yields of sawdust substrates were higher than log substrates. P. gilvus grown on various sawdusts and logs used in this study have shown similar in anti-tumor activity against P388.

• 한국응급구조학회지
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• 제22권3호
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• pp.117-129
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• 2018

Purpose: The purpose of this study was to assess empathy and resilience among healthcare college students. Methods: A self-reported questionnaire was filled out by healthcare college students from August 13 to October 13, 2018. Mean and standard deviation, t-test, analysis of variance, Pearson's correlation coefficients, and linear regression were used to analyze the data. Results: The average score for perspective taking was 3.57(${\pm}0.48$), fantasy 3.39(${\pm}0.59$), empathic concern 3.57(${\pm}0.39$), personal distress($3.02{\pm}0.48$), and resilience $3.37{\pm}$(0.41). There was a significant positive correlation between perspective taking (r=.388, p<.001) and resilience. Factors influencing resilience were perspective taking fantasy(${\beta}=.219$, p<.001), empathic concern(${\beta}=.207$, p=.004), and personal distress(${\beta}=-.303$, p<.001). Conclusion: More studies are needed to develop the empathy improvement program for healthcare college students.

• 한국직업건강간호학회지
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• 제32권4호
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• pp.195-204
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• 2023

Purpose: The purpose of this study was to investigate the effects of nursing workplace spirituality, job embeddedness, and the nursing work environment on the organizational commitment of clinical nurses. The findings of the study will serveasafoundational resource for designinginterventions to improvenurses' organizational commitment. Methods: The samples of this study comprised 170 nurses working at general hospitals in B City. Data were analyzed through the SPSS 25.0 program using ANOVA, t-test, Scheffé test, Pearson's correlation coefficient, and multiple regression. Results: The primaryfactors impactingparticipants' organizational commitment were nursing workplace spirituality (β=.388, p<.001), nursing work environment (β=.232, p=.001), position (β=.145, p=.009),and pay satisfaction (β=.143, p=.012). These factors had an explanatory power of 51.4% with regard to organizational commitment. Conclusion: To improve nurses' organizational commitment, it is necessary to implementand developintervention programs aimed atincreasingtheir sense of workplace spirituality. Moreover, organizational management and policy initiatives are needed to foster apositivenursing work environment and pay satisfaction.

• 간호행정학회지
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• 제6권3호
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• pp.375-388
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• 2000

This study was attempted to help in explore new direction about Clinical Classification System of the pediatric patients visiting emergency center. Data were collected from 276 patients who visited emergency center of E University Hospital during 3 months period form March 1, to May 31, 1999. The results were as follows: 1. Distribution of pediatric patients according to Clinical Classification System, class I(59.9%) topped followed by class II(23.9%), class III(14.1%), class IV(2.0%). Average score of pediatric patients according to Clinical Classification System showed class I.00, class II .02, class III .05, class IV .07. and total mean score of items lowed averaged .01. 2. With the resepect to the Clinical Classification System according to the pediatric patients visiting emergency center, there were stastically significant difference in visiting time($x^2=27.839$, P=.023), experience of admission($x^2=11.365$, p=.010), disease classification($x^2=89.998$, p=.000), state of airway patency($x^2=18.781$, p=.000), consciousness level($x^2=59.774$, p=.000), period of symptom manifestation($x^2=34.112$, p=.000), pediatric patients protector's thinking about pediatric patients state($x^2=49.998$, p=.000), treatment outcome($x^2=72.278$, p=.000), duration of stay at emergency center($x^2=103.062$, p=.000). 3. There were significant correlation between the state of pediatric patients and Clinical Classification System(r=.530, p=.000).

• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 춘계학술대회논문집A
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• pp.383-388
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• 2001

Effects of particle property variation of cone crack shape according to impact velocity in silicon carbide materials were investigated. The damage induced by spherical impact having different material and size was different according to materials. The size of ring cracks induced on the surface of specimen increased with increase of impact velocity within elastic contact conditions. The impact of steel particle produced larger ring cracks than that of SiC particle. In case of high impact velocity, the impact of SiC particle produced radial cracks by the elastic-plastic deformation at impact regions. Also percussion cone was formed from the back surface of specimen when particle size become large and its impact velocity exceeded a critical value. Increasing impact velocity, zenithal angle of cone cracks in SiC material was linearly decreasing not effect of impact particle size. An empirical equation, $\theta=\theta_{st}-\upsilon_p(180-\theta_{st})(\rho_p/\rho_s)^{1/2}/415$, was obtained from the test data as a function of quasi-static zenithal angle of cone crack($\theta_{st}$), the density of impact particle(${\rho}_p$) and specimen(${\rho}_s$). Applying this equation to the another materials, the variation of zenithal angle of cone crack could be predicted from the particle impact velocity.