According to the unique problem of sample data in ash prediction model based on near infrared spectroscopy, an optimization method was proposed.Principal component analysis method is used for eliminating abnormal samples in coal sample set and extracting feature information of coal spectrum.A double-level clustering method is presented which integr
This paper describes the Charter on the preservation of the digital heritage and it also presents the five main printing technologies, FDM (Fused Deposition Modeling), SLA (Stereo Lithography Apparatus), DLP (Digital Light Processing), LCD (Liquid Crystal Display) and SLS (selective laser sintering) technology.Besides, It presents a methodology to
Mediation analysis is a useful tool to study the mechanism of how a treatment exerts effects on the outcome.Classical mediation analysis requires a product sequential ignorability assumption to rule out cross-world reliance of the potential outcome of interest on the counterfactual mediator in order to identify the natural direct and indirect effec
We consider an axisymmetric inverse heat conduction problem of determining the surface temperature from a fixed location inside a cylinder.This problem is ill-posed; the solution canon imageclass mf227dw (if it exists) does not depend continuously on opheliasmuse.com the data.A special project method—dual least squares method generated by the