bluuebunny/crossref_metadata_2025 huggingface dataset:
Exploring Motives and Perceived Barriers for Voice Modification: The Views of Transgender and Gender-Diverse Voice Clients
Authors: Holmberg Jenny , Linander Ida , Södersten Maria , Karlsson Fredrik
Published: June 2023

Purpose:

To date, transgender and gender-diverse voice clients' perceptions and individual goals have been missing in discussions and research on gender-affirming voice therapy. Little is, therefore, known about the client's expectations of therapy outcomes and how these are met by treatments developed from views of vocal gender as perceived by cisgender persons. This study aimed to explore clients' individual motives and perceived barriers to undertaking gender-affirming voice therapy.

Method:

Individual, semistructured interviews with 15 transgender and gender-diverse voice clients considering voice therapy were conducted and explored using qualitative content analysis.

Results:

Three themes were identified during the analysis of the participants' narratives. In the first theme, “the incongruent voice setting the rules,” the contribution of the voice on the experienced gender dysphoria is put in focus. The second theme, “to reach a voice of my own choice,” centers around anticipated personal gains using a modified voice. The third theme, “a voice out of reach,” relates to worries and restricting factors for not being able to reach one's set goals for voice modification.

Conclusions:

The interviews clearly indicate a need for a person-centered voice therapy that starts from the individuals' expressed motives for modifying the voice yet also are affirmative of anticipated difficulties related to voice modification. We recommend that these themes should form the basis of the pretherapy joint discussion between the voice client and the speech-language pathologist to ensure therapy goals that are realistic and relevant to the client.
Do-It-Yourself Voice Dosimeter Device: A Tutorial and Performance Results
Authors: Bottalico Pasquale , Nudelman Charles J.
Published: June 2023

Purpose:

Voice dosimeters gather voice production data in the daily lives of individuals with voice disorders. Additionally, voice dosimeters aid in understanding the pathophysiology of voice disorders. Previously, several voice dosimeters were commercially available. However, these devices have been discontinued and are not available to clinicians and researchers alike. In this tutorial, instructions for a low-cost, easy-to-assemble voice dosimeter are provided. This do-it-yourself (DIY) voice dosimeter is further validated based on performance results.

Method:

Ten vocally healthy participants wore the DIY voice dosimeter. They produced a sustained /a/ vowel and read a text with three different vocal efforts. These tasks were recorded by the DIY voice dosimeter and a reference microphone simultaneously. The expanded uncertainty of the mean error in the estimation of four voice acoustic parameters as measured by the DIY dosimeter was performed by comparing the signals acquired through the reference microphone and the dosimeter.

Results:

For measures of sound pressure level, the DIY voice dosimeter had a mean error of −0.68 dB with an uncertainty of 0.56 dB. For fundamental frequency, the mean error was 1.56 Hz for female participants and 1.11 Hz for male participants, with an uncertainty of 0.62 Hz and 0.34 Hz for female and male participants, respectively. Cepstral peak prominence smoothed and L
1
minus L
2
had mean errors (uncertainty) of −0.06 dB (0.27 dB) and 2.20 dB (0.72 dB).

Conclusion:

The mean error and uncertainties for the DIY voice dosimeter are comparable to those for the most accurate voice dosimeters that were previously on the market.
A court line extraction algorithm for badminton tournament videos with horizontal line projection learning
Authors: Wei Chun‐Ta , Weng Shiuh‐Ku
Published: June 2023

Court line extraction is one of the important steps in the analysis of sport videos. The court extraction is the foundation of the analysis of badminton video, and an efficient method with horizontal line projection K‐means machine learning algorithm to extract court lines from different broadcast badminton tournament videos is proposed in this paper. The horizontal lines are projected into 1‐D histogram signal; then the signal is trained to learn the intensity of the histogram signal for locating the positions of the horizontal court lines. After the equations of the horizontal court lines and the court lines in the vertical direction have been formulized, the intersection points of the court lines can be calculated and the court line can be extracted. The experimental results show that the proposed method can extract the court lines more efficiently than that done by the Hough transform‐related algorithms, which are widely applied in computer vision and self‐driving car applications.
Spatiotemporal traffic data imputation by synergizing low tensor ring rank and nonlocal subspace regularization
Authors: Wu Peng‐Ling , Ding Meng , Zheng Yu‐Bang
Published: June 2023

Spatiotemporal traffic data usually suffers from missing entries in the data acquisition and transmission process. Existing imputation methods only consider the global/local structure of spatiotemporal traffic data, resulting in insufficient estimation performance. Fortunately, it is found that traffic data admits the nonlocal self‐similarity (NSS) prior. This paper incorporates the global and nonlocal low‐rank priors of traffic data and proposes a tensor completion model for spatiotemporal traffic data imputation. To be specific, the proposed method uses tensor ring (TR) decomposition with an enhanced representation capability to characterize the global low‐TR‐rank prior of traffic data, e.g. the correlation of sensor and time modes of the tensor (i.e. traffic data). An implicit plug‐and‐play (PnP)‐based regularization is further utilized to exploit the NSS prior, which depicts the nonlocal similar traffic data patterns. Furthermore, the proximal alternating minimization algorithm under the PnP framework is derived to solve this model. The experiment results on various datasets and missing scenarios show the superiority of the proposed model.
A machine-learning-based tool for open cluster membership determination in Gaia DR3
Authors: van Groeningen M. G. J. , Castro-Ginard A. , Brown A. G. A. , Casamiquela L. , Jordi C.
Published: June 2023

Context. Membership studies characterising open clusters (OCs) with Gaia data – most of them using Gaia Data Release 2 (DR2) – have so far been limited at the faint end to magnitude G = 18 due to astrometric uncertainties.

Aims. Our goal is to extend current OC membership lists with faint members and to characterise the low-mass end. These low-mass members are important for many applications, in particular for ground-based spectroscopic surveys.

Methods. We use a deep neural network architecture to learn the distribution of highly reliable OC member stars around known clusters. We then use the trained network to estimate new OC members based on their similarities in a high dimensional space, their five-dimensional astrometry, and information from the three photometric bands.

Results. Due to the improved astrometric precision of Gaia Data Release 3 (DR3) with respect to DR2, we are able to homogeneously detect new faint member stars (G > 18) for the known OC population.

Conclusions. Our methodology can provide extended membership lists for OCs down to the limiting magnitude of Gaia, which will enable further studies to characterise the OC population; such as estimation of their masses and dynamics. These extended membership lists are also ideal target lists for forthcoming ground-based spectroscopic surveys.
Investigation and substantiation of the parameters of the plow body angle lift
Authors: Nasritdinov Akhmadjon , Ryazanov Anton
Published: June 2023

Currently plowing fields from under various agricultural crops is carried out with reverse plows in Uzbekistan. Their use can dramatically reduce labor and money costs for conducting current and capital field planning. With the supply of energy-rich wheeled tractors to the Republic of Uzbekistan, one of the most effective ways to increase the productivity of plowing units at present is to increase the plow's working width by increasing the number of housings. Increasing the number of hulls on revolving ploughs, equipped with pre-ploughs, this leads to a sharp increase in the metal and energy consumption of ploughs, since the latter have a double number of working elements. Therefore, an important role is played by the optimal placement of plow bodies along the plow course and the maximum reduction of distances between them, when using angle plates on the bodies instead of traditional pre-plows. The article discusses experimental influence of the angle-lift radius of curvature, the installation height, and the installation angles in the longitudinally-vertical and transversely-vertical planes on the traction resistance of the hull and the depth of embedding of plant remains was studied by MRI.
Compositions of clay suspensions for fixing moving sands and soils
Authors: Kuldasheva Shakhnoza , Adizova Nargiza , Karimova Gulirano , Dauletbayeva Raushan , Kurbonov Furkat
Published: June 2023

This article discusses the development of compositions of new, effective, water-soluble fixatives-reagents based on local raw materials and industrial waste. A technology has been developed for obtaining and using new types of complex additives-fixers based on hydrolyzed polyacrylonitrile polyelectrolyte, which can be recommended for implementation when fixing saline soils and sands of the Aral region. Chemical reagents and materials have been selected to create a structured crust and a three-dimensional structure in a system of moving sands and soils. The processes of creating compositions of clay suspensions for fixing moving soils and sands were studied, for which alkaline bentonites of the Krantau deposit and alkaline earth bentonite of the Beshtyubenskoye deposit were selected. As a result of the studies carried out, the features of the chemical fixation of moving sands using local raw materials were established to prevent salt and dust release into the environment and improve its environmental conditions.
Improvement of housing with knives crushers for non-tillage technology
Authors: Ravshanov Hamroqul , Maiviatov Farmon M. , Kurbanov Sherzod
Published: June 2023

The paper gives justification of the options of the housing with crumbling knives for non-tillage technology. The dumpless housing with crumbles carries out intensive crumbling of the soil of the lower and middle arable soil layer. The body consists of a ploughshare, a ploughshare expander, knives and a chisel. When determining the parameters of a non-shaft housing based on a ploughshare, adopt a triangular wedge. Analytical dependences for determining the parameters of the components body without shaft are obtained. According conducted theoretical studies, without a tipper is 0. 45 m, entry angle the ploughshare on the soil is 25°, nook of installation relative to the direction of travel is 42°, corner of installation with respect to the bottom egate is 35°, grinder the blade quantity 4, the elevated is 35 mm, the longitude is 120-140 mm, the angle of installation regarding the direction of peregrinate is 10°, the installation related to the skyline is 30°, the height body sans a tipper is 420 mm processing is provided.
Ensuring the sustainability of the regional industrial system through the innovative development of agriculture and food industry
Authors: Urasova Anna A. , Glezman Ludmila V. , Shcheglov Evgeniy V.
Published: June 2023

Classification analysis in relation to territories of the same type, or objects with similar characteristics and properties, taking into account industry specifics, is becoming increasingly relevant in modern scientific discourse. This paper reveals the issues of the possibility of developing unified approaches to the management of the sectors of agriculture and the food industry from the standpoint of the uniformity and unidirectional development of a number of constituent entities of the Russian Federation. For this purpose, the authors chose as the main methods of classification analysis and analysis of time series, the synthesis of which made it possible to carry out calculations on the materials of the industrial region of the Russian Federation - the Perm Territory. The authors' toolkit is based on a classification analysis, which reflected the inversely proportional relationship between the volumes of innovative technologies being introduced and the volumes of output in the studied industries of the Perm Territory.
Obtaining of starch based on wheat and legumes and production of thirst-quenching drinks by processing of secondary water
Authors: Beshimov Yusuf , Akhmedova Mekhriniso
Published: June 2023

The article covers the production of starch, gluten and thirst-quenching drinks from local cereals and legumes. The chemical composition, use and beneficial effects of thirst-quenching drinks on the human body are widely covered. The article describes the effects of sodium hydroxide solution on wheat grains and the consumption of starch. In addition, the technology of obtaining soymilk from soybeans, which are legumes, is given.
Resource-saving technologies in storage and processing of agricultural products
Authors: Matvienko Evgeny , Aygumov Timur , Zolkin Alexander , Tormozov Vladimir , Shamina Svetlana
Published: June 2023

Over the past years, there has been an intensive development of interactive technologies that make it possible to intensify the operational processes of cleaning, transportation, purification from impurities, drying and storage of various products. The agriculture of Russia, as an integral part of the agro-industrial complex, shall be able to use broadband, mobile LPWAN communications, information technologies (Big Data, artificial intelligence, control platforms), radio frequency tags, controllers, sensors, domestic instrumentation controls to significantly increase the efficiency. The potential for modernization of the industry is quite huge. The development and improvement of working bodies make it possible to create machines and working bodies for work in difficult climatic conditions. However, it is quite difficult to set up machines to work within specific climatic conditions, which often limits the effectiveness of the application of innovative developments in different regions of the Russian Federation.
Determination of pressure in a flat channel of a solar water heater when water is freezing
Authors: Tovarnyx Gennady N. , Tyemurkhanov Anver T.
Published: June 2023

The article considers the problem of modeling a flat channel of a rectangular section of a solar water heater filled with water when it freezes to estimate the pressure in the channel. It is assumed that when water freezes, due to the density difference between the solid and liquid phases, the volume it occupies in the channel changes, and under the influence of the pressure difference between the external environment and the internal region, the channel walls are deformed. The theory of elastic cylindrical bending of a two-layer plate is used for modeling. Calculation relations are obtained for determining the pressure in the channel depending on the thickness of the freezing ice. An example of calculating the pressure in a channel of rectangular cross section when water freezes is given.
Effect of chemical products and providing their safety in cleaning complex oils
Authors: Ismatov Sunnatullo
Published: June 2023

Vegetable oil fundamentally differs from other available products in its composition, ingredients and other properties. Ensuring food security and adapting food products to the requirements of a modern market economy is an important and urgent problem. Particular attention in this direction is paid to vegetable oils. Therefore, it is important to conduct scientific research to improve the quality of refined and colored oils, as well as food safety. The paper recommends cleaning methods differ from existing ones in priority and convenience.
Ensuring the safety of grain raw materials used in the production of grain products
Authors: Cherkasova Elmira , Golinitsky Pavel , Antonova Uliana , Pupkova Darya , Gusev Sergey
Published: June 2023

The article considers the influence of physical methods of disinfection on the complex of microorganisms of grain food raw materials. Various methods of disinfection are considered - chemical, biological and physical, and their influence on the reduction of grain microflora. The classification of the microflora of the grain of cereal crops, the influence of microflora on the quality indicators of vegetable raw materials have been studied. When exposed to microwave energy on the grain, the most optimal modes were identified in terms of temperature, time and heating rate.
Risk analysis within the production process of fish preserves
Authors: Kuptsova Svetlana , Dunchenko Nina , Yankovskaya Valentina , Voloshina Elena , Ginzburg Marina , Mikhaylova Kermen
Published: June 2023

One of the primary tasks for today is the production of high quality and safe products according to the legislation of Russian Federation. There are a number of risks within the production process. The common problem is the heat treatment process. This problem is for fish preserves. Such products can classify as perishable. It is necessary to carefully approach the choice of raw materials and compliance with all technological regimes. Since there is always the possibility of various dangers. In order to minimize dangerous factors, it is important to use a quality method with identifying the most important of them for factors matrix for production process of fish preserves proposed to develop a diagram of quality and safety indicators and identify the most important of them for further use to form a matrix of technological factors that have a direct impact on quality and safety indicators in the production of fish preserves.
Development of a model for the transformation of agriculture in the digital economy
Authors: Sazonov Andrey A. , Sazonova Marina V.
Published: June 2023

The article is devoted to the study of the development of theoretical and methodological aspects of the formation of organizational and methodological tools necessary for the competent and effective implementation of a multi-level strategy for transforming the structure of agriculture in the context of the consistent development of the digital economy. The scientific novelty of the ongoing research is the development of a methodological set of tools necessary for the implementation of the strategy of transformation of agriculture in the innovative economy. The hypothesis of the study assumes that the transformation of the structure of agriculture in the environment of digital transformations cannot be carried out in a short period of time, full implementation is possible only if the transitive approach is integrated, which is considered as an independent stage of the transformation of agriculture. The authors propose a methodology that allows the implementation of agricultural transformation models operating in the context of the transition to the digital economy paradigm, which includes a sub-methodology that allows one to obtain a preventive assessment that shows the level of readiness for digital transformation of various public authorities.
Digitalization in agriculture: experience and prospects
Authors: Andreev Dmitriy
Published: June 2023

Agriculture is a specific industry that is particularly in need of digitalization. This is due to the fact that this industry is exposed to multiple factors, having a number of features, namely: the production process and its results depend on numerous factors, among them not only natural-climatic, biological, soil, but also socio-economic, etc. Moreover, there is a fairly significant variation of these factors in space - time coordinates, which leads to significant management costs; business entities, as a rule, are very dispersed, which, of course, also makes it difficult to develop uniform, equally effective management decisions; within the agro-industrial complex and its spheres, one can observe complex and strong in intensity connections that arise between industries. This is due to the fact that suppliers, buyers, and other counterparties are quite numerous and diverse. All this determines the high relevance of the issues that will be considered in this article. Thus, the following main issues are considered in the article: the essence of digitalization in the agricultural industry; the main problems of digitalization in this industry; experience and prospects.
Optimization of the breeding process of lodging-resistant varieties of spring triticale
Authors: Grebennikova Irina , Stepochkin Petr
Published: June 2023

During the field and laboratory studies, selection samples of spring hexaploid triticale were studied according to breeding valuable traits and physical and mechanical properties of the stem. As a result of the research, an information database was created, which contains information on the study of samples according to economically valuable characteristics, product quality, a set of characteristics of biometric and physical and mechanical properties of the tissue of spring triticale stems. The set of data contained in the database, can be used in the selection of parent pairs for hybridization, selection of valuable genotypes from hybrid populations, in the breeding of new lodging-resistant varieties.
Development of agricultural water supply and sanitation using information technologies
Authors: Alekseev Stanislav , Alekseeva Tatyana
Published: June 2023

The problem of digitalization of agricultural water supply and sanitation is considered. The processes of development of information technologies and the features of their implementation in the activities of construction participants and organizations providing water supply and sanitation in agriculture have been studied. An approach to the creation of an effective system for managing the life cycle of agricultural water supply and sanitation facilities using information technology is proposed. The implementation of the results of the study will help improve the quality of water supply and sanitation services in agriculture and provide conditions for the growth of agricultural production.
Introduction of information modeling technologies in the construction of agricultural facilities
Authors: Alekseeva Tatyana , Alekseev Stanislav
Published: June 2023

Digitalization of all sectors of the national economy including agricultural construction is one of the main tasks. The features of the formation of an information model of agricultural facilities are considered. Problematic issues are identified. A study of the software market for information modeling of such objects has been carried out and recommendations for participants in the construction of agricultural facilities have been proposed. The results of the study will help accelerate the pace of implementation of information modeling technologies in the construction of agricultural facilities.
The content of copper and zinc in the natural environment components of the park areas
Authors: Morgacheva Natalya V. , Dubrovina Olga A. , Shcherbatykh Sergey V. , Sotnikova Elena B.
Published: June 2023

The influence of man-made pollution on the accumulation of copper and zinc in the soil and plants of the forest park zones of Yelets was studied on the example of the woody–plant natural environment components prevailing in them hanging birch (Betula pendula Roth) and creeping wheatgrass (Elytrigia repens). As a result of the conducted studies, the features of the deposition of copper and zinc in the plant organs were revealed, and the total accumulation of the studied elements in the soil under green plantations was estimated.
Global climate change, its consequences and ways to solve the problem
Authors: Yakovlev Valeriy A. , Belyaev Gavril A.
Published: June 2023

Today, the issues of global warming and significant climate change are extremely relevant. They are discussed not only by scientists and politicians, but also by ordinary citizens. It must be understood that this problem really deserves extensive attention. Numerous studies have long confirmed that warming does have an impact on the environment, even at the regional level. If we leave some thoughts about extrapolation in the future, then the usually cited facts on local effects are easily verified by local residents, to a greater extent when it comes to melting permafrost or warm winters. In addition, biospheric effects relating to individual organisms are observed by all of us at the household level and therefore do not raise questions. In the modern world, the climate is changing under the influence of natural and anthropogenic factors. It seems to us that every person should want to preserve the natural conditions in which we live. Within the framework of this article, it is proposed to consider in more detail how this can be done.
Mathematical model of the movement of dust-contained air flows in the air filter of hydraulic systems
Authors: Botirov Tulkin , Abduazizov Nabijon , Sodiqov Bakhtiyor , Khusanov Zafar
Published: June 2023

This article discusses the development of a mathematical model that allows you to set the appropriate parameters of the air filter to ensure efficient air filtration due to the ability to retain fine particles. Based on the developed mathematical model, it is possible to improve the air filtration systems supplied to the hydraulic tank of the hydraulic system of mining hydraulic excavators.
Equation of dynamics of greenhouse microclimate parameters
Authors: Kadirov Yorkin , Samadov Abdukhalil , Goziev Olmos
Published: June 2023

When developing and researching management tasks, a climate model is needed. There are different ways to mathematically describe or predict parameters for controlling a greenhouse complex. Most authors represent the ambient air temperature by a Fourier series or its segment, as well as by trigonometric expressions. This approach makes it possible to use the obtained representation for solving specific thermal and physical problems, as well as for calculating heat and moisture resistance. A mathematical model of greenhouse microclimate dynamics has been developed. The mathematical model describes parameters such as air temperature, relative humidity and soil humidity. The developed model in the form of a differential equation is calculated numerically using the Maple 17.
Methodology of assessment of the effectiveness of scientific-technological modernization of the oil-and-fat industry based on green technologies
Authors: Khakimova Nafisa , Nizamov Aslitdin
Published: June 2023

The article covers the methodology of assessment of the impact of scientific-technological modernization and describes the advantages and disadvantages of traditional assessment methods. The necessity of improving the methodology for assessing the effectiveness of modernization is scientifically substantiated and an approach based on target evaluation criteria that take into account the factors and directions of modernization is proposed. Unlike the existing methods of modernization assessment, this approach includes the direction of environmental efficiency and the "green economy" factor. The model has been developed after the example of the modernization of fat- and-oil industry enterprises, and It is based on the research of the level of influence of interaction between process participants (enterprise, technological community, scientific, educational institutions, innovation centers), state, investors, consumer (population, food enterprises, organizations) and supplier (raw material suppliers, machine-building enterprises) on the provision of efficiency directions (economic, social, ecological and scientific-technical) in interdependence and integrity. The system of assessment indicators is proposed in the model, and a matrix for assessment of the effectiveness of scientific-technological modernization in terms of directions and participants of the process is developed. The proposed methodology can be used to assess the creation of modernized fat-and-oil clusters in regions based on green technology.
The importance of metrology and measurements in the application of drip irrigation in horticulture
Authors: Raxmatov Doston , Qalandarov Alisher
Published: June 2023

The paper describes advantages of drip irrigation in horticulture. The importance of metrology and measurements in the drip irrigation system was explained. The effect of "gross errors" in the measurement results on the system was explained, and the method of further increasing the accuracy by processing the results obtained from measuring instruments and not taking into account "gross errors" was justified by concrete examples and diagrams. The disadvantage of using the conventional method has been pointed out. Using the proposed method, the maintenance of soil moisture in a stable state during the processing of the results obtained from the sensors was considered. This method allows saving a certain amount of water and more accurately measure soil moisture.
Study of the working process of an experimental sample of a safe burner of a household gas stove developed on the basis of moisture-absorbing materials
Authors: Zykin Andrey , Kuznetsova Darya , Sukhanova Inna
Published: June 2023

The most common cause of a household gas explosion in a residential area is a gas leak from the stove burner. Even a small amount of gas can cause a fire with subsequent uncontrolled combustion. The number of explosions on the territory of the Russian Federation in multi-apartment residential buildings associated with the leakage of household gas is growing every year. As a result of the analysis of the designs of existing gas stoves and the main causes of gas leakage, a hypothesis was put forward, suggesting that one of the burner elements should be made of a moisture-absorbing material that can serve as a blocker for the channels of gas entering the environment when wet. The conducted studies have shown the operability of a burner with a working body made of expanded perlite. At this stage of the experiments, the following combination will be the optimal combination of structural elements: the weighted average size of expanded perlite is 0.5 mm, the divider is filled with working fluid by 40%, the number of outlets in the burner cover is 20 pcs.
Scientific bases of control of vibration of hydrodynamic origin in centrifugal pumps
Authors: Bekchanov Fakhriddin A. , Atajanov Adiljan U. , Norov Begmat Kh. , Babajanov Laziz K.
Published: June 2023

The reliability and efficiency of pumps, like any machines and mechanisms, is determined by a number of factors, including their operating conditions and the ability to adapt to changing operating conditions. This article is devoted to the development of scientific foundations for controlling vibration of hydrodynamic origin in centrifugal pumps. The failure of a centrifugal pump due to fatigue failure of a rolling bearing does not occur suddenly and not instantly. First, some signs of the approach of this process appear, the nature of the vibroactivity of the aggregate changes. Against the background of a stable vibration level, some vibration outliers appear. The study of the sequence and intensity of these emissions is important information not only about the approach of the moment of destruction of the rolling bearing parts, but also about the operating time that the operating personnel still have to take measures to eliminate an emergency and complete catastrophic destruction.
Use of a knifeless grinding plant for waste paper recycling
Authors: Marchenko Roman A. , Slizikova Elena A. , Shurkina Valentina I.
Published: June 2023

The article considers the problem of recycling waste paper and the main reasons for the deterioration of paper-forming and physical and mechanical indicators of finished products during recycling of recycled fiber. A study was carried out on the effect of increasing the number of recycling cycles of waste paper of the MS-8V brand on such indicators as fractional composition, breaking length and resistance of paper to punching when using a jet-barrier type knifeless grinding unit.
Crop agro-technologies adaptation in organic farming
Authors: Maksimovich Kirill Yu. , Kalichkin Vladimir K. , Rudoy Evgeny V. , Aleschenko Vitaly V.
Published: June 2023

The materials of long-term field experiments carried out in the forest-steppe of the Ob region of the Novosibirsk region and in the northern forest-steppe of the Kuznetsk basin of the Kemerovo region in various types of crop rotations on leached chernozems were analyzed to assess the possibility of developing organic farming. The most stable crop rotation in relation to weeds is a grain-fallow crop rotation with winter rye, where the coefficient of crop rotation productivity decrease with an increase in infestation by 1 unit of specific weed biomass was 0.205.The number of interstim pests per plant was less on wheat crops placed on vetch-oats, winter rye and rapeseed than on fallow and spring grain predecessors. The most productive crop rotations without the use of fertilizers and pesticides were grain fallow crop rotations with winter rye (2.46 t/ha) and legumes (2.44 t/ha). It has been established that organic farming can only be carried out under conditions of crop diversification (increase in biodiversity within crops of winter rye, cabbage, leguminous grasses and grain legumes), a decrease in the intensity of mechanical impact on the soil, the introduction of organic fertilizers and plant residues of crops, sideration.
Study of bentonites during processing of high color raw cotton oils
Authors: Kamalova Matluba , Amonova Zubayda , Rakhmonov Kakhramon
Published: June 2023

The paper investigates and recommends the multicomponent composition of cottonseed oil subjected to adsorption purification, divided into macro-and micro-impurities, and according to the qualitative composition: into substances that have an acidic, coloring and unsaponifiable nature. The authors come to the conclusion that it is necessary to develop a combined thermally differentiated capable of purification on local activated sorbents.
Development of boring solutions produced from using compositions of clay minerals and surface-active substances from raw fatty acids of cotton soap stock
Authors: Bazarov Gayrat , Gaybullaev Saidjon
Published: June 2023

The article studies the physical and chemical properties of water glycerin to obtain various types of surface-active substances for use as additives to boring solutions. The addition of technical glycerin to the composition of surface-active substances obtained from raw fatty acids of cotton soap stock at oil and fat enterprises contributes to a significant improvement in their surface-active properties. A water solution of glycerin to a certain extent increases the surface-active properties of the developed soap-like surface-active substances. The qualitative indicators of the composition of surfactants obtained with different ratios of a water solution of glycerol of liquid and ointment fractions of raw fatty acids of cotton soap stock were studied for their use in the process of drilling oil and gas wells. Analyzes of the developed compositions of were carried out in the preparation of drilling fluids from alkaline bentonite, alkaline earth bentonite and carbonate palygorskite, as well as double and triple compositions. A comparative analysis of the main indicators of drilling fluids, as well as surface-active substances synthesized from the greasy fraction of raw fatty acids of cotton soap stock, showed the greatest stability of boring solutions at high temperatures and salinity of formation waters.
Determination of water adsorption mechanisms in NH4ZSM-5 and НZSM-5 zeolites
Authors: Abdulkhaev Tolibjon , Kuldasheva Shakhnoza , Rakhmatkarieva Firuza , Isanova Rakhima
Published: June 2023

This article covers the results of a study on the determination of the differential heat, isotherm and entropy of water vapor in ZSM-5 zeolites at a temperature of 303 K using the adsorption-calorimetric method. The type and number of ion-molecular formed complexes, as well as the mechanism of adsorption of the studied molecules, were determined. By studying their energetic properties, it is possible to determine the chemical composition and crystal structures of the zeolites. The adsorption isotherm was described by two-and three-had mathematical equations of the TVSM (the theory of volumetric saturation of microgroups) from the beginning to saturation. An analysis of the obtained results proved that NH4ZSM-5 and NZSM-5, which are used as catalysts, can be used as zeolites.
Universal calibration for natural polysaccharides in aqueous Size-exclusion chromatography
Authors: Boymirzaev Azamat
Published: June 2023

This article shows the validity of the Universal calibration concept in aqueous Size-exclusion chromatography for arabinogalactan and carboxymethylchitosans is presented. The electrostatic effects of these polysaccharides during separation process were eliminated by utilizing of a water-salt eluent as a mobile phase, and the size-exclusion separation mechanism of this method was realized.
Investigation of isotherms of differential heat-entropy adsorption of carbonyl sulfide in CaA zeolite during gas purification
Authors: Mamadjonova Mohfora , Olimjon Nuridinov
Published: June 2023

The task of this research cycle was to measure adsorption isotherms (а) in the temperature range from 273 to 373 K, based on isotherms measured at different temperatures, to calculate isosteric heats (Qd) and entropies (∆Sd) of adsorption in order to select an effective adsorbent for purifying natural gas and oil products from sulfur-containing compounds. This article presents the results of studies of the isotherms of COS adsorption on CaA, carried out at four temperatures: 273, 298, 303, and 373 K, and the corresponding thermodynamic functions of adsorption in CaA zeolite.
Isotherms of differential heat and entropy adsorption of carbonyl sulfide in zeolite NaX when cleaning gases
Authors: Ergashev Oybek , Nuridinov Olimjon
Published: June 2023

The task of this research cycle was to measure adsorption isotherms (а) in the temperature range from 273 to 373 K, based on isotherms measured at different temperatures, to calculate isosteric heats (Qd) and entropies (∆Sd) of adsorption in order to select an effective adsorbent for purifying natural gas and oil products from sulfur-containing compounds. This article presents the results of studies of the isotherms of COS adsorption on NaX, carried out at four temperatures: 273, 298, 303, and 373 K, and the corresponding thermodynamic functions of adsorption in NaX zeolite.
Optimization of the design parameters of the sprayer rotary device for the chemical treatment of the near-stem zone of fruit trees
Authors: Tsybulevsky Valery , Tarasenko Boris , Troyanovskaya Irina , Voinash Sergey , Zagidullin Ramil , Kiyamov Ilgam , Sabitov Linar
Published: June 2023

Spraying with herbicides allows you to successfully control weeds. When processing perennial plantations of fruit and berry crops, a certain problem is bypassing the tree trunk. To ensure the quality of soil cultivation in the near-stem areas, a sprayer design with a rotary device was developed. The novelty of this design is confirmed by the patent of the Russian Federation. In the theoretical aspect, a study was made of the uniformity of surface treatment of near-stem zones. As a result, the dependence of the treatment area of the near-stem zones on the diameter of the boles, the distance between them and the angle of rotation of the sprayer's working body was obtained. The uniformity criterion was the maximum area of processing and the minimum area of double processing of the zone near the bole. The optimal initial installation angle of the working body was 58°…60°.
Improving a no-failure operation of a PV systems with grid inverters for agricultural regions
Authors: Medyakov Andrey A. , Lastochkin Denis M. , Ostashenkov Aleksey P.
Published: June 2023

The growing interest to the use of power generating complexes based on renewable energy sources has been witnessed recently. It necessitates the need to improve the no-failure operation of such complexes. The highest failure rate is typical for the string inverter in grid-connected PV systems. The failure of the string inverter induces supply termination of electrical energy to the grid. The paper explores an approach to improve the no-failure operation of the process of electrical energy distribution by a PV system to the grid driven by the use of micro inverters. The authors used the logical-probabilistic method to assess the no-failure operation of the PV system. Thus, the authors obtained the expressions to calculate the probability of failure for PV systems, enclosing a string inverter, and micro inverters.
Selection and justification of the optimal multifunctional design of the unit for the preparation and distribution of liquid feed mixtures in animal husbandry
Authors: Solonshickov Pavel , Tolstoukhova Irina , Shevchenko Artem
Published: June 2023

The article deals with the problem of using various installations for mixing and preparing liquid feed mixtures in animal husbandry. The analysis of domestic and foreign installations capable of performing this function is carried out. But during the review process, many shortcomings and problems were identified that needed to be solved by developing a new design that would eliminate all the identified problems. Therefore, the design of two installations in horizontal and vertical versions is proposed, while the values of their pressure-energy (hydraulically) characteristics are given. This allowed us to determine their further expansion of functionality. This is how the process of drinking and feeding was considered, using experimental installations. The parameters for each livestock room are analytically calculated, which shows the effectiveness of the use of experimental installations.
Bio-fuel ignition delay research
Authors: Vallejo Maldonado Pablo Ramon , Devyanin Sergey , Markov Vladimir , Neverov Vsevolod , Shlenov Matvey , Spiridonova Larisa
Published: June 2023

The relevance of this study is due to the need to replace petroleum diesel fuel with motor fuels obtained from alternative raw materials. Rapeseed oil and ethyl alcohol are considered as promising alternative fuels. The use of these biofuels as a motor fuel makes it possible to solve the problem of reducing carbon dioxide emissions into the atmosphere and switch to carbon-neutral energy. The possibility of using mixtures of these fuels as motor fuel for a diesel engine is considered. Poor flammability of these fuels in the combustion chamber of a diesel engine was noted. The created installation allowing to carry out experimental studies of the ignition delay period of various fuels for diesel engines in the conditions of the engine stand is described. Four types of fuel were studied at this installation – petroleum diesel fuel, rapeseed oil, an emulsion of rapeseed oil and ethyl alcohol in a ratio of 90:10 and an emulsion of rapeseed oil and ethyl alcohol in a ratio of 70:30. The kinetic constants of ignition of these fuels have been determined. A significant dependence of the duration of the ignition delay period on the type of fuel used was noted.
Power supply installation for remote rural settlements with solar thermoelectric generator
Authors: Khimenko Aleksei , Tikhomirov Dmitry , Trunov Stanislav , Ukhanova Victoria
Published: June 2023

An analysis of scientific studies has been carried out, which presents thermoelectric technologies based on solar energy that can satisfy not only the need for electricity generation, but also contribute to energy saving and environmental protection. The results of theoretical and experimental studies on the development of power supply systems based on thermoelectric generators in combination with photovoltaic panels, solar concentrators and heat pipes are also presented, allowing us to conclude that the creation of solar thermoelectric generators is relevant. The authors have developed a design and presented a description of the power supply installation operation with a solar thermoelectric generator and heat pipes transmitting thermal energy from a solar concentrator through a solid-state thermal storage to a thermoelectric generator. Expressions are given for calculating the main thermal characteristics of the elements of the proposed installation with a solar thermoelectric generator (solar concentrator and solid-state thermal storage), as well as the efficiency factor and output electric power of the thermoelectric generator.
Dynamics of the number of hunting animals in the area of the alleged flooding of the Nizhneboguchanskaya HPP
Authors: Buyanov Ivan Yu. , Zhilenko Natalya A. , Shestak Kira V.
Published: June 2023

The forecast of changes in the biodiversity of fauna in the zone of expected influence of regulated water bodies is based on the basis of monitoring of hunting resources. A list of the main game animals of the Boguchansky district of the Krasnoyarsk Territory has been compiled. Winter route surveys were carried out on the right and left banks of the Angara River in the zone of alleged flooding during the construction of the Nizhneboguchanskaya HPP. The number of commercial species and its dynamics for three years were revealed. Species-specific essays have been compiled that characterize the abundance of the animal in the study area with predictive changes in ranges and population density. Recommendations are given on measures to minimize the anthropogenic impact of the HPP construction.
Polymorphisms associated with resistance to infectious diseases in different breeds of pigs of the Belgorod Region of Russia
Authors: Snegin Eduard A. , Sychev Anton A. , Artemchuk Olesya Y. , Barkhatov Anatoliy S. , Snegina Elena A. , Yusupov Sergey R. , Yusupova Aleksandra Y.
Published: June 2023

Using the PCR-RFLP method, we genotyped pigs for the genes GBP1 (mutation c. [10A>G; 11A>G]), FUT1 (mutation G307A) and MUC4(A243G) associated with resistance to infectious diseases. A total of 188 boars of four breeds (Duroc, Large White, Landrace and Yorkshire) from the Belgorod Region of Russian Federation were studied. The highest frequency of favorable genotype AG for the polymorphism GBP1E2, which is resistant to pig respiratory syndrome, was characterized by the Duroc breed (0.38). The highest frequency of Eischerichia coli F18-resistant AA genotype was observed in the Landrace population (0.19). And in terms of resistance to E. coli with fibrium type F4 (K 88), the highest frequency of favorable genotype GG is characterized by the breed Large White (0,23). In general, it can be noted that genetic resistance in the studied boars is observed predominantly only to one infectious disease.
Vertical stratification and dynamics of insect communities in deciduous forests (Center of European Russia)
Authors: Ruchin Alexander
Published: June 2023

The vertical distribution of insects was studied in deciduous forests of the temperate zone (the center of European Russia). During the research, 81342 individuals from 10 insect orders (Dermaptera, Blattodea, Hemiptera, Hymenoptera, Coleoptera, Neuroptera, Trichoptera, Lepidoptera, Diptera, Mecoptera) were collected. Diptera, Lepidoptera and Coleoptera were the most numerous. The total number of Coleoptera and Diptera was higher at an altitude of 1.5 m, and Lepidoptera prevailed at an altitude of 12 m. Species from the orders Hymenoptera, Dermaptera, Neuroptera and Trichoptera dominated the tree crowns. The number of Blattodea was higher in the lower tiers of the forest. The seasonal dynamics of the number of insects in traps tended to increase significantly by September. But each order had its own dynamics of numbers during the season.