Results 111 to 120 of about 7,648 (314)

New Advances of Degradable Magnesium‐Based Metal Biomaterials in the Field of Orthopedics

open access: yesRare Metals, EarlyView.
ABSTRACT Based on their outstanding biomechanical properties and superior osteogenic activity, magnesium (Mg) and its alloys have been extensively investigated for their biocompatibility and therapeutic efficacy in treating fractures and bone defects.
Jia‐Nan Yu   +8 more
wiley   +1 more source

Power Sharing Control of Islanded AC Microgrid Considering Droop Control and Virtual Impedance

open access: green, 2020
Ariel Villalón   +5 more
openalex   +2 more sources

Autonomous Control of Electric Vehicles Using Voltage Droop

open access: yesEnergies
The surge in electric vehicles (EVs) in Denmark challenges the country’s residential low-voltage (LV) distribution system. In particular, it increases the demand for home EV charging significantly and possibly overloads the LV grid. This study analyzes the impact of EV charging integration on Denmark’s residential distribution networks.
Hanchi Zhang   +4 more
openaire   +3 more sources

Step‐Ladder Bioprinting to Align Collagen Fibers for Anisotropic Tissue Fabrication

open access: yesSmall, EarlyView.
The step‐ladder printing platform includes successive segments of channels with varying widths in a custom barrel design. This design allows for improved anisotropy of collagen fibers during extrusion. To demonstrate its effectiveness, corneal constructs with high transparency and shape fidelity, as well as articular cartilage constructs, displaying ...
Ilayda Namli   +8 more
wiley   +1 more source

Data informed performance assessment and structural health monitoring for existing and historical concrete structures

open access: yesStructural Concrete, EarlyView.
Abstract Our generation inherits this cultural heritage of historic material and historic reinforced concrete structures and thus bears a certain responsibility to preserve these historic buildings with the help of the new technologies of lifetime management, conservation concepts and the new digitalization as well as the emerging safety concepts of ...
A. Strauss
wiley   +1 more source

An Improved Secondary Control Strategy for Dynamic Boundary Microgrids toward Resilient Distribution Systems

open access: yesEnergies
In order to achieve the flexible and efficient utilization of distributed energy resources, microgrids (MGs) can enhance the self-healing capability of distribution systems.
Yijun Wang   +8 more
doaj   +1 more source

Utilization of cellulose nanocrystal as a bio‐based material and nanosilica in cement‐based systems: A comparative study

open access: yesStructural Concrete, EarlyView.
Abstract Cellulose nanocrystals (CNCs), increasingly utilized in cement‐bound materials, offer improved material properties and enhanced sustainability due to their bio‐based origin. Nanosilica (NS), known for its high reactivity and refinement of cement microstructure, also significantly impacts cement performance.
Ali Satar Jaber Al‐Askary   +2 more
wiley   +1 more source

Punching shear in flat slab systems – Experimental quantification of unconsidered system influences

open access: yesStructural Concrete, EarlyView.
Abstract Due to the demand for slender and functional buildings, flat slabs are a frequently used load‐bearing element in buildings. However, the concentrated load introduction at the slab‐column connection is often the governing detail in design due to punching shear failure.
Matthias Kalus   +3 more
wiley   +1 more source

Multi-segment droop control and optimal parameter setting strategy of wind turbine for frequency regulation

open access: yesInternational Journal of Electrical Power & Energy Systems
Traditionally, virtual inertia is used as the control strategy for wind turbines when participating in frequency regulation. However, it has inherent defects in measurement error amplification due to the frequency differential.
Haishu Gao   +5 more
doaj   +1 more source

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