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检索条件"任意字段=8th International Scientific Conference on Computing in Physics and Technology, CPT 2020"

共 134 条记录，以下是21-30 订阅

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Mobile edge computing based video surveillance system using special hardware and virtualization technology 8

Mobile edge computing based video surveillance system using ...

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8th Annual international conference on Geo-Spatial Knowledge and Intelligence, GSKI 2020

作者： Liu, Shaowei Zhang, Tingting Cui, Ningbo Zhang, Hao Chen, Jiayuan Department of Network and IT Technology Research China Mobile Research Institute No.32 Xuanwumen west street Xicheng District Beijing China

As technology evolution, the solution for society security system is a hot research topic. Video surveillance is an important guarantee for society security. To meet various application scenarios, quick end-to-end (E2E) response is the key of video surveillance system. Mobile edge computing (MEC) could reduce E2E delivery delay by processing data nearby the data source. this paper introduces a MEC based solution that uses special hardware, graphics processing units (GPU), to accelerate graphic data processing. Taking the limited resource of edge scenario into consideration, virtualization technology is used to share computing resource on demand. the solution also proposes deployment policy basing on functional component’s requirement. Finally, this paper verifies the solution and puts forward recommendations. © 2021 Institute of physics Publishing. All rights reserved.

关键词： Security systems

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From Alternative to scientific Conceptions in the Learning of physics of Sound: Students’ Perceptions of Learning Using Active Methodologies and Computer Simulators

From Alternative to Scientific Conceptions in the Learning o...

引用

international conference in Information technology and Education, ICITED 2021

作者： Conde, Bruno Santos, Filipe Barreto, Maria Antónia Pereira, Maria Isabel Alves Rodrigues Fonseca, Marta Agrupamento de Escolas Domingos Sequeira Leiria2400 Portugal CI&DEI Centro de Estudos em Educação e Inovação Politécnico de Leiria Escola Superior de Educação e Ciências Sociais Leiria2400 Portugal

ISBN: (纸本)9789811650628

Learning physics is an area with numerous difficulties and alternative conceptions often limit a deeper understanding of several domains of this discipline. In particular, in the field of sound, it is common to find such misconceptions. Active learning methodologies have been used effectively for science teaching in a constructivist approach. the use of these methodologies to address alternative conceptions can promote the construction of mental models that are closer to scientifically accepted conceptual models. In this paper, we present a work in progress, which analyzes the students’ perception of the contribution of computer simulators integrated into active methodologies to improve their learning. For this purpose, we present the results obtained from the implementation of a sequence of didactic activities, which took place in a context of emergency remote teaching (ERT). this study was conducted with a class of 23 8th-grade students from a school cluster in central Portugal, during the month of March 2021. the results suggest that students felt the characteristic engagement of activities based on active methodologies and the use of simulators, but showed limitations in the activities regarding the perception of orientation and the surprise factor, limitations that can be attributed to the high degree of autonomy that was required of them. © 2022, the Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Students

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Effective technology to visualize virtual environment using 360-degree video based on cubemap projection 8

Effective technology to visualize virtual environment using ...

引用

8th international scientific conference on computing in physics and technology, cpt 2020

作者： Timokhin, P.Y. Mikhaylyuk, M.V. Federal State Institution «Scientific Research Institute for System Analysis of the Russian Academy of Sciences» Moscow Russia

the paper dealt with the task of increasing the efficiency of high-quality visualization of virtual environment (VE), based on video with a 360-degree view, created using cubemap projection. Such a visualization needs VE images on cube faces to be of high resolution, which prevents a smooth change of frames. To solve this task, an effective technology to extract and visualize visible faces of the cube is proposed, which allows the amount of data sent to graphics card to be significantly reduced without any loss of visual quality. the paper proposes algorithms for extracting visible faces that take into account all possible cases of hitting / missing cube edges in the camera field of view. Based on the obtained technology and algorithms, a program complex was implemented, and it was tested on 360-video of a virtual experiment to observe the Earth from space. Testing confirmed the effectiveness of the developed technology and algorithms in solving the task. the results can be applied in various fields of scientific visualization, in the construction of virtual environment systems, video simulators, virtual laboratories, in educational applications, etc. Copyright © 2020 for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 international (CC BY 4.0)

关键词： Virtual reality

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Network approach for visualizing the evolution of the research of cross-lingual semantic similarity 8

Network approach for visualizing the evolution of the resear...

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8th international scientific conference on computing in physics and technology, cpt 2020

作者： Khakimova, Aida Kh. ANO «Scientific and Research Center for Information in Physics and Technique» Nizhny Novgorod Russia

the paper is devoted to the problem of the bibliometric study of publications on the topic "Cross-lingual Semantic Similarity", available in the Dimensions database. Visualization of scientific networks showed fragmentation of research, limited interaction of organizations. Leading countries, leading organizations and authors are highlighted. Overlay visualization allowed us to assess the trends in citing authors. the expansion of the geography of research is shown. For international cooperation, the uniformity of semantic approaches to describing the concepts of critical infrastructure, incidents, resources and services related to their maintenance and protection is important. the stated approaches can be applied for visualization and modeling of technological development in the modern digital world. Semantic similarity is a longstanding problem in natural language processing (NLP). the semantic similarity between two words represents the semantic proximity (or semantic distance) between two words or concepts. this is an important problem in natural language processing, as it plays an important role in finding information, extracting information, text mining, web mining and many other applications. Copyright © 2020 for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 international (CC BY 4.0)

关键词： Visualization

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Nanostructuring at oblique incidence deposition of cobalt 8

Nanostructuring at oblique incidence deposition of cobalt

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8th international School and conference "Saint Petersburg OPEN 2021" on Optoelectronics, Photonics, Engineering and Nanostructures, SPbOPEN 2021

作者： Akulov, A.A. Trushin, O.S. Popov, A.A. Pestova, A.N. Mazaletsky, L.A. Lomov, A.A. Department of Nanotechnology in Electronics P.G. Demidov Yaroslavl State University Sovetskaya Street 14 Yaroslavl150003 Russia Valiev institute of physics and technology of RAS Yaroslavl Branch Universitetskaya Street 21 Yaroslavl150007 Russia Valiev institute of physics and technology of RAS Nakhimovsky Prospect 36 Moscow117218 Russia

Nanocolumnar Co thin films growth by oblique angle deposition on Si substrate is experimentally studied. Formation of regular arrays of tilted Co nanocolumns has been observed at incidence angles more than 70°. It was found that the optimal conditions for nanostructuring are realized at the inclination angle 85°. As obtained films have magnetic anisotropy axis inclined to the substrate surface and oriented along nanocolumns. Such films might be perspective material for applications as a magnetic recording media for next generations of hard disks. © 2021 Institute of physics Publishing. All rights reserved.

关键词： Cobalt

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the impact of STEM PjBL on students' engineering practice, scientific practice, and scientific attitude 1

The impact of STEM PjBL on students' engineering practice, s...

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1st South East Asia Science, technology, Engineering and Mathematics international conference, SEA- STEM 2020

作者： Admawati, H. Jumadi, J. Department of Science Education Graduate School Yogyakarta State University Yogyakarta Indonesia

the study aimed to analyze the effect of Science technology Engineering and Mathematics (STEM) Project-based Learning (PjBL) on students' engineering practice, scientific practice, and scientific attitude. scientific and engineering practice in this research focused on the planning and carrying out investigations (PCOI) aspect and obtaining, evaluating, and communicating information (OECI) aspect. this study employed the pretest-posttest control group design of experimental research. In this study, 70 of 8th-grade junior high school students in Yogyakarta were determined by a simple random sampling technique to become subjects. Data were obtained through (1) a multiple-choice test to measure the planning investigation and obtaining, evaluating, and communicating information as cognitive domains, (2) an observation sheet to observe the carrying out investigation as a psychomotor domain, (3) a questionnaire to obtain students' scientific attitude of this study. the test instrument, the observation sheet, and the questionnaire had been developed and validated. Data from this study were analyzed by MANOVA in SPSS 16. the result of this study showed that STEM PjBL effected students' scientific practice, engineering practice, and scientific attitude. © Published under licence by IOP Publishing Ltd.

关键词： Students

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Approaches to assessing the semantic similarity and future citation of publications by identifying informative terms with predictive properties 8

Approaches to assessing the semantic similarity and future c...

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8th international scientific conference on computing in physics and technology, cpt 2020

作者： Khakimova, A.Kh. Charnine, M.M. ANO «Scientific and Research Center for Information in Physics and Technique» Nizhny Novgorod Russia FRC CSC of the Russian Academy of Sciences Moscow Russia

the article discusses new approaches to assessing the semantic similarity of documents in a vector space, taking into account statistically significant and informative terms. Informative terms reflect the current state of research in a certain field of research. To select informative terms, an algorithm for calculating the impact factor of the term is proposed. It is shown that informative terms allow both to evaluate the semantic similarity of texts and to predict future citations. the developed methods for assessing the semantic similarity and future impact of scientific publications can be used in the framework of "Predictive optimization", a modern technology that allows us to make decisions based on forecasts. In evaluating the activities of research and individual scientists, bibliometric indicators often play an important role. However, the use of citation-based indicators is problematic in determining the impact of recent publications. Usually, two years after the publication of most articles, they receive only a few links. the probability of future citation can be predicted using the proposed indicator - IFT. Copyright © 2020 for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 international (CC BY 4.0)

关键词： Forecasting

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Axiomatic basis and methods for interpreting conflict situations in an urgent computing environment 8

Axiomatic basis and methods for interpreting conflict situat...

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8th international scientific conference on computing in physics and technology, cpt 2020

作者： Nechaev, Yu.I. Osipov, V.P. Baluta, V.I. Saint Petersburg state Maritime technical University Russia Keldysh Institute of applied mathematics Russian Academy of Sciences Russia Plekhanov Russian University of Economics Russia

the article deals with the issues of developing an axiomatic basis and interpreting conflict situations in conditions of high uncertainty based on the dynamic theory of catastrophes. Control over conflict situations is provided using applied modeling at the expense of the supercomputer center through system integration of technologies and tools for processing large amounts of current information. Functional components of the center for applied simulation implement dynamic visualization and development of management decisions. the key factor in ensuring the safety of critical facilities in a complex conflict situation is the speed of assessment of the situation and the development of adequate management decisions for the implementation of the response. Adequate management is based on experience, as a rule, obtained experimentally in the course of physical modeling of impacts (exercises, trainings, experiments, etc.), and accumulated in the form of a knowledge base of the information and analytical decision support system of the center for applied simulation. Copyright © 2020 for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 international (CC BY 4.0)

关键词： Decision support systems

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Analysis of the actions of NPP personnel in making decisions 8

Analysis of the actions of NPP personnel in making decisions

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8th international scientific conference on computing in physics and technology, cpt 2020

作者： Berberova, M.A. Khakimova, A.Kh. Zolotarev, O.V. MIREA - Russian Technological University Moscow Russia ANO «Scientific and Research Center for Information in Physics and Technique» Nizhny Novgorod Russia ANO «Russian New University» Moscow Russia

the operational experience of nuclear facilities shows that personnel reliability has a significant impact on safety. We consider the reliability of the staff as the property (ability) of the staff to accurately and timely perform the necessary actions prescribed by the operating instructions, both during normal operation and in an accident. Personnel Reliability Analysis (PRA) is one of the significant tasks of probabilistic safety analysis. there are problem situations at NPP: the analysis methods and techniques used, the variety of solving tasks, the wide range and diverse nature of errors that a human operator can potentially make, the numerous factors affecting the probability of a particular error. All this makes it necessary to develop an automated personnel reliability analysis system that can support a specialist performing probabilistic safety analysis (PSA) in terms of performing the reliability analysis of the human operator, to ensure the required accuracy, quality and completeness of the results of the personnel reliability analysis. Copyright © 2020 for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 international (CC BY 4.0)

关键词： Personnel

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In situ synthesis of sio2 nanoparticles by sol-gel method on cotton fabrics and investigation of their physical and chemical properties 1st

In situ synthesis of sio2 nanoparticles by sol-gel method on...

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4th international conference on Sensors, Materials and Manufacturing, ICSMM 2020, 8th international conference on Nanomaterials and Materials Engineering, ICNME 2020 and 9th international conference on Nano and Materials Science, ICNMS 2021

作者： Shahidi, Sheila Mohammadbagherloo, Hakimeh Elahi, Seyedmohammad Dalalsharifi, Sanaz Mongkholrattanasit, Rattanaphol Department of Textile Arak Branch Islamic Azad University Arak Iran Depertment of Physics Science and Research Branch Islamic Azad University Tehran Iran Department of Textile Science and Research Branch Islamic Azad University Tehran Iran Department of Textile Chemistry Technology Faculty of Industrial Textiles and Fashion Design Rajamangala University of Technology Phra Nakhon Bangkok Thailand

ISBN: (纸本)9783035717891

In this paper, the sol-gel method was used for in-situ synthesis of SiO2 nanoparticles (NPs) on cotton fabrics with tetraethyl orthosilicate (TEOS) in the presence of acid and alkaline indicators. the samples were characterized using by (X-ray diffraction) XRD, (scanning electron Microscopy) SEM, (Inductively coupled plasma) ICP, water drop test and also the flame retardant properties were studied by char yield. the SEM images showed that the nanoparticles are spherical in shape and the acidity or alkalinity of the medium has an effect on the formation of particles. the XRD patterns showed the typical diffraction of amorphous SiO2 (Si-O short-order structure), also ICP analysis showed that by washing the fabrics, the nanoparticles are still present on the fabric, and this indicated the stability of the washing of the fabrics impregnated with the nanoparticles. By in-situ synthesis of SiO2 nanoparticles, the flame retardant properties have been improved significantly and the amount of residual char was increased and samples were observed to be hydrophilic. © 2021 Trans Tech Publications Ltd, Switzerland.

关键词： Sol-gels

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