In order to increase automotive engine development efficiency and reduce the cost, a simulation model is often used, in this paper, with software AMESim the automotive engine lubrication system model was built to simulate the steady lubricant flow rate and pressure in the system at difference engine speed. Comparison between simulation and measurement on the test bench shows that the simulated results are in good accord with experimental data, the lubricant flow rate deviation is less than 3.5% and the pressure deviation at the measurement points is less than 4.0%, so it can be concluded that the model can be used to simulate the automotive engine lubrication system steady lubricant flow and furthermore optimize the system.
The significant development of artificial neural network architectures has facilitated the increasing adoption of automated music composition models over the past few years. However, most existing systems feature algorithmic generative structures based on hard code and predefined rules, generally excluding interactive or improvised behaviors. We propose a motion based music system, MoMusic, as a AI real time music generation system. MoMusic features a partially randomized harmonic sequencing model based on a probabilistic analysis of tonal chord progressions, mathematically abstracted through musical set theory. This model is presented against a dual dimension grid that produces resulting sounds through a posture recognition mechanism. A camera captures the users' fingers' movement and trajectories, creating coherent, partially improvised harmonic progressions. MoMusic integrates several timbrical registers, from traditional classical instruments such as the piano to a new ''human voice instrument'' created using a voice conversion technique. Our research demonstrates MoMusic's interactiveness, ability to inspire musicians, and ability to generate coherent musical material with various timbrical registers. MoMusic's capabilities could be easily expanded to incorporate different forms of posture controlled timbrical transformation, rhythmic transformation, dynamic transformation, or even digital sound processing techniques.
A mathematic model for simulating wireline formation tester in permeability anisotropic formations is developed in this paper. 3-D finite element method is employed to implement the modeling numerically. Pressure responses in various formations of different permeabilities vs time and distance, as well as isobar contours are computed and analyzed. These studies provide the theoretical foundations for the tool designing and field data interpretation.
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