bluuebunny/crossref_metadata_2025_split huggingface dataset:
The phenomenon of bicyclones a high-frequency induction discharge and the related questions of flows in channels with the presence of zones of heating, bounded along the longitudinal coordinate
Authors: Gerasimov Alexander , Kirpichnikov Alexander , Sabirova Farida 
Published: October 2019

Abstract
The phenomenon of a bicyclones in a high-frequency induction discharge is explained. It is shown that this phenomenon should be characteristic of a wider range of objects having an internal heat source, limited by the longitudinal coordinate. In the present work, this phenomenon is considered as peculiar to fairly wide class of flows in cylindrical channels if there are one or several heating zones (internal or external) inside these channels, limited by the longitudinal coordinate.
Composite materials for next generation plasma energy systems
Authors: Smerdov R S , Mustafaev A S , Spivak Yu M , Grabovskiy A Y , Moshnikov V A 
Published: October 2019

Abstract
The investigation of graphene and porous silicon (PS) composite materials for low work function PETE (photon-enhanced thermionic emission for solar concentrator systems) energy systems synthesis is performed in this article. These two types of materials are suggested for further development and study due to noteworthy physical effects taking place in the aforementioned structures. The nature of low-work function phenomenon is interpreted as related to the influence of functionalization and synthesis parameters on the surface structure of composite materials. The Raman spectroscopy technique is used to characterize porous silicon based nanostructured composite layers (PS/Ag). The interpretation of PS/Ag Raman spectra is suggested. The significant decrease in the effective electron work function to a value of 1 eV is registered in a perforated graphene-covered nickel anode intercalated with Cs atoms. SEM X-ray microanalysis of the anode surface is performed, the interpretation of the anode work function lowering effect is proposed.
Synthesis of carbon nanostructures in electric discharge
Authors: Timerkaev B A , Shakirov B R , Galieva A L , Vafina A G , Kaleeva A A , Yalaltdinova G D 
Published: October 2019

Abstract
A synthesis method of carbon nanomaterials in an argon arc is described in this paper. The two separate cases have been considered. In the first case it is carried out by evaporation of a graphite anode followed by deposition of carbon vapor on a tungsten cathode. In the second case the anode material was specially synthesized in the electric arc recessed into liquid hydrocarbon raw material. The fuel oil was used as a hydrocarbon raw material. During that decomposition of this material took place and as a result carbon deposits were formed on the electrodes. Then these carbon deposits were used as the arc discharge anode at the next stage of the process. In both cases the carbon synthesis of nanotubes was carried out on the tungsten cathode surface. There was the intensive growth of carbon nanotubes during the experiments.
Research of the effect of radio-frequency capacitive plasma treatment in the medium of hydrocarbon gas on properties of the surface of glass fibers
Authors: Karimullin I I , Karnoukhov A E , Skidchenko E A , Yu Makhotkina L , Voznesensky E F , Trofimov A V 
Published: October 2019

Abstract
The paper presents the results of a study of the effect of radio-frequency (RF) capacitive low-pressure discharge on the properties of glass fibers. It is shown that RF capacitive plasma modification in the medium of hydrocarbon gas imparts hydrophobic properties of the material surface.
Pulsating burning of petroleum coke in the Rijke tube
Authors: Larionov V M , Iovleva O V , Saifullin E R , Muhametov I R , Larionova I V 
Published: October 2019

Abstract
In this paper, the combustion of petroleum coke is investigated. It is established that fluctuations of gas in the Rijke tube excited when petroleum coke burns with propane-air mixture. It is shown that over time the mixture supply can be significantly reduced due to the intensification of coke combustion by oscillations.
Application of the rescaled range analysis for vibro-acoustic imbalance control of rotary equipment
Authors: Malahov A O , Zagretdinov A R , Ziganshin Sh G , Vankov Yu V 
Published: October 2019

AbstractThe article discusses the possibility of using R/S analysis for vibro-acoustic unbalance control of rotary equipment. An algorithm for R/S analysis is presented. An application package and an information-measuring complex have been developed. Experimental studies on an axial ventilator are conducted. It has been established that in the absence of ventilator imbalance, the vibro-acoustic signal is close to random. With the advent of imbalance, the Hurst exponent changes.
Radio Frequency Plasma Modification and Physicochemical Properties of Electrochemically Produced Co Nanoparticles
Authors: Mironov M. M. , Dresvyannikov A. F. , Kolpakov M. E. , Sharifullin F. S. , Sysoev V. A. , Krasina I. V. 
Published: October 2019

Abstract
With the help of the TEM and XRD methods, Co sediments produced by an electrochemical method and then modified with RF discharge have been studied. Aggregates with dimensions up to 800 nm are found to be prevailing in the sediment before RF modifications, and branched chains consisting of particles 60—80 nm in size are found after modification. The main phase in the sediments is Co in the hexagonal and cubic modifications.
Nanobarrier coating for elements of gas chromatograph
Authors: Muradi M , Luchkin A G , Morozov G S , Fayzrakhmanov I A 
Published: October 2019

Abstract
In this paper, we consider a method of protecting the surface of the components of a gas analytical system from corrosion and adsorption of sulfur-containing compounds. To solve this problem in the oil and gas industry, in particular in industrial analytical equipment, silicon coatings are used that are inert with respect to the measured substances. Based on the analysis, the regularity of the formation of films of silicon films obtained by plasma-chemical deposition (PECVD) on stainless steel products was investigated.
Information-measuring system for monitoring the location of underground gas pipelines on the basis of improved acoustic resonance method
Authors: Nazarychev S A , Gaponenko S O , Kondratiev A E , Shakurova R Z 
Published: October 2019

Abstract
Instrument established on the basis new method of detection hidden channels and gas pipelines, made of both metal and non-metallic materials. For the operation of the information-measuring complex was developed and created soft-ware and hardware. Laboratory and in-situ studies have been conducted to confirm the performance of the proposed technical solution.
Increasing the capillary of fiberglass under the application of a relief coating in the low-pressure radio-frequency induction discharge
Authors: Skidchenko E A , Voznesensky E F , Sysoev V A , Lutfullina G G , Karnouhov A E , Karimullin I I , Sitarsky S K 
Published: October 2019

Abstract
the article presents the results of experimental studies of the effect of low-pressure radio-frequency induction discharge on the glassfiber capillarity indexes after the formation of a functional microrelief of SiO2 particles on the surface of fiberglass.
Mathematical modelling of turbulent gas flow with particles based on eulerian approach
Authors: Gubaidullin D A , Snigerev B A 
Published: October 2019

AbstractIn Eulerian variables the mathematical model for calculating the hydrodynamic and thermal parameters of the dispersed mixture are presented. The mathematical model is based on the use of Eulerian description of mass conservation, the amount of motion for liquid and solid, recorded in the framework of the theory of interacting continuums. The turbulent characteristics of the gas are calculated using a modified transport model of the Reynolds stress tensor components, taking into account the presence of solid phase in the medium. The model allows to investigate the effect of non-isotropy of turbulent fluctuations of particle velocities, the ratio of the thermal properties of the particle material and the carrier gas on the intensity of momentum, heat and mass transfer in the dispersed phase.
Electric arc method for synthesis of silicon nanotubes
Authors: Timerkaev B A , Shakirov B R , Petrova O A , Feltsinger V S 
Published: October 2019

Abstract
This paper proposes a method for creating silicon nanotubes in electric arc plasma, by evaporating the anode material and collection it on the cathode. During the experiments, various types of power sources were tested. Silicon nanotubes of complex configuration in the form of a straight stem with cylindrical branch and single-wall curved nanotubes were obtained. The obtained nanotubes will be able to find further application in light-emittingdiodes, lithium-ion batteries, and photovoltaics.
Electric arc synthesis of germanium nanotubes
Authors: Timerkaev B A , Skvortsov S V , Feltsinger V S , Shakirov B R 
Published: October 2019

Abstract
This paper describes the experimental setup and outlines the original methodology for conducting an experiment on growing germanium nanostructures. The obtained samples were examined with an electron microscope. It is shown that this technique allows one to grow both germanium nanotubes and germanium.
Development of plasma reactor design for synthesis of copper nanoparticles using multi-scale simulation
Authors: Fairushin I.I. , Saifutdinov A.I. , Sofronitskiy A.O. , Timerkaev B.A. , Dautov G.Yu. 
Published: October 2019

Abstract
On the basis of the hybrid hydrodynamic model for the gas discharge, numerical experiments were performed. The main parameters of the electric discharge of a direct current with copper cathode and anode were obtained. The obtained data were used as the main conditions for molecular-dynamics simulations of the copper vapor nucleation process in the argon. The results of the simulation formed the basis for the development of an experimental setup for the plasma synthesis of copper nanoparticles.
Mathematical modeling of deposition process of charged polymeric particles on moving surface
Authors: Fedyaev V L , Khaliulin V I 
Published: October 2019

Abstract
The deposition of charged polymeric particles in the gravitational and electrostatic fields on a moving surface is considered. A mathematical model is proposed, as a result of a number of simplifications analytical solutions are found. The rational design parameters of the installation and the technological modes of its operation are determined.
The influence of plasma power with a liquid electrode on the microhardness of gray cast iron
Authors: Khafizov A A , Shakirov Yu I , Valiev R I , Valiev R A 
Published: October 2019

Abstract
The effect of a plasma jet in an installation with an electrolytic cathode on the structure and properties of gray iron has been investigated. The dependences of the sizes of the zone of plasma treatment influence, the average diameter of dendrites and microhardness on the plasma power in the range of 2 to 6 kW have been determined. It has been established that as the plasma jet power increases, the volume of the reflow zone and the size of the grains of its structure increase, while the microhardness of the treated cast iron decreases.
Study of aerosol behavior under resonant vibrations in the vicinity of an open end of a pipe
Authors: Gubaidullin D A , Zaripov R G , Tkachenko L A , Shaidullin L R 
Published: October 2019

Annotation
The aerosol movement at an open end of a pipe at the resonant frequency was experimentally studied. The aerosol flow in an external wave field was visualized. The numerical value of the Rayleigh correction for an open end of an experimental plant was obtained. A good agreement between the numerical and experimental values was demonstrated.
Modeling of the influence of non-stationary waves in three-component medium in the formation of a plasma jet
Authors: Sharifullin S N , Yu Zhachkin S , Trifonov G I 
Published: October 2019

Abstract
This article discusses the mathematical description of the physical processes of transformation of composite substances of a plasma jet. A mathematical model describing the propagation of elastic waves in a three-component medium was developed for the prediction and planning of the use of plasma deposition technology, in particular in the study of the kinematic characteristics of the plasma flow. Also in the course of mathematical modeling the table of coefficients of compressibility of liquid (plasma jet) and gas and velocities of longitudinal and transverse elastic waves is obtained. Graphs of the velocity of propagation of longitudinal and transverse waves in the plasma coating material on its physical and mechanical characteristics-compressibility coefficients are plotted.
Properties of coatings formed by plasma electrolytic oxidation on plastically deformed aluminum alloy AO3-7
Authors: Kolomeichenko A V , Sharifullin S N , Logachev V N , Kuznetsov Yu A , Kravchenko I N , Baranov Yu N 
Published: October 2019

Abstract
The article presents the research results of the influence of electrolyte composition and plasma electrolyte oxidation (PEO) modes on microhardness and wear resistance of coating formed on a bush of the gear type pump HШ-У, which is reconditioned by plastic deformation.
Investigation of parameters of low-temperature gas discharge plasma with liquid electrodes upon receipt of metal powder
Authors: Kashapov R N , Kashapov L N , Kashapov N F 
Published: October 2019

Abstract
Selective laser melting technologies are widely used in various industries and medicine. A gradual increase in the volume of manufactured products requires the creation of new cheap methods for producing metal powders. One of the new methods for producing powders is the plasma-electrolyte method. A feature of this method is the use of gas with liquid electrodes, which allows you to get a metal powder and quickly cool it in a liquid. The question of the influence of discharge parameters on the process of metal atomization remains open. The paper studies gas discharges with liquid electrodes under the conditions of atomization of a metal anode. A gas discharge between a liquid electrolyte and a metal electrode was studied experimentally in the voltage range 300 - 1000 V. Solutions of sodium chloride in distilled water were used as the electrolyte. The conditions are established under which a stable discharge column is formed and metal powder is sprayed. The regularities of the change in the CVC of the discharge depending on the interelectrode distance are determined. A splitting of the spectral lines of the yellow sodium doublet was found in the emission spectrum of a gas discharge.
Investigation of CoCr micropowder obtaining process in gas discharge with liquid electrodes
Authors: Kashapov R N , Kashapov L N , Kashapov N F 
Published: October 2019

Abstract
Plasma technologies have a wide range of applications: from agriculture and the food industry to energy industry. Such widespread use is due to the properties of plasma and a wide variety of methods for its preparation. Also, in metallurgy, plasma is used as a source of thermal energy, capable of producing metal melting in a short time. The paper studies the process of obtaining a metal powder from a CoCr alloy in a gas discharge with liquid electrodes. The regularities describing the relationship between discharge parameters and properties of the powders obtained. The resulting powders can be used in Selective Laser Melting technology.
Research on International Power Network Construction in Central-Asia
Authors: Li Juan , Sun Yang , Zhou Hong-lian , Yang Nan , Liu Ling-shuang , Zhou Er-biao , Li Zhong-zheng , Yuan Tie-jiang 
Published: October 2019

Abstract
As part of the Belt and Road Initiative, China promises to provide its abandoned renewable energies in Xinjiang for solving the power shortage problem in Central-Asia countries. This brings a great chance for energy investment and cooperation in power grid construction between China and Central-Asia countries. This paper analyses the power structure and energy institutions in 6 Central-Asia countries and predicts its energy potential and power requirement based on its GDP growth rate. A power grid connection plan is further proposed based on the predictions. This power grid construction would benefit all the countries involved and boost area economic growth for years.
A Device for Online Monitoring of the Measurement Accuracy of Digital Electric Energy Meter
Authors: Li Yuchun , Huang Dongdong , Shi Xudong , Zhan Fajun , Liu Xiaojian , Ge Leijiao 
Published: October 2019

Abstract
The application of smart substation technology has brought many opportunities to the power industry, but also caused many new problems and challenges. At present, with the large-scale promotion of intelligent substation based on IEC61850, there are many engineering problems which will not appear in IEC61850 protocol and are closely related to practical application. A device for online detection of electrical error is designed in the paper for the measurement deviation problem of “IEC61850-9-2 input digital power meter” in the new generation of intelligent substation. The characteristic of the device is that once the meter measurement error is detected within the set time interval, it will record the voltage and current waveform data within the interval in real time for error analysis and problem finding.
An improved particle swarm optimization algorithm and its application on distribution generation accessing to distribution network
Authors: Wei Zheng , Yong Zhi , Chen Liang , Lei Gao , Wenpei Zhu 
Published: October 2019

Abstract
To seek the optimal way of distributed generation(DG) accessing to the distribution network(DN) is becoming a hot topic in the research of modern smart grid. Aims to the drawbacks of imbalance and the sluggish convergence speed of some traditional intelligent algorithms, such as, particle swarm optimization algorithm, when it is used to solve DG node optimal assignment, an improved particle swarm optimization algorithm with contraction factor based on the hybrid simulated annealing algorithm is proposed. Using the improved method, the minimum power loss can be guaranteed when the DGs are accessed to the DN. The influence of the DN on the grid voltage and the network loss of the distribution of the distributed generation are analyzed. The optimization model of the active power loss minimization is derived. The simulation results are used to verify that the improved algorithm is advantageous because of its a balanced global search ability as well as fast convergence speed to assign the different DG access nodes optimally.
Solar parabolic trough thermal energy output forecasting based on K-Nearest Neighbors approach
Authors: Jamaludin’ Jafferi , Ohmori Hiromitsu 
Published: October 2019

Abstract
Solar thermal output forecasting that is derived from the solar irradiance forecasting, is very much exposed to high forecasting error. This is because of the heavy dependence on the solar irradiance prediction accuracy that could be very low in certain situations owing to the high uncertainty in weather conditions. By considering this fact, this paper proposes to develop a solar thermal output forecasting model using measured solar irradiance data, instead of the predicted data. The proposed model applies K-Nearest Neighbors (K-NN) algorithm to generate 24-hour ahead forecasting data on solar thermal output from a solar parabolic trough system For the purpose of illustrating the forecasting model performance, Kuala Lumpur, Malaysia is used as a case study, with PolyTrough 1800 model is selected as the solar parabolic trough collector under investigation. Simulation has been carried out using Matlab software to verify the effectiveness of the proposed K-NN-based forecasting model. The results show that the model is able to produce acceptable results in certain conditions.
Research on co-integration and causal relationship between China’s energy consumption and economic growth
Authors: Huang Y S , Shi M S , Yang Y Q 
Published: October 2019

Abstract
This paper selects the annual data of China’s total energy consumption and GDP from 1978 to 2016 as a research sample, and uses Eviews to perform unit root test, cointegration test, Engle-Grange causality test and VEC model on GDP and energy consumption time series. The results show that the first-order difference between GDP and total energy consumption is stable at a significant level of 10%; GDP, total energy consumption and sub-category energy consumption have a co-integration relationship at a significant level of 5%; Engle-Grange causality test results show that at the 5% significant level, the causal relationship between GDP and energy consumption is obvious, and there is a two-way Granger causality.
Method and development trend of corrosion state prediction of grounding grid
Authors: Huang H , Liu Y C , Xing Y , Wu J R , Mao X Y , Ma X H , Sun H B 
Published: October 2019

Abstract
With the development of modern power grids to ultra-high voltage, large capacity and long-distance, the grounding short-circuit current of power systems is getting larger and larger, and higher requirements are put forward for the safe and stable operation of grounding systems.The importance of studying the corrosion status of grounding grids is even more prominent. In this paper, from both static and dynamic aspects, the corrosion state prediction methods of the grounding grid are discussed. And the prediction technology is prospected, it is pointed out that the development of a device combining detection and prediction techniques will fill the gap in the international arena. It can not only provide effective guidance for corrosion protection of grounding grids, but also can be applied to other fields.
Evolution of entanglement in quantum neural network
Authors: Korkmaz Ufuk , Türkpençe Deniz , Akinci Tahir Çetin , Şeker Serhat 
Published: October 2019

Abstract
This study concerns with the evolution of entanglement in a quantum neural network (QNN) model that is locally in contact with data environments. As a valuable resource, duration of entanglement in quantum systems is extremely important. Therefore, the effect of various initial states on the occurrence or decay of entanglement are examined in the presence of information reservoirs. In this study, central spin model was investigated as a quantum version of neural networks inspired by biological models. The architecture of the model is based on a central spin system with two nodes where the nodes are coupled to independent spin baths. Numerical results show that initial state preparation has a profound effect on the fate of entanglement. The results show that the entanglement lifetime can be adjusted by engineering the reservoir states as well as the initial states of the system of interest. The results can be used to improve the performance of the formation or distribution of entanglement in realistic communication network states.