نتایج جستجو برای: high pressure turbomachinery
تعداد نتایج: 2350039 فیلتر نتایج به سال:
background: this study was aimed to investigate the association of consuming white rice and potato, as well as the bread type with anthropometric measures and blood pressure (bp) in a national sample of iranian children and adolescents. methods: this nationwide study was conducted in 2011-2012 among 14,880 students, aged 6-18 years, selected by multistage cluster sampling from 30 provinces of i...
conclusions examination of the fasting lipid profile has clinical importance in predicting the efficacy of peg-ifn-α-2b plus rbv combination therapy for patients with hcv g1b even after the discovery of the il28 genotype as a potent predictive factor. objectives to re-examine the significance of lipoprotein profiles on virological response to peg-ifn plus rbv combination therapy in patients wit...
the quality of pressure distribution over the atmosphere of the sea level and geopotential altitude at different atmosphere layers affect on many climate and meteorology phenomena of the earth surface. one of the important meteorology phenomenon is the occurrence of frost phenomenon especially late spring frost. in this surrey, occurring late spring frost days and minimum temperature during the...
background: aflatoxin m1 (afm1) is a toxic compound that could be found in milk and dairy products. afm1 is the principle hydroxylated derivative of aflatoxin b1 (afb1), formed in liver and excreted into the milk in the mammary glands of both human and lactating animals that have been fed with afb1 contaminated diet. to the best of our knowledge, there is no report on stability of afm1 during p...
Part A Fundamentals of Mechanical Engineering Chap. 1 Mathematics for Engineers 2 Mechanics B Applications in 3 Materials Science and Technology 4 Thermodynamics 5 Tribology 6 Design Machine Elements 7 Manufacturing 8 Measuring Quality Control 9 10 Piston Machines 11 Pressure Vessels Heat Exchangers 12 Turbomachinery 13 Transportation Systems 14 Construction Earth Moving Equipment 15 Enterprise...
Turbocharging an engine boosts its power by increasing the amount of input air. This task is accomplished by using the exhaust gas to power a turbine which is engaged with a compressor. The Variable Geometry Turbocharger, VGT is a unique turbocharger that the diffuser vane angle can be changed over a wide range of positions. The mathematics of turbomachinery flow analysis is intensive and uses ...
With increasing design demands of turbomachinery, stochastic flutter behavior has become more prominent and even appears a hazard to reliability safety. Stochastic assessment is an effective measure quantify the failure risk improve aeroelastic stability. However, for complex turbomachinery with multiple dynamic influencing factors (i.e., aeroengine compressor time-variant loads), hard be achie...
Time series patterns analysis had recently attracted the attention of the research community for real-world applications. Petroleum industry is one of the application contexts where these problems are present, for instance for anomaly detection. Offshore petroleum platforms rely on heavy turbomachines for its extraction, pumping and generation operations. Frequently, these machines are intensiv...
The recent improvements in turbomachinery design combined to the unavoidable requirements of kerosene savings require to analyze the exceptional operating regime of bladed disks, for which large deformations and large displacements can occur. It seems then quite appropriate to consider the geometrically nonlinear effects in the computational models dedicated to the analysis of mistuned turbomac...
A simultaneous-approximation term is a non-reflecting boundary condition that usually accompanied by summation-by-parts schemes for provable time stability. While high-order convective flux based on reconstruction often employed in finite-volume method compressible turbulent flow, methods with the property involve either equally weighted averaging or second-order central fluxes. In present stud...
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