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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
A painful tradeoff between a number of infected and negative economic impact must be considered before deciding on the lockdown strategy within a city. As national economies continue to crumble, citizens wonder whether their governments did a good job at regulating the lockdown measures.
Credit: Peter the Great St.Petersburg Polytechnic University
A painful tradeoff between a number of infected and negative economic impact must be considered before deciding on the lockdown strategy within a city. As national economies continue to crumble, citizens wonder whether their governments did a good job at regulating the lockdown measures.
Russian city of St. Petersburg is at the frontlines of this ongoing war with Covid-19. To combat this situation effectively, Russian government allocated significant funds for the research. Results followed. Scientists from Peter the Great St.Petersburg Polytechnic University (SPbPU) modified the existing SIR class pandemic prediction model. Now it is better.