Results 111 to 120 of about 1,002,308 (341)

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Digital Infrastructure, Liminality, and World-Making Via Asia| Gateways, Sieves and Domes: On the Infrastructural Topology of the Chinese Stack

open access: yesInternational Journal of Communication, 2021
This article proposes a topological model capable of accounting for the scale and complexity of China’s digital infrastructure. Beginning with the troubled development of a submarine data cable between Los Angeles and Hong Kong, it identifies the ...
Gabriele de Seta
doaj  

Develop and test fuel cell powered on site integrated total energy sysems: Phase 3: Full-scale power plant development [PDF]

open access: yes
A 25-cell stack of the 13 inch x 23 inch cell size (about 4kW) remains on test after 8300 hours, using simulated reformate fuel. A similar stack was previously shut down after 7000 hours on load.
Kaufman, A.   +5 more
core   +1 more source

Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula   +7 more
wiley   +1 more source

The Influence of Building Airtightness on Airflow in Stairwells

open access: yesBuildings, 2019
Airflow into stairwells due to stack effect is a concern affecting fire safety, energy performance, and indoor air quality. Stack effect in tall buildings can create significant pressure differentials in vertical shafts when differences in outdoor and ...
Philip Mckeen, Zaiyi Liao
doaj   +1 more source

What Do Large Language Models Know About Materials?

open access: yesAdvanced Engineering Materials, EarlyView.
If large language models (LLMs) are to be used inside the material discovery and engineering process, they must be benchmarked for the accurateness of intrinsic material knowledge. The current work introduces 1) a reasoning process through the processing–structure–property–performance chain and 2) a tool for benchmarking knowledge of LLMs concerning ...
Adrian Ehrenhofer   +2 more
wiley   +1 more source

Dispersion and Health Risk Assessment of PM10 Emitted from the Stacks of a Ceramic and Tile industry in Ardakan, Yazd, Iran, Using the AERMOD Model

open access: yesIranian South Medical Journal, 2019
Background: In developing countries, air pollution caused by industries constitutes a serious threat to public health. The present study was conducted to determine the dispersion patern and assess the health risks of PM10 emitted from the stacks of a ...
Saeid Shojaee Barjoee   +4 more
doaj  

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

Application of Hardware Encryption while Operating with STACK for Exploit Safeguard

open access: yesБезопасность информационных технологий, 2011
This paper deals with stack data unauthorized modification protection methods by means of data encryption while fulfilling direct or indirect commands PUSH and POP. These methods are aimed at counteraction of exploits, which substitute return address and
D. V. Gurov
doaj  

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