Numerical analyses of selected microencrusters from the Cipit boulders of the St Cassian Formation (Dolomites, NE Italy): palaeoecological implications

Lethaia ◽  
2018 ◽  
Vol 52 (2) ◽  
pp. 285-297 ◽  
Author(s):  
Francisco Sánchez-Beristain ◽  
Joachim Reitner
Keyword(s):  
Numerical Analyses ◽  
Ne Italy ◽  
Cassian Formation

Numerical modeling to well-head protection area delineation, an example in Veneto Region (NE Italy)

2015 ◽  
Vol 35 ◽  
pp. 232-235 ◽  
Author(s):  
Leonardo Piccinini ◽  
Paolo Fabbri ◽  
Marco Pola ◽  
Enrico Marcolongo ◽  
Alessia Rosignoli
Keyword(s):  
Numerical Modeling ◽  
Veneto Region ◽  
Ne Italy ◽  
Head Protection ◽  
Protection Area

MULTIPLE-SCALE AND NUMERICAL ANALYSES FOR THE NONLINEAR OSCILLATIONS OF A GAS BUBBLE SURROUNDED BY A MAXWELL'S FLUID

2019 ◽  
Vol 46 (3) ◽  
pp. 261-275
Author(s):  
César Yepes ◽  
Jorge Naude ◽  
Federico Mendez ◽  
Margarita Navarrete ◽  
Fátima Moumtadi
Keyword(s):  
Nonlinear Oscillations ◽  
Multiple Scale ◽  
Numerical Analyses ◽  
Gas Bubble

scholarly journals Dispersal and colonization risk of the Walnut Twig Beetle, Pityophthorus juglandis, in southern Europe

2021 ◽  
Author(s):  
Matteo Marchioro ◽  
Massimo Faccoli
Keyword(s):  
Spatiotemporal Data ◽  
Medium Size ◽  
Dispersal Capacity ◽  
Factors Affecting ◽  
Geosmithia Morbida ◽  
Ne Italy ◽  
Pityophthorus Juglandis ◽  
Southwestern Usa ◽  
Walnut Twig Beetle ◽  
First Time

AbstractThe Walnut Twig Beetle (WTB), Pityophthorus juglandis Blackman, is a small bark beetle native to Mexico and Southwestern USA recorded for the first time in Europe (NE Italy) in 2013. WTB attacks walnut (Juglans spp.) and wingnut trees (Pterocarya spp.) and is the vector of Geosmithia morbida Kolarík et al., a pathogen causing the thousand cankers disease (TCD). WTB and TCD represent a serious threat for walnut orchards in Europe. Spatiotemporal data of the WTB-TCD infestations recorded from an 8-year-long (2013–2020) monitoring conducted in 106 walnut orchards of NE Italy were used to develop a model in order to analyze: (i) the effective dispersal capacity of WTB, (ii) the factors affecting dispersal and (iii) the colonization risk of healthy walnut orchards. We registered a mean annual dispersal of 9.4 km, with peaks of about 40 km. Pest dispersal is affected by distance of suitable hosts from the nearest infested site, number of walnut orchards in the surroundings (both infested and healthy), orchard size and walnut species in the orchard. Using the model, it was also possible to calculate the colonization risk of a specific walnut orchard according to its characteristics showing, for instance, that a medium-size (5,000 trees) black walnut orchard located at 25 km from the nearest infested orchard has an infestation risk of about 50% of probability.

Geosynthetic-reinforced pile-supported embankments − 3D discrete numerical analyses of the interaction and mobilization mechanisms

2021 ◽  
Vol 242 ◽  
pp. 112337
Author(s):  
Tuan A. Pham ◽  
Quoc-Anh Tran ◽  
Pascal Villard ◽  
Daniel Dias
Keyword(s):  
Numerical Analyses

scholarly journals A Study of Yielding and Plasticity of Rapid Prototyped ABS

Mathematics ◽  
2021 ◽  
Vol 9 (13) ◽  
pp. 1495
Author(s):  
Dan-Andrei Șerban ◽  
Cosmin Marșavina ◽  
Alexandru Viorel Coșa ◽  
George Belgiu ◽  
Radu Negru
Keyword(s):  
Experimental Data ◽  
Stress State ◽  
Plastic Flow ◽  
Plane Stress ◽  
Yield Criterion ◽  
Numerical Analyses ◽  
Flow Potential ◽  
Stress States ◽  
State Configuration

In this article, the yielding and plastic flow of a rapid-prototyped ABS compound was investigated for various plane stress states. The experimental procedures consisted of multiaxial tests performed on an Arcan device on specimens manufactured through photopolymerization. Numerical analyses were employed in order to determine the yield points for each stress state configuration. The results were used for the calibration of the Hosford yield criterion and flow potential. Numerical analyses performed on identical specimen models and test configurations yielded results that are in accordance with the experimental data.

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