• Title/Summary/Keyword: Architecture Patterns

Search Result 823, Processing Time 0.022 seconds

A Multi-Agent Message Transfer Architecture based on the Messaging Middleware ZeroMQ (메시지 지향 미들웨어 ZeroMQ 기반의 다중 에이전트 메시지 전송 구조)

  • Chang, Hai Jin
    • KIISE Transactions on Computing Practices
    • /
    • v.21 no.4
    • /
    • pp.290-298
    • /
    • 2015
  • This paper suggests a multi-agent message transport architecture based on the message-oriented middleware ZeroMQ. Compared with the other middlewares such as CORBA, Ice, and Thrift, ZeroMQ receives a good score in the evaluation of performance, QoS (Quality of Service), patterns, user friendliness, and resources. The suggested message transfer architecture borrowed many basic concepts like agent platform, AMS (Agent Management System), and MTS (Message Transfer System) from FIPA (Foundation for Intelligent Physical Agents) standard multi-agent specifications, and the architecture inherited the strength of the architecture from the multi-agent framework SMAF (Smart Multi-Agent Framework). The architecture suggested in this paper is a novel peer-to-peer architecture which is not known to the ZeroMQ community. In the suggested architecture, every MTS agent uses only one ZeroMQ router socket to support peer-to-peer communication among MTS agents. The suggested architecture can support closely collaborating software areas such as intelligent robots as well as the traditional application areas of multi-agent architecture. The suggested architecture has interoperability and scalability with the ZeroMQ devices and patterns.

Defining the Patterns and Factors of Urban Crime in Korean Cities Based on the Analysis of Social Statistical Data

  • Chang, Dong-Kuk;Shim, Jae-Choon;Park, Joo-Hee
    • Architectural research
    • /
    • v.14 no.2
    • /
    • pp.45-56
    • /
    • 2012
  • The high rate of urban crime is a main issue that needs to be dealt with in this high-tech society. With the rapid increase of urban crime, research has mainly focused on topics either on a global or a local scale, such as cities or communities and houses or buildings, without reliable observational data. This study makes the best use of the nationwide surveys carried out by Korean government agencies for the analysis of urban crime patterns and factors in major Korean cities. The aims of this research are threefold: understanding the relationship between urban crime patterns and socio-economic differences in cities, determining the effect of residence types on the urban crime patterns; and uncovering potential influential factors of a crime victim's individual characteristics. The statistical methods used for the analysis of social statistical data are as follows: simple regression, logistic regression, one-way ANOVA and post-hoc test. This research found that the patterns of urban crime rate in cities have a certain tendency toward the cities' socio-economic and geographical differences. The residence type is an influential factor showing a close relation to the crime rate. Personal issues, such as the types of occupation, education, marriage, etc., are directly relevant to victims of crime.

A Study on Experiential Space Consumption Patterns in Urban Parks through Blog Text Analysis - Focusing on Ttukseom Hangang Park - (블로그 텍스트 분석을 통해 살펴본 도시공원의 경험적 공간 소비 양상 - 뚝섬한강공원을 중심으로 -)

  • Kim, Shinsung
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.51 no.2
    • /
    • pp.68-80
    • /
    • 2023
  • With the recent changes in society and the introduction of new technologies, the usage patterns of parks have become diverse, leading to increased complexity in park management. As a result, there is a growing demand for flexible and diverse park management that can adapt to these new requirements. However, there is inadequate discussion on these new demands and whether urban park management policies can respond. Therefore, empirical research on how park usage patterns are evolving is critical. To address this, blog data, in which individuals share their experiences, was used to examine the spatial consumption patterns through semantic network and topic analysis. This study also explored whether these spatial consumption patterns exhibit experiential consumption characteristics according to the experience economy theory. The results showed that consumption behaviors, such as renting picnic sets and having food and drinks delivered, were prominent and that emotional experiences were pursued. Furthermore, these findings were consistent with the experiential consumption characteristics of the experience economy theory. This suggests that park planning and maintenance methods need to become more flexible and diverse in response to the changing demands for park usage.

Tensile strain-hardening behaviors and crack patterns of slag-based fiber-reinforced composites

  • Kwon, Seung-Jun;Choi, Jeong-Il;Nguyen, Huy Hoang;Lee, Bang Yeon
    • Computers and Concrete
    • /
    • v.21 no.3
    • /
    • pp.231-237
    • /
    • 2018
  • A strain-hardening highly ductile composite based on an alkali-activated slag binder and synthetic fibers is a promising construction material due to its excellent tensile behavior and owing to the ecofriendly characteristics of its binder. This study investigated the effect of different types of synthetic fibers and water-to-binder ratios on the compressive strength and tensile behavior of slag-based cementless composites. Alkali-activated slag was used as a binder and water-to-binder ratios of 0.35, 0.45, and 0.55 were considered. Three types of fibers, polypropylene fiber, polyethylene (PE) fiber, and polyparaphenylene-benzobisethiazole (PBO) fiber, were used as reinforcing fibers, and compression and uniaxial tension tests were performed. The test results showed that the PE fiber series composites exhibited superior tensile behavior in terms of the tensile strain capacity and crack patterns while PBO fiber series composites had high tensile strength levels and tight crack widths and spacing distances.

A Basic Study on the History of Healthcare Architecture Planning in Korea - Focused on the Research of Healthcare Architecture - (한국의 병원건축계획사에 관한 기초적 연구 -병원건축연구를 중심으로-)

  • Yu, Young-Min
    • Journal of The Korea Institute of Healthcare Architecture
    • /
    • v.16 no.4
    • /
    • pp.41-48
    • /
    • 2010
  • Since 1970s' many hospitals have been built due to the economic growth and change of social policy in Korea. But, we had no sufficient data and design guidelines of planning and designing to get good design solutions. From the first paper on the healthcare architecture issued in 1974, many researches have been performed. Researches could be one of the efforts to solve the problems and satisfy the needs of those periods. Researches could reflect the characteristics of healthcare architecture of those periods. So in this paper 267 papers issued between 1974-2009 were analyzed to get the characteristics patterns of research periodically. This paper aims to provide a basic data for studying of history of healthcare architecture in Korea.

Classification of Li(黎族) traditional brocade patterns of Chinese textile and its application for modern fashion product design

  • Zhang, Shunai;Wu, Simin
    • The Research Journal of the Costume Culture
    • /
    • v.20 no.5
    • /
    • pp.775-781
    • /
    • 2012
  • There are various kinds of patterns on Li brocade textile of Hainan province in China. Those patterns are rich and colorful. Li (黎族) traditional brocade is an ancient exquisite craftsmanship and a world cultural heritage. This study analyzed and categorized Li brocade pattern of traditional Chinese textiles. Li (黎族) traditional brocade is an ancient exquisite craftsmanship. Based on the research of classifications of Li brocade patterns, expound the application of women's costume. The patterns of Li brocade textile of Hainan province analyzed through three levels: design transforming, meaning prolongation, and refining spirit. The patterns were explored the feasibility way to inherit the patterns of Li brocade for the modern fashion product design. The results showed that Li brocade textile pattern of Hainan province were images sourced from local environment and geographical terrain. They contained the nation's history memory, religion, hope for life of the Li nationality. Those patterns can be categorized as human figure pattern, animal pattern, geometric pattern, appliance or architecture pattern, and Chinese character pattern.

Pattern Classification and Characteristics Concerning Landscape on Mountains and Hills by Using a Landscape Picture -The Case of Seoul City- (진경산수화 분석을 통한 산지 구릉 경관 유형의 분류 및 해석 -서울시를 중심으로-)

  • 강명수
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.29 no.4
    • /
    • pp.12-23
    • /
    • 2001
  • The research focused on the landscape of mountains and hills drawn in a landscape picture. The purpose of the research is to classify patterns of landscape drawning in landscape pictures and to clarify the characteristics of the pattern by a quantitative index. We selected 21 landscape pictures to understand the Landscape Setting Here(LSH) and Landscape Setting These(LST). We investigated size quantitative indices using 1 landscape picture. The index is a follow: altitude, Visual Distance, Angles, Angle of Appearance Size, Inclination, and Angle of Incidence. The following results were obtained by using this data. 1) It has been understood that we offer an important city view because the LSH of this research can establish understanding of the city structure. 2) We dividing 3 patterns by the LST space drawn in the landscape picture. 3 patterns are Ferry point, Beauty point, an Signal-fire point. 3) We clarified the landscape characteristics of each pattern and the characteristics between patterns by using the index according to this pattern. 4) We understood the problem concerning the Seoul city landscape examining the pattern of this research with the ordinance of Seoul city. It is necessary to standardized a system of pattern classification utilized in landscape pictures to establish a universally interpreted detailed quantitative index, which can be applied to research.

  • PDF

A Diachronic Analysis on the Shapes of Pond at the Private Residence in the Choson Dynasty (조선시대 민간정원 지당형태의 통시적 분석)

  • 권차경;강영조
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.28 no.3
    • /
    • pp.61-71
    • /
    • 2000
  • The purpose of this article is to investigate the forms and styles of pond at private housing in terms of diachronically influencing characteristics in the Choson Dynasty. From various literatures and records, we have selected 73 cases of pond. We have analyzed the types of pond based on square type, squared type with islets, and modified types and found the following results: 1) Chronically, shapes of pond had been chanced from the three prototypes into their features of deducting side or edge, adding a triangular or trapezoid shape, and installing more islets, and replaced their figures with gradually progressive from side having a straight lined shape to a curved one. 2) As for characteristics of arranging ponds, we found three patterns of arrangement - the juxtaposition with a similar shape of pond, juxtaposition with a different shape of pond, and the juxtaposition with a pond having different topological level in the light of the relation with a stream and a pond. We can conclude the two changed patterns of ponds at private residence in Choson Dynasty that the one had been transformed shapes of pond with sides of pond, and the others had been transformed juxtaposition with either a stream or a natural stream. From this research we can find an important implications in understanding patterns and types of garden in the Choson Dynasty from exploratory approach and in the future the relationship between topographical characteristics of private residence and Confucian ideas, and shapes of pond is needed to be examined in explanatory manner.

  • PDF

Shear mechanism and bearing capacity calculation on steel reinforced concrete special-shaped columns

  • Xue, J.Y.;Chen, Z.P.;Zhao, H.T.;Gao, L.;Liu, Z.Q.
    • Steel and Composite Structures
    • /
    • v.13 no.5
    • /
    • pp.473-487
    • /
    • 2012
  • An experimental study was performed to investigate the seismic performance of steel reinforced concrete (SRC) special-shaped columns. For this purpose, 17 steel reinforced concrete special-shaped column specimens under low-cyclic reversed load were tested, load process and failure patterns of the specimens with different steel reinforcement were observed. The test results showed that the failure patterns of these columns include shear-diagonal compression failure, shear-bond failure, shear-flexure failure and flexural failure. The failure mechanisms and characteristics of SRC special-shaped columns were also analyzed. For different SRC special-shaped columns, based on the failure characteristics and mechanism observed from the test, formulas for calculating ultimate shear capacity in shear-diagonal compression failure and shear-bond failure under horizontal axis and oblique load were derived. The calculated results were compared with the test results. Both the theoretical analysis and the experimental results showed that, the shear capacity of T, L shaped columns under oblique load are larger than that under horizontal axis load, whereas the shear capacity of +-shaped columns under oblique load are less than that under horizontal axis load.

Numerical Study for Experiment on Wave Pattern of Internal Wave and Surface Wave in Stratified Fluid (성층화된 유체 내에서 내부파와 표면파의 파형 변화 실험을 위한 수치적 연구)

  • Lee, Ju-Han;Kim, Kwan-Woo;Paik, Kwang-Jun;Koo, Won-Cheol;Kim, Yeong-Gyu
    • Journal of Ocean Engineering and Technology
    • /
    • v.33 no.3
    • /
    • pp.236-244
    • /
    • 2019
  • Internal waves occur at the interface between two layers caused by a seawater density difference. The internal waves generated by a body moving in a two-layer fluid are also related to the generation of surface waves because of their interaction. In these complex flow phenomena, the experimental measurements and experimental set-up for the wave patterns of the internal waves and surface waves are very difficult to perform in a laboratory. Therefore, studies have mainly been carried out using numerical analysis. However, model tests are needed to evaluate the accuracy of numerical models. In this study, the various experimental conditions were evaluated using CFD simulations before experiments to measure the wave patterns of the internal waves and surface waves in a stratified two-layer fluid. The numerical simulation conditions included variations in the densities of the fluids, depth of the two-layer fluid, and moving speed of the underwater body.