bluuebunny/crossref_metadata_2025_split huggingface dataset:
Applicability of an ‘uptake wave’ energy transition concept in Indian households
Authors: Neto-Bradley A P , Choudhary R , Bazaz A B 
Published: August 2019

Abstract
Reliable, secure, and affordable energy services are essential to ensuring sustainable economic and social development in the rapidly growing cities of the Global South, yet in India over 30 percent of urban households are still reliant on traditional fuels such as biomass and kerosene for some portion of their energy needs. Understanding the factors that influence energy transitions at a household level, is essential for successful strategies to promote the uptake of cleaner fuels and deliver associated socio-economic benefits. Such fast-growing cities often display intra-urban inequalities of considerable magnitude which can condition individual access to resources and impact the effectiveness of energy provision strategies for individual city districts. In this paper we will use the results of a survey of 500 households in Bangalore, India and explore how this data compares with the ‘wave concept’ model of energy transition. This ‘wave concept’ view of energy transitions focuses on appliance ownership as a proxy for energy services and conceptualises the uptake of appliances as a wave with early and late adopters rather than an income-based step change, and as a result better accounts for the role of non-income factors. The wards targeted by the survey cover a range of low-income ward typologies characterised by factors including income, livelihoods, building construction, socio-cultural factors, access to fuels, and reliability of supply. Validating an appropriate model for the uptake of new energy technologies and fuels in households, can better inform policy makers, entrepreneurs, and engineers on the influence of non-income barriers to energy transition across different districts of a city. By understanding how households use energy, and what limits the adoption of more efficient technologies at a local level, city planners and engineers can develop targeted sustainable strategies for adoption of cleaner more efficient fuels and appliances in households.
Rural Household Energy Use and Thermal Environment in Three Climatic Regions of Nepal
Authors: Tika Ram Pokharel , Hom Bahadur Rijal , Shukuya Masanori 
Published: August 2019

Abstract
Nepal is a mountainous country with low energy use so far and its climatic patterns remarkably differ from one place to another due to its geographical variation. In the north summer is cool and winter severe, while in the south summer is tropical and winter is mild. Indoor thermal environment and household energy use of residential buildings are in general very much associated so that there have been guide a lot of research; however, there has not been sufficient number of such studies focusing on Nepal. In this study, we aim to analyze the current situation of household energy use and indoor thermal environment of residential buildings in three different ecological regions of Nepal. This study was carried out in mountain, hill and terai regions representing cold, temperate and sub-tropical climate in Nepal from 21st December, 2017 to 20th January, 2018. Indoor and outdoor air temperature and humidity were measured by electronic sensors with the help of data logger for every 10-minute interval from 5 households from each region. The mass of firewood used was also measured at those houses. Household energy-use data of 516 houses were collected by the method of questionnaire survey. We found that mean indoor temperature was 3.6°C, 9.4°C and 19.0°C in cold, temperate and sub-tropical regions respectively. Based on this field study, we concluded that firewood is the primary source of household energy for cooking. The present finding suggests that an intensive and extensive improvements of the indoor thermal environment together with rationalization of energy use must be important especially for winter seasons.
Development of Tb-Dy-Fe Detection Transducer
Authors: Sun Wen , Sun Jie , Xu Kehua 
Published: August 2019

Abstract
The erbium-dysprosium-iron magnetostrictive alloy is used as the acoustic generator of ultrasonic detection transducer. According to the characteristics of the magnetostrictive alloy, the alternating magnetic field is generated by the altering current of the coil around the magnetostrictive rod the circuit system. As the magnetic field changes, the magnetostrictive rod will produce stretching deformation along the axial direction, which drive the radiation plate vibrate and generate ultrasonic wave. The TbDy-Fe detection transducer has the advantages of simple structure, fast response and large output power so that can be used in various field of industrial detection.
Research on Evaluation of Coal Enterprises Sustainable Development
Authors: Liu Na 
Published: August 2019

Abstract
Based on AHP method, this paper built the evaluation model of coal mine sustainable development and calculated weight of each indicator, the essay aims at providing an effective method for the scientific development of coal mine. In addition, on the basis of the evaluation index system of sustainable development, the fuzzy comprehensive evaluation method was used to comprehensively evaluate four major coal mines of Shen Yang Coal Industry Group.
Industrial Application Research of Portable Video Recorder based on LabVIEW
Authors: Tao Changxing , Chang Xincai , Guan Jishi 
Published: August 2019

Abstract
In this paper, a portable test recorder is designed and manufactured. As an open test system, the recorder can be self-configuring according to the requirements of measurement tasks to realize the acquisition, analysis and processing of various equipment signals, to meet the needs of high-range, high-precision and multi-channel measurement. At the same time, the recorder has the advantages of compact, portable, wide application range, friendly man-machine. Interactive interface and flexible operation can meet the complex test environment in industrial field. The recorder has been applied to the test of 9020 series plates in a nuclear power plant in China. It provides accurate measurement basis for plate detection and solves the problem of high range and high precision of 9020 series plates in a nuclear power plant.
Construction and simulation of explosion-proof electric proportional pump for mine
Authors: Shen Wei , Wang Qingyun 
Published: August 2019

Abstract
In view of the contradiction between explosion-proof and electric proportional speed regulation, a kind of explosion-proof electric proportional hydraulic pump is developed, which can be used in underground roadways by taking 90 series hydraulic variable pump as a model and carrying out appropriate modification and explosion-proof treatment of its speed regulation system. The speed regulation characteristics of explosion-proof electric proportional hydraulic pump are simulated and analyzed by AMESim software. The feasibility of the scheme is verified by comparing the experimental results with the simulation results.
Effects of Trace Elements on the Properties of Copper from First-principles Calculations
Authors: Zhong Mingjun , Peng Cheng , Huang Fuxiang , Liang Shuang , Wu Baoan , Tang Huiyi , Luo Weifan 
Published: August 2019

Abstract
The effects of X elements (Ag, Ni, Si, Zr, Mg, Al and Zn) doping with amount of 0.926 at% on the structural, mechanical and thermodynamic properties, as well as the electrical properties of Cu were calculated systematically using a first-principles density functional theory (DFT). The calculated formation enthalpy and binding energy indicate that all the Cu107X alloys can be formed and are thermodynamic stable. The B/G values of Cu dilute solutions are between 2.1 and 3.1, both are greater than 1.75, the Poisson’s ratios ν are between 0.295 and 0.355, which means that all of Cu107X are plastic materials. Cu107Si and Cu107Zn had the larger Vickers hardness, the value of which were 6.18GPa, 5.97GPa, respectively. By means of molecular dynamics and the Kubo-Green-Wood formula, the electrical conductivities of Cu108 and Cu107X were calculated, the results show that all elements doping will reduce the conductivity of Cu, and the conductivity of Cu107Ag in Cu107X alloys is the largest, and its value is 3.56*107S/m.
Study on construction schedule optimization of bored pile based on genetic algorithm
Authors: Hu Hesong , Ji Xuan , Liang Huqing 
Published: August 2019

Abstract
The site construction management of traditional filling pile has some disadvantages such as redundancy of data, difficulty in finding data, low working efficiency and poor timeliness. Thus, combined with the actual needs of filling pile construction management, based on the Java language, the mobile phone client of filling pile construction information management system was developed, and the mobile client system framework, operating process and functional framework were designed and illustrated. The software provided an advanced management method for the filling pile construction, it had great value to guarantee the construction progress and improve the information level of construction management.
Practice of Outburst Prevention Technology for Uncovering No.2 Coal Seam in Donger Return Air Shaft of Weijiadi Coal Mine
Authors: Zhang Jufeng , Xu Tai , Yang Fengfeng , Zheng Chao , Zhang Jianjiang , Miao Zaiquan 
Published: August 2019

Abstract
In Weijiadi Coal Mine, the No.2 coal seam is uncovered by the Donger return air shaft. According to the concept of “regional measures first, local measures supplement”, the measures are taken strictly in the outburst seam, the gas pressure P=0.2MPa and the gas content W=1.4729m3/t in the coal seam are determined by preconstruction prediction drilling, and there are no gas dynamic phenomena such as drilling jam and sticking in the drilling process. It is proved that there is no outburst danger, and then it is implemented according to the local “four in one” outburst prevention measures. The maximum gas pressure determined is 0.2 MPa in the working face, and the validity check is still no outburst danger. Finally, safety protection devices are installed in the working face to ensure the No.2 coal seam to be uncovered smoothly by return air shaft.
Increasing drilling speed in long horizontal intervals in Aktobe Kazakstan
Authors: Zhang Xiaoning , He Anle , Yan Jun , Shi Libao , He Zhenguo , Kong Lulin 
Published: August 2019

Abstract
The Aktobe project is at the east margin of the Pre-Caspian Basin, where horizontal well is mainly used to develop the low porosity and permeability layers. To improve production per well, the horizontal interval increased from +/-400m to +1000m. Due to complicated geological structure, variable boundary and thickness of target layers, the RSS was employed to improve the rate in layer. But the average ROP was just 2.36m/hr, and average footage was just 335m per bit due to high strength of the formation. To solve this problem, the wearing characteristic of PDC bits was analyzed. The BHA and table rotary speed were optimized on the basis of drilling pipe vibrating calculation. Thus, the drilling technology for hard and long horizontal interval, including high performance PDC bit, RSS, PDM, BHA with 1/2 stabilizer, has been worked out. The technology was used in 5 wells, of which 4 wells at 60 rpm, had stick-slip index of less than 80%, the drill bits out of the wells had few cutters broken by vibrating; 1 well had stick-slip index of higher than 80% at 70-80rpm, and the drill bits out of the well had many cutters broken by vibrating. Compared with Well H814, the horizontal section drilling time shortened from 22.5d to 9.6d, by 57.7%, ROP increased by 261.4%, and the footage increased by 195.5%. The optimized horizontal drilling technology for hard formation could provide reference for the drilling of similar hard formation, especially for the other oilfields in the Pre-Caspian Basin.
Test principle and measuring method of friction coefficient of drilling fluid lubrication tester
Authors: Wang Xiaojing 
Published: August 2019

Abstract
This paper introduces the test principle of the friction coefficient, and then introduces its measurement method, which provides a theoretical basis for the overall design of the tester. We propose the following scheme: design a set of DC pulse width modulation (PWM) servo control system with microprocessor as the control core. The whole system needs to detect four physical quantities: motor speed, motor armature current, excitation current and pressure. The current transformer is used to detect the armature current and excitation current of the motor, and the friction coefficient and film strength are converted by microprocessor to keep the excitation current constant. The speed sensor is used to detect the speed of the motor, the pressure sensor is used to detect the applied pressure, and the microprocessor is used to realize the automatic control of the speed.
Research on the development of innovative petroleum geological exploration technology
Authors: Bi Ergang 
Published: August 2019

Abstract
Petroleum resources are of great significance to the development of China’s economy. The petroleum geological exploration technology has undergone a long development, and the application of exploration technology has made great progress. With the continuous increase of mining intensity, the exploitation depth of oil is increasing and the difficulty coefficient is increasing, which poses more difficult challenges for petroleum geological exploration work. Therefore, the development of innovative petroleum geological exploration technology has very important strategic significance, which determines the future development direction of China’s petroleum industry. This paper will introduce China’s existing petroleum geological exploration technology, and introduce the direction of oil exploration technology development, and at the same time formulate relevant development strategies.
Risk Analysis of Debris Flow hazardsin Yanbian Prefecture Based on Information Quantity Method
Authors: Fang Jinpeng , Quan Hechun 
Published: August 2019

Abstract
Taking the Yanbian Prefecture as the study area, this paper selects 8 influencing factors: elevation, slope, slope direction, precipitation, river, lithology, fault and land use. Taking 163 debris flow points as sample data, information quantity method and GIS platform are introduced to calculate the information amount of each influence due to sub classification. The risk assessment and analysis of debris flow were carried out, and the risk assessment and analysis map of debris flow in Yanbian was drawn. The results show that the areas where the debris flow hazard is more dangerous are in good agreement with the historical debris flow, and the accuracy of the methods and factors used in this paper is verified.
Study on the magnetite genesis and metallogenic age in Chedu gold deposit, Bikou block
Authors: Wang Dequan , Deng Shengbo , Wang Yizhong 
Published: August 2019

Abstract
The Chedu gold deposite is located in the south rim of bikou terrane. It is the first BIF-type gold deposit in shaanxi province. Magnetite and quartz bands can be seen in the magnetite quartzite type gold ore. According to the electronic probe analysis results, we find that the ratio ofTFeO to oxide is from 98.90% to 99.87% and the levels of TiO2, MgO, A12O3 and MnO are low in single particle magnetite. It is suggested that the magnetite in gold ore is the cause of sedimentary metamorphism. In addition, a total of 22 of the 35 electronic probe analysis data implying that the magnetite was not visible. The maximum is 0.105%. Through the analysis of geochemical samples, the gold grade is proportional to the iron content.The isotope age of the Bikou group is between 764 and 1611 Ma. The indirect method proves that the Chedu magnetite quartzite gold deposit was formed in the Middle Proterozoic-Neoproterozoic.
Thermodynamic analysis of supercritical water gasification of oleic acid for hydrogen production
Authors: Yang Chuang , Wang Shuzhong 
Published: August 2019

Abstract
In this study, the equilibrium behaviour of palmitic acid in supercritical water gasification was investigated, using the Gibbs minimum free energy employed within the HSC. The effects of concentration, temperature, and pressure on gas production were studied. The model predictions have been validated by comparing the results with published literature under identical conditions, and the agreement is generally satisfying.
A Review of Multi-field Coupling Simulation of Wellbore and Heat Reservoir in Enhanced Geothermal System
Authors: Shan Dandan , Yan Tie , Li Wei , Sun Shihui , Lu Guangdong , Zhao Huan 
Published: August 2019

Abstract
Enhanced geothermal system (EGS) is the most effective mining method for deep dry hot rock resources, and has a broad application prospect. In recent years, it has been widely concerned by all countries around the world. In this paper, the coupling analysis of wellbore and heat storage is carried out. Furthermore the coupling simulation of unsteady heat flow in wellbore and formation, the multi-field coupling simulation of multi-scale heat storage, as well as the multi-field coupling simulation of wellbore and heat storage are deeply analyzed. The research statuses, the positives and negatives, and the future prospects of above model in the application of EGS are described. After summarizing and analyzing the above three research contents, the following suggestions are proposed:(1) Previous research on EGS mainly focuses on the simulation of multi-field coupling in the heat storage, and the heat transfer between the wellbore and the formation is often neglected. Therefore, the coupling between the wellbore and the heat storage should be overall considered, and the flow heat transfer in slender wellbore should be studied. (2) The unsteady heat flow coupling simulation between wellbore and formation did not conduct in intensive study on the wellbore heat transfer of geothermal Wells, the characteristic of geothermal wells is including an aquifer, and the heat transfer in annulus is not involved, the strata should be layered, and considering the heat conduction in annulus, so a more practical heat flow coupling model will be obtained. (3) In order to promote the development of multi-field coupling simulation theory of fractured rock mass, the mechanism of fracture generation and propagation should be deep-going studied to obtain more realistic fracture network distribution patterns.
Researches on Qualitative Recognition of Flushed Zone in Q Block on Deep Forest
Authors: Su Rui 
Published: August 2019

Abstract
In this paper we propose a method on qualitative recognition of flushed zone. We extract the morphometric parameters of logging curves to better reflect the change relations. We use deep forest model which learns the representation layer by layer. The model is more robust and have a higher accuracy than other model. This method has an excellent application performance in Q block.
Application of Density Curve Reconstruction Technology in Seismic Inversion
Authors: Yue Guo 
Published: August 2019

Abstract
Density curve is one of the indispensable data for impedance inversion. However, the limitation of density logging often results in the loss of density curve. The common solution is to use empirical formulas, such as Gardner formula, to reconstruct the density curve, but the effect is often not ideal. In order to solve this problem, the authors propose to reconstruct the missing density log curve by means of multiple linear regression, and then carry out geostatistical inversion by using the curves with high correlation between natural potential, gamma, resistivity and density curve. Finally, by comparing the inversion results of the two parameters, the inversion results of the former have a significant improvement in the coincidence rate of the posterior wells and the horizontal distribution of sandstone, which proves that the method has a significant application effect in reservoir prediction and lithologic sensitivity.
Evaluation of Asymmetric Fractures on Acid Fracturing Well
Authors: Li Ke , Zhou Jun , Yang Jing , Zhou Linbo 
Published: August 2019

Abstract
Because of the heterogeneity of acid corrosion, acid fracturing effect is difficult to assess, and how to make use of acid fracturing construction data to guide fracturing design have always been concerned by scientific researchers. Several shutdown processes have been existed in acid fracturing construction, this is similar to the process of injection and falloff well test. In this paper, basic principle of seepage mechanics and injection pressure drop well test interpretation theory are used to establish injection pressure drop mathematical model with considering the influences of asymmetric fractures. The influence of asymmetric fracture geometry and fracture number on pressure double logarithmic curve have been analyzed. The method presented in this paper to analyze the pressure drop data can better explain the fracture parameters and general effect of acid fracturing construction.
Study on Production Decline Law of Multilateral Horizontal Well in Coalbed Methane Reservoirs
Authors: Huang Dan , Yang Jing , Yu Haojie , Li Wuke 
Published: August 2019

Abstract
China is rich in coal-bed gas resources, however, because of the low abundance of coalbed methane, the low filtration ability of coal matrix and the complexity of gas streaming process, causing the single well productivity of conventional coalbed methane well is low. To improve the individual well producing rate and the economic effects of coal-bed gas reservoirs, the multilateral horizontal wells are being popularized on a large scale. Therefore, it is necessary to study the production decline law of multi-branch horizontal well in coalbed methane reservoirs. Based on the seepage physical model, a mathematical model based on resolution-diffusion-filtration was established. By using the point source function, the bottom pressure response function of single branch horizontal well was solved. By utilizing the theory of pressure superposition, mathematical model of production decline was gained, and the key elements influencing production decline were analyzed. The research results in this paper will have some guiding significance for efficient development of coalbed methane.
Research of the remaining oil displacement in Chang 8 low permeability reservoir in Fanxue area of Ordos Basin
Authors: Wang Yanglong , Yan Qibin , Yan Jiao , Deng Qiang 
Published: August 2019

Abstract
In Fanxue area of Ordos Basin, Chang 8 Oil Group has been in the development stage, the current development of more difficult and costly. In this paper, Chang 8 layers in this area are studied by using reservoir sedimentology, logging geology, petroleum geology, petrophysics, 3D reservoir modeling and numerical simulation and laboratory analysis techniques. The reservoir distribution pattern, remaining oil distribution pattern and well pattern optimization provide relevant technical results for the later development and provide guarantee for increasing reserves and production.
Research on the Development of Geographic Information Acquisition Technology and Its Application in Power Grid
Authors: Xie Jinghai , Yuan Jingzhong , Jia Yike , Sun Mi , Guo Jia , Lu Shihua , Su Dongyu 
Published: August 2019

Abstract
The development of three-dimensional information technology has effectively promoted the entire life cycle management process of buildings. Power engineering is complicated to operate and has a large number of equipment. It takes a lot of time and manpower to rely on the traditional power grid system. Based on the 3D geographic information platform, this paper analyzes the development of grid data acquisition technology, focuses on the technical principles of aerial photogrammetry and GIS spatial data, and provides basic support services for improving data processing efficiency and operation quality.