• Asian-Australasian Journal of Animal Sciences
• /
• 제4권1호
• /
• pp.79-83
• /
• 1991

Diurnal variation in faecal chromic oxide levels was estimated from 4 hourly faecal sampling of 56 wethers allotted to one of six different feeding patterns. Sampling occurred on days 6 and 7 (Period 1) after a controlled release device was administered, and was repeated on days 14 and 15 (Period 2) following re-randomisation of the wethers to the feeding patterns. Increasing the frequency of feeding tended to be associated with higher faecal chromic oxide levels (p < 0.05), particularly in wethers fed thrice daily at 8 hour intervals. There was no interaction between feeding pattern and period, sampling day or time within-day. There were significant period x time within-day (p < 0.05) and day x time within-day (p < 0.001) interactions, indicating that variation in faecal chromic oxide between sample times was not consistent. This implies that sampling at any time of day is unlikely to result in a biased estimate of pasture intake, providing sufficient samples are collected. Significant period (p < 0.001) and period x day (p < 0.01) effects were associated with slow faecal chromic oxide equilibration in period 1. Equilibration did not occur until after day 7, indicating a need for caution when commencing sampling.

• 시큐리티연구
• /
• 제36호
• /
• pp.57-92
• /
• 2013

본 연구는 경호 및 무도 전공 대학생의 진로준비행동에 영향을 미치는 변수들의 구조적 관계를 규명함으로써 진로준비행동이 취해지는 매커니즘(mechanism)을 확인하고, 연구의 결과를 바탕으로 진로 준비행동을 촉진할 수 있는 제언을 하고자 한다. 이를 위해 경기도 지역 경호전공과 무도전공 대학생을 모집단으로 설정 하였다. 이에 따른 표집방법은 비확률 표본추출법(nonprobability sampling)중 유의표집(purposive sampling)방법이며, 총 434부가 자료 분석에 이용되었다. 본 연구에서는 전공만족과 무도수련만족을 독립변수로 설정하고, 진로결정 자기효능감과 진로준비행동을 각각 매개변수와 종속변수로 설정하였다. 연구의 주요 연구결과를 요약하여 정리하면 다음과 같다. 첫째, 전공만족은 진로결정 자기효능감에 정(+)적인 영향을 나타냈다. 둘째, 무도수련만족은 진로결정 자기효능감에 정(+)적인 영향을 미치는 것으로 나타났다. 셋째, 전공만족은 진로준비행동에 부(-)적인 영향을 미치는 것으로 확인되었다. 넷째, 매개변수인 진로결정 자기효능감은 진로준비행동에 정(+)적인 영향을 미치는 것으로 나타났다. 또한 전공만족과 진로준비행동의 관계에서 매개역할을 하는 것으로 나타났다. 다섯째, 전공 집단별 잠재평균분석 결과, 전공만족, 무도만족, 진로결정 자기효능감 및 진로준비행동 변인에서 차이가 나타났다.

• The Journal of Asian Finance, Economics and Business
• /
• 제8권4호
• /
• pp.491-499
• /
• 2021

The purpose of this study was to examine the moderating effect of attitude toward green brand on green brand positioning and repurchase intention of environmentally friendly products, product knowledge on attitude toward green brand and the effect of green product knowledge on green repurchase intention. This study uses a structural equation approach with a sample size of 175 and uses an eight-point Likert scale. The data collection technique used purposive sampling. The criteria for respondents are to use environmentally friendly cosmetic products and the respondents live in Central Java and have consumed more than two times. Online sampling using google form. Data were analyzed using statistical software AMOS 22. The results showed that green brand positioning has a significant effect on repurchase intention. Attitude toward green brand has a positive effect in mediating the relationship between green brand positioning and repurchase intention. Similarly, green brand knowledge has a positive effect on attitudes, although green knowledge has no positive effect on repurchase intention. Product positioning in the minds of consumers is important in shaping attitudes. It is important for companies to continue to develop environmentally friendly products so that product positioning can be distinguished from competitors' products.

• The Journal of Asian Finance, Economics and Business
• /
• 제8권7호
• /
• pp.265-273
• /
• 2021

The aim of this study is to analyze the correlation between concept perceptions and people's attitudes in halal tourism, development perceptions and people's attitudes, attitude and people's interest, concept perceptions and people's interest, development perceptions and people's interest, concept perceptions and people's interest, and development perceptions and people's interest. The method used in this research is SEM (Structural Equation Modeling) method. The population in this study was all Banten people. The samples in this study were respondents in five districts/cities in Banten, namely Tangerang (127 respondents), Serang (63 respondents), Pandeglang (97 respondents), Lebak (69 respondents), and Tangerang City (62 respondents). The sampling technique used is cluster random sampling. The data collection method used by researchers is a survey through filling out an online questionnaire. Based on regression test results shows concept perceptions has a significant effect on people's attitudes Development perceptions has no significant effect on people's attitudes, the attitude has no significant effect on people's interest, concept perceptions have no significant effect on people's interest, development perceptions have no significant effect on people's interest. Concept perceptions have no significant effect on people's interests through people's attitudes. Development perceptions have no significant effect on people's interests through people's attitudes.

• The Journal of Asian Finance, Economics and Business
• /
• 제9권5호
• /
• pp.553-560
• /
• 2022

This study investigates the effect of job satisfaction as a mediator of job placement on employees' organizational commitment in the Sumatra-Indonesia energy sector. Permanent personnel of a PGU unit power plant in Sumatra, Indonesia, made up the population and sample. The sampling technique used was saturated sampling of 129 employees. The research model and hypotheses were tested using multiple regression analysis. This study indicate that job placement has a significant positive effect on job satisfaction. Simultaneously, job placement does not have a significant positive effect on organizational commitment. Secondly, job satisfaction has a significant positive effect on organizational commitment and finally, job satisfaction mediates the relationship between job placement and organizational commitment. The results of this study indicate that job placement has a significant positive effect on job satisfaction. Therefore, the right job placement will lead to employee job satisfaction. Another finding is that job placement has a positive and insignificant effect on organizational commitment. Furthermore, job satisfaction has a significant positive effect on organizational commitment. The results of this study indicate that the higher the job satisfaction of the PGU unit employees in the Sumatra area, the higher the level of employee organizational commitment will be.

• International Journal of Advanced Culture Technology
• /
• 제8권4호
• /
• pp.144-152
• /
• 2020

The purpose of this study is to examine the effects of university students' media sports immersion experience through social media on exercise immersion and exercise continuation. This research target was first selected as a population of university students who have contacted media sports aged 20 or older living in Gwangju Metropolitan City in 2019. The sampling procedure was divided into five parts: Dong-gu, Seo-gu, Nam-gu, Buk-gu, and Gwangsan-gu in Gwangju, and 300 men and women were sampled using cluster random sampling. After individually entering coded data into the computer, the statistical program (SPSS Windows.20.0 Version) was used. The results obtained through this research process are as follows. First, it was found that university students' immersion to media sports had a partial effect on their commitment to exercise. Second, it was found that university students' immersion in media sports had a partial effect on the continuation of the exercise. Third, it was found that college students' exercise commitment has a partial effect on exercise continuation.

• 한국지진공학회논문집
• /
• 제13권4호
• /
• pp.67-76
• /
• 2009

최근에 Active interaction control(AIC) 시스템이 준능동 제어 시스템의 하나로 제안되었다. AIC 시스템은 제어 대상 구조물과 보조 구조물로 구성되며, 두 구조물간의 실시간 결합-분리를 통해서 제어 대상 구조물을 제어하게 된다. 구조물간의 결합과 분리를 담당하는 장치의 실시간 변환은 스위칭 제어 알고리듬의 결합-분리 조건식에 의해 제어된다. 기존 스위칭 제어 알고리듬의 경우, 제어 대상 구조물의 응답을 효과적으로 감소시키는 반면 불필요하게 큰 제어력과 과도한 결합-분리 횟수를 필요로 하는 단점을 가지고 있다. 본 논문에서는 구조물간의 효율적인 결합-분리 조정을 위해서 스위칭 활성화 영역과 스위칭 비활성화 영역을 분리 표현하였으며, 결합-조건식에 의해 결정되는 스위칭 활성화 영역과 스위칭 비활성화 영역간의 일반적인 관계를 포괄 스위칭 틀을 이용하여 나타냈다. 과도한 결합-분리 횟수와 불필요하게 큰 제어력의 효과적인 감소를 위해서 새로운 스위칭 제어 알고리듬의 결합-분리 조건식은 포괄 스위칭 틀안에서 설계되었다. 또한 기존 논문에서 사용된 컨트롤 샘플링 주기(Control sampling period)의 역할을 결합-분리 횟수의 관점에서 재해석하였다. 제안된 알고리듬의 효용성과 컨트롤 샘플링 주기의 역할을 검증하기 위해서 단자유도 모델을 이용하여 자유진동에 대한 수치해석을 수행하였다. 수치해석결과, 총 스위칭 횟수를 감소시키기 위한 컨트롤 샘플링 주기의 인위적인 연장은 시스템의 제어 성능 향상에 필요한 구간 변환을 샘플링 주기 사이에서 억제시키는 단점을 가지고 있음을 확인하였다. 본 논문에서 제안된 알고리듬의 경우, 각각 과도한 결합-분리 횟수와 불필요하게 큰 제어력을 감소시키는데 효과적임을 알 수 있다.

• Journal of the Korean Statistical Society
• /
• 제32권2호
• /
• pp.175-191
• /
• 2003

An empirical Bayesian approach is discussed for estimation of characteristics from the two-way balanced rotation sampling design which includes U.S. Current Population Survey and Canadian Labor Force Survey as special cases. An empirical Bayesian estimator is derived for monthly effect under presence of two types of biases and correlations It is shown that the marginal distribution of observation provides more general correlation structure than that frequentist has assumed. Consistent estimators are derived for hyper-parameters in Normal priors.

• Journal of the Korean Data and Information Science Society
• /
• 제15권2호
• /
• pp.379-386
• /
• 2004

This paper deals with a mixed logit model for vaccination data. The effect of a newly developed vaccine for a certain chicken disease can be evaluated by a noninfection rate after injecting chicken with the disease vaccine. But there are a lot of factors that might affect the noninfecton rate. Some of these are fixed and others are random. Random factors are sometimes coming from the sampling scheme for choosing experimental units. This paper suggests a mixed model when some fixed factors need to have different experimental sizes by an experimental design and illustrates how to estimate parameters in a suggested model.

• 대한산업공학회지
• /
• 제13권2호
• /
• pp.97-103
• /
• 1987

Skip-Lot sampling plan is formulated in terms of renewal process. This approach facilitates studying the average outgoing quality in a short production run of length t, AOQ (t). By numerical studies it is found that the long-run average outgoing quality (AOQ) greatly overestimates AOQ (t) for short runs.