• 제목/요약/키워드: DMR

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FPGA 2 차원 배열을 사용한 디지털 회로에서 오류 검출의 방법 (The methods of error detection at Digital circuit using the FPGA 2-dimensional array)

  • 김석환;허창우
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2012년도 춘계학술대회
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    • pp.202-206
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    • 2012
  • 본 논문에서는 세포가 지니는 자가 복구 기능을 모사한 디지털 시스템 설계에서의 설계 방향에 대해 연구한다. 세포의 본래 구조인 3차원 배열이 아닌 FPGA를 이용하여 Cell들을 2차원 구조로 설계하고 효율적인 오류검출을 위한 블록배열 방법에 대해 알아보았다. 일정한 규칙성을 지닌 방법으로 설계를 하므로 전체 디지털 회로를 세부적으로 나누어 배열 시 쉽고 빠르게 검출할 수 있다.

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FPGA 2차원 배열을 사용한 디지털 회로에서 오류 검출의 방법 (The methods of error detection at Digital circuit using the FPGA 2-dimensional array)

  • 김석환;허창우
    • 한국정보통신학회논문지
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    • 제16권6호
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    • pp.1306-1311
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    • 2012
  • 본 논문에서는 세포가 지니는 자가 복구 기능을 모사한 디지털 시스템 설계에서의 설계 방향에 대해 연구한다. 세포의 본래 구조인 3차원 배열이 아닌 FPGA를 이용하여 Cell들을 2차원 구조로 설계하고 효율적인 오류검출을 위한 블록배열 방법에 대해 알아보았다. 일정한 규칙성을 지닌 방법으로 설계를 하므로 전체 디지털 회로를 세부적으로 나누어 배열 시 쉽고 빠르게 검출할 수 있다.

SCTP 기술을 이용한 효율적인 DLNA 미디어 스트리밍 환경 구축에 관한 연구 (A Study of the Efficient DLNA Media Streaming System using SCTP)

  • 강기철;김대진
    • 한국방송∙미디어공학회:학술대회논문집
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    • 한국방송공학회 2011년도 하계학술대회
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    • pp.212-215
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    • 2011
  • 최근의 스마트 폰 및 스마트 TV 열풍은 사용자의 가정 내 무선 멀티미디어 네트워킹 서비스에 대한 욕구를 증가시켰고, 2004년 출범한 DLNA 기술의 보급을 촉진시켰다. 그러나 무선 네트워크 환경의 불안정성과 기존 TCP/UDP 데이터 전송 기술이 가진 한계로 인해 DLNA를 통한 고화질의 멀티미디어 데이터 서비스에는 제한이 존재했던 것이 사실이다. 이에 본 논문은 이러한 문제의 해결 방안을 모색하고자 DLNA 디바이스인 DMR과 DMS 간 SCTP 멀티 스트리밍 기술을 이용한 미디어 데이터 스트리밍 방법에 관해 연구하고, 이를 구현하였다. 전송된 스트림은 여러 조각으로 나뉘어 동일한 양의 버퍼에 복사되고, 버퍼 각각에 스트림 번호를 부여하여 SCTP 멀티 스트리밍 기법을 이용해 전송함으로써 더욱 신뢰성 있는 미디어 데이터의 스트리밍이 가능하였다.

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아파트 관리비에 대한 거주자의 인지도 및 불만족에 관한 연구 (A Study on the degree of Residents' Dissatisfaction and Recognition to the Apartment Management Fee)

  • 김진영;강순주
    • 한국주거학회논문집
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    • 제9권3호
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    • pp.1-11
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    • 1998
  • This study is intended to analyze residents' dissatisfaction and recogonition to the apartment management fee. The subjects of the study were 244 female residents who live in Seoul and who were surveyed by questionnaire from 15th of Nov. to 20th of Dec., 1997. Satistical method used were: frequency, percentage, mean, Cronbach's α, Factor Analysis, one-way ANOVA, DMR test, t-test Pearson Correlation and Regression by SPSS program. The main results of this study are as follows: 1) The resident didn't mostly know how to account the apartment management fee. 2) The degree of recogonition to distribution of the special maintenance contracts was the lowest level. 3) It was the most dissatisfactory factor not to show items of the special maintenance contracts. 4) The correlation coefficient of residents' dissatisfaction and recognition to the apartment management fee was negative.

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전업주부의 사회활동 참여에 따른 유형화와 유형별 특성에 관한 연구 (A Study on the Pattern of Housewives여 Social Activity Participation)

  • 정현희;구혜령
    • 가족자원경영과 정책
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    • 제7권1호
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    • pp.153-167
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    • 2003
  • The purposes of this study were to examine the pattern of housewives’social activity participation and investigate the characteristics of this pattern. The data of this study were collected from 340 housewives living in Seoul area. Statistical methods used were frequency, percentage, oneway ANOVA, DMR-test, and cluster analysis. The results of this study were as follows; 1) 52.6% of respondents participated in social education, only 20.8% in volunteer work. And a large number of housewives(77.6% of respondents) wanted to get a job. 2) Housewives were classified into job-demand group, job-apathy group and social activity oriented group by the pattern of social activity participation. And these groups were differed by Age, income, degree of satisfaction as a housewife, time constraints, and money constraints.

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도시가계의 경제적불안정성 유형에 따른 재무관리행동 (The Financial Management Behavior by the Types of Economic Instability in the Urban Households)

  • 홍향숙;이기춘
    • 대한가정학회지
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    • 제37권9호
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    • pp.39-56
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    • 1999
  • Households have experienced economic instability since Korea economic crisis in 1997. This study attempts to explore the financial management behavior by the types of economic instability classified considering the two aspects of the employment and the income instability of the households. The specific objectives of this study are : 1) to classify households’economic instability in terms of employment and income instability. 2) to examine whether the financial management behavior is different between households experiencing the different types of the economic instability. The sample consisted of 792 married women living in Seoul. The statistical methods used for analysis included Reliability, Frequencies, Percent, Mean, Standard Deviation, Analysis of Covariance, one-way Anova, DMR-test. The major results can be summarized as following : 1) The economic instability experienced by houeholds can be classified into the 4 types employment-income instability, employment instability income stability, employment stability$.$income instability, and employment$.$income stability. 2) There are statistically significant differences in the levels of financial management behavior between households having the different types of economoc instability. The results of this study could be needed for development of the employment policies and the financial education programs.

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도시주부의 환경지식과 자원절약태도가 자원절약행동에 미치는 영향 (The Effects of Urban Housewives′ Environmental Knowledge and Family Resource Management Attitude on Family Resource Management Behavior)

  • 홍성희;이경희;곽인숙
    • 대한가정학회지
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    • 제42권9호
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    • pp.67-83
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    • 2004
  • The purpose of this study were, (1) to analyze the effect of the selected variables on urban housewives' family resource management attitude and behavior, and (2) to identify the casual effects of variables on family resource management behavior. A sample of 641 was selected from housewives living in urban area. For data analysis, one-way ANOVA, DMR test, t-test, multiple regression, and path analysis were used. The major findings were as follows: 1. The housewives' family resource management behavior level was lower than their attitude level. 2. The family resource management attitude and behavior among the respondents were affected by the following independent variables : interest with environmental reports and newspapers, perception of time constraints, perception of economic reward. 3. The family resource management attitude had the greatest causal effect on the family resource management behavior.

도시주부의 환경친화적 행동과 영향요인에 관한 연구 (A Study on Housewives′ Pro-Environmental Behavior and it′s Determinants in Urban Area)

  • 곽인숙;이경희;홍성희
    • 대한가정학회지
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    • 제41권12호
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    • pp.169-186
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    • 2003
  • The purpose of this study were (1) to examine the level of housewives' pro- environmental behavior, and (2) to analyze the effect of the selected variables on pro-environmental behavior 941 sample were selected from housewives living in urban area. For the analysis of data, frequencies, means, one-way ANOVA, DMR test, Chi-square test, and multiple regression analysis were used. The major findings were as follows:1. The level of housewives' pro-environmental behavior was lower than that of pro-environmental attitude. 2. The level of housewives' pro-environmental behavior was mainly affected by their environment-related variables, for example, pro-environmental attitude, and experience of environmental education. Most of socio-demographic variables and family-related variables didn't have significant effects on the level of pro-environmental behavior.

Representing and constructing liquefaction cycle alternatives for FLNG FEED using system entity structure concepts

  • Ha, Sol;Lee, Kyu-Yeul
    • International Journal of Naval Architecture and Ocean Engineering
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    • 제6권3호
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    • pp.598-625
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    • 2014
  • To support the procedure for determining an optimal liquefaction cycle for FLNG FEED, an ontological modeling method which can automatically generate various alternative liquefaction cycles were carried out in this paper. General rules in combining equipment are extracted from existing onshore liquefaction cycles like C3MR and DMR cycle. A generic relational model which represents whole relations of the plant elements has all these rules, and it is expressed by using the system entity structure (SES), an ontological framework that hierarchically represents the elements of a system and their relationships. By using a process called pruning which reduces the SES to a candidate, various alternative relational models of the liquefaction cycles can be automatically generated. These alternatives were provided by XML-based formats, and they can be used for choosing an optimal liquefaction cycle on the basis of the assessments such as process simulation and reliability analysis.

염산용액에서 Cyanex 572를 사용하여 [Sm]/[Pr, Nd] 분리를 위한 향류추출 공정변수 계산 (Calculation of Countercurrent Extraction Process for Separation of [Sm]/[Pr, Nd] in Hydrochloric Acid Solution using Cyanex 572)

  • 이주은;소홍일;장인환;안재우;김홍인;이진영
    • 자원리싸이클링
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    • 제27권5호
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    • pp.69-76
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    • 2018
  • 추출제로 Cyanex 572를 사용하여 염산용액에서 [Sm]과 [Pr, Nd]그룹을 분리하기 위해 Xu Guangxian이 제시한 이론에 의하여 최적 향류 추출 공정 변수를 계산하고자 하였다. 기초실험으로부터, [Sm]/[Pr, Nd]의 두 그룹 최적 분리계수는 추출공정의 경우 pH 1.75에서 14.59, 세정공정에서는 0.01M HCl에서 14.61 이었다. [Sm]과 [Pr, Nd] 그룹분리에 필요한 공정 변수에 대해 계산을 하였다. 계산 결과 두 그룹의 희토류 분리에 필요한 총 추출 및 세정 단수는 11단이었으며, 최적추출비를 유지시키기 위해 필요한 원료용액, 추출용액 및 세정용액의 유량비는 0.1 M HCl을 사용하였을 경우 6.25 : 1.74 : 5.80 이었다.