• Title/Summary/Keyword: Objective Object

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Database Design Methodology : Converting a Relational Schema into an Object-Relational Schema

  • Sunit Gala;Kim, Won
    • The Journal of Information Technology and Database
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    • v.1 no.1
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    • pp.9-30
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    • 1994
  • The objective of this paper is to give a brief review of relational design methodology, and show how a relational schema can be converted into an object-relational schema. We first introduce relational terminology and describe the relational design process along with its limitations. Next we show how the relational model can be extended to overcome these limitations : these extensions form the core of an object-relational data model ; we use the UniSQL/X data model as an example. We illustrate the process or converting a relational schema into an object-relational schema, and show the benefits of this conversion with respect to queries. The conversion process is then summarized as a set of guidelines. Finally, we make our conclusions.

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A Study on the Wall as Objects in Contemporary Interior Architecture (현대 실내건축의 벽의 오브제(object)적 특성에 관한 연구)

  • 최선영;김도훈;이정욱
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2001.05a
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    • pp.45-50
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    • 2001
  • The modern architecture has to find more essential configuration order rather than the spatial order in the reasonable feint. In other side, paintings and sculptures as a part of the building in the past become a pure art and develop an abstract art. Also they make many affects on the modern architecture as a paradigm. New material has brought to the new forms and the changes of the overall culture and art. One of the new changes has made the object that is one of unique culture symptoms in the 20C and the general part of the modem art includes it. The wall that limits the inside area through mass and volume before the recent times had treated as the object to express the special mean and character. However, the wall has developed as a component that consists of the internal space through surface and volume rather than mass or structure since the recent times. Now, I survey the objective tendency of the wall in the modem interior architecture mainly focused on the relation between object in the abstract art and wall inside.

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Design of Object Manager for MPEG-4 Stream in the Wireless Multimedia Service Environment (무선 멀티미디어 서비스 환경에서 MPEG-4 스트림을 위한 객체 관리기의 설계)

  • 최숙영
    • Journal of Korea Society of Industrial Information Systems
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    • v.8 no.3
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    • pp.1-11
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    • 2003
  • MPEG-4 provides high compression rate and uses object-oriented method to describe components of its structure, which has currently risen as the core technique in multimedia service fields. Our research objective is to provide object manager to MPEG-4 system in order that effective multimedia service could be available by supporting powerful interaction and adapting to various networks and terminals. Through the object manger, priorities are given to objects of a scene tree and the objects having higher priorities are first rendered according to the terminal capability. It also manages synchronization and update of the scene tree and object informations caused by user interactions.

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Reading Projected Objects: Thing Theory and Sensation Novels (욕망화된 사물읽기: Thing Theory와 선정소설)

  • Kim, Heesun
    • English & American cultural studies
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    • v.18 no.2
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    • pp.51-78
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    • 2018
  • To put it simply, thing theory is a study of meaningful capacities of materiality. Although T. S. Eliot regarded pathetic fallacy as the bad example of objective correlatives in his modernism poetry theory, it is clear that many objects in literary works reflect diverse human desires. Among many, Victorian sensation novels are the most distinct genre where the various paraphernalia in them indicate the distorted and exaggerated greed of the industrial revolution era. Whereas the male protagonists are usually related with the norms objects of authority such as portrait and locket, the female characters' connection with cosmetics and white dress shows their oppressed and fragile position in the patriarchal and hierarchical society. In the (post)modern society, the ambiguity of things has grown rapidly due to the increasing discrepancy between objects and things. In special, the new journalism and the psychological realism novels often reveal the post-truth phenomenon because consumerized audience depend more upon the attraction and affect than the mere evidence and facts. For the individual, according to object relations theory, these alternative facts are rather internalized into their mind as the internal object when they are motivated by the non/contact with primary caregivers in their childhood. The dominant material imagery in (post)modern fiction becomes the site of resistance because of their reconstructed and extended meaning. The object relations theory and thing theory can be effectively used to uncover the complicated meanings of desired objects by using the human-object's meaningful relations and early mental images that are secretly alive still in the present.

A Study on the Design of Upward and Downward Traverse Units in an Automatic Object Changer Unit to Establish a Flexible Production System (Part 1) (유연생산 시스템 구축을 위한 공작물 자동교환 유닛의 상하 이송 기구 설계에 관한 연구(파트 1))

  • Park, Hoo-Myung;Kang, Jin-Kab;Lee, Yong-Joong;Ha, Man-Kyung
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.7 no.2
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    • pp.45-51
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    • 2008
  • The objective of this study is to develop an automatic object changer unit to improve processing problems existed in the conventional horizontal machining center. In order to perform this objective, a upward and downward traverse unit in which a unit that consists of a motor and reducer, chain and sprocket wheel, and upper and lower base employed in an automatic object changer unit performs sliding contact motion in a frame was designed. To achieve this design, constraint conditions for the upward and downward traverse unit first designed. Then, an operation mechanism was designed and that was introduced as a sum of kinetic energy for the sprocket wheel and upper and lower base based on the moment of inertia, which is the kinetic energy of the converted upward and downward traverse unit in the side of the reducer. In addition, The work required to rotate the converted upward and downward traverse unit in the side of the reducer by one revolution can be calculated using the sum of work that is required in the sprocket wheel and upper and lower base that is a part of the upward and downward traverse unit. Furthermore, the converted equation of motion in the side of the motor can be introduced using the equation of motion using the converted upward and downward traverse unit in the side of the motor. Then, Then, a proper motor can be determined using predetermined specifications employed in the motor and several parameters in the upward and downward traverse unit in order to verify such predetermined specifications. Also, a design of a horizontal traverse unit that performs sliding motion on a upward and downward traverse unit and simulation that verifies the results of this design are required as a future study.

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The optimum design for rotating shaft centrifugal pump (원심펌프축계의 최적설계)

  • ;;Iwatsubo, T.
    • Journal of Advanced Marine Engineering and Technology
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    • v.13 no.1
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    • pp.69-76
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    • 1989
  • This paper presents a method of the optimum design for rotating shaft of centrifugal pump. That is, the object is to optimize the system in stability at the operating speed, unbalance response in the vicinity of the rotor critical speed, leakage flow of the seals. The objective function is composed of these three elements and is minimized by changing seal cleareance, diamoters, and lengths. A typical double suction centrifugal pump is analyzed and its objective function is presented. Then the optimum dimensions of seals are obtained, and vibration characteristics at both initial and optimum conditions are investigated.

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Design and Implementation of JPetStore Order System Based JBoss Seam Framework (JBoss Seam 프레임워크를 기반으로 JPetStore 주문시스템의 설계 및 구현)

  • Lee, Myeong-Ho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.5
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    • pp.1708-1715
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    • 2010
  • This paper proposes an object-oriented software development guidance and an evaluation index for the productivity related to Seam Framework. Heavyweight and lightweight architecture to resolve the problem with benefits to support the new architecture is a large size distributed object standardization architecture. This architecture, such as the Seam Framework, to provide all of the architecture is possible. The distributed object standardization architecture is most often used in business Seam Framework is well-known architecture. Therefore, this study is based on the Seam Framework large distributed object architecture, design and implementation of JPetStore order system based standardization software development productivity and the objective is to provide guidance.

Design and Implementation of Distribution in Distributed Object-Oriented Databases (분산 객체지향 데이타베이스에서 분산 설계 및 구현)

  • Lee, Soon-Mi;Park, Hea-Sook;Ha, Yan
    • The KIPS Transactions:PartB
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    • v.11B no.5
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    • pp.611-618
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    • 2004
  • This paper addresses the design and implementation of class distribution in distributed object-oriented databases. The proposed strategy of distribution consists of two-step design of fragments. One is class fragmentation and the other is allocation of fragments. In step of class fragmentation, we have defined partitioning algorithms to reflect the characteristics of object-oriented databases such as method, inheritance and composite-object. In step of allocation, we have defined the objective function for allocation considering system operating cost including storage, query processing and communication and implemented it using Genetic Algorithm.

A Study on an Extended Fuzzy Cluster Analysis (확장된 Fuzzy 집락분석방법에 관한 연구)

  • Im Dae-Heug
    • Management & Information Systems Review
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    • v.9
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    • pp.25-39
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    • 2002
  • We consider the Fuzzy clustering which is devised for partitioning a set of objects into a certain number of groups by assigning the membership probabilities to each object. The researches carried out in this field before show that the Fuzzy clustering concept is involved so much that for a certain set of data, the main purpose of the clustering cannot be attained as desired. Thus we propose a new objective function, named as Fuzzy-Entroppy Function in order to satisfy the main motivation of the clustering which is classifying the data clearly. Also we suggest Mean Field Annealing Algorithm as an optimization algorithm rather than the. ISODATA used traditionally in this field since the objective function is changed. We show the Mean Field Annealing Algorithm works pretty well not only for the new objective function but also for the classical Fuzzy objective function by indicating that the local minimum problem resulted from the ISODATA can be improved.

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A Study of an Extended Fuzzy Cluster Analysis on Special Shape Data (특별한 형태의 자료에 대한 확장된 Fuzzy 집락분석방법에 관한 연구)

  • 임대혁
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.25 no.6
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    • pp.36-41
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    • 2002
  • We consider the Fuzzy clustering which is devised for partitioning a set of objects into a certain number of groups by assigning the membership probabilities to each object. The researches carried out in this field before show that the Fuzzy clustering concept is involved so much that for a certain set of data, the main purpose of the clustering cannot be attained as desired. Thus we propose a new objective function, named as Fuzzy-Entroppy Function in order to satisfy the main motivation of the clustering which is classifying the data clearly. Also we suggest Mean Field Annealing Algorithm as an optimization algorithm rather than the ISODATA used traditionally in this field since the objective function is changed. we show the Mean Field Annealing Algorithm works pretty well not only for the new objective function but also for the classical Fuzzy objective function by indicating that the local minimum problem resulted from the ISODATA can be improved.