• 가정과삶의질연구
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• 제20권1호
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• pp.45-56
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• 2002

The main purposes of this article are to introduce the theoretical backgrounds and empirical application methods of two different Models for the function of expenditure, and to compare the goodness-o(-fit of the two models: a single-equation model and a complete-system-of-demand-equation model. For the empirical analysis of the single-equation model, a linear formula and a double-leg formula were employed. In order to test the complete-system-of-demand-equation model empirically, the \"Linear Approximation/Almost Ideal Demand System (LA/AIDS)" was used. The independent variables were the total living expense and expenditure categories Price index. The data used in this study were obtained from the quarterly statistics of "The Annual Report on the Urban Family Income and Expenditure Survey (Dosigagyeyonbo)" and "The Annual Report on the Consumer Price Index (Sobijamulgajaryo)," for the years 1994 to 1997. The goodness-of-fit (R-square) was higher with the complete-system-of-demand-equation model than with the single-equation model for the budget share on food (excluding eating-out expenses) and for the share on cultural and recreational activities. However, there was no difference between the two models in terms of the proportion of the expenditure on automobile fuel.fuel.

• Nuclear Engineering and Technology
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• 제49권5호
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• pp.953-967
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• 2017

In this paper, a complete station blackout (SBO) or complete loss of electrical power supplies is simulated and analyzed in a downward cooling 5-MW pool-type Material Testing Reactor (MTR). The scenario is traced in the absence of active cooling systems and operators. The code nodalization is successfully benchmarked against experimental data of the reactor's operating parameters. The passive heat removal system includes downward water cooling after pump breakdown by the force of gravity (where the coolant streams down to the unfilled portion of the holdup tank), safety flapper opening, flow reversal from a downward to an upward cooling direction, and then the upward free convection heat removal throughout the flapper safety valve, lower plenum, and fuel assemblies. Both short-term and long-term natural core cooling conditions are simulated and investigated using the RELAP5 code. Short-term analyses focus on the safety flapper valve operation and flow reversal mode. Long-term analyses include simulation of both complete SBO and long-term operation of the free convection mode. Results are promising for pool-type MTRs because this allows operators to investigate RELAP code abilities for MTR thermal-hydraulic simulations without any oscillation; moreover, the Tehran Research Reactor is conservatively safe against the complete SBO and long-term free convection operation.

• Journal of Applied and Pure Mathematics
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• 제4권5_6호
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• pp.299-315
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• 2022

This manuscript deals with the exact (complete) controllability of semilinear stochastic differential equations with infinite delay and Poisson jumps utilizing some basic and readily verified conditions. The results are obtained by using fixed-point approach and by using advance phase space definition for infinite delay part. We have used the axiomatic definition of the phase space in terms of stochastic process to consider the time delay of the system. An infinite delay along with the Poisson jump is the new investigation for the given stochastic system. An example is given to illustrate the effectiveness of the results.

• BMB Reports
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• 제30권5호
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• pp.362-369
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• 1997

Multiple phosphorylation of the carboxy-terminal domain (CTD) of the largest subunit in RNA polymerase II (RNAP II) is thought to play an important role in the transcription cycle. The preinitiation complex in a partially purified complete transcription system suggested that RNA polymerase IIA containing unphosphorylated CTD is involved in complex assembly, whereas RNA polymerase IIO containing Ser and Thr phosphorylated CTD is not involved in preinitiation complex assembly. Recently a minimal transcription system was developed which requires chemically defined minimal components for its transcription: TBP, TFIIB, TFIIF, RNAP II and a supercoiled adenovirus-2 major late promoter (Ad-2 MLP). It would be using interesting to determine the consequence of CTD phosphorylation on preinitiation complex formation using the minimal transcription system. Contrary to the results from the partially purified complete transcription system, both RNA polymerase IIA and IIO are equally recruited in the preinitiation complex formation. The discrepancy may result from the two different assays used to determine complex formation, the use of chemically undefined complete and defined minimal transcription systems. This implicates that some factors in the complete transcription system are involved in the distinction between RNAP IIA and IIO in complex assembly. In addition multiple tyrosine phosphorylation of the CTD of RNAP II was prepared with c-Abl kinase and its recruiting ability in the preinitiation complex was examined. Compare with Ser and Thr phosphorylated RNAP IIO, Tyr phosphorylated RNAP IlOy forms a stable preinitiation complex in both the minimal and complete transcription systems. Based on these results, it seems that tyrosine phosphorylation of the CTD is important in the transcription cycle on the special subset of class-II promoter or has a different role in the transcription process.

• 컴퓨터교육학회논문지
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• 제7권1호
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• pp.107-118
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• 2004

본 연구에서 제안하는 시스템은 기존의 웹기반에서의 문제운행 시스템원리인 학습내용전개$\rightarrow$문제제공$\rightarrow$평가결과를 제시하는 수준에서 탈피한 IPI(Individually Prescribed Instruction: 개별처방식 수업)를 적용한 개별완전학습을 목표로 설계 구현한 것이다. 개별완전학습을 하기 위하여 먼저 선수학습의 진단평가가 이루어지며 이에 따라 학생들 각자에 맞는 학습을 하게 된다. 또한 학생들마다 수업 목표에 도달하는 시간이 다르기 때문에 하나의 단원을 완전학습하기 전에는 다음 단원으로 학습이 진행될 수 없다. 따라서 학습의 성취도를 측정하기위해 각 단원의 학습 뒤에 평가가 이루어지며 평가결과 80%이상의 성취수준을 보이면 다음 단원의 학습으로 계속 진행이 이루어지고, 80%미만의 성취수준을 보이면 다음단원으로의 진행이 제한되고 개인별 보충학습이 이루어진다. 여기서 보충학습은 학습자가 완전히 학습하지 못한 학습에 대한 수준별 처방 학습이다. 따라서 본 연구는 개별처방식 수업의 완전학습에 그 목표를 두고 선수학습 결손을 방지하고 개인적 능력에 따라 피드백 학습을 하여 완전학습 목표에 도달할 수 있도록 시스템을 설계 및 구현하였다.

• 한국정보통신학회논문지
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• 제19권12호
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• pp.2865-2870
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• 2015

최근 양자 컴퓨터가 개발되는 등 컴퓨팅 하드웨어의 성능이 발전하면서 단시간 내에 처리할 수 있는 정보의 양이 기하급수적으로 증가하고 있다. Koblitz-Fellows가 제안한 암호시스템은 생성할 수 있는 불변 다항식(invariant polynomial)의 개수가 충분하지 않아 특정 3-정규 그래프에서 완전지배집합(Perfect Dominating Set, PDS)을 찾는 문제가 NP-complete임을 보장할 수 없는 문제점이 발생한다. 본 논문에서는 이러한 취약점을 보완하기 위해 Koblitz-Fellows가 제안한 3-정규 그래프 상에서 완전지배집합을 이용하여 불변 다항식의 개수를 기하급수적으로 증가시킴으로 계산의 복잡도를 더욱 난해하게 하여 암호시스템의 취약점을 개선하도록 제안한다.

• Kyungpook Mathematical Journal
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• 제56권2호
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• pp.529-539
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• 2016

In this paper, we obtain solution for the first order matrix dynamical system and also we provide set of necessary and sufficient conditions for complete controllability and complete observability of the Sylvester matrix dynamical system.

• Asian-Australasian Journal of Animal Sciences
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• 제16권11호
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• pp.1572-1576
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• 2003

A growth trial of 180 days was conducted on 18 crossbred calves (6-9 months, $73.48{\pm}6.52kg)$ by randomly allotting to two complete diets and a conventional diet (6 in each group). The complete diets were formulated containing 40 per cent cotton straw, one processed in mash form and other subjected to expander-extruder pelletization (EEP). These two complete diets were compared with conventional system of feeding under which concentrate mixture and cotton straw were fed separately in a 60:40 ratio. The calves on EEP complete diet consumed more (p<0.01) DM in comparison to other two groups. The DMI per 100 kg body weight was similar among all the diets. The ADG was significantly (p<0.01) higher in calves fed EEP complete diets (815.4 g) followed by mash (627.0 g) in comparison to conventional diet (464.9 g). The DM intake per kg metabolic body weight was higher (p<0.01) on complete diet than conventional diet. The intakes of DCP (p<0.05), TDN (p<0.01), and ME (p<0.01) per kg metabolic body weight were significantly higher on EEP complete diet in comparison to mash and conventional diet. The water intake per kg DM intake was comparable among all the diets. The efficiency of DM utilisation was higher p (<0.05) on EEP complete diet (5.84) in comparison to conventional diet (7.41), whereas on mash diet it was intermediate (6.68). The efficiency of DCP utilization was similar in mash and EEP complete diet fed groups, which was higher (p<0.05) than that of the conventional diet. Expander-extrusion though increased the cost of production it reduced the cost of feed per unit live weight gain by 12.28% in comparison to its mash form and by 16.76% when concentrate and cotton straw were fed separately. The results indicated that blending of cotton straw along with concentrates in a complete diet increased the palatability of the straw in comparison to conventional system and expander extruder processing of cotton straw based complete diet gave better growth performance and may form an economic ration for growing crossbred calves.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.1201_1202
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• 2009

This paper represents the results of a complete train test of TMS(train control and management system) for korean tilting train express(TTX). This system, installed on TTX is responsible for monitors and controls of various local devices. This kind of test procedure is first time in Korea. So, we made of new standards related on a component test of the TMS and conducted to the complete Component Test and running test on conventional railway. We realized that this device is robust and good performance regarding as communication with other devices and reliability of TMS.

• 대한수학회보
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• 제54권5호
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• pp.1627-1654
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• 2017

We prove that in the parameter space of M-dimensional Fano complete intersections of index one and codimension two the locus of varieties that are not birationally superrigid has codimension at least ${\frac{1}{2}}(M-9)(M-10)-1$.