Results 61 to 70 of about 2,257,055 (338)

Desfibriladores Lumax 540 Heart Failure Monitor

open access: yesJournal of Cardiac Arrhythmias, 2010
Espaço Publicitário 
Biotronik
doaj   +4 more sources

The effect of plant extracts from Solanum nigrum L. and Avena fatua L. on the growth of some weed species and agropathogenic fungi

open access: yesActa Agrobotanica, 2018
Experiments to evaluate 40% and 80% methanol extracts prepared from the aboveground parts of two Solanum nigrum biotypes and from the roots of two Avena sativa biotypes were used to test the growth and development of some weed species and agropathogens ...
Hanna Golebiowska   +3 more
doaj   +1 more source

Air-blown rivulet flow of a perfectly wetting fluid on an inclined substrate [PDF]

open access: yes, 2008
Thin-film flows occur in a variety of physical contexts including, for example, industry, biology and nature, and have been the subject of considerable theoretical research.
Duffy, B.R.   +2 more
core   +1 more source

On the Investigation of a Sustainable Two Step Laser‐Based Surface Treatment for the Functionalization of Additive Manufactured Ti–6Al–4V Components

open access: yesAdvanced Engineering Materials, EarlyView.
This study developed a two‐step laser‐based process for sustainable surface treatment of Ti–6Al–4 V components, combining laser polishing and direct laser interference patterning with ns and ps pulses. Key findings include significant roughness reduction, hierarchical patterning with ps pulses, and improved homogeneity. A cost function is developed for
Ignacio Tabares   +7 more
wiley   +1 more source

Development and Preliminary In Vivo Study of 3D‐Printed Bioactive Glass Scaffolds with Trabecular Architecture

open access: yesAdvanced Engineering Materials, EarlyView.
This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov   +8 more
wiley   +1 more source

Direct Recycling of Cold Work Tool Steel Swarf into New Cutting Disks via Field‐Assisted Sintering

open access: yesAdvanced Engineering Materials, EarlyView.
Through a sintering method known as field‐assisted sintering technology/spark plasma sintering, cold work tool steel swarf can be directly recycled into new cutting disks. This method is capable of densifying the unconventional powder morphology of swarf, and it can also seal grinding contaminants, such as Al2O3, into the steel matrix.
Monica Keszler   +4 more
wiley   +1 more source

Formation of Intermetallic Sludge Phases in AlMgSi Alloys with High Concentrations of Alloying Elements: A Drawback for Increasing Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Sludge phases with brittle fracture behavior form in AlMgSi alloys with high concentrations of alloying elements and negatively influence their ductility. The phase type mainly depends on the Si content and the concentration of minor alloying elements like Fe, Mn, Cr, and Mo strongly influences the number of sludge particles. The need for sustainable
Dominik Steinacker   +3 more
wiley   +1 more source

Particle multiplicities in interactions at √s=540 GeV [PDF]

open access: yesPhysics Letters B, 1983
Abstract We present the charged multiplicity distribution in p p interactions at √s=540 GeV. Moments of the distribution are given, and compared with KNO scaling predictions. An estimate of the particle composition at collider energies is also made.
K. Alpgård   +43 more
openaire   +2 more sources

A molecular formalism of the hydraulic cement deterioration stored at different temperatures and its impact on the mechanical behavior

open access: yesCement
The different temperatures associated with the climatic conditions of each continent and each biome directly influence the exposure properties of each material used in each region, including hydraulic cement, an important material widely employed in ...
H.C.B. Nascimento   +9 more
doaj   +1 more source

Representing a P-complete problem by small trellis automata

open access: yes, 2009
A restricted case of the Circuit Value Problem known as the Sequential NOR Circuit Value Problem was recently used to obtain very succinct examples of conjunctive grammars, Boolean grammars and language equations representing P-complete languages ...
Okhotin, Alexander
core   +3 more sources

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