International Journals of Multidisciplinary
Research Academy (IJMRA)

Abstract:
The study of the mechanical vibratory performances realized in the design and the manufacture of the rotating machines gave rise to more and more modern machines. This makes it more competitive. It is in the same context that this work aims at checking the vibratory performances of the vibrating feeder of the company CHEMAF when it works with a single motor producing amplitudes of vertical vibrations and when it works with two engines producing horizontal and vertical vibrations to justify the need to use one or two drive motors.
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Abstract:
The router being equipment network allowing the interconnection of various networks plays of office the role of the gateway (point entrance and of output) of the infrastructure network. Being given that this last concentrates all Traffic towards the external network this last requires or must have good a perfomance material (memory size, resistances to the breakdowns, etc...) and logic (protocol to configure to ensure the availability and to avoid the congestion of the gateway)
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Abstract:
Algae are the green thallophytes, containing a green colouring matter called Chlorophyll, and in many algae the green colouring matter (Chlorophyll) may be masked by other colours, but in all of them, Chlorophyll is always present. They are autotrophic, meaning they manufacture their own food with the help of chlorophyll contained in them. They can affect water quality adversely by lowering the dissolved oxygen in the water. A number of algal species produce more potent toxins, if the water contains high concentrations of toxic algae or if their toxin is ingested. It presents a risk to human health, the algal toxins are usually released into the water when the cells of toxic algae rupture or die. The toxic algae have been grouped into two; freshwater species which are cyanophyta (blue-green algae) and marine species which are the dinoflagellates (diatoms).
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Abstract:
Recruitment and selection is an important area in human resource management that contributes to the initial satisfaction of the employees. Many organizations are planning new strategies and ways in order to recruit and select the best employees. Good employees at work place increase the productivity and profitability of the company. The study analyses the opinion of employees on Recruitment and selection, the statistical tools like reliability test and regression analysis are applied. The results of the study are very useful to every company which needs to manage its employees and make them satisfied at work place. The study helps in retaining the employees in the company for a long time
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Abstract:
The global obesity population is increasing because of high calorie and high sugar eating habits and a lifestyle that lacks exercise. The results of the Ministry of Education's examination of Chinese students ' physical health showed that the number of obese students increased and the number of sub-health increased. A series of data show that, due to the current deterioration of the national physique of the adverse situation, the national understanding of their own health conditions, the need to learn scientific fitness methods more and more strong. Nowadays, in both professional training and amateur training, a method called high-intensity intermittent training is widely popular.
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Abstract:
Science is the foundation upon which the bulk of present day technological breakthrough is built. Thus science should be properly taught and learnt. Effective teaching of science cannot be fully accomplished without the use of instructional materials. In a recessed economy like ours in Nigeria and to keep up with changing technological development, improvisation of teaching materials becomes a panacea and indispensable strategy towards sustainable development. The paper discussed the importance of improvisation, relevance of improvisation of instructional materials in a recessed economy, qualities of improvised materials and what a teacher can improvise for effective science teaching. Factors that hinder a teacher from improvising were also discussed. The paper recommended attendance to workshop and seminar to update the skills of the teachers towards improvisation.
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Abstract:
Electronic commerce, known as e-commerce, is a system that consists in buying and selling products/services over the internet.
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Abstract:
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Abstract:
Surface uprightness always expects a key part in machining undertakings.
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Abstract:
This paper provides an overview of fog computing and embedded systems platforms, highlighting their significance as foundational elements of the Internet of Things (IoT).
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