Results 41 to 50 of about 8,946 (260)
COVID-19 pandemics impacted everyone's lives. Risk of infection by the SARS-CoV-2 virus imposed severe restrictive measures, submitting the population to home isolation, daily use of face masks and restringing social encounters.
Pedro Henrique G. N. Marques +2 more
doaj +1 more source
A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam +2 more
wiley +1 more source
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
Social dimensions of expertise in World of Warcraft players
Expertise development in the massively multiplayer online game World of Warcraft (Blizzard Entertainment, 2004) depends greatly on a player's use of social skills to gain access to expert player groups and accrue social and cultural capital.
Mark Chen
doaj +1 more source
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner +22 more
wiley +1 more source
Importance. Active mastery of a foreign language, including Russian as a foreign language, remains the desire of those who study the language. The intensification of the educational process sets the task of maintaining students' motivation for the ...
E. M. Miloserdova, E. A. Morozov
doaj +1 more source
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé +5 more
wiley +1 more source
Perfunctory gamification in the world of second language learning
Gamification is a trend that is steadfastly increasing in popularity in several fields that involve learning. Several concepts borne out of this have recently been applied with the intent to facilitate second language learning.
Opacki Marcin
doaj +1 more source
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan +4 more
wiley +1 more source
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source

