Search results for "Mold"
showing 10 items of 118 documents
Automated Uncertainty Quantification Through Information Fusion in Manufacturing Processes
2017
International audience; Evaluation of key performance indicators (KPIs) such as energy consumption is essential for decision-making during the design and operation of smart manufacturing systems. The measurements of KPIs are strongly affected by several uncertainty sources such as input material uncertainty, the inherent variability in the manufacturing process, model uncertainty, and the uncertainty in the sensor measurements of operational data. A comprehensive understanding of the uncertainty sources and their effect on the KPIs is required to make the manufacturing processes more efficient. Towards this objective, this paper proposed an automated methodology to generate a hierarchical B…
Pasajes de París / 4: Sus usos culturales
2006
Dziļas un visaptverošas brīvās tirdzniecības nolīguma loma ārvalstu tiešo investīciju plūsmās no ES uz Gruziju un Moldovu
2018
Šajā maģistra darbā tiek izvērtētas un analizētas savstarpējās attiecības starp padziļinātajiem un visaptverošajiem brīvās tirdzniecības līgumiem (DCFTA), kas ir parakstīti starp ES-Gruziju un ES-Moldovu, kā arī apskatīti ārvalstu tiešie ieguldījumi (FDI) no Eiropas Savienības uz uzņēmējvalstīm Gruziju un Moldovu. Izmantojot parakstīto Asociāciju piekrišanas (Asssociation Agreement) materiālu kvalitatīvajā kontentanalīzē, tas paplašina ieskatu tirdzniecības līgumu attiecībās un FDI kustībā un apritē Austrumu partneru valstīs, t.i., Gruzijā un Moldovā, saistībā ar šo valstu tirdzniecības attiecībām ar Eiropas Savienību. FDI nozīmīguma loma ekonomikas attīstībā pasaulē ir ievērojumi augusi. N…
The continuous cooling transformation (CCT) as a flexible tool to investigate polymer crystallization under processing conditions
2009
An experimental route for investigating polymer crystallization over a wide range of cooling rates (from 0.01 to 1000◦C/s) and pressures (from 0.1 to 40 MPa) is illustrated, using a method that recalls the approach adopted in metallurgy for studying structure development in metals. Two types of experimental setup were used, namely an apparatus for fast cooling of thin films (100–200 μm thick) at various cooling rates under atmospheric pressure and a device (based on a on-purpose modified injection molding machine) for quenching massive samples (about 1–2 cm3) under hydrostatic pressure fields. In both cases, ex situ characterization experiments were carried out to probe the resulting struct…
Time-resolved X-ray microtomographic measurement of water transport in wood-fibre reinforced composite material
2016
Natural fibre composites are prone to absorb moisture from the environment which may lead to dimensional changes, mold growth, degradation of mechanical properties or other adverse effects. In this work we develop a method for direct non-intrusive measurement of local moisture content inside a material sample. The method is based on X-ray microtomography, digital image correlation and image analysis. As a first application of the method we study axial transport of water in a cylindrical polylactic acid/birch pulp composite material sample with one end exposed to water. Based on the results, the method seems to give plausible estimates of water content profiles inside the cylindrical sample.…
Comparison of the effects of compost and vermicompost soil amendments in organic production of four herb species
2020
The aim of this study was to compare the effects of using compost and vermicompost as soil amendments in organic herb production, using four herb species (Dracocephalum moldavica L., Melissa offici...
Emergence of Aspergillus fumigatus azole resistance in azole-naïve patients with chronic obstructive pulmonary disease and their homes.
2017
Azole-resistant Aspergillus fumigatus (ARAF) has been reported in patients with chronic obstructive pulmonary disease (COPD) but has not been specifically assessed so far. Here, we evaluated ARAF prevalence in azole-naïve COPD patients and their homes, and assessed whether CYP51A mutations were similar in clinical and environmental reservoirs. Sixty respiratory samples from 41 COPD patients with acute exacerbation and environmental samples from 36 of these patient's homes were prospectively collected. A. fumigatus was detected in respiratory samples from 11 of 41 patients (27%) and in 15 of 36 domiciles (42%). Cyp51A sequencing and selection on itraconazole medium of clinical (n = 68) and e…
Gruzijas, Moldovas, Ukrainas īstenotās ES Ekonomiskās integrācijas politikas ietekme uz šo valstu ekonomisko attīstību
2022
Maģistra darba nosaukums ir “Gruzijas, Moldovas, Ukrainas īstenotās ES Ekonomiskās integrācijas politikas ietekme uz šo valstu ekonomisko attīstību”. Pētījuma mērķis ir analizējot ES Austrumu partnerības valstu statistikas datus un sociāli ekonomiskos rādītājus laika posmā no 2009. līdz 2019. gadam, atklāt ES Ekonomiskās integrācijas politikas ietekmi uz ES Austrumu partnerības valstu ekonomisko attīstību. Maģistra darba teorētiskajā daļā apskatīti ekonomiskās integrācijas konceptuālie jautājumi, apkopoti fundamentāli zinātniski pētījumi, meklējot atbildes uz jautājumiem, kādas ir galvenās ekonomiskās integrācijas novērtēšanas iespējas un ietekmes faktori uz valsts ekonomisko attīstību. Maģ…
Filling defects in a ceramics forming process
1997
Publisher Summary This paper presents a simple semi-heuristic method to predict mold filling defects in a porcelain forming process. It involves both a mechanical modelling of this process as a squeezing flow, and a postprocessing calculus that unable a defects prediction as soon as the shape and the size of artistic reliefs are known. This shape analysis is carried out with a multi resolution wavelet analysis. The chapter models the filling stage and to propose a criterium to avoid any filling defect that could waste the quality of the drawings. It illustrates a simplified modelling of the process during which the “turning” stage is approximated by the deformation under pressure of a Norto…
An automatic quality system for injection molding
2007
This paper describes a fully automatic quality system for injection molding. The proposed system includes an on-line measurement platform with a digital camera, a methodology for adaptive design of experiments (DOE), statistical modeling, process monitoring, and a closed loop process control. The system has been tested in the manufacturing of plastic parts for mobile phones.