bluuebunny/crossref_metadata_2025 huggingface dataset:
Development of a comprehensive performance appraisal instrument using Behaviorally Anchored Rating Scales and Fuzzy TOPSIS
Authors: Kurniawan Dwi , Al-Faqih Hudzaifah , Raisy Luqman Wahid
Published: February 2024

Performance appraisal is an important phase in human resource management where organizations assess the job performance of their employees. A good performance appraisal needs to be fair, objective and constructive, be based on specific examples of the employee’s work, and should provide clear and actionable feedback. The appraisal should also be timely, and it should be used to help the employee develop and improve their performance. In this paper, we developed a comprehensive performance appraisal for use in various manufacturing industries. Assessment criteria for the instrument were identified using Behaviorally Anchored Rating Scales (BARS) based on specific examples of behavior to assess employee performance. The criteria were weighed using Analytical Hierarchy Process (AHP), and then used to evaluate employee’s performance using Technique For Order Preference By Similarity To Ideal Solution (TOPSIS). Two case studies were selected as the implementation of the developed instrument. We claimed that the proposed instrument was objective, comprehensive, accurate, motivating and much better than the existing performance appraisal instrument currently used in both case studies.
Optimal Enhancement Of Hardness, Hydrophobicity, And Surface Durability Of Pu-Coated Galvanized Material Jis G3302 With Polysilazane Nanomaterial
Authors: Irwan Yusril , Arnaldo Muhammad Hans , Arryana Isda Duifa , Ensrodyasmoko Christophorus Chrisangga
Published: February 2024

Organic Polysilazane (OPSZ) nano-coatings are applied to the surface of polyurethane car body paint (pu-coated) to improve the hardness, hydrophobicity and durability of the Pu-coated surface. Three types of nano-coatings are used under the brand name Durazane®1500 Rapid cure in the formulas Tutoprom® 3641 and Tutoprom® 3042, along with Nano Coating brand Autoproo under Autoproo. The coating process to the substrate is done using a suede cloth with a wiping method. The coating was done in 1 layer with a dry time of 10 minutes to continue to the second layer. After coating, hardness testing was carried out using pencil hardness and hydrophobicity with Contact Angle measurement. Tests were carried out with curing times of 1 day, seven days, 17 days, and 21 days. To determine the durability, the specimens were left outdoors (exposed to rain and hot sun) for 21 days. Durazane® 1500 Rapid cure in Tutoprom® 3641 and Tutoprom® 3042 formulas increased the hardness up to the H scale, while the Autoproo brand has HB hardness value. Tutoprom® 3641 and Tutoprom® 3042 formulas can cause a taro leaf or hydrophobic effect with a contact angle of 104,5°. From the SEM results, the nano-coating can increase the thickness value and fill the substrate’s pores perfectly, increasing the adhesivity and protecting the pu-coated for a long time. High durability, where after 21 days, the coating still looks glossy and dust-free.
Effect of Price, Risk, and Service Quality to Customer Satisfaction by Considering Demographics as a Moderating Variable in A Coffee Shop Business
Authors: Pardede Riza Arnita Sela , Liansari Gita Permata , Mukti Yoanita Yuniati
Published: February 2024

Customer satisfaction is one aspect that needs to be considered to win the competition. Currently, competition occurs in the coffee shop industry in Indonesia. Previous research states that customer satisfaction is influenced by variables including price, risk, service quality, and demographics as moderating variables. The purpose of this study is to examine the effect of price, risk, service quality, and demographics on customer satisfaction using PLS-SEM. The object of this research is a coffee shop in Pekanbaru, Riau City. The data collection technique used was a questionnaire. The number of research respondents was 218. The test results show that price, risk, and service quality have a significant positive effect on customer satisfaction. Price has a significant positive effect on risk and service quality. Meanwhile, demographics do not moderate the relationship between price, service quality, and customer satisfaction.
Improvement Of Maggot Drying Machine Using the Verein Deutsche Ingenieuer (VDI) 2222 Method
Authors: Yuniar Sri Suci , Prassetiyo Hendro , Aurellia Shafa
Published: February 2024

Maggots are the larvae of Black Soldier Flies (BSF) that consume organic waste and offer various benefits, one of which is using dried maggots as livestock feed, such as poultry and fish. Currently, maggots are dried using manual methods involving stoves and kettles, microwaves, and rotary maggot drying machines. However, each of these three methods has its own shortcomings. There is a need for the redesign of an effective and efficient maggot drying machine that produces high-quality maggots. The designed maggot drying machine combines principles of both rotary and oven drying. The redesign process of this maggot drying machine follows the Verein Deutsche Ingenieure (VDI) 2222 methodology. The research sequence includes problem formulation, literature review, data collection, improvement concepts, machine design, cost calculations, and analysis, which involves comparison with the previous machine, durability testing, and machine maintenance. The machine design utilizes the rotary principle to ensure even drying, while the oven principle allows for temperature control to obtain good-quality maggots that meet the needs of maggot enthusiasts.
Local Guitar Position Mapping Based on Consumer Preferences and Perceptions Using Multidimensional Scaling
Authors: Setyo Rukmi Hendang , Almamalik Lukmanulhakim , Naufal Fadilah Anas
Published: February 2024

The potential of the acoustic guitar market in Indonesia has attracted the interest of local businesses in the home industry to create and promote their own acoustic guitar brands within the country. To ensure the appeal of their guitar products to consumers, these businesses must carefully consider product attributes that align with consumer tastes and needs. Conducting a thorough analysis of competitors is also crucial, helping identify strengths and weaknesses to develop effective marketing strategies. Local brands such as Genta, Grande, Stranough, and Avirama have established positive brand images among Indonesian consumers. Recognizing the impact of a strong brand image on consumer loyalty, it is advisable for home industry entrepreneurs to differentiate their acoustic guitars from existing local brands. This research aims to identify the specific attributes that resonate with the tastes and needs of domestic consumers and to position Genta, Grande, Stranough, and Avirama brand acoustic guitars as a reference for designing marketing strategies. The study utilizes the 4P marketing mix approach to identify consumer preferences, collecting data through a questionnaire and applying the Multidimensional Scaling method for analysis. The results highlight that sound quality, price-to-quality ratio, material quality, warranty, ease of purchase, price flexibility, discounts, and completeness of features are crucial factors influencing consumers’ choices in acoustic guitars. Genta excels in price-to-quality ratio, material quality, ease of purchase, price flexibility, and completeness of features. Grande stands out for sound quality and discounts, while Avirama leads in warranty offerings. Stranough shares a similar market segment with Genta due to comparable consumer perceptions, Grande and Avirama occupy distinct segments. This comprehensive understanding of consumer preferences and brand positioning can guide home industry businesses in formulating effective marketing strategies for their acoustic guitar products.
Development of descriptive analysis module within a cloud-based quality analyser: Case study in a guitar industry
Authors: Raihanah Razita , Arif Fahmi , Muhammad Baisa Said
Published: February 2024

Along with the revolution of the manufacturing world, companies face a new challenge to continuously improving their production processes to meet the escalating demand for high-quality goods in a fiercely competitive market. The previous concept of Cloud-Based Quality Analyzer (CQA) can be used as a real-time monitoring software that provides information of the on-going process. This concept can be implemented as an effort to achieve high quality manufacturing. This study aimed to develop the descriptive analysis module to realise the concept of CQA and evaluate its ability in realising online quality monitoring process. By employing the waterfall methodology, this study developed and implemented the descriptive analysis module in the CQA environment. The module was implemented in a case study in guitar manufacturing. The result showed that this module worked perfectly in displaying the multivariate process control chart and successfully gave the warning when some processes were in out-ofcontrol state. Furthermore, the user acceptance test also showed a positive response from the users. The descriptive analysis module was believed able to enhance the quality of manufacturing process while reducing the dependencies to the human quality engineers. However, more case studies in various industries were required to evaluate the benefit of implementing this module.
Enabling Predictive Analysis in the Cloud-Based Quality Analyser: A Case Study in the Guitar Industry
Authors: Pratama Mochammad Rio Dwi , Arif Fahmi , Irianti Lauditta
Published: February 2024

The cloud-based quality analyser (CQA) is a conceptual framework that has been proposed to perform quality analysis in manufacturing by reducing the dependency to the human quality engineer with respect to faster and more accurate information. The manufacturing industry is currently experiencing significant growth due to increased digitization and automation. The problem arises when facing large volumes of data that need to be processed quickly, leading to a decrease in prediction accuracy. This research aims to develop a predictive analysis module to be implemented in the CQA that was able to perform data preparation, model building, and evaluation. By employing the waterfall methodology, this study developed and implemented the descriptive analysis module in the CQA environment. To assess the module’s effectiveness, a case study was carried out in the context of guitar manufacturing. The outcomes indicated that the module performed effectively in developing a quality prediction model using historical data. Additionally, the user acceptance test affirmed the module’s acceptability among users. However, to fully gauge the benefits of implementing this module, further case studies across various industries are necessary.
Use of Artificial Intelligence Methods for Modelling of Drying Processes
Authors: Farkas Istvan
Published: February 2024

In the course of drying process one of the main problems is to exactly determine the moisture content in the material bed. The measurement is an option, but its accuracy is not satisfactory. Another way to determine the moisture distribution is to use physically based or blackbox models. Physically based models give a moderately good result, but it normally takes a great effort to identify their parameters, and to solve the model itself. Derivation of the classical black-box models seems to be an uncomplicated approach. However, the application of such models is mainly limited mainly for process control. Therefore, this paper overviews the application opportunities of the use of artificial intelligence methods. Among those methods (neural network, Fuzzy modelling, genetic algorithm, etc) the main emphasize is given to the use of artificial neural network (ANN) modelling especially for grain drying as a widely applied dehydration technology. A methodology is given to the selection aspects of neural network structure and specifically to the main influencing model parameters as sampling time, randomised training, different training algorithms, number of hidden neurones, number of linked data series and type of validation data. Based on the recent study, it is concluded that the ANN can be used during effectively in case of post-harvest processes especially for estimation the temperature and moisture content distribution.
Web Accessibility Evaluation Using WCAG 2.0 and User-Centered Design Method
Authors: Putra Kurnia Ramadhan , Umaroh Sofia , Rafina Nuralia
Published: February 2024

ITENAS e-learning has problems such as the flow of access to complex features, and the color of the display and buttons that overlap with the background color. The design of the web interface in this study uses the WCAG 2.0 standard. With the success points of Criterion 1.4.11 Non-text Contrast in the Produce Design Solution stage in the User-Centered Design method. The results of the WCAG 2.0 test show the highest contrast ratio of 15.16:1 which has met the required contrast ratio, the criteria are successfully applied. In the design evaluation stage, this study used SUS to test the usability of the prototype. User experience testing in this study uses UEQ. The results of the evaluation of the usability of the interface with SUS in the initial test resulted in a score of 38.93 which was in grade F or bad to grade B with a score of 74.38 or good after the redesign process. The results of user experience testing with UEQ obtained an average Efficiency scale of 1.875. The Attractiveness scale is 1.667, the Clarity scale is 1.750, the Accuracy scale is 1.375, the Stimulation scale is 1.525, the last is the Novelty scale of 1.350 according to the UEQ average scale which is at a positive level. From the results of the two SUS and UEQ tests, the Usability aspect and the User Experience aspect of the Itenas e-learning web can be said to have improved.
Eco-friendly Nanocatalysts: Unleashing Non-Precious Metal Potential for Methylene Blue Remediation
Authors: Parapat Riny Yolandha , Maulani Yuni , Fatimah Gina Nur , Haryanto Freddy , Tasbihi Minoo , Schwarze Michael , Schomäcker Reinhard
Published: February 2024

Water pollution stemming from textile dyes, particularly methylene blue (MB), represents a formidable challenge to both the environment and human well-being. In response to this pressing issue, scientists have redirected their focus toward eco-friendly nanocatalysts as a viable remediation strategy. Nanocatalysts crafted from precious metals like platinum, palladium, and gold have indisputably demonstrated their efficacy in combatting water pollution. Nonetheless, their restricted availability and substantial costs have spurred investigations into non-precious metal-based nanocatalysts. Research outcomes have revealed that non-noble metal (FeNi)-based nanocatalysts, synthesized using natural reductants, exhibit highly promising performance in degrading methylene blue. These alternatives not only deliver impressive efficiency but also incur lower production expenses compared to their noble metal counterparts. The ecological benefits inherent in these nanocatalysts offer a sustainable means of mitigating water pollution attributed to textile dyes. Through detailed synthesis experiments, precipitation-assisted method demonstrated a slightly superior yield of 69.11% with catalytic activity of 16260 μmol MB/gNiFe.
Effect of Number of Blades with Turbine Efficiency for Radial Turbine
Authors: Mahardika Mohammad Azis , Hidayat Fery , Sirodz Muhammad Pramuda Nugraha
Published: February 2024

Radial turbines are pivotal components in various engineering applications, playing a fundamental role in power generation, propulsion systems, and energy conversion processes. The efficiency and performance of these turbines are influenced by numerous design parameters, with the number of blades being a critical factor affecting overall efficiency. In this research, the effect of the number of blades is observed by using the numerical approach with CFD software. First, a turbine is designed, which refers to operational conditions. Next, the blade model is created by using blade design software. Then, three cases with 10,13 and 15 blades are conducted and simulated. The result shows that more blades give more power because more surface to extract the energy from the fluid.
Energy Potential from Waste Activated Sludge in Domestic Wastewater Treatment Plant South Jakarta
Authors: Elisa Marlita , Dwi Maulidiany Nopa
Published: February 2024

Wasted activated sludge (WAS) a byproduct of wastewater treatment, holds significant untapped energy value. Conventional practice in DKI Jakarta involves collecting and directly disposing of WAS into landfill sites, overlooking the potential benefits of the sludge. Anaerobic digestion (AD) is a sustainable process that converts organic matter in the absence of oxygen offering a promising solution to harness this potential. The study aims to emphasize waste into energy by analyzing the volume of biogas through the Biochemical Methane Potential (BMP) value of WAS from the domestic WWTP in Setiabudi, South Jakarta. Characterization of WAS and its suitability for AD will be explored using DIN standards for 21 days. The experiment was duplicated into variants I1 and I2 and the parameters tested were pH, COD, TKN, VS, TS, concentration and volume of methane gas. In this study, the biogas yield from WAS obtained at 54,98 and 89,62 ml CH4/g VS along with the composition of biogas determined through GC readings at 61,78% CH4 and 56,08% CH4 from I1 dan I2, respectively. By optimizing AD processes, this study seeks to contribute to sustainable waste management and renewable energy production. Further research is needed regarding pre-treatment that may influence the formation of biogas.
The influence of biological preparations and micronutrients on the productivity of winter wheat
Authors: Drepa Elena , Pshenichny Roman , Golub Anna , Ponomarenko Marina , Mukhina Olga
Published: February 2024

The research was carried out in order to evaluate the effectiveness of the use of biological preparations and micronutrients both separately and when used together to form the quality of winter wheat grain in the conditions of unstable humidification zone of the Stavropol Territory. The work was carried out in 2020-2022 in the fields of the experimental station of the Stavropol State Agrarian University on leached chernozem. The experience is two-factor, the repetition is three-fold. The experience scheme includes 10 options. As a control, an economic option was adopted (the technology of winter wheat cultivation recommended by scientific institutions of the region). In the experiment, biological preparations and micronutrients were studied both independently and with their joint use (factor A). The studied biological preparations and micronutrients were used during seed pickling and on vegetating plants during spring tillering and the formation of a flag leaf (factor B). The applied preparations, when used together, provide an increase in yield by 0.53 t / ha, forming a grain of the fourth class.
Innovative aspects of increasing the yield and quality of corn grain in Western Siberia
Authors: Albert Maxim A. , Galeev Rinat R. , Petrov Dmitry D. , Smirnov Anton E.
Published: February 2024

The results of three years of research (2021-2023) to study the effectiveness of using growth stimulants on corn when grown for grain are presented. It has been shown that on leached chernozem in two ecological points of the Novosibirsk Ob region TPP “Praktik” of the Novosibirsk region, CJSC breeding plant “Irmen” of the Ordynsky district of the Novosibirsk region, growth stimulants increased the growth rate and development of corn when grown for grain. In experiments, the effect of growth stimulants on the yield and quality of grain of three F1 corn hybrids of early ripening was studied: Kubansky 101, Kubansky 102 and Katerina. Growth stimulants were used by pre-planting seed treatment, spraying in the fourth leaf phase and at the beginning of flowering of corn plants. Growth stimulants increased the yield of corn grain by 33% relative to the control (water) in the hybrid Katerina F1. A significant improvement in the biochemical composition of corn grain was noted with the use of growth stimulants: an increase in protein content by 0.4-0.8%, BEV and fat.
Assessment of the influence of soil parameters on the work process of a forest plow for the microhill formation based on formalized modeling
Authors: Druchinin Denis , Kamalova Nina , Popov Maksim , Zimarin Sergey
Published: February 2024

Taiga boreal forests growing in the Northern Hemisphere of our planet have an exceptional function of preserving the carbon balance on a global scale. However, active logging leads to the need for reforestation in these forests, including in areas with soil overwetting. The aim of the study is to model of the movement of the formation on the working surfaces of a forest plow used for the formation of linear microhill. For a theoretical study of the forest plow working process, a formalized mathematical description of the interaction of the plow working surfaces with the soil environment was performed. The research work with the model consisted in the implementation of simulation experiments to simulate the process of creating a linear microhill by a forest plow. According to the results of the research, the regularities of the influence of the contact of the plow bottom surface with the soil during its turnover on the amount of mass moved for lay-down in microhill per unit of time were obtained. Another series of simulation experiments made it possible to estimate the dependence of the crossing profile of microhill on soil moisture, taking into account the approach angle of the spherical disk.
Theoretical and experimental determination of the dimensions of the slope and length of the feed distribution device for family livestock farms
Authors: Khudaynazarov Dilshod Kh. , Umarov Uygun E. , Yunusova Maftuna U. , Ungboyev Anvar M.
Published: February 2024

The livestock sector in family livestock farms is characterized by high productivity despite the small number of livestock and low consumption costs. But one of the main problems in these farms is the primitiveness of production and the high level of manual labor due to the lack of equipment suitable for their needs and requirements, including feed distribution devices. Taking into account the above, a small-sized, low-metal and energy-intensive resource-saving feed dispenser for family livestock farms was developed and its parameters determined.
Formation of yield of various soybean varieties in Kabul conditions
Authors: Hakim Osmani Mohammad , Farhad Maryam , Belopukhov Sergey , Seregina Inga , Trukhachev Vladimir , Dmitrevskaya Inna
Published: February 2024

The research examined the adaptive abilities of different soybean varieties when grown at a permanent research site at Kabul University. The soil of this study site is a saline loam mixture with a pH of 8.01 and an EC of 0.17. Mineral nutrition conditions were created by introducing complex fertilizer diammonium potassium phosphate and urea. The plots were located randomly on the experimental plot. The studies determined plant height, number of pods in plants, number of grains in a pod, plant yield and some morphological traits. During the growing season, nitrogen concentration was determined by the chlorophyll content in leaves using an N-tester SPAD 502 Plus, manufactured in Japan. The highest yield was observed in soybean variety Mangpong5 (1742 kg/ha), and the lowest yield was obtained in soybean variety Stine 3400-2 (1521 kg/ha). The results of statistical analysis of the research results using ANOVA showed the most significant difference in the yield of Mangpong5 varieties and other soybean varieties.
Optimizing the protection of winter wheat from phytopathogens to obtain a healthy harvest
Authors: Bezgina Yuliya , Glazunova Natalia , Shipulya Anna , Volosova Elena , Pashkova Elena
Published: February 2024

The article deals with the results of production comparative experiments of fungicides applied in the flowering phase of winter wheat in the Stavropol region in the zone of unstable humidification. It was found that the maximum biological efficiency against fungal diseases within 24 days fungicides containing active substances prochloraz + tebuconazole and diphenoconazole + tebuconazole possess. The highest yield was obtained in the variant where we applied fungicide with active substances prochloraz + tebuconazole with a rate of consumption of 1.2 liters / ha 69.2 kg / ha this is 2.7-7.7 kg / ha more than in other variants. It was found that the mass of a thousand grains is directly correlated with yield, in the variant with the use of fungicide with active substances prochloraz + tebuconazole the mass of a thousand grains was the maximum 45.4 grams. Phytoexpertise of seeds showed that the lowest content of fusarium grains was in the variant with the use of fungicide with active substances prochloraz + tebuconazole. Not high content of fusarium grains 1.7-2.0 % was in the variants where we treated with fungicides containing active substances diphenoconazole + tebuconazole and spiroxamine + prothioconazole.
Comparison of hardness of drinking water and morbidity of population consuming water from infiltration water intake
Authors: Yalaletdinova Alina , Malkova Maria , Kantor Evgeny
Published: February 2024

The link between the total hardness of drinking water and the primary and total population turnover in polyclinics of the city, located on the territory supplied with drinking water from the infiltration water intake, for some diseases (malignant neoplasms, blood diseases, endocrine diseases, diseases of the circulatory system, respiratory diseases, digestive diseases, skin diseases, diseases of the musculoskeletal apparatus, diseases of the genitourinary system, congenital deformities) was searched. Different manifestations of links between diseases of the population and the available level of water hardness of the infiltration water intake zone were revealed.
Ginger root as a source of biologically active substances
Authors: Saribaeva Dilorom , Kurbanov Nematilla , Atamirzayeva Sohiba , Yakubzhanova Yakutkhan
Published: February 2024

During the study, the biological active substances included in its composition are extracted from the working root crop (Zingiber officinale) by aqueous and ethyl alcohol extraction. The amount of vitamins, macroand microelements and amino acids in the extracts is determined and the results obtained are analyzed. Biologically active substances contained in the plant were extracted with water at temperatures of 30, 60, 90°C, and its juice was extracted by the water-alcohol method. The amount of macro- and microelements, vitamins, amino acids in the extracts was determined.
Mathematical modeling of obtaining cocoa butter substitute based on its comprehensive quality indicator
Authors: Bafoeva Guljamol , Kayimov Fazliddin , Berdieva Zulfiya , Ismatov Sunnatullo
Published: February 2024

Vegetable oil is fundamentally different from other available products in its composition, components and other properties. Selection of optimal technological modes for producing a cocoa butter substitute based on its complex quality indicator. Therefore, it is important to conduct scientific research to improve quality. The complexity of the mechanism of the processes of hydrogenation and interesterification of cottonseed oil gives preference to mathematical models obtained by processing statistical data. Recommended purification methods differ from existing ones in priority and convenience. The problem of obtaining a cocoa butter substitute from vegetable raw materials is becoming very urgent. Optimal technological modes and compositions of processed raw materials for the processes under consideration.
Reducing the vibration excitability of a metal plate by applying variable vibrodamping inserts
Authors: Asminin Viktor F. , Sazonova Svetlana A. , Samofalova Alevtina S.
Published: February 2024

Thin-walled steel structures of process equipment and vehicles composed of plates are constantly agitated and become powerful sources and conductors of acoustic vibration. To reduce acoustic vibration, special vibrodamping coatings are usually applied to the plate surface by gluing or spraying. However for many engineering applications, concerned with reduction of acoustic vibration, the use of vibrodamping coatings is limited or impossible for a number of reasons, namely, the variability in geometric surface configuration of thin-walled steel structures, stringent restrictions of structure weight (e.g. in hovercrafts) and others. An alternative solution is the use of piece vibrodamping rubber inserts, applied to the plate through perforation. The inserts can be made either solid or with inner channel for free shift of extra weight in the form of a ball. The paper summarizes the results of experimental studies on reducing the loss factor for vibration excitability of plates with inserts.
Study of the ability of organic and mineral sorbents to sorption of secondary Fusarium metabolites
Authors: Valiullin Lenar , Mukhammadiev Rishat , Saifullin Almaz , Semenov Eduard , Vagin Konstantin , Raginov Ivan , Mingaleev Danil , Budynkov Nicolai , Demin Dmitry , Sevastyanov Michael , Baryshev Michael
Published: February 2024

This paper presents research on the study of the adsorption properties of sorbents of mineral and organic origin. From the research results, it was seen that the maximum adsorption properties for zearalenone at room temperature of 19-21 ° C and pH 7 were shown by sorbents: bentonite of the Biklyansky deposits 34.7%, bentonite of The biklyansky burned 25.3%, bentonite of the tarn-Varna deposits 31.4% Mycosorb 65.7%, Phytosorb 57.5%, zeolite 27.3%, Zookarb 21.2% showed the lowest sorption capacity for zearalenone. In relation to the T-2 toxin, the adsorption properties of sorbents at a temperature of 19-21 ° C and pH 7 showed: Phytosorb 57.5%, bentonite of the Biklyansky deposits 51.7%, bentonite of the tarn-Varna deposits 57.4%, Mycosorb 55.7%, Zoocarb 43.8%, zeolite 36.2%, bentonite of the biklyansky fired 31.4%. According to the results of research, it can be concluded that when the average temperature increases from 20-21 ° C to 38-39 ° C, sorbents significantly increase the adsorption of toxins from 50-70% by such sorbents as phytosorb, Mycosorb, bentonite of the Biklyansky Deposit.
Preliminary results of automatic cotton crops mapping using remote sensing data
Authors: Gulyaev Rinat , Sultonov Azamat , Yunusov Ravil , Rafikov Damir , Gulyaeva Kamila , Kimsanbaev Oybek , Kakhkhorov Bakhtiyor
Published: February 2024

The paper presents the results of application of the method of automatic generation of representative and unbiased set for in-season cotton crop mapping, based on crop simulation model, previously parameterized using ground truth and satellite data. The method provided confident mapping of cotton fields without using actual ground-truth information or apriori information about their in-season phenology. Overall mapping accuracy calculated using relevant ground truth data for cotton fields has reached 95.6 %. Consideration of time series of NDVI values as a model of phase characteristics allowed using relatively simple criteria to identify typical representatives of the selected crop on the basis of analysis of their seasonal phenology and made it possible to build a reference sample for modeling and further classification.
The influence of the fractional composition of plant raw materials on the process of bioconversion of basidiomycetes
Authors: Mamaeva Olga , Isaeva Elena , Fedorov Vladimir
Published: February 2024

The paper presents the results of the influence of the fractional composition of plant waste - fallen poplar leaves (Populus balzamifera L.) on the growth and development of basidiomycetes (Fp5-15 Fomitopsis pinicola and PP-3.2 Pleurotus pulmonarius), as well as on the yield of the final product. The use of renewable resources and leaf litter as a substrate in biotechnological processes has broad economic and environmental implications. Cultivation was carried out using solid-phase fermentation for 12 days. The values of bioconversion process factors were obtained using the STATGRAPHICS® Centurion software package. It has been established that the fractional composition of plant raw materials can have a significant impact on the bioconversion process; the most favorable fraction size is 5-6 mm (PP-3.2 P. pulmonarius) and 7-8 mm (Fp5-15 F. pinicola).
Digital technologies in environmental protection and rational use of natural resources
Authors: Nasyrova Liliya A. , Akchurina Liliya R. , Valiakhmetova Julia A.
Published: February 2024

The main directions and trends in the use of digital technologies in environmental practice are considered. The strategy adopted in the Russian Federation in the field of digital transformation of the ecology and environmental management industry is analyzed. Examples of the use of information methods and tools in environmental technologies are given. The used digital software products are grouped depending on the functionality embedded in them: information and legal systems; software products that implement calculation methods for assessing the impact on the natural environment; software designed for data processing and reporting of chemical analytical laboratories for environmental control and electronic cartographic data in the field of environmental protection. Particular attention is paid to the problems, risks and prospects for the development of information technologies in the field of environmental protection and rational use of natural resources.
Decrease of the cost of drying compressed air by heat recovery at the compressor station
Authors: Balzamov Denis , Bronskaya Veronika , Kharitonova Olga , Ignashina Tatiana , Bashkirov Dmitriy , Shaikhetdnova Ramilya , Vyatkina Irina , Garifullina Elvira , Kotova Nina
Published: February 2024

Compressed air is widely used as an energy carrier. The compressed air production systems are a part of the auxiliary systems of offsite facilities. It is worth noting that the production of com-pressed air is quite an energy-intensive process, so the potential for energy saving is quite large. There is increasing the efficiency of the compressed air production by developing technology solutions for air preparation in this work. The system of air drying by cooling and the source of cold are considered in this paper. The paper presents a comparison of cooling systems from steam compression and absorption refrigerating machines from the point of view of heat exchange, energy consumption for their own needs, providing cold with required parameters. The economic effect of the proposed circuit solution is given.
Synthesis and analysis of a new high intensity phthalocyanine pigment containing nitrogen, sulfur and copper
Authors: Robiddinova Mukhlisa , Yusupov Muzafar , Sherkuziev Doniyor
Published: February 2024

The article presents the results of research on obtaining highly intensive pigments based on organic and inorganic substances. The process of synthesis of copper chloride (CuCl) raw material with phthalic anhydride, inorganic and organic substances was studied. As a result of the study, copper chloride (CuCl) and a sample of the pigment obtained as a result of neutralization with sulfuric acid were analyzed using an X-ray spectrum. According to the results of the analysis, a new type of pigment based on copper phthalocyanine (CuPc) was selected as the most optimal option, and physico-chemical analysis of the sample (elemental analysis (SEM_EDX)) was studied. It has been determined that the highly intensive pigment obtained as a result can be used as an import substitute product in the construction and textile industry.
Development of a new type of polymer for modification natural fibers
Authors: Ismailov Rovshan , Khaydarov Islom , Baltabaev Кamil , Yulchiyeva Umida
Published: February 2024

The paper presents data on the use of developed water-soluble compositions in combination with glycerin for modifying natural fibers. The study of the properties and use of polymers as a regulator of textile fibers was laid down in the scientific foundations of this work. The study of the physicochemical properties of water-soluble compositions has substantiated that compositions based on water-soluble polymers meet the requirements for their use in the process of epilamination of natural fibers. The presence of various polyfunctional groups in the structure of a water-soluble polymer allows them to perform the functions of a modifier, forming a thin film on the surface of natural fibers that prevents the removal of moisture, reduces fiber breakage and enhances physical and mechanical properties. This made it possible to establish that epilamination not only preserves the fiber from damage when interacting with the working parts of technological machines, but also improves the processability of the fiber.
Fire retardants giving special properties to fibers and textile materials based on them
Authors: Ismailova Ra’no , Valeeva Nailya , Khaydarov Islom , Ibragimov Baxrom , Sobirova Fotima
Published: February 2024

The fire-retardant properties of modified polyacrylonitrile fibers with phosphorus-containing polymers, as well as nitrogen and brominecontaining flame retardants, have been studied. It has been shown that, in contrast to low molecular weight fire retardants, polymer and oligomer fire retardants give fibers higher fire-retardant properties. The results of determining the flammability of samples showed that the treatment of polyacrylonitrile fibers with oligomeric flame retardants based on the developed flame retardants improves the fire-retardant properties of fibers and materials based on them. As a result of comprehensive research, it was established that for the manufacture of fire-resistant material it is advisable to use the optimal ratio of “polyacrylonitrile fiber - fire retardant”. Carrying out fire-retardant treatment of polyacrylonitrile material with compositions of 3-chloro-1,2-hydroxypropane with 2,4,6-triamino-1,3,5-triazine makes it possible to obtain fabrics with a reduced fire hazard and with the required strength parameters. Also, in the work, based on kinetic and spectroscopic studies and taking into account literature data, a mechanism of oligomeric fire retardant is proposed, which gives fibers and textile materials special fire resistance properties.
Study of the efficiency of using a machine in the automation of agricultural production
Authors: Kokieva Galiya , Skvortsov Vadim , Belenkiy Yury , Akhmetshin Stanislav , Yumagulova Venera , Syromiatnykov Yurii
Published: February 2024

The past period of economic and agrarian reforms has shown that actively applied measures to radically change production relations have not yet yielded positive results, since the mechanism for creating the appropriate productive forces, and especially from the active technical part, has not been developed. The need to improve management methods in the field of equipment operation is dictated by the deepening contradictions of an economic, technical and environmental nature. They can only be resolved through a systematic approach. The article provides an analysis of the development of interrelated complex and differentiated standards for the need for material, labor and other resources for various levels and modes of planning.
Influence of soil fertility on the yield and grain quality of spring wheat in the conditions of Central Siberia
Authors: Kozulina Natalia , Lipshin Alexey , Bobrovsky Alexander , Vasilenko Albina , Kryuchkov Alexander , Gerasimova Natalia
Published: February 2024

The article presents the results of studies on the effect of mineral fertilizers on the yield and quality of spring wheat grain in the conditions of the Krasnoyarsk forest-steppe. The studies were carried out in 2022 at the Minino station of the KrasNIISKh in the soil and climatic conditions of the Krasnoyarsk forest-steppe. The soil of the experimental plot is represented by leached chernozem. The results of the research showed that the maximum yield of the studied grain crops was noted when applying a complex mineral fertilizer (azofoska) at a dose of 60 kg. a.i./ha - 2.85 t/ha (increase to control 0.96 t/ha).
Pneumatic conveying plant for sorting fruits and root crops
Authors: Semenov Konstantin , Carev Evgeny , Rukomoinikov Konstantin , Anisimov Ilya , Anisimov Nikita , Makarov Vadimir , Sidorov Alexander
Published: February 2024

The article deals with the classification of sorting fruits and root crops. When reviewing existing structures, their shortcomings were identified. The authors proposed a new design of the sorting device. The basic principle of operation of this design is based on the creation of a suction air flow inside a metal pipe. The device consists of a container with unsorted fruit, a corrugated plastic pipe of variable length with a tip, a clamp attached to a square metal pipeline. Inside this pipeline there are three rectangular holes of different sizes equipped with gates are fixed. In the lower part of the adapters, cyclones with corrugated plastic pipes of variable length with tips are fixed, descending into the corresponding containers. A protective mesh is installed in the rear part of the metal pipeline and a fan housing is attached, inside which the fan itself is located, driven by an electric motor and creating a suction air flow. The proposed device makes it possible to simplify the design, reduce the consumption of materials, reduce energy consumption, reduce the labor intensity of maintenance, increase productivity, and reduce the degree of damage to the surfaces of sorted fruits and root crops.
Possibility of construction of mobile waste incineration plants for agricultural producers
Authors: Subbotin Artem , Zhuravleva Alexandra , Volkov Gleb , Tereshkov Evgenii
Published: February 2024

Currently, the problem of waste disposal of agricultural products is becoming the most urgent due to the dynamic development of the agroindustrial complex, which is the leader among the manufacturing industries in terms of the amount of waste generated. This article is devoted to the possibility of building mobile waste incineration plants for agricultural producers. The branches of agricultural production were considered, the analysis of waste generated and methods of their disposal was carried out. Based on the study, a model of a mobile waste incineration plant was proposed, as well as the construction of sites for its placement. This installation will provide a faster and more convenient way to dispose of waste in agricultural production.
Reducing reactive energy consumption by optimizing operating modes of irrigation pumping stations
Authors: Abdullabekov Islombek A. , Mirsaidov Murakam M. , Zaripov Odiljon O. , Nimatov Samad J. , Eralieva Yulduz M.
Published: February 2024

The article develops energy and resource efficiency modes of the technological process that meet the requirements of the “frequency converter - asynchronous motor - pump - pressure pipeline” system as a control object. Methods for regulating water pressure and water flow produced by pumping units are considered in order to ensure a schedule for water supply to irrigation pumping stations. The active, reactive and total electrical energies received by an asynchronous motor to change water flow by changing the position of the pressure valve in the pressure pipeline are calculated. In order to optimize water flow and water pressure by changing the speed of rotation of the pump impeller, the frequency converter system of an asynchronous motor with a squirrel-cage rotor was calculated and compared with the method of changing water flow using a push valve, by calculating active, reactive and total electrical energy from the network.
Mode restrictions in the power supply system of industrial induction equipment
Authors: Kinev Evgeny , Tyapin Alexey , Efimov Sergey , Goncharov Konstantin , Kachan Vasilisa
Published: February 2024

The article investigates the frequency features of the power supply of induction heaters designed for aluminum extrusion. Mode regulation is performed by local connection of capacitor banks with the creation of parallel resonance. The scheme of the power supply system is built on the basis of an adjustable frequency converter. To study the induction complex, a mathematical model was created in the frequency and time domains. The calculation showed the possibility of a resonant mode with a deterioration in the frequency regulation of currents with an unsuccessful choice of design. In the course of modeling using a modified nodal analysis, a set of parameters that create a resonance is considered. The frequency characteristics and vector diagrams of the induction device are obtained, which reveal the unfavorable mode. Based on the results of the study, recommendations are proposed for correcting the algorithms for controlling the inverter of the power supply system and overcoming the limitations.
Enhancing environmental sustainability and biodiversity conservation in agrarian-oriented districts of Bryansk Oblast
Authors: Nekrich Alina
Published: February 2024

The paper presents the results obtained from analysis of spatial disproportions arising due to distribution of ecosystems with protective and destabilizing features during agricultural development in Bryansk Oblast. The goal of the research is to reveal a contemporary ratio of such ecosystems at the intra-regional level on the basis of approaches that minimise vulnerability for the environment. Also, to set the tasks for strengthening biodiversity conservation in areas involved in agricultural use. It was determined that environmental sustainability of agroecosystem can be achieved by means of increasing of territories with protective features. Protective ecosystems are viewed as ecological cores of the ecological framework supporting landscape sustainability and preventing loss of biodiversity during agricultural activities. In total, 110 sites or ecological cores have been identified by comparing they spatial distribution in all agrarian-oriented districts of Bryansk Oblast. Since agricultural activity leads to environmental instability and affects biota, ecological cores can enhance environmental sustainability. The significance of this study is to find natural-based solutions that have to be grounded on calculation method applied in this research. A more detailed picture of environmental sustainability is highlighted via location of ecological belts consisting of high-priority sites for biodiversity conservation.