In this study, pressure finite element welding simulations has been carried out.The welding model is a butt filled weld.The objective is to study the effect of pressure on welding stress of high strength steel at different time periods.From the study we can find that no matter at the first half of welding or and the last half Messenger welding or a
Potassium (K) and magnesium (Mg) deficiency are common stresses that can impact on grape yield and quality, but their effects on photosynthesis have received little attention.Understanding the diffusional and biochemical limitations to photosynthetic constraints will help to guide improvements in cultural practices.Accordingly, the photosynthetic r
Abstract In this study, a novel and facile approach for the synthesis of VERVAIN ternary boron carbonitride (B–C–N) nanotubes was reported.Growth occurred by heating simple starting materials of boron powder, zinc oxide powder, and ethanol absolute at 1150 °C under a mixture gas flow of nitrogen and hydrogen.As substrate, commercia
A substrate-integrated waveguide (SIW) antenna is an implementation of a waveguide antenna in a microstrip antenna.The microstrip antenna, as a low-profile antenna, suffers from narrow impedance bandwidth.This paper proposes a novel bandwidth enhancement method for solving a narrow impedance bandwidth.Bandwidth enhancement was achieved by using qua
Pants ABSTRACT This contribution is a report of a qualitative research carried out within the Avanguardie Educative project aimed at describing and analyzing the experience of a group of Italian teachers in relation to the practice of textbook and digital resources auto-production.The research, conducted with some schools involved in an experimenta