Drafting of Sliver, II

Internal Model Control of Textile Sliver Drafting Process

The paper is focused on modelling and control of an important textile engineering process: the textile sliver drafting process. This process plays a crucial role in textile production chain because low irregularity of drafted sliver is essential for production of high quality yarn. It is shown that this process can be modelled as a nonlinear time delay system with distributed delays. This model...

Time Delay Systems Applications in Textile Industry – Modelling of Sliver Drafting Process

Abstract: The paper deals with an important textile engineering process: the textile sliver drafting process. It is shown that this process can be modelled as a non-linear time delay system with distributed delays. To convert it into a form more suitable for control purposes, this model is linearized and distributed delays are converted into equivalent lumped delay system. An easy to apply meth...

Drafting.

BCFT and Sliver state

We give a comment on the possible rôle of the sliver state in the generic boundary conformal field theory. We argue that for each Cardy state, there exists at least one projector in the string field theory. ∗E-mail address: [email protected] One of the long standing problem in the string theory is the description of the geometry. Generically we do not need the space-time at all to def...

Changes of Sliver Irregularity in

A theoretical calculation is made to simulate the effect of drafting upon the sliver irregularity in two-zone drafting of three-over-three roller system. Two types of slivers, i.e., random sliver and optional sliver are considered. The effects of sliver count, staple fiber length, fineness of fiber, draft distribution between two drafting zones, maximal moving distance and distribution type of ...