Results 91 to 100 of about 1,211,380 (305)

Effects of the position in a stem on the variability of tracheids in spruce (Picea abies /L./ Karst.) with the occurrence of reaction wood

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2010
The paper is aimed at the field of the microscopic structure of wood dealing with the description of the most important anatomic element in softwood – tracheids in a stem with the occurrence of reaction wood.
Vladimír Gryc, Hanuš Vavrčík
doaj   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt   +5 more
wiley   +1 more source

Prehospital randomised assessment of a mechanical compression device in cardiac arrest (PaRAMeDIC) trial protocol [PDF]

open access: yes, 2010
Background Survival after out-of-hospital cardiac arrest is closely linked to the quality of CPR, but in real life, resuscitation during pre-hospital care and ambulance transport is often suboptimal.
Matthew W Cooke   +49 more
core   +2 more sources

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

open access: yesAdvanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler   +4 more
wiley   +1 more source

Biomethane Compression Unit: a Methodological Approach Aimed at Decreasing the Atex Zones Hazardousness

open access: yesChemical Engineering Transactions, 2023
The smart combination of renewable energy sources will be fundamental for developing the energy systems of the future and achieving carbon-neutrality by 2050.
Roberto Lauri
doaj  

Formation of biliodigestive anastomoses with the TiNi compression device

open access: yesActa Biomedica Scientifica, 2018
In our research, we evaluated the effectiveness of the device for the valve compression anastomoses formation in animals. The implant is made of the titanium nickelide alloy (TiNi) in the form of two loops of the TiNi wire. In the area of the bent turns,
G. T. Dambaev   +6 more
doaj   +1 more source

On the Assessment of the Soil Loosening Zone by Compressed Air

open access: yesMachinery and Equipment for Rural Area
Innovative soil cultivation technologies aimed at reducing energy consumption and improving the quality of the deformer action by reducing the tillage depth, using bionically similar working tools, and using compressed air are presented. The depth of penetration of the air flow jet when impacting the surface layer of loamy soil in a state of physical ...
S.I. Starovoitov, N.P. Starovoitova
openaire   +1 more source

Passive Event-Based Extrapolation for Lossy Haptic Data Compression in Bilateral Presence Systems [PDF]

open access: yes, 2009
A new lossy compression method is proposed for haptic (force, velocity) data as exchanged in bilateral telepresence systems. The method is based on the passive extrapolative compression strategy proposed in [1].
Hirzinger, Gerd   +9 more
core   +1 more source

3D‐Printed Titanium Gyroid Scaffold Structure Integrated With Tough Hybrid Materials for Cartilage Replacement

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes a potential device design for joint cartilage replacement. Silica‐polytetrahydrofuran (SiO2‐PolyTHF) hybrids with customizable mechanical properties were developed to mimic the characteristics of a natural meniscus. These were synthesized through a two‐pot sol–gel hybrid process.
Yu‐Chien Lin   +12 more
wiley   +1 more source

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