The first stage of the RTM process concerns the preforming of the part. During the preforming of multilayered reinforcements, frictions between the plies occur. An experimental device designed to analyse the ply/ply, ply/tool and yarn/yarn frictions has been set up. Specific contact behaviour for ply/ply friction is directly related to shocks taking place between overhanging yarns of each sampl...

An experimental device of dry preform stamping was designed and carried out for the first stage of the RTM process. This tool was developed to test the feasibility to obtain specific double curved shape constituted with dry fabric reinforcement. Optical strain measurement can quantify defects on the composite piece. It is just enough to change the desired punch-die set of the preform. This tool...

In this article, we restudy the mass spectrum of ground state triply-heavy baryon states with QCD sum rules by carrying out operator product expansion up to vacuum condensates dimension 6 in a consistent way and preforming novel analysis. It is first time take into account three-gluon for states.

Preforming a tumor ablation procedure involves precisely positioning an ablation probe in a tumor. Limited sensing accuracy and variations in tissue properties require that surgeons often identify when they have correctly positioned the probe through their sense of touch. In this paper, supervised learning is used to detect the point at which a needle has entered a tumor using a combination of ...

Compared to autoclave-cured prepreg, liquid composite moulding (LCM) is a cost-effective alternative produce advanced composites, thanks the less-expensive intermediate materials, lower capital investment and shorter cycle time. A separate preforming step typically required within process chain convert 2D fabric blanks into complex 3D geometries before moulding. Numerical models are therefore i...

A major barrier to high-rate manufacture of non-crimp fabric (NCF) preforms is the relatively low volume research evaluating multiple ply forming strategies. This study presents an extension distributed magnetic clamping (DIMAC) method towards establishing flexible process control measures for forming. measure wrinkling was devised allow comparison across different stack thicknesses and distrib...

Molecular dynamics simulation (MDS) is a powerful technology for investigating evolution of target proteins, and it used widely in various fields from materials to biology. This mini-review introduced the principles, main preforming procedures, advances MDS, as well its applications on studies conformational allosteric proteins especially that mechanosensitive integrins. Future perspectives wer...