bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research of qualitative properties of soils during construction works
Authors: Galitskova Y M 
Published: February 2021

AbstractThe development of humankind leads to an increase in the number and variety of sources of environmental pollution, to an increase in the volume of emissions of harmful substances. In urban conditions, environmental pollution occurs due to emissions of exhaust gases coming from various cars, leaks of fuels and lubricants coming from different equipment, etc. Analysis of the current state of urban areas shows the highest concentration of pollutants being present in soils. The article considers the problem of territories of construction sites contaminated with combustible substances coming from construction machinery, such as gasoline, kerosene and diesel fuel. These contaminants lead to the suppression and death of ornamental plants planted at the final stage of construction works. The authors describe in detail the methodology and results of laboratory studies of the process involving penetration of these contaminants into the soil. On the basis of the results obtained, recommendations are proposed for minimizing the negative impact of these factors on the soil and increasing the efficiency of work on the improvement of adjacent territories.
Improving sintering by lowering the temperature of melt formation during firing
Authors: Chumachenko N , Khafizov I , Kizilova D 
Published: February 2021

Abstract
Liquid sintering for ceramic products is the main process providing necessary properties: strength characteristics, density and porosity. In order to reduce energy consumption for the production of ceramic products it is important to obtain a melt at a lower temperature with a wide sintering interval. Clay raw materials natural composition provides the melt formation at the temperatures above 710° C. The fusible silicate triple eutectics composition, providing the melt formation at the temperatures below 500°C is found. The components for complex fusion additive have been determined. The influence of the amount of complex fusion additive on the dynamics of melt charge change on the basis of Locosovo loam was studied. It was found out that the refractory additive in the amount of 6 to 18.5% extends the sintering interval, reduces the temperature of formation of the refractory melt and provides a decrease in firing temperature by 100°C. The optimum quantity of complex fusible additive providing improvement of sintering of ceramic materials at the expense of decrease in temperature of melt formation during firing is revealed.
Economic justification for the use of narrow-profile structures for flood protection
Authors: Balzannikov M I , Mikhasek A A , Rodionov M V , Mingafin R R 
Published: February 2021

Abstract
The article notes that natural-anthropogenic emergencies often arise with the co-occurrence of factors of both man-caused and natural origin of very rare recurrence. In order to avoid such situations, it is necessary to provide for special arrangements and technical measures. The authors analyzed the conditions for preventing flooding of the territory built up with residential multi-storey buildings and social infrastructure. The territory has low surface elevation marks and is surrounded by water bodies: the Volga and Samara Rivers, as well as the oxbow channel path. At the same time, practically along the entire border of the territory, there are infrastructure engineering facilities and lines (roads, dams) with surface elevations that are significantly higher than the existing elevations of the built-up area. The authors present the results of the survey of these facilities, on the basis of which recommendations for the reconstruction of their individual sections are developed. When justifying the minimum elevation of protective lines, the parameters of a rise of water level in water bodies (at the times of discharge in the Samara River of rare recurrence) were taken into account. The conditions of originating wind waves and other disturbances of the free surface of the adjacent water area at maximum water levels and the damping effect of natural and artificial obstacles along the main line of wave acceleration were taken into account.
On the technology of aluminosilicate and high-alumina phosphate hardening products
Authors: Vlasov A , Vlasova E 
Published: February 2021

Abstract
The influence of alumocalcium sludge on the physical, mechanical and thermal properties of alumosilicate and high-alumina products of phosphate hardening intended for operation at temperatures up to 1500 °C. It was found that the use of alumocalcium sludge in the compositions of non-burning phosphate compositions helps to reduce the polymerization temperature and thus provides an earlier formation of rock-like phases that are not subject to hydration. Based on the obtained mathematical model, optimal non-burning compositions are developed that are not inferior to similar products in terms of physical, mechanical and thermal parameters, which provides an expansion of the range of applications of the raw material base.
Analysis of various types of loads from a multi-layer structure of green roof systems
Authors: Korol E A , Shushunova N S 
Published: February 2021

Abstract
For the sustainable development of green building technologies and the use of roof coverings with greening systems on buildings, it is necessary to take into account the complex of different types of loads from the multi-layer roof structure, as well as their effect on the building covering during operation processes. The introduction of new competitive technologies and methods of production of construction and installation works will ensure an increase in the operational quality of housing facilities. The article discusses the traditional technologies of roofing for operating roofs with greening systems, called «continuous» greening systems and new technologies for roofing with modular green roof systems, developed by the authors. The analysis and calculation of various types of loads for the given constructive and technological solutions of the operated roofing with greening systems is carried out.
The assessment of autonomy indexes of socially significant elements of urban infrastructure for creating a safe living environment
Authors: Shilova L A 
Published: February 2021

Abstract
The main task of modern society is to ensure and maintain a safe environment for human life. However, the large-scale introduction of information technologies leads to the fact that a technological process is constantly going on in residential buildings and structures, which can lead to the emergence of new previously unexplored sources of emergency situations, and the risks associated with them. In this regard, the article presents an approach to assessing the autonomy of construction projects in the event of an emergency. The autonomy of a construction facility will be understood as the ability of a construction facility to perform its target function during its design life without external intervention in the event of an emergency. At the same time, it is proposed to describe the autonomy of a construction object by the following indexes: reliability, stability and an index of natural and man-made safety.
Use of photovoltic systems in the construction of wooden houses in a sustainable standard
Authors: Iringová A , Kovačic M 
Published: February 2021

Abstract
The paper deals with the analysis of the efficiency and application of photovoltic systems in the roof plane and in the perimeter walls in the construction of wooden houses in a sustainable standard. The installation of photovoltic systems is a source of renewable energy in the construction of zero energy buildings with minimal emissions of environmental pollution. Semi-transparent photovoltics integrated in the building (BIPV) is one of the technologies that has the potential to increase the energy efficiency of the building and at the same time aesthetically complete the design of the building. This work deals with the construction and material solution of BIPV systems, including BIPV glazing products, tiles and modules and their application in the architectural solution of a model building.
Improvement of Larsen sheet pile retaining wall structures with the use of coarse-porous concrete
Authors: Mikhasek A A , Rodionov M V , Bezuglov A A 
Published: February 2021

Abstract
The construction of hydraulic structures is associated with a significant amount of construction and installation work. Reducing the cost of building such structures is a vital task. The solution to this problem is to improve the design of the retaining structure by means of combining the sheet pile (flexible structure) and the gravity wall (massive structure) into a single whole. In this case it is assumed that the sheet pile provides protection against negative atmospheric effects on the massive wall and ensures the stability of the structure against displacement. At the same time the gravity wall is made of “low” quality materials, e.g. using waste products - products of concrete crushing and / or coarse-porous concrete on crushed sedimentary rock. The gravity wall reduces the active pressure on the sheet pile wall from the backfill side, and this allows using composite and PVC based sheet piles. This article deals with the modeling of retaining walls with various types of composite sheet piles, types of soil, free height and thickness of the gravity element.
Modal split analysis through the traffic volumes
Authors: Drličiak M , Čelko J , Cingel M 
Published: February 2021

AbstractThe article deals with the analysis of the modal split in Žilina self-region (ŽSK) during the morning and afternoon peak hours. The results are based on a mobility survey in the region. Households and inhabitants were divided into three main groups of the population. The first group characterized the inhabitants in the district towns, the second group in the other towns and the third covered the villages. The modal split was analyzed for all main groups and the most numerous subgroup - economically active people. In parallel with the analysis of mobility data, we analyzed data from the traffic surveys on several congested profiles. From the results, we determined the amount of traffic above the real road capacity limit. In the last part of the article, we present an example of combining data from the mobility and transport surveys. We defined the number of trips that need to be transferred to another transport system - the train.
The influence of the pavement surface texture on the Pendulum Test Value
Authors: Kováč M , Brna M 
Published: February 2021

AbstractThe article deals with the problem of finding a relation between surface texture and skid resistance represented by the Pendulum Test Value. For the texture measurements was used a new device that can capture surface irregularities up to the microtexture level. Besides Pendulum Test Values were also evaluated standard roughness parameters as well as the Mean Profile Depth widely used for pavement surface macrotexture evaluation. The texture parameters were evaluated for both macro- and micro-texture of all tested surfaces. Two groups of surfaces were measured. The first group, represented by reference surfaces with known parameters, was used for evaluation of the reliability of new device as well as for determining the relation between microtexture and pendulum test value. The second group was represented by asphalt mixture specimens designed to create various surfaces with different parameters of both macrotexture and microtexture. The obtained results show that there is no unambiguous direct relation between the size of irregularities and skid resistance. That means that high values of both macro and microtexture won’t have to necessarily mean a high level of friction. The proper size and proportion of both parts in their optimal combination are needed.
Economic aspects of pavement surface degradation in terms of noise pollution in their surroundings
Authors: Trojanová M , Decký M , Ivanovičová A , Hodásová K 
Published: February 2021

Abstract
The morphology of the road surface is changing in time which has a consequence in increasing noise levels in areas near the roads. This fact was determined by measurements on two road sections. The measurements were done using the Statistical Pass-By method. Different types of asphalt surfaces were used on the road sections. The Statistical Pass-by Index (SPBI) was quantified from the measurements, which were carried out over the years. Functions of road surface noise evolution in time were calculated from quantified values of SPBI for both measured road surfaces.
Experimental Investigation on Mechanical and Physical Properties of Bamboo and Sisal Fiber Reinforced Hybrid polyester Composite
Authors: Getu Dawit , Nallamothu Ramesh Babu , Minaye Gashaw , Fentaw Getachew , yigrem Melkamu , Kassa Eshetu 
Published: February 2021

Abstract
In composites, characteristic fibers are arising as minimal effort, lightweight and clearly naturally predominant choices to glass fibers, which are utilized in transportation, aviation and development businesses. The development of composites with their improved form is going on with intensive effort. Composite materials which have low densities are used for structural functions, leading to high strength to weight and high stiffness to weight compared to other conventional structural materials. Composites area unit of low value, bio degradable and simply will reclaimable through thermal strategies. Additionally, to the high fatigue strength to weight magnitude relation and fatigue harm tolerance of the many composites conjointly makes them a gorgeous possibility. The light-weight natural fiber composites improve fuel potency and cut back emissions within the use section of the element, particularly in automotive applications.In this investigation hybrid composite material was prepared and composed of bamboo and Sisal fiber which is reinforced composite with in three different fiber orientation, fabricated by hand layup method. Different fiber orientation of sample was prepared and test was carried out to find the Mechanical Behavior and water absorption tests as per ASTM standard. Micro structure was analyzed by optical microscope. Here observed that varying the fiber orientation of bamboo and sisal reinforced sample produced also vary mechanical properties and Unidirectional 00 fiber orientation was found to have a impact strength and the water absorption is more compared to other fiber orientation whereas bidirectional (00/90 0)fiber orientation was found to be having higher hardness strength than unidirectional 900 and Unidirectional 00 fiber orientation which can be used for nonstructural automotive interior body application.
Effect of Silicon Content on wear and Hardness of Al-Si Alloys
Authors: Hatti Gururaj , Vishwanath V H , Dinesh K R 
Published: February 2021

Abstract
In the current work the Al-Si composite is prepared using stir casting method with variation in the percentage(4%, 6% and 8%) of the Si particles in it. stir casting method is one of the cheapest method for production of Al alloys. The prepared composites of different percentages of Si are investigated for it wears behaviour using Pin-on-Disk machine and other properties like hardness. Characterization of Worn surface of the composite is done using SEM. Among the metallic matrices, the aluminum-based matrix remains the most studied metal matrix material for the production of MMCs. This is largely due to the large variety of properties provided by aluminum-based matrix composites at low manufacturing costs. While many Metal Matrix Composites ( MMCs) are desirable for use in various industrial applications, Aluminum Matrix Composites ( AMCs) are the most commonly used in specialized applications because they combine reasonable strength, low density, durability, machinability, availability, performance and price. In aerospace applications, the excellent tribological characteristics of Al-Si and Al-Sn alloys have led to their widespread use, especially in plain bearings, cylinder liners and internal combustion pistons. It is seen that Si is uniformly distributed in the Al matrix and hardness increases to 71BHN with 8%Si in Al matrix. Further analysis revealed that the microstructure homogeneity of the samples is strongly affected its hardness and Wear rate decreases with increase in Si.
Experimental analysis of Fracture Toughness of EN9 and EN31 Steel under double layer of electroplating materials with different varied thickness
Authors: Kari Basavaraja D , Sowmya C , Naik Ravindra 
Published: February 2021

Abstract
With the advent of technology, there is a need to invent newer plating to improve the strength of the material. In this paper, two materials namely Steel Grades EN9 and EN 31 are considered. These materials are having quite a good industrial applications and are being used in many machine parts manufacture. Some of the widely used applications are in the manufacture of Crank shafts, Cylinders, Gears, Sprockets, aerospace parts and body of the ships and automobile parts mainly its surfaces which require high impact resistance and also wear resistance for increased life of the components. The non-electro plated materials are also having the property of higher abrasion resistance. In this paper, the preparation of the specimen, electro plating techniques adopted for getting varied thickness and their critical characteristics in improving the property of the material are discussed further, a statistical model is proposed to obtain the bench mark for its effective implementation of these materials for its industrial use.
Performance Enhancement of CPC Using Graphical Ray Tracing
Authors: Bargale G H , Chougule Dr N K 
Published: February 2021

Abstract
This paper presents the approach of finding an optimized location of a tubular receiver for a compound parabolic collector (CPC) with 23.06° acceptance angle. At this angle reflected rays concentrate at and directly above the main focus of a parabola. Ray tracing plays vital role in analysing rays falling on collector surface and reflected to the receiver. Using this analysis, solar collectors are often designed or improved to enhance the thermal performance. As compound parabolic collectors (CPC) are non-imaging kind and positioned in E-W direction, they are capable of assembling and reflecting an enormous quantity of radiation to the receiver with least tracking. Ray tracing technique was used to evaluate the performance of CPC. A graphical ray tracing (GRT) with SolidWorks was employed to observe the pattern of solar ray concentration. The main aim was to design CPC for low to medium temperature thermal process heat applications, specifically for Textile industries. It is observed that over one tubular absorbers will work better for CPC to absorb most solar rays and two tubular receivers lined up horizontally enhanced the CPC daily average optical efficiency by up to 15-20% compared to the single tubular receiver with the same diameter. Ray-Tracing analysis would possibly provide necessary contributions to beat design problems, complementing the experimental results obtained through thermal testing and allowing the accomplishment of extra thorough testing outputs with lower experimental requirements.
Design and Development of Portable Electrical Resistance Furnace
Authors: Hosamani Anand K. , Naik Bharat , Kerur Shirish M. , Ratan Vinayak , Bhushan Chandra , Girisha L. , Anvekar Yash , Shivakumar s 
Published: February 2021

Abstract
Casting is a very old technique used for making various parts. There are various types of furnaces used for melting metals and alloys, working on different principles. But we Designed & Developed portable electrical resistance furnace to melt at low cost, environment friendly Metals. Further, the furnace is intended to be able to cling to the melt for necessary amount of time. Both electrical and mechanical aspects of furnace design were presented. Finally, we fabricated a furnace of around 9 kW evaluations with working temperatures closer to l200°C. Constructions of furnace process are discussed and its heating performance was tested by melting aluminium, brass and its alloys. Its operation was discussed to suit the heating requirements for various metals and alloys.
Nanostructured Anti-Glare Coatings for Night Visibility
Authors: Madhusudhana R , Sushma K L , Chandra Sekhar K , Krishnamurthy L. , Gopalakrishne Urs R , Sangamesha M A 
Published: February 2021

Abstract
Anti-glare coatings (AGCs) have progressed into highly effective reflectance and glare minimizing components for several optical and opto-electrical equipment’s. The extent in research and development with the contribution of nanotechnology in opto-electronics has improved the AGCs. The present study is related to the composition of a nanostructured antiglare coating. In general, antiglare films have been widely used to deal with glare but this is not proper for an outdoor usage in glasses. Hence, improvement in performance of night-driving glasses is necessary to reduce the negative effects of headlights glare. In this paper nanostructured antiglare coating layers on glass substrate is done using Zirconium Oxide (ZrO2). The obtained coatings are highly transparent and reflective in nature. Sol–gel method is adopted for the preparation of gel, dip-coating and spin coating technique was employed to develop coatings on glass substrates. The obtained coatings were further characterized by XRD to analyze the phase crystallinity; SEM was used to determine the surface morphology of the coatings, EDX to estimate the elemental composition of the coatings and UV-vis Spectroscope was used to determine the optical properties.
Synthesis and Characterization of Zirconium Oxide (ZrO2) Films on AA5052 and Glass substrates
Authors: Madhusudhana R , Navyashree K C , Krishnamurthy L. , Gopalakrishne Urs R 
Published: February 2021

Abstract
Aluminum alloy has gained lot of importance in Aerospace Industries and Engineering applications because of its strength, high resistance to heat, light weight and durability. In this paper we made an attempt to improve the AA5052 substrates properties by coating Zirconium Oxide (ZrO2) by Sol-Gel Method. Glass substrates were also coated with Zirconium Oxide (ZrO2) coating. The coated AA5052 and glass substrates will be annealed to check the thermal resistance for various time of thermal rig test. Micro crystalline properties and formation of ZrO2 of the coated film is evaluated for surface morphological studies by using Scanning Electron Microscope (SEM) and the elemental composition studies done by EDAX (Energy Dispersive Absorption X-ray Spectrometer).
Physical, chemical and surface morphological characterization of single areca sheath fiber
Authors: Suresh P S , Dilip Kumar K , Dhanalakshmi S , Basavaraju B 
Published: February 2021

Abstract
The technological advance in various streams necessitated the increased demand for lesser weight and minimal cost materials. The concerns to ensure environmental sustainability, those newer materials were expected to be decomposable. In the current study, chemical, physical and mechanical and morphological aspects of areca sheath/frond fiber are investigated. It is observed that, the cellulose, hemicelluloses and lignin wt. % are 65.02, 8.26 and 18.62 respectively. The XRD study confirms the percent crystallinity of 81.33% and the crystallinity index of 0.77. The fiber further exhibited the tensile strength of 59.62±2.20 MPa. The TGA study reveals the higher degradation rate at 322.2 °C and the residual mass at 500 °C is 33.23%. The morphological study is done through scanning electron microscopy (SEM). The other properties such as density (0.9 g/cm3), the fiber length, diameter, and moisture uptake are also reported. From the very promising results, the fiber can be used as a reinforcement agent and the composites may find potential applications in automobile panels, interiors, structural light weight bearing sheets, etc.