bluuebunny/crossref_metadata_2025_split huggingface dataset:
Conservation & Promotion “Dinh” in Hanoi Old Quarter
Authors: Thi Kim Dung Ngo 
Published: July 2020

Abstract
Hanoi Old Quarter is an area of urban heritage with very important role and value. Currently, this heritage is facing many challenges, at risk of being invaded and destroyed by time, environment, natural disasters, and human impact as well as the pressure from urbanization. Central and local government tries to conserve this valuable heritage; however, the result hasn’t met the expectation. This article presents an overview of the number, characteristics and role of Dinh (Vietnamese communal house) in Hanoi Old Quarter, discusses the need for conservation and proposes solution to conserve and promote the role of Dinh using smart city application.
Some solutions of “Smart city” in response to urban climate change
Authors: Bich Ngoc Nguyen Thi , Linh Do Thuy 
Published: July 2020

Abstract
Responding to climate change is a great issue related to processes that help balance the natural environment [1]. In addition to changing people’s awareness, the use of “environmentally friendly” technologies will also help bring about greater efficiency in response to climate change [7]. In order to address climate change adaptation objectives with “Smart City”, scientific research is needed to provide rational solutions to each city [14]. Of these, it will include “smart” solutions associated with modern technologies (NewYork, United States) [18] and also “smart” solutions without technologies (“Amip city” in Japan) [5][19]. Within the scope of the article, we are also mention some typical criteria and solutions and notes when choosing solutions for cities in Vietnam.
Smart urban governance in smart city
Authors: Quoc Toan Nguyen , Thi Nhu Dao 
Published: July 2020

Abstract
Nowadays, smart city has received a great attention of many countries around the world as a holistic strategy and potential trend for effective urban development that could help to solve a wide range of current urban issues such as population growth, productive land-use, overloaded infrastructure, traffic congestion, social division, etc. While the application of information and communication technology (ICT) was commonly mentioned as hardware aspect integrated in urban infrastructure system of a smart city, particularly around the early 1990s when the ICTs first reached a broad public attention in European countries, in recent years countries supporting a comprehensive approach frequently have considered and complemented the concept of smart city with a software interpretation related to smart vision, smart governance and smart community in order to obtain high quality of life and improve environmental quality. The article discusses smart urban governance - a vital pillar of smart city that addresses urban issues and dynamic collaborations between urban actors towards “smarter” urban growth in the 4.0 era.
Structural optimization of Long Ethernet lines for use in automation systems of smart city and smart home
Authors: Semenov Andrey 
Published: July 2020

Abstract
The possibility of structural optimization of the telecommunications part of the telecommunication lines of the Long Ethernet network interfaces for servicing sensors and actuating elements of automation systems of a smart city and a smart home has been considered. A model of the analyzed structure has been introduced. Given the long distances and relatively low data exchange rates, the model involves the use of standard remote power supply equipment and multiplexing of signals from sensors and actuators. The method of estimating the lengths of separate segments of a mixed path is offered, and expediency of increase in length of a path for transmission of the multiplexed signals is shown.
Efficiency of Abaqus2Matlab toolbox for structural optimization problems
Authors: Pham V T , Vu Q V , Papazafeiropoulos G , Ngo V T 
Published: July 2020

Abstract
In recent years, optimal structural design is one of the most interesting fields in the engineering science. With the development of the computational tools, many optimization methods have been proposed. This paper introduces an efficient toolbox namely Abaqus2Matlab which can be used for any structural optimization problem. This computational tool allows for automatic linking between Abaqus and Matlab, in terms of transferring data from Abaqus to Matlab and vice versa, and creating the necessary files for the optimization procedure. In the optimization problem, Abaqus plays the role of the solver, while Matlab plays the role of the optimizer. In order to demonstrate the efficiency of Abaqus2Matlab toolbox, an optimization procedure is employed to find the optimum sizing of the member cross sectional areas for the benchmark 10-Bar truss and 25-Bar truss problems. The results obtained from this method are validated with various studies from the literature.
Social factors of sustainability for a smart city development
Authors: Danilina Nina , Majorzadehzahiri Alireza 
Published: July 2020

Abstract
Sustainable development of smart cities is based on the consideration of many areas of urban life in which the implementation of modern innovative technologies is taking place. Urban planning is aimed on providing citizens’` life and ensuring their daily needs in comfortable and safe living. The problem is that urban environment and the population must be ready to accept the idea of a smart city in order to organize its greatest efficiency. On the other hand, smart technologies should address both global and local challenges and threats to the urban environment in the wide range from environmental problems caused by climate change to the possibility of easy orientation and service search on city streets. The article proposes an approach to strategic urban planning of the environment based on a socially-oriented smart city model that combines social factors, their reflection in urban environment and defines the set of smart technologies that are in citizens’` demand. On the example of the Monirye district in Tehran, Iran the developed method is applied using analytical methods of SWOT and VMOSA analysis. This application provides a systematic approach for smart cities planning in accordance with the needs of the population and the existing level of development of the urban environment and to determine the strategic directions of its sustainable development in the interests of the population.
Features of Smart Lighting Project Implementation in the Cities of the Russian Federation
Authors: Kolomiets Vladimir 
Published: July 2020

Abstract
The research objective was to study and summarize the experience of Smart Lighting projects in the cities of the Russian Federation. As a result of the analysis of regulatory documents, it is shown that the indicator “share of street lighting controlled by the intellectual control system” is applicable to assess smart lighting projects implementation. It is shown that the Transition to smart lighting is most often based on the local action model, while the energy service contract is a popular way to finance projects. It is recognized that projects implementing lighting control functions using wireless networks are more promising.
Practical formation of verification rules for building information models
Authors: Makisha Elena 
Published: July 2020

AbstractEvaluation of machine-readable rules based on the regulation requirements is the first step towards automated examination of design documentation. The article is devoted to practical implementation of previously evaluated algorithm of rules formation for verification of building information models based on rule modelling language. The methodological basis of the algorithm is the RuleML rule modeling language, first- and higher-order logic, and the Industry Foundation Classes (IFC) standard. The author describes testing the software implementation of the algorithm on the example of one of the regulation standards of the Russian Federation. As a result, the main groups of requirements found in the standard were identified. An example of formalization and translation of a specific statement of the standard is given, which confirms the assumption that above-mentioned algorithm is appropriate. Promising areas of research have been identified in order to solve problems related to the inability to translate certain provisions of the standard.
Evaluating the potential for application of MODIS satellite data for urban air quality monitoring in Vietnam
Authors: Hieu B T , Hiep N H , Luong N D 
Published: July 2020

Abstract
Using satellite remote sensing data in combining with other technologies (i.e. sensor, ground-based system) for surface air quality monitoring has been considered as one of promising approaches for urban air quality management in future smart cities. This study assessed the accuracy of latest collection (Collection 6.1 - C6.1) of MODerate resolution Imaging Spectroradiometer (MODIS) satellite aerosol optical depth (AOD) retrieval by Dark Target (DT) algorithm at 3 and 10 km spatial resolutions in urban areas in Vietnam. Collocated Aqua and Terra MODIS C6.1 AOD at 550 nm were inter-compared against AOD from two AERONET stations in Vietnam, estimated throughout the satellite passes (± 1 h). Two investigated AERONET stations are Nghia Do (inland urban) and Bac Lieu (coastal urban) with the studying periods of 2010 - 2016 and 2010 - 2017, respectively. Our findings showed that the MODIS DT 3km were performed worse than the MODIS DT 10 km product in urban areas. Furthermore, all two MODIS AOD DT products showed better performance at inland urban site than coastal urban site. In general, both MODIS products were able to follow the monthly-mean AERONET AODs. The peak of aerosol loading at the investigated urban sites could be properly attributed to the combination of the monsoon effect and biomass burning activities. The mean aerosol loading of rainy season appeared to be lowest in the year, which could be attributed to the fact that the frequent rain washes out the dust in the atmosphere.
Determination of the Existing Sight Distance and its Influence on the Speed on Highways
Authors: Hristov Borislav 
Published: July 2020

Abstract
The main task of a high-quality road design is to provide the driver with a clear information about the course of the road at an early stage. The good visual guidance on highways is a prerequisite for adequate driving safety. Therefore, the sight distance has a significant impact on traffic safety, performance, speed behavior and driving comfort. At least the required stopping sight distance should always be guaranteed on highways, in order to ensure traffic safety and quality of traffic flow. The purpose of the stopping sight distance is to enable the driver to stop in time in front of an unexpected obstacle with a certain height on the road or in front of the end of a traffic jam. In addition, as a regulating element in road design, it is intended to ensure early driver information and orientation. The driver reacts to external influences by choosing the speed and changing it. Therefore, the speed parameter itself represents the best and most suitable evaluation criterion for driving behavior. In this paper, it has been succeeded to prove, that the existing sight distance exerts an influence on the speed on highways in Germany. A clear increase in the 85th percentile speed was determined with an increasing existing sight distance up to 400 m. At a sight distance above 400 m V85 remained almost constant. An increase in the 15th percentile speed was only noticeable up to a sight distance of 300-350 m, after which V15 remained at the same level.
High-strength lightweight concrete with internal curing for 3D-printing in construction
Authors: Inozemtcev Aleksandr , Qui Duong Thanh 
Published: July 2020

Abstract
In the global information space there is a positive trend in the number of publications devoted to the technology of building 3D-printing. As functional additive for internal care of concrete superabsorbent polymer (SAP) can be used. It was found that the mobility of high-strength lightweight concrete mixtures with SAP is decreased in contrast to cement pastes. The decrease of the spread diameter of the concrete mixture with an increase of the SAP content to 2.3 % by weight of Portland cement is to 20 %. The SAP content of less than 1.5 % by weight of Portland cement provides the required mobility of the concrete mixture and the average density of high-strength lightweight concrete. Taking into account the requirements for the strength of the studied concrete, the optimal content of SAP is 1.0-1.5 % by weight of Portland cement. The efficiency of the use of solutions of superabsorbent polymers for reducing shrinkage deformations of the concrete in contrast to granular SAPs is proved. This is especially actual for concrete used in adverse hardening conditions of Portland cement, for example in 3D-printing in construction. It was shown that the concentration of SAP less than 1.5% by weight of Portland cement allows to ensure the mobility of the mixtures and preservation of concrete strength.
Industrial waste in concrete mixtures for construction of underground structures and minerals extraction
Authors: Kongar-Syuryun Cheynesh , Tyulyaeva Yulia , Khairutdinov Albert M , Kowalik Tomasz 
Published: July 2020

Abstract
An increase in population leads to an increase in the density of inhabitants in megacities and leads to an increase in consumed raw materials. The paper presents the description of the problems that arise for builders when building density increases and for producers of raw materials that arise when raw material is intensified. The analysis of the impact of construction and mining waste on the environment was carried out. Compositions of concrete mixes and methods of their preparation are offered to improve the quality and safety of life in megacities, as well as the safety of mining operations along with reducing the human impact on the ecosystem. Aspects of preparation of concrete mixes and questions of improvement of its quality by activation of components are revealed. The possibility of activation of construction and mining waste used as an inert aggregate in considered. The possibility of realization of non-waste production is considered.
Ceramic products and energy-efficient systems
Authors: Kodzoev Mukhamad-Basir , Isachenko Sergey , Bobrova Ekaterina , Efimov Boris , Bessonov Igor 
Published: July 2020

Abstract
The energy efficiency concept incorporates energy conservation and durability components involved in the operation of buildings and cost considerations pertaining to the manufacturing and installation of materials. Ceramic brickwork offers the highest reliability and durability category, is not combustible and in terms of these parameters has advantages over other insulated facade cladding systems. Improving the thermophysical properties of masonry made of calcined ceramic products is possible through the use of heat-efficient ceramics and, in particular, porous ceramic stones. It is notable that the use of combustible additives does not enable the uniform distribution of porosity across the material while the high ash content of some additives reduces the quality of the ceramic crock. In this connection, it was decided that the use of exfoliated vermiculite of up to 0.5 mm fraction would be reasonable. A completed experiment made it possible to establish the optimal density of exfoliated vermiculite and a methodology based on the correlation between the properties of ceramic-vermiculite products and consumption of exfoliated vermiculite and ceramic product calcination temperature.
Prediction of the modulus of elasticity of building materials based on wood-polymer composites
Authors: Matseevich Tatiana , Zhdanova Tatiana , Wang Chuang , Kondrashchenko Valeriy , Askadskii Andrey 
Published: July 2020

Abstract
The modulus of elasticity of mixtures of two polymers in glassy or crystalline states is predicted. In addition, the elastic modulus of composites containing a mixture of organic polymers and a mineral filler is predicted. The preparation of wood-polymer composites increases the elastic modulus from 2400 to 4660 MPa under tensile conditions. The introduction of a mineral filler in the form of CaCO3 leads to an increase in the E modulus to 3230 MPa with a CaCO3 content relative to the wood filler of 42%. The prediction of the elastic modulus for composites containing moso bamboo as a wood filler shows that with this content of wood filler, the modulus of elasticity can increase to 4400 MPa.
Analytical description of the hydrogen evolution from concrete under the effect of gamma radiation
Authors: Denisov Aleksandr 
Published: July 2020

Abstract
The formation of explosive gas mixtures due to the evolution of hydrogen from concrete structures for radiation protection of nuclear power buildings should be taken into account when designing and operating them. However, this requires methods for estimating and predicting the radiation evolution of hydrogen.
This paper was done due to the lack of analytical methods for determining the gas evolution from concrete and their components under the influence of gamma radiation. In the work, based on the available experimental data, the model was selected, checked, and adjusted for an analytical description of the process of hydrogen evolution from concrete on aggregates that do not contain water under the influence of gamma radiation.
When selecting the model, it was assumed that the evolution of hydrogen from concrete on aggregates that do not contain water under the effect of gamma radiation is mainly due to the radiation decomposition of evaporable water (free water and adsorbed water) from hardened cement paste (cement stone) and is determined by the amount of evaporable water in the material and the power of the absorbed dose of gamma radiation. It was taken into account that the amount of evaporable water during irradiation decreases with increasing time and temperature of irradiation.
Verification of the possibility of using the selected model, its necessary adjustment and determination of the main parameters of this model was performed on the basis of available experimental data on the evolution of hydrogen from Portland cement stone under the influence of gamma radiation. We used experimental data on the release of hydrogen and water from cement stone containing and practically not containing evaporable water when irradiated with gamma rays with an average energy of 1.25 MeV at the absorbed dose rate of 0.87 kGy/h, 3.84 kGy/h and 7.05 kGy/h at temperatures of 25, 40 and 60 °C for up to 2 months. The dependence of the model parameters on the absorbed dose rate of gamma radiation and the irradiation temperature is shown. For cement stone dried at 120 °C to remove evaporable water, the amount of residual evaporable water (residual evaporable water or decomposed chemically bound water) was studied and determined.
Filtering polymer material for wall drainage
Authors: Lyapidevskaya Olga 
Published: July 2020

Abstract
The article deals with the ensuring reliable protection of underground buildings and structures from groundwater influence. The analysis of existing methods and materials used in wall drainage systems is carried out. In order to improve the quality of construction and operation of underground structures, filtering drainage slabs made of polystyrene foam are proposed. To develop the design of slabs with longitudinal holes that increase their water permeability, the method of electro hydrodynamic analogies was used. Deformations of filtering slabs with holes with a diameter of 4 cm under the action of compressive loads exerted by backfill soil were investigated. Dependence of the compressive strength and water permeability of filtering slabs upon short-term (compressibility 10%) and long-term (compressibility 2%) loads is presented. Based on the results of the experiment, it is found that the obtained material has high filtration characteristics with sufficient strength and can be recommended for the protection of underground structures with a depth of up to 10 m.
Assessing the efficiency level of ground basalt stone and fine sand in compressive strength of portland cement
Authors: Dau Vu Dinh 
Published: July 2020

Abstract
Compressive strength of a portland cement were effected by natural mineral admixtures (PGKTN) such as basalt stone and fine sand. In general, a higher content of natural mineral admixture, a lower compressive strength of blended portland cement. Influence level depended on such as the kind and content, the fineness of natural mineral admiixture.
In this paper, study results on the efficiency level of ground basalt stone and fine sand on the compressive strength in mortar PCB was introduced. Investigation results show that the higher content of ground basalt stone and fine sand in blended portland cements, the lower compressive stregth were investigated. Efficiency level of natural mineral admixture in the compressve strength of blended portland cement is different for mortar and paste cement. Study data show efficiency levels of the chemical and physical effect by the active and inert components in these admixtures on compressve strength of blended portland cement. It confirmed that the efficiency level of these natural mineral admixtures in the compressve strength ís increased with the increasing of the content and grinding of a basalt stone and fine sand.
Researching materials to create insulating and decorating wall and floor tiles from concrete light decorated on foam glass bubble
Authors: Minh Nguyen Ngoc , Gia Nguyen Ngoc , Nguyen Ky Khac 
Published: July 2020

Abstraction
Due to tropical climate, in Vietnam, the summer outdoor temperature is above 40°C, amplified by the high UV content sun rays (8-10) and thus, heated the atmosphere. A combination of high temperatures, sun-proofing roof, thin walls intertwined with glass wall panels has formed giant greenhouses and has caused the temperature inside the building to rise as if it is roasting the living residence. Clay tiles on the floor was deformed, causing surface cracking and leakage from rainwater. In order to reduce the heat transfer, the use of insulation materials, decorative for facade walls and roof floors is deemed a necessary solution, and the study of the application of decorative colored concrete proved to be the ultimate solution. The study of factors affecting the quality of wall cladding, heat-insulating and decorative products for walls and roof floors from lightweight concrete decorative blends insulating on porous glass aggregates will solve the problem that the Ministry of Construction Vietnam No. RD 44-19 project set out.