• 한국통신학회논문지
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• 제22권9호
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• pp.2080-2089
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• 1997

최근 급격히 발전된 컴퓨터 기술에 힘입어 다양한 분야에서의 멀티미디어 데이터 처리가 가능하게 되었다. 그러나, 기존의 디스크 저장 시스템으로 멀티미디어의 특징을 수용하기에는 무리가 있다. 현재, 몇몇의 연구에서 멀티미디어 저장에 관한 향상된 기술을 소개하였고, 그 중 Bocheck는 엑세스 주기와 단위가 동일한 다중스트림의 분할 저장 기법을 제안하였으나, 서로 상이한 주기를 갖는 연속 미디어의 스트림에 관해서는 고려되지 않았다. 이 논문에서는 조회 주기가 서로 상이한 스트림을 고정된 몇 개의 블록으로 할당하는 방안을 제안하고 주어진 다중스트림을 m개의 시퀀스로 스케줄링시 그 가능성을 분석하였으며, 기존의 Scan-EDF와 디스크 분할 저장 방식과 비교하기 위해서 시뮬레이션을 행하였다.

• 전자공학회논문지B
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• 제33B권9호
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• pp.49-61
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• 1996

Back-propagation(BP) algorithm needs a lot of time to train the artificial neural network (ANN) to get high accuracy level in classification tasks. So there have been extensive researches to process back-propagation algorithm on parallel processors. This paper prsents a linear systolic array which calculates forward-backward propagation of BP algorithm at the same time using effective space-time transformation and PE structure. First, we analyze data flow of forwared and backward propagations and then, represent the BP algorithm into data dapendency graph (DG) which shows parallelism inherent in the BP algorithm. Next, apply space-time transformation on the DG of ANN is turn with orthogonal direction projection. By doing so, we can get a snakelike systolic array. Also we calculate the interval of input for parallel processing, calculate the indices to make the right datas be used at the right PE when forward and bvackward propagations are processed in the same PE. And then verify the correctness of output when forward and backward propagations are executed at the same time. By doing so, the proposed system maximizes parallelism of BP algorithm, minimizes th enumber of PEs. And it reduces the execution time by 2 times through making idle PEs participate in forward-backward propagation at the same time.

• 사상체질의학회지
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• 제14권3호
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• pp.33-51
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• 2002

1. Purpose This study is intended to catch the expasion of theory of Sasang Constitutional Medicine through comparision DongyiSooseBowon Chopanbon with DongyiSooseBowon Chobonguen and DongyiSooseBowon Gabobon. 2. Method I compared the Soyangin's prescription and medications of DongyiSooseBowon Chopanbon with those of DongyiSooseBowon Chobonguen and Dongyisoosebowon Gabobon. 3. Result and conclusion 1) Soyangin's Medications of the same kind in Chobonguen's prescriptions and Gabobon's and Chopann's are thirty-two; like Bangpoong(防風), Hyeunggye(荊芥), Sangjihwang(生地黃), sukgo(石膏), etc. And these medications are the principle in Soyangin's disease. 2) Soyangin's Prescriptions of the same name in Chobonguen's prescriptions and Gabobon's and Chopanbon's are Yangdokbackhotang(陽毒白虎湯). Chopanbon's Yangdokbackhotang(陽毒白虎湯) is more rational and effective prescription. 3) Soyangin's Prescriptions of the same name in Chobonguen's prescriptions and Gabobon's are eleven; Bangpoongtongseungsan(防風通聖散), chengumdojuksan(千金導赤散), etc. These prescriptions are similar in the structure. 4) Soyangin's Prescriptions of the same name in Gabobon's prescriptions and Chopanbon's are five; Hyungbangpaedoksan(荊防敗毒散), Yangdokbackhotang(陽毒白虎湯). etc. These Prescriptions make a change in the structure from Gabobon's to Chopanbon's. As this we know that Dongmu(東武) selected Sasang Constitutional prescription and medication in detail as he has the more experience of treatment.

• Archives of Pharmacal Research
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• 제16권4호
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• pp.305-311
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• 1993

$Na^+,K^+$-ATPase activity, $Na^+$-dependent phosphorylation, and $[^3H]$ ouabain binding in sarcolemma prepared from 4 week old spontaneously hypertensive rat(SHR) ventricles were compared to the same parameters in sarcolemma from age matched nomotensive Wister-Kyoto (WKY) rat ventricles to examine whether the reduced myocardial $Na^+$-pump activity in SHR is an inherited enzymatic defect or a second phenomenon due to sustained hypertension. The total body weights, ventricular weights, and blood pressures were the same for SHR and WKY. No significant differences in sarcolemmal protein content and protein recovery were noted between the two groups. Sarcolemma isolated from SHR ventricles showed significantly less $Na^+,K^+$-ATPase activity ande number of phosphorylation sites when compared to sarcolemma from the WKY ventricles. Equilibrium binding of $[^3H]$ouabain and the tumover number of myocardial $Na^+,K^+$-ATPase, however, were the same for both groups. These reults indicate that the low affinity $(\alpha,\;or\;\alpha^1)\;\alpha$ isoform is the same in ventricles of SHR and WKY. The reduced amount of isoform of the $Na^+,K^+$-ATPase inprehypetensive SHR ventricles may play some role in the development of hypertension.

• Geomechanics and Engineering
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• 제6권6호
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• pp.613-624
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• 2014

The fractures in coal are the main migration and output channels of coalbed methane, directly influencing the permeability of the coal seams. It is of great significance to study the effect of fracture distribution in coals on the permeability of coal seam. The development rules of endogenetic and exogenetic fractures are different among various coal lithotypes. There is also difference in the fracture density for the same lithotype with different thicknesses. Through the observation and description of the macroscopic fractures in coal and the origin of fractures in coal, the effect of the coal lithotype and its thickness on fracture development in coal was discussed. It was found through the study that the density of fractures in vitrain band was the maximum for the same coal rank and thickness, followed by clarain band. There were few fractures developed in the durain band. However, the changes of fracture density in three types of bands presented different declining trends for low, medium and high coal rank. There were no fractures developed in the fusain. There were three variation patterns for the fracture densities at the same coal rank and coal lithotype: linear decrease, nonlinear decrease, and first decrease then remaining unchanged. However, the overall trend was that the fracture density decreased with the increase of thickness of coal band for the same coal rank and coal lithotype.

• Journal of Electrical Engineering and Technology
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• 제9권4호
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• pp.1217-1228
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• 2014

A method for faulted line detection of four parallel lines on the same tower is presented, based on four-summing and double-differential sequences of one terminal current. Four-summing and double-differential sequences of fault current can be calculated using a certain transformation matrix for parameter decoupling of four parallel transmission lines. According to fault boundary conditions, the amplitude and phase characteristics of four-summing and double-differential sequences of fault current is studied under conditions of different types of fault. Through the analysis of the relationship of terminal current and fault current, a novel methodology for fault line detection of four parallel transmission line on the same tower is put forward, which can pick out the fault lines no matter the fault occurs in single line or cross double lines. Simulation results validate that the methodology is correct and reliable under conditions of different load currents, transient resistances and fault locations.

• 한국군사과학기술학회지
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• 제19권2호
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• pp.244-251
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• 2016

In defense domain, mission level and engagement level simulation tools exist. In order to experiment a simulation scenario for obtaining results of both mission level and engagement level simulations, we should write a same simulation scenario in a mission level simulation tool as well as an engagement level simulation tool, and we have to operate these tools for analysis of each purpose. Moreover, we could not guarantee that these scenarios are completely same since each scenario is composed of different fidelities of simulation models, although the scenarios are written by a same experimenter and with same simulation purpose. To deal with the difficulties, I propose an approach to analysis of both mission level and engagement level simulations from one simulation result. For this, I have built Composite Combat Mission Planning Simulation Environment (CCMPSE). In this paper, the HLA/RTI based simulation composition technology and my experiences for the designed Composite Combat Mission Planning Simulation Control System (CCMPSCS) are explained. Moreover, This paper also conducts a case study with EADSIM, SADM, and the CCMPSCS. Finally, this paper provides lesson learned from the case study.

• 한국산학기술학회논문지
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• 제9권6호
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• pp.1666-1672
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• 2008

USN 미들웨어는 여러 사이트에서 발생하는 센서 정보를 수집하여, 판단하고, 조치를 취하는 기능을 가지고 있다. 한 개 센서 데이터로부터 상황을 결정하는 것은 해당 데이터의 오류나 전체를 반영하지 않을 수 있기 때문에 부적절하다. 여기서는 이러한 문제를 해결하기 위하여 '그룹'이라는 개념을 도입하였다. 그룹은 같은 장소에 같은 조건에 행동하는 센서의 집합이다. 예를 들어 특정 방에서 모든 화재 센서는 미리 정의된 동일한 특정 온도에 도달하면 버저를 울린다. 이때 이들 센서들은 동일한 한 개의 그룹에 속하는 것이다. 지능형 USN 미들웨어의 모든 판단은 이러한 그룹에 기반하여 이루어진다. 본 연구에서는 그룹에 기반한 미들웨어의 지능형 규칙에 대하여 연구를 하였다.

• 한국의류학회지
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• 제35권12호
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• pp.1497-1506
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• 2011

This study identifies the effect of customer-to-customer interactions on the preference of fashion purchase environment. An empirical study surveyed male and female consumers 25 years of age and older in Daegu, Korea, in August 2011. A total of 338 responses were analyzed using descriptive statistics and chi-square analysis of SPSS 19.0. The results identified the effects of the number, gender, age, attractiveness, and taste of other customers in fashion retail settings. In addition, differences in the effect of customer-to-customer interactions according to consumer attributes were also verified. The sample of this study preferred a shopping condition of many shoppers in the store, the same gender shoppers in the store, the same aged shoppers in the store, an attractive shopper in the store, and a shopper having the same taste in the store. Female consumers showed a preference for a store environment with many shoppers and the same gender shoppers to a store of no shoppers and different gender shoppers compared to male consumers. Aged consumers and fashion-involved consumers liked to shop with more attractive persons than less attractive persons. Fashion-innovative consumers wanted to enter a store where the other customers have similar tastes.

• Safety and Health at Work
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• 제9권3호
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• pp.347-351
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• 2018

Background: The success of an injury intervention program can be measured by the proportion of successful return to work (RTW). This study examined factors of successful return to employment among workers suffering from work-related injuries. Methods: Data were obtained from the Social Security Organization, Malaysia database consisting of 10,049 RTW program participants in 2010-2014. The dependent variable was the RTW outcome which consisted of RTW with same employer, RTW with new employer or unsuccessful return. Multinomial logistic regression was performed to test the likelihood of successful return with same employer and new employer against unsuccessful return. Results: Overall, 65.3% of injured workers were successfully returned to employment, 52.8% to the same employer and 12.5% to new employer. Employer interest; motivation; age 30-49 years; intervention less than 9 months; occupational disease; injuries in the lower limbs, upper limbs, and general injuries; and working in the manufacturing, services, and electrical/electronics were associated with returning to work with the same employer against unsuccessful return. Male, employer interest, motivation, age 49 years or younger, intervention less than 6 months, occupational disease, injuries in the upper limbs and services sector of employment were associated with returning to new employer against unsuccessful return. Conclusion: There is a need to strengthen employer commitment for early and intensified intervention that will lead to improvement in the RTW outcome.