Results 31 to 40 of about 21,215 (229)

Carbon Nanotubes (CNTs) Reinforced CoCrMoNbTi0.4 Refractory High Entropy Alloy Fabricated via Laser Additive Manufacturing: Processing Optimization, Microstructure Transformation and Mechanical Properties

open access: yesCrystals, 2022
Refractory high-entropy alloys (RHEAs) exhibit outstanding softening resistance and thermal stability at elevated temperatures. Unfortunately, poor ductility at room temperature has remained the critical issue for their processability and practical ...
Xuyang Ye   +7 more
doaj   +1 more source

Rhea: a transparent and modular R pipeline for microbial profiling based on 16S rRNA gene amplicons [PDF]

open access: yesPeerJ, 2017
The importance of 16S rRNA gene amplicon profiles for understanding the influence of microbes in a variety of environments coupled with the steep reduction in sequencing costs led to a surge of microbial sequencing projects.
Ilias Lagkouvardos   +3 more
doaj   +2 more sources

Serosurvey of selected avian pathogens in brazilian commercial Rheas (Rhea americana) and Ostriches (Struthio camelus)

open access: yesBrazilian Journal of Poultry Science, 2009
Ratite farming of has expanded worldwide. Due to the intensive farming methods used by ratite producers, preventive medicine practices should be established.
OC de Freitas Neto   +5 more
doaj   +1 more source

‘I am always crying on the inside’: a qualitative study on the implications of infertility on women’s lives in urban Gambia

open access: yesReproductive Health, 2018
Background There is an increasing awareness that infertility in Sub-Saharan Africa constitutes a severe social and public health problem. Few of the existing studies on infertility explicitly take into account the differences between women.
Susan Dierickx   +4 more
doaj   +1 more source

Long time data series and data stewardship reference model

open access: yesBig Earth Data, 2020
The need for accessing historical Earth Observation (EO) data series strongly increased in the last ten years, particularly for long-term science and environmental monitoring applications.
Mirko Albani, Iolanda Maggio
doaj   +1 more source

Enhanced irradiation-resistance in NbMoTaW refractory high-entropy alloy via rhenium addition

open access: yesHeliyon
The He2+ irradiation-induced mechanical and microstructural evolutions were studied in Nb25Mo25Ta25W25 (at.%) and Nb20Mo20Ta20W20Re20 (at.%) refractory high-entropy alloys (RHEAs) films, respectively.
Li Huang   +8 more
doaj   +1 more source

Microstructural and crystallographic evolution of palaeognath (Aves) eggshells

open access: yeseLife, 2023
The avian palaeognath phylogeny has been recently revised significantly due to the advancement of genome-wide comparative analyses and provides the opportunity to trace the evolution of the microstructure and crystallography of modern dinosaur eggshells.
Seung Choi   +5 more
doaj   +1 more source

Tuning microstructure and mechanical and wear resistance of ZrNbTiMo refractory high-entropy alloy films via sputtering power

open access: yesFrontiers in Materials, 2023
Introduction: Recently, great efforts have been dedicated to tailoring the microstructure of the RHEA films to further optimize the performance of the films.
Xinyu Liu   +4 more
doaj   +1 more source

Second International conference on robotics and associated high-technologies and equipment for agriculture and forestry: new trends in mobile robotics, perception and actuation for agriculture and forestry (RHEA-2014) [PDF]

open access: yes, 2014
These RHEA-2014 proceedings, therefore, put together all of the papers presented and discussed at the conference.The availability of new technology — global positioning systems (GPS), geographic information systems (GIS), sensors, the automation of ...
RHEA Consortium, Reynolds, Chris
core   +1 more source

Sustainable Materials Design With Multi‐Modal Artificial Intelligence

open access: yesAdvanced Science, EarlyView.
Critical mineral scarcity, high embodied carbon, and persistent pollution from materials processing intensify the need for sustainable materials design. This review frames the problem as multi‐objective optimization under heterogeneous, high‐dimensional evidence and highlights multi‐modal AI as an enabling pathway.
Tianyi Xu   +8 more
wiley   +1 more source

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