bluuebunny/crossref_metadata_2025_split huggingface dataset:
A novel integrated pyrolysis-gasification technology for improving quality of bio-gases from multisource solid wastes
Authors: Li Aishu , Hu Song , Han Hengda , Huang Haizhou , Guo Tingting , Xiang Jun , Wang Yi 
Published: December 2020

Abstract
Recovery and utilization of municipal solid waste (MSW) into syngas has already attracted the attention of researchers for years. However, until now the MSW such as sewage sludge and plastics still lack a way of industrial utilization due to the relatively low transformation efficiency or low gas quality. Accordingly, a novel integrated pyrolysis-gasification technology is proposed in this study, in which the volatiles and steam released from the pyrolysis of sewage sludge at 450°C take part in the gasification of plastic at 600 °C-800°C, taking advantage of high-water content of sludge to produce high quality bio-gas. At the same time, the synergistic effect between sludge pyrolysis and plastic gasification was explored by product analysis. Compared to pyrolysis or gasification alone, the aromatic degree of the bio-oil obtained by the integrated technology under pyrolysis at 450°C and gasification at 700°C weakens. Whereas, the aromatic degree of the bio-oil obtained at 450°C (pyrolysis) and 800°C (gasification) deepens, and the yield of C2Hy in the bio-gas improves markedly. The higher temperature promotes the decomposition and condensation of macromolecules and also strengthens the influence of volatiles and steam from sludge pyrolysis on the structural fracture of plastics during gasification to some extent. In conclusion, this technology can significantly improve bio-gas yield and quality at high temperature.
Energy and Mineral Resources Mining Contradictions in Coal-Uranium Coexisting Basin and the Countermeasure Suggestions
Authors: Wang Wenxu , Wang Wei , Yan Pengbing , Zhao Jinfeng 
Published: December 2020

Abstract
It is common that sandstone-type uranium deposits co-exist with coal and oil & gas in the same sedimentary basin, and the output of uranium deposits is closely related to the coal seam or oil & gas reservoir. An “upper uranium and lower coal” ore-bearing pattern is formed in Ordos Basin and Erlian Basin in China. Due to the absence of unified resource mining plan and policy coordination mechanism, the coal-uranium resource mining contradictions have become increasingly prominent in coal-uranium coexisting areas in recent years. It is difficult to realize in-situ leaching exploitation of the coal-uranium resources in the Ordos coal-uranium coexisting area because of disorderly mineral resource mining, radioactive contamination risks are posed to the ambient environment of the mining area, and consequently, coal mine enterprises have to stop work and production, which gives rise to huge economic loss. Given this, the current resource contradictions in this area and their influence paths were comprehensively expounded through a systematic survey on a coal-uranium superposition area, and then the corresponding countermeasure suggestions were proposed.
Numerical analysis of effect of phase change thermal storage layer and annular fins on thermal performance of linear concentrating solar evacuated tubular collector
Authors: Wang Hua , Jiang Yongjie , Zhang Xinmin , Pang Shusheng , Mei Yanyang 
Published: December 2020

Abstract
The effects of Phase Change Thermal Storage Layer (PCTSL) and annular fins on the thermal performance of linear concentrating solar evacuated tubular collector are numerically studied. July 15 and January 15 with relatively longer and shorter solar radiation durations are selected as the dates to simulate. Three types of linear concentrating solar evacuated tubular collectors with length of 400 mm are established, which are the traditional collector, the collector with PCTSL but without annular fins, and with PCTSL and annular fins. The results show that the maximum outlet transformer oil temperature of with PCTSL but without annular fins is 5.9 °C-10.7 °C lower than the traditional one, but the outlet oil temperature change rate of the collector with PCTSL is slow; the maximum temperature duration time of the collector with PCTSL but without annular fins is 2-2.5 hours longer than that of the traditional conditions; adding fins in PCTSL makes the outlet oil temperature reach the peak more than 30 minutes earlier. The PCTSL and annular fins studied in this paper have greatly improved the thermal performance of solar collectors and have broad application prospects.
Photovoltaic power generation data filling model based on tensor decomposition
Authors: Xie Xiangying , Liu Hu , Ma Xiaoguang , Ma Dayan , Luo Xin 
Published: December 2020

Abstract
With the development of new energy and the increase in demand, photovoltaic power generation has received more and more attention. However, due to the susceptibility of photovoltaic power generation to the influence of weather factors, especially the influence of solar irradiation, it is intermittent and fluctuating. Understanding the power generation data of a PV plant has a great effect on the subsequent photovoltaic power generation planning and photovoltaic power plant situation assessment. However, these data are often incompletely recorded due to frequent communication problems or equipment failures. Most current studies focus on photovoltaic power generation predictions, it is still a challenge to speculate the missing data around photovoltaic power plants. In this paper, a context-sensitive tensor decomposition model is proposed to intelligently fill the missing power generation entries. The experimental results show that our model can effectively fill missing data and obtain good results.
Effect of Regulated Deficit Irrigation on Potato under-Mulched Drip Irrigation
Authors: Zhou Sanli , Li Fuqiang , Zhang Hengjia 
Published: December 2020

Abstract
In order to study the effects of water deficit on potato under-mulched drip irrigation, the paper interpreted the effects of water deficit at different growth stages on growth characteristics, yield, quality and the water use of potato under-mulched drip irrigation. The results showed that mild water deficit treatment in potato tuber forming period can effectively reduce excessive plant branches and contribute to the increase of crop yield. Meanwhile, the total sugar content, protein and starch content can be improved, and the content of organic acids was significantly reduced, which is conducive to the improvement of potato quality. Tuber growth period is a period with large water demand for crops, so that enough moisture should be guaranteed during this period. Finally, the current problems in potato planting were analysed, and the future research directions were prospected.
Cloning and functional analysis of HMGR gene in Ligularia fischeri
Authors: Du Juan , Hu Wenzhong , Yang Dongsheng , Meng Fanxin , Li Yanfang 
Published: December 2020

Abstract
3-hydroxy-3-methylglutaryl CoA reductase cDNA genes have been successfully isolated from Ligularia fischeri and named as HMGR with 2031bp (Gen Bank accession number: DQ916106), which encodes a predicted polypeptide of 579 amino acids. The pBSHMGR gene vector was successfully constructed. The HMGR gene is over expressed through agrobacterium transformation. Southern and Northern analyses of transgenic plants showed that the HMGR gene was integrated into the Ligularia fischeri genome and expressed at the transcriptional level. HPLC analysis showed that the Shionone content in transgenic roots and stems of Ligularia fischeri were increased 16.67% and 12.25% as compared with the control.
Design and preparation of Ag/AgCl/NH2-MIL-101 (Fe) ternary composite photocatalysts with visible light application prospects
Authors: Xu Chunhua 
Published: December 2020

Abstract
In this work, Ag/AgCl/NH2-MIL-101 (Fe) composite photocatalysts were designed and constructed by an in-situ UV reduction method. Simultaneously, the characterization of the sample mainly included X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The sample displayed excellent performance and stability of water, air and ultraviolet light in the preparation process. The formation mechanism was proposed based on the cooperation of the reaction between Ag+ and Cl- in NH2-MIL-101 (Fe) and vluraviolet reduction. The Electron Spin Resonance (ESR) results demonstrated that the main active oxygen species were •OH and •O2
- in the photocatalytic process. This work would provide a novel strategy for synthesizing highly efficient photocatalysts in the visible light field.
Ways to improve the energy efficiency of renewable energy sources
Authors: Petrov Yu S , Muzaev A K , Maskov S P 
Published: December 2020

Abstract
The ways of increasing the energy efficiency of the use of renewable energy sources are considered. The descriptions of universal energy complexes that simultaneously use converters of various types: solar rays, wind flows into electrical energy, patented at SKGMI (GTU) are given. The prospect of using renewable energy sources for autonomous power supply of objects in mountainous regions has been substantiated.
Ultrasonic multipath monitoring of turbulent gas flows: pulse signals correlation processing
Authors: Bychkova I Y , Bychkov A V , Slavutskii L A , Grigoriev V G , Kitaev A I 
Published: December 2020

Abstract
The article proposes digital phase modulation and correlation processing of pulsed ultrasonic signals for the turbulent gas flows monitoring. Estimates of errors in measuring the relative time delay of ultrasonic pulses during multipath propagation and their interference in the receiver were made. The data obtained from the experiment show that the relative pulse delay measured in a turbulent gas flow has a resolution exceeding tenths of the carrier frequency period. As an example the possibilities of turbulence’s quantitative control the air flow boundaries of a fan are shown. The perspectives to use the developed software and hardware in flow meters and other ultrasonic control and measuring devices are discussed.
Sintering in a microwave field is a promising ecological technology for producing nanostructured ceramic composites from natural raw materials
Authors: Zhenzhurist I A 
Published: December 2020

Abstract
The article provides literature data on sintering inorganic substances in an electromagnetic field, shows the prospects for research in this direction. The results of sintering samples from masses based on natural compositions: marl, low-melting loam and diatomite with carbonate additives in a microwave oven are considered. The possibility of sintering in a microwave field of natural raw materials, which is traditional for the production of many fired ceramic products, has been established. The phase compositions of the fired materials have been determined. The composition of sintered compositions, consisting of nanoscale phases, has been established. The effect on the sintering process of the composition of the raw material composition from the carbonate component, diatomite and the addition of NaCl salt is shown. Samples from a mass based on marl, with the addition of diatomite and NaCl salt show high quality and increased strength of the samples, the presence of a large percentage of the amorphous phase in the fired sample, and a uniform microstructure of the material. Specimens from masses based on clay with the addition of chalk and NaCl salt after firing in the microwave field showed a significant increase in strength.
Dynamic mode of the mathematical model of an electric multipole with memresistive branches in conditions of interval uncertainty
Authors: Bondarev A V , Efanov V N 
Published: December 2020

Abstract
This article discusses a method for obtaining a mathematical model of an electric multipole with memresistive branches in finite parameter increments for a large signal mode in time domain calculation when calculating a direct current based on a generalized model obtained earlier. A computational algorithm for calculating nanoelectronic circuits based on methods of interval arithmetic is also given.
Formation of a commodity fuel portfolio of Kuzbass on the basis of coal preparation waste
Authors: Chernikova O P , Strekalova S A , Zhdanova N G , Grinkevich O V 
Published: December 2020

Abstract
The Kemerovo Region development strategy until 2035, updated in September 2020, is a forecast of the global technological leadership of Kuzbass, diversification of transport communications with other regions and states, adaptation to the conditions of the 2019 coal industry crisis. To solve these strategic tasks, coal mining and processing enterprises must balance their fuel portfolio and look for new ways to market their products, including the possibility of using production waste. Within the framework of the research carried out by the team of authors: the ecological, technological and economic advantages of using a coal-water suspension as a fuel component have been systematized; identified potential areas of its application; an analysis of the world experience of transporting coal through pipelines was carried out; a proposal was formulated for a project for the construction of the Kuzbass-Ural pipeline for the supply of coal-water fuel to Western Siberia and the Eastern Urals, and the advantages and disadvantages of coal hydrotransportation in comparison with its railroad delivery were identified.
Distillation of vacuum gas oil in a column with new packings
Authors: Farakhov M I , Laptev A G , Farakhov T M , Akhmitshin A A 
Published: December 2020

AbstractA description of the technological scheme of the unit for separating the fraction of vacuum gas oil (FVG) is given, where the process of separation of heavy gas oil from FVG takes place in the column. The main focus of the work is on the design of a distillation column using the new structured roll packing. The fractional composition of the feedstock, by-product, light gas oil, and the target product, which is heavy gas oil, is presented. Requirements for the design of a structured packing in terms of pressure drop and separation efficiency are formulated. A structured roll packing with corrugations and rough surface having specific surface area of 300 m2/m3is chosen. The diagram and photograph of the packing are presented. Comparative values of specific pressure drop for several structured packings are given. It is shown that the selected packing provides the lowest hydraulic resistance. For mathematical modeling and calculation of the multicomponent distillation process, a system of mass transfer equations with interfacial bulk sources of transfer components is used. In this case, for the conditional component, a fraction at the specified boiling points is used. As a result of solving the system of equations with boundary conditions, the profiles of the fractions along the height of the packed bed are found and the structural characteristics of the structured packing are selected that meet the requirements for the top and bottom of the column. Calculations of a vacuum distillation column with this packing are carried out and it is found that the bed height of 6 meters is sufficient to meet the requirements for the fractional composition of the upper and lower products, while meeting the pressure drop requirements. The developed scientific and technical solutions have been implemented at a refinery in Malaysia and correspond to the technical specifications for the design of the unit.
Features of the formation of environmental protection mechanisms during the operation of objects of the electric power complex
Authors: Provodina E V , Krasovskaya O Yu , Gerasimova T A , Predeus Yu V , Tserpento D P 
Published: December 2020

Abstract
Based on the analysis of the methods of greenhouse gas stations used for environmental pollution, their systematization into a single mechanism for ensuring environmental safety at various levels is presented: from the state level to the technological system. The content of the constructed mechanism for substantiating the need for the interdependent functioning of its elements. The peculiarity of the proposed mechanism is that it contains elements that ensure the safety of the environment, guaranteeing the means and methods of implementing environmental protection issues.
First steps of Renewable Technology in Russia
Authors: Kulkova O D 
Published: December 2020

Abstract
The article gives a brief analysis of some of the benefits provided by Renewable Technology, the ways in which they differ from traditional sources of electrical energy, an overview of the regulatory bodies and the general rules that govern the wholesale electricity market in Russia, the functioning of generation capacity of trading market. Then the mechanisms that exist to encourage market participants to accurately predict supply and demand will be outlined below. Finally, a short description of some other measures that maybe taken in the future to support the growth of the Russian Renewable Energy are to be examined.
Formation of a system for achieving sustainable development of the electric power complex
Authors: Gibadullin A A 
Published: December 2020

Abstract
The article analyzes the influence of various factors on the electric power complex. The study showed that the internal factors associated with the condition of the equipment in operation have the greatest influence. The analyzed indicators indicate that during the periods under consideration, there are practically no changes associated with a decrease or increase in the number of accidents at stations and networks. At the end of the work, recommendations were presented to ensure the stability of the electric power complex, which should include long-term and short-term plans.
Trends in the development of the Smart home system and its integration into modern society
Authors: Deyanov E M , Kharitonova N A 
Published: December 2020

Abstract
The stages of development of smart home systems and integration of these systems into the city infrastructure are considered. The main advantages and disadvantages of these solutions are identified, and problems associated with their installation and use are identified. The research on the volume of markets and target audience is analyzed, and the trends of recent years in the areas of both "smart home" and "smart city in General" are considered. Priority directions of development of the entire field of solutions are indicated. Specific examples of using smart systems in different configurations and with different functions are considered. Conclusions are drawn about the current situation on the market, as well as about the future prospects for implementing smart home systems in the lives of users.
Development of liquefied natural gas transport and creation of energy infrastructure for its functioning in Russia
Authors: Miagkov N A , Kharitonova N A 
Published: December 2020

Abstract
This is as a monitoring result of the actual scientific literature in the field of using liquefied natural gas as a motor fuel. The ecological and technological advantages of using liquefied natural gas in this area are considered. Based on this, conclusions are drawn about the competitiveness of liquefied natural gas relative to other types of motor fuel. Analyzed the current energy strategy of the Government of the Russian Federation in the field of promoting and popularization of liquefied natural gas as a motor fuel and the development of energy and filling infrastructure. Based on the identified shortcomings of the strategy, an alternative option is proposed that relies on local gas filling systems, mini-gas liquefaction plants, and mobile gas stations. An assessment of the technical and economic parameters of the project for the creation of such an infrastructure was carried out because of which a conclusion was made about its overall efficiency. Options for implementing the concept of alternative development of the energy and refuelling infrastructure of liquefied natural gas and its integration into the state energy policy are proposed.
Assessment of resources and development factors of the scientific and educational subsystem
Authors: Tomshinskaya I N , Ivanova N V , Vinogradova E B 
Published: December 2020

Abstract
This paper touches upon the scientific and educational subsystem, since the formation and development of this particular subsystem are demanded by the conditions of post-industrial transformations, the process of increased spatial competition. This need applied to the economy of a megalopolis is reinforced by a contradictory combination of relatively high investment attractiveness, the presence of several modern growth points, on the one hand, and the “obsolescence” of competencies that the human factor has, on the other hand. Significant problems in the development of the scientific and educational subsystem of St. Petersburg are considered in the paper. The individual components of the desired subsystem with the identification of strengths and weaknesses are analyzed. An approach to the analysis of the development factors of a promising subsystem of a scientific and educational profile is proposed: representing the integral result of this subsystem in the space-time continuum of the regional economy as a production function. The authors see the direction of further research in the allocation of groups of factors-arguments of the production function.
Analyzing the main casting defects and their mold parameters
Authors: Kozlova A T 
Published: December 2020

Abstract
At present, the manufacturer and the buyer find themselves in the market, and consumers pay great attention to the price and quality of the product. This means that the fate of the manufacturer depends on it. Casting gets closer and closer to the part, and a number of surfaces are the ones of the future part. Requirements for roughness, design, the competitiveness of the part increase, and the question of the quality and cost of the product is raised. All this determines the relevance of the chosen topic. In the foundry, the most popular technology for printing sand synthesis molds, due to inexpensive materials and quality of products. Casting quality directly depends on the quality of the synthesis molds; therefore, constant monitoring of the parameters of the sand molds is required. [1-3]