bluuebunny/crossref_metadata_2025_split huggingface dataset:
Quantifying the information impact of future searches for exoplanetary biosignatures
Authors: Balbi Amedeo , Grimaldi Claudio 
Published: August 2020

Significance
The search for life on extrasolar worlds by way of spectroscopic biosignature detection is among the most compelling scientific endeavors of the next decades. This article explores the implications of either discovering or ruling out the presence of detectable biosignatures on planets within a few tens of light years from Earth, a distance within reach of future searches. Using a Bayesian methodology, we show that not detecting biosignatures in such sample volume would bring no added information about the galactic population of life-hosting exoplanets. Conversely, if life arose independently on other planets, even a single detection would imply exobiospheres to be more abundant than pulsars. Putative interstellar transfer of life through the panspermia mechanism may, however, significantly lower this estimate.
Dry soils can intensify mesoscale convective systems
Authors: Klein Cornelia , Taylor Christopher M. 
Published: August 2020

SignificanceSoil moisture plays a key role in the climate system by affecting rainfall and drought over land. Through its impact on temperature, humidity, and wind in the lower atmosphere, it can influence where thunderstorms initiate. However, in many regions of the world, traveling storm clusters known as mesoscale convective systems (MCSs) are the dominant source of rainfall, and very little is known about their response to surface conditions once triggered. We use satellite observations to demonstrate that dry soils at scales≥200 km frequently create atmospheric conditions that intensify mature MCSs in the Sahel, long after their initiation. This surface-driven predictability of hazardous weather has potentially important applications, particularly in Africa, where the population is increasingly exposed to flood risk.
Massively parallel classical logic via coherent dynamics of an ensemble of quantum systems with dispersion in size
Authors: Gattuso Hugo , Levine R. D. , Remacle F. 
Published: August 2020

Significance
There is a worldwide effort toward quantum technology. Information processing, sensing, communication, and related areas are getting much of the attention. The advantages offered by the quantum domain are well recognized and acclaimed. Proposed implementations rely on systems operating at rather low temperatures and on the need to isolate the system from outside sources of noise. We discuss a theoretical scheme that suggests operating with a classical collection of quantum systems. An experimental demonstration of the principle is available. The ensemble is an array of size-disordered quantum dots addressed and probed by laser pulses. The algebraic approach encodes information in the coherences between quantum levels of the dots and demonstrates resilience to size disorder.
Using of radio-frequency capacitive discharge plasma for modification of jute fabrics
Authors: Antonova M V , Krasina I V , Ilyushina S V , Mingaliev R R , Minyazova A N , Ibatullina A R , Abdullina V H 
Published: August 2020

Abstract
The article considers issues related to the effect of plasma treatment on the properties of jute fabrics and their component fibers. The modes of plasma treatment of jute fabrics were selected. The surface changes of jute fibers were studied by using scanning electron atomic force microscopy. According to the results of the experiments, an increase in the strength characteristics of jute fabrics treated with radio-frequency capacitive discharge was revealed, and the roughness of the surface of jute fibers was estimated.
Voltage drop in the jet electrolytic cathode
Authors: Akhatov M F , Kayumov R R , Mardanov R R , Saifutdinova I I 
Published: August 2020

Abstract
This article presents the results of experimental studies of the voltage drop across a jet electrolytic cathode for various lengths of jets of an electrolytic electrode. The analysis of experimental data indicating a change in the conductivity of the jet electrolytic cathode, depending on the length of the jet.
Analysis of nanostructured cobalt ion beam-modified Ge surface for high capacity Li-ion battery anodes by X-ray photoelectron spectroscopy
Authors: Lyadov N M , Khantimerov S M , Yanilkin I V , Faizrakhmanov I A , Bazarov V V , Valeev V F , Suleimanov N M , Kierzek K , Gavrilova T P 
Published: August 2020

Abstract
The results of the study of nanostructured germanium (Ge), intended for its subsequent use as electrodes of lithium-ion batteries are presented. Single-crystal germanium plate was irradiated by cobalt ions with an energy of 40 keV in the dose 4×1016 Co+ / cm2 for the nanostructuring. The changes in the elemental composition occurring during the electrochemical lithiation of manufactured germanium electrode were investigated by X-ray photoelectron spectroscopy (XPS).
Construction of a mathematical model of the vibrational process of pipelines under internal and external loads
Authors: Nazarychev S A , Gaponenko S O , Zakharova V E 
Published: August 2020

Abstract
The article proposes a modal analysis of the natural vibrations of polyethylene pipelines, which is a calculation of the vertical and lateral pressure exerted by the soil on the pipelines, on the basis of which an oscillation study was conducted in the Ansys software package. The results of modal analysis for polyethylene pipes are presented for a laying scheme with inclined walls and various soils.
Gas-dynamic structure of a plasma jet in He and Ar, striking the surface of a liquid and a plane dielectric
Authors: Akishev Yu S , Kopiev V F , Kopiev V A , Inshakov S I , Kudryavtseva E D , Petryakov A V , Trushkin N I 
Published: August 2020

Abstract
The results of experiments on the interaction of an argon plasma jet with a liquid are presented. The effect of a coaxial barrier discharge on the gas-dynamic regime of a plasma jet of helium, freely blown into ambient air, and also colliding with a solid surface, is studied. Three orientation helium jets were studied - the jet is directed up, down and horizontally. Schlieren images of a jet were compared with visible images of a plasma jet. It is concluded that the main effect of the discharge on the gasdynamic regime of the jet is associated with gas heating in the discharge zone.
Application of preliminary plasma modification the surface of synthetic materials in the processes of application of functional metal coatings
Authors: Timoshina Y A , Voznesensky E F , Karnoukhov A E , Krasina I V , Rakhmatullina G R , Pankova E A , Shagivalieva R R 
Published: August 2020

Abstract
The results of experimental studies of the effect of preliminary plasma modification on the surface microrelief of synthetic materials and the adhesion of a metal coating deposited on them by magnetron sputtering are presented.
Small non-sphericity of a convergent shock wave arising in a cavitation bubble in acetone during its collapse
Authors: Aganin A. A. , Khalitova T. F. 
Published: August 2020

Abstract
A numerical study of the features of the growth of small deformations of a radially-convergent shock wave in a collapsing cavitation bubble in acetone has been performed. The liquid temperature and pressure are 273.15 K and 15 bar, respectively. At the beginning of collapse, the bubble radius is 500 μm, the bubble is filled with the saturated vapor of acetone. The initial bubble non-sphericity in the form of the second, fourth and sixth spherical harmonics are considered. The dynamics of the vapor in the bubble and the surrounding liquid are governed by the axisymmetric gas dynamics equations closed by wide-range equations of state. The bubble surface is explicitly traced. It is shown that the small non-sphericity of the shock wave during its convergence, similarly to that of the surface of a bubble during its collapse, increases with decreasing its radius in the form of oscillations with growing amplitude. Moreover, the dependence of the increase in the amplitude of those oscillations on the radius of the shock wave in the interval from its formation to its reaching the “hot” bubble nucleus with a radius r < 0.25 μm, can be described by a power law with an index of -1.18.
Experimental Investigation of Forced Gas Oscillations in a Cubic Resonator
Authors: Gubaidullin D A , Zaripov R G , Tkachenko L A , Shaidullin L R , Kabirov A A 
Published: August 2020

Abstract
Nonlinear oscillations of a gas in a volume of a cubic resonator at small excitation amplitudes are experimentally investigated. Influence of amplitude and frequency on gas dynamics is studied. It is shown the gas pressure waveform retains a continuous in time for all the being studied amplitudes and excitation frequencies and reaches its maximum at the first eigenfrequency, where it has a weakly expressed nonlinearity.
Low Power Cuk Inverters
Authors: Hakki A , Kashapov N F 
Published: August 2020

Abstract
The paper describes a low power cuk inverter for atmospheric Helium plasma (He). A high frequency was used in order to drive the pulse width modulation circuit. The average output current consumption (AOCC) was modified from (10A) up to (20A) by increasing the duty ratio from (0.10) up to (0.30) for the atmospheric Helium gas plasma. The switching frequency of the cuk inverter was fixed at (25KHz).
Isolated Ignition circuits for High Power DC Plasma
Authors: Hakki A , Kashapov N F 
Published: August 2020

Abstract
The paper describes a high voltage Spark ignition system. This spark was used to ignition an atmospheric Helium plasma (He). A high frequency (25KHz) was used in order to drive the transformer of the Spark ignition. The average output voltage was (12KV), the input DC voltage was modified from (10V) up to (14V). The duty cycle of the switching frequency was fixed at (50%).
Research on the principle of distribution network fault handling
Authors: Zhang Yuze , Tong Xinyu , Li Xu 
Published: August 2020

Abstract
Compared with the transmission network, the distribution network has a wide distribution area, a large number of electrical equipments, a complex operating environment and a high probability of fault. According to the operation characteristics and common fault types of distribution network, this paper first describes the main task and basic mentality of distribution network fault handling, and then puts forward the handling principles of distribution line fault, single phase-to-ground fault and voltage transformer fault, which provides technical support for dispatchers to deal with distribution network fault reasonably.
A Study on the effect of different proportion of B4C and Al powders on the strengthened layer of TC4 by EDM
Authors: Zhao Junling 
Published: August 2020

Abstract
The surface of TC4 titanium alloy was strengthened by powder-mixed near-dry EDM with different proportion of B4C and Al powder. The microstructure, wear resistance and strengthening time were analyzed and studied. The results show that the microstructure and strengthening time of the strengthened layer are affected by different proportion of powder. With the increase of B4C content, the thickness of strengthening layer increases, and with the increase of Al content, the strengthening time decreases. When the proportion of B4C to Al powder is 2:1, the microstructure appearance is the best, the petal structure is compact and the cracks are few, the thickness of strengthening layer is the largest, and the wear resistance of the strengthened layer is about 3.8 times as much as that of the substrate.
Multi-working points Power follower based energy management strategy for series hybrid electric vehicle
Authors: Peng Chunlei , Feng Fuyong , Xiao Yuefeng , Liang Wenjiao , Xubing  
Published: August 2020

Abstract
The series hybrid electric vehicle is powered by an internal combustion engine-regenerator and the battery, and the two kinds of source have different operational characteristics. Energy management strategy will effect fuel consumption, SOC maintenance, and the driving performance. So, it is very important to do Energy distribution well. In this study, a Multi-working points Power follower based energy management strategy was erected, PPU will supply the low-frequency and base power while BMS will supply the high-frequency and peak power, and both of PPU and BMS work in their efficient operating regions. A typical driving cycle was employed to test the effectiveness of the proposed strategy, and the simulation results show that the strategy can effectively split the power between PPU and BMS, and help the vehicle follow the Driving cycle well.
Investigation of influence the slot/pole combinations on the torque performance for synchronous reluctance machine with distributed and concentrated windings
Authors: Salah Amer , Elnour Muhanad M , Elnail K E I 
Published: August 2020

Abstract
This paper explores the electromagnetic performance comparison of three different types of synchronous reluctance machines. The investigated machines including, conventional full pitch distributed winding (24 slots/4 poles), an integer slot concentrated nonoverlapping winding (12 slots/4 poles), and fractional slot concentrated nonoverlapping winding (15 slots/8 poles). A finite element analysis JMAG Designer is used to validate the performance for all machines, and have been employed for the optimisation process to improve the torque density as well as to minimise torque ripple. Meanwhile, the current density, slot filling factor and specific dimensions, viz., stator outer diameter, stack length and air gap are designed to be constant. The result shows that for a DW-SynRM, a high value of average torque is achieved, and the torque ripple is lower. The result also demonstrates that the FSCW-SynRM can reach a low torque oscillation. Meanwhile, the ISCW-SynRM exhibit a high reluctance torque, but the torque ripple is a big challenge. On the whole, the distributed winding machine has the best performance compared to concentrated winding machines.
Research on the Basic Electromagnetic Compatibility of Locomotive Based on Electromagnetic Simulation
Authors: Chen Jiahao 
Published: August 2020

Abstract
By means of the electromagnetic simulation software, the cable model of the electric equipment inside the locomotive is established. The electromagnetic field of different types of cables, the situation of different positions and whether to add barriers are analyzed, so that the shielding effect can be reflected. Besides, the formula of shielding effectiveness is analyzed and the relevant conclusions are obtained. Through this paper, a conclusion can be drawn about the influence of different cable types, different cable placement methods, and whether or not to add barriers between cables on electromagnetic compatibility.
RETRACTED: Research of Smart Tourism Management Model under the Background of Big Data
Authors: Liu Ying 
Published: August 2020

Abstract
In recent years, communication and information technology have developed rapidly, and various industries are rapidly transforming into digitalization, informatization, and intelligence, thus entering a new era of big data. Smart tourism is no longer a slogan. It has become the goal of the transformation of the tourism. In the context of the development of big data, the essence of smart tourism is researched and the ideas of smart tourism development and construction are discussed. A platform can be used to build tourism service prediction and feedback, and the path of building a smart platform can be discussed.
Application of Big Data Technology in Product Selection on Cross-border E-commerce Platforms
Authors: Liang Jia-Hui 
Published: August 2020

Abstract
With Amazon as the study case, the application of big data in product selection on this e-commerce platform is studied. Two big data analysis tools commonly used in commerce, the MPP distributed database and the Hadoop distributed database, were analyzed. Based on big data technology, the search function of the platform, the analytical tools, and third-party data analytical tools, this study compared different levels of comments of customers for the same type of products and analyzed the product selection mechanism.
RGB-D SLAM based on semantic information and geometric constraints in indoor dynamic scenes
Authors: Liu Tao , Zhao Hailong , Liu Yiqun , Fan Xuanxia 
Published: August 2020

Abstract
In order to solve the shortcomings of traditional simultaneous localization and mapping in dynamic environment, which is interfered by moving objects, resulting in low accuracy and poor robustness, a visual simultaneous localization and mapping algorithm combining semantic information for motion detection was proposed. First, the SegNet deep neural network is used to extract the semantic information of the environment, and the prior knowledge is used to determine the static attribute objects and dynamic attribute objects. In the motion detection module, the feature points on the dynamic attribute objects are used to perform motion detection using geometric constraint relationships. Then the building module uses semantic information to build a semantic octo-tree map. In order to analyse the effect of motion detection, a control experiment with a motion detection module removed was set up. Finally, experiments were conducted using TUM datasets, and the experimental results of the two schemes were compared and analysed.
Fuzzy BP neural network in radar intelligence quality evaluation
Authors: Liu Renzheng , Fan Xiongfei , Wang Zhijun , Yue Wei , Tian Kangsheng 
Published: August 2020

Abstract
This paper presents a novel approach of radar station intelligence quality evaluation which based on fuzzy Backpropagation neural network (BPNN). Firstly, the index system of the radar station intelligence quality evaluation is established according to the analysis of the process, the characteristics, and the main influencing factors of the radar station intelligence production. And then the factor set, comment set and the membership matrix are structured, the fuzzy BPNN for evaluating the quality of the radar station intelligence is designed referring to the index system. Finally, the experiment shows that the accuracy and stability can be improved effectively by using fuzzy BPNN to evaluate the radar station intelligence quality
State estimation of packet loss network based on dimension compression of measurement information
Authors: Lan Jie , Wang Ting 
Published: August 2020

Abstract
With packet loss, this paper proposes a method to compress the dimension of measurement information obtained by the sensor which is distributed in the wireless sensor network with single sensor and single communication link. Based on the minimum mean square error criterion, the state estimation method under the condition of dimension compression of measurement information is designed by using the improved Kalman filter when measurement noise and system noise are correlated. And the convergence condition of the estimation algorithm is analyzed. The simulation platform of matlab is used to verify the proposed estimation method. It is proved that the estimation accuracy of the measured physical quantity can be improved by using the dimension compression of measurement information estimation method, so as to improve the reliability of the whole network system.
A lightweight attribute-based authentication system with DAA
Authors: Liu Xin , Guo Man , Zhang Bin , Li Xuzhou 
Published: August 2020

Abstract
In cloud computing environment, while preventing users from illegally accessing resources, various cloud service systems must provide protection for authorized users of their personal sensitive information. Attribute-based authentication (ABA) makes it possible to solve the above problems. An efficient ABA system was put forward by extending the direct anonymous attestation (DAA) scheme of Brickell et al. During the construction of the new system, the technique of lightweight ciphertext policy attribute-based encryption was adopted, and the online computing task of users was optimized. Compared with other similar systems, the new system is characterized by the use of trusted computing technology to improve the level of privacy protection of users, and the computational complexity of users in the authentication stage is independent of the size of access policy.
Preliminary study on prediction-driven munitions supply mode based on big data
Authors: Bai Yu , Qin Xiangyu , Zhang Jingchen 
Published: August 2020

Abstract
The application of big data in military logistics has made great leap in the way of supporting forces and aiding in operational decision-making. This paper introduces a new munitions supply mode—prediction-driven munitions supply based on big data. By monitoring the various sources of munitions consumption data and order data, leveraging the processing technologies, the prediction-driven munitions supply can realize the munitions requirement prediction, and based on the result of the prediction, the munitions managers and logistic supporting organizations can suggest supporting decisions, which leads to the realization of supply ammunition well in advance of shortages happen.
Improving the application of fuzzy RBF neural network in temperature control system
Authors: Dingfang  , Zhouyang  
Published: August 2020

Abstract
The temperature control system of aircraft ground air conditioning has the characteristics of complex work, non-linearity and time-varying working, the traditional PID control overshoot is too large and the response speed is low, which can not meet the needs of high efficiency and speed. In order to improve the control performance of aircraft ground air conditioning, a fuzzy RBF neural network optimized by the improved bacterial foraging(BFO) and flower pollination(PFA) algorithm was designed, and the air conditioning system was modeled and simulated. The analysis results show that the improved algorithm has better control ability than other algorithms in terms of control accutacy and anti-interference ability, effectively restraining the large lag and other problems, which provides a theoretical reference for the optimization of air conditioning temperature control system.
Improved Kriging model based on weighted self-adaptive differential evolution and application for structural monitoring data
Authors: Wang Junlong , Liu Hongyue 
Published: August 2020

Abstract
The integrity of structural health monitoring data plays an important role in extracting data features. An improved Kriging model based on weighted self-adaptive differential evolution algorithm (KWSDE) is proposed to repair the spatial missing data. In the KWSDE model, the control parameters of variogram in Kriging are optimized by a novel differential evolution (DE) with both scale factor and crossover rate adaptation. Besides, a weighted least-square method is presented for the optimization process to restrain the variable scale of the fitness function, which makes it more suitable for the lack of monitoring data. Finally, a distributed optical fiber monitoring experiment is designed to verify the reliability and functionality of the proposed model. Compared with the Kriging based on DE model (KDE), the interpolation precision of the KWSDE model can be improved by more than 10%, which has great significance for its engineering application.