The aim of the article is to analyze existing quantum
distribution systems, their facilities, physical bases of
quantum objects behavior used in quantum distribution
systems and protocols of quantum keys distribution
The subject of study of this work was learning algorithm of neuro-fuzzy systems with different membership functions. In the prior works there are no published studies of such studies, making it difficult synthesis of neuro-fuzzy control system with new objects in the application of biotechnology, including technological agribusiness entities. A comparative analysis of learning algorithms of neuro-fuzzy system with different membership functions using the method of error back propagation and а hybrid method. For this we used a training sample that contains data of temperature and concentration of dissolved gas in the culture liquid: oxygen (pO2), carbon dioxide (pCO2) of a biotechnological process. It is shown that the hybrid method carries out training of a neural network for the number of periods is 23 times smaller than the algorithm back-propagation errors. The studies found that the two-sided Gaussian membership function provides the smallest learning error of the network δ equal of 3,28•10–3, compared to the other, giving the largest error of training the neural network δ=0,138. Therefore, the task of running the fermentation process effective is the use a hybrid method of education and two-sided Gaussian membership functions. According to the research, we can conclude that for the adaptation of neuro-fuzzy network ANFIS and fuzzy inference system Sugeno zero order to solve biotechnological process control tasks microbiological production efficiency is to use a hybrid method of education and bilateral Gaussian membership functions
We have developed a mathematical model of thermodynamic processes at oscillatory movement of liquids in porous environment with consideration of heat interaction of an oil layer with surrounding breeds and phase transitions caused by dissolution of paraffin’s dissolution. We have received analytical dependences of temperatures on time, distances to well and depth, that proves an opportunity to increase of oilrecavery when influenced by periodic fields of pressure. We have suggested a bartering effect to increase the temperature in zones far from the well formation. The mathematical model is based on the equation of heat balance, taking into account the contribution of phase transitions due to paraffinization in the case when the motion of the mixture takes place in a homogeneous isotropic porous medium with constant porosity and constant density. In the work we have developed a theory of bartering effect upon oscillatory movement of fluids in porous media considering thermal interaction between the oil reservoir and surrounding rocks and phase transitions due to the dissolution of paraffins. Comparison of theoretical and experimental data has confirmed the possibility of using the first approximation for the calculation of real thermodynamic processes in the filtration-wave fields. The developed process model allows the calculation of the temperature field in the practical conditions
The best predecessors for sowing grain are grains and legumes, tilled cultures and perennial grasses. The precursor also determines the choice of the tillage type. The imperfection of the working bodies of the machines for soil treatment is the main reason for the increase in the complexity of preparing soil for sowing. In recent years, domestic manufacturers have been producing combined working machines that perform several technological operations in one pass. To prepare soil for sowing grain there have been selected disk units and working machines which were tested on the Kuban State Zonal Machine-Station. They fit well with the existing technology. It is rational to conduct tillage of soil for tall crops and perennial grasses by the disc cutter BDM-4×4. The disc cutter efficiently prepares the soil for seed bed cultivation on tilled precursors in one pass or two passes. It is efficient to conduct tillage on grain precursors by the stubble cultivator KSP-6, by the disc combined unit AKD-3 or DCN - 3.3. After grain predecessors the disc guns prepare soil for seed bed cultivation in two passes, and after perennial grass in a single pass. According to the results of the trials on the Kuban State Zonal Machine-Station the stubble cultivator KSP-6 efficiently prepares soil for sowing in one pass of the unit. The block-module cultivator MSC provides high quality pre-sowing cultivation simultaneously with sowing. There was proposed the method of equipping the unit so that it would provide usage of the data and technical characteristics of the tractor and physico-mechanical properties of the soil for which the technological operation is to be done. The proposed method determines the transmission ratio for which the amount of slipping does not exceed the permissible values in agro requirements. The value of the theoretical speed is calculated for the given transmission. Operating speed is determined taking into account the slip values
Education was always an important part of the
development of the individual and society, because
education is the process of the formation of mind and
character. Each level of education currently requires
increased attention, since the quality of life of future
graduates directly depends on the quality of the
provision of educational services. Despite the fact that
most of the educational process is formalized by
educational standards, regulatory documents and local
acts of educational institutions, this area continues to
need both automation and the development of various
models, methods and techniques, the use of which will
greatly optimize the implementation of the educational
process. There are few software products, models and
methods that assess the quality of education and the
educational process in general, aimed at individual
elements of the educational system. In all the existing,
basically, there is only support for working with
bachelors, slightly less often with masters and very
rarely with graduate students. This article describes
methodological approaches to assessing the
achievements of graduate students, as well as an
information system for supporting the educational
process of graduate school
Russia starts working on creation and implementation
of the utilization system for different types of withdrawn
equipment. Expediency of creation of this sectoral
system in Russia is proved in the article. Ability
of the system creation is considered. Recommendations
for the ability rise are also given
The article considers the mathematical task of calculating
the transient flow of water in the regulation of
concentrated releases of water discharges on stream flows
in lower tails of spillway waterworks. An algorithm,
analytical solutions based on hydraulic calculations of the
process of propagation and transformation of long waves
described by Saint-Venant equations are constituted.
These equations are nonlinear and have no exact
solutions. To obtain approximate solutions these
equations are linearized. The efficiency of spillways
depends on how accurately hydraulic processes
characteristics are measured. Control and direct
measurement of characteristics of hydraulic processes in
natural conditions is difficult, which requires applying
methods of mathematical modeling and simulation
studies of transient processes, which are based on the
algorithms of functioning of transient hydraulic processes
control. Introduction of the developed method for
hydraulic calculation of discharge releases to streams, diverting the water from water discharge structures,
allows optimize idle and non-technological discharges of
water from reservoirs. Considering the highly dynamic
nature of the water flow in the lower tails of the dams at
concentrated releases of water discharges from reservoirs,
development of new methods of hydraulic calculation of
extreme discharges and water depths at the critical
sections of watercourses with transient regime of water
flow is an important task
An integrated mathematical approach to modeling functional and structural parameters of a mobile technical service was observed in the article, and also, we reviewed their technical and economical work indicators. The authors propose evaluation criteria and the structural scheme of small sized units of technical service machines. For the attached unit option a combining service snap method is described and the service cost analysis in comparison with trailed analogues is made
Nowadays the method of finite elements (MFE) is a
standard method of acoustic analysis. It consists in
finding the solution of the function on the maximum
allowable quantity of piecewise continuous functions
that are determined in allowed number of subdomains.
The number of sub-domains has a finite
value but an unknown continuous value is
approximated by the polynomial on each element that
acquires specific values in the nodes. Polynomials can
be various but all of them produce continuity of total
value along its limits. Herewith because of technical
features of the calculation process minimization of
numbers of polynomials is required according to the
criterion of acceptable precision. In the chosen
COMSOL Multiphysics program model the range of
frequencies under analysis is the result of the sum of
10 segments (sub-ranges). Such a sub-range is a
minimal discrete value in certain conditions of
calculation. Thus, the calculated value on this subrange
can be considered as the result of calculation by
means of using the band-pass filter with 35 Hz
bandwidth. Because of this, we can draw a conclusion
about changing the state change of the noise exposure
on the combine operator with respect to the previous
measurement according to the regulatory
methodology. Hereinafter if the stated change of the
noise exposure is found, measurements that are more
precise are taken. On the basis of these measurements
the head of the company receives recommendations
either on verification of stated acoustic characteristics
of devices and mechanisms of a harvester or on
verification of acoustic ways of transmission of
structural noise (noise created by devices that
penetrates into the booth through the combine body),
or on verification of noise isolation of the booth
In the study of the processes of growing, harvesting,
post-harvesting processing and delivery of fruit and vegetables it seems to be rational to have generalized
control of the "product – environment – packaging –
transport - storage" in general, as well as providing
the possibility of creating optimal conditions for fruit
and vegetable products depending on its condition.
The basis of ensuring product integrity at all stages of
production is a system approach with application of
modern information technologies. Optimization of
logistic processes in the agro-industrial complex
(AIC), in addition to cost, market influences many
important indicators of the final product of this
complex: quality, timing and reliability of supply, the
size of the delivered batches, etc. The quality of fruits
and vegetables begins to change dramatically
immediately after harvesting. Being in a stressful and
unfavorable conditions, fruit, vegetables, root crops
intensively lose moisture and consume nutrients,
secrete aromatic substances, carry out the breathing
process. These losses are caused by biological factors
fit fruit and vegetable products to the changed
conditions. Thus, the main indicators of the quality of
products to control rationally in the process of
harvesting and subsequent production phases take
into account the data obtained to optimize process
parameters to reduce losses and damage products.
The article discusses the prospects of applying the
system-information approach to the formation of
quality of fruits and vegetables during transportation
and storage. The proposed embodiment of a
generalized control of the "product – environment –
packaging – transport - storage", aimed at ensuring
the possibility of creating optimal conditions for
easy-to-sell agricultural products (fruits, vegetables,
root crops) depending on its condition. We have
established that rational technology of production and
sales of products must have the ability to control and
operational adjustments depending on the level of
quality input products from the stage of harvest