Results 71 to 80 of about 81,511 (318)

Discontinuities that arise when designing for educational improvement at state scale

Frontiers in Education
This paper explores the tensions—or discontinuities—that arise when designing for educational improvement at scale through research-practice partnerships (RPPs).
Michelle Stephan, Allison McCulloch, Catherine Schwartz, Holt Wilson, Katherine Mawhinney   +4 more
doaj   +1 more source

EXPERIMENTAL AND NUMERICAL RESEARCH OF JOINTED ROCK MASS ANISOTROPY IN A THREE-DIMENSIONAL STRESS FIELD

Rudarsko-geološko-naftni Zbornik, 2022
Joints often have a significant influence on material characteristics. The discontinuities’ coalescence mechanism and complex jointed rock mass structure as a composite need to be further explored.
Pavel Verbilo, Maxim Karasev, Nikita Belyakov, Grigirii Iovlev   +3 more
doaj  

Optimization of the Production of Rubber Compounds Using Mathematical Models

Advanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle, Andreas Limper, Ulrich Giese, Carlos Lucke, Mario Beiner, Christoph Gögelein, Lisa Leuchtenberger‐Engel, Christian Hopmann   +7 more
wiley   +1 more source

Application of terrestrial laser scanning for the geometric characterization of discontinuities in limestone quarry faces

Geodesy and Cartography
This work investigates the effect of Terrestrial Laser Scanning (TLS) configuration on measuring the geometric properties that characterize discontinuities in limestone quarry faces. While the application of laser scanning technologies to acquire the 3D
Maciej Cerekwicki, Magdalena Cerekwicka, Rita Machete, Ana Paula Falcão, Alexandre B. Gonçalves, Paweł Sikora, Matilde Costa e Silva   +6 more
doaj   +1 more source

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

Advanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho, M. Naeem, T. H. C. Costa, M. S. Libório, J. C. A. Queiroz, C. B. B. Luna, R. R. M. Sousa, P. S. Vieira, E. M. Araújo   +8 more
wiley   +1 more source

Discontinuous modelling of strain localisation and failure

, 2001
The computational simulation of failure in solids poses many challenges. A proper understanding of how structures respond under loading, both before and past the peak load, is important for safe and economical constructions.
Wells, G.N., Wells, G.N. (author)
core   +1 more source

Reducing Audible Spectral Discontinuities [PDF]

, 2001
A common problem in diphone synthesis is discussed, viz., the occurrence of audible discontinuities at diphone boundaries. Informal observations show that spectral mismatch is the most likely the clause of this phenomenon.
Veldhuis, R.N.J., Klabbers, Esther, E. Klabbers, R. Veldhuis, Veldhuis, Raymond N.J., Klabbers, E.A.M.   +5 more
core   +1 more source

Aligning Firm Capabilities and Business Environment in a Managerial Context: Evidence from the 2016 Presidential Election and Dodd-Frank Rollback

American Business Review
Studies examining firm capabilities under abrupt discontinuities are scarce. To contribute to this literature, we focus on the effect of matching firm capabilities to business environments.
Luis A. Perez-Batres, Abu Amin, Len J. Treviño, Khawaja Mamun   +3 more
doaj   +1 more source

Nondestructive Testing of Welded Composite Metal Foams

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva, Aman Kaushik, Afsaneh Rabiei   +2 more
wiley   +1 more source

Strong embedded discontinuities for simulating fracture in quasi-brittle materials

, 2011
In this paper embedded strong discontinuities are used to model discrete cracking in materials like concrete. In the approach followed a discontinuous displacement field is considered and the deformation is localized at a surface of zero width.

core