• Title/Summary/Keyword: OO

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Analysis of Slope Stability at the End of OO tunnel being Distributed by Mica Schist (운모편암 분포지인 OO 터널 종점부에서 절토사면의 안전성 분석 연구)

  • Lee, Byung-Joo;SunWoo, Choon
    • The Journal of Engineering Geology
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    • v.19 no.3
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    • pp.287-294
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    • 2009
  • To be design the slope, the area distributed the mica schist which was metamorphosed by shale or mudstone must carefully consider the stability. Mica schist is another unstable rock for slope by schistosity, cleavage, axial plane of a fold etc. In general mica schist contains the swelling clay minerals such as smectite, vermiculite and montmorillonite. These minerals make the slope unstable. At OO tunnel construction area for the rail way of the Kyungbu high speed train, the slope of mica schist is very unstable by the distribution phenomena of the discontinuous plane such as joints which are 1-5 cm spacing and thrust and strike-slip fault. By the drilling core of this area, most RQD have 0-20%.

Design and Implementation of OLE-Container for an Object-Oriented CASE Tool, OODesigner (객체 지향 CASE 도구 OODesigner에 대한 OLE-Container 기능의 설계 및 구현)

  • Choi, Gil-Rim;Kim, Tae-Gyun
    • Journal of Korea Multimedia Society
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    • v.8 no.4
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    • pp.575-585
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    • 2005
  • Research and development projects, in the past decade, has shown that object-oriented(OO) technology could importantly contribute in productivity and reusability improvement. There are various research areas related to OO technology. Two of major research fields in this areas are concerned in issues for CASE tools and component-based technologies. This paper discusses an example of applying component-based technology to a CASE tool. This paper proposes the research experience gained while we have incrementally developing OODesigner, an OO CASE tool, with compound document support functionality based on COM/OLE technology. As OODesigner with OLE container functionality has interoperability with other application programs of Windows system which can be run as a OLE server, it can provide more powerful documentation environment than other CASE tools. OODesigner can be used not only to design UML diagrams, but also to make documentation cooperatively with various kinds of OLE- enabled software like Recoder and Excel. Therefore we can conduct powerful and consistent documentation with the tool.

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Isolation of Enterobacter Cloacae Producing Phytase and Medium Optimization of Its Production (Phytase를 생산하는 Enterobacter cloacae의 분리 및 효소 생산의 배지 최적화)

  • 송민동;김영훈;양시용;김대영;김창원;정원형;권문남
    • Microbiology and Biotechnology Letters
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    • v.29 no.2
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    • pp.78-83
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    • 2001
  • Phytase (myo-inositol hexakisphosphate phosphohydrolase: EC 3.1.3.8) hydrolyzes phytic acid (myo-inositol hexakisphosphate) to myo-inositol and monophosphates. In order to obtain phytase producing bacteria, many samples were collected from various soils. Among thirty-five phytase-producing strains, YH100 showed the highest phytase activity. In order to identify the selected YHlOO strain, the morphological and physiological characteristics were examined according to the method of Bergey's manual by 168 rRNA sequence, cellular fatty acids profile, O+C contents and physiological test using API 20E kit. The strain YH100 identified to be a genus of Enterobacter cloacae and was named as Enterobacter cloacae YHlOO. Optimum medium for the phytase production by the Entemhacter c!o([we YHlOO was composed of 2.0%(w/v) glucose, 1.0%(w/v) peptone, 1.0%(w/v) beef extract, 0.1 %(w/v) KCI. and 0.1 %( w/v) sodium phytate.

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Geology of the Hawaii Island and Volcanic Activities of Mauna Loa and Kilauea (하와이 섬의 지질과 마우나로아 및 킬라우에아의 화산활동)

  • 황상구;이문원;원종관;우경식;이광춘
    • The Journal of the Petrological Society of Korea
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    • v.12 no.4
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    • pp.184-195
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    • 2003
  • Hawaii Island makes up of five volcanos of Kohala, Mauna Kea, Hualalai, Mauna Loa, and Kilauea. They are big shield volcanoes rising above the Pacific ocean floor and final two volcanoes provide a natural laboratory for the study of active volcanoes. Mauna Loa is the largest single volcano on earth. At the submmit is an oval-shaped Mokuaweoweo caldera, from which two rift zones extend to the southwest and northeast, and in the medial part are the longest lava tube systems in the world. Kilauea has been formed largely by eruption along southwest and eastern rift zones extending from Kilauea caldera at the submmit. On the eastern rift zone, spectacularly, the 1989-1974 eruption of Kilauea at Mauna Ulu crater formed the Mauna Ulu lava flow field. The 1983-1986 eruption of aa flows at Puu Oo crater, and the activities of pahoehoe flows during 1986-1990 at Kupaianaha crater and during 1991-recent at the Puu Oo has produced the Puu Oo and Kupaianaha lava flow field.

UML Documentation Using Compound Document (복합문서를 이용한 UML 문서화)

  • Choi, Gil-Rim;Kim, Tae-Gyun
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • v.9 no.1
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    • pp.796-799
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    • 2005
  • Two of major research fields in this area are concerned in issues for CASE tools and component-based technologies. This paper discusses an example of applying component-based technology to a CASE tool. This paper proposes the research experience gained while we have developing OODesigner, an OO CASE tool, with compound document support functionality based on COM/OLE technology. OODesigner can be used not only to model UML diagrams, but also to make documentation cooperatively with various kinds of OLE servers and containers. Therefore we can conduct powerful and consistent documentation with the tool. In this paper, we present design issues for incrementally implementing the compound document support facilities as a container and a server and show a brief sample for demonstrating the usability of the OLE enabled CASE tool.

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A Software Complexity Measurement Technique for Object-Oriented Reverse Engineering (객체지향 역공학을 위한 소프트웨어 복잡도 측정 기법)

  • Kim Jongwan;Hwang Chong-Sun
    • Journal of KIISE:Software and Applications
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    • v.32 no.9
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    • pp.847-852
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    • 2005
  • Over the last decade, numerous complexity measurement techniques for Object-Oriented (OO) software system have been proposed for managing the effects of OO codes. These techniques may be based on source code analysis such as WMC (Weighted Methods per Class) and LCOM (Lack of Cohesion in Methods). The techniques are limited to count the number of functions (C++). However. we suggested a new weighted method that checks the number of parameters, the return value and its data type. Then we addressed an effective complexity measurement technique based on the weight of class interfaces to provide guidelines for measuring the class complexity of OO codes in reverse engineering. The results of this research show that the proposed complexity measurement technique ECC(Enhanced Class Complexity) is consistent and accurate in C++ environment.

A Study on Conversion Between UML and Source Code Based on RTT(Round-Trip Translator) (RTT(Round-Trip Translator) 기반의 UML과 소스코드 변환에 대한 연구)

  • Kim, Ji Yong;Cho, Han Joo;Kim, Young Jong
    • KIPS Transactions on Software and Data Engineering
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    • v.8 no.9
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    • pp.349-354
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    • 2019
  • s programming education becomes more important in recent years, it is necessary to learn how the source code written by students reflects Object-Oriented(OO) concepts. We present a tool called the Round-Trip Translator(RTT) that transforms the Unified Modeling Language(UML) class diagram and Java source code to provide a web-based environment that provides real-time synchronization of UML and source code. RTT was created by improving existing RTE and is a tool for students who are learning OO concepts to understand how their UML or source code reflects the concepts that user intended. This study compares the efficiency and user- friendliness of RTT with the existing Round-Trip Engineering-based tools. The results show that students have improved understanding of OO concepts through UML and source code translation by using the RTT. We also found out that students were satisfied with the use of the RTT, which provides more efficient and convenient user interface than the existing tools.

Evaluation of Physical and Mechanical Properties based on Liquid Composite Molding (액상성형공정별 물리적/기계적 특성 비교 평가)

  • Park, Dong-Cheol;Kim, Tai-Gon;Kim, Seung-Hyeok;Shin, Do-Hoon;Kim, Hyeon-Woo;Han, Joong-won
    • Composites Research
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    • v.31 no.6
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    • pp.304-310
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    • 2018
  • Autoclave process has been remaining as one of the most robust and stable process in fabricating structural composite part of aerospace industry. It has lots of advantages, however exhibits some disadvantages or limitations in capital investment and operation. Recently, there have been various Out-of-Autoclave process being researched and developed to overcome those limitations. In this study, laminate specimens were fabricated using LCM (Liquid Composite Molding) process, regarded as one of potential OoA process. DB (Double bagging), CAPRI (Controlled Atmospheric Pressure Resin Infusion), VAP (Vacuum Assisted Process) and Autoclave process were used for laminate specimens. Void content, Thickness, Tg (Glass Transition Temperature), ILSS (Interlaminar Shear Strength) and Flexural strength properties were evaluated for comparison. It is verified that Autoclave based specimen has uniform thickness distribution, the lowest void content and outstanding mechanical properties. And, CAPRI based specimen exhibits relatively good physical and mechanical properties over DB and VAP based specimen and comparable mechanical properties with autoclave based specimen.