Gotowe bibliografie tematyczne / Dynamic Flow Rule

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Gotowa bibliografia na temat „Dynamic Flow Rule”

Autor: Grafiati

Data publikacji: 6 września 2023

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Artykuły w czasopismach na temat "Dynamic Flow Rule"

Kim, Youngjun, Jinwoo Park, and Yeunwoong Kyung. "Mobility-Aware Hybrid Flow Rule Cache Scheme in Software-Defined Access Networks." Electronics 11, no. 1 (2022): 160. http://dx.doi.org/10.3390/electronics11010160.

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Due to the dynamic mobility feature, the proactive flow rule cache method has become one promising solution in software-defined networking (SDN)-based access networks to reduce the number of flow rule installation procedures between the forwarding nodes and SDN controller. However, since there is a flow rule cache limit for the forwarding node, an efficient flow rule cache strategy is required. To address this challenge, this paper proposes the mobility-aware hybrid flow rule cache scheme. Based on the comparison between the delay requirement of the incoming flow and the response delay of the controller, the proposed scheme decides to install the flow rule either proactively or reactively for the target candidate forwarding nodes. To find the optimal number of proactive flow rules considering the flow rule cache limits, an integer linear programming (ILP) problem is formulated and solved using the heuristic method. Extensive simulation results demonstrate that the proposed scheme outperforms the existing schemes in terms of the flow table utilization ratio, flow rule installation delay, and flow rules hit ratio under various settings.

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Shen, Yi, Chunming Wu, Dezhang Kong, and Qiumei Cheng. "Flow Table Saturation Attack against Dynamic Timeout Mechanisms in SDN." Applied Sciences 13, no. 12 (2023): 7210. http://dx.doi.org/10.3390/app13127210.

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Software-defined networking (SDN) enables dynamic management and flexible network control by employing reactive rule installation. Due to high power consumption and cost, current OpenFlow switches only support a limited number of flow rules, which is a major limitation for deploying massive fine-grained policies. This bottleneck can be exploited by attackers to launch saturation attacks to overflow the flow table. Moreover, flow table overflow can occur in the absence of malicious attackers. To cope with this, researchers have developed many proposals to relieve the load under benign conditions. Among them, the dynamic timeout mechanism is one of the most effective solutions. We notice that when the SDN controller adopts dynamic timeouts, existing flow table saturation attacks can fail, or even expose the attackers, due to inaccurate inferring results. In this paper, we extract the common features of dynamic timeout strategies and propose an advanced flow table saturation attack. We explore the definition of flow rule lifetime and use a timing-based side-channel to infer the timeout of flow rules. Moreover, we leverage the dynamic timeout mechanisms to proactively interfere with the decision of timeout values and perform an attack. We conduct extensive experiments in various settings to demonstrate its effectiveness. We also notice that some replacement strategies work differently when the controller assigns dynamic timeouts. The experiment results show that the attack can incur significant network performance degradation and carry out the attack in a stealthy manner.

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MEDDERS, STEPHEN C., EDWARD B. ALLEN, and EDWARD A. LUKE. "USING RULE STRUCTURE TO EVALUATE THE COMPLETENESS OF RULE-BASED SYSTEM TESTING: A CASE STUDY." International Journal of Software Engineering and Knowledge Engineering 20, no. 07 (2010): 975–86. http://dx.doi.org/10.1142/s0218194010005006.

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Rule-based systems are typically tested using a set of inputs which will produce known outputs. However, one does not know how thoroughly the software has been exercised. Traditional test-coverage metrics do not account for the dynamic data-driven flow of control in rule-based systems. Our literature review found that there has been little prior work on coverage metrics for rule-based systems. This paper proposes test-coverage metrics for rule-based systems derived from metrics defined by prior work, and presents an industrial scale case study. We conducted a case study to evaluate the practicality and usefulness of the proposed metrics. The case study applied the metrics to a system for computational fluid-dynamics models based on a rule-based application framework. These models were tested using a regression-test suite. The data-flow structure built by the application framework, along with the regression-test suite, provided case-study data. The test suite was evaluated against three kinds of coverage. The measurements indicated that complete coverage was not achieved, even at the lowest level definition. Lists of rules not covered provided insight into how to improve the test suite. The case study illustrated that structural coverage measures can be utilized to measure the completeness of rule-based system testing.

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Ashrafi, Mohammad, Lloyd H. C. Chua, and Chai Quek. "The applicability of Generic Self-Evolving Takagi-Sugeno-Kang neuro-fuzzy model in modeling rainfall–runoff and river routing." Hydrology Research 50, no. 4 (2019): 991–1001. http://dx.doi.org/10.2166/nh.2019.146.

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Abstract Recent advancements in neuro-fuzzy models (NFMs) have made possible the implementation of dynamic rule base systems. This is in comparison with static applications commonly seen in global NFMs such as the Adaptive-Network-Based Fuzzy Inference System (ANFIS) model widely used in hydrological modeling. This study underlines key differences between local and global NFMs with an emphasis on rule base dynamics, in the context of two common flow forecast applications. A global NFM, ANFIS, and two local NFMs, Dynamic Evolving Neural-Fuzzy Inference System (DENFIS) and Generic Self-Evolving Takagi-Sugeno-Kang (GSETSK), were tested. Results from all NFMs compared favorably when benchmarked against physically based models. Rainfall–runoff modeling is a complex process which benefits from the advanced rule generation and pruning mechanisms in GSETSK, resulting in a more compact rule base. Although ANFIS resulted in the same number of rules, this came about at the expense of having the need for a large training dataset. All NFMs generated a similar number of rules for the river routing application, although local NFMs yielded better results for forecasts at longer lead times. This is attributed to the fact that the routing procedure is less complex and can be adequately modeled by static NFMs.

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Sharma, Pankaj, and Ajai Jain. "Effect of routing flexibility and sequencing rules on performance of stochastic flexible job shop manufacturing system with setup times: Simulation approach." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 231, no. 2 (2016): 329–45. http://dx.doi.org/10.1177/0954405415576060.

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Routing flexibility is a major contributor towards flexibility of a flexible job shop manufacturing system. This article focuses on a simulation-based experimental study on the effect of routing flexibility and sequencing rules on the performance of a stochastic flexible job shop manufacturing system with sequence-dependent setup times while considering dynamic arrival of job types. Six route flexibility levels and six sequencing rules are considered for detailed study. The performance of manufacturing system is evaluated in terms of flow time related and due date–related measures. Results reveal that routing flexibility and sequencing rules have significant impact on system performance, and the performance of a system can be increased by incorporating routing flexibility. Furthermore, the system performance starts deteriorating as the level of route flexibility is increased beyond a particular limit for a specified sequencing rule. The statistical analysis of the results indicates that when flexibility exists, earliest due date rule emerges as a best sequencing rule for maximum flow time, mean tardiness and maximum tardiness performance measures. Furthermore, smallest setup time rule is better than other sequencing rules for mean flow time and number of tardy jobs performance measures. Route flexibility level two provides best performance for all considered measures.

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PRIORE, PAOLO, DAVID DE LA FUENTE, ALBERTO GOMEZ, and JAVIER PUENTE. "DYNAMIC SCHEDULING OF MANUFACTURING SYSTEMS WITH MACHINE LEARNING." International Journal of Foundations of Computer Science 12, no. 06 (2001): 751–62. http://dx.doi.org/10.1142/s0129054101000849.

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A common way of scheduling jobs dynamically in a manufacturing system is by means of dispatching rules. The drawback of this method is that the performance of these rules depends on the state the system is in at each moment, and no one rule exists that overrules the rest in all the possible states that the system may be in. It would therefore be interesting to use the most appropriate rule at each moment. To achieve this goal, a scheduling approach which uses machine learning is presented in this paper. The methodology proposed in this paper may be divided into five basic steps. Firstly, definition of the appropriate control attributes for identifying the relevant manufacturing patterns. In second place, creation of a set of training examples using different values of the control attributes. Subsequently, acquiring of heuristic rules by means of a machine learning program. Then, using of the previously calculated heuristic rules to select the most appropriate dispatching rules, and finally testing of the performance of the approach. The approach that we propose is applied to a flow shop system and to a classic job shop configuration. The results demonstrate that this approach produces an improvement in the performance of the system when compared to the traditional method of using dispatching rules.

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Yu, Chenxu, and Sundaram Gunasekaran. "Correlation of Dynamic and Steady Flow Viscosities of Food Materials." Applied Rheology 11, no. 3 (2001): 134–40. http://dx.doi.org/10.1515/arh-2001-0008.

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AbstractEight commercial foods representing a wide range of viscosities (i.e. honey, condensed milk, mayonnaise, tomato ketchup, cream cheese, yogurt, process and Mozzarella cheeses) were investigated. Their steady shear viscosity and dynamic complex viscosity were determined by rheological measurements at two temperatures using a Bohlin-CVO rheometer. Based on experimental data, shear rate dependence of steady flow apparent viscosity and frequency dependence of dynamic viscosity was established and compared. It was determined that for condensed milk, tomato ketchup and mayonnaise, a modified Cox-Merz relation could be established. For cream cheese, a generalized Cox-Merz relation was proposed; and for yogurt, a deviation from the Cox-Merz rule was found. For Mozzarella and process cheeses a sharp drop in steady shear viscosity was noticed between 1~10 s-1 shear rate range. The Cox-Merz rule was not applicable for these cheese samples.

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Ma, Wei, Fei Ma, and Rong Guo. "Experimental research on the dynamic instability characteristic of a pressure relief valve." Advances in Mechanical Engineering 11, no. 3 (2019): 168781401983353. http://dx.doi.org/10.1177/1687814019833531.

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This article presents detailed experimental results of the influencing factors of flow rate, set pressure, and inlet pipe length of a pressure relief valve. In order to analyze the influence of different flow rates on the instability characteristics of pressure relief valve, the multi-stage output of pump flow is realized. In terms of modeling, we investigated the theory concerning instability in the system: the 3% rule boundary. Data analyses on typical stable, cycling, and chatter instability conditions are conducted. The stable boundaries of the 3% rule and the quarter-wave model are drawn, which are consistent with the experimental results.

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Zhao, Wenshuang, Nan Jiang, Xinkai Yu, Yunhai Chen, and Xinke Zhao. "A Correlation Analysis Method for Geographical Object Flows from a Geoeconomic Perspective." Sustainability 14, no. 15 (2022): 9085. http://dx.doi.org/10.3390/su14159085.

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Geographic object flow is the reason behind the relationship of geographic units. There are interactions in the process of dynamic change of a geographic object flow, and its regularity, which can reflect the relationship or pattern of geographic units in a region. In this paper, an association rule mining method for the geographic object flow linkage process is studied from a geoeconomics perspective. Additionally, an association rule mining algorithm with hierarchical constraints is proposed. Data segmentation is performed according to the time series characteristics of geographic object flow data. The basic attributes for the association rule mining are determined based on the basic parameters of geographic object flows, and a database for the association rule mining is formed according to the characteristics of the hierarchical structure of the geographic object flows. Based on the obtained data, the association rule mining algorithm with hierarchical constraints obtained using a parent–child matrix is improved by adding the Apriori algorithm. With the Indo-Pacific region as an example, the trade flow association rules for 25 countries in the region from 2010 to 2021 are selected. In addition, a mathematical statistical analysis of the strongly associated mined trade flows and geoeconomic factors is conducted in terms of both a basic feature analysis of trade flow associations and a country-oriented trade flow association analysis by considering domain knowledge. The effectiveness of the method has been evaluated from various perspectives such as correlation analysis, mathematical statistics, and comparison with the findings of existing studies and proved the validity of the method.

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Tian, Jun-fang, Zhen-zhou Yuan, Bin Jia, and Wang Tao. "Dynamic Congested Traffic States of Density Difference Lattice Hydrodynamic Model with On-Ramp." Discrete Dynamics in Nature and Society 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/941238.

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The density difference lattice hydrodynamic model with on-ramp is proposed. Stochastic and deterministic rules for the on-ramp flow entering into the main road are designed. Under the stochastic rule, various empirical spatiotemporal patterns can be well reproduced, such as the pinned localized cluster (PLC) and homogeneous synchronized traffic (HST). Under the deterministic rule, four new types of congested traffic states, such as the stationary oscillatory congested traffic (OCT) upstream of on-ramp and the stationary and localized OCT emerging in HST, are identified for the first time. Comparisons with the macroscopic speed gradient model are carried out, and some advantages of our model are clarified. To our knowledge, it is the first research showing that the lattice hydrodynamic model could reproduce various congested patterns induced by the on-ramp system.

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Rozprawy doktorskie na temat "Dynamic Flow Rule"

Jackson, Michael. "Interfacial instability analysis of viscous flows in a Hele-Shaw channel." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/212417/1/Michael_Jackson_Thesis.pdf.

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When a less viscous fluid displaces a more viscous fluid inside a quasi-two-dimensional channel, the interface separating the two fluids can become highly unstable and perturbed. By assuming that the more viscous fluid is finite in volume, this thesis uses analytical and computational methods to investigate the effect of two fluid interfaces. The results could have implication in fields such as oil extraction, geology, and advanced manufacturing.

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cheng, kaung-cheng, and 鄭廣成. "A Fuzzy Neural Network Based Fuzzy Rule Extraction Algorithm for Dynamic Work Flow Control of an automated Distribution Center." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/59907915208715161283.

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碩士 國立雲林科技大學 工業工程與管理研究所碩士班 91 The main purpose of this research is to figure out how enterprises deal with customers’ uncertain demands and unexpected variables by the lowest cost, greatest capacity and most reliable products during the process of deciding the best marketing channels. A theory called “ Fuzzy Robust Design Framework ” is researched through the perspective of the supply chain. The framework will indicate that how enterprises control overall situations and reach future goals ideally through making accurate decisions of marketing channels by Fuzzy selections and adapted structures by Robust Optimization. Ultimately, the result of this research will point out that the framework of marketing channels established by supply chain can offer enterprises great assistance and flexibility to cope with any sudden changes resulted from consumers and market. This study is to satisfy most of customer under limit resources, and budget but focus on the path of vehicle delivery and receive.The study is focused construct the mathematic model for dynamic vehicle routing and problem. It’s to satisfy most customers’ require that demand uncertainty of delivery or collection goods while minimizing the total cost (the distance traveled and ignore customer fine) the limitations of available resource. The set of customers is partitioned into two subsets: line haul customers where a given quantity of goods is delivered from a central deport, and backhaul customers where a given quantity of goods is collected and transported to the deport. We consider fuzzy logic describe customer elect elements for fitly real world condition objectively.

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Fu, Shu-Pei, and 傅書珮. "A Simulation Study of Dispatching Rules in Flow Shops with Dynamic Workers’ Learning Effects." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/01030798122514854521.

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碩士 朝陽科技大學 工業工程與管理系碩士班 96 With the trend of lower birth rate and higher education background in recent years, the problem of worker shortage becomes more severe for industry. Training workers to learn more skills and becoming so-called multitasking workers is one major strategy adopted by many companies. Therefore, how to dynamically arrange workers to adequately execute production plan is an important issue for production management. A lot of research focused on the effectiveness of dispatching rules in flow shops, however, only a few considering the effects of learning and forgetting of workers. Therefore, the purpose of this study is to evaluate dispatching rules under several performance measurements while taking into account the workers’ learning and forgetting effects. This study utilizes Systems Simulation and Design of Experiments to model the flow shop with dynamic workers as well as setup an appropriate experimental design to enable further statistical inferences. Factors considered in this study including worker assignment, dispatching rules, number of stations, system utilization, distribution types of processing time, and learning and forgetting effects. Simulation results are collected according to three performance criteria, i.e., mean flowtime, maximum flowtime, and work-in-process(WIP). The results show that the learning and forgetting effects of dynamic workers will indeed affect the choice of the best dispatching rule on different performance criteria. However, all in all, no matter what effects of learning and forgetting, SPT rule performs best on both mean flowtime and WIP criteria, while AT or AT-RPT rule has the best results on the maximum flowtime criterion. In addition, this study also performs a sensitivity analysis on the shortage of dynamic workers. The results show only slightly differences on the ranking list of dispatching rules when taking into account the workers’ learning and forgetting effects.

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Książki na temat "Dynamic Flow Rule"

A, Narain, Siginer Dennis A, Kelkar K. M, American Society of Mechanical Engineers. Applied Mechanics Division., and International Mechanical Engineering Congress and Exposition (1994 : Chicago, Ill.), eds. Two fluid flows--with or without phase change: Presented at 1994 International Mechanical Engineering Congress and Exposition, Chicago, Illinois, November 6-11, 1994. American Society of Mechanical Engineers, 1994.

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Kalinowski, Thomas. Why International Cooperation is Failing. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198714729.001.0001.

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Ten years after the global financial crisis of 2008/9 there is widespread scepticism about the ability to curb volatile financial markets and international cooperation in general. Changes in the global rules of finance discussed in the G20 during the last ten years remain limited, and it is doubtful whether they are suitable to help mitigate and manage future crisis to come. This book argues that this failure is not simply the result of bad leadership and clash of national egoisms but rather the result of a much more fundamental competition of capitalisms. US finance-led, EU integration-led, and East Asian state-led capitalism complement each other globally, but at the same time they have conflicting preferences on how to complement their distinct domestic regulations at the international level. This interdependence of capitalist models is both relatively stable but also prone to crisis caused by volatile financial flows, global economic imbalances, and ‘currency wars’. This book shows that regulating international finance is not a technocratic exercise of finetuning the machinery of international institutions but a political process depending on the dynamic of domestic institutions and power relations. If we want to understand international economic cooperation, we need to understand the diversity of domestic dynamics of the different models of capitalism, not just concerning financial markets but also in connected areas such as corporate structure, labour markets, and welfare regimes. Ultimately, international cooperation is both desirable and possible, but needs to go hand in hand with fundamental changes at the domestic level.

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Lally, Jagjeet. India and the Silk Roads. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780197581070.001.0001.

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India and the Silk Roads is a global history of a continental interior, the first to comprehensively examine the textual and material traces of India’s caravan trade with central Asia. But what was the fate of these overland connections in the ages of sail and steam? This book brings the world of caravan trade to life—a world of merchants, mercenaries, pastoralists and pilgrims, but also of kings, bureaucrats and their subjects in the countryside and towns. Their livelihoods did not become obsolete with the advent of ‘modern’ technologies and the consequent emergence of new global networks. Terrestrial routes remained critically important, not only handling flows of goods and money, but also fostering networks of trade in credit, secret intelligence and fighting power. With the waning of the Mughal Empire during the eighteenth century, new Indian kingdoms and their rulers came to the fore, drawing their power and prosperity from resources brought by caravan trade. The encroachment of British and Russian imperialism into this commercial arena in the nineteenth century gave new significance to some people and flows, while steadily undermining others. By showing how no single ruler could control the nebulous yet durable networks of this trading world, which had its own internal dynamics even as it evolved in step with global transformations, this book forces us to rethink the history of globalisation and re-evaluate our fixation with empires and states as the building blocks of historical analysis.

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Części książek na temat "Dynamic Flow Rule"

Lee, Sang Ho, Yasuji Ryu, Koichi Hayano, and Hiroyuki Yoshida. "Continuous-Time Flow-Limited Modeling by Convolution Area Property and Differentiation Product Rule in 4-Phase Liver Dynamic Contrast-Enhanced CT." In Abdominal Imaging. Computation and Clinical Applications. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-41083-3_29.

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Seer, Stefan, Norbert Brändle, and Dietmar Bauer. "Design of Decision Rules for Crowd Controlling Using Macroscopic Pedestrian Flow Simulation." In Pedestrian and Evacuation Dynamics 2008. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-04504-2_52.

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Olmos, Karina, and Eelco Visser. "Composing Source-to-Source Data-Flow Transformations with Rewriting Strategies and Dependent Dynamic Rewrite Rules." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/978-3-540-31985-6_14.

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Culotta, Fabrizio. "A Prospective Sustainability Indicator for Pension Systems." In Proceedings e report. Firenze University Press, 2021. http://dx.doi.org/10.36253/978-88-5518-461-8.39.

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This work proposes an informative system to monitor pension systems by integrating pension and labor market statistics. This more comprehensive system is used to build an indicator to measure prospectively the sustainability of pension systems. The set of indicators is divided into two groups, each tracking pension contributions and payments flows. Each flow is composed by the product of three statistics: a statistics for the extensive margin, i.e. how many contributors and retirees, one for the intensive margin, i.e. how much workers contribute and pensioners receive pensions, and one for the durational margin, i.e. for how long workers contribute and retirees receive pensions. As such, the statistical content is coherent with the set of pension indicators considered by Eurostat and OECD. Statistics are extracted from Eurostat database and ensure cross-country comparability. The advantage of this approach is twofold. Firstly, it allows reflecting specificities of each pension regimes, characterized by own specific contribution rules and pension formulas, without explicitly account for them. Secondly, it allows to relate the assessment of sustainability of pension systems to the dynamics of labor markets since it explicitly takes into account the distribution of wages, the duration of working life, the distribution of old-age pensions and the life expectancy at retirement. An application on a pool of seven European countries (Austria, Finland, France, Germany, Italy, the Netherlands) is provided for the period 2015 - 2019. The indicator for the prospective sustainability of pension systems is compared across two other alternatives to stress the contribution of each margin. These alternatives are then compared with a benchmark indicator and their correlations are measured.

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Bae, Hyerim. "Inter-Workflow Patterns in Logistic Processes." In Handbook of Research on Complex Dynamic Process Management. IGI Global, 2010. http://dx.doi.org/10.4018/978-1-60566-669-3.ch013.

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In logistic environments, a process, in that it manages the flow of materials among partners, inherently involves more than one organization. In this regard, a logistic process can be considered as a combined process consisting of multiple sub processes, each of which is managed by a single participant. In achieving systematic management of a logistic process, traditional Business Process Management (BPM) cannot be used for the entire flow, since it lacks the ability to manage interactions among partners. In this paper, then, we propose inter-workflow patterns that represent the relations among separate processes. We specify the inter-workflow patterns between processes, which patterns enable the generation of ECA (Event-Condition-Action) rules to control the execution of the logistic process. A rule engine can then take charge of managing the interactions among processes. A prototype system was developed for the purpose of demonstrating the effectiveness of our approach.

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Pang, Chung-Yeung. "A Cross-Platform Architecture with Intelligent Agents for Dynamic Processes and Services Composition." In Achieving Enterprise Agility through Innovative Software Development. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-8510-9.ch003.

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To meet business demands, enterprise software systems are required to be more dynamic, flexible and adaptive. Business processes must often be context-aware. Things get complicated when enterprise software systems, after a decade of evolution, comprise heterogeneous platforms and different technological stacks. This chapter presents the design and implementation of a cross-platform architecture with intelligent agents for dynamic business rules, process flows and services composition. The architecture includes an Enterprise Service Bus for service integration. Service agents are used to handle services. A Central Intelligent Agent that contains a Prolog-style rule-based engine is designed to execute business rules and processes. These agents are implemented in both Java and COBOL. Business process flows are completely rule- and context-driven. The services and components for the business processes are dynamically constructed. The proposed architecture and programming model enables fast prototyping and rapid development in an agile development process across different platforms.

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Box, Paul. "Spatial Units as Agents: Making the Landscape an Equal Player in Agent-Based Simulations." In Integrating Geographic Information Systems and Agent-Based Modeling Techniques for Understanding Social and Ecological Processes. Oxford University Press, 2002. http://dx.doi.org/10.1093/oso/9780195143362.003.0009.

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Agent-based modeling has generated considerable interest in recent years as a tool for exploring many of the processes that can be modeled as bottom up processes. This has accelerated with the availability of software packages, such as Swarm and StarLogo, that allow for relatively complex simulations to be constructed by researchers with limited computer-programming backgrounds. A typical use of agent-based models is to simulate scenarios where large numbers of individuals are inhabiting a landscape, interacting with their landscape and each other by relatively simple rules, and observing the emergent behavior of the system (population) over time. It has been a natural extension in this sort of a study to create a landscape from a “real world” example, typically imported through a geographic information system (GIS). In most cases, the landscape is represented either as a static object, or a “stage” upon which the agents act (see Briggs et al. , Girnblett et al., and Remm). In some cases, an approximation of a dynamic landscape has been added to the simulation in a way that is completely exogenous to the population being simulated; the dynamic conditions are read from historical records, in effect “playing a tape” of conditions, to which the population reacts through time (such as Dean et al. and Kohler et al. ). There has also been many simulations where dynamic landscape processes have been modeled through “bottom up” processes, where localized processes in landscapes are simulated, and the global emergent processes are observed. Topmodel is a Fortran-based implementation of this concept for hydrologic processes; and PCRaster has used similar software constructs to simulate a variety of landscape processes, with sophisticated visualization and data-gathering tools. In both of these examples, the landscape is represented as a regular lattice or cell structure. There are also many examples of “home grown” tools (simulations created for a specific project), applying cellular automata (CA) rules to landscapes to simulate urban growth, wildfire , lava flows, and groundwater flow. There are also examples of how agent-based modeling tools were employed to model dynamic landscape processes such as forest dynamics, i.e., Arborgames. In these models the landscape was the object of the simulation, and free-roaming agents were not considered as part of the model.

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Stock, Mark. "Flow Simulation with Vortex Elements." In Biologically-Inspired Computing for the Arts. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-4666-0942-6.ch002.

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While fluid flow is a ubiquitous phenomenon on both Earth’s surface and elsewhere in the cosmos, its existence, as a mathematical field quantity without discrete form, color, or shape, defies representation in the visual arts. Both physical biology and computational physics are, at their roots, very large systems of interacting agents. The field of computational fluid dynamics deals with solving the essential formulas of fluid dynamics over large numbers of interacting elements. This chapter presents a novel method for creating fluid-like forms and patterns via interacting elements. Realistic fluid-like motions are presented on a computer using a particle representation of the rotating portions of the flow. The straightforward method works in two or three dimensions and is amenable to instruction and easy application to a variety of visual media. Examples from digital flatwork and video art illustrate the method’s potential to bring space, shape, and form to an otherwise ephemeral medium. Though the rules are simple, the resulting behavior frequently exhibits emergent properties not anticipated by the original formulae. This makes both fluid simulations and related biological computations deep, interesting, and ready for exploration.

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"Chapter 6: Business Process Flows And Business Rules." In Administering, Configuring, and Maintaining Microsoft Dynamics 365 in the Cloud. De|G Press, 2017. http://dx.doi.org/10.1515/9781547400065-006.

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Gallo, Patricia, and Maria das Graças Pinto Coelho. "Pedagogical Guidelines to Introduce Transmedia Learning Into the Classroom." In Journalism and Ethics. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8359-2.ch049.

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Transmedia learning has been adopted as a theoretical and practical approach aimed at young students learning with technologies. It allows for open, dynamic, and engaging teaching and learning, integrating the school curriculum with life and sociocultural demands in a continuous information flow. This paper presents some pedagogical guidelines for introducing transmedia learning into the classrooms. For this, we will take into account the Brazilian context regarding the technologies and media available in Brazilian public schools, the media literacy of students and teachers, and the rules derived from the management team.

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Streszczenia konferencji na temat "Dynamic Flow Rule"

Chi-ming Ma, Tai-jung Wu, and Shiow-yang Wu. "A rule-based approach for dynamic adaptation of service flow." In 2012 5th IEEE International Conference on Service-Oriented Computing and Applications (SOCA). IEEE, 2012. http://dx.doi.org/10.1109/soca.2012.6449444.

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Yang, Gyeongsik, Bong-yeol Yu, Wontae Jeong, and Chuck Yoo. "FlowVirt: Flow Rule Virtualization for Dynamic Scalability of Programmable Network Virtualization." In 2018 IEEE 11th International Conference on Cloud Computing (CLOUD). IEEE, 2018. http://dx.doi.org/10.1109/cloud.2018.00051.

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Haq, Faizul, Adeeba Naaz, T. V. Pavan Kumar Bantupalli, and Kotaro Kataoka. "DRL-FTO: Dynamic Flow Rule Timeout Optimization in SDN using Deep Reinforcement Learning." In AINTEC '21: Asian Internet Engineering Conference. ACM, 2021. http://dx.doi.org/10.1145/3497777.3498549.

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Yang, Xiaofang, and Yanping Nie. "Study on the Traffic Flow under Keep-Right-Except-to-Pass Rule Based on Dynamic Model." In 2016 3rd International Conference on Information Science and Control Engineering (ICISCE). IEEE, 2016. http://dx.doi.org/10.1109/icisce.2016.147.

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Ahmed, Qadeer, Haiwei Cai, Giorgio Rizzoni, and Longya Xu. "Modeling and Control of a Novel Power Split Hybrid Electric Vehicle." In ASME 2014 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/dscc2014-5975.

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This paper presents a novel dual-clutch, transmission-less hybrid electric powertrain architecture using Dual Mechanical Port Machine (DMPM). The proposed architecture offers the vehicle to operate in four different modes i.e. charge depleting mode, charge sustaining mode, highway mode and braking mode. Power/energy flow in each operating mode is explored and operating characteristics of each prime mover in all four modes are analyzed. A detailed system level modeling is conducted for the proposed powertrain. The power split HEV offers a variety of control problems to insure its optimal performance. In this paper, a rule based control has been designed to meet some of the outlined control objectives. The simulation results show that the proposed HEV architecture with a rule based energy management scheme offers high fuel efficiency as compared to its conventional counterpart.

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Mahalingam, Vijay Kumar. "A Simulation Study of Flexible Manufacturing System Using Dynamic Scheduling Approach." In ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/esda2014-20484.

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This paper presents a simulation study aimed at evaluating the performances of a typical Flexible manufacturing system (FMS) problems in terms of make span, average flow time, average delay time at local buffers and average machine utilization, subject to different control strategies which include routing flexibilities and dispatching rules. The routing strategies under evaluation are ‘No Alternative Routings (NAR)’; ‘Alternative Routings Dynamic (ARD)’; and ‘Alternative Routings Planned (ARP)’. The ARP rule was introduced into the FMS and coded with C++ program. The above routing strategies are combined with five dispatching rules and studied in different production volumes. Since an FMS usually deals with a variety of products, effects of changing the part mix ratio are also discussed. Simulation study was performed by using ARENA software. Finally results indicate that the ‘alternative routings planned’ strategy outperforms other routing strategies in general.

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Suzuki, Satomi, Dave Stern, and Tom Manzocchi. "Using Association Rule Mining and High-Dimensional Visualization to Explore the Impact of Geological Features on Dynamic Flow Behavior." In SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 2015. http://dx.doi.org/10.2118/174774-ms.

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Brown, Andrew M., R. Benjamin Davis, and Michael K. DeHaye. "Implementation of Speed Variation in the Structural Dynamic Assessment of Turbomachinery Flow Path Components." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94890.

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During the design of turbomachinery flow path components, the assessment of possible structural resonant conditions is critical. Higher frequency modes of these structures are frequently found to be subject to resonance, and in these cases, design criteria require a forced response analysis of the structure with the assumption that the excitation speed exactly equals the resonant frequency. The design becomes problematic if the response analysis shows a violation of the HCF criteria. One possible solution is to perform “finite-life” analysis, where Miner’s rule is used to calculate the actual life in seconds in comparison to the required life. In this situation, it is beneficial to incorporate the fact that, for a variety of turbomachinery control reasons, the speed of the rotor does not actually dwell at a single value but instead dithers about a nominal mean speed and during the time that the excitation frequency is not equal to the resonant frequency, the damage accumulated by the structure is diminished significantly. Building on previous investigations into this process, we show that a steady-state assumption of the response is extremely accurate for this typical case, resulting in the ability to quickly account for speed variation in the finite-life analysis of a component which has previously had its peak dynamic stress at resonance calculated. A technique using Monte Carlo simulation is also presented which can be used when specific speed time histories are not available. The implementation of these techniques can prove critical for successful turbopump design, as the improvement in life when speed variation is considered is shown to be greater than a factor of two.

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Galerkin, Y., A. Rekstin, K. Soldatova, and A. Drozdov. "Gas Dynamic Designs of Centrifugal Compressors for Gas Industry." In ASME 2015 Gas Turbine India Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gtindia2015-1215.

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Centrifugal compressors for gas industry consume huge amount of energy. As a rule, they are single-shaft, with two or more stages and with comparatively low pressure ratio. Compressors operate at low Mach numbers and high Reynolds numbers. Two design parameters influence mostly stage performances. Stage flow coefficient optimal values lie in range 0.060–0.11. Chosen number of stages establishes value of this coefficient if speed of a rotor rotation is fixed. Design loading factor optimal values are 0.42–0.52. It corresponds to high efficiency, shifts a surge limit far from a design point and makes power maximal in a design point. Some considerations about impeller and diffuser types are presented. Design procedure consists on application of the Universal modeling programs for main dimensions optimization and performance calculations. Q3D non-viscid velocity diagrams are analyzed for optimization of blade configuration. Samples of design are presented, 32 MW single-stage pipeline compressor stage with record efficiency included.

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Salehi, Rasoul, and Anna G. Stefanopoulou. "Optimal Exhaust Valve Opening Control for Fast Aftertreatment Warm Up in Diesel Engines." In ASME 2018 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/dscc2018-9178.

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This paper proposes to optimally adjust the exhaust valve opening (EVO) timing for faster selective catalytic reduction (SCR) aftertreatment system warm-up during the cold start phase of the federal test procedure (FTP). Early termination of the power stroke by EVO timing advance increases the engine exhaust gas temperature. It, on the other hand, causes exhaust flow rate reduction that decreases the coefficient of the heat transfer from the exhaust gas to the catalyst. The competing effects along with the fuel consumption increase associated with early EVO need careful consideration and the optimal EVO timing is a load-dependent balance of all these effects. This careful balance is achieved in this paper by dynamic programing (DP). Specifically, the minimum time to light-off (TTL) is formulated and applied to the cold phase of the FTP. A high fidelity detailed and verified engine and aftertreatment model is effectively simplified to enable utilizing computationally expensive DP optimization algorithm. Optimization results indicate that advancing the EVO reduces the TTL for the SCR catalyst from 659 s to 500 s, a 24% reduction. This fastest possible increase in the SCR temperature is shown to be with an expense of 4.1% increase in the fuel consumption. The results are dependent to the target light-off temperature and the load profile. Assuming a specific light-off temperature and the FTP, possible rule-based scenarios for online optimization are discussed.

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Raporty organizacyjne na temat "Dynamic Flow Rule"

Hertel, Thomas, Terrie Walmsley, and Ken Itakura. Dynamic Effects of the "New Age" Free Trade Agreement between Japan and Singapore. GTAP Working Paper, 2001. http://dx.doi.org/10.21642/gtap.wp15.

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As manufacturing tariffs have fallen worldwide, the focus of free trade agreements has shifted towards other issues, including: rules governing foreign investment, e-commerce regulations, trade in services, harmonization of technical standards, sanitary and phyto-sanitary regulations, and the streamlining of customs procedures. Japan and Singapore are undertaking negotiations over this kind of "new-age" FTA. The purpose of this paper is to evaluate the impact of the FTA on production, consumption, trade, international investment flows, GDP and welfare. We use a modified version of the dynamic GTAP model, which is well-suited to capturing the impact of this new-age FTA over both the short run and the longer run.

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Relationship Between ‘Civil Society’ and ‘Democratic Freedoms’. Institute of Development Studies, 2022. http://dx.doi.org/10.19088/k4d.2022.086.

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Notwithstanding the point that definitions of ‘civil society’ and ‘democracy’ are themselves actively debated, this rapid review defines democracy as ‘liberal democracy’, which goes beyond elections to include liberal components such as equality before the law, individual liberties, rule of law, and independent judiciary and legislature that constrains the executive (Grahn and Lührmann, 2020, p.8). Civil society is defined as “an organizational layer of the polity that lies between the state and private life composed of voluntary associations of people joined together in common purpose” (Coppedge et al. 2016, p.413). Thus, this rapid review seeks to find out what evidence is there on the relationship between civil society and democratic freedoms? The overall sense from the vast array of literature that looks at the relationship between civil society and democratic freedoms is that civil society is important for democracy, but there is no “automatic flow” from one to the other. Rather, the relationship is contingent on the nature of civil society, in addition to other dynamic, context-specific factors. Most of the evidence found during this rapid review was in studies that break down this broad topic into smaller sub-questions. They tended to be case studies that look at specific elements of ‘democratic freedoms’ (e.g., human rights, or anti-corruption), focus on specific countries, or were related to specific mechanisms (e.g., collective action) or processes (e.g., democratic regression). Each of these sub-topics is itself a large and contested area of research. According to some scholars, these case studies are overwhelmingly positive about civil society’s relationship to liberal democratic norms and practices. Some studies show that democratic regression occurs where the demands of a highly mobilised civil society cannot be effectively channelled by the party system or occur in contexts characterised by ethnic and regional differences or socio-economic inequalities.

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