Results 171 to 180 of about 293,085 (306)

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

APLICAÇÃO DE CORRETIVOS E CRESCIMENTO DE OLEAGINOSAS EM SOLOS SALINIZADOS DO SEMIARIDO

Revista Verde de Agroecologia e Desenvolvimento Sustentável, 2012
A pesquisa objetiva avaliar o efeito de corretivos nos atributos do solo e no crescimento inicial da mamona (Ricinus communis L.) e do girassol (Helianthus annus L.) cultivados em solos degradados por sais.
Maria Holanda Leite, Rivaldo Vital dos Santos, Artur D V Gomes, Adriana de Fatima. Meira Vital   +3 more
doaj  

Recomposição do Ph do solo utilizando casca de ovo: Enfoque CTS sobre o ensino de química.

Revista ENCITEC, 2014
Este artigo relata uma experiência no ensino de Química apresentando o encaminhamento metodológico realizado no contexto escolar, com a participação de 10 alunos das 1ª e 2a séries do Ensino Médio de um Centro Estadual de Educação Profissional, na cidade de Rio Negro.
Niezer, Tania Mara, Silveira, Rosemari Monteiro Castilho Foggiatto   +1 more
openaire   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Alterações físicas e químicas num cambissolo húmico de campo nativo após a correção da acidez

Revista de Ciências Agroveterinárias, 2014
Os agricultores estão introduzindo culturas anuais em áreas de campo nativo, utilizando diferentes sistemas de manejo e métodos de correção da acidez.
André da Costa, Jackson Adriano Albuquerque, Paulo Roberto Ernani, Cimélio Bayer, Liliane Márcia Mertz   +4 more
doaj  

EFEITO DO pH DO SOLO SOB O DESENVOLVIMENTO DO CAPIM-ANNONI

, 2019
Morais Mota, Josie, Sequinatto, Leticia, Maria Medeiros Coelho, Cleide, Costa Silva, Elifas   +3 more
openaire   +1 more source

VARIABILIDADE ESPACIAL DO pH E CONDUTIVIDADE ELÉTRICA EM SOLO CULTIVADO COM ARROZ IRRIGADO NO RIO GRANDE DO NORTE

Revista Verde de Agroecologia e Desenvolvimento Sustentável, 2012
RESUMO - A cultura do arroz irrigado é a principal atividade agrícola da região do Vale do Apodi, sendo cultivados com irrigação por inundação, nos mais diversos sistemas de plantio, consumindo grandes quantidades de água, adubos químicos e agrotóxicos.
Barreto, Herlon Bruno Ferreira, Amaral Júnior, Vital Paulino do, Maia, Priscila de Melo Evangelista, Silva Neto, Samuel José da   +3 more
openaire   +2 more sources

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source