Offshore pipelines and structures require regular marine growth removal inspection to ensure structural integrity. These operations are typically carried out by Remotely Operated Vehicles (ROVs) demand reliable accurate feedback signals for operating the ROVs efficiently under harsh offshore conditions. This study investigates quantifies how sensor delays impact expected control performance wit...

The buckling tendency of an offshore pipeline buried in a liquefiable soil aggravates under earthquake situations. Moreover, to understand the upheaval displacement behavior dynamic loading, it is crucial variation liquefaction potential within bed. Thus, present study, body and its effect on (u) post-shake uplift resistance (Vup) investigated using finite element package called PLAXIS 2D. stud...

The sealing performance of end fittings is very important for offshore oil and gas pipelines. To investigate the sealing behavior of a ring-shaped wedge seal, global and local numerical models of the ring–pipe interaction have been developed based on the finite-element method. First, the sealing process of the ring under pressure is simulated. Second, a criterion for the penetration of fluid pr...

As hydrogen continues to become rather promising for the generation of clean and sustainable energy, effective low‐cost sensors are progressively necessary ensure safety efficiency H‐based energy processes. Although a wide variety gas phase is available, there still lack devices detect, measure, track dissolved hydrogen. Determining its concentration environmentally, economically, phenomenologi...

Buried pipeline systems are commonly used to transport water, sewage, oil, natural gas and other materials. In the conterminous United States, there are about 77,109 km (47,924 miles) of crude oil pipelines, 85,461 km (53,114 miles) of refined oil pipelines and 67,898 km (42,199 miles) of natural gas pipelines (FEMA, 1991). The total length of water and sewage pipelines is not readily available...

Hartmann’s procedure, first described by the French surgeon Henri Albert Hartmann in 1921, is one of the most commonly performed operations. This paper examines the history behind this operation and assesses its significance in modern surgical practice.

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