In this research we studied the mechanism of the reaction the solution ( Malonic acid , Zinc , Water ) by using different methods.
This research focuses on an important sector of the national economy sectors, which
is the industrial sector and, especially engineering industry. This research aims to explain
the importance of using research operations methods in the process of d
ecision- making,
especially in choosing optimal product mix in engineering companies in the Syrian coast.
These methods play an essential role in making scientific and logical decisions to solve
problems which face decision-makers in these companies. They provide a set of
alternatives that help decision-makers on choosing the best alternative among available
alternatives set to solve the problem that face them. This positively influences the work of
these companies, which, in turn, positively influences their role in industry and national
economy.
The researcher found to following results:
- Using research operations methods requires a definition of these methods, availability
of proper financial support, suitable work nature, availability of required data and
availability of computers.
- Using research operations methods helps to improve the decision-making process in
choosing optimal product mix through decreasing production costs, optimal using of
available resources, optimal investment of production power.
The Railway track is the main factor in evaluation any railway system, because it has direct
effect on speed, comfort and safety of Train.
As it costs about 35% of total construction of new railway, this research is important to study all
elements
and use available data to evaluate the studied line, and then it analyses the results to
clarify the reaction between the defects. Therefore, the paper shows the priority of maintenance
with less prices.
The corrosion inhibition of transmision steel in 1M HCl solution in
the presence of Succinic acid at temperature (20,30,40,50,60)°C at
concentration between (10-6- 10-4) M for two hours were studied
using weight loss method.
We studying in this research the reaction with Zinc sulphate in an
aqueous solution by physical - chemical method in presence of
Succinic Acid , and determined compounds which are formed in
this solution and we calculated of it formation the const
ants.
After we used these electrolytes in plating by Zinc , that is by
electro precipitation of this metal on the solid electrodes (steel,
copper) so that we definite the best of these electrolytes for galvany
and the set necessary conditions for its use.
The corrosion inhibition of transmision steel in 1M HCl solution in
the presence of Vanillin at temperature (20,30,40,50,60)°C at
concentration between (100-500) ppm for two hours were studied
using weight loss method.
يعد السلوك الإيثاري احد صور السلوك الاجتماعي الإيجابي الذي بدات البحوث النفسية الالتفات إليه حديثا ,
يدرس هذا البحث تآكل الحديد في أوساط مختلفة كالوسط الحمضي والقلوي والمياه المالحة ومياه الشرب والهواء الرطب
