bluuebunny/crossref_metadata_2025_split huggingface dataset:
Integrated Evaluation Criteria of Economic Benefit and Energy Value Efficiency of Micro Grid
Authors: Wang Xudong , Qi Yan , Li Jinze , Nie Jingyu , Wu Binyang , Su Wanhua 
Published: April 2021

Abstract
An evaluation criterion of micro grid is proposed from the perspective of economy, energy conservation and emission reduction. The heterogeneous energy such as cold, heat and electricity based on the micro grid taking combined cooling heating and power as the core was evaluated based on the energy value through the cascade utilization of energy, and the micro-grid optimization model including the micro-turbine, waste heat boiler, lithium bromide absorption chiller, fan and photovoltaic was established. As compared with the model of cost optimization only, its integrated optimization index increased by 11.547% and the efficiency of exergy increased by 14.651%.
Design and Synthesis of CaMoO4 Microspheres and Their Optical Properties
Authors: Shen Wanyi 
Published: April 2021

Abstract
CaMoO4 microspheres materials were prepared by hydrothermal synthesis method using CaCl2 or Ca(NO3)2 and ammonium molybdate as reaction raw material at 170°C. XRD analysis shows that the product indexed to tetragonal phase of CaMoO4. FESEM images exhibit that the product is spherical and the diameter of the microsphere is about 5 μm. PL spectrum indicates that the photoluminescence emissions intensity of CaMoO4 depended on the morphologies and sizes of the products.
Preliminary screening of Salmonella in oral drugs by visual LAMP technology
Authors: Huang Xuchun , Zeng Chuanping , Niu Ling , Li Xiaotian , Chen Linzhu , Ma Guangqiang 
Published: April 2021

Abstract
Objective According to the Chinese Pharmacopoeia, Salmonella should not be detected in oral drugs. In this experiment, LAMP technology was used to detect Salmonella quickly, and the detection results were visible to the naked eye with calcein-Mn2+ dye, so as to provide pharmaceutical companies with the initial screening of drugs containing Salmonella. Methods Four primers (FIP, BiP, F3, B3) were designed to detect Salmonella by loop mediated isothermal amplification using inv A gene of Salmonella, and then the loop mediated isothermal amplification detection method was established. To verify the specificity of the method, LAMP detection was carried out on 10 kinds of laboratory preserved strains. The sensitivity of the method was obtained by detecting 10 times gradient dilution of Salmonella bacteria solution. Finally, the LAMP system of Salmonella was used to detect the oral drugs sold on the market and not tested by the Drug Administration, and the sensitivity of the system in the drug was determined. Based on these methods, Calcein-Mn2+ dye was added to test the availability of the dye. Results After optimization, the specificity of the system was good. For 10 different strains of LAMP detection, only Salmonella appeared trapezoidal band, and other strains did not detect the band; Through the experimental verification, the sensitivity of the system was 3.2 × 101 CFU/mL; The system was used for the oral drugs sold in the market and not passed the inspection of the drug administration The results of LAMP detection showed that no Salmonella was detected. However, the results of LAMP detection showed that there were trapezoidal bands in the test results. The sensitivity of the system in the detection of Salmonella in oral drugs could reach 3.8 × 101 CFU/mL. Adding calcein-Mn2+ dye into the system, the presence or absence of Salmonella can be distinguished by naked eye observation, and the detection limit is about 102 CFU/mL. Conclusion The visual LAMP detection system for Salmonella can be used for the preliminary screening of oral drugs containing Salmonella.
Adaptive Asymmetric Frequency Hopping Communication Scheme Based on Spectrum Hole Detection
Authors: Sun Bingcheng , Li JinFeng , Cui Hongfeng 
Published: April 2021

Abstract
With the development of frequency hopping communication, the problem of anti-jamming becomes more and more prominent, According to the techniques of spectrum estimation and spectrum holes detection in cognitive radio, a adaptive asymmetric frequency hopping communication scheme is proposed. More frequency points can be found between transmitting terminal and receiving end according to the result of spectrum hole detection, the transmitting frequency tables and receiving frequency tables can be dynamically altered in real time, the anti-intercepting and anti-jamming capability of communication can be improved, and the efficiency of the spectrum usage can be promoted. This thesis is helpful to anti-jamming research, analysis and design of AFH communication systems.
Controllable optical resonances and unidirectional scattering by core-shell nanoparticles
Authors: Dong Yiwei , Yang Yuanqing 
Published: April 2021

Abstract
Nanoparticles supporting a distinct series of Mie resonances have enabled a new class of nanoantennas and provide efficient ways to manipulate light at the nanoscale. The ability to flexibly tune the optical resonances and scattering directionality are particularly essential for various applications ranging from biosensing to nanolasers. In this paper, we investigate the core-shell nanoparticles that support both electric and magnetic Mie resonances and for the first time systematically reveal the mode evolution from a pure high-index dielectric nanosphere to its plasmonic counterpart. Abrupt mode transition and hybridization of Mie resonances are found in Ag-dielectric core-shell spheres when core-shell ratio increases from 0.4 to 0.5. Furthermore, by engineering the electric and magnetic resonances, we demonstrate the unidirectional forward and backward scattering in such a system and reveal its tunability via geometric tuning.
Effect Analysis of Laser Shock Peening on Nickel-based Alloys by Laser Solid Forming
Authors: Ma Wanli , Jia Changzhi 
Published: April 2021

Abstract
Laser solid forming has the advantages of rapid and complex shapes, but the stress caused by high temperature gradient changes during the forming process can easily lead to the deformation of parts and insufficient mechanical properties. This article focuses on laser solid forming GH4169 superalloy for laser shock peening. The influence of process parameters on surface morphology and toughness were analyzed. The mechanism of laser shock peening was analyzed. The results show: As the number of impacts increases, the depth gradually increases, and the increasing trend slows down. When the energy is small, the surface change cannot be observed. After 5J, as the energy increases, the depth of the pit increases. As the impact energy increases, the toughness of the material first increases and then decreases. The toughness of the material is the highest at 6J, reaching 65J/cm2. The action mechanism of laser shock peening has three main methods, one is fine-grain strengthening, the other is twinning and work hardening, and the third is stress strengthening.
Research on Comprehensive Evaluation Method of Power Grid Efficiency
Authors: Cheng Chao , Wang Haiyan , Wang Ziyi , Ren Zhichao , Lan Mengxin 
Published: April 2021

Abstract
Power Grid Efficiency directly affects the development level of the company and is an important embodiment of the company’s comprehensive strength and market competitiveness. Different from the previous single cause analysis, this paper uses the earned value method to evaluate the project progress objectively and systematically, and establishes the relevant evaluation index system, so as to have certain reference value for the company’s decision-making adjustment.
Design of flexible maintenance robot based on Gas Insulated Substation
Authors: Ma Yuhang 
Published: April 2021

Abstract
Gas Insulated Substation (GIS) is a metal enclosed switchgear with SF6 gas as insulating medium, also known as gas insulated substation. Because of its compact structure, high security, easy installation and other characteristics, GIS is widely used in the assembly of all kinds of equipment except the main body of transformer. Due to the unique fully enclosed structure of GIS and the complexity of its own gas chamber, manual maintenance is often adopted at present, which is not only difficult but also dangerous. Based on the author’s understanding of flexible robot, a method of intelligent maintenance of GIS cavity with flexible robot is proposed. The flexible robot has a long and narrow structure, and can move flexibly in complex environment. It can also carry sensors and operating equipment into the GIS cavity, and use intelligent control, image recognition, machine learning and other technologies to determine the type and location of GIS faults and deal with them. Through this method, the maintenance of GIS is completed.
Research on Modelling and Analysis of Electrical Virtual Simulation SCM Experimental Platform
Authors: Jia Yajuan , Shang Lisha , Nan Jiangping , Zheng Jianbo 
Published: April 2021

Abstract
The thesis establishes a single-chip virtual simulation experiment platform, which mainly completes the related experiments of the single-chip principal course, and can be used for single-chip curriculum teaching, curriculum design, graduation design and related competition training for college students. The simulation platform has the characteristics of friendly interface and high degree of simulation, which truly breaks through the limitations of geography and time. The policy modelling platform realizes a teaching development model that centres on cultivating students’ application ability and takes teacher construction and laboratory construction as two wings. At the same time, a project-based driving form is adopted to encourage students to participate in a variety of after-school practice links to achieve the unity of classroom theory and experimental teaching.
3D imaging of cellular features in kidney glomeruli using expansion microscopy and fluorescent covalent stains
Authors: Wang Qi , Cao Jingyuan , Xu Huizhong 
Published: April 2021

Abstract
Objective: To develop a 3D imaging method for observing the structural features and identifying three types of cells in the glomerulus based on multiple optical sections of the specimen. Methodology: Following expansion microscopy procedures, the 50 μm thick sections of rat kidney tissues were expanded and cleared. The nuclear and cytoplasmic components of the glomerulus were then stained with dyes with optimized chemical and fluorescent properties and finally visualized by confocal microscopy. To further make the dataset friendly to pathologists, the images were pseudo-colored to resemble H&E. Results: Using the method presented here we were able to collect multiple sections of data. The different types of cells within the glomerulus can be well identified based on their anatomical features and gradual appearance changes along the thickness direction. Conclusion: Compared to two-dimensional data, our 3D multilayered data allows different glomerular cells to be more clearly identified, which lays the experimental foundation for more in-depth study of pathologic changes in the glomerulus.
Numerical Simulation of Thermal Shock Waves Induced by Pulsed X-ray in C/PF Materials
Authors: Wang Dong , Zhang Kun , Tang Wenhui 
Published: April 2021

Abstract
Based on the orthotropic elastoplastic constitutive model of carbon-phenolic (C/PF) material under three-dimensional strain, a self-developed explicit finite element program TSHOCK3D is developed to simulate the multi-physical coupling process of thermo-mechanical response of C/PF target irradiated by pulsed X-rays. Two typical irradiation conditions are simulated, namely blackbody temperatures 1keV soft X-ray and 3keV hard X-ray with the same energy flux of 300J/cm2 and pulse width of 100ns. The C/PF target presents two different thermodynamic patterns. Compared with 3keV hard X-ray, 1keV soft X-ray has a shallower energy deposition depth and a higher peak pressure of thermal shock waves. Furthermore, the irradiated surface under 1keV X-ray exhibits the phenomenon of vaporization while 3keV does not. Following the compression wave is a tensile rarefaction wave, the peak pressure of which is higher in the case of the 1keV. In addition to the phase transition and shock wave propagation in the direction of irradiation, the tensile fracture phenomenon appears in the side area of the target plate, and the effect is more significant under the irradiation of 3keV.
An optical fiber temperature/pressure sensor with dual-layer Fabry-Perot cavity structure for sensitivity enhancement
Authors: Wang Jun , Ma Yixiao , Song Ming , Wang Guanjun , Huang Mengxing 
Published: April 2021

Abstract
The multiple transfer method was used to fabricate two kinds of dual-layer composite structures for analysing the response of the dual-layer Fabry-Perot cavity structure. It’s proved that the sensitivity can be enhanced more than 20 times by optimizing the film layer parameters and combination methods of the dual layers.
Research on Banking Process Optimization Based on RPA in Financial Sharing Mode
Authors: Zhou Siyuan 
Published: April 2021

Abstract
In recent years, the ‘Internet+’ business model and the rapid development of big data have brought serious challenges to commercial banks. The emergence of online financial products has made the market competition increasingly fierce. China Merchants Bank, as one of the few joint-stock commercial banks in my country, the original financial business management model can no longer adapt to the development of the market, and the business process urgently needs to be transformed and upgraded. Based on the financial sharing center and robot process automation theory, the paper optimizes the accounting business process of China Merchants Bank, changes the old way of accounting, makes it more streamlined and unified, and realizes the timely, convenient and accurate accounting. The finance department can also make better use of accounting information resources to solve a series of financial problems in the process of business development, and achieve comprehensive control of business development through the shared central platform to improve the overall efficiency of banking business financial work.
Research on the Application of Intelligent Technology in Low Voltage Electric Automation Control System
Authors: Nie Gaosheng , Xu Yibo 
Published: April 2021

Abstract
Based on the background of intelligent technology, the paper describes in detail the architecture and main functions of the electrical automation control system, including data collection, information transmission, electrical control, etc., based on the principles of stability and scalability in the design of low-voltage electrical automation control systems. Design and implementation of the thesis is to explore the performance of the designed system and select the application examples of the electrical automation control system for analysis. The research results show that the electrical automation control system we designed meets the requirements of artificial intelligence regulation and can effectively improve the safety of the system.
Comparative opto-electronic properties of perylene diimides derivatives with cyclization and high polarizability cores
Authors: Zhu Wenhuan , Liu Xiaodong , Ni Hongyu 
Published: April 2021

Abstract
Recently, perylene diimides (PDIs) show great application potentials in the field of organic opto-electronics, which can be widely used in OLEDs, OPVs, OFETs, etc. In order to obtain more efficient PDIs derivatives, there are two typical methods including cyclization and high polarizability cores. However, numerous valuable molecules cannot be experimental synthesized easily, which are available for theoretical prediction via simulation and calculation. Therefore, we design four model molecules of PDIs derivatives, whose opto-electronic properties are calculated by the DFT method afterwards. By comparing simulation results, we can further extend the comprehension of structure-property relationships of PDIs, which is beneficial to the high-efficiency PDIs derivatives design.
A design of L-band second harmonic power amplifier
Authors: Chao Guo , Fei Yang 
Published: April 2021

Abstract
In the recent years of rapid development of communication technology, the transmission power and efficiency of RF signals are required for much higher level. As a key part of the transmitter, the performance of the power amplifier is considered a crucial part of the overall performance of the system. Compared with the traditional power amplifier, better performance can be achieved by the second harmonic power amplifier in the large signal state, and higher efficiency can also be obtained. A design of an L-band second harmonic power amplifier is proposed in the article. CREE’s gallium nitride transistor is selected for simulation through ADS software, and a drain efficiency of more than 70% can be achieved in the final test.
Inspection technology of remote transmission towers based on a vertical take-off and landing fixed-wing UAV
Authors: Wang Mingxin 
Published: April 2021

Abstract
Transmission towers in remote areas are located in a complex terrain, usually far away from roads, making it difficult for inspectors to approach to deploy auxiliary inspection equipment. Therefore, inspection tasks for such transmission towers have become a time-consuming and laborious hard bone. In response to this problem, this paper proposes a new, safe and efficient form of inspection operations based on a vertical take-off and landing unmanned aerial vehicle (VTOL) which is equipped with a strap-down lateral imaging module to assist in the inspection of electrical towers. Based on the known longitude and latitude information of transmission towers, the inspection route is pre-planned offline. When the VTOL reaches a certain transmission tower, it can be controlled to hover around the center point of the transmission tower at a fixed height. The strap-down lateral imaging module could obtain image information of the transmission tower to monitor the status of the transmission tower. In addition, line-of-sight angles of the center point of the transmission tower in the image can be extracted to help to adjust the height and radius of the VTOL hovering around the transmission tower, so as to achieve the most effective inspection of the transmission tower with a low-cost strap-down industrial camera. The algorithms of the scheme in this paper have been implemented in reliable hardware modules. The scheme has the capability of an actual flight inspection.
Research on Intelligent Monitoring System for Automatic Sprinkling of Intelligent Power Control Park
Authors: Meng Bin , Ji Xinyang , Hu Gaoshan 
Published: April 2021

Abstract
Based on the analysis of the traditional automatic sprinkler maintenance methods in parks, the paper proposes the use of photovoltaic power supply and remote controllable automatic sprinkler methods. On the basis of using solar power as the power source, batteries are used to store electrical energy. The paper also adopted distributed unit design in the design, which solved the layout problems of various parks with complex terrain. In the design, environmental and engineering factors are fully considered to make the design simple, reliable, and easy to construct. At the same time, the unit monomer was tested and verified, and the results showed that the process is simple, the data is reliable, and the production efficiency is high.
Leg-wheel composite wheelchair based on parallelogram mechanism
Authors: Deng Baoping , Dong Jiangyue , Chen Yuhe 
Published: April 2021

Abstract
with the aging society in China, the demand for wheelchairs is increasing for the elderly with mobility disabilities. At the same time, the number of people with physical disabilities caused by accidents and natural disasters is also rising. This paper designs a kind of electric wheelchair which can adapt to many kinds of terrain, which integrates climbing stairs, crossing obstacle function and safety and comfort to meet the living needs of specific people.
Analysis of “working together” based on momentum conservation
Authors: Chen Longyin , He Zengmin , Jiang Jiacheng 
Published: April 2021

Abstract
This paper systematically analyzes and evaluates the team players, concentric drum face, flexible rope and volleyball in the team game system of “working together”, and studies a series of problems including the optimal strategy and error adjustment of the team game. By looking for the mechanical connection of the system composed of players, concentric drum surface, flexible rope and volleyball, using the conservation of momentum theorem and differential equation, this paper gives an accurate mathematical description of the movement of each part of the system, and concludes that the necessary condition of the optimal strategy under ideal conditions is to make the forced vibration of the system reach resonance, that is, to keep the period consistent. Considering that the size and time of the players’ exertion will have an internal impact on the times of hitting the ball, this paper uses the analytic hierarchy process to objectively evaluate the relative weight of the two effects, and uses the weighted method to establish a comprehensive evaluation function to solve the optimal solution of the binary objective decision-making problem. In order to ensure the accuracy of the model, the influence of air resistance on the system is evaluated by hydrodynamics.
Discussion on grouting construction method and technology in civil engineering
Authors: Wang Peng , Li Yan 
Published: April 2021

Abstract
With the rapid economic development in recent years, the development of civil engineering has become more and more rapid. Therefore, in order to ensure the quality of civil engineering construction, it is necessary to reasonably modify the grouting construction method of civil engineering construction. By improving the grouting construction method, the quality of civil engineering can be guaranteed as much as possible. Therefore, this article mainly analyses and discusses the application of grouting technology in civil engineering construction. Through the analysis of the importance of grouting technology in civil engineering construction, we can further enhance the construction unit’s attention to grouting technology and promote the effective development of grouting construction technology in civil engineering.
Research on Application of Machine Learning Technology in New Material System
Authors: Wang Jiaoyu , Zhang Daxiu 
Published: April 2021

Abstract
Materials are not only the foundation of the national economy, but also the carrier of high-tech. Machine learning combined with computer science, database theory, statistics, computational mathematics and engineering cannot only show faster calculation speed and reliable predictive ability, significantly improve the efficiency of material calculations, and it can also effectively deal with some systems and problems that are difficult to use traditional simulation computing methods. This article will briefly outline the basic principles of machine learning, introduce several typical algorithms in machine learning models and how machine learning is the application progress in the research of new materials, and the prospects for the future development of machine learning in the field of materials science.