bluuebunny/crossref_metadata_2025 huggingface dataset:
Speed limit of quantum metrology
Authors: Maleki Yusef , Ahansaz Bahram , Maleki Alireza
Published: July 2023

Quantum metrology employs nonclassical systems to improve the sensitivity of measurements. The ultimate limit of this sensitivity is dictated by the quantum Cramér–Rao bound. On the other hand, the quantum speed limit bounds the speed of dynamics of any quantum process. We show that the speed limit of quantum dynamics sets a fundamental bound on the minimum attainable phase estimation error through the quantum Cramér–Rao bound, relating the precision directly to the underlying dynamics of the system. In particular, various metrologically important states are considered, and their dynamical speeds are analyzed. We find that the bound could, in fact, be related to the nonclassicality of quantum states through the Mandel Q parameter.
Investigation of bimodal characteristics of the droplet size distribution in condensation spray
Authors: Okajima Junnosuke , Kato Mitsuki , Hayakawa Akihiro , Iga Yuka
Published: July 2023

To understand the generation process of airborne droplets during exhalation, this study investigates the mechanism of bimodal characteristics of the size distribution of droplets generated in a condensed spray flow. The phase change process in the condensed spray flow was estimated based on the droplet size distribution measured by a phase Doppler particle analyzer and the temperature distribution measured by a thermistor. On the central axis, the size distribution was unimodal in the spray interior. In contrast, bimodality of the size distribution at the outer edge of the spray flow was observed. At the edge of the spray flow, a large temperature gradient was formed. This indicates that condensation actively occurred at the outer edge. For the same reason as outlined above, condensation did not progress at the spray center because of the consumption of water vapor at the outer edge by the condensation, and the droplet diameter did not change significantly. Hence, owing to the difference in the local phase change process between the center and outer edge of the spray, large and small droplets can exist simultaneously in the middle region. As a result, the size distribution of the condensation spray is bimodal.
Erector spinae plane block in laparoscopic colorectal surgery for reducing opioid requirement and facilitating early ambulation: a double-blind, randomized trial
Authors: Park Jin-Woo , Kim Eun-Kyoung , Park Seongjoo , Han Woong Ki , Lee Jiyoun , Lee Ji Hyeon , Nahm Francis Sahngun
Published: July 2023

Various techniques have been formulated to reduce pain and ensure early recovery after surgery, as these are major concerns among surgeons, anesthesiologists, and patients. Erector spinae plane block (ESPB), the injection of local anesthetic into the fascial plane, is a simple and novel analgesia technique widely used due to its minimal risk of complications. ESPB has been tried in various surgeries; however, no study has reported its use in colorectal surgery. This study investigated whether ESPB could promote early recovery following laparoscopic colorectal surgery (LCS) by reducing opioid consumption and pain intensity. After randomization into the ESPB or control groups, an ultrasound-guided ESPB was performed at the thoracic 10th–11th level with 40 mL of 0.25% bupivacaine or normal saline. The ESPB group used less fentanyl during the initial 24 h after surgery (P = 0.004) and experienced less pain (P < 0.05 at all-time points) than the control group. The time to the first ambulation and the length of hospital stay were shorter in the ESPB group than in the control group (P = 0.015 and P = 0.008, respectively). In conclusion, ESPB could promote early recovery by reducing opioid consumption and pain intensity in patients receiving LCS.
Essential role of momentum-forbidden dark excitons in the energy transfer responses of monolayer transition-metal dichalcogenides
Authors: Lin Jhen-Dong , Lo Ping-Yuan , Peng Guan-Hao , Li Wei-Hua , Huang Shiang-Yu , Chen Guang-Yin , Cheng Shun-Jen
Published: July 2023

We present a theoretical investigation of exciton-mediated Förster resonant energy transfers (FRET’s) from photoexcited quantum dots (QD’s) to transition-metal dichalcogenide monolayers (TMD-ML’s), implemented by the quantum theory of FRET on the base of first-principles-calculated exciton fine structures. With the enhanced electron-hole Coulomb interactions, atomically thin TMD-MLs are shown to serve as an exceptional platform for FRET that are mediated purely by excitons and take full advantage of the superior excitonic properties. Remarkably, the energy-transfer responses of atomically thin TMD-ML’s are shown to be dictated by the momentum-forbidden dark excitons rather than the commonly recognized bright ones. Specifically, the longitudinal dark exciton states following the exchange-driven light-like linear band dispersion play a key role in grading up the efficiency and robustness of FRET of TMD-ML against the inhomogeneity of QD-donor ensembles. With the essential involvement of dark excitons, the FRET responses of TMD-ML’s no longer follow the distance power law as classically predicted and, notably, cannot manifest the dimensionality of the donor-acceptor system.
The impact of transition to a digital hospital on medication errors (TIME study)
Authors: Engstrom Teyl , McCourt Elizabeth , Canning Martin , Dekker Katharine , Voussoughi Panteha , Bennett Oliver , North Angela , Pole Jason D. , Donovan Peter J. , Sullivan Clair
Published: July 2023

Digital transformation in healthcare improves the safety of health systems. Within our health service, a new digital hospital has been established and two wards from a neighbouring paper-based hospital transitioned into the new digital hospital. This created an opportunity to evaluate the impact of complete digital transformation on medication safety. Here we discuss the impact of transition from a paper-based to digital hospital on voluntarily reported medication incidents and prescribing errors. This study utilises an interrupted time-series design and takes place across two wards as they transition from a paper to a digital hospital. Two data sources are used to assess impacts on medication incidents and prescribing errors: (1) voluntarily reported medication incidents and 2) a chart audit of medications prescribed on the study wards. The chart audit collects data on procedural, dosing and therapeutic prescribing errors. There are 588 errors extracted from incident reporting software during the study period. The average monthly number of errors reduces from 12.5 pre- to 7.5 post-transition (p < 0.001). In the chart audit, 5072 medication orders are reviewed pre-transition and 3699 reviewed post-transition. The rates of orders with one or more error reduces significantly after transition (52.8% pre- vs. 15.7% post-,p < 0.001). There are significant reductions in procedural (32.1% pre- vs. 1.3% post-,p < 0.001), and dosing errors (32.3% pre- vs. 14% post-,p < 0.001), but not therapeutic errors (0.6% pre- vs. 0.7% post-,p = 0.478). Transition to a digital hospital is associated with reductions in voluntarily reported medication incidents and prescribing errors.
Urbanity: automated modelling and analysis of multidimensional networks in cities
Authors: Yap Winston , Stouffs Rudi , Biljecki Filip
Published: July 2023

Urban networks play a vital role in connecting multiple urban components and developing our understanding of cities and urban systems. Despite the significant progress we have made in understanding how city networks are connected and spread out, we still have a lot to learn about the meaning and context of these networks. The increasing availability of open data offers opportunities to supplement urban networks with specific location information and create more expressive urban machine-learning models. In this work, we introduce Urbanity, a network-based Python package to automate the construction of feature-rich urban networks anywhere and at any geographical scale. We discuss data sources, the features of our software, and a set of data representing the networks of five major cities around the world. We also test the usefulness of added context in our networks by classifying different types of connections within a single network. Our findings extend accumulated knowledge about how spaces and flows within city networks work, and affirm the importance of contextual features for analyzing city networks.
Development of a novel sialic acid-conjugated camptothecin prodrug for enhanced cancer chemotherapy
Authors: Dong Huiling , Huang Xuefei , Wu Xuanjun
Published: July 2023

A novel CPT prodrug (CPT-ss-Sia) has been developed by the conjugation of 9-thiol-sialic acid (9-SH-Sia) with camptothecin (CPT). Intravenous administration of CPT-ss-Sia significantly inhibited the growth of multiple types of tumors.
A novel catalyst derived from Co-ZIFs to grow N-doped carbon nanotubes for all-solid-state supercapacitors with high performance
Authors: Qi Yunlong , Lv Tian , Chen Zilin , Duan Yu , Li Xiao , Tang Weiyang , Sun Quanhu , Zhai Dongmei , Chen Tao
Published: July 2023

Using a simple and low-cost solution approach, the catalyst derived from Co-ZIFs was fabricated inner porous carbon foam pyrolyzed by melamine foam for the growth of CNTs. The assembled supercapacitor can exhibit high electrochemical performance.
Strain-dependent magnetic ordering switching in 2D AFM ternary V-based chalcogenide monolayers
Authors: Pang Kaijuan , Xu Xiaodong , Wei Yadong , Ying Tao , Gao Bo , Li Weiqi , Jiang Yongyuan
Published: July 2023

The lack of macroscopic magnetic moments makes antiferromagnetic materials promising candidates for high-speed spintronic devices.
Anisotropy and thermal properties in GeTe semiconductor by Raman analysis
Authors: Yang Shuai , Sui Fengrui , Liu Yucheng , Qi Ruijuan , Feng Xiaoyu , Dong Shangwei , Yang Pingxiong , Yue Fangyu
Published: July 2023

Low-symmetric GeTe semiconductor has excellent optical and thermal properties, but few studies are available on their in-plane optical anisotropic nature that is crucial for their applications in optoelectronic and thermoelectric devices.
Oxygen vacancies confined in hierarchically porous CsPbBr3@Pb-MOF through in situ structural transformation for promoting photocatalytic CO2 reduction
Authors: Hou Yangwen , Dong Man , He Jingting , Sun Jing , Sun Chunyi , Li Xiao , Wang Xinlong , Su Zhongmin
Published: July 2023

Via in situ structural transformation, hydrophobic hierarchically porous CsPbBr3@Pb-MOF with oxygen vacancies is prepared for efficient photoreduction of CO2 in the gas–solid mode.
Investigation of the activation mode of vinylarene in Giri's Ni-catalyzed vinylarene intermolecular 1,2-alkylarylation cross-coupling: a theoretical study
Authors: Liu Song , Zhang Dianmin , Zhang Xiaoqing , Cheng Yuyan , Deng Hong
Published: July 2023

Computational evidence that supports a migratory insertion activation mode of alkenes in the Ni-catalyzed vinylarene 1,2-alkylarylation cross-coupling is presented. However, the activation mode of vinylarene was radical addition, when bipyridyl was used as a ligand.
Boron Lewis acid-catalyzed formal insertion of isocyanides into a C–O bond of benzyl esters
Authors: Xu Tong-Tong , Xiao Yuanjiu , Zhou Jin-Lan , Tang Lei , Wu Feng , Sheng Jiang-Yi-Hui , Wu Wen-Biao , Feng Jian-Jun
Published: July 2023

A boron Lewis acid catalyzed cascade process consisting of a rare isocyanide insertion with benzyl esters and the Mumm rearrangement to afford valuable imides with 100% atom utilization.
Effect of glucose pretreatment on Cu–ZnO–Al2O3 catalyzed CO2 hydrogenation to methanol
Authors: Jiang Xiuyun , Yang Wenbing , Song Hao , Ke Jucang , Li Peng , Li Rui , Ma Qingxiang , Sun Jian , Zhao Tian-Sheng , Tsubaki Noritatsu
Published: July 2023

The Cu–ZnO–Al2O3 catalyst was prepared by glucose pretreatment to improve its physicochemical properties for CO2 hydrogenation to synthesize methanol.
Thieno[3,4-d]pyrimidin-4(3H)-thione: an effective, oxygenation independent, heavy-atom-free photosensitizer for cancer cells
Authors: Ortiz-Rodríguez Luis A. , Fang Ye-Guang , Niogret Germain , Hadidi Kaivin , Hoehn Sean J. , Folkwein Heather J. , Jockusch Steffen , Tor Yitzhak , Cui Ganglong , Levi Liraz , Crespo-Hernández Carlos E.
Published: July 2023

It is demonstrated that thieno[3,4-d]pyrimidin-4(3H)-thione is an effective, oxygenation independent, heavy-atom-free photosensitizer against mono-layer of melanoma and cervical cancer cells.
AgBiS2 quantum dot based multilevel resistive switching for low power electronics
Authors: Sharma Harshit , Saini Nitish , Kumar Ajeet , Srivastava Ritu
Published: July 2023

AgBiS2 quantum dots-based low-powered and bipolar resistive switching device with filamentary mechanism exhibits controlled multi-quantum conductance levels making it suitable for ultra-high dense memory application.
Photo- and electro-controllable 2D diffraction gratings prepared using electrohydrodynamic instability in a nematic polymerizable mixture
Authors: Bobrovsky Alexey , Shibaev Valery , Ostrovskii Boris , Cigl Martin , Hamplová Věra , Bubnov Alexej
Published: July 2023

2D diffraction gratings were prepared by polymerization-induced fixation of electrohydrodynamic convection patterns in a nematic mixture. Photo- and electro-optical tuning of their diffraction efficiency was demonstrated.
MDGN: Circuit design of memristor‐based denoising autoencoder and gated recurrent unit network for lithium‐ion battery state of charge estimation
Authors: Wang Jiayang , Zhang Xinghao , Han Yifeng , Lai Chun Sing , Dong Zhekang , Ma Guojin , Gao Mingyu
Published: July 2023

Due to the highly complex and non‐linear physical dynamics of lithium‐ion batteries, it is unfeasible to measure the state of charge (SOC) directly. Designing systems capable of accurate SOC estimation has become a key technology for battery management systems (BMS). Existing mainstream SOC estimation approaches still suffer from the limitations of low efficiency and high‐power consumption, owing to the great number of samples required for training. To address these gaps, this paper proposes a memristor‐based denoising autoencoder and gated recurrent unit network (MDGN) for fast and accurate SOC estimation of lithium‐ion batteries. Specifically, the DAE circuit module is designed to extract useful feature representation with strong generalization and noise immunity. Then, the gated recurrent unit (GRU) circuit module is designed to learn the long‐term dependencies between high‐dimensional input and output data. The overall performance is evaluated by root mean square error (RMSE) and mean absolute error (MAE) at 0, 25, and 45°C, respectively. Compared with the current state‐of‐the‐art methods, the entire scheme shows its superior performance in accuracy, robustness, and operation cost (referring to time cost).
Dynamics of development of urban housing stock and urban population
Authors: Niiazalieva K.N. , Kydykbaeva A.K. , Nazarbekova E.U. , Assylbayev A.B. , Yessimova Sh.A.
Published: July 2023

The development of urban housing policies needs to be correlated with the demographic development of the city. Demographic dynamics in the world, including Kyrgyzstan, is developing towards the urbanization of the population and the increase in agglomerations. Therefore, in this article, we study the degree of interdependence of urban population growth factors with the dynamics of the housing stock and the volume of commissioning of a new urban dwelling. In particular, the two largest cities of the Kyrgyz Republic were studied – the capital Bishkek and the southern city of Osh, in which more than 60% of the urban population concentrated. On the basis of the analysis, the aim is to establish a unified public housing and demographic policy for cities based on the mutual development of the urban population and urban housing stock. We have considered the historical development of these factors as well with subsequent justification of their prospective or prognostic development in the light of one housing and demographic policy for the strategic urban development plan. On the demographic side, we took indicators of the total permanent urban population and the dynamics of population growth in Bishkek and Osh; on the housing side, we took indicators of commissioning new urban housing, urban housing stock and the availability of housing per person in the city.
Real estate prices in Hanoi pedestrian streets
Authors: Thi Ngoc Pham Lien
Published: July 2023

Nowadays, the pedestrian streets in Hanoi have been invested and expanded by the city government, not only a place to organize commercial services, shopping, tourism, food, entertainment, recreation but also an important factor contributing to improving living conditions and promoting local economic development. Through the method of surveying, map, and experts, it shows remarkable achievements of the pedestrian streets in Hanoi. The huge economic benefits and the potential to increase the outstanding real estate value that the pedestrian streets bring many small and medium enterprises, especially family businesses to find a suitable way to develop business models. The pedestrian streets’ success is proven by the rise of real estate in the area. The pedestrian streets have really become a level to help increase the value of real estate in Hanoi. This article will clarify the value of real estate when forming pedestrian streets in Hanoi, especially in the historic inner city. From there, make recommendations on the organization of architectural space and landscape of the pedestrian streets to enhance the value of real estate in the future.
Housing development policies toward sustainability in Japan and Vietnam
Authors: Ha Tran Vinh , Thuat Pham Trong , Van Ha Thi Khanh , Arimura Mikiharu
Published: July 2023

Achieving sustainable development goals requires adequate housing provision, one of the most crucial tasks for consolidating economic and social capacity. This study aimed to review the housing development process and policies in Japan and Vietnam, which are representatives for establishing a sustainable housing market in developed and developing economies. We first presented the situation of the Japanese housing market from the post-World War II period to the present, including three periods of economic development, recovery, development, and stabilization. We then reviewed implemented policies that greatly affected the changes in housing stock from shortage to fulfillment. Similarly, we summarized the main characteristics of the Vietnamese housing market and policies since the economic perspective changed. The experiences in both countries indicate that economic reform and the private sector play a substantial role in accomplishing the housing market balance. Notably, the study also pointed out a potential and existing crisis, including housing vacancy and affordability. We propose that understanding the current situation would help policymakers to consolidate the housing provision and mitigate the crisis effects. On the other hand, lessons learned from these two cases might be helpful for other countries to emulate.
The role of flexible and adaptable housing as part of the circular economy
Authors: Le Phuong Thi-Lan , Nguyen Hoang Quoc
Published: July 2023

Nowadays, the economy is based on the linear method in which people harvest, consume, and dispose of materials and buildings, affecting the environment negatively. Circular economy (CE) in cities aims to maintain and value as well as optimize the use of city assets and products through circular actions: sharing, recycling, refurbishing, re-using, replacing, and digitizing. CE will address the linear system inadequacies and move towards a sustainable society. Mainly, housing is considered a driver of economic, social, and civic development. It is also considered as one of the biggest sectors adding to these adverse effects by growing energy and water consumption, sewage burdens, and flooding. Therefore, the housing study toward CE's aims is the top priority for the circular economy transition. Most of the current CE research focuses on design for the disassembly and recycling of material. Instead, this study aims to further the investigation of flexibility and adaptability in housing as part of CE. By using quanlitative mothods (Literature Review, Theoretical Analysis, Secondary Data Analysis), this paper proposes the state-of-art housing design approaches that meet the requirements for the capacity of housing can adapt to different residents’ and societal needs over time to ensure that the building and its materials remain in circulation for as long as possible. The results contribute to real estate development in the formation of environmentally sustainable cities, as well as toward Circle Economy in the context that the yearly supply of homes continues to increase due to urbanization.
Recovering Sustainable Settlements for People Affected by Disaster: An Inclusive-Participatory Approach
Authors: Nguyen Thi Thanh Mai , Furniss Wilderspin Ian
Published: July 2023

Typhoon Damrey struck Vietnam in November 2017 and was the strongest storm to hit the country in over 15 years. It impacted 13 central coastal provinces. Many domestic and international organisations provided timely support to affected populations. These projects were successful in recovering settlements and rebuilding houses for affected people through the application of a participatory-inclusive approach. This paper evaluates the restoration of settlements and rebuilding of homes in international projects using a participatory approach. The Active Learning Network for Accountability and Performance guide to the Development Assistance Committee criteria in Evaluations of Humanitarian Action was used to assess the relevance, effectiveness, efficiency, impact, sustainability and replicability. Data collection included desk-based research and semi-structured interviews with stakeholders from central to local authorities and beneficiary communities. The results showed that a transformation towards a participatory bottom-up approach is crucial for effective recovery and rebuilding efforts.
Building identities in public spaces through cultural language analysis framework: a case study of public spaces river the Ha Thanh river Quy Nhon city - Central – Viet Nam
Authors: Quang Pham Viet , Dung Pham Anh , Anh Hoang , Tuyet Cu Thi Anh
Published: July 2023

When it comes to the typical image of an urban area, public space is considered a place that many people refer to because it is a place where cultural, social and entertainment activities often take place in daily life. Along with the trend of global integration and urbanization, the current Vietnamese urban architecture, especially the traditional urban spaces, is being gradually lost because of the influences of new architecture imported from the other countries. In terms of management, the choice of development and preservation of identity is always a difficult problem when taking into account the economic and social development of the city. It is necessary to include the goal of harmonious development of urban identity in the planning and design process. Through synthesizing and surveying local cultural values that have been evaluated and analyzed to distill some outstanding tangible and intangible values, and at the same time recreate urban public spaces in order to regenerate landscape at Ha Thanh river, in Dieu Tri area - Quy Nhon city - Central region - Vietnam.
Reuse of wastewater in construction projects
Authors: Van Hien Nguyen
Published: July 2023

Wastewater generated in construction projects such as hotels, resorts, high-rise apartments, mixed-use commercial centers, etc. accounts for a significant amount, including domestic wastewater and rainwater. The reuse of wastewater for domestic use, irrigation, fire fighting, and cooling purposes is being encouraged and applied to save the amount of freshwater used, reduce production costs, lower management and operating expenses of construction works, protect the environment, and save energy and chemicals. In this article, the author introduces solutions for reusing domestic wastewater and rainwater from construction projects, meeting the trend of developing green, eco-friendly, and energy-renewable constructions for both present and future.
Complex contracts in industrial construction–instrument for sustainable territorial development
Authors: Shcherbakov Vitaly , Beliakov Sergei
Published: July 2023

The main volume of generation in the Russian electric power industry is provided by thermal power plants, causing the most extensive damage to the environment. The growing problems in ensuring environmental safety and the urgent need to reduce the harm to nature and public health must be addressed within the framework of the construction of new and reconstruction of existing facilities in the implementation of state programs to ensure sustainable development of territories. Organizational and managerial aspects of the application and improvement of mechanisms for the implementation of eco-innovations in the framework of industrial construction should be considered in the context of organizational and contractual modeling of the interaction of milestones of participants in investment and construction activities. The use of costly evaluation methods to confirm the results of the development and implementation of eco-innovations is a promising direction in using of complex contracts and their evaluation in the industrial construction of electric power facilities, taking into account their innovative nature.
Ecology and resource efficiency: reflections of MGSU students
Authors: Metelkova Lilia , Ivanova Zinaida , Danielian Mary
Published: July 2023

The article examines the definitions of the concept “ecology” and its use in modern scientific thought and practical experience. The article examines the definitions of the concept “ecology” and its use in modern scientific thought and practical experience. The aim of the study is to investigate what meaning is put in this notion by the first-year students of MSCU who have not studied special environmental disciplines related to construction and architecture. During the study one control and two experimental groups were formed. The students were asked to answer questions about what the concepts of “ecology”, “ecological”, “ecological” mean. The control group answered without leading questions. The first experimental group was given prompts, while the second group was given a series of explanations to choose from. The results of the study show that the vast majority of students assigned the same meaning to all three concepts: state and safety of the environment and rational use of resources. Not a single student went beyond an understanding of the term “ecology” in connection with the environment, although the concepts “ecology” and “ecological systems” went beyond their original meaning and were used in many fields of science and practice. Conclusions. MSCU students have a high level of knowledge in the field of ecology in its biological sense. At the same time, there is a lack of awareness about the range of usage of the concept “ecology” and “ecological systems” in the modern world, which is explained by the rather narrow approach to environmental education at school.
Impact of the external environment on the development of enterprises in the investment and construction complex in the housing market
Authors: Khrustalev Boris Borisovich , Chudaykina Tatyana Nikolaevna
Published: July 2023

The article discusses the main aspects of the influence of the external environment on the development of enterprises in the investment and construction complex. Currently, enterprises are forced to increase their efficiency, taking into account the development of investment processes aimed at eliminating imbalances in the real estate market. Three groups of features are presented that determine the nature of the activities of ISC enterprises: territorial, sectoral and socio-economic.

Taking into account all these features will make it possible to establish the degree of compliance of the internal environment of enterprises with the external conditions of their activities and to link the interests of all participants in the housing market in a rational combination of them with each other. These features determine the nature of the emergence of various groups of factors of the external and internal environment. The solution of this problem should be carried out through the development of new theoretical and methodological approaches to solving the problem.
Designing a System of Training and Methodology Support for Training Construction Industry Specialists in the Conditions of Digital Economy
Authors: Korotun Olga
Published: July 2023

The paper presents a concept for designing an information system that provides organisation and support of the educational process. The core of the concept is the individual approach to the formation of students’ educational trajectory. The individual approach is formed automatically on the basis of previous learning results and supposes complexity of the syllabus-grounded educational material, including as well a list of references depending on the factual level of assimilation of the instructional material. The information system concept involves storage and demonstration of course materials as well as third-party data from electronic databases of scientific, reference or educational sources. The system is able to predict the results of current, interim and final assessment in an automated fashion, depending on current results, in order to create additional recommendations for mastering the material and potential grade improvement. The designed system is capable of generating reports on learning outcomes in an automated mode. Such information system is a tool for the realisation of a hybrid form of education.
Green Architecture - Solution for Sustainable Urban Developments in Viet Nam
Authors: Giai Nguyen Quang
Published: July 2023

The future of the world has been shaped by urban cities while the sustainable urban life is a raising global goal. In recent years, Vietnam has achieved certain achievements in its urban growth and development strategies. However, due to the consequences of rapid and uncontrolled urban growths, concurrently this nation has faced with a heavy challenging pressure and visible barriers to the ability to housing’s supply and construction, environmental pollutions, greenhouse effects, climate change … So that, urban development in a smart and sustainable way has being called on efforts to find a solution for these difficult and polemic problems in Vietnam recently. As a persistent effort, the model of green architecture, the green buildings play an important role to strengthen strategies and solutions for sustainable urban development. This study was based on an urban ecology approach; get along with the exploitation of secondary data sources, as well as observations of the authors from development practices in some major cities in Vietnam.
Increasing the Biostability of Concrete by the Introduction Of Additives
Authors: Rumyantseva Varvara , Konovalova Viktoriya , Narmaniya Boris , Korinchuk Mikhail
Published: July 2023

To increase the resistance to fungal corrosion and improve the performance of concrete cement stone, it is proposed to introduce calcium stearate and active metal nitrates in an amount of 0.5% by weight of cement into the cement mixture at the manufacturing stage. To determine the degree of corrosion damage of cement stone by fungal microorganisms Aspergillus niger, porosity, density, water absorption and strength were determined. It has been found that the introduction of a hydrophobic additive of calcium stearate into the cement mixture during the manufacture of concrete reduces water absorption, reduces porosity and increases strength. Additives of nitrates of active metals do not affect the characteristics of the cement stone of concrete. As a result of 6 months of fungal corrosion, the water absorption, porosity and density of cement stone containing calcium stearate did not change, and the strength decreased by 4%. Metal nitrates do not prevent damage to the cement stone by microorganisms, but slow down the flow of aggressive substances to the surface of the reinforcement in concrete. The combined introduction of calcium stearate and nitrates into the cement mixture will improve the characteristics of concrete, increase its corrosion resistance and ensure the safety of reinforcement in concrete.
Influence of bed ash on the rheology and properties of gypsum building mixtures
Authors: Sweity Yousri , Petropavlovskaya Victoria , Novichenkova Tatiana , Petropavlovskii Kirill
Published: July 2023

In the article, the influence of the aluminosilicate part of fuel bottom ash and slag mixtures on the water demand of gypsum raw materials of dry building mixtures is considered. It is shown that the aluminosilicate filler has a plasticizing effect. This is due to the presence of microspheres in the composition of the filler. They reduce the amount of water needed to achieve normal gypsum paste consistency. This is reflected in other physical, mechanical and structural characteristics of gypsum. The ash filler in the optimal ratio with the gypsum binder compacts the structure of the stone. does not participate in chemical transformations. To increase the efficiency of the ash filler, it is necessary to introduce additional components that activate the processes of structure formation in ash-gypsum binders.
The use of technogenic carbon in gypsum compositions for green building
Authors: Petropavlovskii Kirill , Ratkevich Ekaterina , Novichenkova Tat’yana , Petropavlovskaya Viktoriya
Published: July 2023

The publication is devoted to the study of the possibility of using ash and slag waste from hydraulic removal of fuel power plants in the production of building gypsum materials. These wastes are not used in industrial production due to the heterogeneity of composition and properties. This is a big and unresolved problem for many thermal power plants. However, when separating individual parts - carbon, aluminosilicate or magnetite - the possibility of using the selected part of the component increases. The paper considers the use of carbon and aluminosilicate parts as an additive in the composition of gypsum compositions. A comparative analysis of the properties of gypsum compositions modified with carbon and aluminosilicate additives is given. A higher efficiency of using a carbon additive for lightweight gypsum compositions has been established. The comparison was carried out in terms of compressive strength and average density. Additives were introduced in the amount of up to 30%. The ratio of tensile strength and density for modified mixtures was characterized by specific strength. It was higher for mixtures with a carbon additive. The introduction of porous mineral fillers - perlite and vermiculite - in a volume of up to 20% contributed to an even greater decrease in density. The best result was shown by mixtures with the carbon component of ash and slag mixtures and the addition of perlite. They can be used for green building.
Advantages and Challenges of Applying BIM in Urban Technical Infrastructure Projects
Authors: Ngoc Nguyen Minh , Son Tran Thanh , Vu Mai
Published: July 2023

In the current development in Vietnam, more and more new urban areas are planned to serve and develop socioeconomic development. However, the establishment of an overall system of planning, construction, management, and development for urban development is still facing many difficulties. Especially the use of “2D drawings” in urban design, management, and operation, which will cause limitations in optimal urban planning. The application of Building Information Model (BIM) technology in urban planning, management, and operation is the current integration trend that is in line with the national digital transformation plan in the 4.0 revolution. Hence, the application of BIM also faces certain challenges and difficulties. This study analyzes the basis and legal framework for applying BIM while considering the technical infrastructure projects using BIM, thereby assessing the advantages, disadvantages, challenges, and solutions, and assessing the suitability for the application of BIM in infrastructure projects in Vietnam.
Parametric study of design parameters and thermal comfort in primary schools in Ho Chi Minh City, Vietnam
Authors: Le Thi Ho Vi , Gillott Mark , Rodrigues Lucelia
Published: July 2023

Overheating of premises is a typical thermal discomfort issue in naturally ventilated primary schools in Ho Chi Minh City, Vietnam. Several design parameters were shown to affect the indoor thermal environment. A parametric study was conducted and based on several building performance simulations to investigate the influences of the individual design parameters on indoor air temperatures and the prevalence of overheating in primary schools. The sensitivity analysis indicated that the material of building envelopes, the openings, and the solar controls, in descending order, affected overheating occurrence. The findings could assist the architect in choosing which parameters should be prioritised in the design stage, which is particularly useful in renovation and retrofit projects.
Reproduction of city blocks while creating a comfortable urban environment
Authors: Chubarkina Irina Y. , Budanov Igor
Published: July 2023

Urban planning and the creation of a comfortable green environment are two integral components of sustainable urban development. Modern cities face many challenges related to pollution, limited resources and lack of space. However, the creation of a green environment and sustainable urban development can help solve these problems. In addition, sustainable urban planning aims to create compact and convenient urban environments. This approach allows reducing traffic flows, using less energy and resources for the construction and operation of urban infrastructure facilities. One example of such urban planning is urban blocks. Urban blocks is an urban planning concept that involves the creation of compact and multifunctional city blocks that combine residential, office, retail and other types of real estate. This concept is designed to improve the quality of life of citizens, create a more sustainable urban environment and reduce traffic flows. Thus, urban blocks and green urban planning have much in common and complement each other. In this article, we will consider the issues of reproduction of urban blocks in construction, their differences from other forms of urban development, as well as what benefits they provide for residents and urban infrastructure in general.
Deriving of Intensity–Duration–Frequency (IDF) curves for precipitation at Hanoi, Vietnam
Authors: Thanh Son Tran , Xuan Anh Ha
Published: July 2023

The rainfall Intensity-Duration-Frequency (IDF) relationship is one of the most commonly used tools in establishing rain intensity formulas for urban stormwater drainage design. Currently, the rain formulas being applied in Vietnam according to the design standard TCVN 7957-2008 are mostly Soviet formulas with climate parameters dating back to the 80s of the twentieth century. Therefore, it is no longer suitable for the calculation of the current stormwater drainage system, especially in the context of climate change. In this paper, we used statistical methods to process rain gauge data from 1960 to 2021 to build the IDF curve for the inner city of Hanoi (Vietnam). The results show that the new IDF curves are more suitable for the current climate situation than the IDF curves according to TCVN 7957-2008.
Connectivity of metro station location with urban space – a study of Hanoi metro line N°2.3
Authors: Giang Vu Thi Thuy , Van Che Le , Vinh Than Dinh , Huyen Nguyen Thanh , Nga Dang Thi , Hung Nguyen Manh
Published: July 2023

The shift toward public transport has become essential for sustainable urban development; enhancing the convenience and comfort of users. As a modern urban public transportation, the metro/urban rail rapid system has many advantages such as mass transit with large capacity, fast speed, green and energy saving. Improving the connection of metro stations is the key to attracting passengers to achieve sustainable development. To meet the demand for the strategy to evolve in line with its socio-economic development, Hanoi has promoted the urban rail transit system, and the comprehensive development of stations will change urban citizens' travel lifestyles. This paper presents connectivity space around the metro station location in metro lines in Hanoi – a study of Metro line 2.3
Logistic support to ensure the investment attractiveness of the regions of the Russian Federation
Authors: Muromets Natalia E. , Paleev Alexander V. , Charaeva Marina V.
Published: July 2023

Modern socioeconomic challenges are shaping new approaches to finding effective ways to develop Russian Federation regions, with the goal of forming logistics infrastructure through the large-scale implementation of digital technologies in management, subject to effective labor resource management. The purpose of the study is to improve the process of ensuring the regions' investment attractiveness using a logistical approach to the management of the regions' infrastructural and social resources. The prerequisites for the development of an integrative approach to managing the movement of human resources in the labor market were established based on the analysis of existing conceptual approaches to the problem of managing the movement of human resources using the method of systematization. This study concludes that the level of investment attractiveness of the regions is largely predetermined by the pace of development and implementation digital technologies and related logistics products and services, as well as the level of efficiency of management of external and internal labor flows in regional labor markets. The development of an integral approach to managing the movement of human resources, based on strategic management principles, and considering the interaction of labor, material, financial, and other logistical flows, enabled the essence of the concept of "labor flow" in relation to the category of "movement of human resources in the labor market" to be substantiated.
Logistic factors as a mechanism for the development of the transport and logistics sector in Astrakhan region
Authors: Kryukova Ekaterina , Mineva Oksana
Published: July 2023

The Astrakhan region is a significant geopolitical and geocultural zone. It is a major transport and transit hub. A special economic zone (SEZ) is known as a territory the state has granted a special legal status and economic benefits to. However, the lack of efficient logistics makes the efforts of zone residents futile. It is necessary to strategically manage supply chains with access to international organizational interaction, both for individual participants and for the SEZ as a whole. The criteria that determine the effectiveness of LPI logistics both at the level of countries and at the level of individual territories (SEZ) are discussed. A comparative assessment was carried out and the current situation was modeled in terms of the effectiveness of logistics management in the Caspian states. An analysis of the dynamics of six logistics performance indicators for the Caspian countries was carried out. A way of optimizing the development of the SEZ is proposed. The hypothesis about the possibility of using the LPI modeling system to assess the prospects for the development of the territory is confirmed.
Improving the supply chain management of China’s rail logistics system
Authors: Xyugan Wang , Lysochenko Alla
Published: July 2023

The main purpose of the study is to propose possible ways of improving the supply chain management of China’s railway logistics system as part of the ongoing “One Belt One Road” initiative. Based on a multi-aspect analysis of scientific sources, the impact of the “One Belt One Road” initiative on the railway logistics system of China is justified. The author’s forecast results of rail freight transportation for the period 2022-2030 are given. It was revealed that the digital transformation of supply chain management is the main tool for improving the efficiency of China’s railway logistics system. Within the framework of scientific novelty, a range of basic elements of digital transformation and digital solutions are indicated that can be included in each of the areas of railway transport management. The prospects for the development of supply chain management of China’s railway logistics system in the view of “One Belt, One Road” initiative are identified and the corresponding innovative digital tools in the field of logistics are justified. It is concluded that the use of the latest digital technologies by rail carriers contributes to high performance and maintaining a competitive position in the logistics market, which is an integral part of the transition to sustainable rail freight transport.
Quantitative methods for executive public managers
Authors: Kamolov Sergey , Tarazevich Mariia
Published: July 2023

Digitalization is becoming a priority in the development of the public governance system, and the question arises about the effectiveness and efficiency of management with the introduction of quantitative methods. This article presents a meta-analysis of relevant studies of quantitative methods that are used in the global practice of public administration. The purpose of the study: to determine a set of quantitative methods that will be necessary and sufficient in the decision-making arsenal of a public executive. A selection of two dozen articles was obtained during systematized research and grouped according to the criteria of compliance with a certain quantitative method and compared with the general potential of quantitative methods in relation to public administration. As a result, a classification of quantitative methods is proposed divided into three global classes of mathematical tools, namely, empirical, logical, and special methods. Methods from the classification are correlated with their potential areas of application in public administration. The authors concluded that it is necessary to increase the research, differentiate effective quantitative methods and introduce the necessary special training of managers for the rational application of quantitative methods in the public sphere.
Features of ESG rating of Russian companies
Authors: Finogenova Yulia Y.
Published: July 2023

The article is devoted to the comparative assessment of the existing ESG rating methodologies, which are developed by the largest statistical agencies, which are specializing on the ESG rating calculation. The purpose of the study is to highlight the main strengths and weaknesses of the existing methodologies in order to take it into consideration during the development of the Russian national ESG scores’ assessment methodology.