• Title/Summary/Keyword: Realization

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A STUDY ON THE RELATION BETWEEN CLOSED-FORM DESCRIPTION AND RECURSIVE-FORM REALIZATION OF ASAPTIVE CONTROL OF MANIPULATORS

  • Kubozono, Takeshi;Yamakita, Masaki;Furuta, Katsuhisa
    • 제어로봇시스템학회:학술대회논문집
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    • 1991.10b
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    • pp.1785-1789
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    • 1991
  • Recently, a number of papers on adaptive control scheme of manipulators are proposed. Slotine and Li[1] showed an adaptive control scheme for robot manipulator. The controller was described in closed form. And later Niemeyer and Slotine discussed about a computational implementation of the controller in recursive form[2]. Walker proposed another adaptive control scheme which can be implemented by a recursive-form controller[4]. Closed-form description is used for the analysis or design of adaptive control systems while recursive-form realization is used for implementation of the controller. The relation between the closed-form realization and the recursive-form one seems to be inadequately referred. Hence, it makes sense to consider the relation between the closed-form description and the recursive-form one. In this paper, first, we make a simple derivation of an closed-form dynamics description of a robot arm from its recursive-form description. And then we derive the closed-form realization of Walker's scheme applied to manipulators having no kinematic loop. We clarify the difference between the Walker's scheme and Slotine's and evaluate the convergence under the controllers.

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Intonational Characteristics of Korean Focus Realization by American Learners of Korean

  • Oh, Mi-Ra;Kang, Sun-Mi;Kim, Kee-Ho
    • Speech Sciences
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    • v.11 no.1
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    • pp.131-145
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    • 2004
  • The informative or important entities in utterances are focused and the focused items are usually accompanied by changes in phonetic manifestation. Phonetic realizations triggered by focus include changes of tonal contours as well as segmental strengthening. Focus in Korean is characterized by new phrase initiation, dephrasing, and initial tone contour with an enlarged pitch range in addition to segmentally lengthened initial segment. Focusing on the prosodic cues which play an important role in delivering the speakers' intention, this study aims to find out what intonational characteristics of Korean focus are realized by English learners of Korean. The English learners are divided into two groups according to their fluency in Korean, and the differences in focus realization between each group are discussed. Furthermore, the phonological and phonetic realizations of focus by English learners of Korean are compared to those by Korean native speakers. The results of this study yields two suggestions for Korean intonation education of L2 learners. First, the comparison between the two speaker groups can give better understanding in how and why the Korean intonation of English speakers is different from that of Koreans. Second, each phonological and phonetic characteristic of focus realization can weigh differently and its realization provides a criterion for evaluation of L2 Korean proficiency.

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Development of Priority Evaluation Framework for IT System Consolidation using Global Single Instance in Hightech Industry (하이테크 분양의 GSI 구현 대상 우선순위 평가 방법 및 적용 방안 연구)

  • Lee, Chi-Hun;Chang, Min-Yong;Seo, Jong-Hyen
    • Journal of the Korea Safety Management & Science
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    • v.11 no.1
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    • pp.175-182
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    • 2009
  • The effort for GSI based IT system consolidation has been continued due to the increase of the system and complication increase of system connection, mainly by the global company. Since successful example of GSI realization by part of developed company affect to Korea, global level IT system consolidation has been examined mainly by the domestic company that have great deal of overseas business. Although they have examined consolidation possibility mainly on R&D, finance, operation management part which is the base part of company management, there are limitation for consolidation realization because of the difference between regional business problem of huge cost needed for consolidation. To overcome these realization limitations, it is necessary to lead risk and cost reduction through stepwise part unity and decide Priority Evaluation Framework for Consolidation target and systematic consolidation strategy. For GSI realization, appropriate distributions of unification time according to target system are needed. In this study, based on easiness and usefulness of consolidation and connection between the targets, evaluation methodology for Priority Evaluation Framework of system consolidation has been developed. Priority Evaluation Framework has been decided by applying developed methodology to global production company of high tech industrial part. Through this methodology, companies can realize successful and stable GSI by investing global resources intensively by Priority Evaluation Framework of consolidation target system.

A Study on the Realization Methods of Space Design and the Concept of Shiro Kuramata's Design thinking 'Unphenomenon' (쿠라마타 시로의 디자인사고 '미현상(未現象)'의 개념과 공간 디자인 구현방법에 관한 연구)

  • Park, Chan-Il;Jung, Min-Hee
    • Korean Institute of Interior Design Journal
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    • v.19 no.1
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    • pp.27-36
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    • 2010
  • The purpose of this study is to define concept and characteristics of "Unphenomenon", the design concept conceived by Shiro Kuramata who is a world renowned Japanese interior designer and to explore how his ideas were materialized in his works. This study 1) examines his experience during his childhood reflected in his essay The scenery of the Unphenomenon' and training in Kuwazawa Design Institute that made Shiro Kuramata a true interior designer, and also considers how his design philosophy had been built up and realized under the unique social situation at the time. 2) defines the concept and characteristics of "Unphenomenon" as substance of his design philosophy by surveying remarks in his books and comments made by people around him in press interviews. 3) concludes his own design method and uniqueness by analyzing his works based on them. As a result, the study has founded that 1) transparency as recognitive realization of existence and non-existence: non-existence of physical property, connotation, ambiguity 2) expression of uncommonness by correcting and reinterpreting common prejudices: flotation, distortion of scale and shape 3) realization of insubstantiality by removing and replacing material and shape: replacement into light, removal of the structure, multiple layers of meaning.

Current Issues and Policy Strategies for the Realization of U-City (u-City 구현을 위한 정책과제와 추진전략)

  • Kim, Jung-Hoon;Cho, Chun-Man
    • Journal of the Korean Association of Geographic Information Studies
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    • v.10 no.4
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    • pp.168-178
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    • 2007
  • As the title signifies, the current study aims at the realization of u-City, which is short for the Ubiquitous City. For this purpose, firstly, the meaning of u-City realization is sought in the study based on future urban changes. Along with this, current issues in the course of u-City realization are gathered based on in-depth interviews with relevant experts. Thirdly, necessary for the comprehensive planning and management of u-City, several strategies are presented by classifying it into u-Infra and u-Service, and considering relevant laws and regulations. And the study divided the execution process into project, development and management levels, and then suggests some realization strategies that are level-dependent.

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Life History Study on the Self-realization of Woman in the Abstinence Process (단주과정에 있는 여성의 자기실현에 관한 생애사 연구)

  • Kang, Sun Kyung;Lee, Joong Gyo;Cha, Myeong-Hee
    • The Journal of the Korea Contents Association
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    • v.20 no.1
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    • pp.505-518
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    • 2020
  • This study is a life history on self-realization of woman in the abstinence of alcohol process. The purpose of the study is to explore the circumstance of female alcoholism, to expand the prospect of discussion for treatment and recovery, and to suggest social welfare intervention measures. The study involved a female alcoholic who had been recovering for more than seven years, and the text for life history analysis was divided into 'dimension of life', 'turning point' and 'adaptation' based on the life history analysis framework proposed by Mandelbaum. As a result of the data analysis, 'dimension of life' was analyzed into three areas, such as the personal level of life, the family level of life, and the social dimension. 'Turning point' is to escape from a father who drinks alcohol and uses violence, to give up his job to avoid boss's abuse, and to proceed one's own way of healing. 'Adaptation' was derived into good at studying, relieving anger by drinking alcohol, and referring to AA and self-realization. Based on these findings, this study presented the social welfare practice and policy discussion focused on self-realization.

A Study on the realization of the right to be forgotten on social normative context: focusing on comparison of Korea-US-EU and the legal, technical, and service market (사회규범적 맥락에서 본 잊혀질 권리의 다차원적 실현범위 연구: 한-미-EU 비교 및 법제, 기술, 서비스 시장의 비교를 중심으로)

  • Shim, Mina
    • Journal of Convergence for Information Technology
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    • v.8 no.2
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    • pp.141-148
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    • 2018
  • The purpose of this paper is to explore the scope of realization of multiple perspectives so that the implementation of the right to be forgotten is more realistic than the ideal information deletion concept. We examined domestic and foreign legal system and technology/service trends, and reflected the classification realization level of service realization, processing type and information characteristics of personal information processor, and legislative/technical factors for multi-level scope analysis. As a result, we have presented a matrix of the range of realization of the right to be forgotten and the scope of diversified regulation by the subject of protection. This study will be extended to the convergence of law and engineering, and will contribute to the prediction of social costs and expansion of the market by identifying the scope of 'deletion rights'.

How to Improve the Evaluation Methods of IT Outcomes in Government Organizations: A Perspective of Benefits Realization (공공부문 정보기술 성과평가의 개선방안에 관한 연구: 성과실현 관점)

  • Kim, Choong-Nyoung
    • Journal of Digital Convergence
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    • v.9 no.2
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    • pp.15-31
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    • 2011
  • Information Technology represents substantial financial investment for government organization. However, it seems that the real goal of IT investment, which is to make government more efficient, effective, and responsible through IT systems, has not been seriously aware of in the government organizations. As a result, despite of large investment in IT over many years, substantial benefits accrued to the work, such as process innovation and work efficiency, have not actually occurred. In this paper, it is argued that, since IT benefits will not be realized without any effective benefits realization efforts, it is needed in IT evaluation to put more emphasis on the efforts. Therefore, it is suggested that appropriate IT evaluation can possibly work as a guideline for deriving the desired benefits through the IT investment. In this study, some of the well known approaches were reviewed about what IT evaluation and IT benefits realization efforts should be. Current evaluation method was analyzed from the perspective of benefits realization. On the basis of the analysis, this study leads to suggestions that improve the current ways of evaluating IT performance, helping government focus on realizing practical IT benefits at work.

ABox Realization Reasoning in Distributed In-Memory System (분산 메모리 환경에서의 ABox 실체화 추론)

  • Lee, Wan-Gon;Park, Young-Tack
    • Journal of KIISE
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    • v.42 no.7
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    • pp.852-859
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    • 2015
  • As the amount of knowledge information significantly increases, a lot of progress has been made in the studies focusing on how to reason large scale ontology effectively at the level of RDFS or OWL. These reasoning methods are divided into TBox classifications and ABox realizations. A TBox classification mainly deals with integrity and dependencies in schema, whereas an ABox realization mainly handles a variety of issues in instances. Therefore, the ABox realization is very important in practical applications. In this paper, we propose a realization method for analyzing the constraint of the specified class, so that the reasoning system automatically infers the classes to which instances belong. Unlike conventional methods that take advantage of the object oriented language based distributed file system, we propose a large scale ontology reasoning method using spark, which is a functional programming-based in-memory system. To verify the effectiveness of the proposed method, we used instances created from the Wine ontology by W3C(120 to 600 million triples). The proposed system processed the largest 600 million triples and generated 951 million triples in 51 minutes (696 K triple / sec) in our largest experiment.

Realization of Focal Accent in VP-ellipsis (동사구 생략에서의 초점억양 실현양상)

  • Kim, Hee-Sung;Lee, Young-Jae;Kim, Kee-Ho
    • Speech Sciences
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    • v.9 no.3
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    • pp.237-250
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    • 2002
  • Linguistically, 'Focus' is the element which includes new or unpresupposed information. It is usually signalled by prosodic prominence called the 'pitch accent'. The purpose of this study is to observe the realization of the focal accent in VP-ellipsis, especially, to affect the meaning recovery of elided VP. Asher (1999) gave evidence that focal stress should be on the higher verb and the AUX in order to recover the elided VP to the lower one. In this paper, the systematic patterning of focal accent to decide the elided meaning in VP-ellipsis is to be observed. The realization of focal accent by English native speakers is set as the criteria for the meaning recovery of the elided VP and is compared to Koreans'. Moreover, the focal accents of Koreans are observed and compared with respect to their English proficiency levels.

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