In this research, artificial neural networks, one of the most common branches of artificial
intelligence, were used to evaluate the diameter of the cotton yarn. The necessary data
were collected and practical tests were carried out. Then, an algori
thm for the artificial
neural network was established, which provides the possibility of determining the yarn
diameter from the input variables, represented by the count and twist yarn. Where after
the creation of many networks, one was selected which gave the lowest error rate.
The majority of known polymer materials are electrically insulating.
But there are some of polymers are intrinsically conducting in
nature, However, it is lacking in process ability, and the scope for
manipulation of electrical and mechanical prop
erties is limited. The
method which used to solve this problem is an addition of a
conductive metal filament into a polymer filament yarn. Which can
be directly integrated into a textile, or can be knitted. So we made
a device able to produce this kind of conductive yarns which
depends on melt spinning technique but with the elimination of
necessary pressure for extrusion. And we were able to produce
samples of copper filament coated with polymeric material (low
density polyethylene).
In the past four decades, the woven fabrics has been subject to inordinate
competition which has primarily come from the fashion (short runs),
knitting, and nonwoven segments. The weaving machinery manufacturers answered
the pressure of competitio
n by concentrating on the design of looms that offered relatively
very high speeds. Obviously, to meet the demands of the higher productivity on the loom,
the material characteristics and the quality and efficiency of the preceding processes also
needed to be improved. And this improvement is doing by encapsulate the yarn with size
film before weaving, by the sizing process which considered as the heart of weaving.
this research is aimed to studying the affective factors of sizing, and define the ideal
values of it. This research reffered to the effect of sizing machine speed on yarn size
witting time and then on its coating percent, other side the rollers squeezing pressure of
sizing machine and sizing solution viscosity affect on yarn size coating percent too which
affecting on its resistance toward weaving operation and usage later, because , the success
of sizing process leads to success the following stages like, weaving, finishing, and then,
success in fabric usage.
A newly developed methodology based on image analysis technique has been used to measure fiber openness and the results are compared with those of the traditional method of measurement of fiber openness. The role of different opening process paramete
rs in deciding the openness of fibers obtained by image analysis technique is found to be much higher than that obtained by beaker test method. It is found that the higher speed of opening rollers and higher angle of grid bars improve fiber openness appreciably, but with little deterioration in fiber quality. The higher fiber openness ultimately results into more regular and less imperfect yarn.
With the increase in fiber openness, yarn strength and yarn breaking
elongation increase initially and then decrease. Yarn hairiness almost
unchanged with the increase in fiber openness.
research The aim of this is to find an explicit relationship between the strength of fibers, bundle and
yarns. The CV values of the strength are given as well. This provides a relatively simple method for
estimation of staple yarn strength, while a
voiding some difficulties of an empirical method. The effects of
important factors such as fiber length and thickness, twist and count of yarn are considered. The results
are verified by published data in Mechanical Engineering of Textile Industries and Their Technologies,
Faculty of Mechanical and Electrical Engineering, Damascus University. and also in Al-Kumasiah
company in Damascus city.
This research provides suggestions if we apply it it will help in estimating directly the yarn strength
without manufacturing and suitable testing of the yarn.
The research aims to identify the factors affecting worker productivity in the General
Company for Cotton Yarn in Latakia, arranged according to their relative importance.
Reached the following results:
- outcome of the study were factors in the f
ollowing order: labor rights, the system of
incentives, rewards, rehabilitation and training, the physical work environment, work
stress, workload, promotions, labor relations. As the first component of a bulk of the
variations in form before recycling and beyond, so it should focus on the components
involved in this component, and take priority when studying factors affecting worker
productivity, and these factors are: labor rights, the system of incentives, rewards.
- The presence of significant positive relationship between spirits (labor rights,
bonuses, rehabilitation and training, the physical work environment, promotions, labor
relations) and worker productivity in the company studied.
3- The presence of significant inverse relationship between spirits (work stress,
workload) and worker productivity in the company studied.
There is a close relationship between literature and the human
spirit; Human life vehicles from the feeling and the unconscious,
repression, or separated area (recreation). And the words spoken by him
is the primary keys to his character, or windo
ws overlooking them
psychoanalyst or critic to the psychology of the unseen dark matter.
And poets better than the easy way for psychologists and scholars
to find out what going on in the self of human feelings and emotions and
ideas.
As the poetic discourse when issued by the creative sense, and
reflects the impact of the unconscious in his conscience we wanted to
extrapolate I'm spinning Zaidoun birth; are feeling the impact of
personality psychological standing, the reader an understanding of the
fact that their story of passion, taste and aesthetics become strong by.
We do not want this study to engage in the midst of philosophical
theories, and to hold the texts do not tolerate, what concerns us in our
literary'm Zaidoun is the alter ego lurking in the not deep feelings, and
monitoring of its manifestations in relation to the emotional birth; to get
to a new vision of creativity Ghazlip, away the concept of narcissism in
the Freudian significance.
