bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study on Quality Characteristics and Feasibility Analysis of Hail-proof Plastic Bagging of 5000 Mu in Gansu
Authors: Gou Xiaoping , Zhang Wanjun , Zhang Jingxuan , Zhang Jingyi , Zhang Jingyan 
Published: March 2020

Abstract
The effects of bagging of bare fruits, plastic bagging, hail-proof plastic bagging and bagging on the quality of red Fuji apples in different periods were studied. Red Fuji apples in Qingyang City of Gansu Province were used as test materials to determine the fruit quality indices of bagged and bagged apples in different periods, such as light consistency, color, and fruit firmness, total sugar, reducing sugar, sucrose and total acid. With the postponement of bagging period, apple fruit surface smoothness, color and hardness gradually decreased, while total sugar, reducing sugar and sucrose content gradually increased. With the delay of bagging time, the smoothness of apples decreases. Total sugars, reducing sugars and sucrose had the same growth and decline pattern as those of fruits without bagging, but their contents were always lower than those of the control. Hail-proof Apple plastic suction bagging has been proved by a lot of research and experiments that this kind of apple bagging has the characteristics of low price, fast bagging speed and reusability. It can also prevent and control diseases, insects, birds, rats, bees and other harmful effects on fruits and reduce fruit rust. It can also avoid friction between branches and leaves, prevent sunburn and reduce hail. At the same time, bagging efficiency is fast, improving work efficiency, reducing environmental pollution and reducing the workload of fruit growers.
Detection Technology of Aflatoxin Content Based on Smart Phone
Authors: Pan Zhengkun 
Published: March 2020

Abstract
Grain and agricultural products contaminated by AFTB1 have a strong carcinogenic effect that may damage people’s health. Rapid and effective screening of agricultural products contaminated by AFTB1 is an effective measure to ensure food safety and body health. This paper analyzes the fluorescence characteristics of AFTB1, and designs a smart phone detection system composed of portable optical device and smart phone detection software. The portable optical device uses ultraviolet light LED as an excitation source to excite fluorescence, and uses smart phone’s CMOS image sensor to collect fluorescence. It is convenient to connect with the CMOS image sensor with the help of portable optical device, thereby realizing image storage, processing and transfer of the observed object. The software developed for image acquisition and data processing on the smart phone can analyze and process the fluorescence image of AFTB1, obtain the fluorescence concentration of AFTB1 measured, and display the AFB1 content data, to achieve quantitative detection of AFB1.
Theoretical Calculation and Analysis of Coherent Interfacial Energy between B1-Type Carbides and FCC Iron Matrix
Authors: Jia Bin , Ma Hongru , Peng Yan 
Published: March 2020

Abstract
The valence electron structures (VES) of unit cells of the FCC iron matrix (γ) and B1-type carbides (ξ) in γ-Fe-M-C alloy systems (M=Nb, Ti, and V) were calculated using the empirical electron theory of solids and molecules (EET). Based on the results, the coherent interfacial energy between B1-type carbides and FCC iron matrix in γ-Fe-M-C alloy system was calculated and analyzed by combining EET and the discrete lattice plane-nearest neighbor broken bond (DLP-NNBB) method with covalent bond energy. The results showed that the solid solution strengthening effect was produced by the solute phase boundary segregation of the alloy elements at the γ/ξ interface, which enhanced the covalent bond network. The Nb alloy system had the largest segregation effect in γ-Fe-M-C alloy system. Moreover, the γ/ξ interfacial energy varies with different alloy elements over the range of 0.4-1.3 J/m2, and the γ-Fe-Nb-C alloy system has the largest coherent interfacial energy.The proposed theoretical method is consistent with the theoretical values calculated using other models, as well as empirical values. This indicates that the method proposed in this work is feasible for providing theoretical analysis and guidance.
Effect of Diameter Expansion Ratio on Recovery Properties of TiNiFe Alloy Pipe Coupling
Authors: Wang Xin , Li Yanfeng , Hui Songxiao , Ye Wenjun , Yu Yang , Song Xiaoyun , Liu Rui , Luo Yumeng 
Published: March 2020

Abstract
The reverse transformation temperature, recovery strain and pull-out force of TiNiFe alloy pipe couplings under different diameter expansion ratios (7%, 9%, 11%, 13%, 15%) were studied. The results show that the martensite reorientation occurs and the elastic strain energy released decreases with the increase of the expansion ratio, which leads to the increase of martensite reverse transformation temperature as’ and Af’. The recovery strain increases and the recovery rate decreases with the increase of expansion ratio. The expansion ratio of pipe couplings has a great influence on the pull-out force, which is related to the fit clearance and the diameter of the connected rod. When the fit clearance is the same, the larger the expansion ratio is, the greater the pull-out force is, and when the diameter of the connected rod is the same, the pull-out force decreases with the increase of the expansion ratio.
Effect of N2 Jet on Si Electrode Surface in Dielectric Barrier Discharge
Authors: Wang Changquan 
Published: March 2020

Abstract
In order to investigate the effect of discharge gas jet on electrode surface, some dielectric barrier discharge (DBD) experiments were carried out on a laboratory-built DBD system using monocrystalline silicon (Si) electrode in air with or without N2 jet. The effects of N2 jet on Si electrode surface are analyzed by means of field emission scanning electron microscope (FESEM) and energy dispersive X-ray spectroscopy (EDS) attached to FESEM. The results show that Si electrode surface roughness and oxidation with N2 jet are increased more than without N2 jet. It can be used for texturing solar cells surface to improve power conversion efficiency.
A Reinforcement-Algorithm Framework for Automatic Model Selection
Authors: Shang Diya , Sun Hua , Zeng Qingliang 
Published: March 2020

Abstract
In recent years, with the development of artificial intelligence, how to realize the automation of machine learning has become a very popular research item. Among them, automatic model selection is an important part. For traditional machine learning, the part of the feature preprocessing, feature selection, model selection and so on are all needed manual processing, and they will take too much time and human resource, so automatic model selection is proposed to reduce resource waste. The automatic model selectionis based on the feature distribution of the data, and the model can be trained to obtain a model with better performance. This paper proposes an automatic model selection framework based on reinforcement learning. The framework can be divided into two phases, one is data preprocessing stage, which uses meta-learning to process; the other is model se lection framework, including feature preprocessing, feature selection and model selection. These three aspects will be the environment of reinforcement learning, through which a model with the highest accuracy can be chosen as the predictive model output. It has been proved by experiments that the method is effective.
Disturbance Observer-Based Path Following Control of Unmanned Surface Vessel with Control Input Saturation and Unknown Disturbance
Authors: Xie Yangliu , Luo Fuyu , Zeng Jiangfeng , Liang Xu , Guo Xiaoye 
Published: March 2020

Abstract
This study proposes a nonlinear disturbance observer-based path following control scheme for unmanned surface vessel (USV) in the presence of input saturation and unknown external disturbance. The dynamic surface control (DSC) framework is augmented by a robust adaptive radial basis function neural network (RBFNN) and a nonlinear disturbance observer (NDO). The control strategy can avoid the differential explosion problem inherent from traditional backstepping approach. The boundary value of the estimated disturbances that are presented in a number of existing disturbance observers is relaxed.
Numerical Simulation Study on Progressive Extrusion Forming Process of Clutch Hub Gear
Authors: Jia Yangyang , Kou Shuqing , Yan Yifan 
Published: March 2020

Abstract
The extrusion forming process of the clutch hub gear with uneven thickness and small fillet is studied. The numerical simulation is used to analyse the thinning process of the hub gear and the filling of the small fillet. The results show that progressive extrusion has lots of advantages in contrast to conventional one step extrusion in improving metal flow and deformation uniformity, reducing forming load, improving fillet filling and forming quality.
Research on Thermal Endurance Properties of XLPE Aged in Different Media
Authors: Lv Hong , Yang Kunpeng , Xiao Xiang , Kuang Guowen , Yu Shihu , Kang Hongwei , Jin Haiyun 
Published: March 2020

Abstract
In this paper, XLPE samples were placed in air and silicone oil for thermal aging, respectively. Besides, the samples were tested by differential scanning calorimeter (DSC) and thermogravimetric analysis (TGA). Then the thermal endurance properties of XLPE were also investigated. The results show that the variation of the thermal endurance properties of XLPE with aging time was highly related to the content of antioxidants in the samples. When the content of antioxidants was above the critical value, the melting temperature and initial decomposition temperature of XLPE just drop slightly and the variation of the melting temperature and initial decomposition temperature is irrelevant to the heating media. In contrast, when the content of antioxidants was below the critical value, the melting temperature and initial decomposition temperature of XLPE aged in air would drop sharply. In addition, when the samples are aged in silicone oil for a long but limited time, the variation of thermal endurance properties is close to the results of running cables.
System development and structure analysis of intelligent material handling robot
Authors: Li Yiqiang , Zhen Rui , Lu Weizi , Wang Shixin , Feng Yiran 
Published: March 2020

Abstract
This paper analyzes the current popular machine vision modules and various manipulator in the market. It independently realizes the reading of two-dimensional code information, the recognition of material color and shape, and the intelligent grasping system of grasping. By screening the existing commercial motors and the whole positioning system composed of orthogonal encoder and all-directions wheel, it realizes the positioning and moving system that can plan the path autonomously. It realizes self-reading information, identifying, grabbing and stacking materials through the combination of the above systems. This paper uses MATLAB software to calculate and adjust the positioning speed and position, and carries out the overall design and three-dimensional modeling of the robot for the above modules, and it performs static load analysis on the main components of the robot through the Solidworks Simulation module, and performs simulation experiments. After summarizing the function integration of the robot, the author puts forward the application of scenario hypothesis, proposes the application promotion scope for this scenario hypothesis, and conducts the simulation experiment. The results show that the robot is simple in design, easy to implement and conduct mass production, and it is practical and reliable, and has good positioning, grabbing and recognition effects. It can be widely promoted in the field of automation.
Compression and Enhancement of Multiscale Vibration Signals Based on Φ-OTDR
Authors: Zhang Yue , Wang Song , Hu Yanzhu 
Published: March 2020

Abstract
Phase optical time domain reflection (Φ-OTDR) is a distributed optical fiber sensing technology. Its output data contains amplitude, time and other information, so it can accurately reflect various abnormal events. However, due to the high sampling frequency and the large number of sampling points, the amount of data of the vibration signal outputted by it is huge. In order to facilitate the analysis of signal features and optimize the storage space of data, this paper combines Fast Fourier Transform and multi-scale detail enhancement to enhance the vibration signal features while realizing the vibration signal compression.
Research on Noise Reduction of Φ-OTDR Signal Based on Blind Source Separation Algorithm
Authors: Zhang Yue , Wang Song , Hu Yanzhu 
Published: March 2020

Abstract
Optical fiber sensing has become an important means of health and safety monitoring of large buildings and facilities due to its better sensing characteristics. Undesirable noise signals are inevitably generated during actual sensor data acquisition. This paper focuses on the noise reduction processing of optical fiber Φ-OTDR vibration signal. Firstly, the acquired signal is preprocessed with data, then the data is independently correlated, and finally the FastICA algorithm in blind source separation is used to filter the noise signal. In this paper, the traditional wavelet transform algorithm is compared to reduce noise. The experimental results show that the blind source separation algorithm has better separation effect on fiber vibration signals.
The Design and Research of High-Rise Building Reinforced Concrete Structure Based on BIM
Authors: Sun Kaike , Ni Xiaowen , Liu Peng , Dong Shijuan 
Published: March 2020

Abstract
In recent years, the application of BIM technology for the AEC field in China is in the ascendant, the theory and application research continue to deepen, and the standard compilation work is carried out in an all-round way. Promoting the application of BIM has become the consensus and unified action of the government, industry and enterprises. The structure stability of the surrounding has been a practical problem in high-rise building concrete structure, and then conduct an analysis of the detailed model. The evolution process of design model has been clear through the analysis of the data model, at the same time, through the research of detailed the design process has established the model of business architecture, clear the orientation and function of the structure design BIM model. At the same time, the business structure of the model is established through the study of detailed design process, and the positioning and role of BIM model in detailed design of structure is clarified. On this basis, the detailed design software was developed combined with China’s reinforced concrete structure design standards and structure atlas.
Study on Corrosion Resistance of Pulse Laser Welded Joints of Hastelloy C-276
Authors: Wang Ying , Du Lei , Liu Dawei , Xu Desheng 
Published: March 2020

Abstract
Laser welding is an ideal method to join hastelloy C-276 for the good characters. Presently, there are few studies on corrosion resistance of the weld joint of hatselloy C-276. The corrosion resistance of hastelloy C-276 pulse laser welded joints was studied in this paper. The results of the electrochemical testing both in neutral and acidic solution show that the corrosion resistance of the weld is better than the base metal. The microstructure was analyzed by using SEM, EDS and XRD, it is found that the grain of the weld obviously is refined and the size reduces to 2-5μm, which is benefit to the corrosion resistance, and slight micro-segregation of Mo occurs and no second phase formation in the weld which has little effect on the corrosion resistance. The change of the microstructure makes it that the corrosion resistance of the weld is superior to that of the base metal.
Degradation of Humic Acid by Ferrous Ion Activated Persulfate
Authors: Zhang Qinqin , He Xu , Ding Shimin , Feng Xianghua , Yu Youqing 
Published: March 2020

Abstract
The persulfate anions (S2O8
2™) can be activated by Fe2+ to produce sulfate radicals (·SO4
−) and hydroxyl radicals (·OH), which can oxidize organic compounds rapidly. Humic acid (HA) is widely found in nature and is the main limiting factor for high-concentration wastewater discharge. In this study, HA was treated by Fe2+/S2O8
2™ system, the effects of initial pH, concentrations of Fe2+, persulfate (PS), and HA on the removal efficiencies of HA and E3/E4 were discussed. Besides UV254 and UV280, we found that UV250, UV270, UV300, UV365, UV400, UV436 and UV465 can effectively quantified the concentrations of HA, providing more HA characterization methods. When the initial pH was 3.0, the concentrations of PS and Fe2+ were 100 mmol/L and 20 mmol/L, respectively, the removal efficiency of HA reached 72% after 5 minutes, indicating that PS/Fe2+ effectively degrade HA, and E3/E4 increased from 2.6 to 5.75, suggesting the molecular weight and aromaticity of HA decreased. The removal efficiencies of HA increased as the concentrations of Fe2+ and PS increased, while the removal efficiencies of HA decreased as the initial concentration of HA increased. The addition of hydroxylamine hydrochloride (HAH) in Fe2+/S2O8
2™ system, could effectively promoted the Fe3+/Fe2+ circulation and reduced the accumulation of Fe3+, and strengthened the removal efficiency of HA. The research results indicate that Fe2+/S2O8
2™ oxidation is a promising technique for the treatment of HA in wastewater.
Breast Tumors Multi-classification Study Based on Histopathological Images with Radiomics Approach
Authors: Zhao Shuang , Wei Guohui , Ma Zhiqing , Zhao Wenhua 
Published: March 2020

Abstract
Breast cancer is the most common malignant tumor in women. It has important clinical significance for the automatic classification of breast tumors, and the current research mainly focuses on the benign and malignant classification of breast tumors. In this paper, we proposed a radiomics method for multi-classification of breast cancer. By the radiomics method, 212 features were extracted for quantifying breast tumor images’ intensity, color and texture and a multi-classification diagnosis model of breast tumors was constructed by support vector machines (SVM). The breast tumors were divided into eight categories, these eight categories include adenosis, fibroadenoma, phyllodes tumor, tubular adenoma, ductal carcinoma, lobular carcinoma, mucinous carcinoma, and papillary carcinoma. Final, the classification accuracy reached 90.3%. The radiomics approach provides an auxiliary role for developing the best treatment plan for breast tumors.
Determination of Arctiin in Fengre Ganmao Granules by Capillary Electrophoresis
Authors: Zhao Meili , Liu Haixing , Zhang Zongbao , Wang Lintong 
Published: March 2020

Abstract
This paper investigated the determination of arctiin content in Fengre Ganmao granules by high performance capillary electrophoresis (HPCE) method. The borax solution of 37.5 mmol concentration containing 12.5% methanol was chosen as buffer solution. The experiment was performed at a constant voltage of 16 kV and UV detection wavelength of 277 nm. The content of arctiin in Fengre Ganmao granules was 10.307mg/g (RSD=5.8%) (n=6). The recovery was in the range of 90.5%-115.1% (n=5). This method is suitable for the detection of the content of arctiin in Fengre Ganmao granules.
Modeling and Simulation of Multi-Material Soldering Performance for Spacecraft
Authors: Zhang Bin , Wang Dongmei , You Yiliang , Liu Wei , Zhao Shuping , Zhao Peirong 
Published: March 2020

Abstract
In recent years, there have been several on-orbit failure cases of spacecraft thermistor circuit. Through the analysis of failure mode, it is confirmed that the failures are mostly caused by the failure of wire solder joint. In this paper, the finite element method (FEM) is used to simulate the effects of different soldering parameters on the stress-strain characteristics of spacecraft solder joints in cold-hot alternating environment.
Design and Implementation of Wireless Transmission System Based on Zedboardand AD9361
Authors: Cai Wenjun , Wang Guofu , Ye Jincai 
Published: March 2020

Abstract
With the development and application of software radio technology, WLAN communication protocol shows great advantages. This design uses Zedboardsystem board and AD9361 radio frequency board to build software radio platform, designs a point-to-point wireless transmission system based on COFDM. The experimental results show that the system can transmit data stably.
Effect of Dielectric Parameters and Frequency on Temperature Field of Microwave Curing of rubber compound
Authors: Ye Ruzhou 
Published: March 2020

Abstract
This paper aims to predict the heating behavior of rubber samples based on finite element methods using comsol multiphysics software. The effects of frequency and dielectric parameters on the temperature distribution of the stratified and non-layered models were investigated. The dielectric parameters mainly affect the temperature of the temperature field, and the influence on the temperature field distribution is relatively small. The temperature state of the tire surface distributed by different frequencies is not exactly the same. When further studying the influence of frequency on temperature distribution, the combined frequency of 915+2450MHz is selected in the double-waveguide cavity model, and the temperature field distribution is optimal. The power selected at this time is 1000w+1000w. The average temperature of the layered model is higher than that of the non-layered model, and the temperature difference is larger. The research results can provide reference for the research of heating rubber composites in microwave heating systems.
Gallbladder-warming Decoction with Bupleurum and Scutellaria inhibits Anxiety and Depression of Rats
Authors: Sun Ning , Ren Yumei , Wang Mingyu , Miao Xinyan , Meng Zhiyong , Wang Chaobo , Yuan Xiaolong , Wang Liang , Fu Chen , Zhang Weiguang , Zhang Donghan , Cheng Ran , Wang Pengyu , Yang Hao , Qi Binbin , Li Yuzhu , Cai Ruijuan , Li Xiaobing 
Published: March 2020

Abstract
Objectives: To search the behavioral effect of Gallbladder-warming Decoction with Bupleurum and Scutellaria (GWBS) on anxiety and depression model rats and explore its mechanism. Methods: Twenty SD rats were randomly divided into four groups with 5 in each group: blank control group, model group, weastern medicine group and GWBS group. The unpredictable chronic emotional stress method was used to induce anxiety and depression of model rats. Rats in weastern medicine group were given diazepam at 0.26 mg/kg/d and the 5 rats in GWBS group were given GWBS at 11.5g/kg/d, otherwise, the other two groups were given the same volume of normal saline once a day. The experiment lasted for 10 days, during which the general state including body weight, hair color, activity level and so on were observed and the data were recorded. The results of sucrose consumption test and the light-dark box test were also recorded during the ten days. After the experiment, the changes of histological pathologic in the hippocampus were examined, and the γ-aminobutyric acid concentration of the rat hippocampus was detected using ELISA kit. Results: Pathological results indicated that GWBS improved pyramidal cells in hippocampus keeping the disordered arrangement. In comparison of the model group, the body weights of the weastern medicine group and the GWBS group apparently increased. Besides, the retention time of the light box was significantly prolonged and the concentrations of γ-aminobutyric acid in the hippocampus were significantly promoted in the two groups. The differences above were with statistical significance (P<0.05). In addition, the sucrose consumption values were improved markedly. Conclusion: GWBS, the agent of relieving the depressed liver and resolving phlegm, makes a difference in treatment of anxiety and depression rats and its mechanism may be related to the increase of GABA concentration in hippocampus.