• Title/Summary/Keyword: modeling.

Search Result 31,380, Processing Time 0.052 seconds

The Development of Interface technology Between 3D Modeling Data and Cable Engineering Program Data (전선로 3D Modeling 데이터와 케이블 엔지니어링 데이터의 연계 기술개발)

  • Cho, Sung-Don;Yoo, Gi-Hong;Kim, Soon-Goo
    • Proceedings of the KIEE Conference
    • /
    • 2007.07a
    • /
    • pp.400-401
    • /
    • 2007
  • 3D Modeling S/W인 PDS(Plant Design System)의 Electrical Raceway Modeling Software인 EE-Raceway로 작성된 DB에서 트레이, 트레이 Link, Fitting 데이터를 추출하여 케이블 엔지니어링 프로그램의 Input 자료로 활용하는 연계기술과 활용에 대하여 소개하고자 한다

  • PDF

The Resistivity Modeling of Ion Implanted Polycrystalline Silicon (이온주입에 의한 다결정 실리콘의 고유저항 모델링)

  • Park, Jong Tae;Lee, Moon Key;Kim, Bong Ryul
    • Journal of the Korean Institute of Telematics and Electronics
    • /
    • v.23 no.3
    • /
    • pp.370-375
    • /
    • 1986
  • In this paper, modeling of the conduction mechanism of ion implanted p-type polycrystalline silicon is studied. From this modeling, the resistivity of p-type polycrystalline and its dependence on dopant concentration are calculated. The proposed modeling whose grain size is about 1450 \ulcorneris shwon to agree well with the experimental result.

  • PDF

A Study on Effective Methods of Polygon Modeling through Modeling Process-Related System (모델링 공정 연계 시스템을 통한 효율적 폴리곤 모델링 기법에 대한 탐구)

  • Kim, Sang-Don;Lee, Hyun-Seok
    • Cartoon and Animation Studies
    • /
    • s.37
    • /
    • pp.143-158
    • /
    • 2014
  • In the modeling processes of 3D computer animation, methods to build optimal work conditions to realize real forms for more efficient works have been advanced. Digital sculpting software, published in 1999, ZBrush has been positioned as an essential factor in character model work requiring of realistic descriptions through different manufacturing methods from previous modeling work processes and easy shape realization. Their functional areas are expanding. So, in this production case paper, as a method to product more optimized animation character models, the efficiency of production method linking digital sculpting software (Z-Brush) and animation production software (Maya) was deliberated and its consequences and implications are suggested. To this end, first the technical features of polygon modeling and Retopology were reviewed. Second, based on it, the efficiency of animation character modeling work processes through step linking ZBrush and Maya suggested in this paper was analyzed. Third, based on the features drawn before, in order to prove the hypothesis on modeling optimization method suggested in this paper, the production process of character Dumvee from a short animation film, 'Cula & Mina' was analyzed as an example. Through this study, it was found that technical approach easiness and high level of completion could be realized through two software linked work processes. This study is considered to be a reference for optimizing production process of related industries or modeling-related classes by deliberating different modeling process linked systems.

Spray Modeling: An Augmented Reality Based Tangible 3D Modeling Interface (스프레이 모델링: 증강현실 기반의 실체적인 3차원 모델링 인터페이스 제안)

  • Jung, Hee-Kyoung;Nam, Tek-Jin
    • Archives of design research
    • /
    • v.18 no.4 s.62
    • /
    • pp.119-128
    • /
    • 2005
  • This paper presents an intuitive 3D modeling interlace based on a field study and prototype development. The process and tools of modeling were observed in workshops of professional design model making, day modeling, wood caning and glass crafting. The Spray Modeling interlace was developed from the observational analysis of the field study. It is a 3D modeling interface which combines particle spraying and day modeling in Virtual or Augmented Reality space. Virtual volume particles are sprayed on frames in Augmented Reality space as day modeling. It adopts a real air spay gun as a tangible interface device which provides coherent sound and air-force feedback. The prototype development and a user study showed that the interface supports new patterns of form development and expression. Control interfaces and requirements of auxiliary devices were found to be improved. This study examines the potential of the new interlace for designers working in 3D virtual and augmented reality. The new spraying interface is also expected to be used as an alternative interface in 3D computer workspace, games, education software and media art.

  • PDF

Object Modeling for Mapping from XML Document and Query to UML Class Diagram based on XML-GDM (XML-GDM을 기반으로 한 UML 클래스 다이어그램으로 사상을 위한 XML문서와 질의의 객체 모델링)

  • Park, Dae-Hyun;Kim, Yong-Sung
    • The KIPS Transactions:PartD
    • /
    • v.17D no.2
    • /
    • pp.129-146
    • /
    • 2010
  • Nowadays, XML has been favored by many companies internally and externally as a means of sharing and distributing data. there are many researches and systems for modeling and storing XML documents by an object-oriented method as for the method of saving and managing web-based multimedia document more easily. The representative tool for the object-oriented modeling of XML documents is UML (Unified Modeling Language). UML at the beginning was used as the integrated methodology for software development, but now it is used more frequently as the modeling language of various objects. Currently, UML supports various diagrams for object-oriented analysis and design like class diagram and is widely used as a tool of creating various database schema and object-oriented codes from them. This paper proposes an Efficinet Query Modelling of XML-GL using the UML class diagram and OCL for searching XML document which its application scope is widely extended due to the increased use of WWW and its flexible and open nature. In order to accomplish this, we propose the modeling rules and algorithm that map XML-GL. which has the modeling function for XML document and DTD and the graphical query function about that. In order to describe precisely about the constraint of model component, it is defined by OCL (Object Constraint Language). By using proposed technique creates a query for the XML document of holding various properties of object-oriented model by modeling the XML-GL query from XML document, XML DTD, and XML query while using the class diagram of UML. By converting, saving and managing XML document visually into the object-oriented graphic data model, user can prepare the base that can express the search and query on XML document intuitively and visually. As compared to existing XML-based query languages, it has various object-oriented characteristics and uses the UML notation that is widely used as object modeling tool. Hence, user can construct graphical and intuitive queries on XML-based web document without learning a new query language. By using the same modeling tool, UML class diagram on XML document content, query syntax and semantics, it allows consistently performing all the processes such as searching and saving XML document from/to object-oriented database.

Analysis of Elementary Students Modeling Using the Globe on the Cause of Seasonal Change (초등학생의 계절 변화 원인에 관한 지구본 활용 모델링 분석)

  • Suk, Yun Su;Yoon, Hye-Gyoung
    • Journal of Korean Elementary Science Education
    • /
    • v.41 no.4
    • /
    • pp.673-689
    • /
    • 2022
  • To understand seasonal changes it is necessary to understand the relationship between celestial bodies in a three-dimensional space, and to this end, modeling activities in which students directly construct, use, evaluate, and modify three-dimensional models are important. In this study, the process of elementary school students using globes and light bulbs to model Earth's motion in a three-dimensional space as a cause of seasonal changes was analyzed. Seventeen sixth graders participated in the modeling process. After exploring phenomena and concepts related to seasonal change, students constructed models using globes and bulbs and used them to explain seasonal changes. Video data recording students' modeling process, students' activity sheets, and transcripts of post-interview were used as research data, and data triangulation was conducted. The modeling level analysis framework was also developed based on previous studies. In particular, the framework was developed in detail in this study in consideration of the concept of Earth's motion as well as understanding model and implementing modeling. In the final analysis framework, the 3D modeling level was classified from level 1 to level 3, and student performance that may appear at each level was specified. As a result of the study, there were two main levels of modeling using globes for elementary school students to explain seasonal changes. The rotation and tilt of the axis of rotation and revolution of the earth were considered but the level at which empirical evidence was not used (level 2), the level at which empirical evidence was used to explain seasonal chages (level 3). However, even when students use empirical evidence, it did not lead to the construction of a scientific model. In this study, the cause was explored in relation to the characteristics of the tool used for modeling.

3D Architecture Modeling and Quantity Estimation using SketchUp (스케치업을 활용한 3D 건축모델링 및 물량산출)

  • Kim, Min Gyu;Um, Dae Yong
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
    • /
    • v.7 no.6
    • /
    • pp.701-708
    • /
    • 2017
  • The construction cost is estimated based on the drawings at the design stage and constructor will find efficient construction methods for budgeting and budgeting appropriate to the budget. Accurate quantity estimation and budgeting are critical to determining whether the project is profitable or not. However, since this process is mostly performed depending on manpower or 2D drawings, errors are likely to occur and The BIM(Build Information Modeling) program, which can be automated, is very expensive and difficult to apply in the field. In this study, 3D architectural modeling was performed using SketchUp which is a 3D modeling software and suggest a methodology for Quantity Estimation. As a result, 3D modeling was performed effectively using 2D drawings of buildings. Based on the modeling results, it was possible to calculate the difference of the quantity estimation by 2D drawing and 3D modeling. The research suggests that the 3D modeling using the SketchUp and the calculation of the quantity can prevent the error of the conventional 2D calculation method. If the applicability of the research method is verified through continuous research, it will contribute to increase the efficiency of architectural modeling and quantity Estimation work.

Exploring the Changes in Elementary Teachers' Modeling pPCK for Science Modeling Instructions Through Knowledge Exchange of the Refined Consensus Model (개선된 합의 모델(RCM)의 지식 교환을 통한 초등교사의 모델링 pPCK 변화 탐색)

  • Hyun-Ju Kim;Chae-Seong Lim;Ki-Young Lee
    • Journal of The Korean Association For Science Education
    • /
    • v.44 no.1
    • /
    • pp.105-117
    • /
    • 2024
  • The purpose of this study was to explore changes in elementary teachers' modeling pPCK (personal PCK) resulting from knowledge exchange within the realms of PCK described in the Refined Consensus Model (hereafter RCM). For this purpose, a professional learning community (hereafter PLC) was established for three elementary school teachers to facilitate knowledge exchange specifically focused on science modeling instructions. The study then analyzed the CoRe (content representations) written by the research participants twice to explore any changes in modeling pPCK (personal PCK). In addition, the discourse shared by the participants in the PLC and the data from the in-depth interviews were also analyzed using grounded theory research methods. The results of the study showed that there was no significant change in knowledge of the science curriculum in elementary teachers' modeling pPCK, but there were changes in orientations toward teaching science, knowledge of students' understanding in science, knowledge of instructional strategies and representations, and knowledge of assessment of science learning. Furthermore, the analysis of PLC discourse and in-depth interviews showed that modeling instructions reflection (ePCK; enacted PCK) and educational research-based modeling cPCK (collective PCK) influenced these changes in teachers' modeling pPCK. Accordingly, this study suggests recommendations for pedagogical approaches aimed at improving teachers' modeling PCK.

Negative Side Effects of Denormalization-Oriented Data Modeling in Enterprise-Wide Database Design (기업 전사 자료 설계에서 역정규화 중심 데이터 모델링의 부작용)

  • Rhee, Hae-Kyung
    • Journal of the Institute of Electronics Engineers of Korea CI
    • /
    • v.43 no.6 s.312
    • /
    • pp.17-25
    • /
    • 2006
  • As information systems to be computerized get significantly scaled up, data modeling issues apparently considered to be crucial once again as the early 1980's under the terms of data governance, data architecture or data quality. Unfortuately, merely resorting to heuristics-based field approaches with more or less no firm theoretical foundation of knowledge with regard to criteria of data design lead quite often to major failures in efficacy of data modeling. In this paper, we have compared normalization-critical data modeling approach, well-known as the Non-Stop Data Modeling methodology in the literature, to the Information Engineering in which in many occasions the notion of do-normalization is supported and even recommended as a mandatory part in its modeling nature. Quantitative analyses have revealed that NS methodology ostensibly outperforms IE methodology in terms of efficiency indices like adequacy of entity judgement, degree of existence of data circulation path that confirms the balancedness of data design and ratio of unnecessary data attribute replication.

SYSTEMS STUDIES AND MODELING OF ADVANCED LIFE SUPORT SYSTEM

  • Kang, S.;Ting, K.C.;Both, A.J.
    • Proceedings of the Korean Society for Agricultural Machinery Conference
    • /
    • 2000.11c
    • /
    • pp.623-631
    • /
    • 2000
  • Advanced Life Support Systems (ALSS) are being studied to support human life during long-duration space missions. ALSS can be categorized into four subsystems: Crew, Biomass Production, Food Processing and Nutrition, Waste Processing and Resource Recovery. The System Studies and Modeling (SSM) team of New Jersey-NASA Specialized Center of Research and Training (NJ-NSCORT) has facilitated and conducted analyses of ALSS to address systems level issues. The underlying concept of the SSM work is to enable the effective utilization of information to aid in planning, analysis, design, management, and operation of ALSS and their components. Analytical tools and computer models for ALSS analyses have been developed and implemented for value-added information processing. The results of analyses have been delivered through the Internet for effective communication within the advanced life support (ALS) community. Several modeling paradigms have been explored by developing tools for use in systems analysis. They include object-oriented approach for top-level models, procedural approach for process-level models, and application of commercially available modeling tools such as MATLAB$\^$(R)//Simulink$\^$(R)/. Every paradigm has its particular applicability for the purpose of modeling work. An overview is presented of the systems studies and modeling work conducted by the NJ-NSCORT SSM team in its efforts to provide systems analysis capabilities to the ALS community. The experience gained and the analytical tools developed from this work can be extended to solving problems encountered in general agriculture.

  • PDF