• Title/Summary/Keyword: Link Composition

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A Study on the Characteristics of Paul Rudolph's Florida house (미국 플로리다 지역의 폴 루돌프 주택 특성에 관한 연구)

  • Choi, Sung-woo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.6
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    • pp.360-371
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    • 2016
  • Paul Rudolph's early work in Florida after World War II is a significant example of the regional transformation of typical Modern Architecture through the spatial composition based on the diversity and use of local material and construction methods. Paul Rudolph's concept of a Florida House design is the expression of regional material, construction, and structural system through the spatial extension & connection based on periodical, regional characteristics. The characteristics of the Florida works is the spatial extension & connection design based on the wood structural framework through the various design factors, such as a screen roof, open roof, and internal patio as the spatial extension and link method. Paul Rudolf designed the house using local materials, such as cypress wood and lime block produced near the Florida Area and provided details & technology considering the Florida climate and construction environment. Through studies of Paul Rudolph's Florida works, the Florida Houses can be a prototype of localization, and can be presented as the spatial & technical transformation of design by the historical, cultural, regional background.

Characteristic of the Class Library for Embedded Java System (내장형 자바 시스템을 위한 클래스 라이브러리의 특성)

  • 양희재
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.7 no.4
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    • pp.788-797
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    • 2003
  • Class library is one of the most crucial element of Java runtime environment in addition to Java virtual machine. In particular, embedded Java system depends heavily on the class library due to having a low bandwidth communication link and a small amount of memory which are a common restriction of embedded system. It is therefore quite necessary to find the characteristic of the class library for embedded Java system to build an efficient Java runtime environment. In this paper we have analyzed the characteristic of the class library for embedded system. The analysis includes sorts of classes in the library, typical size of the file which contains the class, and the composition of constant pool which is a major part of the file. We also have found typical number of field and method a class contains, the sizes of stack and local variable array each method requires, and the length of bytecode in the method. The result of this study can be used to estimate the startup time for class loading and the size of memory to create an instance of class which are a mandatory information to design an efficient embedded Java virtual machine.

A Study on Spatial Aggregation Method for Path Travel Time Estimation using Hi-Pass DSRC System (하이패스 DSRC 기반의 경로통행시간 산정을 위한 공간적 집계방안 산정에 관한 연구)

  • Lee, Hwanpil;Shim, Sangwoo;Choi, Yuntaek;Kim, Dongin
    • International Journal of Highway Engineering
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    • v.16 no.3
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    • pp.119-129
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    • 2014
  • PURPOSES : This investigational survey is to observe a proper spatial aggregation method for path travel time estimation using the hi-pass DSRC system. METHODS : The links which connect the nodes of section detectors location are used for path travel time estimation traditionally. It makes some problem such as increasing accumulation errors and processing times. In this background, the new links composition methods for spatial aggregation are considered by using some types of nodes as IC, JC, RSE combination. Path travel times estimated by new aggregation methods are compared with PBM travel times by MAE, MAPE and statistical hypothesis tests. RESULTS : The results of minimum sample size and missing rate for 5 minutes aggregation interval are satisfied except for JC link path travel time in Seoul TG~Kuemho JC. Thus, it was additionally observed for minimum sample size satisfaction. In 15, 30 minutes and 1 hour aggregation intervals, all conditions are satisfied by the minimum sample size criteria. For accuracy test and statistical hypothesis test, it has been proved that RSE, Conzone, IC, JC links have equivalent errors and statistical characteristics. CONCLUSIONS : There are some errors between the PBM and the LBM methods that come from dropping vehicles by rest areas. Consequently, this survey result means each of links compositions are available for the estimation of path travel time when PBM vehicles are missed.

Training Sample of Artificial Neural Networks for Predicting Signalized Intersection Queue Length (신호교차로 대기행렬 예측을 위한 인공신경망의 학습자료 구성분석)

  • 한종학;김성호;최병국
    • Journal of Korean Society of Transportation
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    • v.18 no.4
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    • pp.75-85
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    • 2000
  • The Purpose of this study is to analyze wether the composition of training sample have a relation with the Predictive ability and the learning results of ANNs(Artificial Neural Networks) fur predicting one cycle ahead of the queue length(veh.) in a signalized intersection. In this study, ANNs\` training sample is classified into the assumption of two cases. The first is to utilize time-series(Per cycle) data of queue length which would be detected by one detector (loop or video) The second is to use time-space correlated data(such as: a upstream feed-in flow, a link travel time, a approach maximum stationary queue length, a departure volume) which would be detected by a integrative vehicle detection systems (loop detector, video detector, RFIDs) which would be installed between the upstream node(intersection) and downstream node. The major findings from this paper is In Daechi Intersection(GangNamGu, Seoul), in the case of ANNs\` training sample constructed by time-space correlated data between the upstream node(intersection) and downstream node, the pattern recognition ability of an interrupted traffic flow is better.

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A Study of Structure and Thermal Properties of K2O·CaO·P2O5 Glasses (K2O·CaO·P2O5계 유리의 열적특성과 구조분석)

  • Yoon, Young-Jin;Yoon, Tae-Min;Lee, Yong-Soo;Kang, Won-Ho
    • Journal of the Korean Ceramic Society
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    • v.39 no.2
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    • pp.194-198
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    • 2002
  • Various composition of $K_2O{\cdot}CaO{\cdot}P_2O_5$ glasses were studied by melting process to identify glass forming region. Thermal properties were observed by DSC and TG-DTA, structural properties were investigated by FT-IR and Raman Spectroscopy. The glass transition temperature (Tg) and softening temperature (Ts) were decreased with increasing $K_2O\;and\;P_2O_5$ contents. The basic structural unit of phosphate glasses is the $PO_2\;and\;PO_4^{3-}$ groups to make a cross-link and P-O-P group to form skeleton structure. As CaO content was increased, the P-O-P field strength in these glass was increased and intensity of $PO_2\;and\;PO_4^{3-}$ stretch was decreased.

Modified LEACH Protocol improving the Stabilization of Topology in Metal Obstacle Environment (금속 장애물 환경에서 토폴로지 안정성을 개선한 변형 LEACH 프로토콜)

  • Yi, Ki-One;Lee, Jae-Kee;Kwark, Gwang-Hoon
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.34 no.12B
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    • pp.1349-1358
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    • 2009
  • Because of the limitation of supporting power, the current WSN(Wireless Sensor Network) Technologies whose one of the core attributes is low power consumption are the best solution for shipping container networking in stack environment such as on vessel. So it is effective to use the Wireless Sensor Network Technology. In this case, many nodes join in the network through a sink node because there are difficulties to get big money and efforts to set up a lot of sink node. It needs clustering-based proactive protocol to manage many nodes. But it shows low reliability because they have effect on radio frequency in metal obstacle environments(interference, distortion, reflection, and etc) like the intelligent container. In this paper, we proposed an improved Modified LEACH Protocol for stableness radio frequency environment. In the proposed protocol, we tried to join the network and derived stable topology composition after the measuring of link quality. Finally, we verified that the proposed protocol is composing more stable topology than previously protocol in metal obstacle environment.

A Linkage between Educational Autonomy Innovation and School Space Innovation - Focusing on Sejong Special Self-Governing City - (교육자치혁신과 학교공간혁신 연계 방안 - 세종특별자치시를 중심으로 -)

  • Lee, Yong-Hwan;Koo, Joong-Phil;Kim, Kwan-Young;Park, Joung-Lan
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.18 no.4
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    • pp.33-43
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    • 2019
  • This study was to research and analyze the concept of school space innovation to aim at the importance of user educational value. The purpose of this study is to analyze the needs of students, teachers, or consumers connected with the educational autonomous innovative curriculum and various school-government educational activities and suggest the ways to link school space innovation to the best possible reflection for demander-centered or the demander needs To this end, the basic concepts of the autonomous education and school space innovation were reviewed, and the literature survey on the revised education curriculum in 2015 and educational autonomous innovation curriculum at the national level, educational goals and basic value-added awareness of the curriculum. The purpose was to research the perception of students and teachers through the survey and analysis of basic values of education, the functions of school education, the direction of school environment and space spatial composition, and school space.

Verification of Dose Evaluation of Human Phantom using Geant4 Code (Geant4 코드를 사용한 인체팬텀 선량평가 검증)

  • Jang, Eun-Sung;Choi, Ji-Hoon
    • Journal of the Korean Society of Radiology
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    • v.14 no.5
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    • pp.529-535
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    • 2020
  • Geant4 is compatible with the Windows operating system in C++ language use, enabling interface functions that link DICOM or software. It was simulated to address the basic structure of the simulation using Geant4/Gate code and to specifically verify the density composition and lung cancer process in the human phantom. It was visualized using the Gate Graphic System, i.e. openGL, Ray Tracer: Ray Tracing by Geant4 Tracing, and using Geant4/Gate code, lung cancer is modeled in the human phantom area in 3D, 4D to verify the simulation progress. Therefore, as a large number of new functions are added to the Gate Code, it is easy to implement accurate human structure and moving organs.

An Analysis of the Characteristics of the Transition Trand of the Multi-family Housing Theory by Planning Community Units - Focused on the new town planning in Korea - (생활권 개념의 변화에 따른 주거지 계획의 시기별 특성 변화 - 국내 신도시 및 신시가지 계획을 중심으로 -)

  • Yi, Jong-Hwa;Koo, Ja-Hoon
    • Journal of the Korean housing association
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    • v.20 no.4
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    • pp.79-88
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    • 2009
  • A planned access method on constantly-changing-community unit plan changes and develops based on the periodical situation and also plan theory. In this research, it is to present the link between the theory of complex city change and the plan factor of it, and to show how Korean residential complex plan has changed as time passed and how new concept of city plan came up and by applying new methods how can this affect our real world and the past plan. In the phase of analysis, it analyzed the flow of 'community unit plan' and its theory and investigated the factor of compositional space and built a analysis frame. The factors of community unit plan are space structure, size and shape of block, population, distribution of facilities and movement system. It chose the place that can represent the flow of community unit plan trand and that indicates the obvious development leading to Jamsil (1975), Gwa Chun (1980), Mok Dong (1983), Sang Ge (1985), Ilsan (1989), Dong tan (2001) and Eun Jung (2003) total of 7 places. And to compare a similar size of the city, it selected a small community unit. Based on the result of theoretical study and prior research, it can be said that the space composition style has change from a whole complete complex area to a linked-cross over community unit and the access of urban level was on set. Also, a pedestrian walking area was secured and the dense of building structure and pleasant environment wanting need was in balance. For facility plans, the usage of facility and functional change brought change of type, size and disposition. The walking area for pedestrian became a huge matter. Therefore, market, education, public facilities and green system collaborated to co-build a whole community unit and activated the walking environment. Also, public transportation, environment friendly city organization was built.

A Study on the Spatial Characteristics of the Outpatient Department in the Women′s Hospital - Focused on the Outpatient - (여성 전문병원 외래부의 공간특성에 관한 연구 - 환자관점을 중심으로 -)

  • 주진형
    • Korean Institute of Interior Design Journal
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    • v.13 no.5
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    • pp.133-142
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    • 2004
  • Recently, the Korean medical system changed with diversification & specialization and the field of medical service is also specialized in these days. And healing environment is proposed as a general concept in the hospital architecture. There is a trend that a establishment of women's hospital is increasing as specialized type. In difference from general hospital, they are providing specialized and integrated services in response to the women's disease and demand. Particularly, Outpatient department space in women's hospital has been changed in terms of area, shape and program. However, there used to be not enough research efforts of responding these changes. This study includes the Outpatient department of s women's hospital in the form of small and medium sized building over a certain level in Korea. And the methods of the study adopted the theoric examination based concept and features of women's hospital, the abstraction of distinctions in the Outpatient department through the analysis of the drawing, and the analysis of distinctions in the Outpatient department of women's hospital with the structural space classified and the analysis of space relation. Therefore, the purpose of this is to study investigates and analyzes the spatial characteristics of the Outpatient department space in women's hospital through a analysis of case study. To conclude, the space composition can be classified into the entry space, the clinic space for patients, the support space of patients' check-up, the reception and waiting space, the rest and convenience space, and the link space in the Outpatient department of women's hospital. The level space can account for the waiting space type, the clinic office type, the type based on the relation between the waiting room and the clinic office with its features. As a result, the results will be applied for the planning & design for the future women's hospital.