bluuebunny/crossref_metadata_2025_split huggingface dataset:
3D Nasal Magnetic Resonance Image Registration by Maximization of Mutual Information
Authors: Tang Jiawei , Lu Wenhuan , Honda Kiyoshi 
Published: April 2020

Abstract
The magnetic resonance image (MRI) is widely used in medical treatment, which is harmless for human body. However, more noise than the CT image sometimes can be a problem when doctor focus on details of some narrow structure of human body such as nasal. It is necessary to process the MRI like image fusion before using it. Subjects have to move head during a few MR scans. Image registration can help all corresponding points find their own correct position, so that it can be processed and give us more information from not only one time scan. Mutual information is a good mathematics tool in statistics and information theory. It can describe the relationship between input signal and output signal. In this paper, they are reference image data set and float image data set, and the process between them are some little bit head move and some other influence during scanning. The rigid body transformation is used to reduce the impact of head move because the nasal consisting of bones almost don’t changes shape during scan. Registered images from another scan and reference image can get together to be used in image fusion and reconstruction.
A Survey on Privacy-Preserving Data Mining Methods
Authors: Yang Yunlu , Zhou Yajian 
Published: April 2020

Abstract
In recent years, the increase in massive data in various fields has promoted the development of data mining. Still, the storage and mining of user data bring about the threat of privacy leakage. Researches on privacy-preserving data mining have become an increasingly significant research area. Focusing on the hidden dangers of privacy leakage in data mining methods, three leading privacy-preserving technologies came into being, which are data distortion technology, data encryption technology, and restricted publication technology. In this paper, we introduce and summarize the latest researches based on these privacy-preserving technologies. Besides, we describe the state-of-art research trends on privacy-preserving data mining methods in image processing and natural language processing.
Driver Distraction Behavior Detection Method Based on Deep Learning
Authors: Mao Peng , Zhang Kunlun , Liang Da 
Published: April 2020

Abstract
With the rapid development of road traffic in China, driver safety accidents caused by road traffic accidents are increasing year by year. According to statistics of relevant departments, 20%-30% of traffic safety accidents are caused by distracted behaviors of drivers. For this reason, this paper proposes a driver distraction behavior detection method based on deep learning, which uses PCN and DSST algorithms for face detection, location and dynamic face tracking. Finally, YOLOV3 object detection algorithm is used to identify distracting behaviors such as smoking and making phone calls around a person’s face. The method can detect distracted behaviors in the driving process in real time and has high detection accuracy.
Study of All Solution Processed Exciplex Organic Light-Emitting Diode
Authors: Zhao Juewen , Huang Youchao , Guo Jing , Zhang Ning , Zheng Caijun , Du Xiaoyang , Lin Hui , Tao Silu 
Published: April 2020

Abstract
Organic light-emitting diodes (OLEDs) are widely used in full-color display panels, fluorescent tubes and solid-state lighting devices. In recent years, due to the material utilization yield of the vacuum deposition method is very low and maintaining a high vacuum further increases the fabrication cost and complexity, solution processing method has become a research hotspot. However, the development of solution-processed OLEDs has a great challenge in multilayer structure formation and nearly all prior reports on solution-processed OLEDs were utilizing a vacuum deposited electron-transport layer (ETL). Therefore, it is of great significance to further research on all solution-processed OLEDs whose ETL were spin-coated. In this paper, spin-coated ETL based OLED with high current efficiency that comparable with vacuum deposited ETL based OLED were successfully achieved.
Charge Transport Properties of Cu2S/Bivo4 Composite Photocatalyst
Authors: Wang Lijie , Yu Ping , Wang Xingyue , Cui Xianghong , Liu Xiaodong , Sui Xin , Zhang Xiaochen , He Dongqing 
Published: April 2020

Abstract
The Cu2S/BiVO4 composite photocatalysts had been synthesised by a simple solution adsorption method. The obtained samples were characterised by means of field emission scanning electron microscope (SEM), X-ray diffraction patterns (XRD), UV-visible absorption spectrum techniques and transient photovoltage spectra (TPV). The results showed that the Cu2S nanoparticles were evenly loaded on the surface of the dumbbell-like BiVO4 composites. Compared with pure BiVO4, Cu2S/BiVO4 composites had better photocatalytic activity. Furthermore, the photogenerated charge transport properties of Cu2S/BiVO4 composites were investigated by means of TPV technique. The interface between BiVO4 and Cu2S enhanced the separation efficiency of photogenerated charge carriers, thus, the photocatalytic activitie of Cu2S/BiVO4 composites was enhanced.
Analysis of Improving Impact Resistance and Heat Treatment Method of Tempered Glass
Authors: Bai Bin , Liu Zengtao , Zhang Baofang , Zhou Guowei 
Published: April 2020

Abstract
At present, glass is common in our lives. Glass has excellent physical and chemical properties. It has high compressible strength, high hardness, transparency, good stability, and is not easily deformed. It is an inorganic non-metallic material with a wide range of uses. With the development of science and technology, the scope of application of glass is more and more extensive, and the strength requirements for glass are also getting higher and higher. How to improve the impact resistance of tempered glass, this article studies the heat treatment processing technology and parameter adjustment, and the appropriate process route through appropriate heat treatment methods, so as to improve the impact resistance of tempered glass. Inspection has verified the rationality of the process.
Preparation and Optical Properties of ALF3: Cr3+ Phosphor
Authors: Cai Min , Yao Xinyan , Man Shiqing 
Published: April 2020

Abstract
Cr3+ doped AlF3 phosphors were synthesized via a facile solid state reaction method. XRD results showed that the prepared samples are single-phase. In the emission spectrum of AlF3:Cr3+ powders, there is one sharp line emission located at 695 nm, which is arisen from 2E→4A2 transition of Cr3+ in AlF3 lattice. The excitation spectrum of AlF3:Cr3+ powders monitored at 695 nm emission have two excitation bands of 500~600 nm and 380~450 nm. At room temperature, the fluorescence decay of Cr3+ ions in AlF3 have been measured and the fluorescence decay curve have been reported.
Preparation and Properties of Cr3+ Doped Mg0.388Al2.408O4 Red Phosphor
Authors: Yao Xinyan , Cai Min , Man Shiqing 
Published: April 2020

Abstract
The Cr3+ activated Mg0.388Al2.408O4 phosphor was synthesized by sol-gel and high temperature solid phase method in the air at 1400°C for 6h. The phosphors structure was measured by X-ray diffraction (XRD); excitation spectra, emission spectra and decay lifetime were obtained by fluorescence spectrophotometer equipped. It showed that the sample has two strong broad absorption ranging from 390nm to 420nm and 530nm to 590nm, and the peak positions are around 407nm and 552nm; the maximum of the red emission which is due to the transition from the 2Eg(2G) excited state to the 4A2g ground state is at 688 nm. And the lifetime of Cr3+ in the Mg0.388Al2.408O4 host is 4.8255ms.
The effect of the amount and type of curing agent on the basic properties of UF resin
Authors: Li Jing , Chen Yuzhu , Jing Mingwei , Feng Qiaolin , Yang Yupeng , Li Wei , Yi Maoyu , Ou Chuan , Fu Chengang 
Published: April 2020

Abstract
In this study, the effects of four single-component curing agents on the basic properties of UF resins were investigated. The basic properties include pH, gel time and valid period. The studies have shown that different curing agent types and additions have different effects on the basic properties of urea-formaldehyde resins. The degree of influence of different curing agents of the same addition amounts: APS>AC>AS>AP, the degree of influence of different addition amounts of the same curing agent: 5%>2%>1%. Comprehensive comparison of four single-component curing agents, the optimal curing agent is AC, the optimal addition amount is 2%. This study laid the foundation for the subsequent study of the effects of multi-component curing agents on the properties of resins.
Research on the Improvement of Spacecraft Manufacturing Enterprise Quality Management System Audit Based on Process Method
Authors: Liu Wei , Sun Gang , Zhu Kaimin , Zhang Bin 
Published: April 2020

Abstract
This article combines the spacecraft manufacturing enterprises that simultaneously build and operate ISO9001 and AS9100 quality management system. According to the process strengthening requirements of quality management system standards, research and improve the audit work with process method as the core. This article introduces the "turtle chart" process method audit management tool, summarizes the specific model and implementation points of the process method in the quality management system audit. This article analyzes the important role of this method in the internal audit of quality management system, in order to provide reference for spacecraft manufacturing enterprises to improve the audit of quality management system.
Application of Green Manufacturing Process in Cutting
Authors: Jiao Runyu , Chen Bo 
Published: April 2020

Abstract
Reducing the consumption of resources by traditional manufacturing industries and avoiding environmental pollution caused by traditional manufacturing industries is one of the major problems facing the manufacturing industry in the new century.Nowadays, countries adopt a sustainable development strategy, which is about the manufacturing cycle of products around green manufacturing.Green manufacturing is the only way for sustainable social development. It plays an important role in equipment manufacturing, national defense security and the national economy.In this paper, the use of traditional and green processing technology in the key machining process is analyzed, and the evaluation method of quantitative measurement of green manufacturing process elements is deeply studied.Through the analysis, optimization and evaluation of raw material loss, auxiliary materials and energy consumption, pollutant discharge and other factors in the engine machining process planning, this paper has achieved the greening of mechanical processing and mechanical processing of other parts. Have a certain guiding significance.
Monitoring Deep Mining Similarity Material Model of Super-Thick and Weak Cementation Overburden by Digital Photography
Authors: Zhang Guojian , Lv Yi’nan , Guo Guangli , Yu Chengxin 
Published: April 2020

Abstract
In this paper, the similarity material model is conducted to investigate the movement law and failure pattern of the super-thick weak cementation overburden. In addition, the photographing scale transformation-time baseline parallax (PST-TBP) method and the Xi’an Jiaotong University Digital Close-range Industrial Photogrammetry System (XJTUDP) software were used to monitor similarity material model. The findings can be summarized as follows: (1) To some extent the PST-TBP method can make up for the deficiency of the XJTUDP software because its measurement accuracy is about 0.5mm; (2) The first breaking span of the immediate roof reached 240m, and the cyclic fracturing length was about 60m. It still shows the characteristics of the inadequate mining when the surface reaches fully mining. It needs more mining space to reach fully mining; (3) The (PST-TBP) method and the XJTUDP measurement system provide technical support to study the dynamic development process of regional deformation caused by deep mining.
Study On the Melting And Corrosion Resistance of Fe-Cr-Si Dual Phase Alloy
Authors: Hu Lixiang , Hu Binsheng , Gui Yongliang 
Published: April 2020

Abstract
In this paper, Fe-Cr-Si multiphase alloy with both ductile and brittle phases was prepared by vacuum arc furnace with high purity powder mixture of Fe, Cr and Si as raw materials. The microstructure and properties of the alloy were studied by OM, SEM, and XRD. The experimental results show that Fe-Cr-Si alloy can be made into two-phase alloy, which mainly consists of ductile phase and Fe22Cr7Si10 brittle phase. It is found that the matrix has a higher iron content, lower hardness and higher chromium content in brittle phase. The silicon element is evenly distributed in the sample. The corrosion resistance of the alloy is very strong compared with 06cr19ni10 steel.
Study on the Morphology of the Streamer with Carbon Nanotube Electrode in Atmospheric Environment
Authors: Liu Xin 
Published: April 2020

Abstract
The low temperature streamer at atmospheric pressure has good characteristics of pollutant removal, and the characteristics of the streamer are closely related to the discharge conditions, and the structure and material of the electrode also affect the characteristics of the streamer. In our work, the argon gas was discharged under different conditions and the morphology of streamer was shoot by a high-speed camera, then the morphology of the streamer that generated by the carbon nanotube electrode was compared under the same conditions. The experimental results show that when the electrode is electroplated with carbon nanotubes, the light intensity and the diameter of the streamer will increase, and the morphology of the streamer that in the atmosphere will change regularly with the discharge conditions. The experiment proved that the morphology of the streamer will be influenced by the discharge conditions because of the electric and flow fields, and the carbon nanotube electrode will generate more intense streamer.
Fundamental Research on Electronic Image Recognition of Cylindrical Zno Nanorods Based on Deep Learning
Authors: Liang Yuzhou 
Published: April 2020

AbstractZnO is recognized as one of the most important photonic materials in the blue-violet region due to its straight-width band gap and large excitation bonding energy. Since ZnO nanorod array performs superior optical and field emission properties, a lot of efforts have been made in the fabrication of a vertically ordered ZnO nanorod array. The shape and size of ZnO nanorods have a significant effect on PEC property. In order to efficiently recognize and measure the shape and size of ZnO nanorods, a new method based on deep learning model mask r-cnn is proposed to detect cylindrical ZnO nanorods. The SEM images of ZnO nanorods were used as a data set for training. Adjust the size of the bounding boxes that model generated to make it more suitable for the data set. At the same time, improve the NMS (non-maximum suppression) algorithm to reduce the missing detection rate, and achieve a good detection effect on the SEM images of ZnO nanorods.
Zno SEM Image Segmentation Based on Deep Learning
Authors: Li Linmao 
Published: April 2020

Abstract
The radius of nanomaterials, which will affect the specific surface area of the nanowires and other functions, is important for the optoelectronic application of nanomaterials. The Scanning Electron Microscopy (SEM) is an effective method to observe the spatial morphology of nanowires. However, the current measurement of topographical features mainly uses manual methods, which will bring about instability errors, especially when measuring a large number of them. Deep learning provides an efficient, fast way to identify and segment nanowire SEM images. Through deep learning methods, the spatial characteristics of nanomaterials can be measured quickly, which aim to explain the relationship between features and radio and television applications from a statistical point of view. In this paper, we design a deep learning image recognition system to measure the radius.
Thermal Behavior and Molten Pool Morphology during Laser 3D Printing Process of Alloy Steel Powder
Authors: Zhao Minghuang , Duan Chenghong , Luo Xiangpeng 
Published: April 2020

Abstract
In this paper, a finite element analysis (FEA) model is proposed to systematically study the thermal behavior of metal material in Selective Laser Melting (SLM) 3D printing process. It is found that the material undergoes a fast and complex thermal cycle process. Laser beam can re-heat the adjacent formed scanning track and layer, and also produce a certain preheating effect on the unformed powder bed of the adjacent scanning track when laser beam scans a track, which is conductive to improve metallurgical bonding performance of SLM-fabricated parts. With the increase of scanning tracks or scanning layers, the peak temperature and molten pool lifetime increase owing to the thermal accumulation effect, but the increasing trend gradually slows down. The peak temperature and lifetime of each scanning track center in the second layer are larger than those of the corresponding scanning tracks in the first layer, respectively. Furthermore, SLM experiments are carried out to study complicated molten pool morphology in SLM process. The results obtained in this study have certain guiding significance for understanding thermal mechanisms of SLM process.
Microstructure and Magnetic Properties of Textured Barium W-Type Hexaferrite with Rare-Earth La3+ Substitution
Authors: Liu Qian , Wu Chongsheng , Wang Yu , Liu Yingli , Zhang Huaiwu 
Published: April 2020

Abstract
Textured M-type barium hexaferrites (BaM) in form of BaLaxNi2Fe16-xO27 (x = 0.0, 0.1, 0.2, 0.3, 0.4, and 0.5) were synthesized using a ceramic process. The effect of La3+ substitution on the microstructure and magnetic properties of the resulting BaW samples was investigated. Pure BaW phase formation for all samples was confirmed by the X-ray diffraction patterns. The scanning electron microscopy images revealed that the grains in the textured BaW had realigned along the hexagonal crystallographic c-axis, which was in good agreement with the results of magnetic hysteresis loops. Moreover, textured BaW with a high squareness ratio (Mr/Ms= 0.80) was obtained. Due to the La3+ substitution, the magnetocrystalline anisotropy field (HA) decreased dramatically while maintaining the c-axis anisotropy. The textured BaW are potential candidates for the design of self-biased microwave devices such as circulators and isolators operated at Ku or X band.
Synthesis of Two Kinds of Mesoporous Diatomite by Microwave Assisted Sol-Gel Method and Its Adsorption of Ammonia Nitrogen in Wastewater
Authors: Wang Guohe , Xu Yuanyuan , Wang Chenyi , Gao Yuchao , Li Linlin 
Published: April 2020

Abstract
The microwave-assisted sol-gel method was used to synthesize mesoporous diatoms (DM) and magnetic mesoporous diatoms (MDM), and used as adsorbent to remove ammonia nitrogen from water. The effect of reaction time, solution pH, and initial concentration of ammonia nitrogen on adsorption was studied, and the adsorption Kinetics and thermodynamic characteristics of DM and MDM were analyzed. The results showed that at 25 °C, when the dosage of DM and MDM was 4 g/L, the initial concentration of ammonia nitrogen in the solution was 50 mg/L, the value of pH was 7, and the adsorption time was 30 min, the adsorption of ammonia nitrogen in solution by DM and MDM was 6.95 and 7.79 mg/g, respectively. DM and MDM had good adsorption effect on ammonia nitrogen, and the adsorption process complied with the Pseudo-second-order kinetics equation and Freundlich isothermal adsorption model.
Multi-Cation Blue Perovskites Light-Emitting Diodes with Enhanced Luminescence
Authors: Wu Yongwei , Yang Guang , Jiang Pei , He Bo , Duan Miao , Yin Yongming , Li Dongze , Chen Shujhih , Zhou Hang , Lee Chia-yu , Zhang Shengdong 
Published: April 2020

Abstract
2D perovskites, typically with a standard formula of L2An-1MnX3n+1, have recently attracted significant attention due to their promising optoelectronic properties. Normally, they contain a mono cation (e.g., butylammonium (BA+) or phenylethylammonium (PEA+) for “L” and methylammonium (MA+) or formamidinium (FA+) for “A”). In this work, multiple cation-substitution strategy was used to improve the luminescence and emission efficiency of perovskite thin films. As a result, brightly blue emission with a high photoluminescence quantum yield of 26% was achieved. Finally, the according perovskite light-emitting diodes reached a brightness of 110 cd/m2, and a maximum external quantum efficiency of 0.79%.
Design and Construction of Protective Coating for Qiongle Concrete Expressway Bridges in Hainan Province
Authors: Zhao Qiuhua , Guo Tao , Lu Xiaoxia 
Published: April 2020

Abstract
Through analysing the characteristics of the corrosion environment where Qiongle concrete expressway bridges work, and its influence on the durability of the concrete structure, this paper made a comparison among common coating systems, and put forward a reasonable coating design scheme as well as the corresponding technical requirements. Focused on the problems encountered in the trial tests, solutions were proposed to ensure the coating quality, which enabled it to play a long-term and effective role in protecting the concrete structure under corrosive environment, avoiding or procrastinating the occurrence of durability disease, and ultimately improving the safety and durability of the concrete structure.
Lean-Production Development in Shoemaking Industry: A Case Study
Authors: Li Jing , Ding Kaifang , Zhu Yongming 
Published: April 2020

Abstract
It was generally found in most SMEs of China that there are many difficulties in on time delivery. Based on the study of bottlenecks theory and other relevant theories, we proposes an improvement model. First is the identification of the bottlenecks by pinpointing the relationship between customer demand and the actual capacity of the enterprise. Then is the analyzation of the factors that restrict the bottleneck productivity and the construction of the corresponding ISM, and the improvement tools of IE is used to break through the bottlenecks. Once the bottlenecks drift out of the production chain, the use of VSM finally eliminates waste within the enterprise. Taking H as a case study, the value-added rate of the value stream increased by 5.84% through the application of the above improvement model.
Study on the Preparation of Modified Polypropylene Fiber Reinforced Cement-Based Composite
Authors: Ma Jun , Sun Yuanbao , Jiang Xufeng , Li Leibo 
Published: April 2020

Abstract
The concentrated HNO3 is applied to carry out the surface modification of polypropylene fibers for the preparation of PP fiber reinforced concrete composite. The modification effect of the oxidation reaction is evaluated by the mechanical testing of the PP fiber reinforced concrete composite. The stretching vibration of O-H and C=O bond centered at the wave number of 3300 cm−1 and 1720 cm−1, respectively, indicates the oxygen-containing groups are generates on the surface of the modified polypropylene fiber. The contact angles of the modified polypropylene fiber are also significantly reduced to about 81°, compared with the untreated polypropylene fiber (112°). SEM analysis suggests that the corrosion effect of HNO3 modified polypropylene fiber on the surface is quite obvious since the surface becomes very rough and has grown pore structure near the surface area. Finally, the modification PP fiber reinforced cement composite has an increment of 11.5% on the fracture strength properties compared by the untreated PP fiber. The results indicated that the oxidation process by the concentrated HNO3 could substantially improve the mechanical properties of modified PP fiber in the concrete composite. The reason should be the elevated hydrophilic properties of the modified PP fiber improve the interface bonding strength which is crucial for the performance of the composite.