nowadays, compressible flow transmission pipelines are used in many industrial processes. pipelines in chemical processes, gas turbine power plants, natural gas transmission lines, and high pressure steam transmission pipelines are some industrial examples. therefore, learning the manner of treatment of a transient compressible fluid flow in pipelines with junctions and branches is important. i...

A procedure for producing a design of a pipelined attached processor is described. It assumes that a set of algorithms and their frequencies of execution are spec-iied. Then it determines designs that tend to minimize the execution time-cost product and execution time 2-cost product, using gradient methods involving steepest descent. The designs are produced by allocating hardware subsystems su...

Optimal control, prevention and investigation of accidents, and detection of discrepancies in estimated gas supply and distribution volumes are relevant problems of trunkline operation. Efficient dealing with these production tasks is based on the numerical recovery of spacetime distribution of nonisothermal transient flow parameters of transmitted gas mixtures based on fullscale measurements i...

At the stages of maintenance and repair pipeline systems, there is a need to use flameless cutting in existing pipelines, particular: when it necessary connect intake chambers start cleaning pistons, during with complete replacement pipe body without stopping transportation product. Also, fireless effectively used branch pipelines development systems. One progressive directions improving method...

We present a lightweight, user-centred approach for document navigation and analysis that is based on an ontology of text mining results. This allows us to bring the result of existing text mining pipelines directly to end users. Our approach is domain-independent and relies on existing NLP analysis tasks such as automatic multi-document summarization, clustering, question-answering, and opinio...

Pipelines carry different types of petroleum products from production areas to long-distance terminals. This paper introduces a novel Mixed Integer Linear Programming (MILP) based on a continuous time representation for scheduling a multi-product pipeline system connecting a unique refinery to several distribution centers where the mid-terminals are able to both inject product into the pipeline...

determination of allowable free span length plays a crucial role in design of offshore pipelines. the seabed intervention cost and safety of an offshore pipelines project are largely influenced by pipelines free spanning during the project life time. different criteria are proposed by both the current designing guidelines and researchers there is however lack of comprehensive assessment of inde...

Geological conditions along long distance pipelines are complex. In consideration of differences in elevation and terrain obstacles, long distance pipelines are commonly laid through tunnels. Oil and gas pipelines are often laid side by side to reduce construction costs and minimize geological impact. The layout and construction of parallel oil and gas pipelines are more complex than those of s...