FITNESS FOR SERVICE AND RELIABILITY OF MATERIALS FOR MANUFACTURING COMPONENTS INTENDED FOR DEMANDING SERVICE CONDITIONS IN THE PETROCHEMICAL INDUSTRY

Fitness for Service and Reliability of Materials for Manufacturing Components Intended for Demanding Service Conditions in the Petrochemical Industry

A methodology has been developed to quantitatively assess the suitability of use and fitness for service of candidate materials using a novel approach that includes multiple perspectives.As a case study, a carbon steel pipe has been selected for operation in the petrochemical sector.The materials studied were the following: American Petroleum Insti

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Painful schwannoma of scalp: A case report

Schwannoma, also known as neurilemmoma, is a benign neoplasm of Schwann cells of the cranial or peripheral nerve sheath.Scalp involvement 7-04 N has been reported in 25% of patients with extracranial head and neck schwannomas, which can be misdiagnosed clinically as epidermal cyst or lipoma.In this article, we report a 32-year-old male presenting w

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Leber Hereditary Optic Neuropathy: Do Folate Pathway Gene Alterations Influence the Expression of Mitochondrial DNA Mutation?

"nBackground: Leber hereditary optic neuropathy (LHON) is an inherited form of Light Guards bilateral optic atrophy leading to the loss of central vision.  The primary cause of vision loss is mutation in the mitochondrial DNA (mtDNA), however, unknown secon­dary genetic and/or epigenetic risk factors are suggested to influence

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At-sea observations of the spring migration and pair bonding of ivory gulls (Pagophila eburnea) around Svalbard and East Greenland

Because of logistical constraints little previous information exists on ivory gulls (Pagophila eburnea) in the waters around Svalbard and the east coast of Greenland in late winter/early spring.The Swedish Arctic Ocean 2002 expedition investigated these areas at that time of year and in this paper I report on the observations of ivory gulls made du

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