Results 111 to 120 of about 15,190 (293)

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm   +6 more
wiley   +1 more source

Reformation 500: Any Cause for Celebration?

open access: yesOpen Theology, 2018
In general the effect of the Reformation has been negative, but this is because it but imperfectly overcame the legacy of later medieval philosophy which was both univocalist and nominalist.
Milbank John
doaj   +1 more source

Relations Without Polyadic Properties: Albert the Great On the Nature and Ontological Status of Relations [PDF]

open access: yes, 2001
I think it would be fair to say that, until about 1900, philosophers were generally reluctant to admit the existence of what are nowadays called polyadic properties.1 It is important to recognize, however, that this reluctance on the part of pre ...
Brower, Jeffrey E.
core   +1 more source

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

open access: yesAdvanced 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   +3 more
wiley   +1 more source

SOSYAL BİLİMLERİN GELECEĞİ ÜZERİNE YENİDEN DÜŞÜNMEK

open access: yesFelsefe Dünyası, 2012
11 Eylül sonrası dünyadaki değişim hareketinin teorik düzlemdeki enönemli sonuçlarından biri postmodernist söylemin gerilemesidir. Bu iddianın,kanımca, biri teorik diğeri pratik iki gerekçesi vardır.
Kurtul Gülenç
doaj  

Abstracta in Time: A Metaontological Reappraisal of Mathematical ‘Existence’

open access: yesPhilosophies
This paper investigates how abstracta, such as numbers or functions, can be said to emerge at particular times, as in the claim that “complex numbers did not exist before the sixteenth century.” Standard accounts encounter well-known difficulties ...
Johnny Sakr
doaj   +1 more source

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi   +7 more
wiley   +1 more source

SOYUT GÖNDERME PROBLEMİ

open access: yesFelsefe Dünyası, 2015
Soyut gönderme problemi tümeller probleminin içerdiği problemlerdenbiri ve soyut tekil terimlerin gönderimini nasıl anladığımızla ilgilidir.“Kırmızı” ve “üçgen” gibi soyut tekil terimler doğru önermelerde yeraldıklarında nesnelere işaret ediyor gibi ...
Ahmet Eyim
doaj  

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

open access: yesAdvanced 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   +9 more
wiley   +1 more source

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