This paper presents the results of calculations to reduce greenhouse gas emissions in agricultural sectors of the Republic of Uzbekistan within the framework of the project: “Sustainable Agriculture Development and Climate Change Mitigation”. The initial data were the characteristics of the implemented installations based on renewable energy sources for the period of 2014-2018. Most of these installations were biogas settings based on the principle of anaerobic fermentation, as well as solar water heating and photovoltaic stations. The calculations were performed according to the “AMS-III.D” and “AMS-I.J” methods by the “Global Environmental Fund” experts. The developed computer programs were applied to calculate the arrival of radiation and the duration of sunshine during the year on the territory of Uzbekistan. According to the calculations, the reduction of greenhouse gas emissions was 1338840.5 tons of CO2 for the indicated period during the operation of installations based on renewable energy sources. Within the framework of this project, the total potential of generating electric energy from biogas settings and solar photovoltaic stations at the amount of 10,424 MWh was estimated.
BPRS displacement and its characteristics showed that the possible causes of deviations are imperfections of the method, operating principle, manufacturing inaccuracy, the volatility voltage amplitude of the power source, its form, and frequency, as well as other adverse external conditions.
The most important characteristic of biparametric resonance sensors (BPRS) of displacement, like any measuring transducer, is its deviation [1].
In this work, the deviation of the BPRS movement was estimated by the method of parametric structural schemes (PSS) [3]. The advantage of this method is the ability to analyze deviation that is invariant from the physical nature of the phenomena occurring within the sensors. Besides, this method is visual and convenient when compiling deviation equations that take into account all their types.
The PSS of the developed BPRS displacement taking into account possible sources of deviations is shown in Figure 1.
In view of the systematic and random component of the deviation of each elementary transformation according to PSS, it is allowed to write the following system of equations for the right section of the BPRS:
This article provides definitions of the positive and negative effects of the use of chlorine and ozone in water disinfection and presents the methodology and results of experimental studies of the parameters of water treatment with ozone, the electrodispersion method, as well as the electrode system “potential plane with corona needles - grounded plane”. The parameters of water treatment modes were determined by the method of three variants of aerosol charge, negative, positive and bipolar. The parameters of water treatment with ozone determined on the basis of these studies were verified on the basis of experimental studies of the process of ozone effects on aerosol particles in the contact chamber. The methodology and analysis of the results of these studies are given. Based on these studies, the best ratios of the parameters of water flow, air velocity and electrical voltage were determined. The best disinfection result was determined by the charge polarities of the water aerosol.
This paper highlights the methods of resenting mode in the transudation with distributed parameters. The transient parameters of the power supply were analyzed. It was discovered that resonance is provided in a small range of movement of the moving component of the sensor in known turbofan engines, indicating that the known techniques of sustaining the resonance mode are flawed. Further study should focus on developing novel methods for preserving resonance mode over the entire range of change of the converted value, general principles of turbojet engine construction, and a complete examination of their resonant circuits, according to the findings.
This article highlights the results of scientific research conducted by scientists from the Institute of Energy Problems of the Academy of Sciences of the Republic of Uzbekistan and the Tashkent Institute of Irrigation and Agricultural Mechanization Engineers of the National Research University in 2022 on the basis of justification and step-by-step electrical effects on the cultivation of environmentally friendly fast potatoes, including environmentally friendly agricultural.
Several studies have shown that electric stimulation improves germination, root growth, and disease resistance. Nonetheless, there is a scarcity of research on the effect of electric treatment on plant growth characteristics and quality. We investigated the effect of electric fields on three potato varieties (Santé, Quvonch-1650M, and Bahro-30), and also to confirm the results, seeds of the same variety were planted with and without electrical stimulation in the second experiment. Seed tubers were electrically stimulated during this study using hand-held equipment equipped with two ultraviolet emitters and an antenna (low-frequency radio impulse bio-stimulation). Studies have shown that pre-planting electrical stimulation of plants accelerates emergence of shoots of plants for 3-4 days depending on a grade. In addition, use of electrical stimulation had a positive effect on the growth of the plant. All studied varieties were taller by 4-5 cm and multi-stemmed, and 12-20 flowers were formed on one stem, which is 2-2.5 times more than in the control. In the second study stimulated each bush (one seed) gave an average of 813 grams, while 398 grams was observed in the control group. Conducted visual counts and serological analyzes showed that electrical stimulation of plants contributes not only to the reduction of infestation plants with viral diseases, but also the manifestation of symptoms of damage. The Kuvonch-1656M, in the studied variant, were affected by diseases 12%, while in the control variant this figure was 16%. Hidden virus infection of plants was 26% and 31%, respectively.
This paper considers the matters of estimating errors in measuring and processing diagnostic values of power facilities of power supply of high-speed railways. An information model of the channel for measuring and processing measuring information has been developed, which makes it possible to analyze measurement errors against the background of disturbing external influences, time sampling and coding, signal comparison devices with settings for the lower and upper boundaries of the zone of normal values, as well as obtaining mathematical expectations, standard deviations and other numerical characteristics defining the regression analysis. Permissible error values of the measured parameters are determined for a given confidence level.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.