SIMULATION OF OPERATION OF PNEUMATIC COMPENSATOR WITH QUASI-ZERO STIFFNESS IN THE ELECTRIC CENTRIFUGAL SUBMERSIBLE PUMP UNIT

Simulation of operation of pneumatic compensator with quasi-zero stiffness in the electric centrifugal submersible pump unit

The ECSPU pneumatic compensators with quasi-zero stiffness are proposed.The pneumatic compensator with quasi-zero stiffness is suggested to be made in the form of pneumatic spring assemblies having a power characteristic with a positive stiffness working area and a set of successively connected Belleville springs and a power characteristic with a w

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Broadening the Berlin definition of ARDS to patients receiving high-flow nasal oxygen: an observational study in patients with acute hypoxemic respiratory failure due to COVID-19

Abstract Background High-flow nasal oxygen (HFNO) is increasingly used in patients with acute hypoxemic respiratory failure.It is uncertain whether a broadened Berlin definition of acute respiratory distress syndrome (ARDS), in which ARDS can be diagnosed in patients who are not receiving ventilation, results in similar groups of patients receiving

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Thiol-based redox signaling in the nitrogen-fixing symbiosis

In nitrogen poor soils legumes establish a symbiotic interaction with rhizobia that results in the formation of root nodules.These are unique plant organs where bacteria differentiate into bacteroids, which express the nitrogenase enzyme complex that reduces atmospheric N2 to ammonia.Nodule metabolism requires a tight control of the concentrations

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Economic freedom index and stock returns in Malaysia

The objective of this study is to investigate the relationship between cga 200 to cga 510 adapter economic freedom index and stock return in the Kuala Lumpur Stock Exchange, Malaysia for the period, 1995 to 2013.The analysis is conducted within the framework of Capital Asset Pricing Model (CAPM), while using the pooled ordinary least square as the

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