• Journal of Broadcast Engineering
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• v.16 no.6
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• pp.1069-1072
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• 2011

This paper proposes the method which reduces complexity and improves coding efficiency by solving a problem of HEVC bi-prediction. In current HM 3.0, it is frequently occurred that L0 motion information and L1 motion information are identical in blocks which are bi-predicted. In this case, L1 motion vector is replaced by non-zero motion vector which belongs to first available neighbor block of current block. If they are still identical, prediction mode is replaced by uni-prediction. As an experimental result, in LD(Low-Delay) case, decoding time is reduced roughly 2%~5% and coding gain is roughly 0.3%~0.5% compared with the HM 3.0 anchor.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.15 no.10 s.89
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• pp.931-937
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• 2004

This study examines the channel capacity of a multiple antenna system based on OFDM(Othogonal Frequency Division Multiplexing) when there are correlations among received signals in the frequency selective Rayleigh fading. As for a case that two transmitting and two receiving antennas are used, the channel capacity is derived as a function of correlation in a closed-form and the effect on channel capacity is analyzed when the mean value of the of received signal power is identical/ non-identical between the two receiving antennas. Analytical results show that the channel capacity decreases with the correlation coefficient of the received signals, and the decreasing rate is accelerated when the correlation coefficient of the received signals is greater than 0.7. In addition, the channel capacity reaches its peak when the received mean signal power of each branch is identical.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.23 no.59
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• pp.37-42
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• 2000

The parallel machines scheduling problems is one of the combinatorial optimization problems that often occurs in the real world. This problem is classified into two cases, one of which is the case which processing time are identical and the other, nonidentical. Not so much researches have been made on the case that nonidentical parallel machines scheduling problem. This study proposes Tabu Search methods for solving parallel machines scheduling problems related to due dates: minimizing mean tardiness, minimizing the number of tardy jobs, minimizing the maximum tardiness.

• Journal of Chest Surgery
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• v.26 no.12
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• pp.962-964
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• 1993

Myoepithelioma of the trachea is an extremely rare disease. The neoplasm shows histologic features identical to those described in myoepithelioma of salivary glands. The myoepithelioma cells demonstrate the numerous myofilament, desmosomal cellular attachment, cytoplasmic glycogen and pinocytotic vesicles. In immunohistochemical study, myoepithelioma cells show the positive antibody reactions to actin, keratin, vimentin and S-100 protein. A case of myoepithelioma arising from trachea in the seventy-two-year old male diagnosed by microscopic finding and immunohistochemistry is presented.

• Journal of Communications and Networks
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• v.6 no.1
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• pp.78-87
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• 2004

This paper presents deterministic, worst-case analysis of a queueing system whose multiple homogeneous input streams are regulated by the associated leaky buckets and the queueing system that has a single stream regulated by the jumping-window. Queueing delay averaged over all items is used for performance measure, and the worst-case input traffic and the worst-case performance are identified for both queueing systems. For the former queueing system, the analysis explores different phase relations among leaky-bucket token generations. This paper observes how the phase differences among the leaky buckets affect the worst-case queueing performance. Then, this paper relates the worst-case performance of the former queueing system with that of the latter (the single stream case, as in the aggregate streams from many users, whose item arrivals are regulated by one jumping-window). It is shown that the worst-case performance of the latter is identical to that of the former in which all leaky buckets have the same phase and have particular leaky bucket parameters.

• Journal of Korean Society for Quality Management
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• v.27 no.4
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• pp.143-152
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• 1999

In Shewhart control chart, the average run length(ARL) is calculated using the mean of a conventional geometric distribution(CGD) assuming a sequence of identical and independent Bernoulli trials. In this, the success probability of CGB is the probability that any point exceeds the control limits. When the process is in-control state, there is no problem in the above assumption since the probability that any point exceeds the control limits does not change if the in-control state continues. However, if the out-of-control state begins and continues during the process, the probability of exceeding the control limits may take two forms. First, once the out-of-control state begins with exceeding probability p, it continues with the same exceeding probability p. Second, after the out-of-control state begins, the exceeding probabilities may very according to some pattern. In the first case, ARL is the mean of CGD with success probability p as usual. But in the second case, the assumption of a sequence of identical and independent Bernoulli trials is invalid and we can not use the mean of CGD as ARL. This paper concentrate on that point. By adopting one generalized binomial distribution(GBD) model that allows correlated Bernoulli trials, generalized geometric distribution(GGD) is defined and its mean is derived to find an alternative ARL when the process is in out-of-control state and the exceeding probabilities take the second form mentioned in the above. Small-scale simulation is performed to show how an alternative ARL works.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.30
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• pp.59-88
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• 2006

After sources of risks are identical and measured, a decision can be made as to how the risk should be handled. A pure risk that is not identical does not disappear ; the business merely loses the opportunity to consciously decide on the best technique for dealing with that risk. The process used to systematically manage risk exposures is known as risk management. Risk management is the logical process used by business firms and individuals to deal with their exposures to loss. It is a strategy of preloss planning for postloss resources. Besides, in the enterprise judiciary researches the textbook and the instance which relate risks, and reflects it to the written contract provision and various every manuel or holds seminar. It is a risk management which this talks generally. Here it stands but it becomes a problem the quality of type and countermeasure of risks. The purpose of this paper aims to explain adequate preventions to positively predict the risk this before being materialized, in practical section which is directly exposed to these risks in introducing international sale contracts(for example, the FOB and CIF contract) and the active management method of the risk which accompanys to the execution. And also analyzes the Lite-On case which relates with an international sale contracts.

• Proceedings of the Korea Water Resources Association Conference
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• 2015.05a
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• pp.537-537
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• 2015

In recent decades, the independence and identical distribution (iid) assumption for extreme events has been shown to be invalid in many cases because long-term climate variability resulting from phenomena such as the Pacific decadal variability and El Nino-Southern Oscillation may induce varying meteorological systems such as persistent wet years and dry years. Therefore, in the current study we propose a new parameter estimation method for probability distribution models to more accurately predict the magnitude of future extreme events when the iid assumption of probability distributions for large-scale climate variability is not adequate. The proposed parameter estimation is based on a metaheuristic approach and is derived from the objective function of the rth power probability-weighted sum of observations in increasing order. The combination of two distributions, gamma and generalized extreme value (GEV), was fitted to the GEV distribution in a simulation study. In addition, a case study examining the annual hourly maximum precipitation of all stations in South Korea was performed to evaluate the performance of the proposed approach. The results of the simulation study and case study indicate that the proposed metaheuristic parameter estimation method is an effective alternative for accurately selecting the rth power when the iid assumption of extreme hydrometeorological events is not valid for large-scale climate variability. The maximum likelihood estimate is more accurate with a low mixing probability, and the probability-weighted moment method is a moderately effective option.

• Russian Language and Literature
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• no.61
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• pp.89-112
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• 2018

This paper deals with pronoun doubling construction commonly attested in Colloquial Russian. The doubling phenomena in general are observed among various languages and in various levels of language. The Russian pronoun doubling construction is composed of a lexical noun, whether argument or adjunct, that is attracted to a sentence initial position with a pronoun copy immediately following it. The pronominal copy bears the identical case. From the semantic side, the fronted noun-pronoun phrase forms a topic, and often elicits the reading of predicate with permanent property. After Sirotinina(1974)'s observation, such aspectual restriction has been widely accepted in the scholarship, and was reinterpreted by McKoy (1998, 2003) as the distinction Individual-level vs. Stage-level predicates in terms of Milsark (1974) and Carlson (1977). I argue that such an aspectual interpretation or restriction is not derived from at the construction level, but is epiphenomenal to the small clause, which lies at the bottom of derivation. And I propose that the small-clause based structure is derived by the Generic Topic Operator, which is base generated at Spec, TP. With these two theoretical apparatuses, idiosyncratic properties both in syntax and semantics of the construction can be effectively accounted for.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.05a
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• pp.705-710
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• 2002

Welding is used not only during the shipbuilding, but also during the repairing of ships. While repairing of ships, it is inevitable to weld new materials with degraded materials. In this case, it is predicted that the strength of both the sections is not identical each other. In this study, the respective welded joints in terms of mechanical properties such as microstructure, mechanical strength and fatigue crack propagation, with the component obtained from the barge used for a long-term period, were analyzed. It was found that the material degradation had a significant effect on the welded joints. The fatigue crack propagation in welded sections showed a big difference. The rate of fatigue crack growth of degraded material for both heat affected zone and parent metal was faster than that of new material. By contrast, The result within identical materials showed that the heat-affected zone was slower than that of parent metal