• Title/Summary/Keyword: growth modeling

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Implementation of MIB/MIT in CORBA based Network Management System (CORBA 기반 네트워크 관리 시스템에서 MIB/MIT 구현)

  • Cho, Haeng-Rae;Kim, Chung-Su;Kim, Young-Tak
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.28 no.2B
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    • pp.117-128
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    • 2003
  • The network management becomes more complicated due to the growth of network technology and introduction of a large number of new multimedia services. TINA has appeared as a concept for the advanced network management system platform using the information technology such as distributed processing and object oriented modeling. Since TINA is on the basis of DPE (Distributed Processing Environment), it can manage networks and services for open telecommunications. In this paper, we propose an implementation strategy of the MIB/MIT to federate various CORBA objects in CORBA based network management system implementing TINA DPE. The proposed strategy is novel in the sense that it can support the distribution of MIB/MIT that is well matched with the distributed component architecture of TINA DPE, and it can also support the scoping and filtering services on the MIT using CORBA Naming Service.

A Reliability Analysis on FDS Pyrolysis Model through Comparing the Room-Corner (ISO 9705) Test (룸 코너 콘 칼로리미터 시험(ISO 9705)과 비교를 통한 FDS 열분해 모델의 신뢰성 분석)

  • Yang, Sung-Jin;Lee, Chang-Deok;Oh, Ji-Eun;Kang, Chan-Yong;Kim, Hag-Beom;Lee, Duck-Hee
    • Proceedings of the KSR Conference
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    • 2011.05a
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    • pp.585-593
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    • 2011
  • Actual fire test under a laboratory and fire simulation by using computer are considered into main methodology in order to estimate and predict fire size of railway train. Even if practical fire size could be obtained from the full-model railway car test such as a large scale cone-calorimeter test, it is not always possible and realistic due to that expensive cost and attendant dangers could in no way be negligible. In this point of view, fire simulation analysis method based on the computational fluid dynamics could be proposed as an alternative and it seems to be also efficient and reasonable. However, simulation results have to be verified and validated in accordance with the proper procedure including comparing analysis with the actual fire test. In this paper, fire load and growth aspect was investigated through the room corner test (ISO 9705) for the mock-up model of the actual railway car. Then, it was compared with the output data derived from the simulation by using Pyrolysis Model of the FDS (Fire Dynamics Simulator, by NIST) for the exact same domain and condition corresponding with pre-performed room-corner test. This preliminary verified and validated fire modeling method could enhance the reliability of output data derived from the fire simulation under the similar domain and condition.

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Impact of Globalization on Coal Consumption in Vietnam: An Empirical Analysis

  • NGUYEN, Thi Cam Van;LE, Quoc Hoi
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.6
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    • pp.185-195
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    • 2020
  • The study investigates the impact of globalization on coal consumption in Vietnam. This study employs an autoregressed distributed lag approach on time series data for the period of 1990 to 2017. The study tests the stationary, cointegration of time series data and utilizes autoregressed distributed lag modeling technique to determine the short-run and long-run relationship among coal consumption, globalization, income, population, and CO2 emissions. The results show that globalization increases coal consumption in Vietnam in the long run. The results also show that rapid economic growth promotes more coal consumption in the short run as well as in the long run. Moreover, higher population reduces coal consumption, and CO2 emissions decrease coal consumption both in the short run and the long run. The findings of the study suggest that globalization increases coal consumption in Vietnam in the long run. This result suggests that the increase in globalization level in Vietnam increases coal consumption. An interesting finding is that higher population reduces coal consumption, and population is an important factor towards the lessening in coal consumption. The findings confirm that environmental pollution decreases coal consumption in the short run and the long run. This implies that coal consumption may be green consumption in Vietnam.

Effect of Cook's Environmental Awareness and Eco-friendly Attitude on Food Safety Pursuit Behavior (조리사의 환경의식과 친환경태도가 식품안전추구행동에 미치는 영향)

  • Lee, Jong-Ho
    • Culinary science and hospitality research
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    • v.24 no.3
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    • pp.60-70
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    • 2018
  • Rapid economic growth brought material affluence and convenience, but it also has caused a negative issue, such as environmental damage. Therefore, this research holds the purpose of grasping structural influencing relationship of environmental awareness of cook, which is taking an important role in food safety among workers in hotel restaurants with eco-friendly attitude and food safety pursuit behavior. To achieve the purpose, collected materials were tested for the fidelity, organic causation and control effect, using Structural Equation Modeling for frequency analysis, confirmatory factor analysis, credibility analysis and hypothesis testing with SPSS (V23.0) and AMOS (V21.0) programs. Environmental awareness of hotel cook has causation with eco-friendly attitude, and the attitude has meaningful causation with food safety pursuit behavior. That is, it proved that cooks are taking care of their job carefully from the pre-cooking stage while most of people ignore the storing stage. The result shows not only hotel's own training session, cook's level of consciousness on the food safety and they are working with high sense of responsibility. The limitation of this research is that it only conducted with cooks of deluxe hotels in Busan, and it could not include various variables about environmental awareness. Therefore, it is expected that the lacking contents to be dealt by a follow-up study.

An Effect on Satisfaction and Loyalty of the Characteristics in Mobile Learning: According to Gender (모바일 러닝의 특성이 만족과 충성도에 미치는 영향: 성별에 따른 분석)

  • Chung, Kyung-Soo;Lee, Won-Bin;Noh, Mi-Jin
    • The Journal of Information Systems
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    • v.19 no.3
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    • pp.75-103
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    • 2010
  • This study analyzes a model appling value in the mobile learning. We investigate the interaction, ease of use, hedonic value, and utilitarian value considering importance factors in the mobile learning, and the customer values are found to influence the customer satisfaction. We analysis a relationship between these factors and the customer satisfaction, and the relationship between the customer satisfaction and the loyalty. Finally, we research difference among gender of the satisfaction on the mobile learning. To fulfill this purpose, the research model was designed from literature review, and the structural equation modeling technique was used to evaluate hypotheses. The major results of this study are as follows. First, the ease of use, hedonic value, and utilitarian value positively influenced the satisfaction, and the satisfaction had positive influences on the customer loyalty. But the interaction didn't have positive influence on the satisfaction. Second, gender difference was found for some path coefficient. Male user's interaction and ease of use has effect on the satisfaction, and Female user's hedonic value and utilitarian value have influenced the satisfaction. When it consider the market share or the growth potential of the mobile learning industry, the results of this study will provide the useful information to manage mobile learning.

A study on Surrealism Repressed in Jean Paul Gaultier's works (Jean Paul Gaultier에 나타난 초현실주의 특성에 관한 연구)

  • Cho, Min-Jung
    • Journal of the Korean Society of Fashion and Beauty
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    • v.6 no.2
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    • pp.119-128
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    • 2008
  • The surrealism art form comes from the world of unconsciousness. Based on its expression of the world of imaginary, it boldly demonstrates the arrangement and the forms of contradicted objects and the development of collage, montage, and protage techniques in the works which had a big influence on the growth of the modern art. The ideology and the modeling characteristics shown in the surrealism had various expressive forms and meanings in the modern compound expression and it grew out of the former standarlized forms and brought diversity and individuality based on the sensibility of the new avant-garde art form and showed great potential as it presented harmony in the multiple forms of art. The purpose of the research was to analyze the influences that were put on the surrealistic fashion art works and the works of the representative designer, Jean Paul Gotie. The characteristics of Jean Paul Gotie's surrealistic fashion comes from destruction, sexual image, and the mixture of heterogeneous. It is evident that the surrealistic fashion went beyond certain groups of avant-gardists' salvation of the world and were put to practice use, reaching out to the ordinary consumers. This was resulted from the revolutionary movement called, "anti-mode van fashion" led by Gotie. The surrealistic style will be led by various techniques and trends and developed through new characteristics in multiculture merged with various fashion styles.

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Software Reliability Prediction of Grouped Failure Data Using Variant Models of Cascade-Correlation Learning Algorithm (변형된 캐스케이드-상관 학습 알고리즘을 적용한 그룹 고장 데이터의 소프트웨어 신뢰도 예측)

  • Lee, Sang-Un;Park, Jung-Yang
    • The KIPS Transactions:PartD
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    • v.8D no.4
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    • pp.387-392
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    • 2001
  • This Many software projects collect grouped failure data (failures in some failure interval or in variable time interval) rather than individual failure times or failure count data during the testing or operational phase. This paper presents the neural network (NN) modeling for grouped failure data that is able to predict cumulative failures in the variable future time. The two variant models of cascade-correlation learning (CasCor) algorithm are presented. Suggested models are compared with other well-known NN models and statistical software reliability growth models (SRGMs). Experimental results show that the suggested models show better predictability.

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Growth and Motivations for Chinese Mobile Payment Service: An Empirical Study Using Ali-Pay and Wechat-Pay Users in Chinese Market (중국 모바일 결제서비스의 발전과 사용동기 - 중국 모바일 결제서비스 알리페이, 위챗페이를 중심으로 -)

  • Yin, Changlong;Lee, Sae-Bom;Roh, In-Sung;Suh, Yung-Ho
    • Journal of Korean Society for Quality Management
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    • v.45 no.1
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    • pp.139-152
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    • 2017
  • Purpose: The purpose of this study is how Chinese users' personal traits affect the intention to use mobile payment. This research selects personal innovativeness and habit of cash payment as personal traits, and considers perceived risks and relative advantage as personal beliefs. In addition, the research divided perceived risks into three multi-faceted risks, which are privacy risk, financial risk and performance risk. Methods: The method of this study used questionnaire survey to collect 241 data on users' perception on mobile payment, and also used a structural equation modeling method. Results: The result of this paper shows that all hypotheses are statistically significant except 4 hypotheses. Conclusion: The result of this study found that personal innovativeness is negatively related with all 3 kinds of perceived risks as anticipated. And Chinese users' traditional habit of cash payment negatively affects intention to use mobile payment but is not statistically significant affecting three perceived risks. Among perceived risks, privacy risk is the most negatively influencing factor to relative advantage.

Deregulation of Aspartokinase by Single Nucleotide Exchange Leads to Global Flux Rearrangement in the Central Metabolism of Corynebacterium glutamicum

  • Kim Hyung-Min;Heinzle Elmar;Wittmann Christoph
    • Journal of Microbiology and Biotechnology
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    • v.16 no.8
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    • pp.1174-1179
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    • 2006
  • The wild-type Corynebacterium glutamicum ATIC 13032 and Corynebacterium glutamicum ATTC 13032 lysC S301Y, exhibiting a deregulated aspartokinase, were compared concerning growth, lysine production, and intracellular carbon fluxes. Both strains differ by only one single nucleotide over the whole genome. In comparison to the wild-type, the mutant showed significant production of lysine with a molar yield of 0.087 mol (mol glucose$^{-1}$) whereas the biomass yield was reduced. The deregulation of aspartokinase further led to a global rearrangement of carbon flux throughout the whole central metabolism. This involved an increased flux through the pentose phosphate pathway (PPP) and an increased flux through anaplerosis. Because of this, the mutant revealed an enhanced supply of NADPH and oxaloacetate required for lysine biosynthesis. Additionally, the lumped flux through phosphoenolpyruvate carboxykinase and malic enzyme, withdrawing oxaloacetate back to the glycolysis and therefore detrimental for lysine production, was increased. The reason for this might be a contribution of malic enzyme to NADPH supply in the mutant in the mutant. The observed complex changes are remarkable, because they are due to the minimum genetic modification possible, the exchange of only one single nucleotide.

An analysis of structural relationships among employee training, servant leadership, self-efficacy, transfer behavior of training, and knowledge sharing (교육훈련, 서번트 리더십, 자기효능감, 교육훈련 전이, 지식공유 간의 구조적 관계 분석)

  • Song, In-Sook;Kwon, Sang-Jib
    • Knowledge Management Research
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    • v.18 no.4
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    • pp.261-286
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    • 2017
  • Key factors enhancing transfer behavior of training and knowledge sharing are of great interest to researchers and executives because training transfer and knowledge sharing activities are remarkable predictors of organizational growth. This study investigates the core motivations for boosting transfer behavior of training and knowledge sharing. To empirically test the impacts of employee training, servant leadership and self-efficacy, a survey was conducted in small-medium sized companies. The data (N=292) were analyzed using structural equation modeling analysis. The results indicate that higher employee training positively leads to self-efficacy and transfer behavior of training. Servant leadership is positively leads to self-efficacy, transfer behavior of training, and knowledge sharing. Self-efficacy of employees induces greater transfer behavior of training and knowledge sharing. Finally, transfer behavior of training encourages workers to increase knowledge sharing. This study represents an initial step to examine the psychological mechanism of improving employees' transfer behavior of training and knowledge sharing activities based on the employee training qualities and servant leaderships.