• Proceedings of KOSOMES biannual meeting
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• 2006.11a
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• pp.169-174
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• 2006

A distinctive difference of hydrocarbon in crude oil and petroleum products exists. Depending on the origin where it comes from, crude oil shows its own unique pattern which is different from petroleum products containing characteristics according to their operating process and production period. A process of mixing behavior in a tank containing residual amounts of oil draws its own pattern when analysis is conducted. The analytical process described above is named oil fingerprint method. This study investigates an effectiveness of the method for comparing data sets produced by conventional gas chromatography with mass spectrometer (GC/MS) and comprehensive two-dimensional gas chromatography (GC X GC) which is known as powerful new technology for chemical analysis.

• The Journal of Society for e-Business Studies
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• v.18 no.4
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• pp.327-338
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• 2013

Effective and efficient selection of IT projects is crucial for company's competitiveness. The selection of IT projects usually involves consideration of budget constraints but existing IT project selection models often neglect budget constraints. This paper presents an IT project selection model which considers budget constraints. AHP(Analytic Hierarchy Process) and Knapsack problem model have been combined to develop the proposed model, AHP-K model, where AHP is used to estimate weights of selection criteria and, then, a knapsack problem model is utilized to optimize selection of IT project while meeting the budget constraints. In this paper, a case study is provided to validate the effectiveness of the proposed AHP-K model. It has been shown that the proposed AHP-K model is better than the AHP model in terms of total utility of projects and investment efficiency.

• Korean Journal of Health Education and Promotion
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• v.31 no.4
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• pp.63-72
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• 2014

Objectives: The current study reviews the implementation and evaluation of the Chronic Disease Self-Management Program (CDSMP) in the United States (U.S.) to illustrate the program's potential contribution to improving health among Korean adults with chronic conditions while saving healthcare costs. Methods: This study examines existing literature on the history, theoretical background, essential elements, and delivery outcomes of CDSMP with special focus on the successes and challenges to be faced in the implementation of CDSMP to Koreans with chronic conditions. Results: CDSMP is designed to empower people with chronic conditions to develop skills necessary for medical, social role, and emotional management of chronic conditions. Recent studies show the utility of CDSMP in achieving the Triple Aim health reform goals (i.e., better care, better health, better value). Lessons learned from the U.S. experience emphasize the importance of establishing evidence-based studies, collaborating with community partners, and diversifying funding sources to make CDSMP more sustainable. Conclusion: The current study demonstrates the replicability of CDSMP and potential for expansion in Korea. More concerted efforts among academia, government, and communities are needed to deliver CDSMP to Korean adults and identify its effectiveness within the Korean context in terms of meeting the Triple Aim goals of better care, better health, and better value.

• Proceedings of KOSOMES biannual meeting
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• 2007.11a
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• pp.145-148
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• 2007

In this paper a development if data acquisition system for machinery monitoring and its condition analysis is discussed A suitable data acquisition system should be adopted to get desirable monitoring results for ship's machinery. 1he compactness and moderate cost are also considered to compose the data acquisition system 1he basic components if data acquisition system for monitoring are introduced and automatic data saving function with variable time interval and remote monitoring system are also proposed An experiment to get vibration data for rotating machinery is executed to verify the effectiveness if the data acquisition system.

• Anxiety and mood
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• v.5 no.1
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• pp.36-41
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• 2009

Objectives : The purpose of this pilot study was to investigate the potential clinical benefits a single group session of cognitive behavioral therapy in the treatment of patients with panic disorder. Methods : The study participants were 18 patients (14 males, 4 females; mean age=38.9 years), all of whom were assessed as meeting the DSM-IV-TR criteria for panic disorder. All participants attended one two-hour session of structured group cognitive behavioral therapy (CBT). Clinical symptoms was assessed before and eight weeks after the single therapy session using the Panic Disorder Severity Scale (PDSS). Results : Eight weeks after a single session of group CBT significant improvements were found in panic attack frequency, distress during panic attacks, severity of anticipatory anxiety, agoraphobic fear/avoidance, panic-related sensation fear/avoidance, impairment in work functioning, impairment in social functioning. Conclusions : One session of group CBT appears to be an effective treatment of panic disorder by reducing the severity of all symptoms assessed on the PDSS. An attempt should be made to replicate the findings of this pilot study in a larger and controlled, comparative clinical trial.

• Journal of Digital Convergence
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• v.15 no.5
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• pp.71-77
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• 2017

This study examines the effects of in-company English programs on Korean employees' English learning. During the twelve weeks, 68 employees in Korea engaged in an English learning program in the workplace. Before and after the program, pre- and post-tests were conducted to see if their English proficiency improved. Pre- and post-surveys and interviews were also administered to understand how they perceived the program. Results show that the employees improved their English oral proficiency and their attitudes toward English learning positively changed, as a result of participating in the program. Also, the program appeared to be successful, meeting their needs. Given that little research has investigated the effects of in-company English learning, this study provides insights on the effectiveness of English programs in the workplace in Korea.

• Proceedings of KOSOMES biannual meeting
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• 2005.05a
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• pp.135-140
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• 2005

Currently, ECDIS and GPS plotters are much used as equipment providing operators with route information, but they do not have any function of automatic route creation and route explanation, so available for only experienced operators. Especially, the present situation is tint no study is made of the automatic route creation and route explanation using ENC for ECDIS, substitution system of paper chart. ENC is the electronic navigation chart that is produced using S-52, S-57 standard format required by IHQ. In this paper, an Vessel Operator Support System(VOSS) is proposed to generate an optimal route where ENC and GPS data is fusioned induding the wind direction and speed of an anemometer and tide data. The proposed system was testified by a simulation, and its effectiveness was verified.

• Korean Journal of Comparative Education
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• v.22 no.4
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• pp.25-49
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• 2012

Coping with the problems of school violence, weapon and drug abuses, 'zero tolerance policies' have been adopted in the United States since the 1980's. Authorities have been securing the safety and learning-friendly environment of the school, imposing predetermined penalties on any case of school violence or disruption. It is reported that the school violence rate drops accordingly. However, the policies are criticized for their rather escalating effect due to severe punishments on minor offenses, evidencing no effectiveness worthwhile. As alternatives, 'graduated systems of discipline' meeting minor misbehaviors with less severe consequences or 'early response model' are suggested, without abandoning those main rules of zero tolerance policies. Recently Korean government tries to take charge of school violence, issuing some nation-wide measures such as 'the Comprehensive Measures to Stop School Violence'. This article analyzed major principles and changes of the zero tolerance polices of US case, to induce some policy suggestions for the validity of Korean government's measures implemented under the understanding that "little bullying" is also a "crime" to disclose all school violence.

• The Journal of Society for e-Business Studies
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• v.26 no.1
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• pp.67-78
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• 2021

The number of domestic e-commerce transactions has been breaking its own record by an annual average growth rate of over 20% based on volume for the past 5 years. Due to the rapid increase in e-commerce market, retail companies that have difficulty meeting consumers in person are in fierce competition to take the lead in the last mile service, which is the only point of contact with customers. Especially in the delivery area, where competition is most intense, the role of the fulfillment center is very important for service differentiation. It must be capable of fast product preparation ordered by consumers in accordance with the delivery service level. This study focuses on the order picking system for rapid order processing in the fulfillment center as an alternative for companies to gain competitive advantage in the e-commerce market. A mixed integer programming model was developed and implemented to optimize the stock replenishment in order picking facilities. The effectiveness was scientifically and objectively verified by simulation using the actual operation process and data.

• Journal of Practical Engineering Education
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• v.14 no.1
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• pp.91-97
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• 2022

Recently, as per a representative education method to develop core capabilities (such as critical thinking, communication, collaboration, and creativity) problem based learning (PBL) has been widely adopted in universities. Two important features of PBL are 'collaboration between team members' and 'participation based self-directed learning'. These two features should be satisfied in online education, although it is difficult due to the limitation on space and time in the COVID-19 pandemic. This paper presents a new design of PBL class in Metaverse, based on improving the online PBL class operated in the previous semesters in the H university. In the proposed PBL class, students are able to display materials (e.g., image, pdf, video files) in 3D virtual space, that are related to problem solving. The 3D virtual space is called gallery in this paper. The concept of gallery allows for active participation of students. In addition, the gallery can be used as a tool for collaborative meeting or for final presentation. If possible, the new design of PBL class will be applied and its effectiveness will be analyzed.