Soy beans powder mixed with water is a good food for animals. However, there are two problems with this brew. One is that soy beans powder is sunk down to fast. Parts of soy beans powder are too big and too heavy. Animals do not eat soy beans powder because after a few minutes (around 3min) is sunk down and soy beans are on the bottom case. Another negative point is a quick growth of mold, especially during summer when the temperature is highest. Mold is making food unhealthy and causes unpleasant smell. After mold appears it is difficult to clean the case. One of the solutions to eliminate these problems is to use pulse power plasma discharge and the second solution is ultra sound treatment. It was observed that pulse power discharge can decrease the size of soy beans powder a few times. Another advantage of such experiments was that the pulse power discharge killed bacteria and viruses. After our experiments we did not observe mold growing. Using pulse power discharge we can decrease sinking speed by about ten times. Ultra sound generation is useful and can decrease sinking speed even more, compared with pulse power discharge.
The subject of this article contains selected methods of optimization of educational work using selected computer tools, such as e-learning. The use of information technologies is a common feature of teaching methods, which include e-learning. Through a distance learning, teaching and learning process became accessible from anywhere, at any age and time. Virtual contact between the teacher and the student is in many cases far more convenient for both of them. Training and e-learning courses are very popular. They are carried out not only in school or academic environment but also in the business one. Distance education is used as a tool to support learning process, and its use may allow easy management of materials, allowing to create flexible educational methods.
The work presented the possibility of implementing an innovative system of simultaneous transportation and treatment of sanitary wastewater in scattered dwelling areas. Small-bore sewerage with a balanced flow enables simple and inexpensive simultaneous disposal and pre-treatment of fluid with from vast, undeveloped areas.
In this chapter, selected problems of manufacturing coatings with high wear resistance obtained based on eutectic materials of the quaternary Fe-Mn-C-B system are discussed. With regard to the structural state and physico-mechanical properties of eutectic powder alloys and coatings correspond to the composite dispersion-strengthened materials. The formation of a hardened layer with the structure of eutectic on the metal surface is the creation of a new material with certain mechanical properties. The analysis of different material properties and of alloy addition enabled to work out new eutectic powder alloys based on iron of the Fe-Mn-C-B system. In particular, it enabled to determine eutectic ranges and element contents.
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