• Title/Summary/Keyword: Area gap

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Prioritizing quality attributes using I-S Gap analysis (중요도-만족도 격차분석을 이용한 품질 속성의 우선순위 결정)

  • Song, HaeGeun;Lim, Sung Uk
    • Journal of Korean Society for Quality Management
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    • v.43 no.2
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    • pp.127-140
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    • 2015
  • Purpose: To obtain the area for improvement, the Importance-Performance analysis(IPA) uses relatively simple questions, that is, satisfaction and importance at attribute level. However, no attempt has been made to consider the gap between own company's performance and those of competitors in IPA, in the field of quality management. This study is aimed to suggest a new prioritizing method for improvement and to test for validity of the proposed technique. Methods: This study used data collected from Song and Lim(2015), which is satisfaction of employees, customers and competitors as well as importance data for 7 quality attributes of K animal hospital. A correlation comparison with other priority methods such as Bacon(2003)'s model and Matzler and Hinterhuber(1998)'s QI index is conducted. Results: The priority results by the proposed method shows better in correlation coefficient with customer perceived priority for improvement than other methods. Conclusion: From the result of the current study, it can be concluded that the result of the proposed method is valid, while it is relatively easy to understand and analyze, and therefore no additional survey is necessary for improvement priority.

Development of Proximity Exposure System with Vertical Structure for Plasama Display Panel (PDP용 수직형 구조의 근접 노광장치 개발)

  • Park, Jeong-Gyu;Jeong, Su-Hwa;Lee, Hang-Bu
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.24 no.9 s.180
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    • pp.2371-2380
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    • 2000
  • In this paper, we developed the proximity exposure system with the vertical structure of glass and mask stage to minimize the mask's warp caused by the pull of gravity. This system, which canirradiate the ultra violet through 1440 H 850 $\textrm{mm}^2$ and 1330X 1015 $\textrm{mm}^2$ exposure area, has the followingcharacteristics. The glass stage can be inclined by 80 degrees at vertical structure to load substrate withsafety on it. When the glass stage is the vertical state, the gap control, alignment control and exposureof ultra violet are executed. So, it enhances the pattern uniformity by minimizing the mask's warp. Theglass stage can also control the gap between the mask and the substrate by the coarse and fine motioncontrol. The mask stage can adjust the posture of photomask to the position of substrate by imageprecessing method. The galss stage for the gap control and the mask stage for the alignment aredesigned independently for each function.

Sengmaek-san-mediated Enhancement of Axonal Regeneration after Sciatic Nerve Injury in the Rat

  • Baek, Kyung-Min;Kim, Yoon-Sik;Ryu, Ho-Ryong;Jo, Hyun-Kyung;An, Jung-Jo;Namgung, Uk;Seol, In-Chan
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.2
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    • pp.431-437
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    • 2008
  • Sengmaek-san(Shengmai-san; SMS) is used in oriental medicine as one of the key herbal medicine for treating diverse symptoms including cardiovascular and neurological disorders. In the present study, the effects of SMS on axonal regeneration were investigated in the rat model given sciatic nerve injury. SMS treatment enhanced axonal regrowth into and the number of non-neuronal cells in the distal area after crush injury. GAP-43 protein levels were increased in the injured sciatic nerve compared to intact nerve and further upreguated by SMS treatment. GAP-43 protein was increased similarly in the dorsal root ganglion (DRG) at lumbar 4 - 6 by nerve injury and SMS treatment, suggesting GAP-43 induction at gene expression level. SMS-mediated increase in phospho-Erk1/2 protein was observed in the DRG as well as in the injured nerve implying its retrograde transport into the cell body as the process of lesion signal transmission. The present findings suggest that SMS may be involved in enhanced axonal regeneration via dynamic regulation of regeneration-associated proteins.

Effects of Air Gap on HTS Magnet Consisting of Double Pancake Windings

  • Ku, Myung-Hwan;Kang, Myung-Hun;Kim, Young-Min;Lee, Hee-Joon;Cha, Guee-Soo
    • Progress in Superconductivity and Cryogenics
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    • v.11 no.4
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    • pp.33-36
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    • 2009
  • An air gap between the pancake windings was provided in this paper to increase the central magnetic field of a high temperature superconducting (HTS) magnet consisting of pancake windings. Unlike the LTS magnet, providing an air gap between the pancake windings increases the central magnetic field of a HTS magnet. Furthermore, the uniformity of the magnetic field near the center of the magnet increased because the pancake windings spread out in wider area. Effects of the air gap on the central magnetic field of an HTS magnet was described in this paper, Calculation of the critical current was carried out by using E-J relation of the HTS wire and the optimization technique was adopted to obtain the appropriate critical current which could maximize the central magnetic field. Pancake windings with BSCCO-2223 HTS wire were wound on glass epoxy bobbin. 6 double pancake windings with 200 turns were used to construct a HTS magnet. Characteristics of the HTS magnet including the central magnetic field and the uniformity of the magnetic field were measured and compared with the results of calculation.

A Study on the Characteristics of the Floor Plan of Skilled Nursing Facilities for the Elderly in Rural Areas (노인요양시설의 평면 특성에 관한 고찰)

  • Yang, Kum-Suek
    • Journal of the Korean Institute of Rural Architecture
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    • v.18 no.1
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    • pp.39-46
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    • 2016
  • The purpose of this study is to clarify the actual conditions of the floor area of skilled nursing facilities in rural area. The thorough investigation and observation works were made from the viewpoints of floor area of the skilled nursing facilities. This article discusses about the basic condition and the floor area for daily living activities of the elderly in 3 skilled nursing facilities in west gyeongnam province. As the result, There is a wide gap between floor area ratio of skilled nursing facilities. The characteristics of the private establishment skilled nursing facilities in the west gyeongnam province were figured out through the analysis of spatial composition in skilled nursing facilities for the elderly. The skilled nursing facilities in west gyeongnam mainly focus on the living environment orientated toward the bedroom. The difficulty is to encourage the communication between the skilled nursing facility patients because the facilities are composed of small semi-public zone.

A Re-Examination of the Area formula of triangles as an invariant of Euclidean geometry (유클리드 기하의 고유한 성질로서의 삼각형 넓이 공식에 대한 재음미)

  • Choi Young-Gi;Hong Gap-Ju
    • The Mathematical Education
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    • v.45 no.3 s.114
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    • pp.367-373
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    • 2006
  • This study suggests that it is necessary to prove that the values of three areas of a triangle, which are obtained by the multiplication of the respective base and its corresponding height, are the same. It also seeks to deeply understand the meaning of Area formula of triangles by exploring some questions raised in the analysis of the proof. Area formula of triangles expresses the invariance of congruence and additivity on one hand, and the uniqueness of parallel line, one of the characteristics of Euclidean geometry, on the other. This discussion can be applied to introducing and developing exploratory learning on area in that it revisits the ordinary thinking on area.

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A Study on the Capital Area's Urban Type Analysis and Real Estate Characteristics

  • Jeong, Moonoh;Lee, Sangyoub
    • Journal of Construction Engineering and Project Management
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    • v.2 no.4
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    • pp.32-41
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    • 2012
  • In recent times, multi-centralization and decentralization as well as large Capital area and suburbanization in the spatial structure of capital area. With rapid growth, urbanization and industrialization are unsystematic, and growth inequality between regions caused negative effects such as discordant centralization and decentralization, fluctuating land value, and gap between living conditions. Accordingly, this study analyzed urban spatial indexes by the self-governed body in the capital area such as Seoul, Incheon, and Gyeonggi province for the analysis of the regional inequality phenomenon. We examined the characteristics of temporal and spatial changes in urban spatial structure in the capital area by utilizing the distribution pattern and density of city indexes such as population, employment, etc, and then drew the commonality of those factors through factor analysis. We evaluated the drawn results through the city standard index by each city, conducted factor score analysis, and identified the interaction between each factor and Housing Purchase Price Composite Indices index, housing rent price index(Housing Jeonse Price Composite Indices), land price fluctuation rate, diffusion ratio of house, and financial independence.

Comparison of the fit of the coping pattern constructed by manual and CAD/CAM, depending on the margin of the abutment tooth (지대치 변연 형태에 따른 수작업과 CAD/CAM으로 제작한 coping 패턴의 적합도 비교)

  • Han, Min-soo;Kwon, Eun-Ja;Chio, Esther;Kim, Si-chul
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.10
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    • pp.6611-6617
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    • 2015
  • The purpose of this study is to compare the marginal and internal fit of metal and zirconia coping which is fabricated by manual and CAD/CAM(Computer Aided Design/Computer Aided Manufacturing). The model is prepared with Urethane material and two abutment teeth are fabricated with a knife and chamfer margin. Silicon replica technique is used to measure the marginal fit of manually fabricated and the CAD/CAM coping. Internal fitting level is measured with a microscope and the image is captured with a CCD camera. The distance between abutment teeth and coping is measured with a callibrated image analyzer software; marginal opening (MO), marginal gap (MG), internal gap (IG) at maximum curvature area, axial gap (AG), and occlusal gap (OG). Two-way ANOVA test is applied to compare fabrication technique and to analysis of abutment pattern. In addition, one-way ANOVA and Scheffe's test is used to analyze each parameter of the test. The result shows that the fit is < $120{\mu}m$ except OG of CAD/CAM and MO of knife margin. The CAD/CAM fabricated coping showed higher fit level at chamfer margin. However, knife margin showed better fitness compared to chamfer margin at MG. AG showed the minimum dimension with a constant result (< $38{\mu}m$).

Polar-coordinates Linear Interpolation for Contour Reconstruction at Summit Area (정상 근방의 등고선 재구성을 위한 극좌표계 선형 보간)

  • 박천주;전병민
    • Proceedings of the Korea Contents Association Conference
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    • 2003.11a
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    • pp.407-413
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    • 2003
  • To connect the gap on the contours at the summit area, we propose the linear interpolation in the polar coordinates. The results of appling both existing algorithms and proposed method to some graphic images, the proposed interpolation method was superior. Also by generating a new curve having similar appearance of neighboring contours, the connected contours were reconstructed naturally.

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Analysis on the Labor Market Performance of Local University Graduates and Regional Education Gap (지방대학 졸업자의 노동시장 성과와 지역별 교육격차)

  • Kim, Hisam
    • KDI Journal of Economic Policy
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    • v.32 no.2
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    • pp.55-92
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    • 2010
  • In terms of labor market accomplishments, such as income, size of the company, and the matching quality between one's job and college major (specialization), a very large discrepancy is observed between the graduates from colleges located in Seoul and those outside Seoul. But, when the department average score of the Scholastic Aptitude Test (SAT) at the time of college entrance is controlled for, the discrepancy is found to be reduced to a considerable degree. In the case of wage gap, at least two third can be explained by the SAT score gap. The remaining wage gap seems to reflect the characteristics of workplace. In other words, graduates with high SAT scores enter colleges located in Seoul and thus tend to find better jobs leading to earning differences. This result that confirms the importance of aptitude test scores suggests that in the labor market, one of the major reasons behind a lower accomplishment of the graduate from local colleges is due to a lower competitiveness of local colleges in attracting the brightest students. But, this should not be viewed as only an internal problem of local colleges. This is because the growth of local economies tends to haul the advancement of local colleges in that area rather than being the other way around. The agglomeration effect in Seoul where headquarters of large corporations and financial institutions gather is the factor that has elevated the status of colleges located in Seoul since this provides highly preferred job choices of graduates. When the competitiveness of college is significantly influenced by exogenous factors, such as the vicinity to Seoul, the effort being made by colleges alone would not be enough to improve the situation. However, the central government, too, is not in the position to carry out countermeasure policies for such problems. The regional development strategy boosted through supportive policies for local colleges, such as financial support, is not based on the persuasive and empirical grounds. It is true that college education is universal and that the government''s intervention in assisting local colleges to secure basic conditions, such as tenure faculty and adequate facilities is necessary. However, the way of intervention should not be a support-only type. In order to improve the efficiency and effect of financial support, restructuring programs, including the merger and integration of insolvent colleges, should be underway prior to providing support. In addition, when the policy is focused on education recipients-local college students, and not on education providers-local colleges, the importance of regional gap in compulsory education (elementary and junior high schools) turns out to be much important as the gap between metropolitan area colleges and local colleges. Considering the educational gap before college entrance shown from the discrepancies of aptitude test scores among different regions, the imbalance between regions in terms of human resources is apparently derived from compulsory education, and not from college education. Therefore, there is a need to double the policy efforts to reduce the educational gap among different regions. In addition, given the current situation where it is difficult to find appropriate ex post facto policy measures to solve the problem of income gap between the graduates from metropolitan colleges and local colleges, it can be said that improving the environment for compulsory education in local areas is a growing necessity for bridging the educational gap among different regions.

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