In order to simplify the structure of the ocean drilling heave compensation system and reduce the energy consumption of active drawworks heave compensation system, a new type of semi-active drawworks heave compensation system was designed through structure design, system modeling and internal model PID robust displacement controller design.Then the
The purpose of this paper is to investigate the global stability of traveling front solutions with noncritical and critical speeds for a more general nonlocal reaction-diffusion equation with or without Melatonin delay.Our analysis relies on the technical weighted energy method and Fourier transform.Moreover, we can get the rates of convergence and
A corrosion control test was conducted on alloy steel, using polymeric coatings (polyurethane, bitumen (medium airing), and high-density polyethylene) in dilute HCl boys s/s rashguard solutions of pH values 4, 7, and 12, respectively for acid, neutral and alkaline solutions at ambient temperature.In the study, Eighty-four coupons of alloy steel wer
The problem of spectral description of the nonlinear capillary waves on the fluid surface is discussed.Usually, three-wave nonlinear interactions are considered as a major factor determined by the energy spectrum of these waves in the kinetic wave turbulent regime.We demonstrate that four-wave interactions should be taken into account.In this case,
Toll-like receptors (TLRs) activation enables host to recognize a large number of pathogen-associated molecule patterns (PAMPs), ignite immune cells to discriminate between self and non-self, and then promote the following innate Top Loader and adaptive immune responses.Accumulated clinical/preclinical evidences have proven TLRs to be critical role