The article presents results of research on drying a
slurry consisting of distilled water and finely chopped
cooked chicken protein of table eggs. The suspension
is placed in a Memmert oven, which has temperature
of 60 °C. In the process of removing moisture when
drying the slurry of water - boiled protein we
examined kinetics of its drying and performed
chronological photographing of conformation of the
system of water - boiled protein. The final weight of
the protein remaining after evaporation, was 0.06 g
corresponding to 26% by weight of cooked protein
source in an amount of 0.23 g. The analysis of the
system appearance including the evaporation of the
water showed that the protein was originally white,
and this color does not undergo any changes until 35
minutes of drying, i.e. when the main base is water.
Upon further drying of the suspension, starting with 40
minutes, boiled protein literally "melts" in the
surrounding water residues; and as it is disappearing,
becoming more and more transparent. Meanwhile, the
forms of the protein are becoming round and
transforming into the form of liquid crystals. The final
phase of the protein is a solid transparent film
The research is devoted to the problem of choosing the best methods for assessing the economic efficiency of information technologies. Using the Kemeny median is proposed to solve this problem. This method will allow to obtain the ranking of methods of evaluating of IT effectiveness by various criteria. The existing methods of valuation of economic efficiency of information technology were systematized in the article. Preliminarily, all the methods were divided into three groups: financial, probabilistic and qualitative analysis tools. The advantages and disadvantages of methods, their purpose, use and limitations were also considered. As a result of systematization, it was concluded that there were some limited and one-sided methods. No single method allows to assess comprehensively the effectiveness of an information technology. Obviously, the methods should be considered in the system. But for this they need to be ranked. In order to obtain the ranking the method of Kemeny median was used. In the beginning the expert evaluation of methods by the eight proposed criteria (taking into account the specificity of the original data, validity, unambiguity, information content, exactness, complexity, the access to information, the cost) was carried out. Next, the search of the group ranking was carried. The matrix of losses was compiled. The problem of appointments was solved in MS Excel. At the end, the matrix of paired comparisons has been obtained. This matrix helped to determine the final ranking of alternative methods. Therefore, using the Kemeny median allowed us to prioritize the use of methods of evaluating of the effectiveness of information technology
Promising is the direction and, above all, in matters of energy saving and energy efficiency of Autonomous systems of power supply, the use of renewable sources-newable energy as a major source of energy for consumers in remote areas. Here priority is given to solar energy. Since solar radiation can be change place not only in heat and electrical. The article contains three main structural schematics of electricity supply with solar power plants. The features of their work are disclosed, as well as an algorithm for calculating solar energy systems, the sequence of which is to define the required parameters, the daily energy consumption by consumers of electric power, the calculation capacity of the battery, the choice of the inverter and determining the area of solar batteries. The article reveals the conditions that affect the calculation of the PV system. It is shown that the greatest efficiency, including economic and reliability we have at combined (hybrid) Autonomous system, which was carried out with both solar power and wind power and gas stations. The important matters of improving the reliability of solar systems are the introduction to the design of a new element of the base, and first and foremost, Autonomous inventors performed on a single-phase transformer with a rotating magnetic field
The technique of a choice of the directions of restoration of the intraeconomic irrigating network, allowing to estimate the most effective of an existing number sprinkler irrigation machines (SIM) for the given site is offered in this article, taking into account the presence of an existing network, financial possibilities of the customer, a choice of a way of an irrigation etc. Estimation of the chosen way of restoration of an intraeconomic irrigating network is offered to be spent on three indicators: resource, technological and complex
The article presents the results of the researches of the
work of sprays of the offered sprayer at the laboratory
Agrotop stand. On the basis of the conducted researches,
for processing of a cane of rice checks using slothole
sprays providing uniform distribution of toxic
chemical on capture width is recommended
The article analyzes the existing technologies and
methods of storage of tubers of topinambur. We have
analyzed the traditional methods of storage of tubers of
topinambur - in containers, boxes or bags in storage or
in the ground clamps. Russian and foreign topinambur
tubers storage technologies in modified atmosphere,
with use of easily removable wax coating, with plant
extracts treatment, at different storage temperatures are
studied. We have also carried out analysis of scientific
and patent sources led to the conclusion that existing
technologies and methods of storing topinambur tubers,
which do not allow reducing to the maximum extent
the weight loss and the inulin hydrolysis during
storage. A reasonable conclusion was made about the
advisability of further studies in the field of innovative
technologies and methods of preparation for storage
and storage of topinambur tubers, ensuring minimal
weight loss, as well as maximum preservation in their
structure of inulin, vitamin C and other biologically
active substances during storage
The article lists the characteristic and scrutinizes features
of modern topinambur varieties. Data, characterizing
acres in crops and crop yield abroad and in Russian
Federation, are analyzed. Classification traits of
topinambur varieties, included in the state register of
selection achievements, are studied. Data on crop yield,
duration of vegetative period, composition of carbohydrate
complex, content of vitamins, macro- and microelements
are systematized. The article studies most
popular foreign topinambur varieties. The carried out
analysis of scientific sources on agrobiological properties
and chemical composition of topinambur varieties
allowed choosing varieties, which are the most promising
for industrial processing
The influence of operational factors on the throughput of rice irrigation systems is under discussion. Calculation formulas for roughness coefficient determination in riverbeds, overgrown by aquatic vegetation, are adduced
In this article the analysis of operating mode of irrigat-ing rice systems is presented; it shows that the main task of the management consists in formation and maintenance for a long time water regime on rice fields, in channels, and also levels of ground waters
The results of the study of amino acids of white table
wines depending on the yeast strain, continuous contact
of wine with yeast biomass and the presence of
lees stirring are presented. The dynamics of amino
acids, which affect wine organoleptic characteristics
and the formation of wine defects, specifically, tyrosine,
methionine, threonine and lysine is shown. Conducted
researches made it possible to divide the amino
acids into three groups depending on the carrying out
the batonnage or lack of it. The first group consisted of
amino acids, the concentration of which practically has
not changed in the presence or lack of stirring. The
second and third groups include amino acids, the concentration
of which increased and decreased, respectively
during batonnage. The stirring of the wine with
yeast biomass facilitated to the activation of mass
transfer processes between cell and medium, and the
access of air lead to oxidation of some amino acids and
the change of its concentration. The absence of stirring
influenced to a slight increase in the concentration of
such amino acids as cystine, cysteine,
β-phenylalanine, serine, α-alanine, leucine and glutamic
acid. The experimental data allowed to arrange amino
acids in a row depending on the speed of release
into the medium: ά-aminobutyric acid >
glutamic acid > α-alanine > leucine