scholarly journals Making Historical Gyroscopes Alive—2D and 3D Preservations by Sensor Fusion and Open Data Access

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 957
Author(s):  
Dieter Fritsch ◽  
Jörg F. Wagner ◽  
Beate Ceranski ◽  
Sven Simon ◽  
Maria Niklaus ◽  
...  
Keyword(s):  
Industrial Revolution ◽  
Open Data ◽  
Data Access ◽  
Point Clouds ◽  
Optical Instruments ◽  
Advantages And Disadvantages ◽  
Complex Orientation ◽  
Digital Twins ◽  
The University ◽  
2D And 3D

The preservation of cultural heritage assets of all kind is an important task for modern civilizations. This also includes tools and instruments that have been used in the previous decades and centuries. Along with the industrial revolution 200 years ago, mechanical and electrical technologies emerged, together with optical instruments. In the meantime, it is not only museums who showcase these developments, but also companies, universities, and private institutions. Gyroscopes are fascinating instruments with a history dating back 200 years. When J.G.F. Bohnenberger presented his machine to his students in 1810 at the University of Tuebingen, Germany, nobody could have foreseen that this fascinating development would be used for complex orientation and positioning. At the University of Stuttgart, Germany, a collection of 160 exhibits is available and in transition towards their sustainable future. Here, the systems are digitized in 2D, 2.5D, and 3D and are made available for a worldwide community using open access platforms. The technologies being used are computed tomography, computer vision, endoscopy, and photogrammetry. We present a novel workflow for combining voxel representations and colored point clouds, to create digital twins of the physical objects with 0.1 mm precision. This has not yet been investigated and is therefore pioneering work. Advantages and disadvantages are discussed and suggested work for the near future is outlined in this new and challenging field of tech heritage digitization.

scholarly journals Making Historical Gyroscopes Alive – 2D and 3D Preservations by Sensor Fusion and Open Data Access

2020 ◽  
Author(s):  
Dieter Fritsch ◽  
Jörg F. Wagner ◽  
Beate Ceranski ◽  
Sven Simon ◽  
Maria Niklaus ◽  
...  
Keyword(s):  
Open Data ◽  
Data Access ◽  
Point Clouds ◽  
Advantages And Disadvantages ◽  
Complex Orientation ◽  
Digital Twins ◽  
Tangible Assets ◽  
History Of ◽  
The University ◽  
2D And 3D

Gyroscopes are fascinating instruments with a history of about 200 years. When J.G.F. Bohnenberger presented his machine to his students in 1810 at the University of Tuebingen, Germany, nobody could have foreseen that this fascinating development would be used for complex orientation and positioning. At the University of Stuttgart, Germany, a collection of 160 exhibits is available and in transition for a sustainable future. Here, the systems are digitized in 2D, 2.5D and 3D and are made available for a world-wide community using OpenAccess platforms. The technologies being used are Computed Tomography, Computer Vision, Endoscopy and Photogrammetry. The workflows for combining voxel representations and colored point clouds are described, to create Digital Twins of the tangible assets. Advantages and disadvantages are discussed und work for near future is outlined in this new and challenging field of Tech Heritage digitization.

scholarly journals Digital Twins for Education and Study of Engineering Sciences

2021 ◽  
Vol 2 (2) ◽  
pp. 61-69
Author(s):  
Serge Zacher
Keyword(s):  
Actual State ◽  
Industrial Plants ◽  
Advantages And Disadvantages ◽  
Software Model ◽  
Software Models ◽  
Digital Twins ◽  
Engineering Sciences ◽  
Rapid Control ◽  
Rapid Control Prototyping ◽  
The University

Generally a digital twin is a software-model as a prototype for some product, ordered by a customer. It shell be used on all stages of industrial production of this ordered product, compering the actual state with the model und correcting the differences. A “virtual world” will be created from the “real word” and both “worlds” communicate with each other during production. At the educational institutions of engineering like universities, trainings centres or schools the digital twins are software-models of industrial plants, which are simulated and visualized similar to its industrial originals and synchronized with them. The presented paper shows steps of design of digital twins upon some examples of the master degree program at the University of Applied Sciences Darmstadt. It will be described why and how it is possible to use the digital twins. The ways from an original device to its model will be drawn. The different stages of the development of software-models, which are equipped with different levels of source code, will be shown. The actual trends to include the hardware into a software-model, so called hardware-in-the-loop and rapid control prototyping, will be described. Finally the advantages and disadvantages of digital twins for engineering study including the economic considerations will be discussed.

scholarly journals DEMO: Virtual Reality Digital Twin for Floating Production Storage and Offloading (FPSO) Units

2019 ◽  
Author(s):  
Diego Barboza ◽  
Wesley De Oliveira ◽  
Marco Saraiva ◽  
Leo Soares
Keyword(s):  
Virtual Reality ◽  
Industrial Revolution ◽  
Collaborative Work ◽  
Data Access ◽  
Digital Twin ◽  
Digital Twins ◽  
Tech Nologies ◽  
Virtual And Augmented Reality ◽  
Visualization Tools ◽  
Key Industry

Digital Twin is one of the key Industry 4.0 tech-nologies that enable the fourth industrial revolution. With recent advances in tech, the availability of billions of IoT sensors gathering data, and virtual and augmented reality visualization tools, Digital Twins are a great way to provide a unified platform to access this data and interact and visualize them in virtual environments. This work presents an FPSO unit Digital Twin that allows collaborative work and data access in virtual reality.

MATHEMATICS TEACHER EDUCATION AND THE FLEXIBLE USE OF TECHNOLOGIES IN DIGITAL AGE

2019 ◽  
Vol 8 (2) ◽  
Author(s):  
Hans-Georg Weigand
Keyword(s):  
Teacher Education ◽  
Mathematics Teacher ◽  
Industrial Revolution ◽  
Empirical Studies ◽  
Mathematics Teacher Education ◽  
Digital Technologies ◽  
Digital Age ◽  
Competence Model ◽  
Advantages And Disadvantages ◽  
Concept Representations

Advantages and disadvantages of the use of digital technologies (DT) in mathematics lessons are worldwidedissussed controversially. Many empirical studies show the benefitof the use of DT in classrooms. However, despite of inspiringresults, classroom suggestions, lesson plans and research reports,the use of DT has not succeeded, as many had expected during thelast decades. One reason is or might be that we have not been ableto convince teachers and lecturers at universities of the benefit ofDT in the classrooms in a sufficient way. However, to show thisbenefit has to be a crucial goal in teacher education because it willbe a condition for preparing teachers for industrial revolution 4.0.In the following we suggest a competence model, which classifies– for a special content (like function, equation or derivative) –the relation between levels of understanding (of the concept),representations of DT and different kind of classroom activities.The flesxible use of digital technologies will be seen in relationto this competence model, results of empirical investigations willbe intergrated and examples of the use of technologies in the upcoming digital age will be given.

Open Issues and Security Challenges of Data Communication Channels in Distributed Internet of Things (IoT): A Survey

2018 ◽  
Vol 3 (1) ◽  
pp. 22-32 ◽  
Author(s):  
Ernest Ezema ◽  
Azizol Abdullah ◽  
Nor Fazlida Binti Mohd
Keyword(s):  
Internet Of Things ◽  
Radio Frequency Identification ◽  
Industrial Revolution ◽  
Security And Privacy ◽  
The Internet ◽  
Ongoing Research ◽  
Advantages And Disadvantages ◽  
Exchange Information ◽  
The Internet Of Things ◽  
Open Issues

The concept of the Internet of Things (IoT) has evolved over time. The introduction of the Internet of Things and Services into the manufacturing environment has ushered in a fourth industrial revolution: Industry 4.0. It is no doubt that the world is undergoing constant transformations that somehow change the trajectory and history of humanity. We can illustrate this with the first and second industrial revolutions and the information revolution. IoT is a paradigm based on the internet that comprises many interconnected technologies like RFID (Radio Frequency Identification) and WSAN (Wireless Sensor and Actor Networks) to exchange information. The current needs for better control, monitoring and management in many areas, and the ongoing research in this field, have originated the appearance and creation of multiple systems like smart-home, smart-city and smart-grid. The IoT services can have centralized or distributed architecture. The centralized approach provides is where central entities acquire, process, and provide information while the distributed architectures, is where entities at the edge of the network exchange information and collaborate with each other in a dynamic way. To understand the two approaches, it is necessary to know its advantages and disadvantages especially in terms of security and privacy issues. This paper shows that the distributed approach has various challenges that need to be solved. But also, various interesting properties and strengths. In this paper we present the main research challenges and the existing solutions in the field of IoT security, identifying open issues, the industrial revolution and suggesting some hints for future research.

scholarly journals Neighbourhood Modelling for Urban Sustainability Assessment

2021 ◽  
Vol 13 (9) ◽  
pp. 4654
Author(s):  
Javier Orozco-Messana ◽  
Milagro Iborra-Lucas ◽  
Raimon Calabuig-Moreno
Keyword(s):  
Sustainable Development ◽  
Impact Assessment ◽  
Urban Policy ◽  
Sustainability Assessment ◽  
Open Data ◽  
Policy Impact ◽  
Physical Parameters ◽  
Data Repositories ◽  
Digital Twins ◽  
Climate Action

Climate change is becoming a dominant concern for advanced countries. The Paris Agreement sets out a global framework whose implementation relates to all human activities and is commonly guided by the United Nations Sustainable Development Goals (UN SDGs), which set the scene for sustainable development performance configuring all climate action related policies. Fast control of CO2 emissions necessarily involves cities since they are responsible for 70 percent of greenhouse gas emissions. SDG 11 (Sustainable cities and communities) is clearly involved in the deployment of SDG 13 (Climate Action). European Sustainability policies are financially guided by the European Green Deal for a climate neutral urban environment. In turn, a common framework for urban policy impact assessment must be based on architectural design tools, such as building certification, and common data repositories for standard digital building models. Many Neighbourhood Sustainability Assessment (NSA) tools have been developed but the growing availability of open data repositories for cities, together with big-data sources (provided through Internet of Things repositories), allow accurate neighbourhood simulations, or in other words, digital twins of neighbourhoods. These digital twins are excellent tools for policy impact assessment. After a careful analysis of current scientific literature, this paper provides a generic approach for a simple neighbourhood model developed from building physical parameters which meets relevant assessment requirements, while simultaneously being updated (and tested) against real open data repositories, and how this assessment is related to building certification tools. The proposal is validated by real data on energy consumption and on its application to the Benicalap neighbourhood in Valencia (Spain).

Color and Coloristic Tasks in the Organization of the Methodology of Educational Projects in the Training of Architects and Designers at the University

2021 ◽  
pp. 57-61
Author(s):  
N. Ul'yanova
Keyword(s):  
Educational Activity ◽  
Project Work ◽  
Educational Work ◽  
Educational Design ◽  
Color Palette ◽  
Advantages And Disadvantages ◽  
Space Organization ◽  
Design Solutions ◽  
Architecture And Design ◽  
The University

The article is devoted to the meaning and use of the possibilities of color and pictorial combinations in architecture and design, when performing educational project tasks. The study examines the emerging problems in the organization of educational work. The purpose of the study is to create a comprehensive design methodology with the inclusion of a module of coloristic and color aspects. Possible methods of organizing project educational work are proposed. The advantages and disadvantages of performing these tasks are analyzed. The methods of project work are aimed at creating convenient and at the same time aesthetic architectural objects. The methods under consideration are based on practical work, which is the basis of any educational activity in the training of higher school specialists. When forming the educational methodology, the nature and technological possibilities of using color in the design of architectural and design solutions were taken into account. The presented project proposals are based on a practical experiment and demonstrate the possibilities of planning coloristic tasks. The study determines the problem based on the analysis of modern buildings and its architectural solutions. The analysis of this topic highlights the insufficient training of future specialists in the field of using the possibilities of color in architecture and design of residential and public buildings. The research suggests and analyzes artistic and aesthetic technologies of space organization. The results of the study put forward new tasks in the planning of educational design solutions, using color, harmony of the color palette, subordinate to the color and coloristic unity of the environment.

China’s Science-Based Innovation and Technology Transfer in the Global Context

2021 ◽  
pp. 314-336
Author(s):  
Jizhen Li ◽  
Ximing Yin ◽  
Subrina Shen
Keyword(s):  
Technology Transfer ◽  
Industrial Revolution ◽  
Government Officials ◽  
Global Context ◽  
Innovation And Technology ◽  
The University ◽  
University Industry ◽  
Critical Overview ◽  
And Diffusion ◽  
University Industry Linkages

Science-based innovation in universities and diffusion through university-industry linkages are the keys to strengthening national innovation capability, especially for emerging markets. This chapter provides a critical overview of China’s innovation and technology transfer between the university and industry in the context of globalization and the new industrial revolution. By doing this, the chapter attempts to provide critical insights for relevant stakeholders—whether they be researchers, innovators, entrepreneurs, government officials, investors, or international organizations—in China’s development, innovation, and technology transfer. The chapter illustrates three aspects related to China’s innovation and technology transfer in comparison with other major players in the field. Then it further analyzes the drivers and challenges of China’s science-based innovation and university technology transfer for understanding the future of China’s innovation and technology transfer.

scholarly journals The depth range of the Earth'snatural pulse electromagneticfield (or ENPEMF)

2019 ◽  
Vol 27 (3) ◽  
pp. 466-477 ◽  
Author(s):  
E. D. Kuzmenko ◽  
S. M. Bahrii ◽  
U. O. Dzioba
Keyword(s):  
Electromagnetic Field ◽  
Pulse Electromagnetic Field ◽  
Depth Range ◽  
Advantages And Disadvantages ◽  
The Earth ◽  
Mechanical Deformations ◽  
Specific Electric Resistance ◽  
Conducting Research ◽  
The University ◽  
The Impact

On the basis of the analysis of the literature sources, we determined the possible range of using the method of the Earth`s natural pulse electromagnetic field. As a result of detailed analysis of domestic and foreign research, we demonstrated the relevance of conducting research focused on development of the Earth'snatural pulse electromagneticfield (or ENPEMF). Using the results of theoretical studies, the advantages and disadvantages of the ENPEMF method were determined. A complex of physical processes which preceded the development of the pulse electromagnetic field of the Earth was characterized, and the impact of mechanical deformations of rocks on the change in the condition of the electromagnetic field was experimentally proven. The main fundamentals on the determination of depth range of the ENPEMF method were examined and a new approach to interpretation of the data was suggested. We conducted an analysis of methods developed earlier of calculating geometric parameters of the sources which generate electromagnetic impulses. Their practicability at a certain stage of solving the data of geological tasks was experimentally tested. We determined the factors which affect the depth range of the ENPEMF method. A mathematical solution of the effectiveness of the ENPEMF method was suggested and determined the relations between the depth parameter of the study and the frequency of measuring and effective value of specific electric resistance. On the example of different objects, the effectiveness and correctness of the suggested method of determining the depth range parameter was proven. In particular, the theoretical results of the study were tested and confirmed on objects of different geological-morphological and engineering-technical aspects, i.e. Novo-Holyn mine in the Kalush-Holynske potash deposit and the multi-storey educational building of the University in Ivano-Frankivsk. The practicability of using the ENPEMF method in combination with other methods of electrometry for solving practical geological tasks was experimentally proven.

scholarly journals EXPLORING ALS AND DIM DATA FOR SEMANTIC SEGMENTATION USING CNNS

2018 ◽  
Vol XLII-1 ◽  
pp. 347-354 ◽  
Author(s):  
F. Politz ◽  
M. Sester
Keyword(s):  
Point Cloud ◽  
Laser Scanning ◽  
Semantic Segmentation ◽  
Point Clouds ◽  
Good Alternative ◽  
Aerial Images ◽  
Learning Approaches ◽  
Advantages And Disadvantages ◽  
Sensing Applications ◽  
High Level

<p><strong>Abstract.</strong> Over the past years, the algorithms for dense image matching (DIM) to obtain point clouds from aerial images improved significantly. Consequently, DIM point clouds are now a good alternative to the established Airborne Laser Scanning (ALS) point clouds for remote sensing applications. In order to derive high-level applications such as digital terrain models or city models, each point within a point cloud must be assigned a class label. Usually, ALS and DIM are labelled with different classifiers due to their varying characteristics. In this work, we explore both point cloud types in a fully convolutional encoder-decoder network, which learns to classify ALS as well as DIM point clouds. As input, we project the point clouds onto a 2D image raster plane and calculate the minimal, average and maximal height values for each raster cell. The network then differentiates between the classes ground, non-ground, building and no data. We test our network in six training setups using only one point cloud type, both point clouds as well as several transfer-learning approaches. We quantitatively and qualitatively compare all results and discuss the advantages and disadvantages of all setups. The best network achieves an overall accuracy of 96<span class="thinspace"></span>% in an ALS and 83<span class="thinspace"></span>% in a DIM test set.</p>

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