• 대한전자공학회논문지SD
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• 제47권1호
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• pp.46-51
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• 2010

우리가 제안한 새로운 하이브리드 버스 중재 방식은 기존의 Fixed priority 방식과 Round-Robin 방식을 혼재한 것으로 고정된 우선순위로 인한 버스 우선권 독점현상을 방지하고 각 마스터에 효율적으로 버스 우선권을 할당한다. 제안한 중재 방식과 기존의 방식들은 verilog와 하이닉스 0.18um 공정 라이브러리를 이용하여 합성하고, 게이트 카운트와 면적 용적을 비교함으로써 검증하였다. 성능 분석 결과, 우리가 제안한 중재방식이 기존의 방식들보다 성능이 우수하고, 버스 점유율의 효율적인 관리가 가능함을 확인할 수 있었다.

• 산경연구논집
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• 제11권3호
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• pp.29-38
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• 2020

Purpose: Geographical relocation has been conducted to alleviate overcrowding and to support balanced regional development in many countries. Previous studies have seldom examined the effectiveness of relocation on job and life dissatisfaction, particularly in the public sector. The purpose of this study is to investigate the determinants of relocation on job and life dissatisfaction. Proposed research questions include the following: i) do working conditions in the new workplace and interactivity affect job dissatisfaction? ii) do social infrastructure and social activity in the new location affect life dissatisfaction? and iii) is there a relationship between job and life dissatisfaction? Research Design, data, and methodology: The study collected data via an online survey and applied statistical analyses such as factor analysis, regression, and ANOVA. Results: The results of this study found that proposed determinants excluding mobility inefficiency and decision-making affect job and life dissatisfaction. The results also showed that there are relationships between job and life dissatisfaction. Conclusions: The results of this study provide both managerial and policy implications of relocation for the public sector. The results of this study implied that better policy should be designed to increase job and life satisfaction that also accounts for the realities of relocation.

• 보건행정학회지
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• 제15권4호
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• pp.1-25
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• 2005

Legislation on pharmaceutical reimbursement decision using economic evaluation results was made in Korea in fm, but has yet to be fully implemented. We evaluated the quality of Korean economic evaluation studies of pharmaceuticals to understand gaps between legislation and implementation. From this evaluation, we propose policy options that might strengthen the research Infrastructure In order to support such studies. We reviewed 23 published studies for drugs conducted between 1996 and 2004. Evaluation criteria included methodological characteristics, healthcare system characteristics, population characteristics, and applicability of results. Large variation in study quality was observed, particularly with study design, outcome data, treatment patterns and interpretation. Korean clinical data used was mostly from observational studies of 1-2 hospitals. Foreign data was extracted from clinical trials that did not Include Asian population and their selection criterion was not clarified. With respect to treatment patterns, medical records and hospital bills were used without adjustment regarding area, hospital type, and others. And next frequent situation relied on expert opinion from academic physicians in specialty practice. preference measures, when used, were not elicited from the Korean population. $78.3\%$ of studies did not clarify the funding source. If the Korean economic evaluation policy is to provide meaningful data for decision makers, the quality of cost-effectiveness studies will need to improve dramatically. This may involve access to or creation of better data, more diverse funding, unproved training of researchers and evaluators, and partnerships with technology manufacturers.

• 한국통신학회논문지
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• 제30권8B호
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• pp.525-534
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• 2005

본 논문에서는 정책 기반의 네트워크 관리 구조를 확장하여, 보안 네트워크의 구성의 자동화를 지원할 수 있는 보안 네트워크 관리 구조와 방법을 제안한다. 제안하는 구조 및 방법은 보안 관리 서버가 보안 시스템의 역할과 능력 그리고 보안 정책의 역할과 시간 정보를 기반으로 하여 보안 시스템이 필요로 하는 최적의 보안 정책을 자동 결정하고 보안 정책 룰을 가장 효과적이고 효율적으로 실행할 수 있는 보안 시스템을 자동 결정할 수 있게 한다 본 논문에서는 기존의 네트워크 시스템과 보안 시스템을 통합 제어할 수 있는 SNMP 프로토콜기반의 보안 네트워크 토폴러지 맵 자동 생성기도 제안한다. 본 논문에서 제안된 구조와 방법의 우수성을 보여주기 위하여 공격에 대한 자동 대응 기능을 시뮬레이션하고 그 성능을 평가한다.

• Journal of Electrical Engineering and Technology
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• 제13권5호
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• pp.2074-2079
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• 2018

Global state space's optimal policy is used for offline controller in the form of table by using Dynamic Programming. If an optimal policy table has a large amount of control data, it is difficult to use the system in a low capacity system. To resolve these problem, controller using the compressed optimal policy table is proposed in this paper. A DCT is used for compression method and the cosine function is used as a basis. The size of cosine function decreased as the frequency increased. In other words, an essential information which is used for restoration is concentrated in the low frequency band and a value of small size that belong to a high frequency band could be discarded by quantization because high frequency's information doesn't have a big effect on restoration. Therefore, memory could be largely reduced by removing the information. The compressed output is stored in memory of embedded system in offline and optimal control input which correspond to state of plant is computed by interpolation with Inverse DCT in online. To verify the performance of the proposed controller, computer simulation was accomplished with a one link inverted pendulum.

• 대한건축학회논문집:계획계
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• 제35권8호
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• pp.47-56
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• 2019

The purpose of this study is to explore the possibility of using crowdsourcing as a means to expand the participation of citizens in the process of smart urban regeneration New Deal policy. Using mobile devices, they built a crowdsourcing prototype system that enables residents to provide location-based ideas and opinions about the urban regeneration New Deal policy and share and manage the collected data. The system was applied to the actual urban regeneration New Deal project site to draw implications. The main research results are as follows. First, crowdsourcing is a means of strengthening expertise by utilizing collective intelligence dispersed among local residents. Through the online platform developed in this study, various ideas and opinions of the community can be collected. Second, the procedural legitimacy and transparency of the rehabilitation project can be secured by expanding the participation opportunities of the residents. Third, the efficiency of project promotion can be improved through participation of residents using online platform.

• 산경연구논집
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• 제12권4호
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• pp.15-26
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• 2021

Purpose: The purpose of this study is to explore the major factors affecting the development of national identity of the Millennial Korean diasporas in the CIS countries that have rarely been explored in previous studies. In particular, this study examines how perceived identities have changed due to social, cultural, and other environmental changes and suggests policy considerations accordingly. Research design, data, and methodology: This study collected data via online survey. Factor and regression analyses were applied for data analysis. Results: The findings of this study suggest a set of factors that is different from the factors generally known to affect the diasporic identities of diasporas. The results of this study provide policy implications to help them construct identities that could more positively define their diasporic lives and relationship with homeland. Conclusions: The factors of direct experiences, such as relationship with host societies and homeland experience, exhibited strong relationship with national identity and life satisfaction of the Millennial Korean diasporas in the CIS countries. The unique characteristics of the Millennials and the long history of separation from homeland showed different results. The results of this study suggest policy considerations in regard to the Millennial diasporas in the CIS countries.

• 산경연구논집
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• 제13권5호
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• pp.1-14
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• 2022

Purpose: This study investigated the legal issues and policies on accommodation sharing based on qualitative research and examined how OECD societies establish laws and regulations to legalize accommodation sharing and prevent adverse effects. The purpose of this study is to contribute to the understanding of the different laws and regulations at both the country and city levels and to help better manage accommodation sharing in our society. The ultimate goal of this study is to enhance citizen understanding of platform businesses to minimize unnecessary conflicts. Research design, data and methodology: This study conducted a qualitative research by exploring laws and regulations in OECD countries. This study performed comparative analysis of accommodation sharing business' legislation, legal definitions, and operational policies that citizens should necessarily understand for better usage. Results: Local ordinances and regulations developed differently based on the situations of local markets and communities, so they are established and improved at the city or country level. Conclusions: Each government should consider preparing better policy on accommodation sharing by considering how to secure the housing market for residents with better establishment of new platform businesses and relationships with citizens. This study suggests policy reactions to government as policymakers, guests, hosts, platforms, and communities.

• Journal of Korea Trade
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• 제23권7호
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• pp.83-95
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• 2019

Purpose - This study analyzed the effect of the Trump Government's protectionist trade policies on foreign ownership. Specifically, this study empirically analyzes the hypothesis that foreign ownership will decrease after the Trump Government rather than before the Trump Government. Design/methodology - The hypothesis of this study is based on the expectation that US protection trade policy will negatively affect the profitability of Korean companies. The dependent variable in this study is the foreign ownership ratio, and the independent variable is a dummy variable representing before and after the Trump Government. Multiple regression analysis was performed, including the control variables suggested in previous studies related to foreign ownership. Findings - As a result, foreign ownership increased after the Trump Government rather than before the Trump Government. This study further analyzes whether the main variables affecting foreign investor's decision-making are differences before and after Trump Government. The export ratio, profitability and dividends did not differ before and after Trump Government. However, the level of information asymmetry decreased after the Trump Government than before the Trump Government. This suggests that US protection trade policies do not adversely affect the profitability of Korean companies. However, Korean firms are improving their information environment because US protectionist trade policies can lower profitability and negatively impact capital raising. In this regard, the foreign ownership ratio seems to differ before and after the Trump Government. Originality/value - This study contributes in that it presents data that US protectionist policies can affect Korean corporate governance. This study has implications from the short-term analysis of US protection trade policy.

• 산경연구논집
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• 제13권2호
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• pp.17-31
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• 2022

Purpose: The purpose of this study is to analyze factors affected by the ICT utilization with perspectives of employees (Study 1) and customers (Study 2) that are rarely approached in previous studies. In particular, this study examined how proposed factors on ICT utilization affect employee satisfaction, organization performance, customer satisfaction, and purchasing decision making. Research design, data and methodology: This study conducted an online survey to measure the effects. Cronbach's alpha was applied to test reliability and factor analysis was applied to check validity. Multiple regression analysis and ANOVA were applied to test hypotheses. Results: The results of this study found that the effects of self-development and organizational innovation on employee satisfaction were significant for study 1, while the effects of product satisfaction, promotional offers, and customer communication on purchase decision making were significant for study 2. Conclusions:This study provides managerial and policy implications. At the management level, it is necessary to make specific strategies to improve employee and customer satisfaction and organization performance associated with the utilization of ICT. The results of this study suggest that better policy should be prepared by government to foster utilization of ICT infrastructure and to enhance better relationships with employees and customers.