The article deals with the results of research of acoustic and magnetic field influence on conductivity and pH value of hydroponic solution. For carrying out researches in this area the hypothesis of possibility of nutrient solution influence on ions by means of an acoustic and magnetic field is set up. A laboratory scale plant was constructed for a pilot study of the hypothesis. The solution was moved in the tube passing through a ferrite ring with winding. Thus, the solution was exposed to the influence of acoustic and magnetic field. The object of research was hydroponic solution of (NH4)2SO4; (NH4)2HPO4; K2SO4; Ca(NO3)2; MgSO4 in water having adjusted concentration and acidity. The solution was taken from the tank of laboratory scale plant by means of the pump, passed through the working area of the acoustic and magnetic device, filter, and then was poured into the tank, from which the sample for pH level changing was taken. The pH value was measured at the temperature of 22С by using electronic pH-meter KL-009(1)A. For control of instrument readings acidity was tested by universal test-paper. The initial pH value of solution made 5. As a result of acoustic and magnetic treatment of solution pH value of hydroponic solution increased from 6 to 6.9. The results show the possibility of pH value correction by small energy input
This article describes how the periodic flooding of soil on a sandy soil model. It was established, that during the lateral movement of moistening of the soil, the moisture has a form of damped oscillations
In this article, the method of normalized amplitude for predicting changes in key technological parameters of potentially dangerous object, which can lead to abnormal situations is used.
The article provides guidelines for choosing the step between the values of the original time series and its length
The matters of production of modified wood from wood of little value and manufacturing from articles substituting valuable hardwood and exotic species are analyzed in this work
In this article we have shown how to find sub-optimal neural networks using genetic algorithms
The article developed a mathematical model of movement of the universal vehicle through the fields, having longitudinal and transverse slope of the surface
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
The aim of the research - justification and formulation of the composition of prolonged biscuits which have certain functionality by adding arabinogalaktan. The objects of research are arabinogalaktan and prolonged biscuits
The influence of stockbreeding complexes on hinterland is considered. The intensive way of animal breeding complex waste recycling in one cycle, as alternative energy source, is suggested
The article describes scopes and new technical decisions of static converters of the electric power with the improved operation-characteristics, executed with use of new element base and a modular principle of construction