Results 81 to 90 of about 63,605 (264)

ANÁLISE PRELIMINAR DE IMAGENS SAR POLARIMÉTRICAS E POTENCIAL DE APLICAÇÕES EM FLORESTAS TROPICAIS

Revista Brasileira de Cartografia, 2011
Dado o crescente interesse no monitoramento de florestas tropicais, este trabalho apresenta uma análise quantitativa de classes de uso e cobertura da terra em dados SAR complexos, com ênfase nas respostas espectrais e análise de composição colorida. Para
Emerson Luiz Servello, Tatiana Mora Kuplich, Yosio Edemir Shimabukuro   +2 more
doaj  

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Severe Cytokine Release Syndrome and Hemophagocytic Lymphohistiocytosis (HLH)-Like Syndrome Following Administration of Combined Brentuximab Vedotin and Nivolumab for Recurrent Classical Hodgkin Lymphoma: A Case Report

Journal of Blood Medicine
Osama Mosalem,1 Tanmayi Pai,1 Mohammed Alqawasma,2 Marwan Shaikh,1 K David Li,3 Muhamad Alhaj Moustafa1 1Department of Hematology/Oncology, Mayo Clinic, Jacksonville, FL, USA; 2Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Jacksonville ...
Mosalem O, Pai T, Alqawasma M, Shaikh M, Li KD, Alhaj Moustafa M   +5 more
doaj  

Assessing hs-Troponin T and NT-proBNP in acute heart failure and cardiorenal syndrome: Diagnostic, prognostic, and functional interrelationships

Acta Marisiensis - Seria Medica
Background: Acute heart failure (AHF) is frequently complicated by renal dysfunction, leading to cardiorenal syndrome (CRS), and poses significant management challenges.
Alredha Redha Dawud Abd, Haddawi Krarr Haider, Ibrahim Hussein Fadil   +2 more
doaj   +1 more source

CR extension for tube-like CR manifolds of CR dimension 1

Illinois Journal of Mathematics, 2005
This paper deals with extendability of CR functions defined on embedded CR manifolds of CR dimension 1. After showing that wedge-extendability [see e.g., \textit{A. E. Tumanov}, Math. USSR, Sb. 64, No. 1, 129--140 (1989); translation from Mat. Sb., Nov. Ser. 136(178), No.
openaire   +3 more sources

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source