• Proceedings of the KIEE Conference
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• 2003.07d
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• pp.2809-2811
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• 2003

Biochip-based diagnostic technology is an effective, time- and money-saving way of identifying Rifampin and Isoniazid resistant tuberculosis strains. In this paper, we suggest the optical system which is designed with the simple structure and has an appropriate specification for biochip analyzer including a CCD camera system. It consists of two parts with the same structure but opposite direction. each part is made by one lens, achromatic doublet and meniscus. We changed the working distance of the optical system and observed its characteristics.

• Proceedings of the KIEE Conference
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• 2003.11c
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• pp.488-491
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• 2003

Biochip-based diagnostic technology is an effective, time- and money- saving way. But, biochip analyzer including CCD imaging system has a complete optical system. It is one of reasons that the cost of biochip analyzer is expensive with CCD imaging system. In this paper, We suggested the simple and effective optical system for biochip analyzer with CCD imaging system. It consists of two parts with the same structure but opposite direction. Each part consists of achromatic doublet and meniscus. Suggested optical system has less lenses than existing system and more efficiently.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.18 no.3
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• pp.345-355
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• 2008

This paper presents a design of a tuned liquid mass damper(TLMD) for controlling bi-directional response of high-rise building structure subjected to windload. The proposed damper behaves as a tuned mass damper(TMD) of which mass is regarded as the mass of a tuned liquid column damper(TLCD) and the case wall of the TLCD itself in one direction and the TLCD in the other direction. Because the proposed device has coupled design parameter along two orthogonal directions, it is very important to select designing components by optimal fine tuning. In the designing TLMD, for easy maintenance, the rubber-bearing with small springs was applied in TMD direction. In this study, the Songdo New City Tower 1A in Korea, which has been designed and constructed two TLCDs in order to control bi-directional response, was chosen as the model building structure. The results of rotation test proved the effectiveness of bi-directional behavior of TLMD.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.32 no.5B
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• pp.287-293
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• 2012

This study suggests the topographic index-based methodology which can be used to represent the saturation of soil and thereby change of variable runoff area at basin scale. ${\infty}$-flow direction method is applied to estimate topographic index because of its freedom from the restriction of 8-flow direction method as well as possibility of the minimum flow dispersion. From the comparison of topographic index distribution with the existing result the methodology is shown to be a workable one. It is judged that the representation of variable runoff area may be a systematic tool to investigate the dynamic and non-linear property of rainfall-runoff process because it can provide the explicit way to spatial distribution of basin saturation.

• Journal of Wetlands Research
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• v.13 no.3
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• pp.687-696
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• 2011

This study induced ecological and cultural regeneration factors which can be introduced in island regions. And then, survey on recognition on importance was carried out with experts group. First of all, based on status and development trend of islands, farming and fishing village, ecological and marine city, eco-cultural regeneration factors fit to islands area were induced. Ecological regeneration factors were classified to land use, transportation system, buildings, and resources cycle. While cultural regeneration factors were classified to preservation, making tourism resources, and base facilities. This study compared recognition on importance by field such as occupation and major field. One-way ANOVA was used. As a result, this study compared recognition on importance about eco-cultural regeneration factors in island regions and suggested future direction.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.28 no.2
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• pp.53-62
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• 2020

This study is to evaluate the accuracy of the meteorological information provided for the aircraft operating at low altitude. At first, it is necessary to identify crucial elements of weather information closely related to flight safety during low altitude flights. The study conducted a survey of pilots of low altitude aircraft, divided into pre-flight and in-flight phases, and reached an opinion that wind direction, wind speed, cloud coverage and ceiling and visibility are important items. Related to these items, we compared and calculated the accuracy of TAFs and METARs from Taean Airfield, Seosan Airport and Gunsan Airport because of their high number of domestic low-altitude flights. Accuracy analysis evaluated the accuracy of two numerical variables, Mean Absolute Error(MAE) and Root Mean Square Error(RMSE), and the cloud coverage which is categorical variable was calculated and compared by accuracy. For numeric variables, one-way ANOVA, which is a parameter-test, was approached to identify differences between actual forecast values and observations based on absolute errors for each item derived from the results of MAE and RMSE accuracy analyses. To determine the satisfaction of both normality assumptions and equivalence variability assumptions, the Shapiro-Wilk test was performed to verify that they do not have a normality distribution for numerical variables, and for the non-parametric test, Kruscal-Wallis test was conducted to determine whether or not they are satisfied.

• Journal of Korean Academy of Nursing Administration
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• v.3 no.1
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• pp.5-15
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• 1997

Today's rapidly changing healthcare environment and increasingly professional nursing practice indicate that identifying leadership characteristic of nursing leaders and executives is a vital importance in today' s time and also mandate innovative leadership for nursing service. Therefore, the purpose of this study is to examined the transformational, transactional leadership styles of the Nurse Administrators. The sample consisted of sixteen mid-level nurse administrators, fifty head nurses of 5 General Hospital. Data for this study was collected from Sep. 20 to 29 by Bass' MLQ Questionnaire. The data was analyzed by frequency, percentage, one-way ANOVA. Major findings are as follows : Appropriate one-way ANOVA tests revealed that the differences for transformational and transactional leadership styles of nurse executives, mid-level nurse administrators as perceived by their immediate subordinates were statistically significant(P<.05). The scores of transformational and contingent reward behaviors were declined of the mid-level nurse administrators. The transactional scores of nurse administrators were lower than transformational ones, which is a desirable findings. The result of this study, the mid-level nurses administrators were perceived as the highest transformational leader by their subordinates. The nurse executives received the lower transformational leadership scores than mid-leval administrators. These results were opposit to the previous studies. Leader can aspire to these qualities of transformational leadership, building on the more traditional transactional dimensions. We can think that transformational leadership suggests a direction for developing a creative and rewarding approach to the leadership of professionalnursing practice environments. More research on transformational qualities in nursing service and controlled designs would be desirable for nursing service administration.

• Journal of Digital Convergence
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• v.18 no.2
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• pp.269-276
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• 2020

In this study, we will analyze the classroom space of elementary schools that have implemented the Seoul Metropolitan Government's 'Dream Classroom' project and identify satisfaction and needs in terms of users. Primary school was selected and the composition and color of space was investigated by the present ministerial inspection. The survey was conducted on homeroom teachers and analyzed as SPSS/WIN Statistical Programme 22.0. The satisfaction level of space elements was verified by the technical statistical analysis, the general classroom and the 'classroom with dreams' difference in response t-test, the need for planning elements (criticality), and the difference in satisfaction with one way ANOVA. The space had the most separate, primary-colored classrooms. They preferred emotional factors and bright and light atmosphere for the lower grades, and the soft and soft atmosphere for the middle and high school students. The school preferred communication space with the community, proper play and relaxation space for the complex type of classroom. This will help set the direction for elementary school classroom space planning during the Fourth Industrial Revolution.

• The Journal of the Korea Contents Association
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• v.21 no.9
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• pp.164-175
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• 2021

The purpose of this study is to develop the 'Kkondae Scale' and verify its validity. For this purpose, three constructive concepts (attribution error, cognitive rigidity, and one-way communication) were derived through expert interviews, prior research and literature analysis, and 15 preliminary questions were selected. In addition, a preliminary scale was developed by modifying or adding items to conform to each constructive concept through expert content validity evaluation. Next, as a result of the exploratory factor analysis of about 250 adults, a three-factor structure model was derived. As a result of the confirmatory factor analysis on the preliminary scale for about 401 adults, it was confirmed that the fit of the three-factor structure was good. As a result of convergence and discriminatory validity analysis, it was confirmed that the developed scale was a valid tool to measure Kkondae by showing appropriate correlations with listening attitude, empathy, acceptance of others, and intellectual humility. Finally, based on the results of this study, the significance, limitations, and future research direction of the study were discussed.

• The Korean Journal of Archival Studies
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• no.40
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• pp.3-27
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• 2014

The purpose of the enactment of the 'Law on the National Archives of Korea' should be to secure the accountability and to shape up the improved governance system in the field of records and archival management, which will contribute to the strengthening of democracy in records management and eventually to the widening of the democratic progress in Korea. On the basis of the above recognition and by way of notion called 'horizontal accountability', this paper suggests the way to secure the National Archives of Korea's independency. And the way to reorganize the National Records Management Committee based on the pluralism and the 'multi-layered' governance system is also investigated. One of the main directions in the suggested law should be for the autonomy and transparency in the operation of the National Archives of Korea. This paper tries drawbacks and limitations of the 'Bill on the National Archives of Korea' introduced to the National Assembly last year, and suggests the alternatives as wel lto get further forward with related discussion.