The machine has expired lifetime and current physical condition is characterized by the existence of significant structural degradation which in turn can affect the functionality and safety of ...personnel working in this. It is estimated that an increase of about 8-9%, or a maximum of 10% of the torque moment, to be sustained by the current drive group, is necessary. It remains only the change of the belt drive group on the porthole wheel arm and / or the change of the drive drum, the cups, the frontloading transmission bunk.
Infections that occur after the insertion of biomedical devices are a major problem; potential sources of infection are due to the adhesion of bacteria on the surface of implants, bacteria that form ...biofilms. In order to combat or to effectively prevent various microbial, which occur in medical procedures, we try to make compounds and materials that prevent the formation or development of microbial biofilm. The aim of this study was to obtain nanostructured surfaces based on magnetite, carboxymethylcellulose and ceftriaxone, as films with anti-infective properties in order to use them in the field of current biomedicine. To obtain nanostructured surfaces with high non-stick potential, the carboxymethylcellulose-functionalized magnetite powder was homogenized with an anti-infective agent, ceftriaxone. From the analysis of the obtained results it was found that the nanostructured surfaces obtained had a strong antimicrobial character infections and can be used successfully in the coating of medical implants, in order to combat the microbial biofilm.
The present study make an analysis of the energy sector and energy market in Romania and Europe. The energy strategy project 2016-2020 by 2030 is currently under development and then approved by the ...Romanian government. This perspective on the development of electricity production in Romania was elaborated on the basis of the assessment of the macroeconomic, industrial and employment impact on energy scenarios. Also others country from Europe have to fallow the energy strategy project for the next years. We can see that the old energy technology needs to be adapted to new environmental requirements and increasingly developed new technologies for obtaining energy from renewable sources which implies the development of a sustainable energy mix adapted to the new environmental and economic requirements.Countries like Germany, France, UK, Poland, Netherlands have already abandoned much the old polluting energy technologies and developed renewable energy, they are also advantaged by a sustainable economic development compared to the low economically developed countries like Romania, Bulgaria and others. Clean energy is at the heart of world's aspirations for a better future, as reflected in the 197 countries that have signed up to the Paris Agreement on Climate Change. The transition from fossil fuels to renewable sources such as solar and wind is key to achieving social, economic and environmental development. This will change the lives of 1,2 billion people who struggle through life with no electricity, will create new jobs and commercial opportunities and it will slash the air pollution that claims millions of lives each year. All this defines the sustainability of the energy mix
In this work it was analyzed a welded construction of a rollers which is part of a conveyor belt of a roll 84 inches. The roler taken under discussion is a roler that has an outer diameter of 89 mm ...and length of 504mm. The roller is accomplished up of a cylinder wherein spindles the axis of rotation are fixed with the help of some double disc by welds corner. Because it is known that the roller is requested by the concentrated force 5 kN, keeping account the dimensions of the elements and the material from which they are executed were determined requests that confronts the roler.
This paper emphasizes the importance of identifying the necessary processes of the Integrated Management System within an organization .The method that is used to identify management processes, basic ...processes and support processes is a method known as SIPOC method. Elaboration and documentation of the integrated management system assumes synergic valorisation of the three systems of requirements described in the applicable reference documents.
In this paper we present the technical state in which is found the helical assembly of a coal suction machine, following the technical expertise. The rehabilitation to which the helical assembly will ...be subjected will be done through the execution of the intervention works that will restore to the normal operating parameters of both the structural part and the functional part. The paper presents: the modalities of verification of the mechanism as well as the proposed technical solutions for the repair of the assembly.
The machine is out of order, and the current physical state is characterized by the existence of significant degradation of the structure which in time may affect the functionality as well as the ...safety of the personnel working on this machine. The rehabilitation to which the machine will be subjected, by carrying out the intervention works, will lead to the functionality in its normal operating parameters of both the structural and the functional part.
In this paper we present the technical state in which is found the helical assembly of a coal suction machine, following the technical expertise. The rehabilitation to which the helical assembly will ...be subjected will be done through the execution of the intervention works that will restore to the normal operating parameters of both the structural part and the functional part. The paper presents: the modalities of verification of the mechanism as well as the proposed technical solutions for the repair of the assembly.
In this paper are presented the methods of ascertaining the technical state of a mining machine and their method of application. Taking these methods into account, the technical expertise of the ...tripod support assembly of a coal extraction machine is presented. After performing the technical expertise, there are presented the found defects. The rehabilitation to which the assembly will be subjected will be done by the workmanship of the intervention work that will bring back to the normal operating parameters both the structural and the functional part.
In this paper are presented the methods of ascertaining the technical state of a mining machine and their method of application. Taking these methods into account, the technical expertise of the ...tripod support assembly of a coal extraction machine is presented. After performing the technical expertise, there are presented the found defects. The rehabilitation to which the assembly will be subjected will be done by the workmanship of the intervention work that will bring back to the normal operating parameters both the structural and the functional part.
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