• 한국식품저장유통학회지
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• 제24권7호
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• pp.965-974
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• 2017

본 연구에서는 영양학적 가치가 높은 쌀귀리의 식품산업 이용률을 높이고자 쌀귀리를 입도별로 제조하여 이들의 이화학적 특성 및 항산화 활성을 비교하였다. 쌀귀리의 조단백질, 조지방 및 조회분 함량이 각각 15.7%, 10.0% 및 1.8%이었으며, 입도가 작아질수록 이들의 함량은 감소하였다. 주요 유리아미노산은 비필수아미노산 중에서는 cystine(58.3 mg%), ${\beta}$-aminoisobutyric acid(53.8 mg%) 등, 필수아미노산 중에서는 phenylalanine(8.6 mg%)과 histidine (12.2 mg%)이었으며, 입도가 작아질수록 함량은 감소하였다. 총 전분, 아밀로스, 손상전분, 총 식이섬유, ${\beta}$-glucan 및 총 유리당 함량은 각각 56.4%, 21.4%, 11.7%, 11.0%, 4.7% 및 2,555.3 mg%이었으며, 입도가 작아질수록 총 전분, 아밀로스 및 손상전분의 함량은 감소한 반면에 총 식이섬유와 ${\beta}$-glucan의 함량은 증가하였다. 색도는 L 값이 75.3, a 값이 0.3 및 b 값이 13.1이었으며, 입도가 작아질수록 L 값은 증가하였으나 a와 b 값은 감소하였다. 호화특성은 최고점도가 263.8 RVU, 최저점도가 155.6 RVU 및 최종점도가 399.3 RVU이었으며, 입도가 작아질수록 최고점도와 최종점도는 증가하였다. TPC, TFC 및 항산화 활성(DPPH radical assay, ABTS radical cation assay 및 reducing power)은 각각 $237.8{\mu}g/g$, $90.9{\mu}g/g$, 57.3%, 53.4% 및 0.23이었으며, 입도가 작아질수록 항산화 성분 및 항산화 활성은 감소하였다. 한편 TPC와 TFC에 관한 각 항산화 활성의 결정계수(correlation determination coefficient, $R^2$) 값이 각각 0.87 이상과 0.81 이상으로 나타나 항산화 성분과 항산화 활성은 상관성을 보였다.

• 보건교육건강증진학회지
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• 제31권1호
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• pp.71-83
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• 2014

Objectives: This study examined the trend of alcohol-related research, with a specific focus on adolescent problem drinking, to provide evidence for prevention and intervention for adolescent alcohol problems and alcohol policy in Korea. Methods: A total of 17 studies examining adolescent problem drinking were included for meta-analysis. Using CMA (Comprehensive Meta-Analysis) 2.0, the effect sizes of correlation coefficients of variables related to adolescent problem drinking were analyzed. Results: 176 variables were extracted under 4 higher categories and 20 sub-categories. Variables were extracted using the four higher categories, namely individual, family, environmental, and demographics, as the theoretical framework. Results showed that most studies on adolescent problem drinking focused mostly on individual factors followed by family factors. Variables including drinking motivation, drinking expectancy, and peer relations showed relatively higher effect size. Conclusions: Study findings suggest the importance of balance between individual and environmental factors in examining problem drinking among adolescents. In order to provide evidence for alcohol policy, more attention should be given to macro environment that are known to influence adolescent drinking.

• Communications for Statistical Applications and Methods
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• 제10권1호
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• pp.115-123
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• 2003

In this paper, we discuss the usefulness of AB/BA/AA/BB crossover design sense of sample size. The result is that the AB/BA/AA/BB crossover design is more economical than AB/BA one if large carryover effect exists and so is it in the comparison with completely randomized design within-subject correlation is large.

• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 1994년도 특별강연 및 추계학술발표 개요집
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• pp.111-114
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• 1994

This paper describes a method to measure a weldment surface temperature for estimating variations of the weld pool size in the gas metal arc(GMA) welding processes. An Infrared sensing system is designed to measure the radiation emitted from the top surface of the weldment, The interference effect of the electric arc to the measurement is rejected by detecting the low peaks of the noisy signal. An optimizing criterion, in which the correlation between the weld quality and the measured temperature is maximized, is also proposed to determine the optimal measurement location.

• Asian Pacific Journal of Cancer Prevention
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• 제14권1호
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• pp.189-193
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• 2013

Many epidemiological studies in Asian populations have investigated associations between the Arg399Gln gene polymorphism of X-ray repair cross complementing gene 1 (XRCC1) and risk of cervical carcinoma, but no conclusions have been available because of controversial results. Therefore a meta-analysis was conducted for clarification. Relevant studies were identified by searching the Pubmed, Embase, the Web of Science, Cochrane Collaboration's database, Chinese National Knowledge Infrastructure (CNKI), Wanfang database and China Biological Medicinse (CBM) until September, 2012. A total of eight studies were included in the present meta-analysis, which described 1,759 cervical carcinoma cases and 2,497 controls. Odds ratios (ORs) and corresponding 95% confidence intervals (95%CIs) as effect size were calculated by fixed-effect or random-effect models. The overall results indicated that the XRCC1-399G/A polymorphism was marginally associated with cervical carcinoma in Asians: OR (95%CI): 1.16 (1.07, 1.26) in the G/A vs G/G inheritance model, 1.24 (0.87, 1.76)in A/A vs G/G inheritance model, 1.13 (1.01, 1.27) in the dominant inheritance model and 1.18 (0.94, 1.47) in the recessive inheritance model. Subgroup analyses on sample size showed no significant correlation in the small-sample size group but the large-sample size group was consistent with the outcomes of overall meta-analysis. In the subgroup analysis by regions, we only found significant association under the G/A vs G/G inheritance model in the Chinese population. For the non-Chinese populations, no correlation was detected in any genetic inheritance model. In the Asian populations, XRCC1-399G/A gene polymorphism was implied to be associated with cervical carcinoma.

• 대한기계학회논문집B
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• 제28권4호
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• pp.449-455
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• 2004

The objective of this study is to obtain the correlation between the spray characteristics and the etching characteristics for the optimization of etching system in the micro fabrication industry. The etching characteristics such as etching rate were measured under different conditions. The single spray characteristics such as droplet size and velocity were measured by PDA system. These were compared to the etching characteristics. The twin spray characteristics in the overlap region were analyzed to predict the effect of them on the etching characteristics with the pitch and also were compared to the single spray. The etching rate was increased in case of high spray pressure and in the region of spray center. It was found that the etching characteristics could be correlated with the single spray characteristics and the twin spray characteristics were correlated with the etching characteristics.

• 한국품질경영학회:학술대회논문집
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• 한국품질경영학회 2010년도 춘계학술대회
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• pp.183-190
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• 2010

The study is to examine the causal correlation between communication skill of organization and their job performance. In our model, we used these variables-innovation awareness, job satisfaction, organizational commitment as a parameter. In order to verify the hypothesis based on research model, a survey among researchers(sample size=117) who work in food company was carried out. Analyzing hypothesized model and following the statistical procedure, we could assure that these exist positive correlation with communication skill, innovation awareness, job satisfaction, organizational commitment and organization performance. A coefficient of coffelation between those variables was clearly high in the group with good communication skill. Among the parameters, the variable of innovation awareness was more effected on their job performance.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2008년도 춘계학술대회논문집
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• pp.839-843
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• 2008

Receiving room's floor impact sound level is been influenced to various factor of slab thickness, room size, structure etc. This study examined the noise of upper part slab and room mode in receiving room to be importance factor that influence in receiving room level among this factors. According to this study, vibration mode in slab and room mode are concentrated on frequency that is high level relatively. This causes bad effect in floor impact sound level. Therefore, method to reduce floor impact sound level is to change vibration mode using slab upper part's resilient material or reduce room mode in receiving room.

• 한국잠사곤충학회지
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• 제10권
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• pp.67-72
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• 1969

In order to analyse the correlation between the parents and their hybrids in the silkworm, which were reared in spring, the author has surveyed the various quantitative characters which are significant in genetics, and the hybrid vigor rate. The duration of larvae life is shorter in F1 Value an in the mid parents value, cocoon size biffer, pupa rate, cocoon crop from ten thousand silkworms just molted in the fourth instar, total cocoon weight and cocoon layer weight increases in comparison with the mid parents value. Although cocoon layer ratio only shows increasing by 0.3％ or so, it is too little to admit the effect. F1 value is nearly equal to parent value and there is no correlation between F1 hybrids value and their mid parents value.

• 한국정밀공학회지
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• 제20권1호
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• pp.214-221
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• 2003

In this study, based on the effect of the interaction of fracture mechanics by graphite and fatigue limit phenomena of the microscopic observation various matrix structure, spheroidal ratio, size of graphite and distribution etc. parameters containd with Ductile Cast Iron. Therefore, in this study, different ferrite-pearlite matrix structure and spheroidal ratio of graphite of 70%, 80% and 90%, GCD40, GCD45-1 and GCD45-2 series and three different ferrite-pearlite matrix structure, GCD 45-3, GCD 50, GCD 60 series, all of which contain more than 90% spheroidal ratio of graphite, were used to obtain the correlation between mean size of spheroidal graphite and fatigue strength. (1) 73% pearlite structure had the highest fatigue limitation while 36% pearlite structure had the lowest fatigue limitation among ferrite-pearlite matrix. the increase in spheroidal ratio with increasing fatigue limitation, 90% had the highest, 14.3% increasing more then 10%, distribution range of fatigue life was small in same stress level. (2) (equation omitted) of graphite can be used to predict fatigue limit of Ductile Cast Iron. The Statistical distribution of extreme values of (equation omitted) may be used as a guideline for the control of inclusion size in the steelmaking processes.