• Transactions of the Korean Society of Mechanical Engineers B
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• v.22 no.7
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• pp.1030-1040
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• 1998

One of the main unresolved issues in large-eddy simulation(LES) of wall-bounded turbulent flows is the requirement of high spatial resolution in the near-wall region, especially in the spanwise direction. Such high resolution required in the near-wall region is generally used throughout the computational domain, making simulations of high Reynolds number, complex-geometry flows prohibitive. A grid-embedding strategy using a nonconforming spectral domain-decomposition method is proposed to address this limitation. This method provides an efficient way of clustering grid points in the near-wall region with spectral accuracy. LES of transitional and turbulent channel flow has been performed to evaluate the proposed grid-embedding technique. The computational domain is divided into three subdomains to resolve the near-wall regions in the spanwise direction. Spectral patching collocation methods are used for the grid-embedding and appropriate conditions are suggested for the interface matching. Results of LES using the grid-embedding strategy are promising compared to LES of global spectral method and direct numerical simulation. Overall, the results show that the spectral domain-decomposition grid-embedding technique provides an efficient method for resolving the near-wall region in LES of complex flows of engineering interest, allowing significant savings in the computational CPU and memory.

• Journal of Engineering Education Research
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• v.19 no.2
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• pp.14-25
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• 2016

This study deals with how liberal education in engineering could be positioned properly in an era of convergence. Disciplines of Engineering has long been focusing on engineer as a 'technical profession' and the liberal education as an accessory to major study has been left behind. Under this understanding, the topic of 'convergence' in the 21th century engineering is hardly to find its way to the establishment into engineering education. This study suggests a direction for the reform of liberal education in engineering, which is expected to overcome the distinction between professional and non-professional aligned with major education and liberal one. For the reform, introducing and developing contents and methodologies considering convergence would open the door of engineering education to interdisciplinary study and to 'open-profession'. Next, the problem solving model in education will be very effective for learners to define the problem, to utilize various knowledges and to lead to meaningful solution. Lastly, we emphasize the changing context of liberal education and it is necessary to integrate 'technology literacy' into liberal education in relation to major study.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2005.05a
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• pp.35-39
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• 2005

There can be two definitions of modern ideal medical surroundings. One is medical services satisfied patients' with their desire and the other is places suited to remedy realized by rational operation. Particularly, in case of dental service, there is a need for an effective regard of moving lines and there are many rooms for a dental service belonged to a curer and not a curer. So a design has been developed by many concerns. How do we proffer more familiar and comfortable places to both a curer and not a curer. Nowadays, the design is making progress to the unprecedented and up-to-date direction. I would suggest a general plan used by a nature of an original art for this design. The design used by a nature between human beings and things is able to induce comforts and intimacies. So to speak, I would like to remove artificial design and keep up organic lines, shapes and forms of a nature like it is. This study grasps the organizational limitation of this design and the visual characteristic of organic forms used by harmonious image of a nature and a new way is applied to limited medical places, a dental service, based on the study. Also, I'm go to examine the meaning and worth of a new design and suggest the direction of it.

• Korean Journal of Remote Sensing
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• v.19 no.5
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• pp.393-402
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• 2003

In times of the civil uses of commercialized high-resolution satellite imagery, applications of remote sensing have been widely extended to the new fields or the problem solving beyond traditional application domains. Transportation application of this sensor data, related to the automatic or semiautomatic road extraction, is regarded as one of the important issues in uses of remote sensing imagery. Related to these trends, this study focuses on automatic road extraction using Gradient Direction Profile Algorithm (GDPA) scheme, with IKONOS panchromatic imagery having 1 meter resolution. For this, the GDPA scheme and its main modules were reviewed with processing steps and implemented as a prototype software. Using the extracted bi-level image and ground truth coming from actual GIS layer, overall accuracy evaluation and ranking error-assessment were performed. As the processed results, road information can be automatically extracted; by the way, it is pointed out that some user-defined variables should be carefully determined in using high-resolution satellite imagery in the dense or low contrast areas. While, the GDPA method needs additional processing, because direct results using this method do not produce high overall accuracy or ranking value. The main advantage of the GDPA scheme on road features extraction can be noted as its performance and further applicability. This experiment study can be extended into practical application fields related to remote sensing.

• Journal of the Korea Society of Computer and Information
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• v.29 no.3
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• pp.155-163
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• 2024

This study was conducted to determine the relationship between nursing students' empathy, communication skills, and major immersion, and to identify factors that affect major immersion. The subjects of the study were 247 nursing students from one university in the G province, and data collection was conducted from November 20 to December 1, 2023. Data analysis was performed using SPSS 22.0 using descriptive statistics, t-test, one-way ANOVA, Scheffe test, Pearson correlation coefficient, and multiple regression analysis. The subject's empathy ability was 3.49 points, communication ability was 3.64 points, and major immersion was 3.61 points. Major immersion has a positive correlation with empathy and communication ability, and the factors affecting major immersion are major satisfaction and communication ability, with an explanatory power of 42.9%. To improve nursing students' immersion in their major, it is necessary to set the direction of learning activities and develop and apply various extracurricular programs.

• The Research Journal of the Costume Culture
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• v.26 no.2
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• pp.172-187
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• 2018

For the past decade, the convenience of sharing information online has improved drastically with the development of smart devices and social media. Such changes have contributed to regarding online word-of-mouth (WOM) as one of the most important consumer information sources. Therefore, the purpose of this study is to examine online WOM effects (acceptance/redelivery intention) with the two-way interaction effects of fashion involvement and the market maven. The empirical study consisted of an offline survey that collected data from 341 respondents and analyzed the data by factor analysis, independent t-test, and two-way ANOVA with SPSS 20.0, producing the following results. First, the market maven effect was found to differ significantly based on the level of fashion involvement, and is also higher when fashion involvement is high. Second, fashion involvement primarily affected online WOM acceptance, while the market maven significantly affected redelivery intention. Moreover, fashion involvement and market maven had relevant two-way interaction with both of the online WOM effects. Third, market maven had measurable effects on WOM redelivery types (objective/subjective) and directions (positive/negative/ neutral), whereas fashion involvement did not have any primary effects on them. However, fashion involvement and market maven had two-way interaction effects on the positive and negative direction of WOM redelivery. Based on these findings, the study suggests the importance of investigating and understanding the complicated online WOM behaviors of consumers, specifically from both managerial and theoretical perspectives.

• Journal of Satellite, Information and Communications
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• v.12 no.4
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• pp.157-161
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• 2017

Effective management of ULD (Unit Load Device) in Air Cargo Transportation is one of the Airline's main concerns. At present, the way of management of ULD which has the ID tag based on RFID is carried by cargo control staff with PDA. However, the activity of ULD management is limitted due to complexity of cargo terminal facilities. In this study, we offer the effective way of management of ULD by the DRONE equipped by LED-ID & RFID READER at the higher altitude in Air Cargo Terminal to recover the difficulty of identification due to complexity of terminal facilities. Further to the above, we suggest the operational effectiveness, limitation, and the direction of future research.

• International Journal of Costume and Fashion
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• v.7 no.2
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• pp.49-63
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• 2007

In this study, we inquire into the general concepts of eroticism as it appears in literature and the arts, and use this as a foundation to meditate on the eroticism of attire throughout history. We also ascertained external forms based on the range of "The way we look" by Delong. In this way we inclusively studied both the content and form of modes of eroticism in the perspective of Brodsky's "linked solution." The original concept of eroticism is a technique by which one attains physical passion, referring to a nature which is deeply rooted in the cultural traditions, myths, habits. religion and arts of mankind, inducing expressions of sensual love. We integrated this eroticism in 4 categories: sensuality, which induces beauty; naturality, denoting idealization or rational beauty; primitivity, characterized by grotesque expressions or direct and natural sexual depictions; and symbolism by which sex is symbolically or mechanically projected. The concept of eroticism contains both positive and negative aspects, but rather than dealing with sex in a mechanical or perverted manner to express eroticism, it is more appropriate to guide the direction of modes of eroticism by stimulating the "desire to show" and the "desire to see" with the dialectic of obstruction and exposure as a figurative expression of true passion, and narcistic phenomena in which beauty is expressed through exaggeration or magnification and adhesion.

• Research in Community and Public Health Nursing
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• v.7 no.1
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• pp.18-28
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• 1996

This study was carried out to explore the direction of job involvement of public health nurses and explore the way for improving services of public health center in Korea. The subjects were consisted of 164 nurses who were working at public health centers in Chonbuk. The data were collected by self-reporting questionnaire from Jan. 15 to Jan. 27, 1996. The instrument used in this study was Likert-type scale which Job Involvement Scale developed by Kanungo. The questionnaires of organizational and job characteristic were made through reviewing literatures. The data were analyzed by frequency, percentage, t-test, one-way ANOVA, Scheffe test, and Pearson's correlation coefficient with SPSSPC+ program. Major findings were as follows : 1. Mean scores for job involvement were 3.0879 on a 5 point scale. 2. In the personal variables, professional experience(t=-2.18, p=.031), position(t=2.34, p=.021), and age(F=-1.94, p=.038) were statistically significant in job involvement. 3. The variables to job characteristic were statistically significant in job involvement: job challenge (r=.4785, p=.000), role ambiguity (r=-.3141, p=.000), task significance (r=.2714, p=.000), and role conflict(r=-.2166, p=.003). 4. The variables to organizational characteristic were statistically significant in job involvement : formalization(r=.3184, p=.000) and human centered organizational characteristic (r=.2450, p=.001).

• Journal of the Korean Society of Safety
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• v.27 no.3
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• pp.104-110
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• 2012

It is a common practice to design basement walls acting as a one-way slab or plate with idealized boundary conditions, resulting in potentially inefficient design. The walls are often supported by buttress columns and side walls in the vertical direction, thereby acting as a two-way slab. In this study, structural behavior of single-story, three-span basement wall subjected to lateral soil pressure was investigated. Three dimensional finite element analyses were conducted to determine the force distribution on the wall. Based on the numerical studies, a regression analysis was carried out to determine the design values of moments in vertical and horizontal directions as well as shear forces on the wall and design charts are developed. The proposed design method with accompanying design charts would enable practicing engineers to estimate member forces on the wall for preliminary design purpose without resorting to finite element analysis. Numerical examples demonstrated the applicability of the proposed method.