• Proceedings of the KSME Conference
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• 2004.11a
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• pp.244-249
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• 2004

In this paper, shielding effectiveness(SE) of the shielding paint of electromagnetic(EM) waves was investigated with actual experiments. The shielding paint used in this study were made of powder of conductive materials - Ag, Cu, Al, Sn, Ni. Cr, Graphite and Charcoal etc. with a solubility in oil and water. Also, the paper was used as a base sheet. The experiment was carried out by using a shielding evaluator(Shielding box) TR17302 with an ADVANTEST spectrum analyzer, model R3361C. It was found from the experimental results that silver, copper, nickel were good candidates as a shielding material against the EM waves with increasing the SE as the composite was laminated. The characteristics of the SE against the EM waves depended on a mode of preparation of specimen. The effects of density of particles on the SE were studied about the EM shielding paint. The SE strongly depended on the electric resistance by density of painting particles. SE increased as the density of particles was increasing.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.15 no.8 s.101
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• pp.945-953
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• 2005

The purpose of this paper is to develop a linear regression model for the sound quality index of vehicle Interior noise. For this, objective measurement data of the vehicles driving in acceleration was measured. On the basis of analysis, psychoacoustic parameters were extracted and subjective evaluation was performed by noise and vibration expert evaluators. For the subjective evaluation, the paired comparisons and the semantic differential methods were used to evaluate sound quality of vehicle interior noise. By the paired comparison which evaluate two pairs of vehicle interior noise, the preference was estimated. With the semantic differential and the factor analysis, it was evaluated words of two pairs which expressed appropriately the sense of evaluator about noise source. Therefore the characteristics of the sound qualify for the vehicle were differentiated. From the results of both the correlation analysis and the multiple factor regression analysis, the sound quality evaluation model for the sense of human hearing was derived and indexed.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.20 no.2
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• pp.131-138
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• 2010

This technical report was developed to suggest the guideline to assess the safe use and handling metalworking fluids (MWFs) in machining operation. The basis of this method developed in this study was based on self assessment procedure recommended by Organization Resources Counselors (ORC) of the United States (US). In addition, various MWF management elements obtained from the review on various articles, reports and author's experience regarding MWF were newly added to the evaluation guideline. A total of four areas were finally selected in order to control exposure to MWF used in machining operations. They are all related to the presence and efficiency of the control measures, exposure assessment, management on tank and sump, and safe treatment of chips and metal fines generated during machining operations. Each area is consisted of several related elements. Several evaluation areas and elements used in this study could be revised, replaced, added and deleted according to the process environment, evaluation objectives and evaluator's (manager) criteria etc. This evaluation guide manual could be used for safe management of MWF in metalworking operation. In addition, industrial hygienists can use this evaluation method for auditing and evaluating the management status on MWF.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.9 no.7
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• pp.2667-2682
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• 2015

Due to the wide application of face recognition (FR) in information security, surveillance, access control and others, it has received significantly increased attention from both the academic and industrial communities during the past several decades. However, partial face occlusion is one of the most challenging problems in face recognition issue. In this paper, a novel method based on linear regression-based classification (LRC) algorithm is proposed to address this problem. After all images are downsampled and divided into several blocks, we exploit the evaluator of each block to determine the clear blocks of the test face image by using linear regression technique. Then, the remained uncontaminated blocks are utilized to partial occluded face recognition issue. Furthermore, an improved Distance-based Evidence Fusion approach is proposed to decide in favor of the class with average value of corresponding minimum distance. Since this occlusion removing process uses a simple linear regression approach, the completely computational cost approximately equals to LRC and much lower than sparse representation-based classification (SRC) and extended-SRC (eSRC). Based on the experimental results on both AR face database and extended Yale B face database, it demonstrates the effectiveness of the proposed method on issue of partial occluded face recognition and the performance is satisfactory. Through the comparison with the conventional methods (eigenface+NN, fisherfaces+NN) and the state-of-the-art methods (LRC, SRC and eSRC), the proposed method shows better performance and robustness.

• Journal of Fisheries and Marine Sciences Education
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• v.27 no.1
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• pp.74-82
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• 2015

The Admission Officer System is a selecting system that evaluates potential and talent of students in multiple aspects and selects whom each university wants to pick and fits the specific recruitment units. However, the issue about fairness of the system has been discussed continually. This study conducted online survey, using fairness checklist with 31 universities to know how admission officers perceive the fairness of the system and secure that. Also, three times of expert FGI were conducted, too. The result shows there are still many universities that adjustment for deviated evaluation in interview, separation of operating agency, stabilization of the statue of admission officers, analyzation of each evaluator's tendency, and so on are not achieved well. To assure the fairness of the admission officer system, securing validity by clearly defining the concept of fairness is proposed first. Stabilizing the statue of admission officers and continuous education training for them is also proposed to improve their professionality. Furthermore, expansion of education programs about the admission officer system in both quantity and quality is suggested for fairness of the system.

• Korean Journal of Computational Design and Engineering
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• v.16 no.5
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• pp.380-389
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• 2011

Esthetic appeal of a product is often affected by the appearance quality of seams forming between components of the product. The appearance quality of seams is, however, assessed in a very subjective and qualitative manner that heavily depends on the evaluator. This paper presents a preliminary study to quantify such assessment by formulating a quantitative index which is a linear function of the seam gap sizes, seam gap ranges, and the size uniformity of seam gaps. By considering a highly simplified problem of a drawer system and utilizing subjective assessments by twenty evaluators, the index has been formulated. The validity of this index has been confirmed by observing its behavior with changes of the component tolerances. Also, the utility of this index has been demonstrated through a selective assembly scheme applied to the drawer system problem. Though the index formulated in this study for seam appearance quality may be useful, future studies are necessary to make the model readily applicable to real problems.

• Journal of Computational Design and Engineering
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• v.2 no.1
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• pp.38-46
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• 2015

Augmented reality based on projection, called "Spatial Augmented Reality (SAR)", is a new technology that can produce immersive contents by overlapping virtuality and real-world environment. It has been paid attention as the next generation digital contents in media art and human-computer interaction (HCI). In this paper, we present a new methodology to evaluate the product appearance design more intuitively by means of SAR technique. The proposed method first projects the high-quality rendered image considering the optical property of materials onto the mock-up of a product. We also conduct a projector-camera calibration to compensate a color distortion according to a projector, a projection surface and environment lighting. The design evaluation methodology we propose offers more flexible and intuitive evaluation environment to a designer and user (evaluator) than previous methods that are performed via a digital display. At the end of this research, we have conducted a case study for designing and evaluating appearance design of an automobile.

• Journal of Digital Contents Society
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• v.13 no.4
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• pp.483-490
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• 2012

The evaluation procedure of friendly-environment Preliminary certification is traditionally done by hand. It takes much time and a lot of manpower. Sometimes it is subject to the evaluator's experience. The solution to these problems is to systematize the evaluation procedure. The system can provide an objective standard for evaluation. It can develop more reliable standard, prevent errors, and save time. Therefore, this research suggests the evaluation system using the architectural information based BIM. To do this, the current study examines the possibility of evaluation system of friendly-environment Preliminary certification.

• Journal of Families and Better Life
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• v.23 no.1 s.73
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• pp.139-149
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• 2005

This study is to compare the quality of child care centers in Sweden and Korea and the mothers' satisfaction of each center. In this study, the quality of 27 preschools in Sweden and 24 child care centers was evaluated by external evaluator using the Early Childhood Environment Rating Scale (ECERS). A total of 436 Korean mothers and 197 Swedish mothers responded to the questionnaire regarding their satisfaction of their child's attending child care centers. The results show that the quality of Swedish preschool was significantly higher than Korean child care centers. The quality of Swedish preschools tended to be good whereas the quality of Korean child care centers was somewhat minimal. Specifically, the category of 'Furnishings and display for children' was the highest score in Swedish preschool, however, the category of 'Adult needs' was the highest score in Korean child care centers. The mothers' satisfaction of the centers was significantly different between two countries. The Swedish mothers were highly satisfied with the close location of preschool but Korean mothers were highly satisfied with the teachers of child care centers. However, both mothers in two countries were less likely satisfied with the facility equipments. The results were discussed in terms of cultural and child care program differences further.

• The Journal of Korean Academic Society of Nursing Education
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• v.5 no.1
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• pp.106-117
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• 1999

A study was conducted to identify the perceptions about health education competence and satisfaction of nursing profession, and the relationship between health education competency and satisfaction of nursing profession in nursing students. The subjects were 118 nursing students who were third year at a diploma course. The results of this study are as follows : 1) In domain of health education process, the highest level of competency was the need assessment of the individual health education(mean : 3.62) and the lowest level of competency was the evaluation of heath education program(mean : 2.93. 2) In domain of health education method, the level of competency was estimated ordered as counselling and interview (mean : 3.53), health campaign(mean : 3.42), demonstration(mean : 3.30), role play (mean : 3.28), group discussion (mean : 3.25), lecture(mean : 3.10). 3) In domain of health education place, the level of competency was estimated ordered as of patient education while giving individually care(mean : 3.68), at home(mean : 3.67), in the classrom(mean : 3.67), in the community(mean : 3.35), while teaching with group patients at hosital(mean : 3.30). 4) In domain of activities of health educator, the level of competency was ordered as collaborator(mean : 3.59), coordinator(mean : 3.31), material developer(mean 3.14), program evaluator(mean : 3.13), program designer(mean 3.10). 5) Health education competency was found to be significantly related to satisfaction of professional nursing.