Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userNoise Evaluation Caused by Machines in Textile Dyeing Factories
تقييم الضجيج الناتج عن الآلات في معامل صباغة الأقمشة و تجهيزها
1215
0 68
0
(
0
)
Created by
Shamra Editor
Ask ChatGPT about the research
تعد الصناعات النسيجية من الصناعات المهمة و العريقة في سورية، و هي قديمة منذ عهد بعيد، حيث اشتهرت منطقة بلاد الشام بها، و من أشهر أنواعها ( الدامسكو و البروكار ) التي انتشرت في أنحاء العالم، علماً أن هذه الصناعة هي محصلة لصناعات متعددة تبدأ من الغزل ثم النسيج و الصباغة و الخياطة للمنتج النهائي. تعد الصباغة أهم حلقة في هذه الصناعة لأنَّها تعطي المنتج رونقاً و تمايزاً يتماشى مع الأذواق المتعددة و تغيرات الموضة, و هي صناعة فنية و علمية دقيقة تحتاج إلى مهارات عالية و يد عاملة كبيرة نسبياً. إن الهدف من هذا البحث هو دراسة الضجيج (Noise) الناتج عن الآلات في ثلاث شركات للصباغة و تحضير الأقمشة من خلال قياس مستويات الضجيج بمقياس معتمد، و مقارنة نتائج القياس بالمقاييس العالمية لمعرفة سويات الضجيج التي يتعرض لها العاملون في المنشآت الصناعية و وضع الاقتراحات الضرورية لتخفيض هذه المستويات.
Textile industries are very important in Syria. Sham Countries are known with it, and the most famous kinds of it are: Damsko and Brokar, that spread in the world. This industry is a result of many industries starting, from spinning then fabric and dyeing and sewing for the final product. Dyeing is an important phase in this industry, because it offers to the product its beauty and specialty that comes with many gestations and the changes of fashion and style, and it's an artistic and scientific industry that needs high skills and numerous staff for work and operating. The purpose of this research is to study noise caused by machines in three companies working in dyeing and preparing clothes, by measuring noise levels with anchor equipment and comparing the results to international standards in order to estimate the amount of dosages that workers in industrial establishments face, and to come up with recommendation to reduce noise levels.
References used
بحي الحسين: الصوت في بيئة العمل.
BellhAR, L.H., Fundamentals of Industrial Noise Control. New York: Harmony Publications, 1989
حمد رشيد الشربجي: ديناميك الآلات والاهتزازات, جامعة دمشق, 1988.
rate research
Read More
Food Industries are among the most important and ancient industries in Syria. The most famous kinds of
it are: Yogurt and cheese industries, biscuit and juice industries.
Food industries' factories are special because of its many production lines a
nd its machines and of the
preparation needed.
The purpose of this research is to study noise resulted by machines in companies of food industries by
measuring noise levels with an anchor equipment and comparing the results with international standards
in order to estimate the amount of dosages that workers in industrial establishments face, and then to
conclude appropriate recommendations to reduce noise levels.
This research is based on the use of different types of mineral
mordants, mineral salts, in the dyeing process using the aqueous
extract of eucalyptus leaves. The used mordants are aluminum
potassium sulphate, copper sulphate, iron sulphate and mi
xtures of
these mordants. Study the effect of these mordants on the dyeing
process.
We have studied the attenuation of the surface rapid magnetic waves in the sun resulting from solar radiation and collisions and their role in heating the layers of the chromosphere and the corona of the sun, considering that this damping may be one
of the reasons for the high temperature of these two layers despite their distance from the main heat source in the sun It is the nucleus (Core).
In this paper, A random modeling has been performed for
gyroscopes' components noise in unit measurements inertial
Crossbow IMU400CD MEMS by Alan Variance. Three random
components were discriminated in the noise sensors in addition to
the estimat
ed coefficients of these components, while the technical
bulletin did not mention but one component. Knowing the random
noise type gives the ability to use it as an output component of the
navigational system; estimating it with the navigation support
means such as GPS or magnetic compass or ... etc. enables to
correct gyroscopes out.
Inertial sensors Gyroscopes are gaining nowadays more and
more research interest in a variety of transport fields (i. e. land, sea
and air). Recent efforts are going towards developing those
traditional electromechanical models to electronic manufacturer
microenvironment technology called Micro Electro Mechanical
System (MEMS).
But in return MEMS gyroscopes suffer precision low when
compared to other types as a result of errors, many appear on the
output of particular random errors that can't be deleted
methodologies calibration known, so it is classified as a type of
noise or random processes where they are modeled using random
modeling techniques stochastic Modeling to identify and
distinguish types of noise in the sensor output. Among the most
famous of these techniques mode Allan Variance (AV).
Determination of infertility cause and the quality of sperms in semen are the
most important factors when we want to choose the suitable method of therapy
of assisted reproduction techniques, which has been proven to be the most
effective method t
oday in the treatment of many cases of male infertility, and it
allows to choose the best sperm for Intracytoplasmic sperm injection technique
(ICSI).
In our study we tried to find a relationship between one of the semen
parameters with the other basic parameters, we studied the concentration
motility and morphology of sperms of 23 infertile men with oligozoospermia,
and 5 control cases for fertile men.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
