Optimisation of PM scheduling for multi-component systems – a simulated annealing approach Mohammad Doostparast a , Farhad Kolahan b & Mahdi Doostparast c a Iranian Oil Pipeline and Telecommunication Company (IOPTC) , Tehran , Iran b Department of Mechanical Engineering , Ferdowsi University of Mashhad , Mashhad , Iran c Department of Statistics, School of Mathematical Sciences , Ferdowsi Unive...

In order to reduce the carbon emissions of natural gas pipelines, based on background different energy structures, this paper proposes a general low and consumption operation model which is used fine calculate pipeline. paper, an improved particle swarm optimization (NHPSO-JTVAC) algorithm solve optimal scheduling scheme given. Taking parallel pipeline located in western China as example, case ...

This paper describes the current state of Prophet — a system that provides run-time scheduling support for parallel applications in heterogeneous workstation networks. Prior work on Prophet [10][12] demonstrated that scheduling SPMD applications could be effectively automated with excellent performance. Enhancements have been made to Prophet to broaden its use to other application types includi...

The optimal scheduling of crude-oil operation in refineries has been studied by various groups during the past decade, leading to different mixed integer linear programming or mixed nonlinear programming formulations. This paper proposes a new MINLP formulation with an oil residency time constraint and common pipeline transportation that is based on single-operation sequencing (SOS). An effecti...

Two properties of optical transmissions, namely, unidirectional propagation and predictable propagation delay, make it possible to pipeline packet transmissions in alloptical networks. In this paper, we study the problem of scheduling All-to-All Personalized Communication (AAPC) in unidirectional TDM/WDM rings with pipelined transmissions, which can achieve a much higher bandwidth utilization t...

We present our work based on an incremental ETL pipeline for on-demand data warehouse maintenance. Pipeline parallelism is exploited to concurrently execute a chain of maintenance jobs, each of which takes a batch of delta tuples extracted from source-local transactions with commit timestamps preceding the arrival time of an incoming warehouse query and calculates Ąnal deltas to bring relevant ...

The following work proposes a (max,+) optimization model for scheduling operations on an oil seaport considering flexible maintenance activities on valves. The work is based on previous results for the same case study, where fixed maintenance was studied in the framework of scheduling oil transfer operations through a pipeline network. The case study is a Venezuelan seaport for oil export and r...

This paper presents a new power management technique integrated into a multithreaded microcontroller with builtin real-time scheduling schemes. Power management is done by hardware based on the Guaranteed Percentage scheduling scheme. The applied power saving mechanisms are frequency reduction, dynamic voltage scaling and pipeline gating. Our evaluation showed that for a given workload with an ...

This thesis investigates how web search evaluation can be improved using historical interaction data. Modern search engines combine offline and online evaluation approaches in a sequence of steps that a tested change needs to pass through to be accepted as an improvement and subsequently deployed. We refer to such a sequence of steps as an evaluation pipeline. In this thesis, we consider the ev...