• 한국근적외분광분석학회:학술대회논문집
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• 한국근적외분광분석학회 2001년도 NIR-2001
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• pp.1091-1091
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• 2001

Previous reports have shown that Near Infrared Spectroscopy (NIRS) can be used to assess physical and chemical properties of flax fibre and fabric quality. Currently, spinners assess yarn quality mainly based on strength and regularity measurements. There two key characteristics are influenced by quality of raw fibres used, especially the degree of rotting and strength. The aim of this investigation was to evaluate the use of NIRS for assessing quality of weft grade yarn available on the commercial market. In order to develop the NIR calibrations, a range of samples representing poor, medium and good quality weft yarn samples was included in the calibration and validation sample sets. The samples were analysed for physical and chemical parameters including caustic weight loss, fibre fractions, lipid, ash and minerals. A detailed protocol for assessing yarn quality has been developed to maximize the accuracy of the reflectance spectra. The development of partial least squares regression models and validation of the calibration equations using blind samples will be presented and discussed.

• Journal of Biosystems Engineering
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• 제35권2호
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• pp.124-131
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• 2010

Chlorophyll fluorescence has been researched for assessing fruit post-harvest quality and condition. The objective of this preliminary research was to investigate the potential of fluorescence spectroscopy for measuring apple fruit quality. Ultraviolet (UV) and blue light was used as an excitation source for inducing fluorescence in apples. Fluorescence spectra were measured from 'Golden Delicious' (GD) and 'Red Delicious' (RD) apples using a visible/near-infrared spectrometer after one, three, and five minutes of continuous UV/blue light illumination. Standard destructive tests were performed to measure fruit firmness, skin and flesh color, soluble solids and acid content from the apples. Calibration models for each of the three illumination time periods were developed to predict fruit quality indexes. The results showed that fluorescence emission decreased steadily during the first three minutes of UV/blue light illumination and was stable within five minutes. The differences were minimal in the model prediction results based on fluorescence data at one, three or five minutes of illumination. Overall, better predictions were obtained for apple skin chroma and hue and flesh hue with values for the correlation coefficient of validation between 0.80 and 0.90 for both GD and RD. Relatively poor predictions were obtained for fruit firmness, soluble solids content, titrational acid, and flesh chroma. This research has demonstrated that fluorescence spectroscopy is potentially useful for assessing selected quality attributes of apple fruit and further research is needed to improve fluorescence measurements so that better predictions of fruit quality can be achieved.

• 정보관리학회지
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• 제22권1호
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• pp.267-285
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• 2005

1990년도부터 확산되기 시작한 미국 공공도서관 인터넷 서비스의 활성화로 새로운 측면의 도서관 e-서비스에 대한 이해와 측정 평가가 중요한 문제점으로 대두되어 왔다. 이에 본 연구에서는 미국 공공도서관의 인터넷 서비스 품질 평가에 영향을 미치는 주요 결정 요인과 이용자 서비스 만족도 및 서비스 리퍼럴(service referral)과의 관계를 제시하기 위하여 마케팅 경영 분야에서 서비스 품질 평가의 대표적 모델로 알려진 SERVQUAL과 SERVPERF 그리고 현재 미국 대학도서관에서 각광을 받고 있는 도서관 품질 평가 모델인 LibQUAL+ 모델들을 비교 분석하였고 이를 활용하여 인터넷 서비스 품질 평가 모델을 개발함으로써 4가지 주요 인터넷 품질 평가 요인 및 이용자 서비스 만족도와 서비스 리퍼럴(service referral)의 관계를 구체적으로 제시하였다.

• International Journal of Computer Science & Network Security
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• 제22권8호
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• pp.61-66
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• 2022

Digital education has emerged all over the world with a new wave of learning innovations and opportunities. Higher education institutions need to develop the digital competence of future specialists and train teachers who are creative individuals, have the skills to use digital technologies, and are able to solve problems, make important decisions, effectively manage their own lives, and realize their potential. In this aspect, the strategy for evaluating the results of the educational achievements of future specialists is important. The purpose of the article is to analyze the use of distance technologies in higher education institutions in the context of the development of a system for assessing the quality of education. Methodology implies the application of theoretical methods of analysis.

• 비교교육연구
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• 제19권1호
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• pp.25-58
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• 2009

대학의 기능 수행에 대한 사회적인 관심이 증대되어 대학의 질 제고와 대학의 질 평가가 중요한 과제로 인식되고 있다. 이에 이 연구는 대학의 질 개념을 정립하고, 정립된 질 개념에 터하여 대학의 질적 수준을 종합적으로 진단할 수 있는 지표를 개발하는 데 연구의 주된 목적을 두었다. 종합적인 문헌분석과 연구진 검토를 통해 목표/목적 달성, 고객요구충족, 가치부가 측면을 강조한 투입-과정-산출 체제로서의 대학의 질 개념을 설정하였다. 설정된 대학의 질 개념을 바탕으로 하여 미국, 영국, 호주, 일본 등 주요국에서 사용되고 있는 대학기관인증평가, 대학순위평가, 학생설문조사, 학습성과평가 등 4가지 유형의 질적 수준 분석 도구에 포함된 지표들(6개국 13개 평가도구)을 분석한 뒤 대학의 질적 수준 평가 지표 초안을 마련하였고, 전문가 검증과 연구진 검토를 통해 최종 지표들을 개발하였다. 이러한 지표들은 투입-과정-산출 차원에서 기관목표, 인적자원, 물적자원, 교육과정, 학습활동, 교육산출, 연구산출의 영역으로 구성되었다. 개발된 지표가 대학의 질 제고를 유도하는 순기능 역할을 발휘하는 데 필요한 사항들이 제안되었다.

• 환경영향평가
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• 제20권1호
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• pp.71-78
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• 2011

This paper aims to assessing impact of reduction of non-point source pollution in the Bokha Stream watershed. The BASINS/HSPF model was calibrated and verified for water flow and water qualities using Total Maximum Daily Load 8days data from 2006 to 2007. Accuracy of the BASINS/HSPF models in simulating hydrology and water quality was compared and there were somewhat differences of statistical results, but water flow and water quality were simulated in good conditions over the study period. The applicability of models was tested to evaluate non-point source control scenarios to response hydrology and water quality in the Bokha stream using various measures which include BMPs approach and change of landuse. The evaluation of reduction of non-point source pollution was developed using load-duration curve. Despite strong reduction of non-point source, there are not satiated target quality at low flow season.

• Journal of Information Processing Systems
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• 제16권2호
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• pp.508-521
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• 2020

We compared a novel encoding Lempel-Ziv complexity (ELZC) with three common complexity algorithms i.e., approximate entropy (ApEn), sample entropy (SampEn), and classic Lempel-Ziv complexity (CLZC) so as to determine a satisfied complexity and its corresponding quality indices for assessing quality of multi-lead electrocardiogram (ECG). First, we calculated the aforementioned algorithms on six artificial time series in order to compare their performance in terms of discerning randomness and the inherent irregularity within time series. Then, for analyzing sensitivity of the algorithms to content level of different noises within the ECG, we investigated their change trend in five artificial synthetic noisy ECGs containing different noises at several signal noise ratios. Finally, three quality indices based on the ELZC of the multi-lead ECG were proposed to assess the quality of 862 real 12-lead ECGs from the MIT databases. The results showed the ELZC could discern randomness and the inherent irregularity within six artificial time series, and also reflect content level of different noises within five artificial synthetic ECGs. The results indicated the AUCs of three quality indices of the ELZC had statistical significance (>0.500). The ELZC and its corresponding three indices were more suitable for multi-lead ECG quality assessment than the other three algorithms.

• 품질경영학회지
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• 제30권3호
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• pp.66-78
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• 2002

Process capability indices are being used as indicators for measurements of process capability for SPC of quality assurance system in industries. In view of the enhancement of customer satisfaction, process capability indices in which loss functions are used to deal with the economic loss In the processes deviated from the target, are in an adequate representation of the customer's perception of quality In this connection, the loss function has become increasingly important in quality assurance. Taguchi uses a modified form of the quadratic loss function to demonstrate the need to consider the proximity to the target while assessing its quality. But this traditional quadratic loss function is inadequate to assessing the quality and quality improvement since different processes have different sets of economic consequences on the manufacturing, Thereby, a flexible approach to the development of the loss function needs to be desired. In this paper, we introduce an easily understood loss function, based on reflection of probability density function of the normal distribution. That is, the Reflected Normal Loss function can be adapted to an asymmetric loss as well as to a symmetric loss around the target. We propose that, instead of the process variation, a new capability index, CpI using the Reflected Normal Loss Function that can accurately reflect the losses associated with the process and a new capability index CpI Is compared with the classical indices as $C_{p}$ , $C_{pk}$, $C_{pm}$ and $C_{pm}$ $^{+}$.>.+/./.

• 성인간호학회지
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• 제21권3호
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• pp.339-348
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• 2009

Purpose: We aimed to describe and compare the cognitive function, anxiety, and quality of life for the demented elderly in day care centers or nursing homes. Methods: We selected 44 subjects from day care centers and 63 subjects from nursing homes by performing convenience sampling. The Korean version of Mini Mental Status Examination was used for measuring cognitive status; Rating Anxiety in Dementia, for assessing anxiety; Korean Version of Quality of Life-Alzheimer's Disease, for assessing the quality of life. The data were collected from May to June 2008 and analyzed by SPSS/WIN 14.0. Results: 1) The cognitive function of the subjects in the day care center was higher than that of the subjects in the nursing home. Anxiety in the subjects in the nursing home was higher than that in the subjects in the day care center. 2) The cognitive function and quality of life of the subjects in the day care center showed statistically significant correlation, 3) The anxiety and quality of life of the subjects in the nursing home showed statistically significant correlation. Conclusions: Nursing interventions that improve the quality of life of the demented elderly should be considered and applied according to the degree of cognitive function and anxiety.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.2250-2255
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• 2011

There has been a growing interest toward railroad conjunction with opening of high-speed rail in 2004 and concurrent implementation of nation's green growth policies. Meanwhile, users' expectation on service of public transportation, especially railroad has been growing than since ever due to heightened quality of life, entering aging society, voice of equity for minorities, and greater interest in environments of communities. In order to come up with the expectations, actual improvements for user's convenience/comfort and its assessment strategies in terms of service quality level are necessary. This study defines the index of this aspect of service level as 'Sensitivity Quality'. This is conceived as one of the important factors to define travel cost as do the travel time and fare, but hardly taken into consideration when assessing a transportation system or policy-making for a transportation project. The elements included for the assessment of the sensitivity quality in this study are feeling of a ride, conformability and convenience what users feel and recognize using a train. This paper suggests that establishing sensitivity quality elements would contribute in foundation of assessing service quality and provide improved public transportation services through their scientific and objective development and management.