bluuebunny/crossref_metadata_2025 huggingface dataset:
Designing dual-atom cobalt catalysts anchored on amino-functionalized MOFs for efficient CO2photoreduction
Authors: Ming Meng-Ting , Wang Yu-Chen , Tao Wei-Xue , Shi Wen-Jie , Zhong Di-Chang , Lu Tong-Bu
Published: July 2023

Binuclear Co2-MOF(–NH2) catalyst outperformed its mononuclear counterpart by 10.5 times with a CO yield of 2.44 mmol gCo−1h−1. This highlights the enhanced photoinduced CO2 reduction through synergistic catalysis at two Co sites.
A redox active organodiselenide as an efficacious catalyst for the synthesis of oxygen-containing heterocyclic compounds
Authors: Rahman Noimur , Kushwah Nisha , Priyadarsini K. Indira
Published: July 2023

3,3′-Diselenodipropionic acid (DSePA) is a water-soluble deaminated analogue of selenocystine.
Tetrahydroisoquinoline based 5-nitro-2-furoic acid derivatives: a promising new approach for anti-tubercular agents
Authors: Nandikolla Adinarayana , Khetmalis Yogesh Mahadu , Sangeetha Guruvelli Padma Vijaya , Chandu Ala , Swati  , Kumar Muthyala Murali Krishna , Sharma Vivek , Murugesan Sankaranarayanan , Chandra Sekhar Kondapalli Venkata Gowri
Published: July 2023

We designed, synthesized, & tested 26 novel tetrahydroisoquinoline carbohydrazides for their anti-TB activity. NFT-12, 19 & 20 are the most active ones with MIC 0.78 μg mL−1. These compounds exhibited synergism with INH in drug combination studies.
Solvothermal synthesis of (Na0.8K0.2)0.5Bi0.5TiO3 piezoelectric catalyst with morphotropic-phase-boundary structure for efficient dye degradation
Authors: Xie Ning , Jiang Li , Hou Yuanwen , Fu Hongquan , Zhang Juan , Gao Hejun , Liao Yunwen
Published: July 2023

In this work, using a simple one-step solvothermal method, a piezoelectric catalyst of (Na0.8K0.2)0.5Bi0.5TiO3 with a morphotropic phase boundary (MPB) was successfully prepared and applied to decompose methylene blue dye.
Aryl boronic acid-controlled divergent ring-contraction and ring-opening/isomerization reaction of tert-cyclobutanols enabled by nickel catalysis
Authors: He Zhichang , Wang Zhengwen , Gao Zhao , Qian Hongwei , Ding Wangqiannan , Jin Hongwei , Liu Yunkui , Zhou Bingwei
Published: July 2023

We present an aryl boronic acid-controlled divergent ring-contraction and ring-opening reaction of tert-cyclobutanols, affording cyclopropyl aryl methanones and 1-aryl butan-1-ones, respectively.
Iridium–phosphine ligand complexes as an alternative to rhodium-based catalysts for the efficient hydroformylation of propene
Authors: Yao Chenfei , Xiong Wenjie , Sun Haining , Li Chenzhou , Wu Youting , Zhang Zhibing , Hu Xingbang
Published: July 2023

Iridium based catalysts show comparable reactivity to the rhodium catalysts for the hydroformylation of propene.
Cu-catalyzed carboxylation of organoboronic acid pinacol esters with CO2
Authors: Maeda Chihiro , Cho Takumi , Kumemoto Ren , Ema Tadashi
Published: July 2023

Cu-catalyzed carboxylation of organoboronic acid pinacol esters with CO2provided a variety of carboxylic acids including di- and tri-carboxylic acids.
Photocatalytic seawater splitting for hydrogen fuel production: impact of seawater components and accelerating reagents on the overall performance
Authors: Yesupatham Manova Santhosh , Augustin Ashil , Agamendran Nithish , Honnappa Brahmari , Shanmugam Mariappan , Sagayaraj Prince J. J. , Thennarasu G. , Sagaya Selvam N. Clament , Sekar Karthikeyan
Published: July 2023

Schematic representation of historical progress in photocatalytic sea water splitting.
ZIF-8 coating on graphite: a high-rate and long-term cycling anode for sodium-ion capacitors
Authors: Liang Xueying , Mao Zhifei , Shi Xiaojun , Zhang Taoqiu , Zheng Zhi , Jin Jun , He Beibei , Wang Rui , Gong Yansheng , Wang Huanwen
Published: July 2023

The ZIF-8 layer is uniformly grown on the graphite surface to promote high-rate and long-term cycling solvated-Na+ co-intercalation reactions in an ether electrolyte.
Two-fluid reconnection jets in a gravitationally stratified atmosphere
Authors: Popescu Braileanu B. , Keppens R.
Published: July 2023

Context. Density decreases exponentially with height in the gravitationally stratified solar atmosphere, and therefore collisional coupling between the ionized plasma and the neutrals also decreases. Reconnection is a process observed at all heights in the solar atmosphere.

Aims. Here, we investigate the role of collisions between ions and neutrals in the reconnection process occurring at various heights in the atmosphere.

Methods. We performed simulations of magnetic reconnection induced by a localized resistivity in a gravitationally stratified atmosphere, in which we varied the height of the initial reconnection X-point. We compared a magnetohydrodynamic (MHD) model and two two-fluid configurations: one in which the collisional coupling was calculated from local plasma parameters, and another in which the coupling was decreased so that collisional effects would be enhanced. The latter setup has a more representative solar collisionality regime.

Results. Simulations in a stratified atmosphere show similar structures in MHD and two-fluid simulations, with strong coupling. However, when collisional effects are increased to attain representative parameter regimes, we find a nonlinear runaway instability, which separates the plasma-neutral densities across the current sheet (CS). With increased collisional effects, the initial decoupling in velocity heats the neutrals and this sets up a nonlinear feedback loop, according to which neutrals migrate outside the CS, replacing charged particles that accumulate toward the center of the CS.

Conclusions. The reconnection rate has a maximum value of around 0.1 for both reconnection heights, and is consistent with the locally enhanced resistivity used in all three models. The early-stage plasmoid formation observed near the end of our simulations is influenced by the outflow from the primary reconnection point, rather than by collisions. We synthesized optically thin emission for both MHD and two-fluid models, which can show a very different evolution when the charged-particle density is used instead of the total density. Our simulations have relevance for observed plasmoid features associated with chromospheric to low-coronal flare events.
Combining astrometry and JUICE – Europa Clipper radio science to improve the ephemerides of the Galilean moons
Authors: Fayolle M. , Magnanini A. , Lainey V. , Dirkx D. , Zannoni M. , Tortora P.
Published: July 2023

Context. The upcoming JUICE and Europa Clipper missions targeting Jupiter’s Galilean satellites will provide radio science tracking measurements of both spacecraft. Such data are expected to significantly help estimating the moons’ ephemerides and related dynamical parameters (e.g. tidal dissipation parameters). However, the two missions will yield an imbalanced dataset, with no flybys planned at Io, condensed over less than six years. Current ephemerides’ solutions for the Galilean moons, on the other hand, rely on ground-based astrometry collected over more than a century which, while being less accurate, bring very valuable constraints on the long-term dynamics of the system.

Aims. An improved solution for the Galilean satellites’ complex dynamics could however be achieved by exploiting the existing synergies between these different observation sets.

Methods. To quantify this, we merged simulated radio science data from both JUICE and Europa Clipper spacecraft with existing ground-based astrometric and radar observations, and performed the inversion in different configurations: either adding all available ground observations or individually assessing the contribution of different data subsets. Our discussion specifically focusses on the resulting formal uncertainties in the moons’ states, as well as Io’s and Jupiter’s tidal dissipation parameters.

Results. Adding astrometry stabilises the moons’ state solution, especially beyond the missions’ timelines. It furthermore reduces the uncertainties in 1/Q(inverse of the tidal quality factor) by a factor two to four for Jupiter, and about 30–35% for Io. Among all data types, classical astrometry data prior to 1960 proved particularly beneficial. Overall, we also show that ground observations of Io add the most to the solution, confirming that ground observations can fill the lack of radio science data for this specific moon.

Conclusions. We obtained a noticeable solution improvement when making use of the complementarity between all different observation sets. The promising results obtained with simulations thus motivate future efforts to achieve a global solution from actual JUICE and Clipper radio science measurements.
Urbanization of the population within the context of urban agglomeration development: a scientific perspective
Authors: Niiazalieva K.N. , Assylbayev A.B. , Alymkulova A.S. , Ploskikh V.V. , Assylbayev K.B.
Published: July 2023

This paper addresses the issues arising from active and unidirectional migration towards the capital city of Bishkek. The relevance of this work lies in resolving the problems associated with the disproportionate development of internal migration and the capacity of the city. Specifically, this paper examines problematic issues related to the development of residential areas for migrants and the necessity of forming small reference cities around Bishkek. Additionally, we study the housing and social problems that emerge due to the lack of a systematic approach to managing the natural process of urbanization. As a recommendation, we propose building a fundamentally new model of population urbanization in the form of the Bishkek agglomeration to address these impending issues. Therefore, the purpose of this study is to identify problems related to new migration residential buildings and justify the need to build supporting small towns around Bishkek. Finally, we provide recommendations for government and administrative services of the republic in regulating issues related to migration and housing policies.
Sustainable development at commercial properties
Authors: Boriskina Yulia Ivanovna
Published: July 2023

The research is dedicated to sustainable development at commercial properties in Russia. A case study of shopping centers developers, supermarkets and DIY store practices have been conducted to estimate the role of retail developers at creating the comfortable urban environment. The survey points out that sustainable measures are widely used by developers, including water and energy efficiency, waste management, smart building technologies and even a green mall construction. Conscious behavior and healthy lifestyle are promoted, such social aspects as inclusivity, accessibility, charity and direct help are shared. Similar elements of sustainable development for different segments of retail are presented in the table, as well as specific examples are given. Motivation of real estate developers to attribute to creating comfortable urban environment is highlighted and certain effects are demonstrated.
The green agenda influence on the methodology of housing and communal services pricing
Authors: Krylova Anna , Nikishov Daniil
Published: July 2023

The paper proves the necessity of revising the methodology of housing and communal services pricing in connection with the implementation of the city development concept within the framework of the green agenda and the strategies and programs development aimed at ecologically important problems resolution, clean technologies development, natural resource conservation, and the increase in the population living standards as well. It is shown that the creation of ecologically sustainable urban systems requires not only the development and implementation of innovative technologies and attraction of financial resources but also the assessment of their consequences, such as changes in the volumes of consumed housing and communal services and tariffs for them. Adjustments to the methodology of housing and communal services pricing should ensure the process of providing quality services at affordable prices for consumers. The main results of the study demonstrate that modern cities should utilize innovative solutions aimed at changing the approach to operating and managing housing and communal services to meet the requirements of ecological safety and sustainability. Implementing the recommendations to improve the ecological situation and sustainability of housing and communal services can become a key factor in creating a peaceful, successful, and efficient urban environment.
Urban architectural heritage, not Real Estate
Authors: Nguyen Thi Hanh Nguyen , Nguyen Thi Nhu Trang
Published: July 2023

Vietnam is one of the fastest urbanizing countries in East Asia. According to September 2022 data, the national urbanization rate has reached about 41.5%, with 888 urban areas [1]. Along with that, real estate prices skyrocketed. As of 2020, the average housing price in the place of the lowest increase is also 3 times higher than in 2011 [2]. Rapid urbanization and rising property prices are two of the many factors that contribute to the difficulty of preserving urban architectural heritage. Owners when faced with the choice of preserving their heritage or “converting the estate” into real estate for sale often lean towards the latter. This theoretical paper aims to test the hypothesis about the first option - conservation of heritage whether there are long-term benefits for the owners as well as the community and society. The study is based on the analysis of changes in the value of urban architectural heritage and real estate over time. Combined with lessons learned on how to deal with heritage from cities around the world, the study raises the view that Urban Architectural Heritage is a form of long-term net-earning asset, not quick-profit Real Estate. The study also emphasizes the factors that create urban identity such as long-standing traditions and differences in urban architecture, which play a key role in helping to reverse the trend of globalization, which is a hot issue of many present urban.
Green industrial buildings in Vietnam from experts’ point of view
Authors: Dang Hoang Quyen , Le Van Thuong
Published: July 2023

In recent years, there has been a remarkable rise in the number of certified green building projects in Vietnam, with industrial buildings accounting for the largest portion. The purpose of this research is to evaluate the ability to achieve points of industrial buildings in some green building systems under specific conditions of Vietnam. Another aim of the study is to point out the distinct features of industrial buildings that influence their design, including heavy industry, light industry, and industrial buildings with cleanrooms. Accordingly, this will contribute to increasing the number of industrial buildings that achieve green certification in the future. The study uses a mixed-methods approach, including expert interviews, field surveys, and meta-analysis. The research results will serve as a reference document for sustainable development-oriented design consultants and for organizations establishing green construction criteria systems to be able to upgrade to newer versions with higher adaptability for industrial works.
Project management in construction while ensuring environmental safety
Authors: Luchkina Veronika V.
Published: July 2023

All stages of the object's life cycle consistently address environmental safety issues of construction projects in accordance with legal requirements. The analysis of environmental security problems in practice necessitates the consideration of multidimensional environmental challenges, emphasizing the significance of the research in this area. In the development and implementation of projects, emphasis must be placed on the sustainable development of the construction site and the surrounding region. Sustainable development in the construction industry entails the practical fulfillment of a set of indicators, including environmental, social, and economic factors, at the required levels. This study aims to investigate project management issues in the construction industry across all stages of the lifecycle, with a focus on ensuring environmental safety. The study involved analyzing current trends and approaches to the environmental component of construction projects, developing a project for an automated construction waste management system in Russian cities, conducting a SWOT analysis of the digital control project for construction and demolition waste management, assessing the economic efficiency of implementing the digital control project, and creating an algorithm for managing construction projects while ensuring environmental safety. The findings of this study offer practical recommendations that may be useful for project managers and civil engineers in the construction industry for ensuring environmental safety during project management.
Using sustainable timber in architecture in Vietnam
Authors: Dang Hoang Vu
Published: July 2023

Sustainable architecture trends influence the choice of materials both indoors and outdoors, making timber a strongly preferred material. Increasing numbers of architects, developers, governments, educational institutions and corporations are embracing wood, since timber replace other construction materials in many structures while providing the same functionality. The combination of a rising concern about global warming and sustainability; a growing desire to preserve traditional Vietnamese culture; recent scientific and technological advances which have made wood an even more versatile building resource; and an international push for increased use of timber in construction, makes Vietnam’s timber architecture perfectly placed for expansion. The article presents findings on why using timber is good for environment and the use of timber in design as well as timber revolution in construction and architecture in Vietnam. By applying new technology and methods, and through using sustainably-sourced plantation wood, there is huge potential for the revival of wooden architecture in Vietnam. This would have significant environmental and economic advantages for the country and most importantly, create opportunities to continue the long-standing tradition of using wood for thousands of years in the construction and architectural works, from traditional houses to public buildings for community in Vietnam.
Import substitution mechanism for the construction industry in Russia
Authors: Panteleeva Margarita Sergeyevna , Pletneva Alexandra Antonovna
Published: July 2023

This study is important for most states, but especially for Russia in the current political situation. Dependence on foreign goods and services can turn out to be not the best result, as, for example, happened in Russia. One of the most important industries in the country is the construction industry. And it currently requires global import substitution. However, to change the situation, it is necessary to understand that the import substitution process cannot happen instantly. Governments of many countries should work on it comprehensively in order not to come to the situation in which the Russian Federation finds itself. Long-standing principles of exporting goods to foreign markets have shown their failure. The massive sale of raw materials and the purchase of a wide range of goods for various spheres from abroad has greatly weakened the country’s economy. This has led to the need to find new solutions on the part of the state. The author’s import substitution mechanism proposed in the article is universal for the construction industry, as it is a system of managerial decisions that allow to develop the country’s own production systematically and to gradually abandon foreign goods. This mechanism will allow for a timely assessment of the production, economic and technological potential of the industry, taking into account the interaction of state and commercial organizations.
The effectiveness of industrial housing construction enterprises
Authors: Spirin Alexander
Published: July 2023

An industrial housing construction enterprise (IHCE), as a prominent representative of the construction industry enterprises that follow global trends in the field of scientific and technological progress, is a complex organizational and production structure requiring its performance to be evaluated. In general, there are six main effectiveness indicators of industrial housing construction enterprises: innovation, efficiency, productivity, profitability, quality, and environmental compatibility. The enterprise’s profitability reflects the efficiency of its commercial activities and depends on the productivity and profitability indicators. The IHCE’s productivity reflects the volume of construction products that the enterprise is able to produce on time, and is characterized by such an indicator of its production system as output capacity. The efficiency of an industrial housing construction enterprise lies in the ratio of the resources actually consumed by it during the production process to their standard consumption rates. Quality reflects the conformity of the end product with its functioning criteria defined during the design. Innovation involves changing enterprise systems based on the application of best practices. Environmental compatibility characterizes the degree of negative effect on the environment from the production activities of IHCE. The control of these six indicators coupled with strategic planning represent the IHCE productivity.
Parametric model for the analysis of urban planning activities
Authors: Diyachkova Olga , Mikhailov Aleksander , Yakunina Galina
Published: July 2023

Various mathematical approaches can be used to analyze the performance of decision-makers. Our parametric model is based on comparing the distribution functions of the public green spaces areas (PGSA) of urban significance with a lognormal distribution. The data from the St. Petersburg Law No. 430-85 of October 08, 2007, were taken as the initial data. “On public green spaces.” The values of the logarithms of the urban PGSA were taken to construct the empirical and theoretical distribution functions. The maximum moduli of difference are calculated to compare empirical functions with each other, theoretical functions with each other, and theoretical and empirical functions. A comparison of areas using our model showed some correlations between trends in the formation of PGSA of urban significance and morphotypes of housing development.
Study of the comfort of urban visual environments in the city of Cheboksary
Authors: Metelkova Lilia , Kupriyanova Marina , Drizhenko Maria
Published: July 2023

The current research highlights the problem of ecology of the urban visual environment of a large city on the example of the capital of the Republic of Chuvashia, the city of Cheboksary (Cheboksary). Given the saturation of the city with complex geometric forms and objects of architecture of different styles and epochs, the authors considered it important to study the issue of the perception of the city by the population as a generator of natural influences on the visual sense organs. The subject of the study is the influence of architectural forms of buildings of urbanized space on the psychophysiological comfort of a person, as well as the level of noise pollution by vehicles of the city under study. As the objects of research the authors defined the buildings and architectural ensembles of the city. As a research method, the authors used testing with systematically selected formulations of questions to assess the general perception of aesthetic beauty in cities by residents. The main task of the authors was to define recommendations for creating visual and psychological comfort in the artificial urbanized environment of Cheboksary, as well as to develop a system for identifying irritants and factors of "urban stress".
Sedang communal house in Kon Tum – conservation potential for continuing development
Authors: Khuat Hung Tan
Published: July 2023

Sedang is one of the ethnic groups in Kon Tum, Vietnam with unique customs and practices expressed in traditional lifestyle, costumes, rituals, festivals etc. Previously, the Sedang people's life was always attached to a communal house, also known as Rong house. With its uniqueness, Sedang communal house contains many architectural, cultural and aesthetic values and has been a major place of living of the village community. However, recent economic, cultural and social changes in Kon Tum have caused the communal house to gradually lose its role as a cultural and religious centre, and at the same time face the degradation and destruction. The paper used the method of Heritage Conservation Potential Assessment proposed by Nahoum Cohen, adapted to specific contexts to analyse architectural features, assess values, and assess conservation potential of Sedang communal house, thereby proposing solutions to conserve and promote its values in the continuing development associated with the community life.
Impact on climate change through world urbanization
Authors: Kaepkulov Kanybek , Omuraliev Duishon , Kanybek Kyzy Nargiza , Kanybek Kyzy Benazir
Published: July 2023

This article discusses the environmental problems of our time, in connection with the increase in population and cities and the impact of global urbanization on the global climate change of the Earth and its use to reduce surface temperature by increasing the albedo reflectivity of urban surfaces. The study improved previous similar works due to the global spatial coverage of all settlements of the Earth's development and developed a comprehensive assessment of the degree of influence and detailed measurements of 15 parameters of modifications of surface albedo calculations using data developed by the Research Institute of Building Physics of the CIS and using satellite sensing Google Earth Pro, from a height of 5 km. As a result of the study, it was found that the urbanized territories of the Earth amounted to - 0.1514% of the Earth's area and the heat release from the development of the whole world will decrease by - 7.8 million MW, which will be -8.6 Gt CO2. The average value of the Earth's temperature will decrease by 0.003°C in a year and by 2100 by 0.35°C. This measure is recommended as an addition to the main approaches to solving the climate problem.
The health risks of citizens due to PM2.5 exposure in Ha Noi, Vietnam
Authors: Hong Hien Tran Thi , Nguyen Minh-Thang , Le Anh
Published: July 2023

A cancerous and non-cancerous risk assessment for PM2.5 exposure is essential, especially in developing children. PM2.5 was determined in concentrations in the Hanoi area both inside and outside the house according to 2019 data before the Covid epidemic, and the health impact assessment was performed for each subject according to the US. Research has also shown that the distribution of indoor PM2.5 concentration data in Hanoi has been determined according to the Weibull with a shape parameter is 8,695 and a scale parameter is 3,695. The average daily indoor PM2.5 concentration at four houses was higher than 20 μg/m3 higher than the warning of WHO guidelines. However, the average concentration on some days exceeded the threshold of Vietnam’s standard. Meanwhile at K3, due to its location in the old town, the PM2.5 concentration is quite stable during the day and at a higher level than in other locations. Therefore, the effect of PM pollution in city houses is necessary for concern, monitoring and solving. This problem is not only present in Vietnam, this is the same in other countries such as some other research. So need to have guidelines when building new houses and inform citizens.
Foreign Experience in Renovation of Pedestrian Spaces in Coastal Territories
Authors: Burilo Nadezhda , Kruglikova Anastasiia , Kapkaikin Vladimir , Volikova Aleksandra , Kolyagina Victoria
Published: July 2023

In this scientific work, pedestrian spaces of embankments, boulevards, streets of the central part of the city are considered from the perspective of architectural and planning principles and compositional techniques used in their formation. The foreign and historical experience of renovation of pedestrian spaces of the central part of the city, as well as coastal territories is considered. The interrelation of pedestrian spaces and the planning structure of the city as a whole is revealed. Variants of the organization of pedestrian streets in residential buildings have been studied. The reasons for the design that negatively and positively affect the creation of pedestrian spaces are determined. The ecological situation in Russia (on the example of Novosibirsk) related to recycling collection points is studied separately, possible ways of solving the problem for creating environmentally comfortable pedestrian and walking spaces of the city are proposed. Proposals are made to use the positively proven experience of European countries and the United Arab Emirates in the field of solid municipal waste management in the Russian Federation, successful domestic projects are presented. The results obtained show the importance of developing a network of solid waste collection points in Novosibirsk within pedestrian spaces.
Modeling the dependence of the noise level on the speed of vehicles
Authors: Abdikhalilov Fitrat Abdikhalil ugli , Khotamov Asadulla Toshtemirovich , Buranov Samandar Bakhtiyarovich
Published: July 2023

In this research work, the analysis of the noise level emitted by vehicles on the streets of the city of the following objects located around the public roads of Tashkent city: Kushbegi, Koshkurgan, Nukus, Altintepa, Temur-Malik, Beshqayragoch streets is presented. Based on the data obtained as a result of natural experiments, the laws of the impact of vehicle movement speed, speed, and composition on traffic noise were determined, according to which a program was developed to find the value of the noise level using the values of the vehicle weight and movement speed in the developed model.
The main problems of the transport system of the city of nukus and recommendations for their elimination
Authors: Khotamov Asadulla Toshtemirovich , Jumabaev Dauletbay Maratovich , Abdikhalilov Fitrat Abdikhalil ugli
Published: July 2023

Nukus is the object of observation. Currently, 312.4 thousand inhabitants live here. The official date of its formation is considered to be 1860, although a withdrawal was revealed that Nukus is a city with an older collection. On its territory from the south, the northern rows of canals pass, which are located in irrigation functions in the northern and northeastern regions of the Republic. The Dustlik Canal (old name - Kyzketken) opens the city into two parts (the old one is to the west, the new one is to the east and southeast). On the territory of the city there is residential development with a grid of small blocks and a predominance of local type buildings. There are several blocks of modern individual buildings that have brought some order to this part of the city. The new city was built according to the master plans of 1936, 1953, 1964 and 1982, and it owes it a regular rectangular system of city blocks. This article analyzes the current state of the transport system of the city of Nukus and the main problems in its operation. Questions on elimination of analyzed problems are considered.
Pedestrian Flows Analysis to Create a Sustainable Development Concept for a Metropolitan Area
Authors: Altunina Yulia , Boikova Galina
Published: July 2023

This article presents the results of structuring the territory adjacent to Pryanishnikov Street in the Timiryazevsky District of the Northern Administrative District of Moscow. The key objects of the street road network that form the pedestrian flows are highlighted. The rules of interaction between pedestrian flows and the influence of external factors have been established. Based on this we constructed undirected graphs reflecting the connectivity of pedestrian routes, the influence of infrastructure objects on them, and the density of flows depending on the time of day and days of the week. Such results are the basis for simulation modeling, allowing to obtain an adequate model to assess the impact of decisions on the area development, and the operational management of traffic and pedestrian flows of the street road network.
Development of a Predictive System Model Using Big Data in the Transport Sector
Authors: Lyapuntsova Elena V. , Boyko Tatiana A.
Published: July 2023

This article discusses the possibility of creating a predictive system model using smart innovative technologies to generate a request for spare parts for the automotive industry using big data analysis, which is quite relevant for many transport, logistics and repair companies. The authors seek to generalize and systematize research in this area, with the possibility of integrating practical knowledge and big data for the implementation of urgent management and logistics tasks that will allow economic growth. In addition, the relevance of timely diagnostics and rapid leveling of vehicle defects is explored in light of current market conditions. Using data from the domestic market, a hypothesis has been proposed for specific parts and assemblies that may fail for a given car model. The top-selling models on the Russian second-hand market, consisting of 9 brands and 27 models from foreign manufacturers, were selected. An algorithm for analyzing the selected data set was developed, implemented using the Python programming language in Jupiter Notebook. Following a comprehensive investigation of the car's flaws, stacked diagrams were created to show the flaws, and the relevance of the 27 most popular model's flaws and their structural makeup were determined according to the country of origin. A model for predicting used car spare parts based on the results of the analysis of the structure of defects has been developed. The model combines data from revocable companies, feedback from car owners, maintenance services and component suppliers. Also, this article establishes the direction for future research in this area.
A comparative assessment of the efficiency of the “South-West” and “North-South” transport corridors and prospects for their development
Authors: Abrahamyan Vahram , Petrosyan Suzanna
Published: July 2023

In order to ensure the development of the national economy, it is necessary to expand foreign economic ties and increase the volume of trade in foreign economic activity. The solution to this problem will be facilitated by the “New Silk Road” mega-program implemented by China, which, as a result of the implementation of the “One Road – One Belt” project, should contribute to the deepening of economic and cultural ties between the countries of this belt. The formation of international transport corridors “North-South” and “South-West” will allow different countries to participate in this mega-program enabling to organize cargo flows of goods from China, India, the countries of Southeast Asia to Russia, the Baltic countries and the European Union more effectively. This study is devoted to the formation, analysis and comparative assessment of the effectiveness of alternative routes “North-South” and “South-West”.
Systematic analysis of the essential characteristics of the concept “economic and technological development zone”
Authors: Wenjun Li
Published: July 2023

Based on the empirical data on the development of special economic zones in countries with developed and developing economies, this article illustrates the positive effect of the state regional development policy and confirms the effectiveness of the technology under study. The purpose of this article is to determine the essence of the Economic and Technological Development Zones and to identify their main characteristics. To achieve this goal, a systematic review was chosen as a research method using the meta-analysis method, in accordance with which a selective study of 76 publications included in the free search engine for scientific publications was carried out, within which, according to the selected criteria for the structure of the article, the age of the source, the presence in the keywords of the research object as well as the availability of the results of theoretical and empirical analysis, 26 publications were selected, the meta-analysis of which made it possible to identify the essential properties and characteristics of the category Economic and Technological Development Zone. The main condition for the successful implementation of the Development Zones project is the creation of industrial symbiosis, taking into account the environmental aspect and the adaptation of the Development Zone strategies to the institutional conditions of specific countries and regions.
Regional Potential of Armenia for SMEs Clustering: an Empirical Evidence
Authors: Manukyan Izabella
Published: July 2023

The process of clustering of small and medium-sized enterprises (SMEs) is complex and multidimensional, as well as risky and costly. The purpose of this study is to empirically substantiate the presence of regional potential for clustering of SMEs in the Republic of Armenia (RA) by evaluating the most appropriate set of indicators from the available variety. The quantitative analysis encompasses the following measures: Kim’s Location Quotient, Krugman’s Concentration Quotient, shift-share indicator with quotient of national shift, industrial mix and regional shift, structural shift along with the Gini’s Localization Quotient. The data were obtained from the database of the Statistical Committee of the Republic of Armenia (SCRA), which, however, did not fully encompass a detailed knowledge base concerning all economic sectors of the country’s regions. This served as a limitation for the study. In addition, there exist no similar quantitative studies on the problems of regional diagnostics of Armenia in the scientific literature. The study made it possible to identify promising regions for SMEs clustering in RA. The obtained results can be applied in future for a more specific study of opportunities of forming a supercluster that will unite the potential of several regions of RA at once.
Professional education of specialists in customs affairs in higher education institutions of the Russian Federation: trends, quality and partnership
Authors: Volkova Victoria , Korovyakovskiy Denis , Butyrin Andrey
Published: July 2023

The article considers tendencies and trends in higher education of specialists in customs affairs in higher institutions of the Russian Federation. The authors analyzed and described the international experience of professional education of customs specialists, defined similarities and differences between international and Russian education strategies, indicated unfolding trends in education of local customs specialists such as job-oriented learning methods at all levels of education, e-learning and distance learning opportunities with reference to the digital customs system, counseling and mentoring programs. The future prospects of customs education in Russia are bound to its further integration in the global system to avoid isolated professional education of customs specialists, creating attractive opportunities for foreign students to offer a wide range of skills and competences in customs programs based on platforms of Russian academic institutions as well as taking part in the membership programs in collaboration with the International Network of Customs Universities (INCU). The network approach to the international scientific and educational system integration is based on the growing collaboration between universities providing professional education as well as development of information and telecommunication technologies.
Modeling the assessment of a region’s innovative potential
Authors: Milekhina Olga , Adova Irina , Ibragimov Garib
Published: July 2023

The paper is devoted to the design and modeling of the system for assessing a region’s innovative potential to justify management decisions in public authorities. The purpose of the study is to substantiate the feasibility of using digital tools and artificial intelligence to formalize and visualize the assessment results. The use of a multi-criteria system for assessing the level of a region’s development, which includes four areas, characterized by 46 indicators, is difficult to interpret to justify management decisions. Based on the theory of fuzzy logic, logical programming methods focused on the application of a system of facts and rules, formal knowledge representation languages for describing subject areas and methodology for developing expert systems for complex problem solving, taking into account the empirical knowledge of experts, a model for assessing the innovative potential of a region is proposed. A case study of one of the Russian regions is illustrated by graphs of 3D visualization of the optimal combination of parameters of the level of innovative development. The formed triad of sustainable and safe development makes it possible to display the behavior of the regional innovation development index as a whole on the basis of social, economic and environmental indicators of sustainability.
State of personal insurance in the Kyrgyz Republic at the present stage of development in the conditions of the COVID-19 pandemic
Authors: Murzalieva Elnura , Askarova Ainura , Abdyldaeva Umut , Abdyrakhmanova Gulchehra , Khalilov Atakhan
Published: July 2023

The article discusses the current state of personal insurance in the Kyrgyz Republic, which is a very significant financial instrument for maintaining the stability of the welfare of the country's population. The legislative definition of the concepts of insurance activity, the insurer, the insured, the contract of personal insurance, the grounds for concluding a contract of personal insurance are being studied. The classification of types of personal insurance according to various criteria is given. Life insurance services provided by individual insurance companies of the republic are considered. The dynamics of insurance premiums and insurance payments of several leading insurance companies in Kyrgyzstan in recent years in the context of the ongoing financial and economic crisis caused by the COVID-19 pandemic are analyzed. In the current period, insurance companies have demonstrated an increase in the volume of insurance premiums and insurance payments for personal insurance. At the same time, the development of life insurance (accumulative) remains at a low level. For further progressive movement of this segment of insurance, it is necessary to implement several key tasks.
Preface
Authors: Iliev Teodor , Stoyanov Ivaylo , Mihaylov Grigor , Fantidis Jacob
Published: July 2023

International Conference on Electronics, Engineering Physics and Earth Science (EEPES 2023), 21 - 23 June, 2023, Kavala, Greece.
Energy efficiency index of industry in the conditions of energy transition in Bulgaria
Authors: Koeva Dimitrina
Published: July 2023

Regarding the energy transformation and the Net Zero Scenario, Bulgaria’s effort is to maintain a coherent energy policy with the EU-28, in accordance with its geographical and climatic conditions and the current state of the energy intensive “Industry” sector. The general analysis of the current situation in the country, synthesised in this paper, is completed by an analysis of the specific technical features of the operation of nearly 1700 induction motors in two highly energy intensive enterprises: a chemical factory and a food factory. The energy losses on an annual basis can be determined by using several parameters and magnitudes. Recommendations and key factors for energy efficient investments are also presented.
A method for derating power of a MW directdrive wind turbine permanent magnet generator as over allowable working temperature
Authors: Xuan Hung Vu
Published: July 2023

The use of direct-drive permanent magnet (PM) generators for MW wind application is increasing, because they have higher reliability and less maintenance than geared generators such as geared PM generators and geared induction generators. The price of the direct-drive PM generator is high, taking 10%-15% price of its overall system. Therefore, the generator mush be safely operated to have a long life. For a PM generator, its performance is sensitive to ambient and working temperature so that it needs to be monitored. In this paper, a method is proposed, combining the practical knowledge of a generator and theory to give permissible maximum generated power under certain ambient condition. The stator iron loss of a MW permanent magnet generator in direct-drive wind turbine application is presented as a function of rotor speed or frequency. The generator’s copper loss and electromagnetic torque versus winding temperature and current are investigated. The relationship of voltage, current and active power to the generator temperature is addressed. The given performances can be used to choose the generator’s working parameters such as voltage, current, output power for avoiding generator damaged by over temperature.
Carbon footprint of reservoirs in Bucharest
Authors: Dumitran Gabriela Elena , Vuţă Liana Ioana , Neagoe Angela , Tică Eliza-Isabela , Popa Bogdan
Published: July 2023

The paper presents the carbon footprint of the 10 reservoirs on Colentina river in Bucharest. There were presented entry data and hypotheses used by G-res tool who was applied for determining GHG emissions of these reservoirs. Therefore, we now have a good picture about their contribution to the overall GHG emissions in Bucharest.
Assessments regarding the performances of wind turbines from the roofs of buildings
Authors: Budea Sanda
Published: July 2023

In the current energy context, wind energy remains the main renewable energy source. Greater attention should be paid to small-sized wind turbines, mounted on the roofs of buildings, for their many advantages: easy to construct, do not require additional space, easy maintenance, eliminate losses from the system and transport costs, can provide alone or in addition to energy solar, the entire energy need of buildings, etc. The present paper analyzes three models of wind turbines that can be placed on the roofs of buildings: crossflow wind turbine Banki, ridge blade turbine and aeroMINE model. The analysis refers to their constructive solutions, the working principle, the optimal design for a good power coefficient and the energy that can be obtained with these small turbines for urban applications and not only.
Effects of exhaust gas recirculation (EGR) rates on emission characteristics of ethanol and methanol diesel blended fuels
Authors: Iliev Simeon
Published: July 2023

The introduction of ever more stringent diesel emission standards is associated with a reduction in greenhouse gases. These limitations push many researchers working in this field to look for alternative solutions with the aim of lower greenhouse gas emissions. One of the alternatives is the use of alternative fuels and additives in order to reduce the consumption of fossil fuels. The use of alternative fuels such as ethanol, methanol and others in combination with traditionally used technologies such as exhaust gas recirculation (EGR) is one of the solutions that would lead to the limitation of diesel engines emissions. The aim of the present study is to investigate the performance of a diesel engine with ethanol and methanol additives combined with different degrees of recirculation on engine emissions. For this purpose, a model of a diesel engine with EGR with the possibility of working with ethanol and methanol additives has been developed.