Results 41 to 50 of about 14,925 (261)

Facial cosmetic therapy use amongst patients with systemic sclerosis: an Australian cohort study

open access: yesArthritis Care &Research, Accepted Article.
Objective Systemic sclerosis (SSc) is associated with numerous facial manifestations for which patients may engage in cosmetic therapies. It is unclear how patients with SSc use these therapies. This study sought to characterise patient engagement and experiences with cosmetic therapies for SSc‐related and non‐SSc‐related facial changes.
Zachary Warren   +11 more
wiley   +1 more source

Optical Analysis of a Hydrogen Direct-Injection-Spark-Ignition-Engine Using Lateral or Central Injection

open access: yesEnergies
This paper investigates the abnormal combustion behavior—specifically knock and pre-ignition—of a hydrogen direct-injection (H2-DI) engine operated under stoichiometric conditions.
Hermann Sebastian Rottengruber   +3 more
doaj   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch   +3 more
wiley   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran   +6 more
wiley   +1 more source

Optimization of oxygen-kerosene gas generator mixing processes

open access: yesНаучно-технический вестник информационных технологий, механики и оптики
The study presents optimization results aimed at improving fuel–oxidizer mixing while preserving the operational characteristics of a liquid rocket engine combustion chamber.
P. A. Arkhipov, P. V. Bulat, M. E. Renev
doaj   +1 more source

Calculation of sand–water flow and experimental study of sediment erosion in injector of Pelton turbine [PDF]

open access: yesInternational Journal of Fluid Engineering
With the rapid development of high-head hydraulic resources in the southwest of China, the problem of sediment erosion of large Pelton turbines has attracted increasing attention.
Jitao Liu   +9 more
doaj   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

open access: yesAdvanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ   +19 more
wiley   +1 more source

Research on Load Distribution Uniformity of Clamping System of CT Injector Head

open access: yesShiyou jixie, 2020
There is no systematic study on the load distribution of the clamping blocks in the entire clamping area of the coiled tubing(CT)injector head. To address the problem, based on the basic theory of structural mechanics, a mechanical model of the injector ...
Hu Zhiqiang   +5 more
doaj  

Electron bunch structure in energy recovery linac with high-voltage dc photoelectron gun

open access: yesPhysical Review Accelerators and Beams, 2016
The internal structure of electron bunches generated in an injector line with a dc photoelectron gun is investigated. Experiments were conducted on the ALICE (accelerators and lasers in combined experiments) energy recovery linac at Daresbury Laboratory.
Y. M. Saveliev   +3 more
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

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