• 한국통계학회:학술대회논문집
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• 한국통계학회 2003년도 추계 학술발표회 논문집
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• pp.275-279
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• 2003

We obtain the asymptotic distributions of tests statistics for various types of seasonal cointegration based on GRR estimators of Ahn and Cho (2003). These tests are useful in testing for restrictions about cointegrating vectors after Chi-square tests for CCI and common PCIV in Ahn and Cho (2003) or tests for the known CCI and the known PCIVs have been performed.

• 대한약학회:학술대회논문집
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• 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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• pp.262.1-262.1
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• 2002

Uncoupling proteins (UCPs) are transmembrane proton transporters present in the mitochondria. In UCPs. UCP1 and UCP3 play an important role in adaptive thermogenesis by uncoupling mitochondrial oxidation of substrates from ATP synthesis. PPARg coactivator 1(PGC-1) regulates transcriptional activity of PPARg and other nuclear receptors and controls the expression of UCPs. (omitted)

• 대한건축학회논문집:계획계
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• 제35권5호
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• pp.61-72
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• 2019

The purpose of this study is to propose the clue of planning guideline for the elderly welfare center supporting the healthy life of the elderly through deriving the planning element of the elderly welfare center based on the Salutogenic Model(SM). The research method was proceeded with literature review. The meaning of Sense of Coherence(SOC) and Generalised Resistance Resources(GRR) which constitute Salutogenic Model is established. The correlation between SOC and GRR is analyzed. The conclusions of this study are as follows. First, EBD, BD, HD, UD, and BFD were studied as planning theories that could enhance the SOC of space. Second, based on the five planning theories, 43 planning elements needed for the elderly welfare center plan were derived. Third, as a result of classifying the plan elements based on the SOC, 'Manageability' is divided into 22 elements, 'Meaningfulness' is 11 and 'Comprehensibility' is 10 elements. Fourth, the details of the SOC items for each theory are as follows: BFD focuses on 'Manageability' with 'Manageability'(74%) and 'Comprehensibility'(26%), but 'Meaningfulness' does not exist. And UD regards 'Comprehensibility'(66%) as important, and 'Manageability' and 'Meaningfulness' as 17%. BD, on the other hand, has a high percentage of 'Meaningfulness'(70%), 'Comprehensibility'(21%) and 'Manageability'(9%). Next, the 'Manageability' of HD and EBD is 46%. And HD was 'Meaningfulness'(34%), 'Comprehensibility'(20%), and EBD was 'Meaningfulness'(30%) and 'Comprehensibility'(24%). The three items of SOC showed different distribution according to the spatial planning theory. As a result of the analysis, the spatial planning theory with the 'Comprehensibility' was related to Universal Design(UD), and the spatial planning theory with the 'Manageability' was related to Barrier-Free Design(BFD). In addition, the spatial planning theory of 'Meaningfulness' was related to Bio-philic Design(BD). Therefore, the plan of the elderly welfare center needs to approach the multidimensional design methodology to enhance the SOC(Sense of Coherence).

• 응용통계연구
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• 제21권5호
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• pp.783-789
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• 2008

We investigate the effects of the misspecification of cointegrating(CI) ranks at other frequencies on the inference of seasonal models at the frequency of interest; our study includes tests for CI ranks and estimation of CI vectors. Earlier studies focused mostly on a single frequency corresponding to one seasonal root at a time, ignoring possible cointegration at the remaining frequencies. We investigate the effects of the mis-specification, especially in finite samples, by adopting Gaussian reduced rank(GRR) estimation by Ahn and Reinsel (1994) that considers cointegration at all frequencies of seasonal unit roots simultaneously. It is observed that the identification of the seasonal CI rank at the frequency of interest is sensitive to the mis-prespecification of the CI ranks at other frequencies, mainly when the CI ranks at the remaining frequencies are underspecified.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2014년도 춘계학술발표대회
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• pp.729-731
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• 2014

플래시 메모리에서 B-tree 데이터를 저장하고 관리[4, 5]할 때 빈번한 수정과 구조변동으로 인해 발생하는 블록에 대한 쓰기와 지우기 연산의 비용으로 인해 플래시 메모리의 사용 수명을 단축시키는 문제를 해결하기 위해 현재 많이 쓰이고 있는 로그 저장방식을 검토하고 이를 효율적으로 B-tree에 저장하고 관리하도록 동적 블록 그룹핑과 순환 순서 기반의 저장 알고리즘으로 제안 된 GRR (Ground Round Robin) 기법을 보조 로그 블록을 할당하여 머지횟수를 줄일 수 있는 알고리즘을 제안한다.

• Spatial Information Research
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• 제16권3호
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• pp.373-383
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• 2008

지표면에 대한 정보를 취득하는 기법 중 지금까지 주로 사용되어온 기법은 항공사진 및 위성영상과 같이 평면적인 정보 수집에 중점을 두고 있는 반면, 본 논문에서 다루는 LiDAR(Light Detection And Ranging)는 레이저 측량기술을 이용하여 지표면에 대한 고해상도의 비정규분포 Point 형태의 3차원 정보의 획득이 가능하다. GPS(Global Positioning System) 수신기와 INS(Inertial Navigation System)의 결합을 통해 좌표 값을 제공하게 된다. 이러한 LiDAR의 3차원 Point 정보와 좌표 값을 활용하여 보다 정밀한 3차원 모델링 수행이 가능하다. 본 연구에서는 LiDAR의 반사강도와 기하/지형 자료를 이용하여 도시지역을 대상으로 정밀한 3차원 공간정보자료를 취득하고, 그 자료를 분석하여 도시지역을 높이와 밀도를 기반으로 하여 3차원으로 분류하였다. LiDAR를 통해 획득된 원시자료로부터 지표면에서 반사되는 Point Data의 개수를 지면과 비지면 요소의 비율로 추정하여 지형과 공간적 특성을 파악하고 이에 따라 3차원 토지피복분류도를 작성하였다. 신호의 강약을 구분하는 기준은 통계적 방법(Jenk's Natural Break)을 통해 추정된 값을 사용하였으며, 지표면 반사비율에 따라 세부지역으로 구분하여 크게 고밀도 저밀도 식생지역과 비식생지역으로 구분하였다.