scholarly journals Numerical simulation and calibration of a single seam WAAM process with a commercial and an open source software

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Alexander Bauer ◽  
◽  
Ronny Scharf ◽  
André Hälsig ◽  
Birgit Awiszus ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Open Source ◽  
Open Source Software ◽  
Base Plate ◽  
Measurement Equipment ◽  
Welding Robot ◽  
Welding Wire ◽  
High Quality ◽  
Good Accordance ◽  
Temperature Development

This paper is dealing with the comparison of the FEM result quality between a commercial tool and an open source software with regards to the numerical simulation of a single seam WAAM process. For this purpose, an experimental WAAM process was conducted by a welding robot on a 1.4404 (316L) base plate with a 1.4404 (316L) welding wire, connected with the associated measurement equipment. Furthermore, the equivalent setup was transferred in the FEM tools Simufact Welding and Elmer FEM, using the same parameters for both simulations. The calculations show, that both programs are able to generate high quality results with a good accordance to the temperature development within the experimental processes. In summary it can be said, that both programs offer advantages and the decision what tool has to be used depends on the requirements and the possibilities of the user.

scholarly journals ggVennDiagram: An Intuitive, Easy-to-Use, and Highly Customizable R Package to Generate Venn Diagram

2021 ◽  
Vol 12 ◽  
Author(s):  
Chun-Hui Gao ◽  
Guangchuang Yu ◽  
Peng Cai
Keyword(s):  
Open Source ◽  
Open Source Software ◽  
Source Code ◽  
R Package ◽  
Venn Diagram ◽  
Free Access ◽  
High Quality ◽  
Venn Diagrams ◽  
Label Edge ◽  
The Cost

Venn diagrams are widely used diagrams to show the set relationships in biomedical studies. In this study, we developed ggVennDiagram, an R package that could automatically generate high-quality Venn diagrams with two to seven sets. The ggVennDiagram is built based on ggplot2, and it integrates the advantages of existing packages, such as venn, RVenn, VennDiagram, and sf. Satisfactory results can be obtained with minimal configurations. Furthermore, we designed comprehensive objects to store the entire data of the Venn diagram, which allowed free access to both intersection values and Venn plot sub-elements, such as set label/edge and region label/filling. Therefore, high customization of every Venn plot sub-element can be fulfilled without increasing the cost of learning when the user is familiar with ggplot2 methods. To date, ggVennDiagram has been cited in more than 10 publications, and its source code repository has been starred by more than 140 GitHub users, suggesting a great potential in applications. The package is an open-source software released under the GPL-3 license, and it is freely available through CRAN (https://cran.r-project.org/package=ggVennDiagram).

scholarly journals IGSTK: Building High Quality Roads with Open Source Software

2008 ◽  
Author(s):  
Luis Ibanez ◽  
Andinet Enquobahrie ◽  
Matt Turek ◽  
Julien Jomier ◽  
Rick Avila ◽  
...  
Keyword(s):  
Open Source ◽  
Open Source Software ◽  
Position Statement ◽  
Image Guided Surgery ◽  
Software Project ◽  
High Quality ◽  
Software Applications ◽  
Guided Surgery ◽  
Image Guided ◽  
Visualization Toolkit

This paper is a position statement on the benefits that an Open Source toolkit can bring to the field of image guided surgery. The particular example discussed here is the IGSTK toolkit. IGSTK is an open source software project designed for supporting the development of image guided surgery software applications. It provides functionalities for interfacing with optical and electromagnetic trackers, reading and visualizing DICOM datasets, as well as loading and displaying geometrical models resulting from image segmentation. These functionalities are enveloped by a simplified API implemented in a layer designed with emphasis on patient safety. The Toolkit is designed to ease the development of IGS applications, providing the basic functionalities related to the management of basic components. IGSTK is based on the Insight Toolkit (ITK) and the Visualization Toolkit (VTK), and can be combined with GUI toolkits such as FLTK and Qt. The IGSTK toolkit is distributed under a BSD license. Enter the names of any sponsors and/or funding codes in the box below.

Replacing Proprietary Software with Open Source Software

2014 ◽  
pp. 46-58
Author(s):  
Albert Akyeampong
Keyword(s):  
Open Source ◽  
Open Source Software ◽  
High Quality ◽  
Industrial Environment ◽  
Proprietary Software ◽  
Software Packages ◽  
Share Information

Most companies face high expenditures and numerous challenges in today’s competitive industrial environment where cost of technology can be an extra burden. To address these challenges, businesses can use Open Source Software (OSS). Even though OSS provides many benefits, including high-quality software and substantial profit (Sohn & Mok, 2008), OSS also has a number of disadvantages. In several countries, governments have begun to recognize the importance of OSS and have started to adopt explicit policies on OSS (Cook & Horobin, 2006). Open Source Software holds several compelling benefits for businesses. Information on wide-ranging use and examples of OSS in organizations are scattered and sometimes skewed to a few OSS. The chapter identifies different OSS that are currently used or have the potential to substitute other proprietary software packages in business; how organizations share information and how OSS is used globally by organizations and governments and their implications thereof is reviewed.

A Quantitative Study of the Adoption of Design Patterns by Open Source Software Developers

2008 ◽  
pp. 560-577
Author(s):  
Michael Hahsler
Keyword(s):  
Software Engineering ◽  
Open Source ◽  
Open Source Software ◽  
Design Patterns ◽  
Development Process ◽  
Research Question ◽  
Engineering Practice ◽  
Software Projects ◽  
High Quality ◽  
Engineering Practices

Several successful projects (Linux, Free-BSD, BIND, Apache, etc.) showed that the collaborative and self-organizing process of developing open source software produces reliable, high quality software. Without doubt, the open source software development process differs in many ways from the traditional development process in a commercial environment. An interesting research question is how these differences influence the adoption of traditional software engineering practices. In this chapter we investigate how design patterns, a widely accepted software engineering practice, are adopted by open source developers for documenting changes. We analyze the development process of almost 1,000 open source software projects using version control information and explore differences in pattern adoption using characteristics of projects and developers. By analyzing these differences, we provide evidence that design patterns are an important practice in open source projects and that there exist significant differences between developers who use design patterns and who do not.

scholarly journals Numerical Simulation of River Inflows in Rijeka Bay Coastal Area

2020 ◽  
Vol 3 (3) ◽  
pp. 117-124
Author(s):  
Luka Grbčić ◽  
Lado Kranjčević ◽  
Ivan Filiplić ◽  
Kristijan Mavrić
Keyword(s):  
Water Pollution ◽  
Numerical Simulation ◽  
Open Source ◽  
Water Flow ◽  
Open Source Software ◽  
Coastal Area ◽  
Flow Simulation ◽  
Numerical Domain ◽  
Made In

In this paper, a model of water flow in the Porto Baroš has been developed, which is the part of the Rijeka coastal area, for the purpose of its renovation and conversion. For numerical simulation purposes, the depth of the seabed of Port was previously performed, based on which the geometry and numerical domain of Port were made. By conducting the flow simulation, the analysis was carried out, after which the analyses of the conceptual solutions with the introduction of the pipe discharge were performed with the aim of reducing the water pollution of the Porto Baroš area. Port geometry will be made in commercial SMS software and numerical domains and simulations in OpenFOAM open-source software.

scholarly journals SemiBin: Incorporating information from reference genomes with semi-supervised deep learning leads to better metagenomic assembled genomes (MAGs)

2021 ◽  
Author(s):  
Shaojun Pan ◽  
Chengkai Zhu ◽  
Xing-Ming Zhao ◽  
Luis Pedro Coelho
Keyword(s):  
Neural Networks ◽  
Open Source ◽  
Open Source Software ◽  
De Novo ◽  
State Of The Art ◽  
Taxonomic Diversity ◽  
Reference Dataset ◽  
Human Gut ◽  
High Quality ◽  
Reference Genomes

ABSTRACTMetagenomic binning is the step in building metagenome-assembled genomes (MAGs) when sequences predicted to originate from the same genome are automatically grouped together. The most widely-used methods for binning are reference-independent, operating de novo and allow the recovery of genomes from previously unsampled clades. However, they do not leverage the knowledge in existing databases. Here, we propose SemiBin, an open source tool that uses neural networks to implement a semi-supervised approach, i.e. SemiBin exploits the information in reference genomes, while retaining the capability of binning genomes that are outside the reference dataset. SemiBin outperforms existing state-of-the-art binning methods in simulated and real microbiome datasets across three different environments (human gut, dog gut, and marine microbiomes). SemiBin returns more high-quality bins with larger taxonomic diversity, including more distinct genera and species. SemiBin is available as open source software at https://github.com/BigDataBiology/SemiBin/.

Open Source Software Use in Local Governments

2009 ◽  
pp. 516-534
Author(s):  
Sean M. Bossinger
Keyword(s):  
Operating System ◽  
Open Source ◽  
Operating Systems ◽  
Open Source Software ◽  
Local Governments ◽  
Large City ◽  
City Government ◽  
High Quality ◽  
Government Services ◽  
Small Municipality

Free, libre, or open source software (FLOSS) offers the promise of cost-free, modifiable, high-quality software, for a multitude of tasks (e.g. desktop operating systems, office suite applications, graphics manipulation packages, etc.). Given that this software is free in terms of cost and ability to modify, we should see its widespread use throughout public administrations whose limited budgets generally give rise to the need to find ways to cut costs wherever possible, while simultaneously providing ever expanding ranges of services to their constituencies. However, we find open source software’s use at the desktop and application level rather sparse. We look at 3 specific cases of open source software use: one for provision of local e-government services, a case where a small municipality has applied open source software within a desktop environment, and a case where a large city government has embarked on the wholesale replacement of the operating system and office application suite of an entire city’s implementation of desktop workstations.

A Quantitative Study of the Adoption of Design Patterns by Open Source Software Developers

2005 ◽  
pp. 103-124 ◽  
Author(s):  
Michael Hahsler
Keyword(s):  
Software Engineering ◽  
Open Source ◽  
Open Source Software ◽  
Design Patterns ◽  
Development Process ◽  
Research Question ◽  
Engineering Practice ◽  
Software Projects ◽  
High Quality ◽  
Engineering Practices

Several successful projects (Linux, Free-BSD, BIND, Apache, etc.) showed that the collaborative and self-organizing process of developing open source software produces reliable, high quality software. Without doubt, the open source software development process differs in many ways from the traditional development process in a commercial environment. An interesting research question is how these differences influence the adoption of traditional software engineering practices. In this chapter we investigate how design patterns, a widely accepted software engineering practice, are adopted by open source developers for documenting changes. We analyze the development process of almost 1,000 open source software projects using version control information and explore differences in pattern adoption using characteristics of projects and developers. By analyzing these differences, we provide evidence that design patterns are an important practice in open source projects and that there exist significant differences between developers who use design patterns and who do not.

scholarly journals Open Source Software to Visualize Complex Data on Remote CEA's Supercomputing Facilities

2014 ◽  
Author(s):  
Fabien Vivodtzev ◽  
Thierry Carrard
Keyword(s):  
Numerical Simulation ◽  
Open Source ◽  
High Performance Computing ◽  
Open Source Software ◽  
High Performance ◽  
End Users ◽  
Dynamics Simulation ◽  
Complex Data ◽  
Simulation Code ◽  
Performance Computing

In order to guaranty performances of complex systems using numerical simulation, CEA is performing advanced data analysis and scientific visualization with open source software using High Performance Computing (HPC) capability. The diversity of the physics to study produces results of growing complexity in terms of large-scale, high dimensional and multivariate data. Moreover, the HPC approach introduces another layer of complexity by allowing computation amongst thousands of remote cores accessed from sites located hundreds of kilometers away from the computing facility. This paper presents how CEA deploys and contributes to open source software to enable production class visualization tools in a high performance computing context. Among several open source projects used at CEA, this presentation will focus on Visit, VTK and Paraview. In the first part we will address specific issues encountered when deploying VisIt and Paraview in a multi-site supercomputing facility for end-users. Several examples will be given on how such tools can be adapted to take advantage of a parallel setting to explore large multi-block dataset or perform remote visualization on material interface reconstructions of billions of cells. Then, the specific challenges faced to deliver Paraview’s Catalyst capabilities to end-users will be discussed. In the second part, we will describe how CEA contributes to open source visualization software and associated software development strategy by emphasizing on two recent development projects. The first is an integrated simulation workbench providing plugins for every step required to achieve numerical simulation independently on a local or a remote computer. Embedded in an Eclipse RCP environment, VTK views allow the users to perform data input using interaction or mesh preview before running the simulation code. Contributions to VTK have been made in order to smoothly integrate these technologies. The second details how recent developments at CEA have helped to visualize and to analyze results from ExaStamp, a parallel molecular dynamics simulation code dealing with molecular systems ranging from a few millions up to a billion atoms. These developments include a GPU intensive rendering method specialized for atoms and specific parallel algorithms to process molecular data sets.

Replacing Proprietary Software with Open Source Software

2015 ◽  
pp. 1356-1368
Author(s):  
Albert Akyeampong
Keyword(s):  
Open Source ◽  
Open Source Software ◽  
High Quality ◽  
Industrial Environment ◽  
Proprietary Software ◽  
Software Packages ◽  
Share Information

Most companies face high expenditures and numerous challenges in today's competitive industrial environment where cost of technology can be an extra burden. To address these challenges, businesses can use Open Source Software (OSS). Even though OSS provides many benefits, including high-quality software and substantial profit (Sohn & Mok, 2008), OSS also has a number of disadvantages. In several countries, governments have begun to recognize the importance of OSS and have started to adopt explicit policies on OSS (Cook & Horobin, 2006). Open Source Software holds several compelling benefits for businesses. Information on wide-ranging use and examples of OSS in organizations are scattered and sometimes skewed to a few OSS. The chapter identifies different OSS that are currently used or have the potential to substitute other proprietary software packages in business; how organizations share information and how OSS is used globally by organizations and governments and their implications thereof is reviewed.

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