scholarly journals Situational Modeling Technology in Virtual Environment Systems

2021 ◽  
Vol 24 (5) ◽  
pp. 889-901
Author(s):  
Михаил Васильевич Михайлюк ◽  
Дмитрий Алексеевич Кононов ◽  
Дмитрий Михайлович Логинов
Keyword(s):  
Virtual Environment ◽  
Outer Space ◽  
Three Dimensional ◽  
Computer Screen ◽  
Modeling Technology ◽  
Virtual Control ◽  
Artificial Environment ◽  
Three Dimensional Models ◽  
Special Editor ◽  
Special Language

The technology of modelling various situations in virtual environment systems, which are computer three-dimensional models of a real or artificial environment, is discussed. The user can view these scenes directly on the computer screen, wall screen, in a stereo glasses, virtual reality glasses, etc. He can also move inside a virtual scene and interact with its objects. In turn, the environment can also change. This allows modelling of various situations (situation modelling) in the virtual environment system. With such modelling, some static or dynamic situation is set in the virtual environment system in which the operator must perform the tasks assigned to him. A mechanism for setting situations by changing a virtual three-dimensional scene using configuration files and virtual control panels is proposed. A special language has been developed for writing configuration files, and a special editor has been developed for creating virtual control panels. The approbation of the proposed methods is presented on the examples of two virtual scenes: a training ground for mobile robots and a jet backpack for the rescue of an astronaut in outer space.

Integration of GIS and BIM in Metro Construction

2014 ◽  
Vol 608-609 ◽  
pp. 698-702 ◽  
Author(s):  
Qian Kun Wang ◽  
Peng Li ◽  
Ya Ping Xiao ◽  
Zhi Gang Liu
Keyword(s):  
Information Systems ◽  
Geographic Information Systems ◽  
Building Information Modeling ◽  
Three Dimensional ◽  
Geographic Information ◽  
Information Modeling ◽  
Modeling Technology ◽  
Effective Combination ◽  
Building Information ◽  
Three Dimensional Models

With application and popularization of information modeling technology, both Geographic Information Systems (GIS) and Building Information Modeling (BIM) could represent three dimensional models in different fields. By introducing application features of GIS and BIM in Metro construction, this paper presents such a thought that effective combination of GIS and BIM may play a role at different stages in metro construction.

THE USE OF THREE-DIMENSIONAL MODELING AS A WAY OF INFORMATION AND TECHNICAL SUPPORT OF FORENSIC REGISTRATION

2018 ◽  
Author(s):  
Roman Demchyshak ◽  
Keyword(s):  
Physical Properties ◽  
3D Modeling ◽  
Three Dimensional ◽  
Technical Support ◽  
Modeling Technology ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
3D Scanners ◽  
Three Dimensional Models ◽  
Dimensional Object

The article is devoted to the issues of using three-dimensional modeling as a way of information and technical support of forensic registration. It is stated that none of the modern researches focuses on the use of three- dimensional modeling technology of information and technical support of forensic registration. An assessment of the technological capabilities of modern three-dimensional scanners (3D-scanners), which are used (or can be used) in the information and technical support of forensic registration. The technological possibilities of three-dimensional modeling are analyzed, in particular in the construction of three-dimensional models of the scene, the creation of virtual rooms for educational purposes, forensic examinations, etc. Emphasis is placed on the fact that in criminology, three-dimensional (3D) modeling is carried out according to the rules of solid modeling (in which the key is to reproduce the physical properties of three-dimensional modeling objects). It is the physical properties of forensic registration objects, as a rule, that are the key information, the fixation of which is carried out within the framework of forensic registration. It is determined that the prospects of using three-dimensional (3D) modeling during forensic registration are to ensure the possibility of creating objects of accounting using additive technologies (ie three-dimensional printing (3D- printing)). The position is expressed that the technologies of three-dimensional (3D) modeling can be applied, first of all, in: trasological accounting; ballistic accounting; cold steel accounting; registration of persons on the basis of appearance; accounting of materials, substances and products. Therefore, with 3D modeling, it is possible to reproduce a certain three-dimensional object if it has been properly scanned. The described technologies create opportunities not only to quickly create exact copies or duplicates of evidence or other objects that are placed in forensic accounting, and use them for other research or for use as objects of orientation during operational or investigative actions.

scholarly journals Digital Technologies and Communication: Prospects and Expectations

2015 ◽  
Vol 1 (1) ◽  
Author(s):  
Francesco Gabellone
Keyword(s):  
Virtual Reality ◽  
New Media ◽  
Virtual Environment ◽  
Mixed Reality ◽  
Three Dimensional ◽  
Virtual Archaeology ◽  
Elite Culture ◽  
Three Dimensional Models ◽  
Representation Scheme ◽  
Enhanced Reality

AbstractThe birth of virtual reality marked a new path forward and also gave a fresh view of reality, allowing alternative ‘readings’ of cultural heritage. This new way of representation and simulation was soon associated with the term virtual environment, used to indicate those interactive three-dimensional models that could be navigated and that simulated a place, building, or synthetic representation scheme in real time. A virtual environment is like a “microscope for the mind” that allows you to elaborate amplified projections of the material world, to “look beyond” simple appearances and to make logical connections between elements grouped together. In recent years, virtual environments have been greeted positively by the public and scholars, testified by the quantity of thematic conferences on the subject of Virtual Archaeology. Despite this, there are still many contradictions found in the varying terms and the diverse aims of the developing disciplines that gravitate around the field of virtual reality such as Cultural Virtual Environment, Virtual Restoration, Virtual Archaeology, Enhanced Reality, and Mixed Reality. The spread of new media has upset the traditional systems of communication such as books, television, radio and even the roles of some cultural stakeholder. With this in mind, the role of virtual heritage also consists in transmitting information using the language and cognitive metaphors used in video-games, considering these as cultural paradigms for a form of communication that is freed from the classic rules of elite culture. It is quite frequent to find projects of digital promotion for monuments that are characterised by difficulty of access, or for objects that have been taken from their original context. One solution to enhance the accessibility of those sites is certainly the use of some visual computing technologies which without presuming to be the ultimate answer to the problems posed, try to offer communications tools that permit an effective support to the visit.

scholarly journals Development of a Virtual Environment for Interactive Interrogation of Computational Mixing Data

2006 ◽  
Vol 129 (3) ◽  
pp. 361-367 ◽  
Author(s):  
Thomas J. Duncan ◽  
Judy M. Vance
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Spatial Scales ◽  
Three Dimensional ◽  
Product Development Process ◽  
Volume Data ◽  
Mixing Processes ◽  
Particle Tracing ◽  
Three Dimensional Models ◽  
Physical Phenomena

Virtual reality (VR) has the potential to enable visualization of complex physical phenomena in their natural spatial scales and significantly improve the product development process. Virtual environments provide a tool for users to interact with three-dimensional models using intuitive methods in their natural spatial scales. This paper presents the implementation details of a virtual environment combining surround-screen virtual reality technology and particle tracing of massless particles to explore the benefits these tools bring to engineers seeking to understand the complex fluid behavior present in mixing processes. The implementation of interaction methods, including volume data selection using a convex hull approach, cutting plane generation, and the integration of a tablet PC as a user interface, will be presented. Design and technical details involved with the interaction methods will be discussed along with the resulting interactive virtual environment.

Research of Substation Visualization Based on 3D Panoramic and Geometric Modeling Technology

2012 ◽  
Vol 588-589 ◽  
pp. 1242-1245 ◽  
Author(s):  
Chun Lin Zhao ◽  
Hao Yuan ◽  
Jian Gong Wang ◽  
Liang Wang
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Geometric Modeling ◽  
Three Dimensional ◽  
Modeling Language ◽  
Scene Graph ◽  
Modeling Technology ◽  
Virtual Reality Modeling Language ◽  
3D Virtual Environment ◽  
Monitoring Information

By combining three-dimensional panorama technology with geometric modeling technology, the models of the primary and secondary equipment of substations are built to get a three-dimensional (3D) virtual environment. This method makes it easy to view the equipments and improves the integration of substation monitoring information. This paper analyzes and discusses two kinds of solutions which are based on Virtual Reality Modeling Language (VRML) and Open Scene Graph (OSG) together with Qt as the main technologies.

scholarly journals Situational modeling in virtual environment systems

2021 ◽  
Author(s):  
Mikhail Vasilievich Mikhayliuk ◽  
Dmitry Alekseevich Kononov ◽  
Dmitry Mikhaylovich Loginov
Keyword(s):  
Virtual Environment ◽  
Three Dimensional ◽  
Virtual Control

The technology of modeling various situations in virtual environment systems is considered. We propose a mechanism for setting situations by changing a virtual three-dimensional scene using configuration files and virtual control panels.

scholarly journals Nanoantenna modelling for their further use as data transmitter-receiver devices on 3-d integral circuits

2020 ◽  
Vol 8 (6) ◽  
pp. 109-120
Author(s):  
D. A. Serov ◽  
K. V. Pershina ◽  
I. V. Burdina
Keyword(s):  
Integrated Circuits ◽  
Integrated Circuit ◽  
Data Transfer ◽  
Human Life ◽  
Three Dimensional ◽  
Optical Antennas ◽  
Full Potential ◽  
Modeling Technology ◽  
Three Dimensional Models ◽  
Communication Lines

This article describes the application of optical nanocomponents for their further use in computer and information systems. it was revealed It was found on the basis of the analysis that the improvement of existing nanocomponents will allow to realize their full potential, as well as to find the use of nanoantennas in the field of creating communication lines on device boards as devices for receiving and transmitting data. Nanoantennas are promising devices that are already successfully used in modern microscopy devices. However, recently, optical antennas have begun to be applied in devices used in other areas of human life. As a result, the use of this technology can lead to an increase in the speed and volume of data transfer between the components of the integrated circuit. This, in turn, will increase the quality and speed of calculations in complex equations. A modeling technology has been proposed, and calculations of the necessary geometric parameters have been made, which will be suitable for the goals set by this work. On the basis of the proposed technology, four models that meet the required parameters have been developed. Calculations of the created three-dimensional models of nanoantennas have been performed. As a result of the study, a model has been identified that has the most balanced parameters suitable for its further use as the main device for receiving and transmitting data on three-dimensional integrated circuits.

Plastic replicas as three-dimensional models of pulps

1975 ◽  
Vol 39 (8) ◽  
pp. 544-546
Author(s):  
HL Wakkerman ◽  
GS The ◽  
AJ Spanauf
Keyword(s):  
Three Dimensional ◽  
Dimensional Models ◽  
Three Dimensional Models

Evaluation of a collaborative movement task in a distributed three-dimensional virtual environment

2005 ◽  
Author(s):  
Julio C. Mateo ◽  
Joseph T. Manning ◽  
Jeffrey L. Cowgill ◽  
Thomas J. Moore ◽  
Robert H. Gilkey ◽  
...  
Keyword(s):  
Virtual Environment ◽  
Three Dimensional

Validation of a Belt Model for Prediction of Hub Forces from a Rolling Tire4

2009 ◽  
Vol 37 (2) ◽  
pp. 62-102 ◽  
Author(s):  
C. Lecomte ◽  
W. R. Graham ◽  
D. J. O’Boy
Keyword(s):  
Internal Pressure ◽  
Equations Of Motion ◽  
Three Dimensional ◽  
Prediction Method ◽  
Analytical Models ◽  
Beam Model ◽  
Impedance Boundary ◽  
Bending Waves ◽  
Tire Rotation ◽  
Three Dimensional Models

Abstract An integrated model is under development which will be able to predict the interior noise due to the vibrations of a rolling tire structurally transmitted to the hub of a vehicle. Here, the tire belt model used as part of this prediction method is first briefly presented and discussed, and it is then compared to other models available in the literature. This component will be linked to the tread blocks through normal and tangential forces and to the sidewalls through impedance boundary conditions. The tire belt is modeled as an orthotropic cylindrical ring of negligible thickness with rotational effects, internal pressure, and prestresses included. The associated equations of motion are derived by a variational approach and are investigated for both unforced and forced motions. The model supports extensional and bending waves, which are believed to be the important features to correctly predict the hub forces in the midfrequency (50–500 Hz) range of interest. The predicted waves and forced responses of a benchmark structure are compared to the predictions of several alternative analytical models: two three dimensional models that can support multiple isotropic layers, one of these models include curvature and the other one is flat; a one-dimensional beam model which does not consider axial variations; and several shell models. Finally, the effects of internal pressure, prestress, curvature, and tire rotation on free waves are discussed.

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