Geoenvironmental Evaluation and Characterization of Near-Surface Subsoils for Sustainable Building Construction: An Integrated Approach

The use of cross-sectional Transmission Electron Microscopy (TEM) has become invaluable for the characterization of the near-surface regions of semiconductors following ion-implantation and/or transient thermal processing. A fast and reliable technique is required which produces a large thin region while preserving the original sample surface. New analytical techniques, particularly the direct imaging of dopant distributions, also require good thickness uniformity. Two methods of ion milling are commonly used, and are compared below. The older method involves milling with a single gun from each side in turn, whereas a newer method uses two guns to mill from both sides simultaneously.

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Chemical characterization of coatings by analytical techniques sensitive to the surface and near-surface

Thin Solid Films ◽

10.1016/0040-6090(78)90364-4 ◽

1978 ◽

Vol 53 (1) ◽

pp. 3-18 ◽

Cited By ~ 13

Author(s):

Paul H. Holloway ◽

G.E. McGuire

Keyword(s):

Chemical Characterization ◽

Analytical Techniques ◽

Near Surface

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Microstructure of Recycled Gypsum Plaster by SEM

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.912-914.243 ◽

2014 ◽

Vol 912-914 ◽

pp. 243-246 ◽

Cited By ~ 8

Author(s):

Gladis Camarini ◽

Sayonara M.M. Pinheiro

Keyword(s):

Microstructural Characterization ◽

Building Construction ◽

Microstructural Characteristics ◽

Construction Waste ◽

Gypsum Plaster ◽

Recycled Gypsum

Gypsum waste from building constructions is a material which can contaminate the soil and groundwater if is disposed directly in the soil or landfill without any control. In Brazil, these wastes are considered a recycle and/or recovery material, but the research of gypsum plaster recycling are very few at this moment. In this way, this work presents the microstructural characterization of two types of recycled plaster. The recycled plaster was produced by a grinding and calcination the building construction waste. Microstructural characteristics were evaluated by SEM observations. The results show similarities between crystals of recycled and commercial plasters.

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Numerical Solution of Bending of the Beam with Given Friction

Mathematics ◽

10.3390/math9080898 ◽

2021 ◽

Vol 9 (8) ◽

pp. 898

Author(s):

Michaela Bobková ◽

Lukáš Pospíšil

Keyword(s):

Sliding Friction ◽

Quadratic Function ◽

Building Construction ◽

Beam Model ◽

Bernoulli Beam ◽

Sustainable Building ◽

Construction Design ◽

Euler Bernoulli Beam ◽

Bernoulli Beam Model ◽

Fixed Beam

We are interested in a contact problem for a thin fixed beam with an internal point obstacle with possible rotation and shift depending on a given swivel and sliding friction. This problem belongs to the most basic practical problems in, for instance, the contact mechanics in the sustainable building construction design. The analysis and the practical solution plays a crucial role in the process and cannot be ignored. In this paper, we consider the classical Euler–Bernoulli beam model, which we formulate, analyze, and numerically solve. The objective function of the corresponding optimization problem for finding the coefficients in the finite element basis combines a quadratic function and an additional non-differentiable part with absolute values representing the influence of considered friction. We present two basic algorithms for the solution: the regularized primal solution, where the non-differentiable part is approximated, and the dual formulation. We discuss the disadvantages of the methods on the solution of the academic benchmarks.

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Learning Through Processing: Toward an Integrated Approach to Early Word Learning

Annual Review of Linguistics ◽

10.1146/annurev-linguistics-031220-011146 ◽

2021 ◽

Vol 8 (1) ◽

Author(s):

Stephan C. Meylan ◽

Elika Bergelson

Keyword(s):

Word Learning ◽

Empirical Work ◽

Integrated Approach ◽

Linguistic Knowledge ◽

Annual Review ◽

Publication Date ◽

Learning Mechanisms ◽

Lexical Knowledge ◽

Novel Word Learning

Children's linguistic knowledge and the learning mechanisms by which they acquire it grow substantially in infancy and toddlerhood, yet theories of word learning largely fail to incorporate these shifts. Moreover, researchers’ often-siloed focus on either familiar word recognition or novel word learning limits the critical consideration of how these two relate. As a step toward a mechanistic theory of language acquisition, we present a framework of “learning through processing” and relate it to the prevailing methods used to assess children's early knowledge of words. Incorporating recent empirical work, we posit a specific, testable timeline of qualitative changes in the learning process in this interval. We conclude with several challenges and avenues for building a comprehensive theory of early word learning: better characterization of the input, reconciling results across approaches, and treating lexical knowledge in the nascent grammar with sufficient sophistication to ensure generalizability across languages and development. Expected final online publication date for the Annual Review of Linguistics, Volume 8 is January 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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Acoustic Performance of Louvred Facades for Brisbane Domestic Airport: An Integrated Approach

ASME 2012 Noise Control and Acoustics Division Conference ◽

10.1115/ncad2012-1393 ◽

2012 ◽

Author(s):

Frank Butera ◽

Keith Hewett

Keyword(s):

Natural Ventilation ◽

Transmission Loss ◽

Internal Noise ◽

Building Design ◽

Integrated Approach ◽

External Noise ◽

Climatic Conditions ◽

Sustainable Building ◽

Heating And Cooling ◽

Airport Terminals

Maximising cross ventilation is a low energy method of naturally ventilating and providing heating and cooling to deep plan spaces. Significant reduction in the emission of greenhouse gases can be achieved through minimising the use of mechanical systems in regions with climatic conditions that support the use of natural ventilation. Arup has provided input into the design of a louvered facade for the control of external noise for Brisbane Domestic Airport. A full scale prototype facade was constructed and noise transmission loss measurements were undertaken. The results indicate that significant noise reduction can be achieved to enable compliance with the internal noise limits for airport terminals, whilst using natural ventilation. The findings from this research will directly benefit building designers and innovators in the pursuit of achieving sustainable building design.

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