• Journal of Digital Convergence
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• v.12 no.2
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• pp.503-511
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• 2014

Liberal education in colleges and universities embrace the concept of general education to enhance individual's morality, intelligence and identity. In consideration of physical education aim to develop cognitive, psychomotor and affective domains as a whole person education, liberal education and general physical education share the same values and objectives. Suppose physical education and liberal education shared same initial values, general physical education should take possession of the core means to achieve liberal education goals. To this end, it is necessary to inspect the actual statement of general physical education curriculum carefully, to find potential problems and prevent them in advance, and also explore future directions. In the current investigation, researchers found potential problems through identifying operation status of general physical education in 10 national universities. In addition, researcher provided future directions of general physical education in college and university including 'take possession of core means for liberal education', 'making diverse general physical education curriculum', 'move away from physical skill-centered education', 'general physical education as a whole body education' and 'increase opportunity of general physical education'.

• The Journal of the Korea Contents Association
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• v.10 no.2
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• pp.89-98
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• 2010

The enterprise system is becoming more complex and larger. With the changes of the times, the system is developing to object-oriented programming method(OOP). However, the same code inserts to the core class repetitiously in the OOP, that causes a decrease in productivity and a trouble of application of another requirement. To solve this weak point, we propose a weaving mechanism what applies to metadata and crosscutting concern. For a class optimization and an integration between different languages, we take the following way. This paper uses three ways, those are, metadata generation using reflection, transformation to Abstract Syntax Tree, and mapping through crosscutting information specified XML. Through the proposed theory, class optimization can be accomplished by solving a functional decentralization and a confusion of codes.

• Journal of KIISE:Databases
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• v.27 no.1
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• pp.22-32
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• 2000

The Digital Library is the integrated system of Information Retrieval System(IRS) and Database Management system(DBMS). In the Digital Library environment where dynamic query and update processes are required, however, the existing transaction management methods cause the following problems. First, since the traditional consistency criteria is too restrictive, it causes increment of query processing time and cannot guarantee the reflection of recency. Second, query result could be unreliable because the consistency criteria between source data and metadata is not defined. This paper models the access to metadata based on Dublin Core as query transactions and update transactions, and gives the efficient method to manage them. Particularly, this paper describes the consistency criteria of metadata which takes it Into consideration the consistency between the result of query transaction and status of source data in the Digital Library, that is different from the consistency criteria in traditional transaction management. It also presents analysis of the view point of query transaction to reflect recency and proposes metadata management to guarantee recency within metadata consistency.

• International Journal of Naval Architecture and Ocean Engineering
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• v.11 no.2
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• pp.736-749
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• 2019

This paper employs computational tools to investigate the diffraction effects in regular head waves on the added resistance and wake on the propeller plane. The objective ships are a 66,000 DWT bulk carrier and a 3,600 TEU container ship. Fixed and free to heave and pitch conditions at design speed have been taken into account. Two-phase unsteady Reynolds averaged Navier-Stokes equations have been solved using the finite volume method; and a realizable k-ε model has been applied for the turbulent closure. The free surface is obtained by solving a VOF equation. The computations are carried out at the same scale of the model tests. Grid and numerical wave damping zones are applied to remove unwanted wave reflection at the boundaries. The computational results are analyzed using the Fourier series. The added resistances in waves at the free condition are higher than those at the fixed condition, which are nearly constant for all wavelengths. The wake velocity in waves is higher than that in calm water, and is accelerated where the wave crest locates on the propeller plane. When the vertical motion at the stern goes upward, the wake velocity also accelerated.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.30 no.8
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• pp.525-529
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• 2017

Molybdenum oxide ($MoO_3$) offers pivotal advantages for high optical transparency and low light reflection. Considering device fabrication, n-type $MoO_3$ semiconductor can spontaneously establish a junction with p-type Si. Since the energy bandgap of Si is 1.12 eV, a maximum photon wavelength of around 1,100 nm is required to initiate effective photoelectric reaction. However, the utilization of infrared photons is very limited for Si photonics. Hence, to enhance the Si photoelectric devices, we applied the wide energy bandgap $MoO_3$ (3.7 eV) top-layer onto Si. Using a large-scale production method, a wafer-scale $MoO_3$ device was fabricated with a highly crystalline structure. The $MoO_3/p-Si$ heterojunction device provides distinct photoresponses for long wavelength photons at 900 nm and 1,100 nm with extremely fast response times: rise time of 65.69 ms and fall time of 71.82 ms. We demonstrate the high-performing $MoO_3/p-Si$ infrared photodetector and provide a design scheme for the extension of Si for the utilization of long-wavelength light.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.30 no.4
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• pp.169-183
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• 2022

This study aimed to analyze the class effect of subjects to which Problem-Based Learning is applied to college students majoring in aviation service at university in Chungcheong. And we derive implications for continuously operating Problem-Based Learning classes. For the study, <Service Manners and Practice>, <Theory of Air Reservation Operation & Practice>, and <Introduction to In-flight Food & Beverage> were selected among the courses opened in the first semester of 2022. This study analyzes changes in communication competence, interpersonal skills, self-directed learning skills, higher-order thinking skills, information technology application skills, and problem-solving skills reflecting the core competencies of the universities to which the study students belonged. First, we analyzed the changes in communication competence, interpersonal skills, self-directed learning skills, higher-order thinking skills, information technology application skills, and problem-solving skills before and after classes by reflecting on the core competencies of the universities to which the study students belonged. As a result, all item except for interpersonal skills were improved. In addition, a qualitative analysis was conducted on the degree of learning improvement based on the contents of the reflection journal written during learning precess. As a result of the analysis, it was confirmed that it is effective for learning abilities such as communication, interpersonal relationships, self-directed learning skills, utilization of information, and problem-solving.

• International Journal of Advanced Culture Technology
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• v.11 no.3
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• pp.277-296
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• 2023

The South Korean ethnic diaspora US lobby shows efficacy as an interest group in generating influence in American foreign and domestic public policy making. The persuasive portrayal of South Korea as a critical Cold War US ally reinforced US amenability to pro-South Korea lobbying. Also, the South Korean US diaspora is a comparatively recent immigrant group, thus its lingering resistance to assimilation facilitates its political mobilization to lobby the US government. One source of this influence includes the foundational legacy of proselytizing Western and particularly American religious social movement representatives in Korean religiosity and society. US protestant Christianity acquired a strong public association with emerging Korean nationalism in response to Japanese imperialism and occupation. Hostility towards Japanese colonialism followed by the threat from Soviet-sponsored, North Korean Communism meant Christianity did not readily become a cultural symbol of excessive external, US interference in South Korean society by South Korean public opinion. The post-Cold War shift in US foreign policy towards targeting so-called rogue state vestiges of the Cold War including North Korea enhanced further South Korea's influence in Washington. Due to essential differences in the perceived historical role of American influence, extrapolation of the South Korean development model is problematic. US hegemony in South Korea indicates that perceived alliance with national self-determination constitutes the core of soft power appeal. Civilizational appeal per se in the form of religious beliefs are not critically significant in promoting American polity influence in target polities in South Korea or, comparatively, in the Middle East. The United States is a perceived opponent of pan-Arab nationalism which has trended towards populist Islamic religious symbolism with the failure of secular nationalism. The pronounced component of evangelical Christianity in American core community nationalism which the Trump campaign exploited is a reflection of this orientation in the US.

• Journal of Ocean Engineering and Technology
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• v.27 no.3
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• pp.85-90
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• 2013

The growing need for energy (oil and gas) has led to offshore resource development. As a reflection of this trend, there have been many advances in the technologies used for the subsea production systems that make offshore resource development possible. As the technologies for subsea production systems continue to grow, a subsea X-mas tree, the core equipment in a subsea production system, is required to have more functions than before. Generally, these complex functions lead to a change in its configuration. Therefore, this paper investigates a change in a subsea X-mas tree system to enhance system understanding, and conducts a leakage path analysis of a subsea X-mas tree system. Utilizing the recent configuration of the subsea X-mas tree, an identification of the leakage path and a quantitative risk analysis for the leakage using an FTA (fault tree analysis) are conducted.

• Journal of Korean Academy of Nursing
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• v.35 no.6
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• pp.1025-1035
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• 2005

Purpose: The purpose of this study was to explore the experiences of recovery from disease in the patients doing a kind of Buddhist meditation, and to develop a grounded theory about meditation. Method: Data was collected by an in-depth interview using tape-recordings from sixteen participants doing meditation. The data was analyzed using the grounded theory method proposed by Strauss and Corbin(1998). Result: The core category was discovering the true self. The participants began to do meditation because of their disease. They experienced obstacles due to incomplete religious acceptance. However, their faith grew gradually based on religious experiences that were indescribable. Finally, they entirely trusted the inner healer, which is emphasized in meditation. The strategies that they used were self reflection and seeking help for accepting deep meditation. They were stabilized in physical, psychological and social daily living. The processes of discovering the true self were identified as entering religious discipline, embodying religious discipline, self-accomplishing religious faith, and recovering mind-body health. Conclusion: This study provided the understanding of mind-body integration. Empirical research may be needed to prove scientifically the effects of meditation.

• Journal of Korea Multimedia Society
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• v.23 no.11
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• pp.1372-1382
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• 2020

This paper proposes a core technology for a micro river monitoring terminal device suitable for flood monitoring in small rivers and valleys. Our proposed device is basically equipped with a 77GHz radar, gyro and accelerometer sensors. To measure the flow velocity and water level, we proposed a signal processing technique that extracts pure water energy components from the observed Doppler velocity and reflection intensity from the radar. And to determine the stability of the river structure equipped with our device, we constantly monitor the displacement of the measured values of the gyro and accelerometer sensors. Experimental result verified that our method detects pure water energy in various river environments and distinguishes between flow velocity and water level well. And we verified that vibration and position change of structures can be determined through a gyro sensor. In future research, we will work to build a secure digital twin river network by lowering the cost of supplying RF-WAV devices. Also we expect our device to contribute to securing a preventive golden time in rivers.