bluuebunny/crossref_metadata_2025_split huggingface dataset:
Simulation Analysis and Optimal Design of Spinning Head Dynamic Balance
Authors: Mao Luyao , Zeng Wenhao , Cheng Xiping , Huang Dong , Chen Qiyu 
Published: December 2022

Abstract
The laying head is an important equipment in a high-speed wire rod production line. The dynamic imbalance of the spinning head will cause the laying head to vibrate greatly during operation, which will seriously affect the spinning quality and the life of the laying head. In order to make the dynamic balance of the laying head meet the requirements, the critical rotational speed of the laying head rotor is firstly analyzed by using ANSYS software, and it is concluded that the laying head rotor is a rigid rotor. Then, the double-sided dynamic balance simulation of the spinning head was carried out using ADAMS software, and the correction masses required by the spinning head on the two calibration surfaces were obtained. The counterweight structures are designed according to the dynamic balance simulation results, and the thicknesses of the counterweight structures are optimized. The dynamic unbalance masses M1 and M2 of the optimized spinning head in the two calibration planes are reduced from 1.2456kg and 3.7855kg before optimization to 3.9133e-6kg and 2.9954e-6kg, and the eccentricity is reduced from 0.9966mm to 0.0002236mm, meet the design requirements.
Intelligent Control Method for Head Thickness of Plate
Authors: He Chunyu , Wang Shuncai , Jiao Zhijie , Wang Jun 
Published: December 2022

AbstractIn the process of plate rolling, the characteristics of low head and tail temperature, large biting impact, and large torsional vibration affect the high-precision control of thickness, which makes it difficult to further improve the control accuracy of the traditional GM-AGC model based on feedback control. Using the characteristics of reversible plate rolling, the processing history information of the rolled piece during the entire rolling process is tracked, and the known information of the previous pass is used to intelligently correct the subsequent pass. Based on the traditional absolute AGC control model, adaptive thickness feedforward control is carried out for the sharply changing position of the thickness at the head of the rolling piece to reduce the thickness deviation of the unstable position.
Research on a control method of tunnel cable inspection track robot based on intelligent obstacle crossing
Authors: Liu Yuanyuan , Zhang Wei , Lin Ge Lin 
Published: December 2022

Abstract
In order to improve the resolution ability of the cable inspection robot in the dark environment of the tunnel and enable it to complete the autonomous obstacle avoidance control, a new intelligent obstacle crossing control method for the tunnel cable inspection track robot is studied, and the working environment of the inspection robot is explored, the Denavit-Hartenberg parameter method is used to establish the obstacle crossing model of the inspection robot, the joint variables of each robot are analyzed, and the position and posture of the end effector of the robot are obtained. The minimum value of the sum of moments is obtained by using the approximate solution method, and the winding deflection and torsion angle of the inspection robot is calculated by reverse solution. The robot obstacle-crossing motion workspace is analyzed by using the optimization algorithm, and the three-dimensional coordinate system is established. It is decomposed into the X-Y coordinate system, Y-Z coordinate system, and x-z coordinate system, so as to determine the maximum distance that the end gripper pops up on each axis, and judge whether the inspection robot can achieve obstacle crossing. According to the feedback results, intelligent control is carried out, and experiments are designed to verify the effectiveness of the control method. The results show that the voltage value of the inspection robot obtained by the control method is closer to the theoretical value, which can effectively help the robot to achieve obstacle-climbing operation accurately.
Simulation and performance degradation of carburized polyimide films in a space radiation environment
Authors: Ding Yigang , Shen Zicai , Nie Xiangyu , Zhang Yongtai 
Published: December 2022

Abstract
Advanced space materials are important to support the development of space technology. Their performance restricts the development of spacecraft to a great extent. However, the space environments encountered by spacecraft in orbit will lead to the degradation of material properties. The stability of the material in the space environment directly affects the performance level and service life of spacecraft. For the space radiation effects on space materials, a method to determine ground test parameters using depth-dose profile simulation is presented. By using this method, a ground test of the effects of space radiation environment in medium earth orbit for 8 years on carburized films was performed. The solar absorptance, infrared emittance, and surface resistivity of the test samples were measured. The results showed that the solar absorptance of the material changed significantly after irradiation, decreased by 10.3%, the infrared emittance decreased by 0.033, and the surface resistivity decreased slightly. The SEM photos indicated that the surface of the sample became rougher and there were more small holes. The XPS results indicated that the chemical bonds in the surface of samples changed under combined irradiation, and the C==O bond changed to C—O bond.
Study on prevention of symptoms based on plantar pressure array typesensor composite system
Authors: Zou Ji , Yu Lei , Ma Zhongjing 
Published: December 2022

Abstract
This paper focuses on the introduction of a low-cost, compatible measurement system for monitoring plantar pressure, which is suitable for today’s prevention of stress gait diseases. The gait analysis method is adopted and the technical specifications of the sensor array are determined. The analysis of measurement data based on deep learning method and neural network classification shows that it is possible to separate measurement between repeated patterns of health and disease. In order to realize the foot pressure sensor element, multi wall carbon nanotubes (MWTCNT) - polydimethylsiloxane (PDMS) - printed composite material was selected. In order to measure the plantar pressure distribution, a sensor matrix made of composite materials is completely printed and used in specific tests.
Numerical simulation analysis of laser-arc hybrid welding of austenitic stainless steel
Authors: Wang Yixuan , Bai Yang , Huang Chuhuan , Cui Bo , Gao Yingxiang 
Published: December 2022

Abstract
Laser-arc hybrid welding heat source has high energy density, and the temperature field is very uneven and unstable. It is impossible to systematically study the welding temperature field only through process tests. For this reason, the calculation of the thermal process of hybrid welding is of great significance to the systematic study of the temperature field of hybrid welding. In this paper, the laser-arc hybrid welding process of 8mm thick austenitic stainless steel was simulated by SYSWELD software. The results indicate that with the increase of laser energy, the melting time increases, and the peak temperature rises from 1,230°C to about 2,000°C; When the laser energy is 3.0 kW, the welding deformation reaches the minimum value of 0.68 mm, but the peak value of equivalent stress is high, which is 476.8193 MPa. When the arc voltage increases, the peak temperature rises from 1,650°C to 1,850°C, and the melting time increases. The arc voltage has little effect on the equivalent stress of the weld and has a clear impact on the welding deformation. When the voltage is 18 V, the maximum deformation reaches 2.191 mm.
Theoretical study of the 3H(p, e
+
e
−)4He and 3He(n, e
+
e
−)4He processes and the X17 anomaly
Authors: Viviani M. 
Published: December 2022

Abstract
The unexpected observation of eccess of events in the angular distribution of e−e+ pairs in various nuclear transitions has spurred a large interest, both experimentally and theoretically. This eccess has been interpreted as the possible existence of a new bosonic particle, the so-called X17, of mass around 17 MeV. In the present work, we investigate theoretically the possible effects of the presence of the X17 in the 3H(p, e
+
e
−)4He and 3H(n, e
+
e
−)4He reactions. For these processes it is possible to compute accurate ab initio bound- and continuum-states wave functions, so the existence of X17 can be unambigously revealed. Moreover, by exploiting the rich structure of the 4He spectrum, it is possible to determine its quantum number, as, for example, if it is either a scalar, a pseudoscalar, a vector, or an axial particle.
Searching for New Physics with DarkLight at the ARIEL Electron-Linac
Authors: Cline E , Corliss R , Bernauer J C , Alarcon R , Baartman R , Benson S , Bessuille J , Ciarniello D , Christopher A , Colon A , Deconinck W , Dehmelt K , Deshpande A , Dilling J , Dongwi D H , Fisher P , Gautam T , Gericke M , Hasell D , Hasinoff M , Ihloff E , Johnston R , Kanungo R , Kelsey J , Kester O , Kohl M , Korover I , Laxdal R , Lee S , Li X , Ma C , Mahon A , Martin J W , Milner R , Moore M , Moran P , Nazeer J , Pachal K , Patel T , Planche T , Rathnayake M , Suresh M , Vidal C , Wang Y , Yen S 
Published: December 2022

Abstract
The search for a dark photon holds considerable interest in the physics community. Such a force carrier would begin to illuminate the dark sector. Many experiments have searched for such a particle, but so far it has proven elusive. In recent years the concept of a low mass dark photon has gained popularity in the physics community. Of particular recent interest is the 8Be and 4He anomaly, which could be explained by a new fifth force carrier with a mass of 17 MeV/c
2. The proposed Darklight experiment would search for this potential low mass force carrier at ARIEL in the 10-20 MeV/c
2 e+e− invariant mass range. This proceeding will focus on the experimental design and physics case of the Darklight experiment.
Proton Radius: A Puzzle or a Solution!?
Authors: Jentschura Ulrich D. 
Published: December 2022

Abstract
The proton radius puzzle is known as the discrepancy of the proton radius, obtained from muonic hydrogen spectroscopy (obtained as being roughly equal to 0.84 fm), and the proton radius obtained from (ordinary) hydrogen spectroscopy where a number of measurements involving highly excited states have traditionally favored a value of about 0.88 fm. Recently, a number of measurements of hydrogen transitions by the Munich (Garching) groups (notably, several hyperfine-resolved sublevels of the 2S–4P) and by the group at the University of Toronto (2S–2P
1/2) have led to transition frequency data consistent with the smaller proton radius of about 0.84 fm. A recent measurement of the 2S–8D transition by a group at Colorado State University leads to a proton radius of about 0.86 fm, in between the two aforementioned results. The current situation points to a possible, purely experimental, resolution of the proton radius puzzle. However, a closer look at the situation reveals that the situation may be somewhat less clear, raising the question of whether or not the proton radius puzzle has been conclusively solved, and opening up interesting experimental possiblities at TRIUMF/ARIEL.
Electrodisintegration of 16O and determination of astrophysical S-factors of the inverse reaction
Authors: Friščić I. , Donnelly T.W. , Milner R.G. 
Published: December 2022

Abstract
We performed Monte Carlo calculations in a simple model that relates the radiative capture and electrodisintegration reactions and showed that by using a windowless gas jet target and modern energy-recovery linear accelerators (ERLs, CBETA at Cornell, MESA at Mainz, ARIEL e-linac at TRIUMF) to reach high luminosity, a high precision measurement of the electrodisintegration of the 16 O nucleus would provide a method to determine the rate of the α on 12 C radiative capture with a superb statistical precision compared to existing data. The calculations were done for the beam energies of 30, 50 and 114 MeV and show a significant reduction in terms of statistical uncertainties for the energy range E
c.m. < 2 MeV. The 114 MeV setting has the smallest statistical uncertainty, but at the same time the calculations for this beam energy setting were performed the furthest away from the real photon limit. The feasibility of this simple model still needs to be studied experimentally. This could be done with an experiment focused at Ec.m.
> 2 MeV region, where the cross section is much larger.
Comparison of Histogram Features and Co-occurrence Matrix in Identification of Lung Cancer X-Ray Images with Naive-Bayes Method
Authors: Bustomi M A , Rusnandar A M 
Published: December 2022

AbstractMany studies have been carried out on the identification of objects in the image. One feature often used in object identification is the histogram feature of digital images. The next development is the use of a digital image co-occurrence matrix as an identifier. This study aims to compare the use of two object identifiers in images that are not derived from visible light but are images derived from X-rays. In this study, the X-ray image is an X-ray image of lung cancer, and the object identification method used is the Naive Bayes method. The number of lung X-ray images used was 100 images. The master image is divided into 60 images for training and 40 images for testing. This study's results indicate that using a digital image co-occurrence matrix as an identifier gives better results than the histogram feature. This study concludes that the comparison of histogram features and co-occurrence matrix in X-ray images shows the same results as in visible light images.
The Influence of Guided Inquiry Learning Model through Experimental Method for Understanding the Concept of Students in Calorie Material
Authors: Sinon I L S , Sapari K R , Allo A Y T 
Published: December 2022

Abstract
This study aims to see the effect of the application of guided inquiry learning models through experimental methods on students' concepts comprehension in the calorific material of class XI at YPK Oikoumene High School. The instruments used in this project include pretest, posttest, and worksheet questions to measure students' cognitive domains and psychomotor observation sheets to measure students' psychomotor. This type of research is pre-experimental design research. The population in this study is the same as the sample used, namely class XI Science YPK Oikoumene High School academic year 2020/2021, amounting to 22 students. Data analysis using the application Facets, Ms Excel and SPSS 22. The results showed that the guided inquiry learning model through the experimental method influences the understanding of student concepts, and the n-gain test value of 0.78 is a high criterion. The value of psychomotor activity meeting 1, 2, and 3, respectively 86.14, 85.96, and 90.35, also increased. Psychomotor values can be seen that the guided inquiry learning model through the experimental method of understanding the concept has increased. It can be concluded that there is an influence of the guided inquiry learning model through the experimental method on students' concepts comprehension, worksheet, psychomotor, and happy learning physics.
Online-Based Assessment of Students’ Conceptual Understanding of Energy and Momentum Using Quizizz
Authors: Yana A U , Koes-H S , Taufiq A , Kusairi S 
Published: December 2022

Abstract
Energy and momentum are the two most fundamental topics taught in physics education, for many physical phenomena involve the analysis of these two concepts simultaneously. Therefore, an assessment of the conceptual understanding of the energy-momentum material needs to be carried out to explicitly map the level of conceptual understanding students have of the two materials. Quizizz is one online media that assesses understanding of energy-momentum physics concepts remotely and flexibly. This research was conducted on 66 high school students using five conceptual questions adapted from the Energy Momentum Conceptual Survey (EMCS). The results of the analysis show that the percentage of understanding the concept of energy and momentum of high school students is 54% and is in the intermediate level category.
Development of Digital Module ‘Phymology’ on Optical Instruments
Authors: Arnida N S , Wibowo F C 
Published: December 2022

Abstract
One of the technological innovations in the 21st century that can be applied in the learning process is the use of digital-based instructional media. While, the learning media in the form of digital modules is still relatively little used in learning physics in schools. This study aims to produce learning media in the form of a digital module 'Phymology' on optical instrument material. This research uses Research and Development (R&D) research methods and is based on the ADDIE development model. The ADDIE development model has five stages, namely the analysis stage, the design stage, the development stage, the implementation stage and the evaluation stage. The digital module in this optical instrument material was developed in the PBL (Problem Based Learning) stage and contains STEM aspects, namely science, technology, engineering and mathematics. The final result of the development of a digital module for this optical instrument material is an android application with an apk format that can be downloaded via the Google Play Store and then installed on the student's smartphone device.
Development of Mobile Learning Applications (MLA) Electromagnetic Induction Based on PjBL to Improve Students’ Critical Thinking Skills
Authors: Solihin A , Iswanto B H , Wibowo F C 
Published: December 2022

Abstract
Efforts Mobile or smartphone is one of the most strategic media used in 21st-century learning. This study aims to develop Mobile Learning Applications (MLA) Electromagnetic Induction Based on PjBL that are valid for physics learning in high school and improve the critical thinking skills of high school students on electromagnetic induction material. The method used in this research is Research and Development. Media development is carried out by referring to the ADDIE development model which consists of five stages of the development process, namely: Analyze; Design; Develop; Implement and Evaluate. The results of the electromagnetic induction MLA validity test by experts are in the very good category, as well as the results of the media implementation trials for teachers are in the very good category. The results of the trial implementation of the media to students were in a good category and the results of the N-gain test experienced an increase in the average N-gain score from pretest to post-test by 0.45 or 45% were in the medium category. Thus, it can be concluded that the development of Mobile Learning Applications (MLA) Electromagnetic Induction Based on PjBL which was carried out in this study was valid for physics learning in high school and could improve the critical thinking skills of high school students.
E-Book Learning Research in Physics Education During the Last Five Years: A Review and Bibliometric Study
Authors: Dawana I R , Dwikoranto  , Setiani R , Marsini  
Published: December 2022

Abstract
E-Book Research Increases every year consistently and has an excellent opportunity to be developed. This study aims to examine the type of document, the author's keywords, the country's contribution to learning about the subject of e-books in physics, and potential future research topics related to e-books. Through bibliometric analysis, a literature review is used in this research method with the help of Publish or Perish (PoP) software and Vosviewer to find articles. The data source was obtained from the Google Scholar database, which obtained 13,200 articles in 2017-2021 with the keywords "E-Book Physics Education". In the meantime, the Scopus database found 21 publications with the term "E-Book Physics" from 2007 to 2021. The results of the bibliometric analysis show that the trend of research topics and the contribution of Indonesian researchers is still relatively lacking, but the highest publication contribution by Indonesia. This is a challenge for future research to prove the extent to which the existence of E-Books can continue to be developed. Additionally, there are suggestions for research areas in learning with keywords, one of which is STEM. Therefore, E-Books can be used with a STEM approach to enhance students' learning abilities, particularly in understanding physics, and be used in subsequent studies.
Effectiveness of Polyvinyl Alcohol Nanofiber Composites as Anti-Bacterial Materials in Wound Dressing
Authors: Kusumawati D H , Munasir  , Rohmawati L , Uzalia P , Layli M D , Rahanti A B , Yuliani I 
Published: December 2022

AbstractClosing the wound using a wound dressing can speed up the wound healing process. The ideal wound dressing has the characteristics of being able to maintain the humidity of the environment around the wound and prevent the entry of microorganisms. In addition, wound dressings also do not cause a residual effect on the skin when removed, which can cause an irritating effect on the skin. This effect can be minimized by using a very fine fibrous wound dressing, in this case using a very small fiber (nanofiber). Materials that meet the criteria for wound dressings include polyvinyl alcohol (PVA). PVA composite nanofibers can be fabricated using the Electrospinning method. The nanofiber composites used include PVA/PVP/Chitosan, PVA/ZnO, PVA/Gelatin and PVA/Chitosan. Where the composite material has the ability to absorb, and the fiber diameter is in the range of 130-230 nm. Based on the anti-bacterial characterization, PVA composite effectively blocks the entry of microorganisms for approximately 3 - 4 hours, with efficiency ranging from 47.6% - 95.7%. The lowest efficiency was found in PVA/Gelatin composites and the highest in PVA/ZnO.
Level of Students’ Conceptual Understanding of Static Fluid
Authors: Irma Z U , Kusairi S , Yuliati L 
Published: December 2022

Abstract
The research aims to explore the level of students’ conceptual understanding of static fluid. This quantitative descriptive research involves 30 students. The research instrument consisted of 10 reasoning multiple choice questions with reliability is 0.629. Student responses are categorized into five levels of conceptual understanding, which are level 0 (NU), level 1 (SM), level 2 (PU/SM), level 3 (PU), and level 4 (SU). The result shows that most students at level 4 (SU) for the concept of hydrostatic pressure are related to density. Most students at level 3 (PU) for the concept of hydrostatic pressure related to the density of the fluid and the depth of objects, and the concept of material which can be floating. Most of the students at level 2 (PU/SM) for the concept of hydrostatic pressure related to the depth of objects, fluid pressure in an enclosed space, buoyancy, and the object's position in the liquid. Some things that can be done to reduce or eliminate students' misconceptions about this topic are deriving a hydrostatic pressure equation, conducting experiments using two injection pistons connected to a hose filled with fluid, and showing a demonstration of immersing two objects with the same mass but different volume or shape, deriving the origin of the equation for buoyancy, and finding the ratio of the density of the object and the fluid as a determinant of the position of the object in the fluid.