scholarly journals AUTOMATION OF THE PROCESS OF ENSURING THE CONFORMITY OF THE OBJECT TO THE “GREEN” CONSTRUCTION STANDARDS

2019 ◽  
Vol 46 (1) ◽  
pp. 132-141
Author(s):  
R. A. Zherugov ◽  
M. H. Kangezova ◽  
A. A. Lapidus
Keyword(s):  
Computer Aided Design ◽  
Software Package ◽  
Green Building ◽  
Environmental Certification ◽  
Software Complex ◽  
Green Construction ◽  
Software Product ◽  
Under Construction ◽  
Aided Design ◽  
The Impact

Objectives. Solving the main tasks of designing construction objects in accordance with environmental standards is impossible without computer-aided design and database management systems. The article discusses a part of the software package that will automate the process of ensuring compliance of the object with the standards of "green" construction.Method. The basis of the project development is the criteria of the system of voluntary environmental certification of real estate objects, approved by the order of the Ministry of Natural Resources of Russia, as well as the criteria of LEED standards. For data analysis, the software complex MapInfo was used.Result. The structure of the software product has been developed, which will answer the main questions arising in the design of any building, taking into account the standards of green building. For each category the underlying factors (input data) are the corresponding data for each criterion.Conclusion. The developed software package will provide an opportunity to minimize the impact of a construction object on the environment and increase the energy efficiency of the object under construction. Also, improve the quality of organizational and technological decisions of the construction process, reduce the impact of the construction project on the environment and effectively use resources. Full implementation of the algorithm will make it possible to reduce the time and cost of designing buildings and structures, increase the accuracy of drawing details and structural elements, improve the quality and technical and economic level of the design results, and minimize the costs of manual modeling and testing.

scholarly journals Strategy for the engineering integration of the ESS accelerator

2016 ◽  
Vol 44 ◽  
pp. 1660208
Author(s):  
Nikolaos Gazis ◽  
David McGinnis ◽  
Stephen Molloy ◽  
Eugene Tanke ◽  
Carl-Johan Hardh ◽  
...  
Keyword(s):  
Information Exchange ◽  
Computer Aided Design ◽  
Mechanical Design ◽  
Technical Information ◽  
Technical Requirements ◽  
Key Issues ◽  
Spallation Source ◽  
Engineering Integration ◽  
Under Construction ◽  
Aided Design

The European Spallation Source (ESS), currently under construction in Lund, Sweden, will be the world’s most powerful source of neutrons. The goal is to deliver neutrons to users in 2019 and reach full power sometime in the middle of the following decade. One of the key issues for ESS is to develop a strategy, along with the proper innovative tools, to efficiently communicate and smoothly collaborate between divisions and groups inside ESS and with its outside collaborators, so-called In-Kind Contributors (IKC). Technical requirements related to the scope to be delivered are among the most important technical information to be exchanged. This information exchange is facilitated by using a commercial requirements management database that is accessible through the web. The physics multidisciplinary needs are linked with the engineering integration through LinacLego, which is a tool that provides all updated lattice data for the accelerator. The lattice information is then gathered and utilized to control the physical positioning of the mechanical engineering components for the accelerator. The precision for this operation is provided by a dedicated mechanical design skeleton in a Computer Aided Design (CAD) environment. Finally, the realization of all these steps is supervised in detail and continuously evaluated. In this way the required ESS machine design can be delivered, both in terms of the engineering and the physics aspects.

Pathfinder Algorithm Modification for CPLD and FPGA Routing Stage

2021 ◽  
Vol 26 (5) ◽  
pp. 399-409
Author(s):  
M.A. Zapletina ◽  
◽  
S.V. Gavrilov ◽  
◽  
Keyword(s):  
Computer Aided Design ◽  
Digital Circuits ◽  
Routing Algorithm ◽  
Design Flow ◽  
Negative Effect ◽  
Industrial Projects ◽  
Placement And Routing ◽  
Aided Design ◽  
The Impact

One of the main advantages of FPGA and CPLD is the high development speed; therefore, the importance of effective computer-aided design tools for modern microcircuits of these classes cannot be overestimated. Placement and routing are the most time-consuming stages of FPGA/CPLD design flow. The quality of results of these stages is crucial to the final perfor-mance of custom digital circuits implemented on FPGA/CPLD. The paper discusses an approach to accelerating the routing stage within the layout synthesis flow for FPGA/CPLD by introducing a few algorithmic improvements to a routing procedure. The basic routing algorithm under study is a modified Pathfinder for a mixed routing resource graph. Pathfinder is a well-known negotiation-based routing algorithm that works on the principle of iteratively eliminating congestions of chip routing resources. For experiments, the sets of test digital circuits ISCAS'85, ISCAS'89, LGSynth'89 and several custom industrial projects were used. The impact of the proposed algorithmic improvements was analyzed using four FPGA/CPLD architectures. It has been established that due to the improvements of the algorithm proposed in the paper, the average reduction in routing time was from 1.3 to 2.6 times, depending on the FPGA/CPLD architecture, with no significant negative effect on the timing characteristics of the designed circuits.

scholarly journals Green Building in Russia as well as its problems and solutions

2021 ◽  
pp. 53-58
Author(s):  
Nikolai Tuzov
Keyword(s):  
Rapid Development ◽  
Green Building ◽  
Individual Development ◽  
Capital Investments ◽  
Green Construction ◽  
Problems And Solutions ◽  
History Of ◽  
The Moment ◽  
Under Construction ◽  
Ecological Construction

The article deals with the issues of environmental (“green”) construction in Russia in relation to the tasks of low-rise and individual development. The article describes the history of the formation of the ecological construction market in Russia and abroad, gives a general classification and the main directions of its development. The ad-vantages of green construction, the problems that hinder the rapid development of ecological construction and the stimulating factors of such development are described. The applicable standards of green construction are indicated, both established by the state in the form of normative legal acts, and voluntary, and the advantages of following environmental standards are shown. Practical examples of ecological construction and problems faced by developers in practice are given. The concepts of Passive House, energy-efficient house and non-volatile house are considered in detail, indicating the ways to use the elements of such concepts in the implementation of real construction at the moment, including some practical examples of technical and technological solutions, as well as ways to further improve them. Examples of low-rise buildings currently under construction using standards and principles of ecological construction are given. The Russian standards of green construction are considered in de-tail, with references to specific regulations and other sources regulating the issues of ecological construction, and the ways of their further development and improvement are indicated. A mathematical model of the order of construction of eco-mobility facilities is proposed, where the capital return indicator is selected as an important criterion, which is determined taking into account the different times of costs for the objects being introduced. Its maximization leads to the choice of such an option, which will be characterized by the largest intermediate volume of input objects, as well as the smallest amount of reduced capital investments, i.e. their more rational dynamics. Thus, this indicator characterizes the efficiency of using capital investments, as well as their return as a result of reducing construction in progress.

APPROACHES FOR THE DEVELOPMENT OF FOR AUTOMATED DESIGN AND SIMULATION OF ONBOARD NETWORKS

2021 ◽  
Vol 4 (30) ◽  
pp. 76-86
Author(s):  
V. L. Olenev ◽  
◽  
A. V. Shakhomirov ◽  
Keyword(s):  
Computer Aided Design ◽  
Aerospace Industry ◽  
Automated Design ◽  
Software Product ◽  
Computer Aided ◽  
Aided Design ◽  
New Generation ◽  
New Industry ◽  
Board Networks ◽  
Development Prospects

The article presents an analysis of the development prospects for the aerospace industry in relation to on-board systems and new-generation networks. It also presents the approaches for developing the SANDS software, intended for computer-aided design and simulation of on-board networks. Various approaches are described that will allow the existing software product to be refined and updated to meet new industry demands.

Effect of In-office Bleaching on Color, Translucency, and Whiteness Variations in CAD-CAM Monolithic Materials

2021 ◽  
Author(s):  
RG Fonseca ◽  
RC Peńa ◽  
R Simóes ◽  
AC Ramos ◽  
LN Dovigo
Keyword(s):  
Optical Properties ◽  
Computer Aided Design ◽  
Calculated Data ◽  
Color Difference ◽  
Deionized Water ◽  
Stain Removal ◽  
Computer Aided ◽  
Cad Cam ◽  
Aided Design ◽  
The Impact

SUMMARY Little is known about the impact of bleaching on the optical properties of computer-aided design and computer-aided manufactured (CAD-CAM) monolithic materials. The aim of the present study was to evaluate the effect of one session of in-office bleaching on stain removal, staining susceptibility, translucency, and whiteness variations of CADCAM monolithic materials. Disks were fabricated from Lava Ultimate (LU), Vita Enamic (VE), Vita Suprinity (VS), and IPS e.max CAD (IPS). A spectrophotometer was used to register Commission Internationale de l’Eclairage L*a*b* coordinates. For stain removal, 80 specimens from each material were assessed at baseline (R0) and after immersion in deionized water or coffee for 365 days followed or not by bleaching with 40% hydrogen peroxide (R1). For staining susceptibility, 80 specimens from each material were analyzed at baseline (R0’), and after having been bleached or not and immersed in deionized water or coffee (R1’). Both analyses were calculated as the color difference (ΔE00) between R1-R0 and R1’-R0’, respectively. Differences in translucency (ΔTP00) and whiteness (ΔWID) between R1-R0 and R1’-R0’ were also calculated. Data were analyzed by three-way ANOVA and the Games-Howell post hoc test (α=0.05). Clinical significance was based on 50%:50% perceptibility and acceptability thresholds for ΔE00, ΔTP00 and ΔWID, respectively. Surfaces were analyzed by scanning electron microscopy. Coffee increased ΔE00 in LU, VE, and VS, and decreased their translucency and whiteness, whereas the IPS had only its whiteness affected. Bleaching after immersion in coffee decreased ΔE00 in LU and VE, and increased translucency and whiteness of LU, VE, and VS. No effect was observed on IPS. Bleaching before immersion in coffee decreased translucency of LU, but within the acceptable interval, while VE exhibited lower ΔE00, and became more translucent and less dark. Both VS and IPS were not affected. One session of in-office bleaching benefited optical properties of the previously stained LU, VE, and VS, without increasing their susceptibility to staining or adversely providing clinically unacceptable variations in their translucency and whiteness. All variations exhibited by the IPS were below the perceptible threshold.

scholarly journals Application Solid Laser-Sintered or Machined Ti6Al4V Alloy in Manufacturing of Dental Implants and Dental Prosthetic Restorations According to Dentistry 4.0 Concept

Processes ◽  
2020 ◽  
Vol 8 (6) ◽  
pp. 664 ◽  
Author(s):  
Leszek A. Dobrzański ◽  
Lech B. Dobrzański ◽  
Anna Achtelik-Franczak ◽  
Joanna Dobrzańska
Keyword(s):  
Dental Implants ◽  
Computer Aided Design ◽  
Bending Strength ◽  
Ti6al4v Alloy ◽  
Cnc Machining ◽  
Live Cells ◽  
Computer Aided ◽  
Aided Design ◽  
The Impact

This paper presents a comparison of the impact of milling technology in the computer numerically controlled (CNC) machining centre and selective laser sintering (SLS) and on the structure and properties of solid Ti6Al4V alloy. It has been shown that even small changes in technological conditions in the SLS manufacturing variant significantly affect changes from two to nearly two and a half times in tensile and bending strengths. Both the tensile and bending strength obtained in the most favourable manufacturing variant by the SLS method is over 25% higher than in the case of cast materials subsequently processed by milling. Plug-and-play SLS conditions provide about 60% of the possibilities. Structural, tribological and electrochemical tests were carried out. In vitro biological tests using osteoblasts confirm the good tendency for the proliferation of live cells on the substrate manufactured under the most favourable SLS conditions. The use of SLS additive technology for the manufacturing of dental implants and abutments made of Ti6Al4V alloy in combination with the digitisation of dental diagnostics and computer-aided design and manufacture of computer-aided design/manufacturing (CAD/CAM) following the idea of Dentistry 4.0 is the best choice of technology for manufacturing of prosthetic and implant devices used in dentistry.

Organizational Effectiveness of Computer-Aided Design

1987 ◽  
Vol 31 (2) ◽  
pp. 214-217
Author(s):  
Douglas H. Harris ◽  
Steven M. Casey
Keyword(s):  
Organizational Effectiveness ◽  
Computer Aided Design ◽  
Working Environment ◽  
Specific System ◽  
Cad System ◽  
Organizational Issues ◽  
Computer Aided ◽  
Major Factors ◽  
Aided Design ◽  
The Impact

A methodology for measuring the organizational effectiveness of computer-aided design (CAD) was developed and applied. A total of 295 of the 500 most frequent users of CAD in a major aerospace company provided data for the study. User-CAD effectiveness was found to be influenced by 43 major factors and 145 specific system and organizational issues. The 43 factors were classified into the following categories: system functions, system hardware, working environment, system reliability and consistency, user access, user support and training, and system administration. Indexes of User-CAD Effectiveness (UE) and System Availability and Reliability (AR) were combined into an Index of CAD Organizational Effectiveness (OE). Through the application of these methods and indexes, CAD system and organizational deficiencies can be diagnosed, potential high-payoff improvements can be identified, and the impact of developmental efforts can be assessed.

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