bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comoving Wide Binary Star Systems within the Hyades Star Cluster and Their Positions on Color-Magnitude Diagrams
Authors: Yang Andrew Hudson 
Published: March 2022

Abstract
Single star systems like our solar system are in fact not the most abundant in our universe. This research paper will specifically investigate the wide, or visual, binary star systems within the Hyades open star cluster and their positions on color-magnitude diagrams (CMD). To do this, this work incorporates the Gaia EDR3 dataset and python coding to conduct the mass selection and graphing of the data. The stars within the Hyades are first selected by evaluating their coordinates and then their relative motion. This maximizes our accuracy in selecting gravitationally bound stars within the Hyades. Then, by further reducing the margins, this paper identifies comoving wide binary star systems within our initially selected Hyades candidates. Finally, the CMD of the wide binary star systems within the Hyades star cluster is plotted along with the other none-binary star systems within the star cluster and the stars within the local 100 parsec (pc) of the Earth.
Research on Flush Air Data Sensing System Based on Kriging Model
Authors: Chen Zhikang , Xu Guili 
Published: March 2022

Abstract
Compared with traditional air data senening system, flush air data sensing (FADS) system is more accurate, more reliable, and can be used in invisible environment. Algorithm research on FADS was conducted using Kriging model with good real-time and high accuracy. The aerodynamic model of FADS was established while Kriging algorithm was used to calculate flight data with optimized parameter. Mach number, angle of attack, and the aircraft were calculated with simulation and wind tunnel experimental data based on Kriging algorithm. Compared with the neural network algorithm, the inverse distance weight interpolation algorithm, and the SVR fitting algorithm, the results show that the optimized Kriging algorithm performs better.
Topology and Size Optimization for Flap Track
Authors: Kang Chenchen , Dong Meng 
Published: March 2022

Abstract
Structure optimization is widely used in engineering today, it is very important to carry out the optimization after the preliminary design to reduce the weight of the structure. This paper is based on the basic theory of the finite element method. Firstly, the static analysis of flap track is carried out, the stress distribution and stiffness results are obtained. After that, a topology optimization is carried out based on the Hypermesh software. Lastly, a size optimization is carried out to get an easy processing structure. In conclusion: This paper studies the flap track, the optimization is carried out for flap track, the overall weight of the flap track is reduced by 15% under the satisfaction of safety and stiffness.
Abnormal Breakdown Process and Mechanism of High-performance Epoxy Insulation
Authors: Zhou Fusheng , Huang Ruodong , Gao Chao , Yang Yun , Qiao Yajun , Zhu Chunchang , Luo Tongchun 
Published: March 2022

Abstract
In recent years, various faults caused by insufficient mechanical properties of high-performance epoxy insulating parts occur from time to time. The breakdown position is epoxy metal interface, in which an obvious mechanical failure form is found. It is speculated that the failure mechanism may be the failure process caused by combined electrical mechanical breakdown. An insulation failure of epoxy insulating parts was analysed and he similarities and differences of bending and tensile properties of single column leg of different batches of products was studied, which is used to put forward the bulk insulation failure process of epoxy insulating parts under mechanical electrical coupling. In this paper, the bending test and tensile test of single column leg of high-performance insulation are designed, and the bonding strength of column leg insert is studied and analyzed. It is found that the bonding strength of column leg inserts of high-performance insulating parts in the fault batch is insufficient and has great dispersion. The bonding strength of column leg inserts is mainly affected by the knurling shape, knurling width and the coating shape of semi-conductive adhesive on the surface of the insert.
Electromagnetic threat faced by mobile launch rocket and simulation construction of test electromagnetic environment
Authors: Chen Yiwen , Zhao Liwen , Ouyang Zhihong 
Published: March 2022

Abstract
Under the condition of informatization, the system efficiency will be seriously challenged by the intervention of opponents in the electromagnetic field. With the complexity of the electromagnetic environment in the future, the types of electromagnetic threats faced by mobile launch rockets are increasing. The adaptability to the complex electromagnetic environment has become the key factor whether they can complete the launch mission as planned. Taking the mobile launch rocket as the research object, this paper analyzes the main electromagnetic threats faced by it, such as electronic reconnaissance, electronic jamming, electronic destruction and precision strike, and puts forward the basic scheme of electromagnetic threat environment simulation required for relevant electromagnetic environment adaptability test. The research has direct guiding value for testing the electromagnetic threat response ability of mobile launch rocket and promoting its application and efficiency in complex electromagnetic environment.
Analysis and Suppression of Harmonic Characteristic for Multi-pulse Rectifier Based on Phase-shifting Transformer
Authors: Hu HeJun , Wang JunJia , Huang YiYun , Li XiaoFeng , Chen Hui 
Published: March 2022

Abstract
With the wide application of rectifiers, the harmonic content of power grid is increasing. In fact, the multi-pulse rectifier produces lower harmonic content than the lower pulse rectifier. In order to reduce harmonic content from harmonic source in power grid, the multi-pulse rectifier is designed based on the phase-shifting transformer in this paper. First of all, the design method of multi-pulse rectifier is introduced by theoretical analysis. Then, the harmonic mechanism is deduced by the mathematical formula, which explains the harmonic generation process. After that, the correctness and reliability of theory analysis are proved by simulation. Finally, the harmonics of the multi-pulse rectifier are suppressed by filtering branches.
Study on the Model and Simulation of Single-Unit Isolated Grid Operation Using APROS
Authors: Zeng Chunyang , Xing Tianyang , Zhu Xiaoliang 
Published: March 2022

Abstract
In order to solve the problem of imperfect control strategy and unstable control for steam turbine rotating speed of isolated grid operation in distributed generation system, based on APROS simulation support platform, the isolated grid system is divided into steam turbine system, energy-consuming system and throttle system to construct the model of single-unit isolated grid operation. The simulation results verify the accuracy of the steady-state model. The turbine energy-consuming system model can characterize the operating characteristics of the isolated grid, and the operating characteristics of the energy-consuming system will significantly affect the speed regulation of the turbine system. The establishment of the overall model lays foundation for the design and optimization of the control scheme of the single-unit isolated grid system.
Multi region integrated energy system planning method considering the dynamic characteristics of heat supply network
Authors: Wang Qiu , Zhang Qun , Li Yan 
Published: March 2022

Abstract
In view of the poor effect of current heat supply network energy system planning, a multi regional comprehensive energy system planning method based on the dynamic characteristics of heat supply network is proposed, the equipment structure of energy hub is optimized, and the evaluation index and algorithm of multi regional comprehensive energy system planning are constructed to ensure the effect of multi regional comprehensive energy system planning with the dynamic characteristics of heat supply network. Finally, it is confirmed by experiments. In practical applications, the method in this paper is highly adaptable and can meet the research requirements.
Optimal scheduling of integrated energy system considering integrated demand response
Authors: Jia Shaokun , Xu Jian , Bai Jie , Liu Songyang , Xia Pengquan 
Published: March 2022

Abstract
To improve the reliability and economy of integrated energy system, considering the demand response strategy of the integrated energy system, the integrated energy system of IDR is established. Taking the minimum cost as the objective function, a comprehensive energy system scheduling model considering the balance of supply and demand and the constraints of energy supply and storage equipment is proposed. The improved second-order oscillatory particle swarm optimization algorithm is used to solve the model. The effectiveness of the proposed model and algorithm is verified by example simulation.
Capacity Analysis of Cable Insulation Crosslinking Production Process Based on IoT Big Data
Authors: Lv ZhenHui , Bian LongJiang , Feng MingJun , Zhang JinLi 
Published: March 2022

Abstract
In the cable insulation crosslinking production process, the process quality is determined by multiple processes and multiple related process variables, and there are complex autocorrelation and cross-correlation among these process variables. In this paper, different process variables are studied. By implementing statistical process control on a univariate, single value control chart (I) and moving range control chart (

M
¯

R

) are drawn, and process capability CP
is analyzed to find variables with weak process capability for improvement. At the same time, based on the background of the continuous development of the Internet of Things and big data technology, this paper evaluates the complex autocorrelation and cross-correlation between the overall process variables, adopts the multivariate statistical process control technology, and combines the multivariate HOTELLING T2 control chart and MEWMA control chart to reflect the statistical characteristics of multiple variables, thus avoiding misjudgment or omission of process quality monitoring model. By studying the setting of cable production process parameters and quality standards, combined with the application of complete multivariate statistical process control (MSPC) around the evaluation results, process, and technical requirements, this research can provide effective guidance for the cable insulation crosslinking production process
Calculation of Probabilistic Energy Flow of Colding-heating-electricity Interconnection System Considering Wind Power
Authors: Zhang Tieyan , Yang Junbao , Zhao Tao , Li Min , Zhang Dawei , Wang Yuri 
Published: March 2022

Abstract
In order to effectively evaluate the impact of wind power connection on the operation of the colding-heating-electricity interconnection system, a probabilistic energy flow calculation method based on the semi-invariant method and improved K-means is proposed. First, a colding-heating-electricity joint system model was established. Secondly, based on the semi-invariant method, an improved K-means clustering technique was proposed to solve the problems caused by different input random sample types. Finally, the efficiency of the proposed method is verified by simulation.
Residential mobility and its effect on voter turnout in Surulere, Lagos, Nigeria
Authors: Ajakaiye O.O. , Anumudu F.E. , Akinola A.O. , Okagbue H.I. , Peter N.J. 
Published: March 2022

Abstract
The study is aimed at assessing the effect of residential mobility on voter turnout or electoral participation, by exploring: the average distance between a polling unit and voter residence and the relationship between residential mobility and voter turnout in Alaka LSDPC Estate, Surulere Local Government Area. The study targeted a population of residents who moved into the neighborhood between 2015 to 2019 general elections, employed a hundred percent sample size, considering the marginal figure of 36 families and the sampling technique adopted was the snowballing and purposive. For data analysis, descriptive statistics were used for the average distance between a polling unit and voter residence, and ANOVA and linear regression were used to analyze the relationship between residential mobility and voter turnout. The current study found out that there is a significant relationship between residential mobility and voter turnout, as the average distance between a polling unit and a voter’s residence is greater than 20 km which implies that it is very far and inaccessible. Residential mobility indeed affects voter participation, with a P = 0.001 value and R2 value of 0.513 (51.3%). It is recommended that residential mobility be considered in electoral policies, laws, initiatives, and programs by the electoral body to ensure total inclusion.
An examination of the level of engagement of modern portfolio techniques for portfolio management by real estate firms in Lagos State, Nigeria
Authors: Oloke O.C. , Odetunmbi O.A. , Akinwumi S.A. 
Published: March 2022

Abstract
Portfolio management in real estate practices was examined in this study with a view to ascertaining the techniques engaged in carrying out the risk and return analysis as well as the evaluating portfolio performance in the firm. Questionnaires were administered to respondents from 208 estate surveying and valuation firms in Ikeja, Lagos Island, Ikoyi and Victoria Island, Lagos State.Response rate achieved was 86.5%. Basic descriptive tools of percentage, weighted mean, relative importance index were used to analyse the data.The study found that the number of firms that offer portfolio management services is rather low compared to other areas of services.Results further showed that the firms ranked discounted cashflow and contemporary growth models higher than the modern portfolio techniques for asset return assessment whereas simulation and modern portfolio tools ranked higher among the techniques for risk assessment. Finally, the results showed that most firms make use of contemporary growth models, benchmark, style or market comparison to evaluate the performance of the portfolio. The study therefore suggests that estate firms embark on staff capacity development for effective application of modern portfolio theory techniques and making the service widespread among practicing firms.
Design and construction of a home air quality monitoring system
Authors: Ochie S. , Usikalu M.R. , Akinpelu A. , Ayara W.A. , Ayanbisi O.W. 
Published: March 2022

Abstract
Air pollution is one of the most dangerous problems we face in the world today. It is the cause of many illnesses like asthma, cancer, bronchitis, congenital disabilities and other diseases that affect the immune system of both humans and non-human animals. Among the factors that characterize the quality of air are temperature and humidity and the level of Carbon dioxide in the environment. This reseaerch involves the design and construction of a device that measures the temperature, humidity and
CO2

levels in an environment, using a DHT11 and MQ135 sensor. The values were compared with the expected values from a trusted website to determine the accuracy of the device. The device was also used to take the temperature, humidity and
CO2

levels of the living room, bedroom, kitchen and balcony in a house to determine the quality of air in the house. The results obtained in the living room and balcony revealed impressive air quality with the temperature and humidity in the safe zone while the level of
CO2

was normal. The air quality in the bedroom was acceptable, although it could do with better ventilation if it is to house more people. The kitchen, however, showed high temperatures at certain hours and high humidity as well as
CO2

levels. It was concluded that improvements are necessary for the ventilation of the kitchen to improve the quality of air.
Phytochemical constituents and proximate analysis of dry pineapple peels
Authors: Owoeye T.F. , Akinlabu D.K. , Ajayi O.O. , Afolalu S.A. , Popoola J.O. , Ajani O.O. 
Published: March 2022

Abstract
The pineapple and its skin contain a lot of vitamin C, which helps to prevent and fight illnesses. Dry pineapple peel phytochemicals and proximate analysis were investigated in this study. Oil derived from ripe pineapple peels was tested for phytochemical constituents and proximate analysis of dry peel pineapple using a conventional method.Moisture content was 5.10±0.07%, the ash content was 3.78±0.05%, the fat content was 5.57±0.08%, the protein content was 5.78±0.10%, the crude fiber content was 4.10±0.06%, and the carbohydrate content was 75.68±0.86%. Alkaloid phenol, tannin, flavonoid, and saponin were identified as phytochemical components from the result of phytochemical screening.The presence of secondary metabolites in pineapple peel oil is a positive indicator that if thoroughly investigated, bioactive chemicals with significant biological activity may be extracted. As a result, it's plausible to believe that nutraceutical advantages can be derived from this waste (pineapple peel), potentially boosting humanity's prosperity, health and well-being.
Modelling neuron fiber interaction and coupling in non-myelinated bundled fiber
Authors: Bujar Baruah Satyabrat Malla , Roy Soumik 
Published: March 2022

Abstract
Understanding the local dynamics of a neural network relies heavily on local field potential and cell-field interaction. But it is still unclear how local the local potential is and what kinds of consequences the trans-membrane current flow and produced electric field have on the local neural fiber. Mimicking signal transmission in neighboring nerve fiber, a simulation model is built to analyze local behavior due to trans-membrane current, cell-field interactions, and their repercussions on the bundled fiber system. Simulation studies reveal that depending on the coupling parameters, activity in one fiber can depolarize or hyper-polarize adjacent fibers. The suggested cell-field interaction model was tested using an orientation-selective coupled retinal ganglion cell network, which was compared to its uncoupled counterpart. The proposed work has been used to model and simulate local signal dynamics in a bundled fiber system of an orientation-selective RGC network due to cell-field interaction, as well as to gain insight into the possible significance of dendritic fiber coupling in orientation selectivity bandwidth adjustment.
Construction of tumor microenvironment and redox responsive nanocarrier-mediated cisplatin co-delivery system for effective chemotherapy to pancreatic cancer
Authors: Jia Zhou-Yan , Zhou Hao , Hou Li-Shuang , Kou Fang , Zhang Tang-Rui , Wang Bao-Long , Wang Wei , Zhou Si-Yuan , Zhang Bang-Le 
Published: March 2022

Abstract
Pancreatic cancer is a malignant tumor with a high mortality rate. The rich stroma in tumor tissue is a major barrier to drug penetration and tumor killing. Cisplatin and cisplatin-based nano-delivery systems are widely used as chemotherapeutic agents. However, the side effects and the inability of permeating tumor tissue in depth have limited their application in the clinic. Hyaluronan is an important component of the extracellular matrix in the tumor tissue and has the potential to be targeted for tumor stroma degradation. Therefore, a nanocarrier-mediated cisplatin co-delivery system BPEI-SS-Pt/HAase@CaP consisting of hyaluronidase (HAase) and polymer-cisplatin conjugate BPEI-SS-Pt through disulfide bonding to branched polyethyleneimine (BPEI) was constructed. In the construction of the co-delivery system of BPEI-SS-Pt and HAase, amorphous calcium phosphate is introduced to obtain the tumor microenvironment responsive release of HAase. The particle size of optimized BPEI-SS-Pt/HAase@CaP nano-complexes is 143 ± 14 nm. In the tumor microenvironment, BPEI-SS-Pt/HAase@CaP nano-complexes were able to release HAase to degrade the hyaluronan in the tumor stroma. The results of histochemical and fluorescent labeling showed that hyaluronan was degraded in vivo by BPEI-SS-Pt/HAase@CaP and the nanocarrier-mediated BPEI-SS-Pt can be easily across the loosened stroma and penetrated the tumor tissue more deeply compared with BPEI-SS-Pt without loading HAase. When they were uptaken into tumor cells and responded to high glutathione in the intracellular environment to release cisplatin, more effective chemotherapy to pancreatic cancer was obtained. Compared with the free cisplatin or BPEI-SS-Pt group, BPEI-SS-Pt/HAase@CaP nano-complexes achieved the best antitumor effect in vivo, promising the future clinic use of cisplatin for effective chemotherapy to pancreatic cancer.
A fluid description based on the Bernoulli equation of the one-body stationary states of quantum mechanics with real valued wavefunctions
Authors: Finley James P 
Published: March 2022

Abstract
A formalism is developed, and applied, that describes a class of one-body quantum mechanical systems as fluids where each stationary state is a steady flow state. The time-independent Schrödinger equation for one-body stationary states with real-valued wavefunctions is shown to be equivalent to a compressible-flow generalization of the Bernoulli equation of fluid dynamics. The mass density, velocity and pressure are taken as functions that are determined by the probability density. The generalized Bernoulli equation describes compressible, irrotational, steady flow with variable mass and a constant specific total energy, i.e, a constant energy per mass for each fluid element. The generalized Bernoulli equation and a generalized continuity equation provide a fluid dynamic interpretation of a class of quantum mechanical stationary states that is an alternative to the unrealistic, static-fluid interpretation provided by the Madelung equations and quantum hydrodynamics. The total kinetic energy from the Bernoulli equation is shown to be equal to the expectation value of the kinetic energy, and the integrand of the expectation value of the kinetic energy is given an interpretation. It is also demonstrated that variable mass is necessary for a satisfactory fluid model of stationary states. However, over all space, the flows conserve mass, because the rate of mass creation from the sources are equal to the rate of mass annihilation from the sinks. The following flows are examined: the ground and first excited-states of a particle in a one-dimensional box, the harmonic oscillator, and the hydrogen s states.