bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Coordinated Charging/Discharging Strategy for Electric Vehicles Based on Price Guidance Mechanism
Authors: Song Jiaoru , Suo Lian , Han Mengxia , Wang Yue 
Published: December 2019

Abstract
In view of the contradiction between the rapid growth of electric vehicles ownership and the imbalance of electric vehicles’ charging demand and the lower distribution network service ability, a coordinated charging/discharging strategy maximizing the discharge depth on the basis of satisfying the charging demand of electric vehicles is proposed. This paper analyses the relationship between the charging/discharging time intervals of electric vehicles and the division of time-of-use electricity price, the vehicles’ arrival/departure time and the daily driving mileage. Take minimizing load fluctuation as the objective and take meeting the charging demand of electric vehicle users as the restrains based on time-of-use electricity price. Monte Carlo simulation and PSO algorithm are used for simulation and calculation. The results show that with the coordinated charging and discharging strategy, it can not only realize the peak load shifting, but make the customers’ charging cost lower.
Transformer Location Analysis Based on Poi Information
Authors: Yan Yi , Xiao Jianyi , Zeng Chaolin , Yang Yongjiao , Zhan Lichao , Li Bo 
Published: December 2019

Abstract
The location of the transformer is an important part of the power transmission and transformation project. This paper first summarizes and summarizes the predecessors’ rules for transformer location, and draws the following six rules: close to the load center, making the regional power grid layout reasonable, high and low pressure side access lines convenient, station area topography, station area geological. And the application of screening 1451 original poi data to obtain 368 poi data in accordance with the rules of 3 and above, and then introduce the ap clustering model, and apply the data to 9 ap clustering models by setting different parameters. In the optimal result, six clustering points are given, and the scores of the six locations are calculated and normalized to obtain the ranking of the transformers. The first one is the textile street.
Summarize on Application of Arc Protection Device in Substation
Authors: Pan Benren , Zhang Yan , Gui Xiaozhi , Wan Yong , Wang Guannan 
Published: December 2019

Abstract
Arc protection device plays an important role in ensuring the faults of switchgear in substation. This paper analyses the operation problems of switchgear in substation, analyses the characteristics and necessity of arc protection device, expounds the principle and system structure of arc protection, and puts forward the design method of arc protection, which can quickly remove the faults in the operation of substation, and ensures that guarantee the safe and stable operation of substation.
Design and Research of Thyristor Rectifier Based on Polarization Technology
Authors: Liu Jie 
Published: December 2019

Abstract
The thyristor rectifier has the advantages of simple operation, fast response, good steady flow accuracy and high rectification efficiency. In this paper, the system structure design and parameter design of the thyristor rectifier are carried out, and the main technical measures of the rectifier cabinet are analyzed. Through the research of the thyristor rectifier system, the system can obtain high stability DC current, which can basically meet the actual production needs.
Design and Implementation of Aircraft Measurement Data Monitoring and Analysis Software under Linux
Authors: Zhu Zebo 
Published: December 2019

Abstract
Due to the platform change, the measurement data monitoring software under the Windows platform has no running environment. In order to solve the data monitoring blind zone between the data distribution server and the router link, this paper proposes to use port mirroring technology to solve this problem. And research and development of a set of Linux platform measurement data monitoring and analysis software.
An Electro-Acoustic Devices Recognition Detection System Based on Machine Vision
Authors: Wang Yu , Wu Zhiheng , Duan Xianyun , Chen Zhuquan , Lin Hongrui , Tong Jigang , Li Ping , Zhu Min 
Published: December 2019

Abstract
Aiming at a series of problems, such as low efficiency, low quality and high error detection rate, in the manufacturing process of various electro-acoustic devices, a recognition and detection system based on machine vision technology is proposed.Electroacoustic device were collected to patch the image threshold segmentation, feature points of the special points and electroacoustic device noise in image segmentation, and then to get the edge detection and binarization image set according to the characteristics of characteristics of electro-acoustic device patch contour recognition and extraction, realize the automatic recognition and detection of electroacoustic device.The system has successfully carried out the identification and detection test of electro-acoustic devices, and has high identification and detection efficiency and accuracy, high stability of the system, which has great practical application and promotion value.
A Feature Selection Framework for Software Defect Prediction Using ISFLA
Authors: Bi Wenbin , Yu Fang 
Published: December 2019

Abstract
Aiming at the problem of feature space dimension reduction and large search space in feature selection of software defect, a defect prediction feature selection framework based on meta-heuristic search algorithm (ISFLA) is proposed. The framework improves generalization of predictions of unknown data samples, enhances the ability to search for features related to learning tasks, and completes further reductions in feature space dimensions. Using some NASA data sets, several common software defect prediction methods and ISFLA simulation experiments were carried out. The experimental results show that the software feature selection framework based on the improved shuffled frog leaping algorithm effectively improves the performance of software defect prediction.
Influence of process parameters of firing clay materials on phase composition and structure of ceramics
Authors: Vladimirov K D , Saraeva P I , Chernykh T N 
Published: December 2019

Abstract
The article describes the influence of the technological impact the firing process has on ceramics structure. The process of forming a ceramic crock is described, which is represented by crystalline phase and glass phase. The dependences of the end product properties on the phases constituting its structure are described. Using X-ray phase analysis and electron microscopy, the authors studied ceramics produced from three types of clay materials with different content of clay minerals (kaolinite and montmorillonite). The change in the phase composition of the ceramic crock depending on the firing temperature is described. A conclusion was made on the fact that the structure is mainly glass phase with crystalline impurity inclusions. A necessity has been revealed for producing ordered structure for mullite.
Analysis of quality of construction products by example of LLC “RTITS”
Authors: Zhegera K V , Petuhova N A , Gargala A V 
Published: December 2019

Abstract
The article provides information about the need for quality management in enterprises. Theoretical and methodological approaches to the study of quality improvement problems in the foreign and Russian economy are considered. The results of the application of statistical evaluation of the quality of construction products are presented by the example of well rings made by LLC “RTITS”. The reproducibility index, quality indicator of the technological process Ik was calculated, taking into account the stability of the technological process and the finished product quality. Constructed function desirability. The authors performed the analysis of results obtained and developed recommendations for quality assurance in the production of well rings
Application of clusterization algorithms for building materials classification on radioactivity in R
Authors: Sokolov P E , Sentenberg S A 
Published: December 2019

Abstract
The clusterization method of raw construction materials on their radioactivity with clusterization algorithms within statistical treatment environment and R analysis applied is handled in the paper. The authors make an emphasis on application of modern methods of raw construction materials radioactivity data treatment. Raw construction materials are evaluated on the basis of objective evidence, reflecting indices of specific activities and of inner natural radionuclides specific activity. As a result of net learning on the experimental data the authors acquire a cluster map provided with segmentation on the natural radionuclides effective specific activity. Consequently, both the criteria are established and the hitting of a raw material into the corresponding cluster is estimated. The application of a “decision tree” algorithm makes it possible to state rules according to which raw materials refer to these or those clusters. As opposed to traditional analysis methods, the applied technique of radioactivity estimation is based on quantitative characteristics. On the ground of the acquired results conclusions are made on a possibility and appropriateness of application of the said technique of analysis and classification of raw materials radioactivity data.
Methodological approaches to optimization of grain composition of heat-resistant concrete
Authors: Stefanenko I V , Gnedash E E , Akchurin T K 
Published: December 2019

Abstract
Heat-resistant concrete of fine-grained structure attracts special attention of refractory applications manufacturers. The task of optimizing the grain size composition of heat-resistant concrete fillers on the basis of by-products and related products of silicon carbide (SiC) production and waste products of abrasive tools production on a ceramic bond of fine-grained structure is of research and practical interest. It is proposed to use grain size compositions of gapped grading for a fine-grained cement system of heat-resistant concrete. The analysis of methodological approaches in the calculation of the grain size composition of concrete fillers allowed us to determine the Fuller formula as an optimal one from a practical perspective. Due to the use of gapped grading of the grain component of the concrete composition, an optimal ratio between the size of the grains of quartz sand and the waste of abrasive production was achieved. Balanced distribution of the filler in concrete mix made it possible to obtain intimate contact between their grains, which resulted in dense, “well-packed” concrete structure, and will further enable 5-10% saving of the cement binder. The compressive strength of samples with gapped grading filler was 38.7 MPa, the thermal resistance (water, 800°C) amounted to 16 thermal cycles.
Results of determination of thermal conductivity coefficient for board materials from plant waste
Authors: Vachnina T N , Susoeva I V , Titunin A A 
Published: December 2019

Abstract
This paper solves the problem of recycling irretrievable waste spinning flax and cotton. This plant waste is incinerated or sent to landfill. It is proposed to use plant waste as a filler for building materials for thermal insulation purposes. New thermal insulating materials based on plant waste are manufactured using the technology of soft fibreboard wet production method. Synthetic thermosetting or inorganic binders are used as the matrix of the composites. The article presents the results of an experimental determination of the coefficient of thermal conductivity of plate materials from irretrievable spinning waste of flax and cotton fibers. Composites based on flax waste filler have a lower value of thermal conductivity coefficient than for cotton waste plates. The results of determining the thermal conductivity coefficient of composite boards based on spinning flax and cotton showed that the developed material can be used as an internal thermal insulating layer of enclosing structures.
Plant for production of wood polymeric paving slabs
Authors: Fomin A A , Saldaev V A , Prosvirnikov D B 
Published: December 2019

Abstract
The article describes in detail the developed method of obtaining composite wood-polymer paving slabs, obtained on the basis of wood waste and secondary polymeric resources. According to this method, samples of a light and effective composite material in the form of paving slabs were obtained in a laboratory installation. The results of experimental studies of the operational properties of the material obtained are presented, in particular, the abrasion rates and the degree of the material water absorption were determined. A qualitative analysis of the performance criteria of the obtained material in comparison with the polymer-sand and cement-sand compositions was conducted. On the basis of the research carried out, a pilot plant was developed for producing composite wood-polymer paving slabs, its technical characteristics were described in detail, and the allowable ranges for the technological parameters of the plant were determined. The obtained ranges will make it possible to make calculations correctly, establish the limits of experimental variation, and carry out a number of other research complexes on the unit, the purpose of which will be to determine the optimal operational parameters of the process for producing wood-polymer paving slabs.
Analysis of concrete deformation diagram, received by different ways of formation, and their separate layers
Authors: Stel’makh S A , Shcherban’ E M , Kholodnyak M G 
Published: December 2019

Abstract
The article covers the processes that occur during centrifugation and vibration centrifugation of ready-mix concrete. It dwells upon the conditions of specific (variational) structure formation of as-formed centrifuged concrete, the outer layer of which is formed mostly by coarse aggregate with an interlayer of cement-water paste; the closer to its inner surface, the higher the content of small particles of dense aggregate and cement-water paste. Having conducted the research, the authors plotted and analyzed stress-deformation diagrams of concrete samples and their separate layers acquired through various molding processes. They studied different concrete mixes with varied combinations of aggregate and dispersed fiber. A mix of vibration centrifuged concrete with combined aggregate (granite + lightweight expanded clay aggregate) and combined fiber (steel + basalt) was chosen for further research. One diagram was plotted for vibrated concrete, which has an even distribution of properties over the cross sections; three diagrams were plotted for centrifuged and three – for vibration centrifuged concrete (one for each layer: outer, middle, and inner). The experimental data was analyzed.
Assessment of maintainability and resistance to external influences of PVC waterproofing membrane systems
Authors: Zagorodnikova M A , Mamontov S A , Yartsev V P 
Published: December 2019

Abstract
Recently, waterproofing systems made of PVC membranes, used in the construction of high-rise buildings with a developed underground part, have gained great popularity. Due to the considerable depth and magnitude of static loads at the foundation level, the complete replacement of such waterproofing with standard methods in case of its damage is practically impossible. To avoid this situation, a multi-layer PVC waterproofing membrane system with a geotextile middle layer was created. To repair such a system it is supposed to inject a polymer composition into it through special tubes, which after curing restores the waterproofness of the membranes. The article presents the results of an experimental assessment of the maintainability of the described waterproofing system. It was proved that the injection of the repair composition into the middle geotextile layer is possible even with external static pressure on the membranes of 146 t/m2. At the same time, the high resistance of PVC membranes to the long-term action of a significant static load and repair composition was found, and the durability of a waterproofing system, predicted from the point of the thermal-fluctuation theory of the destruction of solids, under operating conditions for shear was about 50 years.
Fibre-reinforced foam concrete with hollow glass microspheres
Authors: Perfilov V A 
Published: December 2019

Abstract
The article covers the results of research and experimental studies aimed at determination of the impact of hollow glass microspheres on the properties of light fine-aggregate foam concrete. The authors determined the physical and mechanic characteristics of foam concrete containing a different amount of microspheres, polymer and basalt fibres using different foaming and superplasticising agents. It was determined that optimal content of hollow glass microspheres with respect to quartz sand is 50 %. As a result strength properties increased by 16-23 %. Foaming agents PO-6 and PB-2000, superplasticising agent Sika ViscoCrete 5-800, polypropylene fibre VSM and basalt fibre were selected as the most efficient. The authors found out that the introduction of coated hollow grass microspheres MS-VP-A9* facilitated the improvement of the pore space structure and the increase in interpore partition strength.
Effective non-destructive methods of evaluating quality of efficient building materials
Authors: Popov V P , Popov D V , Davidenko A Yu 
Published: December 2019

Abstract
The research is devoted to the analysis of available and widely used conventional measures to ensure reliable operation of the in-situ reinforced concrete structures and their compliance with legal requirements. It requires using one of the research trends of the Samara school of material sciences developed by the authors some time ago. Several stages of the work have been distinguished during the process of defining methodological foundations for effective non-destructive methods. The first stage concerned the proper mathematical apparatus of the concrete deterioration under various types of external effects. The second stage is important for determining the composition of basic physical and mechanical characteristics. Finally, the third stage is the period when the most reliable existing non-destructive methods are identified and investigation on new techniques is carried out. Thus, the combination of the A.A. Griffiths energy theory and the kinetic theory of S.N. Zhurkov has led to the formation of the mathematical apparatus that is able to simulate conditions of external effects. Testing effective methods for the concrete quality control developed by authors of this paper has been performed at the construction site. The conditions under study are characterized by a large number of ambiguous factors influencing the quantitative indicators of quality control criteria.
Petrographic study of coarse-grained inclusions in clay raw materials
Authors: Petrova E V , Chumachenko N G , Baranova M N 
Published: December 2019

Abstract
The article presents the results of standard assessment of coarse-grained inclusions of low-melting clay raw materials taken from four fields. It is shown that such an assessment of coarse-grained inclusions does not give a complete picture of their properties and grain size composition. Further detailed studies of coarse-grained inclusions are performed by microscopic and petrographic methods. The microscopic method was applied when each fraction of inclusions was investigated in the transmitted and reflected light while using a lens of 8x and at an ocular of 9x, field of view diameter being 2.4 mm. The following characteristics of inclusions were defined: size, color, gloss, porosity (pore configuration, their size, quantity and character).The researchers paid special attention to the study of field of view of different fractions, determining clay raw materials stability of properties and causing defects formation. The difference of carbonate inclusions for the clays under study was determined. The type of coarse-grained inclusions, their structure and size can affect the quality of ceramic materials and should be taken into account in production technology. The obtained results will allow predicting the quality of ceramic materials from the investigated clays.
Effect of coalescents on properties of protective styrene-acrylate latex coatings of oriented particle chipboards
Authors: Matveeva L Yu , Yastrebinskaya A V 
Published: December 2019

Abstract
It is necessary to note that in the production of finishing and protective materials for the surfaces of oriented chipboards, the most effective film former today is considered to be styrene-acrylate latex. However, the known styrene-acrylate dispersions have a minimum film formation temperature within 14–20 ° C, which doesn’t satisfy mass construction works. In order to obtain high-quality films in a wide range of temperatures, it is necessary to use special additives - coalescents. It was decided to use methoxypropanol, ethylene glycol and butyl glycol as coalescents. Their main selection criterion was the homogeneity of the resulting film and the absence of external defects. Based on the studies conducted, it was determined that the butyl glycol additive in the composition leads to the reduction in the elastic modulus of film coatings, which, in its turn, invariably leads to the increase in the relative elongation at break. The butyl glycol additive also enhances the film-forming and adhesive properties of styrene-acrylate latexes. According to the results of the experiments a composition with 4% wt. butyl glycol content as a coalescent was selected for further research.
Heat treatment of concrete products and structures: issues of strength and efficiencies
Authors: Akulova I I , Shchukina T V , Sheps R A 
Published: December 2019

Abstract
The article describes the study of the possibility of heliothermic treatment of concrete products in the climatic conditions of a particular region. Sufficient intensity of solar radiation in the summer months, including the observed significant clouds accompanied by precipitation, allows establishing a thermal regime in the solar cells of the covering type, which provides the required strength set for shipment during the day. The subsequent tests showed high strength characteristics of the manufactured products of samples whose numerical values are not inferior to those obtained by traditional heat treatment. The introduction of solar thermal treatment in the production of concrete products will save energy for 180-200 R/m3 of products.
Impact of design decisions on quality of highways
Authors: Pimenov A T 
Published: December 2019

Abstract
The need for a compulsory record-keeping of the properties of road-building mixtures that determine deformations of highways under the influence of dynamic transport loads, as well as climatic action, is already grounded at the design stage. Special attention should be given to the operational characteristics recommended for the use of road-building materials, including flow (viscosity, fluidity, deformability) and thixotropic (dilution or concentration under the influence of mechanical loads, the ability to restore the destroyed mechanical impacts the original structure) properties of crushed stone sand mixes. The importance of taking into account the mechanisms of interaction of the road base with the surrounding ground is determined, which is connected with the appearance of the defects on the road surface during operation process. Typical effects of pavement deformation Act crack various configuration (mesh, surface, shrink, cross-cutting), potholes and sinks, prosadi and shifts, waves and a comb, track etc. In addition, there are inaccuracies in the recommendations for the construction of individual structural components of highways, presented in regulatory documents, which requires careful consideration as early as at the design stage. Normative documents do not fully take into account the need for selection of macadam-sand mixture, given its deformativnosti influenced by dynamic loads.