Results 91 to 100 of about 1,742,961 (319)

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Green analysis of illicit drugs on banknote dust

Green Analytical Chemistry
Purpose: This study aims to develop and validate the first analytical method to assess the presence of common illicit drugs on banknote dust from counting machines via green preanalytical and analytical approaches.
Teresa Cecchi, Arianna Giuliani, Carlo Catini   +2 more
doaj   +1 more source

Understanding the Effect of Resistance Temperature Detector Temperature Controllers on Microstructural Alignment in Magnetic Freeze Casting

Advanced Engineering Materials, EarlyView.
The effect of temperature controllers that are commonly used in freeze‐casting is investigated in this work. Temperature controllers are observed to generate a voltage in the slurry. Microstructural alignment and ultimate compressive strength data show this voltage to interfere with the ability to align the microstructure using magnetic fields ...
Maddie A. Schmitz, Steven E. Naleway
wiley   +1 more source

Trânsito como fator estressor para os trabalhadores

Saúde, Ética & Justiça, 2009
Contexto: Segundo dados do IBGE (2007), São Paulo tem cerca de 5 milhões de veículos e os congestionamentos de trânsito constituem fatos corriqueiros. O stress afeta o motorista em três níveis diferentes: afetivo, cognitivo e físico.
Talita Zerbini, Adriana de Almeida Campos Ridolfi, Ana Cláudia Camargo Gonçalves da Silva, Lys Esther Rocha   +3 more
doaj  

Rheocasting versus Die Casting: An Insight into the Low‐Cycle Fatigue Behavior of AlSi7Mg0.6

Advanced Engineering Materials, EarlyView.
The study compares rheocast lightweight components with high‐pressure die cast materials regarding microstructure and fatigue behavior. Rheocast process offers higher efficiency due to lower casting temperatures. Despite some microstructural differences, both processes show similar strengths (yield strength 125 MPa, tensile strength 240 MPa).
Julia Richter, Thomas Wegener, Andreas Schilling, Martin Fehlbier, Thomas Niendorf   +4 more
wiley   +1 more source

O impacto do atendimento às vítimas de acidentes de motocicleta na rotina do Pronto Socorro do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo

Saúde, Ética & Justiça, 2009
Sendo São Paulo uma cidade conhecida pelo seu trânsito caótico e engarrafamentos recordes, noticiados quase diariamente por todos os veículos de comunicação brasileiros, não poderiam deixar de ser registradas centenas de acidentes de trânsito por dia na ...
Talita Zerbini, Mariana da Silva Ferreira, Vilma Leyton, Daniel Romero Muñoz   +3 more
doaj  

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
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, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Tendências da vulnerabilidade às infecções pelo HIV e HCV entre internos da FEBEM avaliados em diferentes períodos - 1994 a 1995 e 2000 a 2001

Saúde, Ética & Justiça, 2005
Este estudo faz uma abordagem da condição do menor infrator, internos da FEBEM (Fundação Estadual para o Bem Estar do Menor de São Paulo) e sua situação de risco sob diferentes prismas.
Leila Strazza, Eduardo Massad, Heráclito B. Carvalho   +2 more
doaj  

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source