Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userNoise Evaluation Caused by Machines in Certain Food Industries
تقييم الضجيج الناتج عن الآلات لصناعات غذائية محددة
1351
0 29
0
(
0
)
Created by
Shamra Editor
Ask ChatGPT about the research
تعد الصناعات الغذائية من الصناعات المهمة و العريقة في سورية، و من أشهرها صناعة الألبان و الأجبان, و صناعة الكونسروة, و صناعة البسكويت و العصائر و غيرها من الصناعات الغذائية التي لا يمكن إحصاؤها بسبب سعة انتشارها في سورية. و تتميز مصانع الصناعات الغذائية بتنوع خطوط إنتاجها و آلاتها و تجهيزاتها. الهدف من هذا البحث هو دراسة الضجيج (Noise) الناتج عن الآلات في شركتي صناعات غذائية (شركة A لتصنيع البسكويت و العصائر الصنعية و شركة B لتصنيع الألبان و الأجبان)، و ذلك من خلال قياس مستويات الضجيج بمقياس معتمد، و مقارنة نتائج القياس بالمقاييس العالمية بهدف معرفة مستويات الضجيج التي يتعرض لها العاملون في المنشآت الصناعية و وضع الاقتراحات الضرورية لتخفيض هذه المستويات.
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 and 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.
References used
BellhAR, L.H., Fundamentals of Industrial Noise Control. New York: Harmony Publications, 1989
Mechanical Vibrations and Shock Measurements Jens T.B.BRUEL & KGAER
EWINS D.J.Modal Testing: Theory and Practice, London, 1995, PP 313
rate research
Read More
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.
Twenty plant and animal food samples were collected from
different commercial stores. These samples were placed in a
sterilezed plastic bags not to be polluted and were moved to the
laboratory in special thermal containers to be tested.
The solid
samples were processed in the Digester to study each
sample separately , while the liquid samples were tested
immediately after being diluted.
After that they were studied with biochemical tests to identify the
type of germ that existed.
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).
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).
The aim of this research is to study a simplified approach for the design of low-noise bipolar
transimpedance preamplifiers for optical receivers. Analytical solutions for optimum biasing and
minimum equivalent input-noise current were derived. The
study was achieved by doing comparison
between the designed circuits. The equivalent input noise current was calculated by entering the
parameters in Matlab program and using Multisim as a simulation tool to detect a pulse signal of 30ns
width.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
