Results 131 to 140 of about 510,364 (266)

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

Cubic differential systems with two affine real non-parallel invariant straight lines of maximal multiplicity

, 2015
In this article we classify all differential real cubic systems possessing two affine real non-parallel invariant straight lines of maximal multiplicity. We show that the maximal multiplicity of each of these lines is at most three. The maximal sequences of multiplicities: m3, 3; 1, m3, 2; 2, m3, 1; 3, m2, 2; 3, m12, 1; 3, m11, 1; 3 are determined. The
openaire   +1 more source

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Modality-agnostic decoding of vision and language from fMRI. [PDF]

Elife
Nikolaus M, Mozafari M, Berry I, Asher N, Reddy L, VanRullen R.   +5 more
europepmc   +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

Prediction of First and Multiple Antiretroviral Therapy Interruptions in People Living With HIV: Comparative Survival Analysis Using Cox and Explainable Machine Learning Models. [PDF]

JMIR Med Inform
Salami D, Koech E, Turan JM, Stafford KA, Nyagah LM, Ohakanu S, Ngugi AK, Charurat M.   +7 more
europepmc   +1 more source

Canonical forms of cubic differential systems with real invariant straight lines of total multiplicity seven along one direction

, 2017
Fie sistemul diferențial cubic general system x = Px, y , y =Qx, y , unde [ ] ,,PQx y ÎR ,max{degP,degQ} = 3 ,GCDP,Q =1. Conform [1], pentru un sistem diferențial cubic se poate de construit o integrală primă de tip Darboux, dacă sistemul dat posedă un număr suficient de drepte invariante considerate cu multiplicitățile lor. În această lucrare se obțin
openaire   +2 more sources

Configurations of invariant lines of total multiplicity 7 of cubic systems with four real distinct infinite singularities

, 2018
Consider the family of planar cubic polynomial di erential systems. Following [1] we call conguration of invariant lines of a cubic system the set of complex invariant straight lines which may have real coecients, including the line at in nity, of the system, each endowed with its own multiplicity and together with all the real singular points of this ...
Bujac, C., Schlomiuk, D.I., Vulpe, N.I.
openaire   +1 more source