Effect of the flow macro-scale on the effective stresses in gas-solid riser flows

Biomimetics involves investigation of structure, function, and methods of synthesis of biological composite materials. The goal is to apply this information to the design and synthesis of materials for engineering applications.Properties of engineering materials are structure sensitive through the whole spectrum of dimensions from nanometer to macro scale. The goal in designing and processing of technological materials, therefore, is to control microstructural evolution at each of these dimensions so as to achieve predictable physical and chemical properties. Control at each successive level of dimension, however, is a major challenge as is the retention of integrity between successive levels. Engineering materials are rarely fabricated to achieve more than a few of the desired properties and the synthesis techniques usually involve high temperature or low pressure conditions that are energy inefficient and environmentally damaging.In contrast to human-made materials, organisms synthesize composites whose intricate structures are more controlled at each scale and hierarchical order.

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EFFECT OF THE MACRO-SCALE TOPOLOGY OVER THE EFFECTIVE DRAG COEFFICIENT IN DENSE GAS-SOLID FLUIDIZED FLOWS

10.26678/abcm.encit2018.cit18-0017 ◽

2018 ◽

Author(s):

Seyed Reza Amini Niaki ◽

Joseph Mouallem ◽

Christian Milioli ◽

Fernando Milioli

Keyword(s):

Drag Coefficient ◽

Dense Gas ◽

Macro Scale

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Underground waterlines

Focaal ◽

10.3167/fcl.2019.032103 ◽

2019 ◽

pp. 1-14

Author(s):

Denys Gorbach

Keyword(s):

Macro Level ◽

The Political ◽

Macro Scale ◽

Ethnographic Data ◽

Economic Boom ◽

Labor Hoarding ◽

Large Enterprises

In order to explore factors conditioning the political quietude of Ukrainian labor, this article analyzes ethnographic data collected at two large enterprises: the Kyiv Metro and the privatized electricity supplier Kyivenergo. Focusing on a recent labor conflict, I unpack various contexts condensed in it. I analyze the hegemonic configuration developed in the early 1990s, at the workplace and at the macro level, and follow its later erosion. This configuration has been based on labor hoarding, distribution of nonwage resources, and patronage networks, featuring the foreman as the nodal figure. On the macro scale, it relied on the mediation by unions, supported by resources accumulated during the Soviet era and the economic boom of the 2000s. The depletion of these resources has spelled the ongoing crisis of this configuration.

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The Development of the Wall Momentum Erosive Burning Scaling Law and Macro Scale Erosive Burning Model

10.21236/ada521297 ◽

2010 ◽

Author(s):

Brian A. McDonald

Keyword(s):

Scaling Law ◽

Erosive Burning ◽

Macro Scale ◽

Burning Model

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Meso-Scale Experimental & Numerical Studies for Predicting Macro-scale Performance of Advanced Reactive Materials (ARMs)

10.21236/ada623037 ◽

2015 ◽

Author(s):

Naresh Thadhani ◽

Arun Gokhale ◽

Jason Quenneville ◽

Jennifer Breidenich ◽

Manny Gonzales ◽

...

Keyword(s):

Reactive Materials ◽

Numerical Studies ◽

Macro Scale ◽

Meso Scale

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Estimation of Regional Parameters in a Macro Scale Hydrological Model

Hydrology Research ◽

10.2166/nh.2001.0010 ◽

2001 ◽

Vol 32 (3) ◽

pp. 161-180 ◽

Cited By ~ 10

Author(s):

Kolbjørn Engeland ◽

Lars Gottschalk ◽

Lena Tallaksen

Keyword(s):

Additional Data ◽

Hydrological Model ◽

Sampling Methods ◽

Probability Distributions ◽

Repeated Application ◽

Landscape Characteristics ◽

Time Period ◽

Macro Scale ◽

Model Element ◽

Regular Sampling

Macro-scale hydrological modelling implies a repeated application of a model within an area using regional parameters. These parameters are based on climate and landscape characteristics, and they are used to calculate the water balance in ungauged areas. The regional parameters ought to be robust and not too dependent of the catchment and time period used for calibration. The ECOMAG model is applied for the NOPEX-region as a macro-scale hydrological model distributed on a 2×2 km2 grid. Each model element is assigned parameters according to soil and vegetation classes. A Bayesian methodology is followed. An objective function describing the fit between observed and simulated values is used to describe the likelihood of the parameters. Using Baye's theorem these likelihoods are used to update the probability distributions of the parameters using additional data, being it either an additional year of streamflow or an additional streamflow station. Two sampling methods are used, regular sampling and Metropolis-Hastings sampling. The results show that regional parameters exist according to some predefined criteria. The probability distribution of the parameters shows a decreasing variance as data from new catchments are used for updating. A few parameters do, however, not exhibit this property, and they are therefore not suitable in a regional context.

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Effect of the flow macro-scale on the effective stresses in gas-solid riser flows

On the effects of the flow macro-scale over meso-scale filtered parameters in gas-solid riser flows

EFFECT OF THE FLOW MACRO-SCALE ON THE EFFECTIVE STRESSES IN DENSE GAS-SOLID FLUIDIZED FLOWS

Effect of the flow macro-scale on the effective drag coefficient in gas-solid riser flows

Macro-scale effects over filtered and residual stresses in gas-solid riser flows

Tailoring microstructures of materials through biomimetics

EFFECT OF THE MACRO-SCALE TOPOLOGY OVER THE EFFECTIVE DRAG COEFFICIENT IN DENSE GAS-SOLID FLUIDIZED FLOWS

Underground waterlines

The Development of the Wall Momentum Erosive Burning Scaling Law and Macro Scale Erosive Burning Model

Meso-Scale Experimental & Numerical Studies for Predicting Macro-scale Performance of Advanced Reactive Materials (ARMs)

Estimation of Regional Parameters in a Macro Scale Hydrological Model

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