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MCHOKeM algorithm with assured bandwidth allocation in DiffServ networks
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作者 Haifeng Du Yang Xiao Kiseon Kim 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2010年第4期531-536,共6页
An active queue management(AQM) algorithm called MCHOKeM is presented,which is borrowed from CHOKeW that draws multi-packets at random from the buffer,the multi-packets are compared with an arriving packet and aband... An active queue management(AQM) algorithm called MCHOKeM is presented,which is borrowed from CHOKeW that draws multi-packets at random from the buffer,the multi-packets are compared with an arriving packet and abandoned if they are from the same flow.But MCHOKeM uses multiple virtual queues for different priority packets and enhances the drawing function by adjusting the maximum number of draws based on the current status of virtual queue length.The number of parameters that MCHOKeM needs to maintain is determined by the number of priority levels being supported by the router,which usually has a small limited value.In order to explain the features of MCHOKeM,an analytical model is used.A series of simulation tests to evaluate the performance are given. 展开更多
关键词 congestion control theory differentiated services(DiffServ) transaction control protocol(TCP) protection fairness analysis.
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Concurrency Control of Single-Level Transaction in WHYMX Object-Oriented Database System
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作者 徐庆云 王能斌 《Journal of Computer Science & Technology》 SCIE EI CSCD 1992年第4期311-315,共5页
The data model of WHYMX complicates transaction management. Traditional locking method is not powerful enough to solve the new problem of concurrency control of WHYMX's transaction. This paper presents a number of... The data model of WHYMX complicates transaction management. Traditional locking method is not powerful enough to solve the new problem of concurrency control of WHYMX's transaction. This paper presents a number of concurrency control algorithms based on the extended locking method. 展开更多
关键词 mode Concurrency control of Single-Level transaction in WHYMX Object-Oriented Database System
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Impacts of Corporate Culture on Merger
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作者 Xiang Xiao Juan Chen 《Chinese Business Review》 2006年第2期28-31,共4页
By studying the cultural background and corporate culture in China, Japan and USA, this paper analyzes the effects of cultural background and corporation culture on the transaction cost and the efficiency of control r... By studying the cultural background and corporate culture in China, Japan and USA, this paper analyzes the effects of cultural background and corporation culture on the transaction cost and the efficiency of control right, thus shows that cultural backgrounds have great impact on merger. This paper further studies the choice and application of the mode of culture combination of the transnational merger. 展开更多
关键词 merger corporate culture the efficiency of control right the transaction cost the mode of culture combination
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Transfer Pricing Regulations of Armenia:Issues with Some of the Current Provisions and Their Possible Solutions
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作者 Andranik Hakobyan 《Belt and Road Initiative Tax Journal》 2024年第1期114-119,共6页
Armenian transfer pricing(TP)regulations are still in the starting period of their application,as the provisions for conducting TP administration have been put into force only since 13 April 2022.Prior to that,the TP ... Armenian transfer pricing(TP)regulations are still in the starting period of their application,as the provisions for conducting TP administration have been put into force only since 13 April 2022.Prior to that,the TP legislation was incomplete due to lack of provisions for effective tax administration.When the legislative amendments took effect,the TP became a separate type of tax audit with its specific features on procedure.Notwithstanding the fact that amendments solved many legislative issues,there were still many problems that emerged while applying the provisions in practice and hence needed to be tackled by further legislative amendments.This article explores some of the current major problems that the Armenian TP regulations face and the possible solutions that might be implemented in the near future. 展开更多
关键词 Transfer pricing Amendment Offshore jurisdiction PE controlled transaction TP documentation
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Transactive control:a framework for operating power systems characterized by high penetration of distributed energy resources 被引量:22
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作者 Junjie HU Guangya YANG +2 位作者 Koen KOK Yusheng XUE Henrik W.BINDNER 《Journal of Modern Power Systems and Clean Energy》 SCIE EI 2017年第3期451-464,共14页
The increasing number of distributed energy resources connected to power systems raises operational challenges for the network operator, such as introducing grid congestion and voltage deviations in the distribution n... The increasing number of distributed energy resources connected to power systems raises operational challenges for the network operator, such as introducing grid congestion and voltage deviations in the distribution network level, as well as increasing balancing needs at the whole system level. Control and coordination of a large number of distributed energy assets requires innovative approaches. Transactive control has received much attention due to its decentralized decision-making and transparent characteristics. This paper introduces the concept and main features of transactive control, followed by a literature review and demonstration projects that apply to transactive control. Cases are then presented to illustrate the transactive control framework. At the end, discussions and research directions are presented, for applying transactive control to operating power systems, characterized by a high penetration of distributed energy resources. 展开更多
关键词 Distributed energy resources Distribution system operation Smart grids Transactive control
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Ensemble-based uncertainty quantification for coordination and control of thermostatically controlled loads 被引量:1
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作者 Weixuan Li Jianming Lian +1 位作者 Dave Engel Hong Wang 《Journal of Control and Decision》 EI 2018年第2期148-168,共21页
This work investigates an uncertainty quantification(UQ)framework that analyses the uncertainty involved in modelling control systems to improve control strategy performance.The framework involves solving four problem... This work investigates an uncertainty quantification(UQ)framework that analyses the uncertainty involved in modelling control systems to improve control strategy performance.The framework involves solving four problems:identifying uncertain parameters,propagating uncertainty to the quantity of interest,data assimilation and making decisions under quantified uncertainties.A specific group of UQ approaches,known as the ensemble-based methods,are adopted to solve these problems.This UQ framework is applied to coordinating a group of thermostatically controlled loads,which relies on simulating a second-order equivalent thermal parameter model with some uncertain parameters.How this uncertainty affects the prediction and the control of total power is examined.The study shows that uncertainty can be effectively reduced using the measurement of air temperatures.Also,the control objective is achieved fairly accurately with a quantification of the uncertainty. 展开更多
关键词 Uncertainty quantification ensemble-based method thermostatically controlled loads transactive control smart grid
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Distributed Dispatch of Multiple Energy Systems Considering Carbon Trading 被引量:2
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作者 Yue Xiang Mengqiu Fang +3 位作者 Junyong Liu Pingliang Zeng Ping Xue Gang Wu 《CSEE Journal of Power and Energy Systems》 SCIE EI CSCD 2023年第2期459-469,共11页
As an integrated carrier of energy production,transmission,distribution,conversion,storage,and utilization,multiple energy systems(MESs)have significant low-carbon potential.This paper proposes a hierarchical distribu... As an integrated carrier of energy production,transmission,distribution,conversion,storage,and utilization,multiple energy systems(MESs)have significant low-carbon potential.This paper proposes a hierarchical distributed dispatch model of MESs considering carbon trading,which is composed of the lower autonomous operation level of each MES and the upper coordinated control level.Different carbon emission sources are considered,including combined heat and power(CHP)units,gas boilers,and power to gas(P2G)devices.The transactive control(TC)mechanism is used to solve the model by introducing a virtual price signal.In the case study based on a 3-MES system,the effectiveness of the proposed distributed method is proved by comparison with a centralized algorithm.Meanwhile,the impacts of different carbon prices on MESs with different resource endowments are analyzed from the aspects of scheduling results,carbon emissions,clean energy consumption rate,and comprehensive operating costs. 展开更多
关键词 Carbon trading distributed optimal dispatch transactive control multiple energy systems
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