Results 171 to 180 of about 17,445,407 (307)

Influence of TiC and TiN Ceramic Reinforcements on the Microstructure, Thermal Expansion Behavior, and Tensile Properties of Invar 36 Manufactured by Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines Invar composites reinforced with titanium carbide (TiC) and titanium nitride (TiN) using laser powder bed fusion (LPBF). It presents the influence of reinforcements on microstructure, tensile properties, and thermal expansion. Results show that TiC effectively strengthens Invar while maintaining low thermal expansion, whereas TiN ...
Ayodeji Nathaniel Oyedeji   +3 more
wiley   +1 more source

Feasibility and Limitations of the Advanced Replica Process for Bioactive Glasses

open access: yesAdvanced Engineering Materials, EarlyView.
Periodic 3D‐printed Kelvin‐cell templates enable a controlled advanced replica process for fabricating highly porous glass lattices. Across P45K9, 45S5, and 13–93, material‐dependent differences in coating, burnout, and shrinkage lead to distinct strut morphologies, while comparable final porosities of 83%–88% are retained.
Swantje Funk   +4 more
wiley   +1 more source

Examining FAMU’s supply of teachers: a value-added analysis of college of preparation on pupil academic achievement [PDF]

open access: yes
Some teacher preparation institutions may provide higher quality teachers than others. Pupil academic achievement is one measure of the quality of teaching.
Mason, Patrick L.
core  

Academic self-concept and ecological predictors of longitudinal change in reading achievement in Chile: evidence from a national study. [PDF]

open access: yesFront Psychol
Salvo-Garrido S   +4 more
europepmc   +1 more source

Investigating the Low‐Temperature Phase Stability of the Binary Ta–W System

open access: yesAdvanced Engineering Materials, EarlyView.
Atomistic simulations show that the binary Ta–W system forms ordered intermetallic phases, B2‐TaW and D03‐TaW3, as 0 K ground states. Configurational entropy, however, lowers the free energy of the disordered bcc solid solution, which becomes the stable phase above about 400 K.
Klemens Lechner   +7 more
wiley   +1 more source

The relationship between personality factors and academic achievement of high school students of Oman

open access: yes, 1987
The purpose of this study was to investigate the relationship between the academic achievement and the need for achievement and the need for affiliation for high school students of Oman.
Al-Nabhani, Hilal Zahir
core  

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou   +3 more
wiley   +1 more source

Academic Achievement: A Comparison of the Educational Performance of Twelfth Grade Athletes and Non-Athletes

open access: yes, 2015
The purpose of this research is to investigate the value of high school interscholastic athletic participation on student achievement. This research is a causal comparative study of student academic achievement, as defined by grade point average and ...
Ursone, Brian A.
core  

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