Results 51 to 60 of about 166,049 (286)

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

open access: yesAdvanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov   +4 more
wiley   +1 more source

African Ethiopia and Byzantine imperial orthodoxy: Politically influenced self-definition of Christianity

open access: yesHTS Teologiese Studies/Theological Studies, 2019
The ancient Ethiopian Christian empire was an emergent and notable power in Eastern Africa and influenced its surrounding regions. It was itself influenced both religiously and politically. The ancient Christian narrative of North Africa has been deduced
Rugare Rukuni, Erna Oliver
doaj   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Ethiopian Christianity: A continuum of African Early Christian polities

open access: yesHTS Teologiese Studies/Theological Studies, 2019
The 4th century CE was definitive for Early Christianity as there emerged an imperial orthodoxy establishment. This was the inception of an era of a Christian polity characterised by symbiotic ties between the imperial establishment and a developing ...
Rugare Rukuni, Erna Oliver
doaj   +1 more source

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

open access: yesAdvanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier   +17 more
wiley   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

open access: yesAdvanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik   +7 more
wiley   +1 more source

Optimization of the Production of Rubber Compounds Using Mathematical Models

open access: yesAdvanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle   +7 more
wiley   +1 more source

From advocating to attending: The shifting role of the South African Council of Churches during the COVID-19 pandemic [PDF]

open access: yesPharos Journal of Theology
The South African Council of Churches (SACC) has been on the receiving end of criticism from scholars since 1994. This article contends that the 2020 national lockdown at the height of the COVID-19 pandemic was the pinnacle of the renewal of the SACC ...
Dr Thembelani Jentile
doaj   +1 more source

African Christian Biography Serialized: stories my grannies never told me: memory and orality in the narrative of African Christian history

open access: yes, 2019
[In this paper I have argued for the importance of both memory and narration in writing African Christian history by means of documenting the biographies of African Christian ancestors.
Ilo, Stan Chu
core  

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca   +9 more
wiley   +1 more source

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