Risk assessment of oil pipeline is the core content in the pipeline integrity management. Through risk assessment of oil pipelines, we could know the comprehensive operating condition of the pipelines, identify the dangerous factors of the pipeline and find out the risk section of the pipeline, so as to work out the risk mitigation measures and provide a theoretical basis for integrity assessme...

The increased using of the Internet and its accelerated growth leads to reduced network bandwidth and the capacity of servers; therefore, the quality of Internet services is unacceptable for users while the efficient and effective delivery of content on the web has an important role to play in improving performance. Content distribution networks were introduced to address this issue. Replicatin...

ad hoc networks are multi-hop wireless networks without a pre-installed infrastructure. such networks are widely used in military applications and in emergency situations as they permit the establishment of a communication network at very short notice with a very low cost. video is very sensitive for packet loss and wireless ad-hoc networks are error prone due to node mobility and weak links. h...

Background and aim: Following a correct biopsy protocol is crucial for accurate diagnosis of oral and maxillofacial lesions. Pre-analysis technical errors during preparation and submission of biopsies can jeopardize the diagnostic process and the related treatment plan. The aim of the present study was to evaluate pre-analysis technical errors in the biopsy samples submitted to an oral and maxi...

Birds rely, at least in part, on spatial memory for recovering previously hidden caches but accurate cache recovery may be more critical for birds that forage in harsh conditions where the food supply is limited and unpredictable. Failure to find caches in these conditions may potentially result in death from starvation. In order to test this hypothesis we compared the cache recovery behaviour ...

This study investigates the use of machine-learning approaches to interpret Dissolved Gas Analysis (DGA) data find incipient faults early in oil-impregnated transformers. Transformers are critical pieces equipment transmitting and distributing electrical energy. The failure a single unit disturbs huge number consumers suppresses economic activities vicinity. Because this, it is important that p...

Abstract In North America, one factor shaping petromodernity is the idea that oil offers a solution to very problems it causes. This article examines paradox, focusing on 1950s. It analyzes set of pamphlets from Petroleum Industry School Program were distributed by American Institute (API), trade organization promotes US industry. first describes evolution support for and opposition industry as...