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Underground pipelines that transport oil and gas are very important engineering communications worldwide. Some of these underground communications are built and operated in earthquake-prone areas.
Seismic safety or seismic stability of underground pipelines began to be intensively studied since the 1950s.
The research shows that current methods used for calculating stress received by the underground pipelines during an earthquake are incorrect
Since then, a number of methodologies were proposed for calculating stress received by an underground pipeline during an earthquake. The purpose of these methodologies was to make an accurate prediction on the structural stress received by a pipeline during an earthquake, and thus it would allow to decide how resilient the pipeline must be made in the first place. It is important to find a right balance between pipeline cost and its structural resilience.
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IMAGE: The new research shows that current methods used for calculating stress received by the underground pipelines during an earthquake are incorrect. view more
Credit: Peter the Great St.Petersburg Polytechnic University
Underground pipelines that transport oil and gas are very important engineering communications worldwide. Some of these underground communications are built and operated in earthquake-prone areas.
Seismic safety or seismic stability of underground pipelines began to be intensively studied since the 1950s.
Since then, a number of methodologies were proposed for calculating stress received by an underground pipeline during an earthquake. The purpose of these methodologies was to make an accurate prediction on the structural stress received by a pipeline during an earthquake, and thus it would allow to decide how resilient the pipeline must be made in the first place. It is important to find a right balance between pipeline cost and its stru
Researchers from Peter the Great St.Petersburg Polytechnic University (SPbPU) invented a durable and compact radiator for lithium-ion batteries, which in the future can be used for electric vehicles. The radiator was developed using friction stir wel
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Credit: Peter the Great St.Petersburg Polytechnic University
Researchers from Peter the Great St.Petersburg Polytechnic University (SPbPU) invented a durable and compact radiator for lithium-ion batteries, which in the future can be used for electric vehicles. The radiator was developed using friction stir welding technology. The development of the electric transport industry stimulates the search for new solutions in the field of rechargeable batteries with special requirements for energy consumption, weight, dimensions, and safety. These requirements are increasing every year. Its fulfillment can be achieved only by the introduction of new manufacturing technologies. For example, not the most noticeable, but an important part of such a battery is the cooling system. Thus this radiator should be compact, lightweight, and at the same time durable. To create such radiator, we used aluminum alloys and also applied friction stir welding technology says Fedor Isupov, engin
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Universities in emerging economies are improving at a faster rate than universities from developed countries, according to results from the 2021
Times Higher Education rankings.
This stellar performance is being driven by institutions from Pakistan, Russia and China, the latter accounting for an unprecedented clean sweep of the top five positions. China’s Tsinghua University topped the pile for the fourth consecutive year, for added kudos. In the most competitive Emerging Economies Universities Rankings so far, it is a testament to the success of China’s investment in its higher education sector that it becomes the first country or region to achieve the top five positions in this ranking,” said Phil Baty, chief knowledge officer at the publication.