bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hybrid capacitor based on carbon matrix for intelligent electric energy storage and transportation system
Authors: Diteleva A , Sleptsov V , Savilkin S , Matsykin S , Granko A 
Published: June 2021

Abstract
This paper describes the developed complex of vacuum thin-film technologies for creating electrode materials of energy storage devices for an intelligent source of accumulation, storage and transportation of electricity. Thin-film technologies, in contrast to thick-film technologies, allow more efficient use of surface properties, using nanostructured materials and structures. The developed complex allows us to implement a promising technology for creating a new generation of electrode materials based on a flexible carbon matrix with a highly developed surface. On the basis of the developed electrode material, hybrid capacitors were manufactured and studied, the specific energy of which is currently ∼ 20 W·h/kg, which is a higher indicator than the currently available indicators in the literature. The article also discusses ways to increase the energy intensity to ∼ 50 W·h/kg.
Developing scientific competencies: a collaboration between High School teachers and Physics researchers to create experiment-based learning activities
Authors: Pallotta Filippo , Parola Alberto , Bondani Maria 
Published: June 2021

Abstract
The last EU recommendations on key competences for lifelong learning encourage educational institutions to strengthen the collaboration between Physics researchers and Secondary School teachers to implement competence-oriented education, training and learning. Our group has carried out a collaboration project with a group of high school physics teachers engaged in a PLS (Progetto Lauree Scientifiche) professional development course promoted by the Department of Science and High Technology (DiSAT – Dipartimento Scienze e Alta Tecnologia) of Insubria University in Como, Italy. The aim of the course was to enable teachers to create balanced and effective learning activities to be used in class to reinforce the scientific competencies and skills required in the Final Exam of the Italian Secondary School (Esame di Stato) and in the entire physics curriculum. This paper presents the result of this collaboration to understand how to better support the collaboration between Physics researchers and High School teachers in order to design teaching and learning materials that can be effectively integrated in the daily classroom activities, focusing the attention on problem solving and data interpretation skills, as requested by the last education reform for Italian Secondary School Final Exam.
Colours: Human Vision and Surroundings
Authors: Montalbano Vera , Marchini Daniela 
Published: June 2021

Abstract
We propose interdisciplinary teaching-learning sequences focusing on colours. How do we perceive colours? How do animals perceive it? How do some animals make unusual coloured liveries? The proposal was initially tested with high school students in a summer school, then it was discussed in a summer school for science teachers in order to enhance the interdisciplinary aspects. Finally, it was proposed and discussed in a training event for in-service science teachers. Involvement and motivation in the learning process were the main reactions expected and the forecasts were fully achieved.
The subject of waves in a new approach introductory steps of a Design Based Research (DBR)
Authors: Finta Zs , Jenei P , Schramek A 
Published: June 2021

Abstract
Based on years of teaching, our team aims to elaborate a modern experimental manual with a modular structure meant to entwine the features of a traditional book on paper support with the advantages of an e-book. The chapter on the Wave Theory has been written as a start-up. In our vision, the core material of the manual is targeting those high-school students who do not wish to study Physics on a higher level, meanwhile the extensions to the lessons (such as the simulations, high-level extra information and any other attractive topics etc.) are for the students who are interested in Physics and who are thus given the possibility of a more profound study. The traditional manual would be designed to cover the core material, and the extensions would be made accessible via smartphones, as well as the QR-codes placed in the lessons. The webpage that has been added to the online version includes the written lessons, the extensions being placed into so-called boxes. Approach to the chapter largely differs from any previous approaches as the wave types are presented along with the description of the related wave phenomena. Practicality and efficiency testing of the webpage is ongoing in a rather close circle via questionnaires and a multiple choice test, the manual to be continuously improved and amended subsequent to the feedback we receive and according to our own teaching experiences..
Development of inquiry skills at lower secondary school level
Authors: Kireš Marián , Jurková Veronika 
Published: June 2021

Abstract
As part of a national IT Academy project, our goal is to increase pupils’ interest in studying Informatics and STEM subjects in general. We consider the changes in education focused on targeted use of the IBSE approach to be key. We monitor the development of pupils’ skills and the degree of conceptual understanding of key concepts and phenomena. To introduce the necessary innovations in every STEM subject, a team of experts has proposed 60 innovative lessons (methodologies), for each subject. The methodologies were piloted and evaluated by experienced teachers, modified and re-entered in the verification. Teachers have the opportunity to participate in continuous education, where they gain experience with inquiry teaching approach, formative assessment and strategies for developing pupils’ skills. One of the key conditions for teachers to begin to trust in innovation is to gain confidence in their importance and benefits. In order to motivate teachers, we used initial measurements of selected skills of pupils. Our goal is to prove the necessity of systematic monitoring and targeted development of skills through the offered educational activities. Within the national project IT academy, a multiple choice test has been developed to assess skills to making predictions and following directions. The tasks are inspired by the real life situations pupils either have experienced before or it is possible they will experience. The test items have a form of an on-line assignment. The pre testing was conducted at the lower secondary schools joined into national project. Pre-test results are made available to schools to respond by introducing innovative methodologies into their school curricula. In the paper we present selected results of the entrance skills test, analysis of questions focused on the development of individual skill levels and comparison of results depending on the school year of pupils.
Smartphone sensors and video analysis: two allies in the physics laboratory battle field
Authors: Monteiro M , Cabeza C , Stari C , Marti A C 
Published: June 2021

Abstract
Recently, two technologies: video analysis and mobile device sensors have considerable impacted Physics teaching. However, in general, these techniques are usually used independently. Here, we focus on a less-explored feature: the possibility of using supplementary video analysis and smartphone (or other mobile devices) sensors. First, we review some experiments reported in the literature using both tools. Next, we present an experiment specially suited to compare both resources and discuss in detail some typical results. We found that, as a rule, video analysis provides distances or angular variables, while sensors supplies velocity or acceleration (either linear or angular). The numerical differentiation of higher derivatives, i.e. acceleration, usually implies noisier results while the opposite process (the numerical integration of a temporal evolution) gives rise to the accumulation of errors. In a classroom situation, the comparison between these two techniques offers an opportunity to discuss not only concepts related to the specific experiment but also with the experimental and numerical aspects including their pros and cons.
GIREP Community on teaching / learning quantum physics in secondary school
Authors: Michelini M , Pospiech G , Faletič S , Stefanel A 
Published: June 2021

Abstract
The present paper summarizes the building of the GIREP community on teaching and learning quantum physics in secondary school and the results of the community’s first discussion workshop. The questions for the workshop were prepared using feedback from the community members. The participants to the Working Discussion in Budapest Conference were divided in five groups, each focusing on distinct approaches in teaching quantum physics, as identified by the community. The five groups discussed the questions and identified core concepts that any course on quantum physics should cover. They also identified some specificities of each approach and discussed which approaches are particularly well suited or poorly suited to address specific concepts. The paper describes the creation of the community, the process of selecting the questions for the workshop and the results of the discussion on specific questions. The group identified potential research questions that should be addressed with future research. The results are summarized into a short position statement on the future goals of the community.
Quantum Computing for high school: an approach to interdisciplinary in STEM for teaching
Authors: Satanassi Sara , Fantini Paola , Spada Roberta , Levrini Olivia 
Published: June 2021

Abstract
The paper focuses on a Quantum Computing teaching module for high school students that was designed and implemented within the I SEE Erasmus+ project (https://iseeproject.eu) The module is discussed as an example of how the S-T-E-M disciplines can be integrated to stress the conceptual, epistemological, and social relevance of quantum computing. We implemented a three-level approach to introduce quantum technologies without getting lost in the technicalities. The approach has allowed us to highlight the difference between classical and quantum computers and to bring out the interdisciplinary character that characterises the new technologies.
Development and evaluation of introductory physics lab curriculum to promote scientific reasoning abilities
Authors: Koenig Kathleen , Wood Krista E , Bao Lei 
Published: June 2021

AbstractResearch indicates students with more formal reasoning patterns are more proficient learners, while certain critical thinking abilities are important for living in modern society. Unfortunately, college courses do not typically promote these skills. In order to address this concern, we have developed a first semester introductory physics lab curriculum in which students engage in experimental design with emphasis placed on the use of evidence-based reasoning in making decisions in the lab and in report writing. This paper describes the underlying framework on which the curriculum is based and presents data which demonstrates significant shifts in student development of certain aspects of scientific reasoning.
From Dublin descriptors to implementation in Bachelor labs
Authors: Logman P S W M , Kautz J 
Published: June 2021

Abstract
A description of the implementation of a completely renewed setup for Physics Bachelor labs is given. The renewed setup made use of the latest educational research insights and is described from the general Dublin descriptors and the CALOHEE assessment and National domain specific reference frame up to the concrete learning objectives that we aim for in the Bachelor practicals. A choice between more open and closed labs is discussed. This study makes use of educational design research and therefore mostly tests design principles. In general, the design principles behind the renewed setup have worked and students have been given a need to perform each step in the research process. Despite the courses becoming more challenging, students’ results have gone up. We attribute this to specific types of iterations within the closed practicals and on the alternation between closed and open labs. Overall, most students attained the experimental skills that we aimed for and by the end of the practicals in year 2 most students also obtained the most relevant CALOHEE dimension of ‘Experimental design and scientific inquiry’, designed to assess students after year 3. The remaining obstacles are identified and suggestions for future improvements are given.
Bounces of a marble and Zeno’s paradox
Authors: Luca R De , Mauro M Di , Naddeo A 
Published: June 2021

Abstract
The coefficient of restitution of the bounces of a marble on a table is here studied and measured in terms of the total bouncing time. Interesting links arise with mathematics (geometric series) as well as philosophy (Zeno’s paradox), which make our proposal appealing for an interdisciplinary teaching-learning sequence. The relevance of this work for high school and undergraduate students is discussed with emphasis on students’ misconceptions when dealing with infinite processes.
Opinions of Prospective Teachers about Physics-Technology and Physics Teaching
Authors: Çildir Sema 
Published: June 2021

Abstract
In this age, the need for technology literate workforce has increased. The responsibility of teachers has increased in the education systems that will train this workforce. In order for individuals to be trained in accordance with the skills required for the 21st century, it is important to train prospective teachers for these skills. Physics course has an important place in science and accordingly technology. In this study, it was aimed to increase the awareness of prospective teacher candidates on this subject and to develop the skills of researching technology, understanding, and transferring them in accordance with the classroom environment. The study was carried out with a total of 21 students according to qualitative research methods in 2016-2017-2018 fall semesters. They were asked to research the two technologies they wanted, to identify the physics topics within the scope of these technologies, and to transfer this to the classroom environment. Findings were obtained from the data collected through observation, document review and semi-structured interview techniques. At the end of the study, it was determined that prospective teachers increased their awareness about the importance of technology and physics in technology in physics teaching. In addition, it was concluded that prospective teachers wanted to research new technologies and adopt the behaviour of discussing technology in their lessons. It is suggested that these results should be extended to other prospective teachers in order to train individuals not only using technology but also producing it.
Implementing EU Interactive Teaching Methods at Al-Farabi Kazakh National University1
Authors: Akimkhanova Zhuldyzay Ye , Turekhanova Kunduz M. , Karwasz Grzegorz P. 
Published: June 2021

Abstract
This article presents the effectiveness of multimedia tools and communication technologies usage in teaching electricity and magnetism course at al-Farabi Kazakh National University, Kazakhstan. The implementations are based on prepared multimedia packages within EU projects of Didactics of Physics Division at Nicolaus Copernicus University in Toruñ in earlier collaboration with University of Udine, Italy and Charles University, Prague. The implemented packages at KazNU are simple didactical objects (“Physics and Toys”) and “hands-on” experiment in electromagnetism. All implementations were positively evaluated by students, as they lead to an increased didactical efficiency and improve students’ motivation to in self-learning.
Single-shot grating-based phase-contrast imaging of a micrometer sample at a laser-driven x-ray backlighter source
Authors: Akstaller B. , Schreiner S. , Hofmann F. , Meyer P. , Neumayer P. , Schuster M. , Wolf A. , Zielbauer B. , Ludwig V. , Michel T. , Anton G. , Funk S. 
Published: June 2021

Abstract
A single-shot x-ray phase-contrast imaging technique with short exposure time allows to capture sharp images of fast dynamic processes despite low absorption contrast. We demonstrate the capabilities of a robust single-shot grating-based phase-contrast imaging setup at the Petawatt High-Energy Laser for Heavy Ion EXperiments (PHELIX) at the GSI Helmholtzzentrum für Schwerionenforschung GmbH. A static test sample was imaged at 47-fold magnification using a laser-driven high-energy x-ray backlighter source. The retrieved transmission and phase-contrast images yield reproducible results. The reconstructed differential phase-images are quantitatively explained. In addition to the phase-images, propagation signatures are found in the data and used for result verification. The obtained results demonstrate the capabilities of the grating setup which can be used to image microscopic dynamic processes in high-energy density plasma experiments at PHELIX or similar high-power laser facilities.
Fast switching magnet for heavy ion beam separation
Authors: Kutsaev S.V. , Agustsson R. , Hartzell J.J. , Mustapha B. , O'Shea F. , Savin E. 
Published: June 2021

Abstract
This paper presents the design for a switching magnet
capable of deflecting 6.5 MeV/u heavy-ion beams with mass-to-charge
ratio of 7 by 10 degrees. This magnet can produce variable flat-top
pulses from 1 to 30 ms with rise and fall times of less than
0.5 ms at a variable duty cycle of 3–91% into a heavily inductive
load. The magnet has a laminated, iron dominated, H-shaped
core. Directly-cooled copper pancake coils energize the magnet. We
present the magnet design considerations, including the results of
extensive computer modeling. We also present the conceptual
engineering design and the studies of magnet yoke fabrication.
Thermal analysis for fundamental power coupler of HALF 499.8 MHz superconducting cavity
Authors: Tang Y. , Wu C.-F. , Wang L. 
Published: June 2021

Abstract
The preliminary research work of Hefei Advanced Light
Facility (HALF), a fourth generation diffraction limit storage ring,
is in progress. Two 499.8 MHz superconducting cavities may be used
in the HALF RF system. RF power will be feed into each cavity
through a coaxial fundamental power coupler (FPC). Thermal design of
the coupler is very important because of the large power losses on
the coupler will cause overheating. Accurate and fast thermal
analysis is a challenge in the thermal design. In this paper, two
thermal analysis methods for evaluating the cooling effect of the
coupler were compared. Computational Fluid Dynamics (CFD) code is
used to perform thermal-fluid coupled analysis for the coupler in
the first method, which is quite accurate but time-consuming. In the
second method, average convective heat transfer coefficient
calculated by correlation equations based on experimental results is
used to evaluate the heat transfer between the fluid and the cooling
pipe wall. The calculation time of the first method is about four
times that of the second method. The simulation results of the two
methods are consistent well at high flow rate, especially for
turbulent flow. Therefore, the second method was used to perform
thermal simulation under different cooling conditions and RF power
levels. The influence of thermal radiation on the heat load to the
cryogenic environment was also given in this paper. Simulation
results show that thermal radiation has a slight impact on the heat
load. When the copper emissivity equal to 0.02, the total static and
dynamic heat load to 4.5 K are 0.833 W and 2.614 W at the power
level of 200 kW, and the heat load to 4.5 K cryogenic environment
caused by thermal radiation is 0.065 W.
Monitoring The Sea Surface Temperature and Total Suspended Matter Based on Cloud-Computing Platform of Google Earth Engine and Open-Source Software
Authors: Ramdani F , Wirasatriya A , Jalil A R 
Published: June 2021

Abstract
The sea surface temperature and total suspended matter is important for fisheries industry to increase the opportunity to catch the fish. Traditional methods to monitor this phenomenon is by using the remote sensing techniques. However, conventional remote sensing methods is need higher computer specifications as well as larger space of hard disk drive and commercial software to process the datasets. The availability of cloud-computing platform such as Google Earth Engine that available free for public will provide benefit for researcher to increase the efficiency and effectivity of large-scale imageries processing. This study proposed the sate-of-the-art cloud-computing platform of GEE to monitor and map the sea surface temperature and total suspended matter for long periods of analysis of Timor Sea, Van Diemen Gulf, and Beagle Gulf, Australia. In total there more than 600 images of Landsat 8 Collection 1 Tier 1 calibrated top-of-atmosphere (TOA) reflectance is used and obtained within the GEE platform. The Radiative transfer equation (RTE) method is used to extract the surface temperature. To extract the total suspended matter, the Sentinel-3 Ocean and Land Color Instrument Earth Observation Full Resolution (OLCI EFR) is used. The Case-2 Regional CoastColour (C2RCC) processor within the SentiNel Application Platform (SNAP) software is used. The result show that the GEE platform is successfully captured the dynamic sea surface temperature as well as the total suspended matter with high efficiency in term of time and hard disk drive consumption.
Research on Construction Application of Earth and Stone Blasting Technology in Subgrade Excavation Engineering
Authors: Kong Lingqiang 
Published: June 2021

Abstract
It is more difficult to construct stone subgrade than earthwork subgrade, so quality control should be strengthened in every link during construction. In the actual construction process, because the rock or geological structure is complex, blasting technology should be applied to achieve the purpose of earth and stone excavation. However, the application of blasting technology will bring many potential safety hazards, and even cause a large number of casualties in severe cases. Construction units should strengthen construction management, strictly regulate the application of technology, and avoid the occurrence of safety accidents. In order to ensure the high efficiency and safety of construction, the relevant engineering construction departments should fully display their guarantee function and reasonably apply the blasting technology. On the basis of introducing the engineering characteristics, this paper analyzes the construction requirements of earthwork and stone excavation of subgrade, and discusses how to correctly apply earthwork blasting technology in highway subgrade excavation engineering.