bluuebunny/crossref_metadata_2025 huggingface dataset:
Improving the technology of growing uterine plantations of grapes with load modes in the conditions of the Chechen Republic
Authors: Magomadov Andi , Grigoriev Alexander
Published: November 2023

Reducing the load provides an increase in the yield of marketable cuttings from 8.0 thousand pieces/ha in control to 33.3-71.0 tousand pieces/ha. It has been established that a decrease in the load of the mother bush contributes to a significant improvement in the ratio of the size of conductive tissues to the diameter of the cutting from 70.4% in the control to 71.2-74.3%, which is an important indicator for further propagation of grapes. The regularity of the decrease in the load of mother plants with an increase in the quality indicators of the cutting was revealed, namely the content of NPK from 7.8% to 8.1-8.7%, carbohydrates from 17.6% to 22.45-23.28%, of which starch from 5.0% to 9-9.3%, disaccharides from 6.17% to 6.20-6.45%, monosaccharides from 6.43% to 7.22-7.33%. The increased content of nutrients in the cuttings, with their further use as vegetative seedlings, contributed to an increase in the rates of survival, growth and development of seedlings on the plantation. A significant increase in the yield of seedlings from 40.1% in the control to 46.1-53.9% was noted with a decrease in the load of bushes with shoots.
Selecting the best planter option based on Harrington function
Authors: Tsybulevsky Valery , Tarasenko Boris , Troyanovskaya Irina , Voinash Sergey , Zagidullin Ramil , Sabitov Linar , Kiyamov Ilgam
Published: November 2023

The assessment of modern grain seeders was carried out according to five indicators: price of the seeder, metal consumption and energy intensity of sowing, specific productivity and technical level of the seeder. Weight coefficients were introduced for each indicator. A method for making an objective decision for choosing the best seeder option from alternative options based on the Harrington function is substantiated. The desirability function has been modernized into a graphical form using rating scales. Any intermediate value of the estimated indicator was projected onto a segment of a straight line connecting the points of intersection of the lines of the minimum and maximum values of the estimated indicators and the extreme lines of the same indicators, projected from the Harrington desirability function to a dimensionless scale. Dependences of the indicators of the desirability function for all evaluated indicators are determined. A generalized indicator of a comprehensive assessment is formulated for making a final decision. As a result, it was found that the ALFA-6 seeder has the best performance. Seeders SZT-3.6 and SZP-3 received the worst rating. Their overall score is 42.9% lower than the ALFA-6 planter. The developed assessment methodology made it possible to outline ways for further improvement.
Study of the temperature and humidity regime in solar drying of agricultural products
Authors: Ruzikulov Gulom , Ibragimov Umidjon , Faiziev Tulkun , Mirzayorova Sevara , Ruzikulov Azim
Published: November 2023

This article presents the results of experiments on the temperature and humidity regimes in the drying chamber when drying apples and apricots in a refrigerator with a combined solar collector and heat pump. The combined dryer is designed for simultaneous drying and long-term storage of the product. Experiments on the study of temperature and humidity regimes were carried out under natural convection conditions. Experimental studies of temperature and humidity regimes showed that the maximum temperature inside the chamber reached 46 oC and the maximum humidity reached 62%, and in these temperature and humidity regimes, apples were dried in 30 hours and apricots in 48 hours. From a product with a starting mass of 5 kg, 0.65-0.7 kg of dried product was obtained. Experimental results on temperature and humidity during drying of apples and apricots t=f(h) and w=f(h) and presented in the form of a dependency graph.
A model for assessment of agricultural products provision at the level of regional food systems
Authors: Antamoshkina Elena , Snapkouskaya Svetlana , Radionova Elena , Smotrova Elena , Sahakyan Maria
Published: November 2023

The article presents an overview of scientific publications on the provision of agricultural products, highlights the factors affecting the provision of food to the population. Emphasis is placed on studies devoted to the analysis of household resilience to food insecurity. A model for assessing the availability of agricultural products at the level of regional food systems is proposed. Based on the developed indicators, an assessment was made of the availability of agricultural products in the regions of the Southern Federal District (SFD) in 2020. The regions were ranked according to the level of provision with agricultural products. The leading regions of the SFD and the regions with the lowest level of provision of agricultural products were identified. The practical significance of the proposed assessment model lies in the use of the data obtained in determining the directions for the implementation of agri-food policy and the formation of measures to support the regions.
Review of methods for improving the thermal performance of solar air collectors with flat plates
Authors: Ibragimov U.Kh. , Khamraev S.I. , Shomuratova S.M. , Botirov A.S. , Sattorov A.B.
Published: November 2023

The latest research on improving the thermal efficiency of flat solar air collectors is carried out on the modification of the absorber surface, the organization of multiple air flow, the use of porous absorbers, the transfer of air flow to the absorber surface by impact, the integration of the absorber surface with heat accumulating materials. The formation of a laminar viscous layer on the surface of the absorber leads to the deterioration of heat transfer to the air stream. The main factor for increasing the heat transfer in flat solar air collectors is to increase the heat transfer surface and the air residence time in the collector, which is achieved by using fins, barriers, turbulizers and baffles. When installing turbulizers of different shapes on the surface of the absorber, the thermal efficiency of the collector increases from 71.4% to 93%. When the absorber surface is integrated with heat-accumulating materials and ribs, the daily thermal efficiency of the collector increases to an average of 0.4-4%. This review article presents an analysis of the scientific research conducted in the last decade on improving the thermal efficiency of flat solar air collectors.
Overview of the spread of soybean pests in the Russian Federation
Authors: Belova Tatiana , Telichko Ol’ga , Syrmolot Oksana , Lastushkina Elena
Published: November 2023

Soy is the most demanded and widespread leguminous culture in the world. She received this status due to the rich chemical composition of seeds and its wide use for food, technical and fodder purposes. The sown area under this crop is increasing every year. Soy is an attractive object for many insects. In its agrocenosis there are both useful and harmful species. The object of our research was soybean pests. The article analyzes publications in order to clarify the species composition and distribution of soybean pests in the last century to the present. The paper presents data on the distribution of soy phytophages in the main regions of soybean cultivation in Russia. Among the pests of soybeans in the Russian Federation there are both specialized and multi -stage species: leaf - shocking insects - Lepidoptera (scaly), Coleoptera (hard -winged), Hemiptera (semi -burned -winged), Homoptera (equivalent), Acariformes (ticks), Thysanoptera - thrips (Thrips sp.), insects damaging seeds - diptera (double -winged). The most common phytophages causing significant harm to soybeans in Russia are: Leguminivora glycinivorella Mats., Paraluperodes suturalis nigrobilineatus Motsch., Aphis glycines Mats., Loxostege sticticalis L., Etiella zinckenella Tr., Orthosia ella Butl, Pyrrhia umbra Hufn, Heliothis maritime Grasl. and Tetranychus urticae C.L.Kocn. According to the results of phytosanitary monitoring in 2022 in Primorsky Krai, the most common soybean pests were: soybean striped leaf beetle, polyphagous soybean leaf beetle, soybean moth and various types of bugs.
Expert systems for diagnostics of infectious diseases in cattle
Authors: Muhamediyeva D.T. , Safarova L.U. , Ruzikulov R.F.
Published: November 2023

Expert systems designed to identify diseases in cattle may use a variety of sources of information such as clinical data, signs of disease, medical history, laboratory results, environmental exposure and other relevant factors. They can be developed based on rules, heuristics, or machine learning, using a large amount of data to train the model. The expert system may provide the veterinarian with a list of possible diagnoses, ranked by probability, based on the data provided. She may also recommend further investigations or tests for a more accurate diagnosis. The developed expert system for veterinary medicine provides a wide range of functions and capabilities to support the work of veterinarians and processing data on the incidence of cattle.
The impact of organic preparations on the growth, development and efficiency indicators of some newly produced spiked cereals (barley, emmer, triticale)
Authors: Martirosyan H.
Published: November 2023

The role of the use of preparations of organic origin in the field of horticulture is great in obtaining high and quality yield from agricultural crops, with the absence of nitrate nitrogen. It is especially important for such crops, the products of which are a source of daily human food, which in particular refers to cereals. In that sense, the effectiveness of the cultivation of several newly obtained spiked cereals (barley, emmer, triticale) under the conditions of green agriculture was studied, excluding the use of mineral fertilizers and pesticides. For this purpose, the Complex- Co preparation was used as a seed disinfectant and growth promoter at the same time, and in the later stages of growth and development, Triamine 10.2%, Bactophyte and Quisellium preparations of organic origin were used, which ensured high efficiency and the amount of residual nitrogen was reduced to a minimum.
The effect of seed fractions and nutrition on the physiological changes and productivity of spring barley grown in the south of Uzbekistan
Authors: Musaev M. , Ishmukhamedova R. , Irnazarov Sh. , Djabbarova D. , Saidmurodov Kh.
Published: November 2023

The influence of physiological changes on the grain yield of spring barley sown in optimal fractions and fed with mineral fertilizers in optimal norms in irrigated light gray-meadow soils with unfavorable conditions (subject to wind erosion) of the steppe zones of the Kashkadarya region was studied.
Modeling the heat balance of a solar concentrator heliopyrolysis device reactor
Authors: Uzakov G.N. , Almardanov X.A. , Kodirov I.N. , Aliyarova L.A.
Published: November 2023

The article presents the principle scheme of the heliopyrolysis device with a solar concentrator and the mathematical model of the equations representing the heat balance of the heliopyrolysis reactor. Based on the mathematical modeling method, the energy balance of the heliopyrolysis reactor was theoretically studied, and graphs representing the temperature change of the reactor surface were obtained when the solar radiation falling on the concentrator was Ir=600÷900 W/m2 in the climatic conditions of the region of Karshi (Uzbekistan). Based on modeling in the SOLTRACE program, the graphs of the temperature field at different points of the solar parabolic concentrator are determined to change depending on the energy of the incident solar radiation. In the experimental device, it was determined that an average temperature of 200-300 ℃ can be generated in the reactor within one hour. Experiments show that in the conditions of the city of Karshi, it is possible to create a regime of 200÷500℃ sufficient for biomass pyrolysis through a parabolic solar concentrator in the daytime mode.
Antifungal potential of biosurfactants produced by strains of Bacillus mojavensis PS17 against pathogens of the genera Fusarium and Verticillium
Authors: Ezhkin Nikita , Osmorskaya Zlata , Gordeev Alexander , Biktasheva Liliya , Kuryntseva Polina
Published: November 2023

Phytopathogenic fungi cause significant damage to agriculture, reducing or destroying the crop. There are several ways to control fungal diseases, such as the use of disease-resistant plant varieties, organic farming, and the use of fungicides. One of the methods of combating phytopathogens is the use of biological products, one of which is biosurfactants. Biosurfactants are surfactants produced in the course of life. They are able to reduce fungal growth and increase plant disease resistance, improve plant growth and yield, and act as adjuvants to improve wetting and solubility of fertilizers. In the course of this work, the fungicidal activity of biosurfactants formed by Bacillus mojavensis PS17 was assessed against pathogens of the genera Fusarium and Verticillium. It has been established that the biosurfactant is able to reduce the coverage area of Fusarium and Verticillium fungi in in vitro experiments by 39 and 43%. Thus, it can be concluded that the biosurfactant produced by Bacillus mojavensis PS17 has antifungal activity.
Screening of microorganisms producing biosurfactants from renewable substrates
Authors: Biktasheva Liliya , Gordeev Alexander , Kirichenko Anastasia , Danilova Natalia , Selivanovskaya Svetlana
Published: November 2023

Biosurfactants are one of the promising biotechnological products applied in agriculture. Their use, however, is currently far from economically viable, due to the expensive feedstock for the growth of microorganisms. The solution to this problem can be to reduce the cost of production by using organic waste as a nutrient substrate. In this study, oil-containing wastes were considered as substrates - waste frying sunflower oil and petroleum-contaminated soil. At the first stage of research, we screened native waste microorganisms capable of synthesizing biosurfactants. As a result of the study, strains with the ability to form biosurfactants were isolated. Six strains (A, B, C, D, E, F) were isolated from waste frying sunflower oil, two strains (A1, B1) were isolated from petroleum-contaminated soil. The highest yield of biosurfactants is typical for strains A and A1 - 0.429 and 0.502 mg ml-1, while the best ratio of biosurfactant mass to cell biomass is typical for strains A1 and E - 0.9 and 0.6. The most effective producer of biosurfactants turned out to be strain E with an emulsifying activity of E24 equal to 80% and a surface tension of the culture liquid of 27.1 mN m-1.
Effect of Silybum marianum (L.) Gaertn. seeds hydrostatic pressure pretreatment on biological properties of the extract by Drosophila melanogaster example
Authors: Antosyuk Olga , Verbitskaya Anastasiya , Sharova Elena , Kruglikov Nikolai , Khomyak Dmitriy
Published: November 2023

The article analyzes the feeding intensity, chemotaxis of larvae and changes in the expression of the sqh gene in D. melanogaster individuals cultivated on a nutrient medium with the introduction of ethanol extract from S. marianum seeds under pretreatment with hydrostatic pressure of 5, 10, 15 and 20 MPa. The preferred chemotaxis of larvae with respect to seed extract without prior pressure exposure was revealed. Changes in the intensity of nutrition in individuals of the experimental groups were not registered. A hypo-expressive direction of changes in the activity of the sqh gene was found when growing individuals on a medium with the introduction of an extract from seeds treated with pressure levels of 15 and 20 MPa. Variants of further experiments are proposed.
The effectiveness of biologization in the cultivation of crops
Authors: Petukhov Dmitry , Sviridova Svetlana , Yurina Tatiana , Belik Maria , Mishurov Nikolay , Ermakov Alexander
Published: November 2023

The article presents data from field studies of the use of biological products and fertilizers with microelements in the cultivation of four crops: winter wheat, sunflower, grain corn, soybeans. Schemes for the introduction of drugs, indicators of the comparative economic efficiency of their use are presented. The results of the conducted studies have proved the effectiveness of the use of biological products and fertilizers with trace elements. For all crops, there was an increase in yields: winter wheat - by 1.2%, sunflower - by 7.5%, corn for grain - by 7.8%, soybeans - by 13.6%. The increase in profit from each hectare of crops was: for winter wheat - by 8.7%, sunflower - by 9.2%, corn for grain - by 6.9%, soybeans - by 17.9%.
Modeling and optimization of the parameters of the heat accumulator of the combined livestock-heliogreenhouse complex
Authors: Ergashev Shakhriyor , Faiziev Tulkun , Yakhshiboev Shukhrat , Fayzullaev Ikhtiyor
Published: November 2023

In the article, the heat exchange process in the water tank battery, which acts as a wall between the livestock building and the solar greenhouse, is studied. The division consists of parallelepiped-shaped tanks, between which the coefficients of heat transfer in charge and discharge mode are determined, taking into account the different temperatures and speeds of the air in the livestock building through the air-moving corridors. A mathematical model of the temperature regime was developed based on the balance equation of the water tank accumulator. The geometric dimensions of the water tank accumulators are optimized based on the criterion equations. A computer model was created using the COMSOL Multiphysics software tool and thermal efficiencies were determined. Based on the results of the conducted research and numerical calculations, it is based on the high heat exchange and energy efficiency when the size of the water tank accumulator is 40x60x25 cm.
Natural resource potential in the development strategy of the region
Authors: Dvoryadkina Elena , Ermakova Anna , Kustysheva Irina , Kryakhtunov Alexander
Published: November 2023

The article considers the natural resource potential of the Tyumen region. The main peat deposits were identified, their useful properties and the possibility of further application in various sectors of the economy were determined. Prospects and mechanisms of peat processing will have a positive impact on the balanced development of the territory.
Assessment of ecological plasticity and stability of promising potato hybrids of the Komi Republic (Russia)
Authors: Tulinov Aleksei
Published: November 2023

In the Republic of Komi (Russia), one of the main agricultural vegetable crops cultivated by agro-enterprises, peasant farms and the population in the private sector is potatoes. The food security of Russia in the Arctic zone and obtaining competitive varieties for the regions of the Far North of our country is the main task solved by agricultural science in the field of breeding. New, promising varieties of potatoes must meet modern requirements for high yields obtained in various natural, soil and climatic conditions of their cultivation. In addition, varieties should have high stability in terms of commercial and economic characteristics and give an equivalent yield in constantly changing environmental conditions, both for the better (favorable) and for the worse (unfavorable). The use of modern methods of mathematical, statistical analysis, calculation of the assessment of environmental stability, plasticity, adaptability, as well as an objective and complete assessment of the potential of potato genomes, rigorous selection of promising lines and hybrids and screening for various negative traits, especially at the first stages of breeding, variety samples that do not correspond and do not satisfy these parameters, allow you to quickly obtain new varieties adapted to the Arctic zone of the Russian Federation. In order to strengthen breeding work aimed at breeding promising varieties of potatoes, in 2020-2022, a research program was carried out in breeding nurseries of the dynamic competitive first, second and third years of testing (hybrids of the sixth, seventh and eighth tuber generation) on the basis of the Institute of Agricultural Biotechnology of the Federal Research Center Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences (Russia, Syktyvkar). New promising potato hybrids (varieties) were selected as the object of study: 2341-265 (Amur x Gala), 2339-8 (Oksania x Gala), 2339-9 (Oksania x Gala), 1992-14 (Udacha x Elmundo), 2000-60 (Colette x FZ 1867); the standards were zoned and recommended for this region varieties of two groups of ripeness: Udacha - early, early ripening, Nevsky - medium early. As a result of research work in the course of a comprehensive assessment of ecological plasticity and stability, a promising potato hybrid 2000-60 was identified. This hybrid is characterized by stability to growing conditions,responsiveness to improved cultivation conditions, high average yield (33.7 t/ha).
Study of the combined solar heating system of residential houses
Authors: Khamraev S.I.
Published: November 2023

The use of renewable energy sources in the heat supply systems of residential houses is one of the urgent issues today. Since solar energy has the highest potential among renewable energy sources, it is widely used in residential heat supply systems. Although solar energy is used in heating systems until now, due to the large number of factors affecting the heating system, research in this field is accelerating. In this research work, a combined scheme for using solar energy in the heating system of residential houses is proposed and the results of pilot studies conducted in the season from November 2020 to February 2021 in the heating system implemented according to this scheme are presented. According to the results of the research, it is possible to cover up to 70% of the heat load in the heating system of residential houses. The information presented in the research work can be used in the design and implementation of energy-efficient solar heating systems.
Ways to reduce friction and wear of fuel elements in nuclear power
Authors: Kanareykin Aleksandr Ivanovich
Published: November 2023

Friction forces affect the strength of the fuel assembly at all stages of its life cycle. The work is devoted to the issues of reducing friction and wear of fuel elements of a nuclear reactor. It presents methods and results of pre-reactor experimental studies of static and dynamic processes involving friction forces. Because of the conducted research, it was found that the transformation of the movable joints of the guide channels and spacing gratings into fixed ones by means of spot welding in “rigid” fuel assemblies, together with other measures, solved the problem of curvature of the fuel assemblies. It is also shown that during the assembly of fuel assemblies, the friction force can be reduced using ultrasound.
Application of modern energy-saving technologies and improved energy efficiency
Authors: Turkova V.N. , Konstantinov G.G. , Arkhipova A.N. , Kuznetsova N.V. , Ardashev R.G.
Published: November 2023

The article defines the relevance and problems of modern society on the use of energy resources, which are to solve the problems of preventing the energy crisis by saving resources through the development and implementation of modern energy-saving technologies and energy efficiency. The authors give key ways of saving energy resources in the form of principles: replacing traditional energy carriers with alternative energy sources, the use of secondary energy resources (wind, solar, water and other energy), the introduction of energy-efficient technological processes, rationalization and assessment of the feasibility of using modern energy-saving technologies. The article also analyzes in more detail the principles of increasing energy efficiency and proposes energy-saving measures for energy-intensive industries.
Chemical and mineralogical studies of basalt “Aydarkul”
Authors: Kurbonov A. , Sattorov L. , Kamolov B. , Rakhimov O.
Published: November 2023

In the article, the geologic, structural, and mineralogical composition of the “Aydarkul” basalt mine was studied as a result of research, and a complete analysis of the physical and chemical pieces of the basalt rock was given. Based on the results of theoretical and experimental studies, the physical and chemical foundations of pyro- and hydrometallurgical methods of rock processing - basalt raw materials - have been developed. Technological options are proposed that allow obtaining demanded products of various compositions. A schematic diagram of the complex processing of basalt raw materials has been developed, including the processing of waste and by-products, as well as the extraction of accessory materials. The study found that the basalts of the Aydarkul mine can be used in the electric power industry.
Enhanced NH3 Adsorption Capacity of CuCl2 by Changing the pore structure
Authors: Shen Cheng , Shen LaiHong
Published: November 2023

Ammonia is an important carrier of hydrogen energy, with the characteristics of high hydrogen content density and no carbon dioxide emission. In recent years, many methods of ammonia synthesis using biomass have been widely studied to improve ammonia yield. Therefore, safe and efficient ammonia capture for ammonia synthesis from biomass is an important way to alleviate the energy crisis and solve the energy problem. In this paper, the NH3 adsorption properties of CuCl2 were measured, and the composite adsorbents were prepared by using silicon and multi-walled carbon nanotubes respectively to support CuCl2, and the NH3 adsorption properties of the composite adsorbents were studied. The study found that the NH3 adsorption capacity of the three adsorbents decreased with the increase in temperature, so metal chlorides were more suitable for the low-temperature adsorption of ammonia. Silicon and multi-walled carbon nanotubes have an enhanced effect on the NH3 adsorption of CuCl2. The reason is that the porous material itself has a physical adsorption effect on ammonia, and silicon can play the role of skeleton support in cupric chloride particles, which enhances the pore structure of the adsorbent, thereby alleviating sintering.
Research on Investment Economic Evaluation of Flexible Regulating Resources such as Energy Storage in High Proportion New Energy Environment
Authors: Shi Yu , Gao Xuefeng , Zhao Bo , Yao Yiwen , Shao Shuai , Yang Xueying , Zhang Xiaotong
Published: November 2023

With a high percentage of new energy scenarios, it has become a trend for flexible resources such as energy storage systems to participate in long-term planning. In this context, it is important to explore how energy storage systems are configured. Therefore, it is necessary to analyse the economics of energy storage and other resources to ensure that investments in energy storage and other resources are economically valuable under different future models. This paper firstly analyses the current situation of a high percentage of new energy in China, and secondly constructs a model for analysing the economics of flexible regulation resources such as energy storage. Under partial data based on the scenery storage project, the economic analysis under four models is derived, including cost and benefit analysis, investment benefit analysis, and break-even point analysis. Finally, the economic evaluation of investment in energy storage projects under different models is summarized based on the calculation results.It is concluded that different scenario models have different economic benefits, and the operation capacity of the four scenarios is higher than that of the existing models.
Analysis of 750 kV Conductors in 750 kV Substations
Authors: Zhang Xiaowen , Wang Yu , Jia Yunhui , Jiang Qinyi
Published: November 2023

Two-bundled conductors are generally used in the design of 750 kV substations. Compared to two-bundled conductors, multi-bundled conductors have higher load capacity and greater start-up voltage. This paper investigates the possibility of using multi-bundled conductors instead of two-bundled conductors in 750 kV substations from both technical and economic aspects.
Mechanistic Analysis of the Impact of Multidimensional Relationship Networks on Farmers' Behavior of Carbon Emission Reduction
Authors: Luo Xiaojuan , Ye Qingqing
Published: November 2023

Agricultural carbon emission reduction is indispensable to the achievement of the "double carbon" goal, and the multidimensional relationship network has become the key to the decision-making of farmers' carbon emission reduction behaviour. Based on the perspective of heterogeneous relationship subjects, this paper divides the relationship network into three dimensions: market relationship, government relationship, and social relationship network, and explores the theoretical analysis of the influence of multidimensional relationship network on the decision-making of carbon emission reduction behaviours of farmers, and analyses the mechanism of relationship network influencing the carbon emission reduction behaviours of farmers from the three aspects of information flow, demonstration effect, and factor guarantee based on the social capital theory to lay a solid theoretical foundation for the later empirical analyses. It lays a solid theoretical foundation for the later empirical analysis.
Comprehensive Assessment and Intervention: Analyzing and Mitigating Light Pollution Level in Different Regions Using the Entropy Weight Method, TOPSIS, and Fuzzy Comprehensive Evaluation Method
Authors: Lu Xiaofan , Yin Huanle , Shao Lingjun
Published: November 2023

Light pollution is wreaking havoc on a global scale, which affects the environment, the rhythms of living things, and even our health and safety. In order to calculate the light pollution level in different regions, the entropy weight method was used to calculate the weight of light pollution evaluation indicators of eight cities of four types. Then, the light pollution risk level of eight cities was calculated using TOPSIS(the Technique for Order Preference by Similarity to an Ideal Solution), which was defined as LPRI. Finally, the degree and order of light pollution in four types of regions are obtained. According to each evaluation indicator of light pollution, we put forward corresponding measures to reduce light pollution, and obtained the most effective measures for each region by fuzzy comprehensive evaluation method. The entropy weight method and TOPSIS can make full use of the original information of each indicator data in eight cities to obtain an objective and ac-curate light pollution risk level. When it is impossible to obtain the specific data of the impact of different measures on the LPRI index values of each region, the fuzzy comprehensive evaluation method using fuzzy mathematical concepts is used to objectively obtain the most effective intervention measures for different regions.
Mechanism and Method of Auxiliary Decision-Making for Dispatching Real-time Operation in Electric Spot Market
Authors: Shi Jianguo , Du Zhijie , Guo Qi , Hao Qianpeng , Meng Fancheng , Li Qiang , Yao Shun , Li Wenze , Li Rongli
Published: November 2023

Starting from the market rules of the pilot provinces of the domestic spot market, this paper analyzes the mechanism of market intervention and suspension, the mechanism of the power supply period, and the mechanism of market clearing anomaly. At the same time, combined with the real-time operation of the Inner Mongolia power grid, the traditional dispatching mode and the power spot market operation dispatching mode are compared. Given the abnormal frequency, section overload, and insufficient spinning reserve in real-time operation, an auxiliary decision mechanism of manual intervention in the power spot market is proposed. The mechanism includes load bias setting, section limit bias setting, deviation monitoring, and other auxiliary functions, which provide a method of quick intervention under the electric spot market to ensure the safe and stable operation of the power grid.
Dual-carbon development opportunities and challenges in the property industry: A key role in China’s low-carbon transition
Authors: Du Haiyang , Su Litao , Yang Zilin , Zhang Dongkui , Wang Dan , Geng Liping , Yu Fang , Hou Peng , Wang Xiaojuan
Published: November 2023

This paper aims to explore the key role of the property industry in China’s low-carbon transition, and analyze the opportunities and challenges of its dual-carbon development. Firstly, the urgency of global greenhouse gas emissions and the importance of property industry in carbon emissions are introduced, then the definition and significance of carbon neutral and dual carbon goals are analyzed, and the international and domestic dual carbon policies and commitments are reviewed. Then it lists the main sources and components of carbon emissions of the property industry in detail, and evaluates the carbon footprint of the property industry. Next, it discusses the opportunities of new technology and innovation, renewable energy, carbon finance and carbon market for the dual-carbon development of the property industry. At the same time, it also discusses the challenges of technical constraints and cost pressures, the uncertainty and landing problems of policies and regulations, and the difficulty and constraints of landlord and tenant participation. Finally, the paper puts forward policy suggestions to promote the dual-carbon development of the property industry, including setting clear carbon reduction targets and schedules, providing policy support and financial incentives, and establishing industry cooperation and sharing mechanism.
Interval-valued picture fuzzy aggregation information based on Frank operators and their application in group decision making
Authors: Abolfathi Mohammad Ali , Ebadian Ali
Published: November 2023

The information aggregation operator plays a key rule in the multiple attribute group decision making problems. The aim of this paper is to investigate the information aggregation operators method under the interval-valued picture fuzzy environment with the help of Frank norms operations. The picture fuzzy set is an extended version of the intuitionistic fuzzy set, which not only considers the degree of acceptance or rejection but also takes into the account of neutral degree during the analysis. Under these environments, some basic aggregation operators namely interval-valued picture fuzzy Frank weighted averaging operator, interval-valued picture fuzzy Frank ordered weighted averaging operator, interval-valued picture fuzzy Frank hybrid averaging operator, interval-valued picture fuzzy Frank weighted geometric operator, interval-valued picture fuzzy Frank ordered weighted geometric operator, and interval-valued picture fuzzy Frank hybrid geometric operator are proposed in this paper. Some general properties of these operators such as idempotency, commutativity, monotonicity, and boundedness, are discussed. Furthermore, the method for multiple attribute group decision making problems based on these operators is developed and the operational processes are illustrated in detail. Finally, an illustrative example has been given to show the decision steps of the proposed method and to demonstrate their effectiveness.
Association between Functional Movement Screening™ scores and non-contact injuries in amateur rugby players
Authors: Tondelli Eduardo , Bittencourt Natalia , Villalba Federico , Zabaloy Santiago
Published: November 2023

Objective: To examine the associations between the Functional Movement Screening (FMS™) scores and asymmetries between limbs in the different tasks with non-contact injuries in senior amateur rugby union players.

Method The design was a prospective cohort study. Sixty-eight (n = 68) male senior amateur rugby players completed the FMS™, which assesses seven functional movements on a scale of 0 to 3 and provides a total score of up to 21. Players were subsequently monitored for injuries during one competitive season. Likewise, match and training non-contact injuries with the associated variables were collected.

Results: Twenty-two (32.3%) players sustained one non-contact injury during the season. The median time lost was 24.5 days (IQR [15; 383]). Injured players showed a mean FMS™ composite of 14.50(SD 1.74), and non-injured showed a mean FMS™ composite of 14.57(SD 2.25). No statistically significant association was found between the presence of non-contact injuries and FMS™ composite score (OR = 0.98 [0.77; 1.27]) or FMS™ categorical score (≤ 14) (OR = 0.64 [0.23; 1.78]). The presence of an asymmetry between limbs in the active straight leg raise was associated with non-contact injuries (OR: 4.69 [1.35 - 17.9]) (p = 0.02).

Conclusion: FMS™ composite did not show differences between injured and non-injured players. Asymmetry in the active straight leg raise was strongly associated with non-contact injury occurrence.
Value of Edema-like Marrow Signal Intensity in Diagnosis of Joint Pain: Radiologists' Perspective
Authors: Kim Dong Kyun , Lee Sheen-Woo
Published: November 2023

Musculoskeletal pain is a significant contributor to disability. The mechanism and target of the treatment should be optimized by imaging, but currently no accepted gold standard exists to image pain. In addition to end-organ pathology, other mediators also contribute to nociception, such as angiogenesis, axonal extension, immunologic modulation, and central sensitization. Recent research indicates that local inflammation is a significant contributor to pain in the extremities; therefore, we focus here on edema-like marrow signal intensity (ELMSI). We examine both the relevance of ELMSI for pain and novel imaging techniques.
Salivary Trefoil Factor (TFF3) in Stage I–II Periodontitis: A Prospective Clinical Study
Authors: Palwankar Pooja , Verma Ritika , Pandey Ruchi , Goyal Anjana
Published: November 2023

Objective This article evaluates the salivary trefoil factor levels using enzyme-linked immunosorbent assay and clinical parameters in stage I to II periodontitis subjects.

Materials and Method A total of 44 subjects with periodontitis and healthy periodontium were enrolled for the study as per the inclusion criteria. The subjects were selected and categorized as group A (control group) and group B (test group). Scaling was performed on healthy subjects at baseline and 1 month if necessary and scaling and root planing was performed for periodontitis subjects. Trefoil factor 3 (TFF3) levels was analyzed at first and post-nonsurgical periodontal therapy followed by clinical parameters, respectively.

Statistical Analysis Inferential statistics were performed using independent t-test and repeated measures of analysis of variance (ANOVA) test. Independent t-test was used for the intergroup comparison of all the variables. Repeated measures of ANOVA test along with post hoc Bonferroni test was used for the intragroup comparison and the level of statistical significance was set at 0.001.

Results Difference in TFF3 levels and clinical parameters was seen between groups A and B, which was statistically significant.

Conclusion Within the constraints of the study, it can be stated that TFF3 is a relevant biomarker to determine the activity and association of periodontal and systemic diseases, gastrointestinal disorders, and inflammatory bowel diseases.
Transient price setting in the era of automated systems: the ‘hands-on’ hotel general manager lives on!
Authors: Haynes Natalie , Egan David
Published: November 2023

Hotel pricing discussions seem to be increasingly dominated by automated revenue management and pricing systems without considering human interaction. Using grounded theory, this paper foregrounds the voice of twenty managers and exposes the complexities and realities of their involvement in price decision-making. A hybrid price decision-making process was discovered where the hotel general manager remains in control despite automation, due to their modus operandi to control the performance of their hotel by using their local market and customer knowledge in the pricing process. This indicates that for revenue management at hotel unit level there is an often-unseen gap between theory and practice.
Identification and characterization of deep nitrogen acceptors in β-Ga2O3 using defect spectroscopies
Authors: Ghadi Hemant , McGlone Joe F. , Cornuelle Evan , Senckowski Alexander , Sharma Shivam , Wong Man Hoi , Singisetti Uttam , Frodason Ymir Kalmann , Peelaers Hartwin , Lyons John L. , Varley Joel B. , Van de Walle Chris G. , Arehart Aaron , Ringel Steven A.
Published: November 2023

The ability to achieve highly resistive beta-phase gallium oxide (β-Ga2O3) layers and substrates is critical for β-Ga2O3 high voltage and RF devices. To date, the most common approach involves doping with iron (Fe), which generates a moderately deep acceptor-like defect state located at EC-0.8 eV in the β-Ga2O3 bandgap. Recently, there has been growing interest in alternative acceptors, such as magnesium (Mg) and nitrogen (N), due to their predicted deeper energy levels, which could avoid inadvertent charge modulation during device operation. In this work, a systematic study that makes direct correlations between the introduction of N using ion implantation and the observation of a newly observed deep level at EC-2.9 eV detected by deep-level optical spectroscopy (DLOS) is presented. The concentration of this state displayed a monotonic dependence with N concentration over a range of implant conditions, as confirmed by secondary ion mass spectrometry (SIMS). With a near 1:1 match in absolute N and EC-2.9 eV trap concentrations from SIMS and DLOS, respectively, which also matched the measured removal of free electrons from capacitance-voltage studies, this indicates that N contributes a very efficiently incorporated compensating defect. Density functional theory calculations confirm the assignment of this state to be an N (0/−1) acceptor with a configuration of N occupying the oxygen site III [NO(III)]. The near ideal efficiency for this state to compensate free electrons and its location toward the midgap region of the β-Ga2O3 bandgap demonstrates the potential of N doping as a promising approach for producing semi-insulating β-Ga2O3.
Short-range screened density matrix functional for proper descriptions of thermochemistry, thermochemical kinetics, nonbonded interactions, and singlet diradicals
Authors: Ai Wenna , Su Neil Qiang , Fang Wei-Hai
Published: November 2023

Common one-electron reduced density matrix (1-RDM) functionals that depend on Coulomb and exchange-only integrals tend to underestimate dynamic correlation, preventing reduced density matrix functional theory (RDMFT) from achieving comparable accuracy to density functional theory in main-group thermochemistry and thermochemical kinetics. The recently developed ωP22 functional introduces a semi-local density functional to screen the erroneous short-range portion of 1-RDM functionals without double-counting correlation, potentially providing a better treatment of dynamic correlation around equilibrium geometries. Herein, we systematically evaluate the performance of this functional model, which consists of two parameters, on main-group thermochemistry, thermochemical kinetics, nonbonded interactions, and more. Tests on atomization energies, vibrational frequencies, and reaction barriers reveal that the ωP22 functional model can reliably predict properties at equilibrium and slightly away from equilibrium geometries. In particular, it outperforms commonly used density functionals in the prediction of reaction barriers, nonbonded interactions, and singlet diradicals, thus enhancing the predictive power of RDMFT for routine calculations of thermochemistry and thermochemical kinetics around equilibrium geometries. Further development is needed in the future to refine short- and long-range approximations in the functional model in order to achieve an excellent description of properties both near and far from equilibrium geometries.
Haddon’s POAV2 vs POAV theory for non-planar molecules
Authors: Sabalot-Cuzzubbo J. , Cresson N. , Salvato Vallverdu G. , Bégué D. , Cresson J.
Published: November 2023

In this note, we give a self-contained presentation of the POAV2 theory developed by Haddon to study the alignment of π-orbitals along a non-planar molecule. The classical POAV theory is purely geometric instead of the POAV2 which includes more physics in the computations. We compare the results obtained from the POAV2 and POAV theory. We prove that the difference between the two quantities is in most of the cases negligible. As a consequence, the POAV theory is sufficient for most of the purposes concerning the description of the local π-system of a molecule.
Thermodynamic-driven selective synthesis and phase transformation of Sr-doped neodymium nickelate Ruddlesden–Popper epitaxial films
Authors: Gao Xiaofei , Liu Junhua , Ji Yaoyao , Wei Long , Xiao Wen , Hu Shilin , Li Lin , Gan Yulin , Chen Kai , Liao Zhaoliang
Published: November 2023

Recent discovery of the signature of 80 K superconductivity in La3Ni2O7 single crystals under high pressure sheds the light on the realization of high temperature superconductors from Ruddlesden–Popper nickelates. Here, we demonstrated the realization of selective fabrication of Nd0.8Sr0.2NiO3 perovskite films and (Nd0.8Sr0.2)2NiO4 Ruddlesden–Popper films from one ceramic Nd0.8Sr0.2NiO3 target simply by controlling the growth temperature. Our results further show that the as-grown Nd0.8Sr0.2NiO3 films can be transformed to (Nd0.8Sr0.2)2NiO4 by annealing in air at 1000 °C. Nd0.8Sr0.2NiO3 and (Nd0.8Sr0.2)2NiO4 films were found to be metallic and insulating, respectively. X-ray photoelectron spectroscopy results reveal that the as-grown (Nd0.8Sr0.2)2NiO4 films contained NiO impurity, which can be removed by high temperature annealing. X-ray absorption spectroscopy measurements indicate a lower Ni valence state and weakened hybridization between Ni–O in (Nd0.8Sr0.2)2NiO4 films. Substrate lattice strain strongly affects the stability of Nd0.8Sr0.2NiO3 and the formation of (Nd0.8Sr0.2)2NiO4. These results suggest an important role of thermodynamic principles in the growth and post-annealing of nickelate films. These findings provide an approach to obtain Ruddlesden–Popper series nickelate films and offer certain impetuses to the development of nickelate superconductivity.
Quantized fault-tolerant pinning control for finite-time H∞ synchronization of T-S fuzzy discrete Markovian-jump complex networks subject to heterogeneous delays
Authors: Wu Xiru , Wu Rili , Zhang Yuchong , Wang Yaonan , Huang Lihong
Published: November 2023

This paper investigates the finite-time

ℋ
∞

pinning synchronization problem for a class of T-S fuzzy discrete Markovian-jump complex networks (TSFDMCNs) influenced by heterogeneous delays. The evolution of system parameters follows the Markov jump process according to a transition probability matrix with partly unknown elements. Based on the system state output, quantized fault-tolerant pinning controller (QFTPC) is designed to overcome communication limitations and varying actuator fault. Besides, the asynchronous signal generated by the hidden Markov model is employed in controller to make full use of received information. A novel mode-dependent Lyapunov- Krasovskii functional (LKF) is established to guarantee the error system mean-square finite-time bounded with the prescribed

ℋ
∞

performance. In order to reduce conservatism of derived results, an improved Wirtinger-based inequality technique is applied in considering both lower and upper bounds of different delay. Finally, simulation examples illustrate the effectiveness and meliority of the proposed theoretical methods.