Results 101 to 110 of about 212,856 (334)
LÓGICA DE PROGRAMAÇÃO E SUA INFLUÊNCIA NO ENSINO
Revista Extensão & Cidadania, 2019 Este trabalho visa abordar o uso da lógica de programação em sala de aula, baseado nas experiências de dois bolsistas de um projeto de extensão de uma faculdade federal do estado de São Paulo, aplicado a uma escola municipal de Campos do Jordão.
Gabriel Silva Delgado +3 more
doaj +1 more source
From Damage to Functionality: Remanufacturing of Thrust Roller Bearings by Tailored Forming
Advanced Engineering Materials, EarlyView.Herein, the wear and fatigue behavior of repaired bearing raceways with a new powder alloy is investigated using a FE8 test‐rig and an oscillating tribometer. The tests are compared with industrial manufactured bearings to evaluate the repair quality. The repair can extend the service life of the repaired bearing to that of a new bearing and improves ...
Felix Saure +3 more
wiley +1 more source
Scratching the Bose surface [PDF]
Nature, 2002 This is a `News and Views' article discussing recent proposals for ground states of many boson systems which are neither superfluids nor Mott insulators.
openaire +3 more sources
Advanced Engineering Materials, EarlyView.A hybrid system for de‐icing made of gradient polymer coatings, deposited on aluminum coupled with an electromechanical system, is demonstrated as an effective and durable strategy for reducing drastically ice adhesion. The system is capable of detaching ice blocks over the coating in less than 1 s, regardless of the ice type and covered area ...
Gabriel Hernández Rodríguez +8 more
wiley +1 more source
Acta Obstetricia et Gynecologica ScandinavicaIntroduction Intrauterine insemination (IUI) is one of the most widespread fertility treatments. However, IUI protocols vary significantly amongst fertility clinics. Various add‐on interventions have been proposed to boost success rates. These are mostly
Elpiniki Chronopoulou +7 more
doaj +1 more source
Note on Brinell and Scratch Tests for Hardened Steel [PDF]
, 1919 R A HADFIELD, S. A. Main
openalex +1 more source
Advanced Engineering Materials, EarlyView.Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec +6 more
wiley +1 more source
A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?
Advanced Engineering Materials, EarlyView.Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli +5 more
wiley +1 more source