GPU UTILIZATION IN GEOPROCESSING BIG GEODATA: A REVIEW

The expansion of data collection from remote sensing and other geographic data sources, as well as from other technology such as cloud, sensors, mobile, and social media, have made mapping and analysis more complex. Some geospatial applications continue to rely on conventional geospatial processing, where limitation on computation capabilities often lacking to attain significant data interpretation. In recent years, GPU processing has improved far more GIS applications than using CPU alone. As a result, numerous researchers have begun utilising GPUs for scientific, geometric, and database computations in addition to graphics hardware use. This paper summarizes parallel processing concept and architecture, the development of GPU geoprocessing for big geodata ranging from remote sensing and 3D modelling to smart cities studies. This paper also addresses the GPU future trends advancement opportunities with other technologies, machine learning, deep learning, and cloud-based computing.

3D Modelling of Hydric Transfers in Spruce Wood with Consideration of Sorption Hysteresis

Buildings are responsible for a large portion of the total energy consumption, and have a heavy environmental impact. Wood is one of the most used bio-based building materials, as it helps reducing the environmental footprint of the construction sector. Spruce wood is widely available in France and therefore massively used in buildings. It has interesting thermal and acoustic insulation performances and a good hydric regulation property. Spruce wood microstructure is highly heterogeneous and multiphasic, which makes it harder to apprehend. On the other hand, sorption hysteresis phenomenon is responsible for the moisture accumulation in porous building materials. It is often neglected in hygrothermal transfers modelling, which leads to incorrect water content values. The aim of this work is to investigate the influence of the sorption hysteresis phenomenon on the hydric transfers of spruce wood. The heterogeneity of the microstructure is also considered through 3D tomographic reconstructions included in the modelling.

3D MODELING AND VISUALIZATION OF ARCHITECTURE AND LANDSCAPE

The study presents the results of architectural and vegetation survey missions in the UNESCO site of Quinta da Regaleira in the city of Sintra, Portugal. The different types of connecting elements of the epigean and hypogean architectures in the Park are analysed through the disciplinary tools of architectural design. Surveys and models of some of the connecting elements are proposed for an understanding of the site and its subsequent protection and valorisation through digital documentation. Of great interest is the architectural and social relationship that the site establishes with the city of Sintra.The survey of epigean architecture considered the following: the Casa da Renasceça, the Capela, the Cocheiras, the Estufa, the Oficina das Artes, the Loggia dos Pisoes, the Casa dos Ibis, the Torre da Regaleira the Terraço dos Mundos Celestes and the Fonte da Abundância.The survey of underground architecture considered the following architectures: the Gruta do Labirinto, the Gruta da Leda, the Lago da Cascata, the Gruta do Aquario, the Gruta do Oriente, the Portal dos Guardiães, the Poço Imperfeito and the Poço Iniziático.The work constitutes a complete and accurate analysis, represented through technical drawings, in different scales, digital point clouds and 3D modelling for the visualisation of the architecture in the Quinta da Regaleira in Sintra.

Case Study: 3D Modelling and Printing of a Plastic Respirator in Laboratory Conditions

The importance of 3D printing is primarily that it enables customized production and, through Industry 4.0 technology, enables decentralized production. The article deals with the issue of 3D modelling and 3D printing of plastic respirators in the laboratory conditions of the authors’ workplace. In the above case study, the process of creating 3D models of individual parts of a plastic respirator and the production of a given model using a 3D printer is processed. The article also outlines the trends in 3D printing in connection with Blockchain and their importance on the Supply Chain.

AN ALTERNATIVE 3D ADDRESS VISUALIZATION METHOD FOR BUILDINGS AND BUILDING INDEPENDENT SECTIONS WITH GIS-BASED 3D MODELLING APPROACH

Most commonly used detail type in 3D city modelling is building layer. One of the most important distinguishing point of buildings is independent sections. When the independent sections are examined in the context of Urban Information System (UIS), they have a multi-layered structure with their own characteristics. In address management processes, definition of the area belonging to a person, family or organization is realized through independent sections of buildings. In this study, it is aimed to model one the most important components of city objects such as building independent sections and road networks with GIS-based 3D modelling techniques. According to the results obtained from literature studies, answers were researched to the questions of what should be workflow of producing 3D models in the system and what should be in ideal 3D GIS database. Buildings and building independent sections were geocoded to provide some additional innovations to address mapping methods. Procedural modelling method was preferred as a GIS-based 3D modelling technique. Created models enable both the visualization of address data and their transfer to the 3D environment, as well as navigation. It provides some practical information. The designed system has been tested practically in Trabzon city.

Design of “industrial” textile ornament based on the ideas of russian avant-garde

The article presents the concept of industrial ornament, gives stylistic features. The main trends in the art of post-revolutionary Russia, which were the ideological and methodological basis for the formation of industrial ornament, are considered. The main features that should be reflected in the construction of an industrial ornament are identified: the motif of an ornament based on geometry, industrial objects, sports subjects, objects from a computer gaming environment; a three-dimensional spatial image of the motif of an ornament in three dimensions; a colouristic solution of an ornamental composition. The classification of compositional drawings for the construction of a rapport grid of avant-garde fabrics, as a basis for the con-struction of an industrial ornament, is given. In the course of the study, a method for constructing a textile industrial ornament was developed. Recommendations for the development of an ornament are presented Adobe Photoshop CC program with elements of 3D modelling. The author’s ornamental drawings have been developed according to the given recommendations.

Predictive 3D modelling of erosion and deposition in ITER with ERO2.0: from beryllium main wall, tungsten divertor to full-tungsten device

Erosion and deposition is modelled with ERO2.0 for a hypothetical full-tungsten ITER for an ELM-free H-Mode baseline deuterium discharge. A parameter study considering seeding impurities (Ne, Ar, Kr, Xe) at constant percentages (0.05% to 1.0%) of the deuterium ion flux is done while neglecting their radiation cooling and core plasma compatibility. With pure deuterium plasma, tungsten main wall erosion is only due to charge exchange deuterium atoms and self-sputtering and there is only minor tungsten divertor sputtering. With a beryllium main wall, beryllium erosion is due to deuterium ions, charge exchange deuterium neutrals and self-sputtering. For this case, tungsten in the divertor is eroded by beryllium ions and self-sputtering. The simulations for full-tungsten device including seeded impurities leads to significant tungsten erosion in the divertor. In general, tungsten erosion, self-sputtering and deposition increase by factors larger than 50 at the main wall and 5000 in the divertor compared to pure deuterium plasma

Virtual Reality Implementation for University Presentation

The purpose of this study is to apply virtual reality technology for university presentation, so that evaluate if it is useful and usable. Due to the pandemic situation, the topic is also relevant to the current situation as many universities have shifted to online classes. With 3D modelling and coding, a university presentation application (only for computer engineering department) with virtual reality base has been developed that will allow the user to navigate around the school building and its surroundings. Because the developed application uses a new technology, it is designed to be convenient and simple considering that it can be difficult to use. Application allows movement in this virtual world according to constraints, as well as providing sound warnings when necessary. The application tested with a helmeted display, represented by Google Cardboard, with two lenses in it and a groove for the phone. The limited experiments by different users showed that the application was impressive, although it was not easy to use devices efficiently for an unexperienced user. On the other hand, with emerging technologies, it is possible develop such applications as web application using Unity WebVR Assests which will make it easy of use.