bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Green Route to Prepare Semitransparent Superhydrophobic-Oleophobic Coatings
Authors: He Sizhe , He Xiaoyong , Cheng Xuan , Huang Liuying 
Published: November 2019

AbstractA series of coating samples were prepared with various combinations of solvents being tested via a two-step dip-coating route. The surface hydrophobicity was studied by measuring water and oil contact angles. Furthermore, the surface topography, optical and abrasive properties of the selected 4 coating samples were examined by atomic force microscopy (AFM), ultraviolet-visible spectrophotometer and friction cycle test, respectively. The best overall properties were achieved with the coating sample prepared by nontoxic epoxy resin-ethanol (Step 1) and isopropanol (Step 2). The water and oil contact angles reached 152.0° and 112.7°, respectively, and water contact angle remained 150.2° upon 5 cycles of the friction test with sandpaper. The transmittance of 80% was obtained in the wavelength ranging from 400 to 800 nm.
Design and Preparation of Wave-Transmitting Reinforcing Coatings for Multifunctional Ceramic Composite Antenna Windows
Authors: Sun Chenggong , Zhang Qingli , Zhang Xunhu , Xing Zhengpeng , Wang Yanyan , Cheng Honghao , Jiang Liping 
Published: November 2019

Abstract
For obtaining multifunctional ceramic composite antenna windows with integrated function including low density, wave-transmission and thermal insulation, the design and preparation of reinforcing coatings on ceramic matrix was discussed in detail in this work. With quartz glass chopped fiber as the major constituent for matrix, borosilicate glass was selected as the main phase for reinforcing coatings, and functional filler was added to match the coefficient of thermal expansion between the two components. According to the performance testing of the as-prepared samples, content of B2O3 in SiO2/B2O3 binary system and sintering temperature showed a marked impact on the microstructure, density and thermal behaviour of the ceramics. Densified coatings were prepared at 1160°C after sintering for 1h with 20% B2O3 in borosilicate glass, which bond well with the substrate and have radiation coefficient of 0.85 and linear expansion coefficient of (1.77∼2.39)×10-6/°C (200∼1000°C). Stronger matrix, better ablation resistance and dielectric properties are expected to be integrated in the obtained sample pieces, which can be a good candidate as effective thermal insulation materials for aerospace aircrafts at high flight Ma.
Application of Non-mold Casting Technology in the Tractor Diesel Engine Cylinder Block
Authors: Xing-hai Shao , Feng-jun LI , Xu Hai-duo , Qi AN , Xiang Ling-fang , Feng Zhi-ming , Le-hua LV 
Published: November 2019

Abstract
This paper researched the application of non-mold casting technology for reducing the development cycle and cost of tractor diesel engine cylinder body. The detail of the each process method has explained which based on the non-mold casting process of a diesel engine cylinder block. The results showed that rapid casting of diesel engine cylinder block can be realized by the non-mold casting composite forming technology, combined with CAD/CAE technology and virtual reality technology. The advantages of this method have fast speed, low cost, green, and lightweight, that is to say, piece manufacturing cycle was shortened by more than 50%, single piece manufacturing cost was reduced by more than 81%, and 8-9 molds were saved.
Experimental and Numerical Studies of Ice Accretion on Atmospheric Icing Laboratory at Different Icing Pattern and Time
Authors: Zhao Chen , Liu Panfeng , Wang Haijiang 
Published: November 2019

Abstract
The purpose of this paper was to explore a suitable icing test method which can achieve the requirement of the experimental conditions better and faster in atmospheric Icing Laboratory. So, the effects of varying the spray method and spray time of different conditions were studied in experiment. The ice shape and profile of ice accretion obtained in atmospheric icing laboratory were investigated with variable air temperature. The icing object was exposed to the one aerosol cloud------freezing rain. In addition, the heat balance model of dynamic process of single droplet would be set up, the experimental condition of distance between nozzles and icing object was analysed by simulation calculation for the model. At the same time, appears the effects of different distances on the mass, ice shape and ice accreted of profile under different conditions in experiment.
Research on Braking Vibration Characteristics of Grooved Brake Interface of Disc Brake
Authors: Sha Zhihua , Kang Panli , Yin Jian , Liu Yu , Zhang Shengfang , Ma Fujian , Yang Dapeng 
Published: November 2019

Abstract
With the good performance and wide application of surface texture in various aspects, more and more scholars are devoted to investigating the effect of texture interface on tribological properties. Disc brake friction pair is a typical friction brake interface. In order to consider the influence of grooved brake interface on vibration characteristics during braking, a simplified finite element model of brake interface is established in this paper. By processing parameterized grooves with different lengths and angles on the surface of the brake disc, the effects of “blind groove”, “through groove” and “angle” on the vibration characteristics of the brake disc during braking process are simulated and studied, which can provide reference for the structural design and optimization of the brake disc texture.
Comparative Analysis of Power Plants Using Low Potential Heat of Liquefied Natural Gas (LNG)
Authors: Dmitry Uglanov , Evgeny Blagin , Roman Panshin , Olga Tereshchenko , Vladimir Biryuk 
Published: November 2019

Abstract
The idea of using low-potential energy of cryogenic liquids has recently become more widespread. This is primarily due to the increasing production of cryogenic substances, as well as the general trend of energy saving and the energy potential existing in the cryoproduct in the form of energy previously used for its liquefaction.
Low-potential energy is the energy of a colder environment, having the same pressure as the consumer’s energy converter. Currently, one of the most frequently used cryogenic substances is liquefied natural gas (LNG), and methods of regasification and use continue to improve.
This paper proposes a method for a comparative analysis of the use of liquefied natural gas as a working fluid, a study of the efficiency of the regasification process. The main parameters of energy installations were calculated and the main advantages and disadvantages were identified on the basis of the results, and the most optimal one was selected.
Simulation Study on Gap Flow Field in EDM Micro-hole Machining Based on Gas-liquid-solid Three-phase Flow
Authors: Liu Yu , Liu Chuangye , Zhang Wenchao , Zhang Shengfang , Ma Fujian , Yang Dapeng , Sha Zhihua 
Published: November 2019

Abstract
In the process of micro-hole machining in EDM, if the debris and bubbles are not removed from the gap flow field, the concentration of debris and bubbles will increase, which will cause arcing discharge and seriously affect the processing efficiency and surface quality. In this paper, the geometric model of three-dimensional cylindrical gap flow field was established. The influence of bubble generation on the gap flow field and the debris under single pulse discharge condition was analyzed by Fluent. Then using the secondary development function of Fluent, the process of the debris and bubble on the bottom surface is continuously generated and the influence of bubble on the movement of debris under continuous discharge conditions were simulated and analyzed. Finally, by considering side flushing, the motion process of bubbles and debris under the conditions of flushing was analyzed.
Reconstruction on Rotor Profile of Twin Screw Compressor Based on Cubic B-spline Curve
Authors: Chen Yinglei , Ge Rongyu , Kong Beibei , Ni Xiaomei 
Published: November 2019

Abstract
In order to overcome the inconvenience of adjusting the rotor profile of twin screw compressor, the method of using cubic B-spline curve to express the rotor profile is put forward. CFD simulation analysis of the rotor compressor formed by the modified cubic B-spline curve shows that the performance of the rotor profile described by the cubic B-spline curve has little difference with that of the original profile line, and the rotor profile described by cubic B-spline curve is more convenient to modify.
Sliding Bearing Material Testing Machine under High Temperature Corrosion Conditions
Authors: Jiang Wenxun , Wang Wen 
Published: November 2019

Abstract
Sliding bearings are widely used in submerged rolls of strip galvanizing line immersed in zinc bath. Submerged roller bearing pair materials include sleeves and bushings. These two parts are in high temperature, load and corrosive working environment. They are prone to wear and failure. The service life of bearing pair materials determines the operation time of the whole galvanizing line. In order to ensure long-term operation of galvanizing line, the most ideal method at present is to select suitable sleeve and bushing material matching pairs. To screen sleeve and bushing materials with good matching performance, a friction and wear tester simulating sleeve and bushing materials in high temperature molten zinc environment was designed and developed. The test machine is divided into three parts: driving system, loading system and heating system. The driving system drives the sample rotation of the sleeve; the loading system drives the bushing pattern to load the sample of the sleeve; the well heating furnace heats the zinc ingot to 480 °C to simulate the zinc pool environment; the vertical loading of bearing pattern and sleeve pattern, the alignment and insulation of the driving system and the loading system are comprehensively considered and solved. The stability of the test machine under test conditions is analyzed to ensure that the signal collected by the sensor has a high reference value.
A Novel Reference Model-Based Neural Network Approach to Temperature Control System
Authors: Xu Song , Hashimoto Seiji , Jiang Wei 
Published: November 2019

Abstract
With the continuous development of deep learning, neural network with its excellent self-learning performance obtains a series of a major breakthrough in target detection, image recognition and so on. In this paper, the temperature control system based on a neural network combined with I-PD compensation is proposed. To improve the neural network self-learning efficiency, the reference model is introduced for providing the teaching signal of neural network. The system simulations are carried out in MATLAB/SIMULINK environment to verify the control efficiency of the proposed reference model based neural network control system. The experiments are carried out on the DSP based temperature control system platform, the results are compared to the conventional I-PD control system to verify the control efficiency.
Hybrid Non-Local Network for Abstractive Summarization
Authors: Hao Zepeng , Guo Yupu , Gong Cheng , Chen Honghui 
Published: November 2019

Abstract
In the field of abstractive automatic summarization, the Seq2Seq model constructed by the RNN network is widely used and has achieved perfect results. However, due to the Seq2Seq model and the internal structure of the RNN network, only short-term and local information can be referenced in the process of generating summary, resulting the generated summary contains less information, and may even happen that the generated summary does not match the corresponding document. There have been many previous attempts to improve the model by using the attention mechanism, but only to use long-term information within a certain range. In our paper, we present a abstractive summarization model that enhances the global feature, which called Hybrid Non-Local Network model for single document summarization task, consisting of a non-local block and a traditional Seq2Seq module. Our model uses the non-local network block to transform the Seq2Seq model to better capture global feature. For example, the relationship between words and words, sentences and sentences in a large span of the original document, making the generated summary of higher quality, more informative, more accurate and rich representation of the original document. The experiments in our paper are performed on the CNN/DailyMail corpus. The proposed model was improved by 1.37, 0.47, and 1.16 onR-1 score, R-2 score, andR-L score, separately, compared to the baseline model.
Study on Vessel Maintenance Support System Modelling Based on DODAF
Authors: Chaowei Wang , Lvhui Ding , Qian Wu , Jie Zhang , Peichang Li 
Published: November 2019

Abstract
The vessel maintenance support system, which consist of aboard and onboard two parts, is different from the other equipments, with the characteristics of tasks varied, complex structures and onerous business. It is a virtual system rather than a material system. So the traditional modelling method which is used to describe the material objects has some defects of long communication period, weak reusability and poor expansion in describing support system in design process, which apparently cannot meet the current demands. It is imperative to introducing standardized design and modelling approach to establish the vessel support system. The study firstly analyses the function, organization, resource and operation of vessel support system. The support system modelling method is introduced based on the analysis of different view products in DODAF framework. The support system model, which is consists of organization model, activity model and information exchange matrix is given based on active based model. It can provide guidance in support system design, support concept generation under new situation, even in integrated joint operation system design in the future.
Study on Evaluation Model of Equipment Transportation Efficiency Based on Analytic Hierarchy Process
Authors: Qian Wu , Chaowei Wang , Fei Pei , Yingcheng Xu , Xiaowei Lu 
Published: November 2019

Abstract
On the basis of factors influencing the evaluation of equipment transportation efficiency, such as safety, timeliness, universality and economy of system analysis, and in combination with the basic theory of Analytic Hierarchy Process (AHP), this paper sorted out the main steps for evaluation of equipment transportation efficiency, established the hierarchical chart for evaluation index of equipment transportation efficiency, proposed a comprehensive evaluation model of equipment transportation efficiency based on AHP, and verified the feasibility of this model through the specific cases. The comprehensive evaluation model of equipment transportation efficiency based on AHP proposed by this paper provides a method for the decision makers to select the optimal design scheme for equipment transportability, and lays a foundation for related studies of equipment transportability.
The influence of seasonal changes on the formation of colloids and thin films of iron(III) hydroxide in Ob floodplain lakes
Authors: Lyutova E , Borilo L , Izosimova E , Kolesnichenko L , Rozhkova-Timina I , Spivakova L 
Published: November 2019

Abstract
The research was conducted in the middle Ob floodplain. Several parameters (dissolved CO2, pH, conductivity, temperature, humin substances, Fe) were measured in six floodplain lakes in summer and autumn periods 2018. Temperature, conductivity and dissolved CO2 demonstrated the significant difference between these two samples.
Obtained Heteromodulus Composites Based on Zirconium Carbide
Authors: Mirovoy Yu A , Burlachenko A G , Buyakova S P , Kulkov S N 
Published: November 2019

Abstract
The article is devoted to the impact of carbon additives on densification and mechanical properties of ZrC/C heteromodulus composites. In case of addition of small amount of carbon to ZrC residual porosity decreases, whereas higher carbon content leads to more than 3vol.% increase in residual porosity. Moreover, increase in carbon content in ZrC/C composites boosts toughness of sintered materials. For example, К
IC
=4.3 MPa×m1/2 for ZrC and К
IC
=7 MPa×m1/2. for 3 vol.% C. For 15 vol.% of C, toughness is the lowest and equals 5.3 MPa×m1/2. The extrapolation of the dependence of toughness on the non-porous state of materials is К
IC0
=13.2 MPa×m1/2.
Methods for describing structure of novel porous materials: a review
Authors: Smolin A Yu , Eremina G M , Korostelev S Yu 
Published: November 2019

Abstract
The physical and mechanical properties of heterogeneous materials are mainly determined by their structure. Due to the wide capabilities of modern technologies for the formation of complex multilevel pore structure of ceramics and other materials, the ability of modern methods to describe and characterize such a structure completely is of particular interest. Traditionally, the pore structure is characterized by a large number of parameters such as porosity, type and shape of pores, the fraction of cross-sectional area of channels, pore size distribution, etc. However, recently, at least three new quantities are often used to describe and measure the structure of various complex media: the Minkowski functionals, fabric tensors, and correlation functions. This review is aimed to consider all these three approaches and their capabilities for describing and measuring the peculiarities of the structure of porous materials.
Investigations of the stress-strain state of a compressed steel concrete column using digital image correlation method
Authors: Plyaskin A S , Klopotov A A , Potekaev A I , Koshko B O , Ustinov A M , Volokitin O G , Kurzina I.A. , Tayukin G I 
Published: November 2019

Abstract
The results of the investigation of deformation during axial compression of a steel-concrete round column with dimensions of 1000×102 mm on the testing machine Universal Testing Machine 4500 using a digital optical system Vic-3D are presented. The patterns of the evolution of strain field distributions on the surface of the steel shell of the column are obtained. A deformation diagram indicating the transition stages of elastic strains to inelastic ones is constructed. A jump-like dependence of the Poisson’s ratio on the longitudinal relative strain of the steel concrete column during deformation of the steel concrete column is established. This phenomenon is explained under the assumption that the deformation process involves redistribution of the forces (deformations) among the components of the composite system at the stage of joint operation before separation of the steel/concrete media and operation of concrete beyond elastic strain under conditions of volumetric compression.
Field theory of monochromatic optical beams: II. Classical and quantum paraxial fields
Authors: Aiello Andrea 
Published: November 2019

Abstract
This work is the second part of an investigation aiming at the study of optical wave equations from a field-theoretic point of view. Here, we study classical and quantum aspects of scalar fields satisfying the paraxial wave equation. First, we determine conservation laws for energy, linear and angular momentum of paraxial fields in a classical context. Then, we proceed with the quantization of the field. Finally, we compare our result with the traditional ones.
Model-based design of areal material measures with component surfaces
Authors: Eifler M , Klauer K , Seewig J , Kirsch B , Aurich J C 
Published: November 2019

Abstract
The calibration and verification of areal surface topography measuring instruments is usually performed with artificial geometries that do not correspond to a practical measuring task like gratings or step height artefacts (ISO 25178-70:2014). While these processes have a sufficient process capability to meet the requirements of many industrial measurement applications, there are more and more applications that require small tolerances, which results in the necessity of a performance verification that is more closely related to the later performed measuring task. With a model-based design approach it is possible to design material measures based on component surfaces for an application-oriented performance verification. The initial point is a measured dataset, which is evaluated and virtually transformed in a way that on the one hand the target properties are met, but on the other hand also the functional properties of the surface that are relevant for the specific application are preserved. Based on the subsequent application of virtual manufacturing and measuring processes, also impacts from these processes can be considered in the design of the verification sample. In this study, we extend the basic approach that has been developed for the design of profile material measures e.g. with the manufacturing principle of ultra-precision turning (Seewig, Eifler, Schneider, Aurich Proc. CIRP
45 (2016), 259-262; Eifler, Schneider, Seewig, Kirsch, Aurich Eng. Sci. Technol.
4 (2016) 1993-2001. Seewig, Eifler, Schneider, Kirsch, Aurich Surf. Topog.: Met. Prop.
4 (2016) 024010. Eifler (2016)). to areal material measures and a corresponding manufacturing principle of micro-milling. With the model-based design approach, component surfaces are used to determine two different material measures that feature defined values of the surface texture parameters Sa, Sq, Sk, Svk, Spk as a case study. It will be shown that the areal surface texture parameters can be mapped to the designed material measures that enable a practical performance verification.
High field phase transition of cathode material Li2MnSiO4 for lithium-ion battery
Authors: Yang Feng , Xia Zhengcai , Huang Sha , Zhang Xiaoxing , Song Yujie , Xiao Guiling , Shao Gangqin , Liu Yong , Deng Han , Jiang Dequan , Ouyang Zhongwen 
Published: November 2019

Abstract
The magnetic properties of the candidate lithium-ion battery cathode materials Li2MnSiO4 have been studied experimentally using static and pulsed high magnetic fields. A field-induced magnetic transition is observed in low temperature region, in which a saturation magnetization is observed above 27 T which confirms that the Mn-ion has a dominant low spin state with a saturated magnetic moment of ∼3.1 μ
B/Mn. With the change of temperature and magnetic field, the Li2MnSiO4 shows a complex magnetic phase transition. Considering to the coupling between spin, charge and orbital, the field-induced magnetic transition may affect the charge-discharge behavior of the cathode material, thus, the study is expected to explore the possibility and stability of the candidate lithium-ion battery cathode materials used in the low temperature and high magnetic field circumstance and its performance degradation.
Structure, morphology and luminescence properties of sol-gel method synthesized pure and Ag-doped ZnO nanoparticles
Authors: Chitradevi Thangaraju , Jestin Lenus A , Victor Jaya N 
Published: November 2019

Abstract
Highly Crystalline pure and Ag-doped ZnO nanoparticles were prepared using the inexpensive sol-gel synthesis method with the stimulation of transition metal ion surfactant. The prepared pure and Ag-doped (Silver doped) ZnO nanoparticles were characterised by various sophisticated techniques like x-ray Diffraction (XRD), Scanning Electron Microscope (SEM), Dynamic Light scattering (DLS), Fourier Transform Infrared Spectroscopy (FTIR), UV–visible absorption, Photoluminescence (PL) and Zeta potential. The result indicates that the average grain size of the prepared nanoparticles was found to be a minuscule 24 nm with a commendable bandgap of 3.21 eV and 1.73 eV respectively. The hexagonal wurzite structures of pure and Ag-doped ZnO at room temperature confirmed the luminescence characteristics of the nanoparticles.