bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on the Method of Wire Impact Suspension Type Spanning Frame
Authors: Jia N , Xia Y J , Wan J C , Hu Y S 
Published: August 2019

Abstract
With the intensive construction of the UHV DC transmission project, the hidden dangers of the wire running line impacting the suspension type spanning frame are gradually increasing, and the dynamics of the wire-to-suspension type spanning frame is rarely studied in depth. In this paper, the dynamic response of the wire to the suspension type span at different heights is studied. It is concluded that as the height of the wire increases, the value of the main stress received by the wire rope is gradually increased when the net is hit. The greater the vibration that the net is subjected to, the slower the main stress of the netting rope decays with time.
QUV Accelerated Aging Effects on the Structure and Properties of Polyether Polyurethane Fibers
Authors: Zhong Yanping , You Gexin , Cai Sidi , Yang Bo 
Published: August 2019

Abstract
This paper presents an experimental study about the effects of UV irradiation on polyether polyurethane (PU) fibers investigated by FTIR, SAXS and AFM, and the multiple mechanism is finally proposed.The results show that, at low UV irradiation (0.6W/m2, 0.9W/m2), the mechanism responsible for UV degradation of polyether PU fibers could be described as a primary reaction causing the break up of chemical bonds and forming the new quinone structure, along with a secondary reaction to explain hydrogen peroxide formed in the presence of UV irradiation, water and oxygen environment which promotes QUV aging by providing loose structure of polyether PU fibers. Moreover, the micro phase separation is promoted for a parallel reaction occurred to produce new polyether PUs and more compact micro domains by the residual isocyanate in pre-polymerization stage and alcohols formed under QUV aging. Under higher UV irradiation (1.2W/m2, 1.5W/m2), in addition to the primary reaction, a tertiary reaction showing the re-polymerization occurred under accumulation of aging products (carboxylic acids and alcohols) is also considered as the mechanism, while the secondary reaction would be inhibited for the peak assigned to H2O2 is not observed. Also, this decreases micro phase separation of polyether PU fibers for the primary reaction is dominant.
Synthesis and Properties of 2-Acrylamide-2-Methyl Propane Sulfonic Acid -Graft-Guar
Authors: Du Xiaowei , Wang Pengyuan , Liu Jianye , Niu Chunmei 
Published: August 2019

Abstract
2-acrylamide-2-methyl propane sulfonic acid (AMPS) was grafted onto guar macromolecules using biodegradable guar as raw material, persulfate potassium (K2S2O8) and sodium sulfite(Na2SO3) redox system as initiators. The different influence factors on graft reaction were investigated to determine the ideal reaction conditions. The sulfonated guar with high viscosity has good salt resistance, compatibility and stability with the toothpaste components, which can improve toothpaste tailing phenomenon and meet the requirements of water-based adhesive and thickening agent in other industries.
The Analysis and Design of Small Air Purifier
Authors: Zhu Zhiwei , Jin Hongyan 
Published: August 2019

Abstract
This design is positioned in the outdoor air environment is increasingly deteriorated premise through the improvement or redesign, to improve people’s workplace environment for desk type air purifier; and stylish innovation to meet the fast-paced city life crowd physiological and psychological needs to improve the quality of life and work purposes. Innovation of a product, in addition to hoping to facilitate people’s lives, but also hope to gradually change the way people live and work to improve people’s spiritual pursuit, promoting the formation of the concept of healthy living, create a harmonious and warm office environment.
Effect of Fly Ash and Silica Fume on Mechanical Properties of High-Performance FRCC
Authors: Pan Zhang , Zeng Xiaohui , Hu Zhongwei 
Published: August 2019

Abstract
Based on the development and application of high-performance FRCC (Fiber Reinforced Cementitious Composite), the effect of different content of fly ash and silica fume on the compressive strength, flexural strength and toughness of high-performance FRCC is studied. The results show that the addition of fly ash and silica fume significantly affects the mechanical properties of high-performance FRCC. The specific optimization content with 50% ash and 15% silica fume can make the flexural strength of high-performance FRCC up to 19.5MPa, the compressive strength to75.2MPa, and the ratio of bending strength to compressive strength to about 0.26. Compared with ordinary fiber reinforced cementitious composite, its flexural strength and compressive strength are increased by 35% and 40% respectively and the ratio of bending strength to compressive strength is increased by about 6%. It can be seen that the optimization mixture can significantly enhance the compressive strength, flexural strength and toughness of high-performance FRCC and may provide reference for practical use.
Study on Substation Seismic Resilience Evaluation Index and Resilience Matrix
Authors: Liu Rushan , Hu Zhenxiu , Shu Rongxing 
Published: August 2019

Abstract
This paper proposes a seismic resilience grading method for 110Kv and above high-voltage substations, and establishes a quantitative index for evaluating the substation seismic resilience --- seismic resilience index, presents a calculation formula for substation seismic resilience index which takes the respective weight coefficients and seismic damage indexes of buildings and high-voltage electrical equipment as the parameters, determines the relationship between the resilience index and the resilience grade, and establishes the substation resilience matrix through making statistics of actual seismic damage and recovered samples of the substations. The results show that with the decrease of resilience index, the resilience of substation becomes worse and worse. When the resilience index is lower than 0.45, the substation reaches the threshold of extremely difficult to recover. The higher the seismic intensity is, the lower the resilience is, and the longer the recovery time is. In 9 degree seismic intensity region, the substation resilience index begins to decrease rapidly, most substations are recoverable and difficult to recover, and the substations in 10 degrees and above seismic intensity region are extremely difficult to recover.
A Wide Range of pH-Sensitive Fluorescent Probe based on Responsive Double Hydrophilic Block Copolymer for Real-Time Intracellular pH Sensing in Water Samples
Authors: Zhou Zijuan 
Published: August 2019

Abstract
In this work, a wide range of pH-sensitive fluorescent probe has been designed by the responsive double hydrophilic block copolymer (DHBCs), which containing the fluorescein (Methacrylic salicylaldoxime, SHMa) and rhodamine (Rhodamine B methacryl hydrazide, RhSAMa) derivatives in the DHBCs. The pH-sensitive fluorescent probe gave blue and red fluorescence emissions at basic pH and acidic pH, respectively. Moreover, the fluorescent probe exhibited changes in fluorescence intensity with an alteration of turbidity of the block copolymer induced by temperature. Furthermore, we have developed a model that combines with the mobile phone for quantitative and qualitative measurement of pH value. The color extract APP for real-time pH measurement in mobile phone was constructed and used to detect the pH of the water samples.
Study on Distribution Characteristics of Key Target Personnel Density and Earthquake Rescue Strategy
Authors: Liu Rushan , Yan Lupeng , Yan Dongqi 
Published: August 2019

Abstract
The first priority after a catastrophic earthquake is to carry out emergency rescue for people buried in collapsed buildings. Some large public buildings often have a high concentration of personnel and are the key targets for emergency rescue during earthquakes. This paper summarized four survey methods for the indoor personnel density of key buildings, carried out a sampling survey on indoor personnel density in different time periods in some schools, hospitals, shopping malls, and cinemas in Yanjiao District of Sanhe City in China using these methods, investigated the changing raw of the personnel density in these key target buildings within a period of one day and the changing characteristics of the personnel density in working days and holidays, compared the differences in the time distribution of the personnel density among different types of key targets, and initially explored the strategies and attention points of rescue for indoor personnel in different key targets at different original times of earthquake, thus providing reference for rescue decision-making of indoor personnel in key buildings in the event of a sudden disaster.
Non-isothermal Ageing of an Al-Mg-Si Alloy for Enhanced Anticorrosion Performance
Authors: Zheng Yaya , Luo Binghui , Wang Shuai , He Chuan 
Published: August 2019

Abstract
The effects of different heat treatment processes on the comprehensive properties of Al-Mg-Si were investigated. The results show that the microstructures changes by T6, T73 and non-isothermal aging (NIA) lead to different hardness and electrochemical properties. The β” strengthening phase of T6 alloy has fine dispersion, uniform size and maximum sensitivity to intergranular corrosion (IGC). The hardness of alloy crystal is the lowest after T73 treatment. The number of β” phases in the crystals of the NIA-treated alloy is the largest, but there is a small amount of coarsened β” phase, and the grain boundary precipitates are intermittently distributed. The IGC sensitivity is the lowest. The NIA-treated alloy has both high strength and good corrosion resistance, which is related to the formation of a large amount of precipitates in the crystal at low temperatures and the growth and coarsening of intergranular precipitates at high temperatures.
Three-Dimensional Pose Parameters Measurement of Air Target
Authors: Li Xinghong , Ji Taize , Ji Ren 
Published: August 2019

Abstract
In view of the present in aerospace measurement and control range, air vehicle in the field of Three-dimensional pose measurement problem, this system on the basis of inheriting the existing successful experience, using the theory of digital photogrammetry closely and the forefront of the computer vision result, proposed by sequence images of photoelectric theodolite film determines the attitude of the spacecraft three dimensional space plan, will change ever flight target as a particle processing, unable to get the current situation of the flight target Three-dimensional pose parameters, make full use of the measuring position and shape of image information, through the establishment of theodolite camera imaging simulation system, to predict the position of aircraft targets.
Influence of Hydroxyl Silicone Oil on Mechanical and Electrical Properties of Silicone Rubber-based ceramizable composites
Authors: Kuang Guowen , Yang Kunpeng , Tang Hongchuan , Li Yonglan , Li Qian , Li Penghu , Zhu Pengfei , Jin Haiyun , Gao Naikui 
Published: August 2019

Abstract
By introducing hydroxyl silicone oil into silicone rubber-based ceramizable composites(CSR), the structural problems of nano-silica in CSR are inhibited. The influence of hydroxy silicone oil content on the mechanical and electrical properties of CSR was investigated. And the chemical, physical and mathematical models were established to explain the influence mechanism. The results show that the hydroxy silicone oil inhibits the structural problem and improves the dispersion of nano-silica in CSR, which are contribute to the increases of tensile strength and elongation at break of CSR. And the volume resistivity decreases as to interface barrier decreasing, the loss factor decreases as to the decay of space charge polarization, the ac electric strength increases with mean free path of free charge decreasing. However, the relative permittivity of CSR is not sensitive to hydroxy silicone oil content.
Evaluation of the Effect of Paints Reproducing Ocean Color in Visible Light Range
Authors: Li Yumei , He Shufang , Liao Ningfang , Li Yasheng , Bai Xueqiong , Deng Chenyang 
Published: August 2019

Abstract
In order to achieve the goal that the paints can reproduce the real ocean color, the color reproduction effect of paints is evaluated in this paper. 15 paint blocks and three standard sea spectra including coastal water, medium sea and high sea were selected as experimental samples. The spectral reflectance of paints was measured by X-Rite Color-Eye 7000A spectrophotometer, which were used as the experimental data samples. Then the chromaticity value and spectral evaluation index of paint colors and ocean colors were calculated by using D65 light source and tristimulus value under 10 degree viewing field. At last, from the aspects of chroma and spectra, the analysis and evaluation were carried out. The evaluation results show that the combination of chroma evaluation and spectral accuracy evaluation can accurately evaluate the effect of paints reproducing marine color, which is of great significance to produce the paints reproducing real ocean color.
Transfer Behaviors of PFPE Lubricant from Disk Surface to Slider
Authors: Zhang C B , Ao H R , Zeng Q Y , Jiang H Y 
Published: August 2019

Abstract
The rapid growth in storage areal density of hard disk drive (HDD) forces the flying height of slider has been currently reduced to less than 2 nm. In such a narrow spacing, perfluoropolyether (PFPE) lubricant is easier to transfer from disk surface to slider under fluid force field and heat transfer field, which is found to have a great effect on date storage reliability. Firstly, the lubricant transfer volume expression with respect to lubricant molecular weight is established. Secondly, the finite element models (FEM) of both Tri-pad positive pressure slider and flat slider are developed, and based on this, the PFPE lubricant transfer behaviors in HDD are investigated. Finally, four type unite cells composed of lubricant molecules and air molecules are established by using Materials Studio software, then both dynamic temperature and diffusion coefficients are researched based on molecular dynamics theory. Results show that the PFPE lubricant amount decreases with increasing pitch angles, rotation angles, slider flying height and disk rotation velocity, while it increases when heat source power increases. The diffusion coefficients of ZTMD lubricant is the maximum in the four lubricants we researched, while the temperature change ratio of Z-15 lubricant is the maximum.
Growth Mechanism of Continuous Monolayer MoS2 Prepared by Chemical Vapor Deposition
Authors: Wang Wenzhao , Zeng Xiangbin , Guo Zhenyu , Ding Jia , Chen Xiaoxiao 
Published: August 2019

Abstract
Molybdenum disulfide (MoS2) is a cutting-edge layer-dependent two dimensional semiconductor which monolayer is direct-bandgap. Nano-scale monolayer MoS2 has big potential in electronics and optoelectronics devices. In this work we reported the progress in growing continuous single layer MoS2 by ambient pressure chemical vapor deposition (APCVD). Scanning electron microscope (SEM), Raman, photoluminescence spectra (PL) and atomic force microscopy (AFM) disclose that as-grown films are large-area monolayer and of high quality. SEM observations also clearly reveal the growth process of these films. Figuring out the growth mechanism grants growth of large scale continuous MoS2, and lays the foundation for wide device applications in the future.
The Study of the Polarization Errors of All Fiber Optical Current Transformers
Authors: Zhang Xingjian 
Published: August 2019

Abstract
In-line Sagnac fiber optical current transformer is a new kind of all fiber current sensors. By using the Jones Matrices formalism, the polarization errors of the FOT is studied. By using the Jones Matrices formalism, the expression of the main optical parts of the FOT are built, and the the expression of interference is got. The precision which is affected by the parameters of the main optical parts is analyzed.
Synthesis and Characterization of Chiral azo LCPs
Authors: Zhang Xuesong , Huang Yuejiao , He Xiaozhi 
Published: August 2019

AbstractPrecursor polymer MP series were synthesized by 4-allyloxybenzoic acid cholesteryl ester (M) and 4- hydroxyphenyl 4- (propionyloxy) benzoate (P). We obtained novel themotropic side-chain liquid crystal polymer MPZ series by esterification between MP series and 4-((4-ethoxyphenyl) diazenyl) benzoic acid (Z). Differential scanning calorimetry (DSC) was used to measure the thermal properties of those polymers, and the mesogenic properties were characterized by polarized optical micrograph (POM), DSC and X-Ray. MP series exhibited yellow, green, blue and purple Grandjean textures. MPZ series also showed colorful Grandjean textures. They exhibited thermotropic liquid crystal properties in a broad mesogenic region.
The Existence and Upper Bound of Periodic Solutions for Two-Coupled-Oscillator Model in Optics Chiral Molecular Medium
Authors: Shi Xiaoyue , Li Jing , He Bin , Zhu Shaotao 
Published: August 2019

Abstract
In this paper, we focus on the two-coupled-oscillator model in optics chiral molecular medium. We perform scale transformations for variables and study the existence of periodic solutions in detail for the two-coupled-oscillator system. We obtain the Melnikov function by establishing the curvilinear coordinate transformation and constructing a Poincaré map. Then the existence of periodic solutions of this oscillator system is analyzed when unperturbed system is Hamiltonian system. We apply them to discuss the upper bound of periodic solutions of this oscillator system and give the configuration of the phase diagram by numerical simulation. It has great theoretical significance to study the non-planar motion of the two-coupled-oscillator system for analyzing dynamic characteristics in optics chiral molecular medium.
Effect of Solvents of Quantum Dots on QLED Performance
Authors: Yang Min , Chang Chun , Zhang Wenjing , Liu Zilei , Zhang Qin 
Published: August 2019

Abstract
The QLED that we are making now, in addition to the evaporation of the a layer, the other layers are generally obtained by solution spin-coating. In our experiments, the selection strategies for quantum dots and adjacent layers of solvents were summarized. Based on these strategies, we selected the appropriate solvent to obtain high quality films, and in order to avoid the quantum dot film laye being corroded, and the surface having streaky defects, thereby hindering the high performance of the device. This solvent selection strategy provides a common method for preparing high quality films for most solution processed multilayer optoelectronic device.
Flow Field Characteristics in the Combustion Space of a Float Glass Furnace with Co-combustion of Heavy Oil and Petroleum Coke
Authors: Mei Shuxia , He Feng , Xie Junlin , Jin Mingfang , Zhong Liyang , Wang Zhimin 
Published: August 2019

Abstract
A numerical simulation was carried out for the combustion space of a float glass furnace in which the heavy oil and petroleum coke were co-fired. The characteristics of gas flow in the combustion space and its influence on the temperature distribution were analyzed. The research shows that after the combustion air coming from inlet 2 to inlet 6 respectively enters the flame space, it flows toward the outlet, and forms a relatively straight “flame” after the fuel is completely burned, eventually forming five high-temperature zones with wide coverage; when the flue gas generated by the combustion reaches the outlet, a part of the flue gas from inlet 2 to inlet 4 is deflected to the left, and a recirculation zone is formed above the batch material zone at the left end, and the O2 is diluted, so that the fuel at No. 2 zone is not sufficiently burned, resulting in a temperature region being significantly lower than other regions; A part of the flue gas at No. 5 and No. 6 is deflected to the right, forming a recirculation zone above the clarification zone at the right end, so that the combustion at No. 7 is insufficient, resulting in a lower temperature zone at that place, but the influence is weaker than that at No. 1, so the temperature peak at No. 7 is slightly higher than that at No. 1.
Practice of Trajectory Control Technology for Directional Wells with Small Deviation in Yan’an
Authors: Ma Chao , Gao Baokui , Wang Lisong , Hu Tianxiang , Wang Jieli 
Published: August 2019

Abstract
The well track irregularity, azimuth drift, and slow ROP are severe problems in the build and maintain angle sections of wells on An 7 platform. By analyzing the influences of structure factors of steerable assembly with one bend on the guiding ability, the stabilizer counts, positions and outer diameters in assembly is optimized. The BHA scheme which is suitable for small inclined directional well is proposed. Results show that some measures can be implemented, such as 1) predicting “azimuth advance angle” in directional drilling and 2) drilling 4-6m by sliding then drilling 3-5m by composite method during angle building process. These findings can improve the pertinence and operability of BHA, and enhance the ratio of composite drilling footage.
Preparation and Gas Sensitivity of Two-Dimensional Tungsten Oxide Supported High Density Gold Nanoparticles
Authors: Hui Fei , Chen Yanhui , Zhou Quan , Wang Chunhui , Qi Meng , Li Wei , Yang Luyan , Li Ang 
Published: August 2019

Abstract
Nano-noble metal materials loaded metal oxide greatly reduce application costs, improve catalytic performance and sensing efficiency compared with oxide substrates. A simple and efficient load method plays an important role in promoting its commercialization. Nano-tungsten oxide is a kind of excellent gas sensing materials and it had been widely used. Noble metal loading can form abundant active centers on the surface of tungsten oxide and become an effective way to improve its gas detecting performance. The complexity and high cost of the loading methods hinder the its application and commercialization on supported catalysts. In this paper, Au/WO2.6 composites with high loading rate were prepared on layered tungsten oxide nano-flakes by a simple and low-cost method. The gas sensitivity of WO2.6 to ethanol and formaldehyde without Au and with Au were tested. The results show that the loading rate is the highest after reaction for 24 hours. The gas sensitivity of Au loaded WO2.6 is significantly improved. The sensitive mechanism on Au/WO2.6 composite were discussed in our work.
Properties and Performance of General Piezoelectric Materials on a Novel Cantilevered Energy Harvester
Authors: Gao Shan , Ao Hongrui , Jiang Hongyuan 
Published: August 2019

Abstract
Piezoelectric materials are held wide attention for they introduce a renewable and convenient method on vibration energy harvesting technology. Many kinds of piezoelectric materials are investigated in the past few years. Different properties of the materials are discussed on the influences of power output. In this paper, a novel harvester are proposed to research the performance of different general piezoelectric materials. With vertically staggered rectangle-though-holes (VS-RTH) combined with the cantilevered energy harvester, modal and harmonic response analyses are simulated to test the properties of the materials. For further experimental preparation, fabrication of the material layers are introduced in detail. In addition, the charges generation mechanism is shown in the aspects of piezoelectric effect, mode and polarization. The paper lists parameters for general piezoelectric materials properties. Besides, it provides the vibration performance under different piezoelectric materials condition. Therefore, it could benefit further applications and selections of energy harvesting materials.