• Journal of Platform Technology
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• 제11권4호
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• pp.62-70
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• 2023

이 논문은 농수산물 생산자가 도매시장에 상품을 출하하는 시기와 양을 결정하는 것을 돕기 위한 시스템을 구축하기 위한 일련의 과정 중 일부이다. 기존 농수산물 출하모델에서 사용하지 않은 품질변화효과를 모델링하고, 그 통계적 유의성을 확인한 후, 시스템에 도입하는 것이 이 연구의 목적이다. 이를 위해 연구자는 품질변화효과를 측정할 수 있는 네 가지 모델을 개발하였다. 시간이 지남에 따라 1) 품질이 일정하게 떨어지는 경우, 2) 품질이 처음에 급속히 떨어지다가 나중에는 천천히 떨어지는 경우, 3) 품질이 처음에 천천히 떨어지다가 나중에는 급속히 떨어지는 경우, 4) 품질이 낮았다가 시간이 흐른 후 높아지다가 다시 감소하는 경우를 모델링하였다. 각 모델의 품질변화효과가 출하량에 미지는 영향을 2014-2021년 사이에 가락도매시장에서 거래된 사과를 대상으로 실증분석 해 본 결과에 따르면 네 모델 모두 품질변화효과에 유의성을 발견하였다. 그리고 네 모델 간 설명력에 유의한 차이는 없었다. 따라서 네 개 모델 중 어느 하나를 선택해서 사과에 대한 출하시기의사결정시스템에 적용시킬 수 있는 것으로 나타났다.

• 한국정보시스템학회지:정보시스템연구
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• 제22권1호
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• pp.29-64
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• 2013

This study empirically investigates the effect of self presentation on SNS to interpersonal relation and quality of life. Especially, we performed exploratory analysis that how SNS affect to quality of life and wether the change of interpersonal relation is mediating effect to quality of life and intention to use. And we also suggest that the capability of communication would be a moderator. In the results, firstly, the using SNS has significantly positive effect on the change of interpersonal relation. And it as mediation variable can positive impact on the relationship between the using SNS, quality of life, and Intention to use. In the moderating analysis, SNS users who responded higher communication capability have significantly more higher effect on the change of interpersonal relation and quality of life. Secondly, the change of interpersonal relation after use of SNS as a mediation variable serves to enhance the relationship between the use of SNS and the quality of life in the positive direction.

• 한국콘텐츠학회논문지
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• 제15권3호
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• pp.123-132
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• 2015

본 연구의 목적은 노인일자리사업 참여자의 일자리사업 참여만족, 경제상태만족 및 자기가치감 변화와 삶의 질의 구조적 관계를 실증적으로 분석하는 것이다. 본 연구에는 노인일자리사업 참여노인 실태조사(2012)의 데이터가 분석에 사용되었다. 분석 결과, 일자리사업 참여만족, 경제상태만족 및 자기가치감은 삶의 질에 직접적으로 영향을 미칠 뿐 아니라, 일자리사업 참여만족은 경제상태만족과 자기가치감을 통하여 삶의 질에 유의미하게 영향을 미쳤다. 또한 경제상태만족과 삶의 질의 관계에서 자기가치감이 간접효과를 지니는 것으로 나타났다. 이를 통하여 본 연구는 향후 노인일자리사업 수행에 있어 정책적 실천적 함의를 제시하였다.

• 한국식품영양과학회지
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• 제28권4호
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• pp.755-759
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• 1999

To evaluate the effect of sterilizing method on the quality of iron fortified market milk, HTST(high temperature, short time) or LTLT(low temperture, long time) method was adopted after addition of 100ppm ferrous sulfate, ferric citrate, ferric ammonium citrate, or ferrous lactate in market milk. Sterilized iron fortified market milk was stored at 4oC and then pH, lipid oxidation, color change, and sensory quality were observed. The range of pH change in iron fortified market milk sterilized by HTST or LTLT was 6.51~6.74. The order of pH was control>ferric ammonium citrate>ferrous lactate>ferrous sulfate>ferric citrate. Oxygen consumption of ferric ammonium citrate and ferric citrate was lower than ferrous lactate and ferrous sulfate. This trend was same in HTST and LTLT method, but generally oxygen consumption was lower in iron fortified market milk sterilized by LTLT method than by HTST. In total color change, ferrous lactate treatment was closer to control than other treatments. Also sensory characteristics of ferrous lactate treatment was showed better quality than other treatment. From these results, LTLT method was more suitable than HTST method for iron fortified market milk and ferrous lactate was comparably suitable among iron salts used in this study.

• 디지털융복합연구
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• 제12권11호
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• pp.415-426
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• 2014

본 연구는 실증적 검증을 통해 노인의 건강상태가 수면의 질과 삶의 질에 미치는 영향을 파악하여 요양병원에서 노인 간호의 질적인 개선을 위한 간호중재 방안을 제시하고자 하였다. 경기도와 부산광역시에 위치한 5개의 요양병원에 입원한 60세 이상의 노인 170명을 대상으로 2013년 5월 8일부터 28일까지 설문조사를 실시하였다. 요인 분석 결과 노인의 건강상태는 정서적 기능, 체력, 일상생활활동, 사회적 역할, 몸의 변화, 사회적 기능, 통증으로 구분되었으며, 정서적 기능과 통증은 수면의 질에 부적 영향을 미쳤고, 몸의 변화와 일상생활활동은 삶의 질에 긍정적인 영향을 미쳤다. 요양병원 노인 간호의 질적인 향상을 위해서는 입원한 노인의 통증과 정서적 문제를 조기에 발견하여 수면의 질을 향상시키기 위한 노력이 필요하며, 노화에 따른 몸의 변화와 일상생활 활동을 살펴 적절히 대처하기 위해서 요양병원 특성을 고려한 신체사정 및 건강증진 간호중재전략을 개발하는 것이 필요하다.

• Journal of Information Technology Applications and Management
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• 제15권4호
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• pp.123-136
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• 2008

This study tried to find out the effect of change management on the ERP performance in small and medium size companies. Communication, BPR management, education and training were selected as independent variables which might bring an effect on ERP performances which were classified as quality and quantity one. Structure equation model was built and analyzed with AMOS 5.0 version from data gathered through 127 companies which already implemented ERP systems. The result of this study shows that all the three independent variables give positive impacts on two dependent variables, which means change management is critical when small and medium size companies want to implement ERP systems.

• 산업경영시스템학회지
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• 제17권32호
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• pp.95-103
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• 1994

This paper is to appraise the effect of factory noise to work performance and quality. Stamp printing, which are decomposed into work element is used to compare with work performance according to the change of noise, and quality is studied to analyse the effect of product. The noise in experiment is the noise of rotary press, and is used a variety of change.

• 한국농공학회논문집
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• 제61권2호
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• pp.25-39
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• 2019

The water pollution Accident in the South Han River is increasing due to increase of pollutants inflow from small streams from rural areas and reduced flow rate. This study predicted the change of water quality in the main stream of the South Han River due to climate change through the linkage of watershed and water quality models. Also, This study analyzed the effect of water quality improvement on Seomgang and the South Han River by securing the flow during the dry season. According to the scenarios for securing the river flow during drought season, the river flow in the Seomgang is increased up to 2.19 times, and the water quality during the drought season was improved up to $BOD_5$ 20.5%, T-N 40.8%, T-P 53.4%. Also, the water quality of the main stream of the South Han River improved to 5.22% of $BOD_5$, 5.42% of T-N and 7.69% of T-P as the river flow was secured from the Seomgang. The result of this study confirms that securing the baseflow in the Seomgang according to the scenarios for securing the river flow during the dry season has a positive effect on the improvement of the water quality of the rivers in the main river of the Seomgang and South Han River. The results of this study will contribute to the establishment of reasonable management to improve the water quality of the main stream of the Seomgang and South Han River.

• 융합경영연구
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• 제3권3호
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• pp.1-6
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• 2015

Quality auditor and auditors of larger firms have a positive effect on profit is unusual. The auditors smaller negative effect on profit companies profit is unusual. Change to larger audit shows the quality of earnings and to respond more investors positive changes in income and increased costs and reduced profitability is less negative price changes. Similarly, switching to a smaller auditor confirms the low quality of earnings, resulting in a negative response to the market. In this article market reaction (response investors) the quality of the audit and the auditor were studied in the Tehran Stock Exchange. in general, information about companies in capital market accounting to investors and the capital market is considered to be valuable.

• 환경생물
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• 제22권1호
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• pp.89-92
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• 2004

The effects of different light quality on the change of membrane potential difference (PD) of the guard cell in the intact leaf have been investigated. The mombrane PD was about -5.5 mV by white light of 600 $\mu$moles $m^{-2}\; s^{-1}$. The mean PD of change caused by red light was about -5.2 mV at the light intensity of 80 $\mu$moles $m^{-2}\; s^{-1}$. Membrane PD of guard cells in response to blue light was saturated at low light intensity. However, red and green light enhanced the change of membrane PD of guard cells with increasing intensity. In green light the biggest change of memrane PD was around -4 mV, whereas, with blue light the change of of memrane PD was around -2 mV. Accordingly, the membrane PD of guard cell showed the different degree of hyper-polarization by each wavelength.