Results 121 to 130 of about 126,918 (315)

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Mathematics and Variables ─ Independent Variables and Dependent Variables

Kagaku tetsugaku, 2021
openaire   +2 more sources

The use of applets to improve Indonesian student performance in algebra

, 2015
As a core topic in secondary school mathematics, algebra is recognized as one of the most difficult topics, which leads to learning difficulties worldwide. In Indonesia, algebra performance is an important issue.
Sub Mathematics Education, Mathematics Education, Jupri, A.   +2 more
core  

Primary teachers' epistemological beliefs about the teaching and learning of mathematics : the link with and implications for their classroom pedagogy [PDF]

, 2006
EThOS - Electronic Theses Online ServiceGBUnited ...
Bolden, David S, Bolden, David S.
core  

Sparse seismic imaging using variable projection

, 2013
We consider an important class of signal processing problems where the signal of interest is known to be sparse, and can be recovered from data given auxiliary information about how the data was generated.
Tu, Ning, van Leeuwen, Tristan, Aleksandr Y. Aravkin, Sub Fundamental Mathematics, Ning Tu, Aravkin, Aleksandr Y., Tristan van Leeuwen   +6 more
core   +1 more source

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

Advanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari, Supharoek Sornsomrit, Muhammad Ayaz Akbar, Stephan Rudykh   +3 more
wiley   +1 more source

Variable Sharing and Mathematical Practice

Journal of Logic, Language and Information
Abstract The relationship between relevant logic and mathematical practice has often been twofold: while some relevant logicians have focused on the descriptive project of capturing (in some sense) informal mathematical reasoning better than classical logic does, others have engaged in the normative project of ...
openaire   +1 more source

Variable var compensator circuits

, 2006
A family of two reactive-power compensator circuit is presented. A general model of some basic linear elements and switching function blocks is developed first. Then the two proposed compensator circuits are derived from the generalised model.
Marouchos, C, El-Habrouk, M, El-Habrouk, Mohamed, Darwish, MK, Marouchos, Christos, Darwish, Mohamed K.   +5 more
core   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

The distribution of mathematical expectations of a randomized fuzzy variable

Mathware & soft computing, 1998
The Shaffer's definition of the upper and lower expectations of fuzzy variables is considered with respect to randomized fuzzy sets. The notion of randomized fuzzy sets is introduced in order to evaluate fuzzy statistical indices for an arbitrary chosen fuzzy variable.
Kuz'min, V. B., Travkin, S.I.
openaire   +3 more sources