• 지식경영연구
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• 제11권3호
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• pp.1-11
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• 2010

The importance of intangible assets have increased unprecedentedly with the advent of the knowledge-based society. Investment in R&D has contributed to the rise of productivity and firm-value in the capital markets. but it is very difficult to determine the economic benefits of R&D investment, due to elusive link between time requirements and the realization of firm value from R&D investment. This study examines the differential effects of R&D expenditure and patents on firm-value by industry. Patents are intangible, proprietary rights that develops new products, plays a crucial role in market competition and results in research and development activities. If firms get patents, their R&D expenditure is assumed to be successful. The study analyzes whether successful R&D expenditure has a significant effect on the firm-value. The study considers two industries : high-tech industries and low-tech industries. These industries are expected to have different effect on R&D expenditure and firm-vale. The results of the study indicate that the successful R&D expenditure increased the firm-value. Successful R&D expenditure in high-tech industries more increased the firm-value more than that in low-tech industries.

• 품질경영학회지
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• 제41권2호
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• pp.301-322
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• 2013

Purpose: This study aims to determine the needs of customers who use railroads as a mode of transportation and propose customer-oriented improvements in railroad technology by making connections between customer needs and railroad technology. Methods: We primarily used two methods for this study, AHP and QFD. First, AHP was used to evaluate the relative importance among the different components of railroad technology. Second, the QFD was applied to make a link between customer needs and railroad technology. Results: Railroad technology is largely divided into development, maintenance, and support. Empirical results showed the following improvement priorities in development, vehicle, system, line, signal/communication, power, and structure, in maintenance, vehicle, signal/communication, line, process, power, and structure, and in support, safety/precaution, management, environmental energy, operations/logistics, and station. Conclusion: Recognizing limitations in measuring the level of railroad technology when using the existing 'Technology Growth Model,' we used AHP and QFD to explore improvement directions for customer-oriented railroad technology. By offering customer-oriented services based on this study, railroad service providers will be able to acquire competitive advantage in the market.

• 기술혁신연구
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• 제16권2호
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• pp.17-40
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• 2008

The collaboration among academia, industry, and public research sector gains importance in these days. This is essential for implement competent regional and national innovation systems. There have been many governmental programs for activating collaboration among innovation actors. Most policy programs for collaboration have aimed at increasing S&T and innovation potential and constructing S&T infrastructure. However, Korea has not produced a sufficient level of collaboration, especially on regional level. Most policy programs could not reach regions and many regions have no enough innovation actors. In order to activate R&D collaboration, therefore, we suggest that Korean S&T community should build and implement "collaborative research centers" all over the regions. This concept is very new approach, especially because it focuses on collaboration among regional innovation actors. In this paper, we discuss a concept, type, and execution strategy of collaboration research centers. We expect that these centers will play an important role in implementing successful regional innovation systems, as they will link regional innovation actors very closely.

• 한국산학기술학회논문지
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• 제9권2호
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• pp.544-549
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• 2008

교육행정정보시스템(NEIS)은 인터넷을 통하여 학교와 그 상위기관간의 행정 업무를 연계하기 위하여 정부에 의해 주도된 교육 분야의 혁신적 프로젝트이다. NEIS는 교육행정업무에 대한 재설계와 정보화 전략에 따라 행정서식을 표준화하여 교원의 업무를 경감시켜 보다 나은 품질의 교육을 제공하고 온라인을 통해 관련된 교육 문제를 해결하기 위해 도입되었다. 본 논문은 NEIS의 효과적인 활용에 영향을 미치는 요인들을 도출하여 이를 계층화하고, 다중 의사결정기법을 이용하여 핵심요인간의 상대적인 중요도 평가를 통해 NEIS의 효과적인 활용방안을 모색하고자 한다. 분석결과는 NEIS의 사용자들의 만족도 제고와 향후 NEIS의 개선 전략을 개발하는데 유용하게 사용될 수 있다.

• Biomolecules & Therapeutics
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• 제26권2호
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• pp.101-108
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• 2018

G protein-coupled receptors (GPCRs) are the largest superfamily of transmembrane receptors and have vital signaling functions in various organs. Because of their critical roles in physiology and pathology, GPCRs are the most commonly used therapeutic target. It has been suggested that GPCRs undergo massive genetic variations such as genetic polymorphisms and DNA insertions or deletions. Among these genetic variations, non-synonymous natural variations change the amino acid sequence and could thus alter GPCR functions such as expression, localization, signaling, and ligand binding, which may be involved in disease development and altered responses to GPCR-targeting drugs. Despite the clinical importance of GPCRs, studies on the genotype-phenotype relationship of GPCR natural variants have been limited to a few GPCRs such as b-adrenergic receptors and opioid receptors. Comprehensive understanding of non-synonymous natural variations within GPCRs would help to predict the unknown genotype-phenotype relationship and yet-to-be-discovered natural variants. Here, we analyzed the non-synonymous natural variants of all non-olfactory GPCRs available from a public database, UniProt. The results suggest that non-synonymous natural variations occur extensively within the GPCR superfamily especially in the N-terminus and transmembrane domains. Within the transmembrane domains, natural variations observed more frequently in the conserved residues, which leads to disruption of the receptor function. Our analysis also suggests that only few non-synonymous natural variations have been studied in efforts to link the variations with functional consequences.

• 융합보안논문지
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• 제10권4호
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• pp.13-19
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• 2010

시대의 흐름에 따라 기업의 지속적인 비지니스 연계 보증을 위하여 IT의 비중이 높아지면서, IT가 조직의 하나의 부분으로서 작용하는 것이 아닌 전사적인 차원에서 정보화 사회의 경쟁 화두로서 인식되어가고 있다. 정보보안 거버넌스는 정보의 무결성, 서비스 연속성, 정보자산의 보호라는 3가지 목적으로 시작된다. 이는 기업 거버넌스에 필수적이며 투명한 부분이 되어야 하고, IT프레임워크와 연계되어야 한다. 기존의 정보보안 거버넌스 프레임워크는 그 범위가 넓어 소규모 기업 거버넌스와 이해관계를 가지지 못한 문제점이 있다. 따라서 본 논문은 단순화된 정보보안 거버넌스 프레임워크를 제안하여, 문제점을 해결하고, 제안하는 프레임워크의 안전성 분석과 효율성 분석을 통하여 제안 방법의 효율성에 관하여 알아보았다.

• Safety and Health at Work
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• 제5권3호
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• pp.152-157
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• 2014

Background: As health care workers face a wide range of psychosocial stressors, they are at a high risk of developing burnout syndrome, which in turn may affect hospital outcomes such as the quality and safety of provided care. The purpose of the present study was to investigate the moderating effect of job control on the relationship between workload and burnout. Methods: A total of 352 hospital workers from five Italian public hospitals completed a self-administered questionnaire that was used to measure exhaustion, cynicism, job control, and workload. Data were collected in 2013. Results: In contrast to previous studies, the results of this study supported the moderation effect of job control on the relationship between workload and exhaustion. Furthermore, the results found support for the sequential link from exhaustion to cynicism. Conclusion: This study showed the importance for hospital managers to carry out management practices that promote job control and provide employees with job resources, in order to reduce the burnout risk.

• The Journal of Asian Finance, Economics and Business
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• 제7권10호
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• pp.795-802
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• 2020

This study seeks to determine the effect of the application of accounting information system (AIS), internal control system, and human resource (HR) competency on the quality of local government financial statements (FS). This study uses agency theory and compliance theory. Agency theory is used to explain that there is a link between the society as the principal and the government as the agent. Compliance theory is a theory, which states that every agency is obliged to comply with regulations because the law-drafting authority has the right to dictate behavior. The population in this study were employees of the financial division of local government organizations in one of the districts in Central Java, Indonesia. The total samples in this study was 106 respondents. The data used are primary data taken from distributing questionnaires to respondents. The method of analysis used to test the hypothesis was multiple linear regression analysis. The results of hypothesis testing indicate that HR competency has an effect on the quality of FS; however, the application of AIS and internal control system has no effect on the quality of FS. The implication of this research underlines the importance of HR competency to improve the quality of local government FS.

• Journal of Information Processing Systems
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• 제7권1호
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• pp.173-186
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• 2011

Due to the disadvantages of signature-based computer virus detection techniques, behavior-based detection methods have developed rapidly in recent years. However, current popular behavior-based detection methods only take API call sequences as program behavior features and the difference between API calls in the detection is not taken into consideration. This paper divides virus behaviors into separate function modules by introducing DLLs into detection. APIs in different modules have different importance. DLLs and APIs are both considered program calling resources. Based on the calling relationships between DLLs and APIs, program calling resources can be pictured as a tree named program behavior resource tree. Important block structures are selected from the tree as program behavior features. Finally, a virus detection model based on behavior the resource tree is proposed and verified by experiment which provides a helpful reference to virus detection.

• 전력전자학회논문지
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• 제12권1호
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• pp.1-8
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• 2007

본 논문에서는 각종 산업분야에서 매우 중요한 전력전자 시스템의 신뢰성을 향상시키기 위해 전압형 인버터 시스템의 새로운 고장 검출 기법을 제안한다. 제안한 기법은 인버터 시스템의 스위치 고장 발생시에 각 상의 하단 스위치에 나타나는 전압 이상을 검출하여 고장을 판단한다. 시스템의 재구성 방법은 고장이 발생한 상을 양방향 스위치에 의해 직류-링크 중성점과 연결함으로서 4-스위치 구동으로 구성한다. 제안한 고장 검출기법은 간단한 알고리즘으로 구현되며 빠른 고장 검출이 가능하다는 장점을 갖는다. 그러므로 고장 발생 후에도 빠른 시스템 재구성을 통해 연속적인 시스템 운영이 가능하다. 제안한 고장 검출과 고장 허용 시스템의 우수성은 시뮬레이션을 통하여 검증되었다.