Non-invasive 3D data access for PLM work flows

Abstract Most current part libraries are created and deployed in specific usage environments or CAD platforms, which inevitably brings obstacles in the share and exchange for part information. To reduce repeated development and provide a uniform interface for designers in different sites, a 3D part library in cloud scheme is presented in this paper. Host programs with predetermined specification can access the part data through an adapter according to their customized requests with uniform interfaces, which constructs a ubiquitous service. To realize host independence, the part models are created in a native ACIS modeler, and then they are converted into 3D files in various formats for practical needs, finally these files are imported into CAD systems or other platforms in real designs. The whole framework can be divided into three components, namely, PLS(Part Library Service) provider, PLS adapters and hosts. PLS provider is the kernel of 3D data access service in cloud scheme, while PLS adapters serve as the bridges that connect PLS provider and hosts, and the PLS can be grafted on various applications including current mainstream CAD systems as a plug-in module or run on the websites or even mobile terminals. The PLS provider is deployed and maintained on cloud and users can acquire remote part information within a local ongoing project. In the detailed construction of this part library, diversiform knowledge for part parameters and structures is implanted to define the geometry and rule constraints in the 3D modeling, with which the backstage has the ability of conveniently editing the information in the part library for better upgrade and contrapuntally services. The concept has been implemented within a PaaS framework to provide the ubiquitous 3D part data access, which has been successfully applied in a large number of manufacturing enterprises, and accumulates considerable practical cases.

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Creación de implantes 3D en procesos de conservación y restauración de vidrio arqueológico

Virtual Archaeology Review ◽

10.4995/var.2017.5946 ◽

2017 ◽

Vol 8 (16) ◽

pp. 103 ◽

Cited By ~ 2

Author(s):

Carmen Díaz-Marín ◽

Elvira Aura-Castro

Keyword(s):

3D Model ◽

Three Dimensional ◽

Acrylonitrile Butadiene Styrene ◽

Virtual Model ◽

Restricted Area ◽

Non Invasive ◽

3D Data ◽

Invasive Method ◽

Glass Bowl ◽

Butadiene Styrene

This article describes the restoration of a glass bowl from the 16th-17thcentury by creating its three-dimensional (3D)model. The final purpose is to work with this model in order to avoid damaging situations that are associated with the manipulation of fragile objects. The gap areas, those corresponding to the missing fragments not found in the excavation, were carried out by constructing digital implants. A restricted area of the 3D model has been duplicated in order to accommodate it to confined intervals of the gap. The final implants were printed with acrylonitrile butadiene styrene (ABS) filament. These implants replace the lost areas and give stability back to the item by recovering the original morphology. The result can be compared with the outcome obtained by a traditional process, but differs due to the fact that requires minimum manipulation of the item, so it can contribute to preserve and safeguard the restored object. This is a non-invasive method which is offered as an alternative treatment, where the archaeological object is replaced by its virtual model in the steps of the process after 3D data acquisition. Significant differences have not been found in the 3D printing results obtained with the two types of filaments tested (white and clear).

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Contrast-enhanced Multislice Computed Tomography of the Heart

European Cardiology Review ◽

10.15420/ecr.2009.5.1.8 ◽

2009 ◽

Vol 5 (1) ◽

pp. 8

Author(s):

Lukas Lehmkuhl ◽

Matthias Grothoff ◽

Stefan Nitzsche ◽

Borek Foldyna ◽

Holger Thiele ◽

...

Keyword(s):

Computed Tomography ◽

Coronary Angiography ◽

Heart Valves ◽

Multislice Computed Tomography ◽

Pulmonary Veins ◽

Ct Coronary Angiography ◽

High Temporal Resolution ◽

Data Set ◽

Non Invasive ◽

3D Data

Since the introduction of multislice computed tomography (MSCT) in 1998, non-invasive cardiac imaging has developed rapidly to become a robust method for morphological and functional imaging of the heart. The high temporal resolution and sub-millimetre spatial resolution of modern scanners result in an excellent morphological depiction of coronary arteries and bypass grafts. Recent studies of CT coronary angiography describe a sensitivity of up to 98% and a specificity of up to 91% over all coronary segments. Due to a high negative predictive value of 98–100%, CT coronary angiography is particularly suitable for non-invasive exclusion of coronary heart disease (CHD). Contrastenhanced CT of the heart also allows the assessment of the myocardium, heart valves and pulmonary veins, which can be simultaneously reconstructed from a 3D data set. This article describes the potential of cardiac diagnostics using MSCT, taking into account aspects of dosing and valid guidelines.

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Discovering hidden architectures of ancient time: 3d data survey to reveal the myth of mithra in Santa Maria Capua Vetere

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ◽

10.5194/isprsarchives-xl-5-121-2014 ◽

2014 ◽

Vol XL-5 ◽

pp. 121-128

Author(s):

M. Campi ◽

R. Catuogno ◽

A. di Luggo ◽

D. Iovane ◽

D. Palomba

Keyword(s):

Three Dimensional ◽

Advanced Technology ◽

Invasive Approach ◽

Non Invasive ◽

3D Data ◽

Data Survey ◽

Integrated Methods ◽

New Generation ◽

Representation Techniques ◽

Santa Maria

The research illustrated in this paper is part of a wider testing ground, aimed at identifying and developing processes of le arning and development taking place in archaeological contexts. These sites are investigated through the use of advanced technology, based on integrated methods of survey of new generation. The aim is to identify alternative languages of representation, able to read and to represent effectively the analyzed object and to propose alternative enjoyment systems. The case study is the Mithraeum in Santa Maria Capua Vetere, for which were carried out surveys with non-contact techniques, based on the use of instrumentations, for the acquisition of colorimetric and metric informations, that exploit a non-invasive approach. Data coming from laser scanner's sensors, combined with GPS receivers, are processed to define a three-dimensional centimetric space, in a single reference system of individual scans. Purpose of this research is to identify representation techniques able to communicate the sense of the multiple interrelations and of interferences among parties, providing the subsequent insertion of data into a wider project of cataloging, fruition and valuation of cultural heritage. The chance to diffuse Digital surveys is now a possible and implementable reality. The purpose is to spread awareness of World Heritage, in a participatory manner and based on the spiri t of knowledge, conveying all the strength of cultural content that heritage has.

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Semantic Enrichment of 3D Models Based on Ontology Integration

Lecture Notes in Mechanical Engineering - Advances on Mechanics, Design Engineering and Manufacturing III ◽

10.1007/978-3-030-70566-4_54 ◽

2021 ◽

pp. 341-346

Author(s):

Stéphane Nzetchou ◽

Alexandre Durupt ◽

Benoit Eynard ◽

Sébastien Remy

Keyword(s):

3D Model ◽

New Technologies ◽

Data Access ◽

3D Models ◽

Ontology Integration ◽

Semantic Enrichment ◽

3D Data ◽

File Formats ◽

Hidden Knowledge

AbstractThe rise of new technologies has led to a growth in the number of 3D models. They can come from various source, hence they are heterogeneous and complex. The level of 3D data access is often a function of the user’s expertise since the 3D data are often registered to different file formats. Some file formats do not show the data tree, as IGES. For using information inside a 3D model, that does not show a data tree, each company adopts his own system that will allow him to access easily to 3D model in order to exploit the hidden knowledge within the models. In this article, we are going to speak about technologies that helps user to exploit and knowledge coming from different file formats. In addition, we are going to present a system named VAQUERO that uses ontology to access, store and share knowledge coming from 3D models.

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A new megaspilid wasp from Eocene Baltic amber (Hymenoptera: Ceraphronoidea), with notes on two non-ceraphronoid families: Radiophronidae and Stigmaphronidae

PeerJ ◽

10.7717/peerj.5174 ◽

2018 ◽

Vol 6 ◽

pp. e5174 ◽

Cited By ~ 3

Author(s):

István Mikó ◽

Thomas van de Kamp ◽

Carolyn Trietsch ◽

Jonah M. Ulmer ◽

Marcus Zuber ◽

...

Keyword(s):

New Species ◽

Fossil Record ◽

Morphological Traits ◽

Baltic Amber ◽

Invasive Technique ◽

Intermediate Form ◽

Micro Ct ◽

Non Invasive ◽

Incertae Sedis ◽

3D Data

Ceraphronoids are some of the most commonly collected hymenopterans, yet they remain rare in the fossil record. Conostigmus talamasi Mikó and Trietsch, sp. nov. from Baltic amber represents an intermediate form between the type genus, Megaspilus, and one of the most species-rich megaspilid genera, Conostigmus. We describe the new species using 3D data collected with synchrotron-based micro-CT equipment. This non-invasive technique allows for quick data collection in unusually high resolution, revealing morphological traits that are otherwise obscured by the amber. In describing this new species, we revise the diagnostic characters for Ceraphronoidea and discuss possible reasons why minute wasps with a pterostigma are often misidentified as ceraphronoids. Based on the lack of ceraphronoid characteristics, we remove Dendrocerus dubitatus Brues, 1937, Stigmaphronidae, and Radiophronidae from Ceraphronoidea and consider them as incertae sedis. We also provide some guidance for their future classification.

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X-ray microtomography

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100107058 ◽

1988 ◽

Vol 46 ◽

pp. 998-999

Author(s):

H.W. Deckman ◽

B.F. Flannery ◽

J.H. Dunsmuir ◽

K.D' Amico

Keyword(s):

Computed Tomography ◽

Internal Structure ◽

Imaging Technique ◽

Three Dimensional ◽

Tissue Structure ◽

Individual Element ◽

X Ray ◽

Non Invasive ◽

Panoramic Imaging ◽

Three Dimensional Images

We have developed a new X-ray microscope which produces complete three dimensional images of samples. The microscope operates by performing X-ray tomography with unprecedented resolution. Tomography is a non-invasive imaging technique that creates maps of the internal structure of samples from measurement of the attenuation of penetrating radiation. As conventionally practiced in medical Computed Tomography (CT), radiologists produce maps of bone and tissue structure in several planar sections that reveal features with 1mm resolution and 1% contrast. Microtomography extends the capability of CT in several ways. First, the resolution which approaches one micron, is one thousand times higher than that of the medical CT. Second, our approach acquires and analyses the data in a panoramic imaging format that directly produces three-dimensional maps in a series of contiguous stacked planes. Typical maps available today consist of three hundred planar sections each containing 512x512 pixels. Finally, and perhaps of most import scientifically, microtomography using a synchrotron X-ray source, allows us to generate maps of individual element.

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Direct phase determination in electron crystallography: small organic molecules

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100130468 ◽

1992 ◽

Vol 50 (2) ◽

pp. 1166-1167

Author(s):

Douglas L. Dorset

Keyword(s):

Organic Molecules ◽

Data Sets ◽

Temperature Structure ◽

3D Analysis ◽

Intensity Data ◽

Electron Crystallography ◽

Phase Determination ◽

Measured Intensity ◽

3D Data

The quantitative use of electron diffraction intensity data for the determination of crystal structures represents the pioneering achievement in the electron crystallography of organic molecules, an effort largely begun by B. K. Vainshtein and his co-workers. However, despite numerous representative structure analyses yielding results consistent with X-ray determination, this entire effort was viewed with considerable mistrust by many crystallographers. This was no doubt due to the rather high crystallographic R-factors reported for some structures and, more importantly, the failure to convince many skeptics that the measured intensity data were adequate for ab initio structure determinations.We have recently demonstrated the utility of these data sets for structure analyses by direct phase determination based on the probabilistic estimate of three- and four-phase structure invariant sums. Examples include the structure of diketopiperazine using Vainshtein's 3D data, a similar 3D analysis of the room temperature structure of thiourea, and a zonal determination of the urea structure, the latter also based on data collected by the Moscow group.

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