bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influencing Factor and Error Analysis of Operating Capacitor Voltage Transformer Harmonic Measurement
Authors: Zhang Yan , Wang Huajia , Yu Danwen , Yang Liu , Cao Wenjun , Yang Yongxin 
Published: December 2021

Abstract
With the increasing demands of power quality monitoring and management, the problem of harmonic measurement error caused by the widespread operation of capacitor voltage transformers (CVT) in high-voltage power grids has been unavoidable. This paper analyses the influence of environmental factors on harmonic measurement error of CVT, and proposes a new method for analysing the harmonic measurement errors of operating CVT, which explains the unstable phenomenon of CVT measurement errors based on field comparison test, and provides a progressing screening method of effective analysis data. the CVT harmonic error characteristic analysis method proposed in this paper considers the impact of field installation conditions, electromagnetic environment, and other actual operating environment, which can reflect the actual harmonic error characteristics of CVT in field operation. A CVT harmonic measurement system is established based on the proposed method. The validation and effectiveness of the proposed method is illustrated on a field measurements of 1000kV CVT in Shandong Province.
Analysis of power frequency electric field distortion caused by substation inspection robot
Authors: Gong Quanquan , Li Yunqi , Yang Zhongju , Dou Dandan , Yang Fan , Yang Hao 
Published: December 2021

Abstract
In the era of intellectualization, many substation inspection robots are being put into operation, but they will cause electric field distortion in the surrounding space during operation. This paper establishes a three-dimensional simplified simulation calculation model for 500kV substations and inspection robots. Based on the boundary element method, we simulate the power frequency electric field of the substation switchyard and analysis the distortion electric field when the inspection robot is in the station. The results show that when the electric field intensity is strong, the distortion coefficient caused by the robot will be larger, and the maximum can reach 2.25 times, and when the electric field intensity is small, the distortion coefficient will be smaller, and the distortion coefficient is 1.42 times on average.
X-ray Image Recognition Method for Crimping Defects of Strain Clamp Based on OpenCV
Authors: Li Pengwu , Liu Ronghai 
Published: December 2021

Abstract
The crimp quality of the tension clamp of the line affects the safety of the power grid. At present, the measurement of the quality of the tension clamp has certain limitations. An X-ray image detection method for strain clamp based on image processing technology is proposed. Firstly, the X-ray image of the strain clamp is taken and the image is preprocessed. Secondly, by selecting the defect part image of the typical defect sample, using some statements of OpenCV Python Library in Python to quickly identify and detect other X-ray pictures, and mark the defect part of other pictures. Finally, whether it is a defect is determined according to the cumulative value image of the gray value distribution of the marked defect area. Through the research in this paper, the rapid identification of the X-ray image of the crimping position of the tension clamp can be realized, which has important reference value for the engineering application of the crimping quality inspection of the tension clamp.
Research on main insulation defect of cable fusion joint based on IDIP-DR detection technology
Authors: Liu Sanwe , Huang Fuyong , Qiu Chao , Duan Xiaoli , Fang Chaowen , Duan Jianjia , Zeng Zeyu 
Published: December 2021

Abstract
The cable connector is the weak link of the electrical part of the cable. Most of the cable breakdown accidents occur at the connector, which will have a huge impact on the safe power supply of the city. In recent years, with the development and maturity of 10 kv cable fusion joint technology, high-voltage cable fusion joint technology is gradually applied in the field, but the key process problems in the production process lack of effective control means. In order to solve such problems, this paper use IDIP - DR digital radiographic testing technology. The key technology of high voltage cable melting joint detection, effectively detect the main insulation problems bubble construction technology. Through the anatomical, proved the accuracy of the test results, for the subsequent company to carry out the weld joint process control provides an effective means of. The causes of defects were analyzed and the corresponding process control suggestions were put forward.
Research on the Architecture and Key Technology of Data Two-way Interactive Distribution Automation System
Authors: Song Yinghua , Wang Gang 
Published: December 2021

Abstract
On the basis of analyzing and summarizing the current situation of the construction and use of distribution automation systems at home and abroad, according to the requirements of the use of distribution automation systems, a data two-way interactive distribution automation system architecture design is proposed. In response to the requirements for multi-source data collection in the distribution network, a distribution automation system architecture with partitioned collection and bidirectional data flow is proposed to improve the perception of distribution network equipment. Propose the self-recognition technology of power distribution system and terminal based on IEC61968 and IEC61850 model mapping to realize the fast access of power distribution terminal. Propose a grid integration modeling and global decision analysis method based on model splicing technology to realize multi-dimensional data fusion and analysis applications.
The Study on Void Fraction Prediction of Gas-liquid Two Phase Flow Based on Convolutional Neural Network
Authors: Kan Zhe , Liu Xinyang 
Published: December 2021

Abstract
For the gas-liquid two phase flow in the horizontal pipeline, at the center angle the void fraction of the different liquid phases is calculated with the finite element simulation software, and then a soft measurement model of the void fraction is established. By comparing with traditional recursive augmented least squares (RELS), particle swarm optimization (PSO), and simulated annealing-based PSO, the void fraction soft measurement model is identified and calculated separately. The segmentation optimization results of PSO based on simulated annealing have higher accuracy and stability than RELS and PSO, but as the number of center angles increases, the relative accuracy and stability of the system will deteriorate. And the characteristic is not conducive to the calculation and analysis of data results. By combining the actual model, the convolutional neural network weight update algorithm is added to the LSTM, and the RNN-LSTM convolutional neural network is used to predict the void fraction of the second half the region. It improves the effect of RNN gradient problem on learning ability and improves learning ability. Through comparison, it is found that the convolutional neural network based on RNN-LSTM has a better prediction effect, improves the accuracy and stability of the system, and provides a new method for the measured void fraction of twophase flow.
Analysis on the research method of road sense feedback in steer-by-wire system
Authors: Wei Chuanbin , Zhang Lizhu , Fu You , Xia Faying 
Published: December 2021

Abstract
Nowadays, the automobile industry is gradually developing towards the trend of electrification and intelligence. Compared with the traditional steering system, the steer-by-wire system cancels the mechanical transmission structure, reduces the space utilization, reduces the probability of damage to the driver caused by the steering system in the collision accident, and improves the driving portability and enhances the driver’s handling experience. The road feeling feedback of steer-by-wire system has the greatest impact on the driver’s driving experience. This paper discusses the research methods of road feeling feedback of steer-by-wire system, introduces the basic structure of road feeling feedback of steer-by-wire system, the basic idea of dynamic modeling, the establishment of simulation model of road feeling feedback, and the establishment method of control strategy and simulation platform of road feeling feedback. Finally, it summarizes and prospects in order to provide basic information and perspectives for the development and research of steer-by-wire system.
Study on dimensions of void in GRP rod of composite insulator
Authors: Dong Hongchuan , Jiang Shan , Tang Xuejun , Ke Fangchao , Zhang Sida , Liu Yunfan 
Published: December 2021

Abstract
As an important part of composite insulator, glass fiber reinforced polymer (GRP) rod needs to bear the main mechanical and keep certain insulation performance. The void in the material is key factor to the performance of GRP rod. The void with larger size could affect the electric field distribution significantly and lead to the “Lantern-like” heating. In this paper, the structure of void in GRP rod is studied by 3D X-ray microscope. It is found that the void dimensions in the GRP rod is generally less than 300μm, but the interconnection of linear hole makes the length of the void increase significantly. For the GRP rod with high porosity, the length of connection hole is hard to be detected directly by the existing technology, but it could be calculated based on the diameter of the hole. Based on the calculation method, the dimensions of void in GRP rod could be inspected by the observation of section using optical microscope.
The Research of GIS Discharge Influence Based on Particle Properties in Installation Environment
Authors: Lin Leicheng , Chen Dan 
Published: December 2021

Abstract
In order to explore the influence of atmospheric free particles that exit during GIS installation on the stable operation of GIS, the size, shape and inner properties of the particles contained in the air are analyzed. And based on 500kV GIS equipment, the GIS gas chamber model and the model of free particles were established. By using the finite element simulation software, the surface electric field distribution when the free particles remain on the insulator surface is solved. The results show that the electric field distribution of particles which exist along the surface of insulator is directly related to the relative permittivity of the material of the particles themselves, and the intensity of the electric field along the surface increases with the increase of the relative permittivity. with the fact that the relative permittivity of air particles is almost below 20, as a result, the existence of 10µm grade non-metallic free particles will not cause flashover discharge. But, when a small number of Fe3O4 particles which size over 1mm or when them accumulate regularly, it will lead to flashover discharge. Therefore, the suspended atmospheric particles in the installation environment have little impact on the stable operation of GIS. When considering the installation environmental conditions, the installation can be carried out on a clear, windless day which can save costs.
Research on fine tuning parameter insulator identification based on YOLOV4 algorithm
Authors: Wang Meng , Sun Yuan , Xia Feize 
Published: December 2021

Abstract
Aiming at the problem that the training network time of YOLOV4 algorithm is too long due to the large data set of aerial insulator images, a method based on YOLOV4 algorithm is proposed to shorten the training time by fine-tuning parameters without affecting the positioning detection accuracy. Based on the development of UBANTU virtual machine, through CUDA and CUDNN environment configuration, and through the detection and verification of insulator aerial photo data set, the feasibility of accurate positioning of insulators under the condition of fine tuning parameters of YOLOV4 algorithm is successfully proved.
An Intelligent Approach to Elevation Profiling for LADAKH using QGIS techniques
Authors: Singh Priyanka , Sammanit Debaroti , Singh S K 
Published: December 2021

Abstract
With the trending technological advancement, geographic information systems are finding their supremacy in many fields of research and technology, ranging from geographical inputs to population trends to medical advancements in full spheres of work in today’s progressing world. The emergence of Quantum GIS has now facilitated areas like change monitoring, forecasting. The paper aims to prove the elevation system forecast for the Ladakh region, which has lesser mobility in the present times; the paper’s findings focus on opening a new gateway for the engineered constructions in the region for improved connectivity that is confined to the summer months. Thus, ESRI’s GIS software helps analyse the terrain difficulties in the stipulated area via topics like raster feed, georeferencing, and mesh layer creation.
Utilization of Rice Straw Ash as Fine Aggregate in Mortar Mixes
Authors: Sehgal Mohit , Arora Sahil 
Published: December 2021

Abstract
This research paper highlights the Rice Straw Ash (RSA) which is an agriculture wastage from rice cultivation and milling processes can be utilized in construction work. Compressive strength is increased due to replacement of rice straw ash up to 12.5% and also 10% cement replacing, it also increases the initial and final settlement time of mortar. By replacing of 10% RSA, the compressive strength is step by step increased and also by replacing the cement ratio the property of mortar (Water permeability) is depended and so as age of mortar. We can simply describe it that, by increasing age and compressive strength of mortar the permeability is decreased. Permeability of RSA mortar depends on the cement substitution percentage of RSA and age of mortar. When the permeability decreases, the compressive strength of mortar also increases.
Assessment of agrochemical residues in banana fruit by using gas chromatography and QuEChers technique
Authors: Chaudhary Bhanu , Dhiman Sourabh , Verma Vikas 
Published: December 2021

AbstractPresent study is performed to analyze the residues of agrochemicals in banana fruit sold in the Chandigarh region. Aim is to check whether the agrochemical waste of residues is within the maximum residue levels (MRLs) or not. Market survey was conducted in the fruit ripening godowns and it was observed that different toxic agrochemicals are being used in the banana cultivation and only 15% of working people were aware of chemicals and their harmful effects. The occurrence of some toxic agrochemical residues like endosulfan, carbendazim, chloropyripos, chlorthiophos was analyzed in the banana fruit samples taken from different markets areas of chandigarh. Multi-residue analysis was performed in peel and pulp differently for 10 different samples by gas chromatography mass spectrometer (GC MS). Chlorthiophos (organophosphorus pesticide) was found in three peel samples having range 0.004 – 0.23 mg kg−1and one pulp sample have concentration 0.005 mg kg−1. Carbendazim concentration was in two peel samples have concentrations 0.002 and 0.07 mg kg−1. Endosulfan, chloropyrifus were absent in all samples whereas presence of carbendazim and chlorothiophos were found within MRL guidelines of Food and Agriculture Organization (FAO).
Experimental study of concrete prepared by kota stone dust, bagasse ash, and recycled concrete
Authors: Vani Harshdeep , Arora Sahil 
Published: December 2021

Abstract
This paper mainly deals with the cost analysis of the concrete which is prepared using environmental waste which forms pollution and having its disposable issue also. This concrete may be termed as green concrete because the use of these materials decreases the harmful gas formation of the concrete. This paper deals with Kota Stone Dust, Bagasse Ash, and Recycled coarse aggregates. The concrete is prepared by the various ratios of Kota Stone in order of 5%, 10%, 15%, 20%, 25% and 30%. The use of bagasse ash was done in ratio 10%, 20%, 30%, 40% and use of Recycled Aggregate was done in ratio of 10%, 20%, 30% and 40%. After the successful experimental study of concrete using this material the cost reduction for M25 grade of concrete was found to be 645 INR.
Seismic analysis of hybrid structures with and without shear walls
Authors: Naseri Mir Rahman , Singh Balwinder 
Published: December 2021

Abstract
A hybrid structure is one that combines more than two different types of materials to compensate for weak places while also maximizing strength. Hybrid steel and concrete frameworks, as well as other modern materials, are unified at the member or framework unit. Hybrid structures are frequent in high-rise and super-high-rise building projects, and they provide the benefit of cost savings. Shear walls are built to withstand lateral loadings like earthquakes and winds loads. The response spectrum analysis approach is frequently used to measure design stresses for earthquake-prone structures. The modelling and analysis of the regular plan structures are done by CSI ETABS 2019 in IV seismic zones, on type II (medium soil) of India According to IS 1893 (Part-1) 2016. The aims of this study Response spectrum analysis of 41 storey RCC and hybrid structures with shear walls and without shear walls are compared. RCC and hybrid structures with shear walls showed lower storey displacement, storey drift, and story shear values than RCC and hybrid structures without shear walls, according to the results of this study. The research results will be helpful as a reference and a tool for seismic analysis of hybrid structures.
Experimental Studies of Marble Concrete Prepared with Micro Silica and Rice Straw Ash
Authors: Raina Abhishek , Kaur Gurinder , Tangri Amanpreet 
Published: December 2021

AbstractThis experimental study is about the investigation of the concrete prepared with marble waste, micro silica and Rice Straw. Investigation is done by determining ad comparing the mechanical Strength properties and cost of Proposed concrete with the Normal conventional concrete. The different test on the marble concrete shows that the incrment in marble powder content increases the mechanical strength of concrete. Marble is costlier than the Coarse aggregate, so it also increases the cost of the concrete. Micro silica fills the voids in the concrete and helps in the increment of the strength. After the replacement of recycled aggregates and addition of the silica fume, Rice Straw ash can replace cement by 15% without any decrement in the strength of the concrete. Total water absorption of the concrete Decreases due to use of marble because it does not absorb any water.
Synthesis Techniques for rare Earth doped up-conversion Nano-materials for Solar cells – A brief Review
Authors: Kumari Rinku , Vinayak Karan Singh , Kumar Deepak 
Published: December 2021

Abstract
Extended efficiency of solar cells to ensemble more solar energy as well as its optimum conversion and utilization is believed to be a major challenge in current times. The spectral mismatch between the distribution of energy in the solar spectrum incidence and the semiconducting material band gap is a major restriction in the performance of solar cells. The conversion of wavelength of the sun is a necessary requisite to reduce spectral disruption. Of late, the solar cell converters are presumed as up-converted components and products derived from down conversion. Materials like NaCsWO3, NaYF4, and NaYF4: Yb, Er are synthesized and used to overcome the problem like deficiency of up-conversion luminescence (UCL) materials and device structures. The intensity of UCL can be enhanced by a significant time when the amount of NaCsWO3 is 2.8 m mol per cent. UCL material is considered as one of the best approaches to obtain high-efficiency perovskite solar cells (PSCs). In order to overcome these difficulties, not only were these effective up-conversion nano-particles (UPCNPs) doped into the hole layer but the perovskite foil was also modified in PSCs. The highest power conversion (PCE) performance reached 18.89%. Enhanced UCLs allow for UCNPs to extend the recognition spectrum of near PSCs. The objective of this comprehensive and focused review is to highlight the different synthesis techniques used in up-conversion nano-materials, for solar cell applications along with a theoretical perspective in this regard.
Analysis and Design of Cable Stayed and Suspension Bridge Subjected to Wind Loading
Authors: Reshi Farhan Farid , Singh Priyanka , Shivangil  , Tomar Ravinder Kumar , Singh S K 
Published: December 2021

Abstract
Bridge can be defined as a structure which is built to pass a physical obstacle such as river road or valley and this structure does not close the way underneath it. The main objective of the bridgeis to provide a passage which can surpass any obstacle. A bridge is designed according to various specific purposes depending upon the need function and various physical factors. Cable-stayed bridge is having one or more columns called towers or pylons, with the cables directly supporting the bridge deck. Cable-stayed bridge is the bridge form in which the weight of the deck is supported by a number of nearly straight diagonal cables in tension running directly to one or more vertical towers. The towers transfer the cable forces to the foundations through vertical compression. The tensile forces in the cables also put the deck into horizontal compression. A suspension bridge is able to carry vertical loads with the help of curved cables in tension. Transfer of load takes place to both the towers, which is transferred by vertical compression to the ground, and anchorages, which is able to withstand the inward and occasionally vertical pull of the cables. The suspension bridge is often looked as an upside-down arch in tension with only the towers as compression members. In this research work, analysis and design of cable stayed and suspension bridge subjected to wind loading has been carried out.
A Comparative Study on Conventional Clay Bricks and Autoclaved Aerated Concrete Blocks
Authors: kumar Rahul , Thakur Ankur , Tiwary Aditya Kumar 
Published: December 2021

Abstract
In India, traditional clay brick is the most common filler material used in building. The materials used in construction have a significant influence on both the constructed environment and the project’s ultimate cost. Autoclaved Aerated Concrete (AAC) has recently emerged as a viable alternative to clay and fly ash bricks. In this work, a comparison of clay bricks and AAC blocks is explored. Although AAC blocks have been utilised in building since 1924, they now account for just 16-18% of all construction in India. AAC blocks have desirable mechanical qualities in proportion to their low bulk density, improved thermal and acoustic properties, light weight, and ease of installation, making them an obvious alternative to replace traditional clay bricks. The purpose of this study is to demonstrate the potential of AAC blocks as an infill material to replace clay bricks and to encourage its usage in construction to create more energy efficient and sustainable structures. AAC blocks’ potential as an infill material in hilly areas is discussed.