• The Korean Journal of Ecology
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• 제14권4호
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• pp.415-433
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• 1991

Seasonal variation in size and number of floral structures was examined in two massachusetts populations of chelidonium major, a self-compatible herb. All floral charcters except for anther number per flower declind significantly during a 3 week period. However, temporal patterns were not identical among characters or between popolations. The result indicate that floral characters varied in conjunction with flower diameter,but that the pattern of changes in floral characters in response to environments may not be easy to predict. Principal components analysis was conducted to environments may not be easy to predict. principal compenents analysis was conducted tl identify the functional relationship among floral male function, and female function, respectively, perhaps reflecting the functional distinction of floral characters. Based on this pattern, the relative allocation to sexual structures within flowers was examined: male allocation was relatively greater than female allocation eary or in the middle of flowering season, depending upon populations. Temporalvariation in relative allocation within flowers was not independent of seed tield components:; different combinations of the size and number of floral characters were correlated with different seed yield components, for example, either seed size or number per fruit, during a season. in particular, allocations to attractive and male structures were highly correlated with mean seed weight only earlier in the season. These result provide some evidence that flowering phenolgy is an important comportant to be considered in the study of sexual allocation.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 1998년도 하계종합학술대회논문집
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• pp.803-806
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• 1998

This thesis proposes a new heuristic algorithm of integrated allocation and binding for high level synthesis. The proposed algorithm simultaneously allocates binds functional units, interconnections and registers by considering interdependency between operations and storage elements in each control step, in order to share registers and interconnections connected to functional units, as much as possible. This thesis shows the effectiveness of the algorithm by comparing the results of out experiments with those of existing system.

• 정보학연구
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• 제3권1호
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• pp.117-124
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• 2000

본 논문은 설계 자동화를 위한 저전력 하드웨어 할당 알고리듬을 제안한다. 제안한 알고리듬은 스케줄링의 결과를 입력으로 받아들이고, 각 기능 연산자에 연결된 레지스터 및 연결 구조가 최대한 공유하도록 제어스텝마다 연산과 기억 소자의 상호 연결 관계를 고려하여 기능 연산자, 연결 구조 및 레지스터 할당한다. 또한 자원의 수를 최대로 줄임으로써 할당 과정동안 저전력의 요소인 캐패시턴스를 동시에 줄인다. 제안된 알고리듬은 비교 실험을 통하여 기존의 저전력을 고려하지 않은 방식들과 비교함으로서 본 논문의 효율성 을 보인다.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제13권3호
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• pp.35-46
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• 2007

Hospital architectures, as a function-oriented architecture, have a great influences on the functional program and spacial allocation for a great number of rooms and departments. Particularly, spacial allocating analysis is depends on various external forces, such as hospital-size, relationships for the others, ownerships, operating methods, long-term masterplan as well as researchers' methods. Furthermore, as there is focusing on architectural design basis rather than architectural planning In recent Korean architectural field, adequate analysing methodology of spacial allocation for the design process is needed. This paper analyzes architectural drawings for 8 Korean hospitals which constructed in recent 20 years in aspects of the spacial allocation for inner spaces and then, presents areal composition and pattern of spacial allocation for researching hospitals.

• 한국철도학회논문집
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• 제10권3호
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• pp.319-326
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• 2007

During the design phase of a system, which requires high reliability and safety such as aircraft, high speed train and nuclear power plant, reliability engineer must set up the target system reliability. To meet a reliability goal for the system, reliability allocation should be done gradually from the system to its element. For this end, first of all, we need to construct functional block diagram based on the design output and PWBS(Project Work Breakdown System). Another important input data for reliability allocation is the relationship between the cost and the reliability. In this study we investigate various reliability allocation models, which can be applicable to aircraft, vehicle, and power plant, and etc. And we suggest a proper reliability allocation model which can be effectively applicable to KTX-II high speed train to achieve the target system reliability.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 춘계학술대회 논문집
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• pp.45-57
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• 2007

During the design phase of a system, which requires high reliability and safety such as aircraft, high speed train and nuclear power plant, reliability engineer must set up the target system reliability. To meet a reliability goal for the system, reliability allocation should be done gradually from the system to its element. For this end, first of all, we need to construct functional block diagram based on the design output and PWBS(Project Work Breakdown System). Another important input data for reliability allocation is the relationship between the cost and the reliability. In this study we investigate various reliability allocation models, which can be applicable to aircraft, vehicle, and power plant, and etc. And we suggest a proper reliability allocation model which can be effectively applicable to KTX-II high speed train to achieve the target system reliability.

• 전기전자학회논문지
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• 제7권2호
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• pp.166-171
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• 2003

본 논문은 상위 레벨 합성에서의 레지스터와 자원 할당 과정의 스위치 동작 최소화를 통한 저 전력 데이터 패스 할당 알고리즘을 제안한다. 제안하는 알고리즘은 스케줄링된 CDFG를 입력으로 할당 과정에서 전력 최소화를 수행한다. 알고리즘은 레지스터 할당과 자원 할당 과정을 나누어 수행한다. 레지스터 할당 알고리즘은 기능 장치내의 불필요한 스위칭 동작을 제거하고 멀티플렉서의 수를 최소화한다. 자원 할당 과정은 스위칭 동작을 최소화할 수 있는 연산자의 순서를 선택한다. 본 논문에서 제안하는 알고리즘과 genesis-lp 상위 레벨 합성시스템을 벤치마크를 이용한 비교 실험결과 평균 15.3%의 전력 감소효과가 있다.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제16권4호
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• pp.15-24
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• 2010

The purpose of this study is to provide the basic guideline of the archite-ctural planning and design of the women's hospital for optimizing the area compostion and spatial allcoation. The method of this study is to investigate and analyze the functional spatial composition based on the area composition and spatial allocation of the 4 departments space in women's hospital through a analysis of 9 cases study. Data collecting skills such as drawing documents analysis, field survey and observation were used to examine of the present facility condition. Hence this research is to grasp the present condition of department of the women's hospital, to inquire the area composition and spatial allocation. Finally, The derived important factors are expected to use as the basic data at the time of planning for the space programing of design women's hospital.

• 환경위생공학
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• 제18권3호통권49호
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• pp.11-20
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• 2003

There are two ways of reducing air pollution. One is the approach of the pollutant source control and the other one is the traffic demand decreasing approach. This study is focusing on the approach of land use planning and optimal location of urban facilities because those are the basic cause to generate transportation demands. So, the purpose of this study would be to analyze the changes of NOx and CO distribution on environmental air by functional hierarchy of urban roads and to make evaluation model of 'Transportation-Land Use -Air Pollution'. It will contribute to improve the air pollution level at same actual traffic generation according to different location.

• 한국통신학회논문지
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• 제29권2B호
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• pp.240-249
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• 2004

이동통신망 환경에서의 효과적인 IP 기반 서비스 적용을 위해서는 IP 관련 기술들의 이동통신망으로의 적용 및 이동단말들의 글로벌 IP 주소 소유여부가 중요하다. 현재 3GPP에서 제시하는 IPv6 주소할당 메커니즘은 이동단말과 위치상으로 멀리 떨어진 GGSN에 의해 일괄적으로 이루어지며 이것은 주소할당에 있어 이동단말에게는 시간지연의문제와 코어 망에서의 트래픽 증가문제를 발생시킨다. 본 논문에서는 현재의 IPv6 주소할당 메커니즘을 개선한 방식으로 RAN에 위치해 있는Node B가 주소할당을 수행하는 새로운 IPv6 주소할당 메커니즘을 제안한다. 제안한 IPv6 주소할당 메커니즘은 기존의 주소할당 메커니즘보다 짧은 시간 내에 이동단말에게 IPv6 주소를 할당하며 현재의 주소할당 메커니즘과 공존하여 이동통신망의 신뢰도를 높인다. 그리고 Node B에 몇 가지 기능이 추가되어지는 것을 제외하고는 현재 이동통신망의 구조를 변화시키지 않고 적용되어질 수 있다.