• 제어로봇시스템학회:학술대회논문집
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• 2002.10a
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• pp.48.3-48
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• 2002

1) Linear state feedback control design problem for plant with unknown deterministic disturbance is considered and a method to realize state feedback by using adaptive observer which estimates the unknown disturbance simultaneously is proposed. 2) From the viewpoint of practical application, we propose an extended adaptive observer with direct plant path from input to output, which is necessary to use the acceleration type sensors as plant output. 3) Theoretical result is confirmed by numerical simulation of 1-DOF vibration control system.

• 제어로봇시스템학회:학술대회논문집
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• 1986.10a
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• pp.663-668
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• 1986

State variables of an observer were made use of to realize the optimal position control of a hydraulic servosystem with the inherent nonlinearities. The range of eigenvalues of an observer suitable for the hydraulic servosystem was investigated through computer simulation. The effect of direct state feedback of hydraulic servosystem was compared with that of estimated state feedback using observer to ascertain the possibility of performance increase using observer.

• Proceedings of the KSR Conference
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• 2007.11a
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• pp.1920-1939
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• 2007

Features of procedures of dynamic synthesis are considered at use of various interpretations or models of processes in mechanical oscillatory systems. Methodological bases for research of the wave processes develop, allowing receiving some features of distribution of indignations. Authors offer scientifically-methodical bases for the decisions received analytical by.

• The Transactions of the Korean Institute of Electrical Engineers
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• v.37 no.2
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• pp.122-129
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• 1988

A design method of decentralized state observer for large scale interconnected systems is proposed by the use of interconnection rejection approach and interconnection modelling technique. The proposed design method is developed based on the interconnection partitioning. Therefore partitioning conditions are suggested. And the conditions for observer pole assignment and observer parameter determination procedures are described for possible interconnection patterns. The decentralized state observer gives good estimates without any information on the interconnection variables and estimations. In addition, a numerical example is given to explain the design procedures and to show the estimation performance of the decentralized observer.

• Perspectives in Nursing Science
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• v.11 no.2
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• pp.87-93
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• 2014

Purpose: The use of salivary biomarkers for stress research is increasing based on the convenience of collection, affordability and scientific merit. This short review provides an overview of the state of the science of salivary biomarkers utilized in research related to stress. Methods: An integrative review was conducted. Results: The trend of utilizing salivary biomarkers in stress research was reviewed, specifically, focusing on the use of endocrine and inflammatory biomarkers incorporated in previous stress research. Then, a review of sampling procedures for salivary biomarkers and the analytic methods is provided. Finally, a discussion on the strengths and areas for improvement in the use of salivary biomarkers in stress research is included. Conclusion: Salivary biomarkers as an alternative to blood biomarkers are increasingly being recognized as a legitimate source for analyzing the stress response in humans.

• Journal of the East Asian Society of Dietary Life
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• v.10 no.4
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• pp.321-334
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• 2000

This study was performed by questionnaire to investigation the nutrition knowledge, the recognition, the preference and the actual state of use of sea mustard. The subjects of this study were consisted of 901 people (426 males and 475 females) in the Daegu and Kyungpook area. The results were summarized as follows: The nutrition knowledge score of sea mustard was 11.1 for male and 12.8 for female, respectively. The recognition non sea mustard dishes showed a high mean value of 4.11 to "healthy food". 54% of the respondent liked sea mustard and favorite dish was in the order of soup, fresh, cold soup, Wrapped, salted, fried sea mustard. Soup of sea mustard was the best favorite dish, followed by fresh sea mustard, cold soup, wrapped, salted, fried sea mustard, in descending order. Soaking time of sea mustard was 11~20 minutes and its percentage is 31.1%, 39.6% of responders suggested ′good quality′ as facts that has been improved in the commercial sea mustard.

• International Journal of Human Ecology
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• v.7 no.2
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• pp.97-110
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• 2006

A conceptual framework, based on a curriculum model of family life education content, and on a schema for analyzing explicit use of theory, was developed to discern the substantive themes of programs and the role of theories in publications on programs for families in the Korean family studies literature. Seventy two journal articles published between 1990 and 2002 were analyzed. The results revealed that the Korean family life education programs dealt with the breadth of topics, but most particularly internal family dynamics and interpersonal relationships, and utilized theoretical concepts as input and output in a different level: explicit, implicit, or no use of theories. Implications for future research and practice in Korean family life education are discussed, including gaps in the substantive foci of programs, and aligning programs more closely with theory.

• The Research Journal of the Costume Culture
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• v.20 no.3
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• pp.430-442
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• 2012

This study focused on how the U.S. apparel companies use social media as a new marking channel. On Facebook Wall the contents of messages in English initiated by companies and consumers were investigated and categorized by using content analysis. Chi-square analysis and t-test were utilized to compare the use of social media by companies with higher and lower business performance. The majority of messages initiated by apparel companies gave their consumers useful information about new products, promotions, and recruiting. On the other hand, messages initiated by consumers contained a variety of content related to companies, users, and products. Apparel companies with lower business performance were more actively engaged in posting messages and responding to consumers. The results will be helpful in employing social media to build new marketing strategies through direct communications with consumers.

• Mycobiology
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• v.49 no.3
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• pp.201-212
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• 2021

Truffles are the fruiting bodies of ascomycete fungi that form underground. Truffles are globally valued, culturally celebrated as aphrodisiacs, and highly sought-after delicacies in the culinary world. For centuries, naturalists have speculated about their mode of formation, and in cultures surrounding the Mediterranean Sea, many species have been prized as a delectable food source. Truffle fruiting bodies form underground and emit a variety of volatile organic compounds (VOCs). Truffle volatiles are believed to have evolved to attract animals that disperse their spores. The main VOCs identified from truffles include sulfur compounds, such as dimethyl sulfide (DMS) and dimethyl disulfide (DMDS); in addition, 1-octen-3-ol and 2-methyl-1-propanol have been found in most truffle species. Humans use pigs and dogs trained to detect truffle VOCs in order to find these prized subterranean macrofungi. Truffles have pharmacological potential, but until more reliable cultivation methods become available their high price means they are unlikely to see widespread use as medicinals.

• International Journal of Computer Science & Network Security
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• v.22 no.8
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• pp.61-66
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• 2022

Digital education has emerged all over the world with a new wave of learning innovations and opportunities. Higher education institutions need to develop the digital competence of future specialists and train teachers who are creative individuals, have the skills to use digital technologies, and are able to solve problems, make important decisions, effectively manage their own lives, and realize their potential. In this aspect, the strategy for evaluating the results of the educational achievements of future specialists is important. The purpose of the article is to analyze the use of distance technologies in higher education institutions in the context of the development of a system for assessing the quality of education. Methodology implies the application of theoretical methods of analysis.