scholarly journals LRU is better than FIFO under the independent reference model

1992 ◽  
Vol 29 (1) ◽  
pp. 239-243 ◽  
Author(s):  
J. van den Berg ◽  
A. Gandolfi
Keyword(s):  
Reference Model ◽  
Storage System ◽  
Replacement Strategy ◽  
Fkg Inequality ◽  
The Fkg Inequality ◽  
First In First Out ◽  
System Operating ◽  
Better Than

Consider a two-level storage system operating with the least recently used (LRU) or the first-in, first-out (FIFO) replacement strategy. Accesses to the main storage are described by the independent reference model (IRM). Using the FKG inequality, we prove that the miss ratio for LRU is smaller than or equal to the miss ratio for FIFO.

scholarly journals LRU is better than FIFO under the independent reference model

1992 ◽  
Vol 29 (01) ◽  
pp. 239-243 ◽  
Author(s):  
J. van den Berg ◽  
A. Gandolfi
Keyword(s):  
Reference Model ◽  
Storage System ◽  
Replacement Strategy ◽  
Fkg Inequality ◽  
The Fkg Inequality ◽  
First In First Out ◽  
System Operating ◽  
Better Than

Consider a two-level storage system operating with the least recently used (LRU) or the first-in, first-out (FIFO) replacement strategy. Accesses to the main storage are described by the independent reference model (IRM). Using the FKG inequality, we prove that the miss ratio for LRU is smaller than or equal to the miss ratio for FIFO.

Bagasse Wet-Stored with the Hypochlorite Bleaching Waste Water

2013 ◽  
Vol 295-298 ◽  
pp. 198-201 ◽  
Author(s):  
Bing Sun ◽  
Li Bao ◽  
Yu Xin Liu
Keyword(s):  
Waste Water ◽  
Molecular Weight ◽  
Storage Time ◽  
Storage System ◽  
Reducing Sugar ◽  
Total Sugar ◽  
Small Molecular Weight ◽  
Wet Storage ◽  
Change Trend ◽  
Better Than

In this paper, the bagasse was wet stored by hypochlorite bleaching waste water with or without chlorine. The dissolution ability of lignin, total sugar and reducing sugar was investigated. Then the effluent properties with the wet storage time prolonging were tested. The results showed that some small molecular weight substances were dissolved from baggase, such as sugar and lignin. And the dissolution ability of hypochlorite bleaching waste water with chlorine was better than that of hypochlorite bleaching waste water without chlorine. And the change trend of effluent properties for the two wet storage system were similar. With the wet storage time extending, the dissolved substances were degraded, COD and chroma of effluent were decreased, and the properties of effluent were improved.

scholarly journals A Study On Database Structure Of Prosumer System For Online Analysis

2021 ◽  
Vol 12 (6) ◽  
pp. 579-584
Author(s):  
Hyun-Sung Lim Et.al
Keyword(s):  
Reference Model ◽  
Storage System ◽  
Energy Storage System ◽  
Photovoltaic System ◽  
Recall Accuracy ◽  
Database Structure ◽  
Network Method ◽  
Wind Power System ◽  
Platform System ◽  
And Training

Energy prosumer can not only save on electrical bills but also make profits by selling energy produced.  To develop online prosumer platform, this paper present database structure of each prosumer system(Photovoltaic system, Energy Storage System, Wind power system, EV Charger system). The cause of abnormalities in prosumer facilities and designed the database and developed the reference model by big data measured from the hardware. The data was preprocessed all values from the acquired data between 0 and 1 and training set and test set generated for the data transposition process. For applied AI algorithms, this paper adapted DNN(Deep Neural Network) method. This paper used Precision, Recall, Accuracy, F1-score. The result of experiment is high value of each expression. Recall value is high values and this expression is important to safety area focus. This database structure will provide online prosumer platform system and batter prediction safety system.

scholarly journals Optimal Scheduling of Distributed Energy Resources in Residential Building under the Demand Response Commitment Contract

Energies ◽  
2019 ◽  
Vol 12 (14) ◽  
pp. 2810 ◽  
Author(s):  
Keon Baek ◽  
Woong Ko ◽  
Jinho Kim
Keyword(s):  
Demand Response ◽  
Management System ◽  
Reference Model ◽  
Storage System ◽  
Operating Cost ◽  
Energy Resource ◽  
Residential Building ◽  
Mixed Integer ◽  
Distributed Energy ◽  
Proposed Model

This study proposes optimal day-ahead demand response (DR) participation strategies and distributed energy resource (DER) management in a residential building under an individual DR contract with a grid-system operator. First, this study introduces a DER management system in the residential building for participation to the day-ahead DR market. The distributed photovoltaic generation system (PV) and energy-storage system (ESS) are applied to reduce the electricity demand in the building and sell surplus energy on the grid. Among loads in the building, lighting (LTG) and heating, ventilation, and air conditioning (HVAC) loads are included in the DR program. In addition, it is assumed that a power management system of an electric vehicle (EV) charging station is integrated the DER management system. In order to describe stochastic behavior of EV owners, the uncertainty of EV is formulated based on their arrival and departure scenarios. For measuring the economic efficiency of the proposed model, we compare it with the DER self-consuming operation model without DR participation. The problem is solved using mixed integer linear programming to minimize the operating cost. The results in summer and winter are analyzed to evaluate the proposed algorithm’s validity. From these results, the proposed model can be confirmed as reducing operation cost compared to the reference model through optimal day-ahead DR capacity bidding and implementation.

Multivariate monotone likelihood ratio and uniform conditional stochastic order

1982 ◽  
Vol 19 (3) ◽  
pp. 695-701 ◽  
Author(s):  
Ward Whitt
Keyword(s):  
Conditional Probability ◽  
Likelihood Ratio ◽  
Probability Distributions ◽  
Stochastic Order ◽  
Total Positivity ◽  
Probability Measures ◽  
Monotone Likelihood Ratio ◽  
Fkg Inequality ◽  
The Fkg Inequality

Karlin and Rinott (1980) introduced and investigated concepts of multivariate total positivity (TP2) and multivariate monotone likelihood ratio (MLR) for probability measures on Rn These TP and MLR concepts are intimately related to supermodularity as discussed in Topkis (1968), (1978) and the FKG inequality of Fortuin, Kasteleyn and Ginibre (1971). This note points out connections between these concepts and uniform conditional stochastic order (ucso) as defined in Whitt (1980). ucso holds for two probability distributions if there is ordinary stochastic order for the corresponding conditional probability distributions obtained by conditioning on subsets from a specified class. The appropriate subsets to condition on for ucso appear to be the sublattices of Rn. Then MLR implies ucso, with the two orderings being equivalent when at least one of the probability measures is TP2.

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