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 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.

Rapid Control Prototyping Design of DSP-Based Motion Controller

2011 ◽  
Vol 383-390 ◽  
pp. 308-314
Author(s):  
Lin Li ◽  
Zhi Ming Peng ◽  
Bi Cong Zhang ◽  
Zhang Tie
Keyword(s):  
Code Generation ◽  
Automatic Code Generation ◽  
Motion Controller ◽  
Application System ◽  
Pid Algorithm ◽  
Development Platform ◽  
Development Cycle ◽  
Rapid Control ◽  
Rapid Control Prototyping ◽  
Automatic Code

This paper presents a Rapid Control Prototyping (RCP) development platform based on Matlab/Simulink, Real-Time Workshop and Embedded Target for C2000 and DSP development board. It also designs TMS320F2812 DSP-based motion controller under the proposed RCP. The controller using saturated integral PID algorithm produces PWM signal to control DC motor. Experimental results show that the designed controller can control motor accurately. Engineers can complete all design tasks such as modeling, automatic code generation, and download, running and parameters adjustment on this RCP platform when developing DSP application system. Thus the proposed RCP can shorten the DSP development cycle and improve the portability and modularity of program.

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.

Sprachgeschichte als Textsortengeschichte. Zur Linguistik der Beschwerde am Beispiel der "cahiers de doléances"

2019 ◽  
Author(s):  
Sandra Issel-Dombert
Keyword(s):  
Political Participation ◽  
Collective Memory ◽  
Social History ◽  
Actual State ◽  
Text Type ◽  
Grassroots Movements ◽  
Social Interests ◽  
History Of ◽  
The University ◽  
Language And Law

To this day, French politicians and grassroots movements refer to the cahiers de doléances of the Ancien Régime as a primordial democratic legitimation tool for self-expression, for the pooling of opinions and the negotiation of social interests. The precursor of the petition, it has entered collective memory as the "French recipe" of political participation from below. As a mouthpiece for democratic articulation, this text type not only documents the actual state of a society described by its authors, but also far-reaching visions of the future. It can thus be read equally as an indicator of the disposition prevalent in a society at a given time, but as a social history of France as well. Based on culture-oriented linguistics, this study traces the evolution of the cahiers de doléances from the beginning of their lore to its end. This study work was awarded the "Prix Germaine de Staël" as well as the advancement award "Language and Law" of the University of Regensburg.

scholarly journals THE STUDY OF ACTUAL STATE AND PREDICTION OF INDUSTRIAL SOLID WATSE-HAZARDOUS WASTE QUANTITY UNTIL 2020 IN HO CHI MINH CITY

2009 ◽  
Vol 12 (9) ◽  
pp. 88-97
Author(s):  
Tuan Ngoc Le
Keyword(s):  
Solid Waste ◽  
Hazardous Waste ◽  
Ho Chi Minh City ◽  
Actual State ◽  
Export Processing Zones ◽  
Industrial Solid Waste ◽  
Advantages And Disadvantages ◽  
Industrial Parks ◽  
Management Measures ◽  
Negative Impacts

In HCMC, there are 958 factories in 12 industrial parks – export processing zones (IP-EPZ) (2006), 1,011 large factories, 6,202 small and medium factories out of IP-EPZ with 24 various industries. More than 700 factories operate in field of buying and recycling solid waste. Besides, there are 21 licenced and series of unregistered factories operating in field of collecting, transporting, treating, and burning industrial solid waste - hazardous waste (ISW-HW). There is the survey deployed in 24 districts (HCMC). The scope of that inquiry is 278 factories in IP-EPZ, 96 large factories, 1,142 small and medium factories out of IP-EPZ. The quantity of industrial solid waste is 1,044 tons per day with 12 percent of hazardous waste. After analysing the advantages and disadvantages of 05 methods used for predicting the quantity of ISW-HW, according to the ability of collecting data related in HCMC, the research has compared and chosen the best method. The results are: 1,641 tons per day (2010); 3,196 tons per day (2015); 7,318 tons per day (2020). With more and more ISW-HW, doing overall researches in order to establish the effective ISW-HW management measures in HCMC, minimize the negative impacts to environment and public health.

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.

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