Results 91 to 100 of about 1,825,811 (307)
An overview of design principles and scalable fabrication strategies for multifunctional bio‐based packaging. Radiative cooling films, modified‐atmosphere films/membranes, active antimicrobial/antioxidant platforms, intelligent optical/electrochemical labels, and superhydrophobic surfaces are co‐engineered from material chemistry to mesoscale structure
Lei Zhang +6 more
wiley +1 more source
Participation in adult education: attitude and barriers. [PDF]
In this paper, we control the intention theory of Fishbein and Ajzen (1980) for the participation in an adult education course. Based on the Flemish Eurostat Adult Education Survey, we reveal that participants in adult education have a more positive ...
Boeren, Ellen
core
This review highlights recent advances in electrospun nanofiber‐based triboelectric nanogenerators, emphasizing how material design, fiber architecture, and interface engineering collectively enhance output performance and mechanical durability. Key developments in porous, aligned, core‐shell, and hierarchical nanofibers are discussed alongside ...
MD Fajla Rabbi +3 more
wiley +1 more source
Spacecraft attitude control using a smart control system [PDF]
Traditionally, spacecraft attitude control has been implemented using control loops written in native code for a space hardened processor. The Naval Research Lab has taken this approach during the development of the Attitude Control Electronics (ACE ...
Buckley, Brian, Wheatcraft, Louis
core +1 more source
Fault-tolerant attitude control of the satellite in the presence of simultaneous actuator and sensor faults. [PDF]
Fazlyab AR, Fani Saberi F, Kabganian M.
europepmc +1 more source
Non‐Continuous Iridescent Variable Structural Color Based on Metallic Surface Periodic Structures
This study presents an ink‐free laser nanofabrication technique that generates periodic arched microstructures on titanium surfaces, achieving non‐continuous iridescent dual‐color switching. The ridge and side flanks of these structures possess distinct oxide film thicknesses, enabling angle‐dependent selective reflection of specific wavelengths.
XiangWei Liu +3 more
wiley +1 more source
Attitude ground support system for the solar maximum mission spacecraft [PDF]
The SMM attitude ground support system (AGSS) supports the acquisition of spacecraft roll attitude reference, performs the in-flight calibration of the attitude sensor complement, supports onboard control autonomy via onboard computer data base updates ...
Nair, G.
core +1 more source
Hydrogel‐Based 3D‐Printable Stretchable Pressure Sensor
We present a carbon‐black‐functionalized double‐network granular hydrogel (DNGH) pressure sensor capable of detecting pressures from 200 Pa, equivalent to a light finger touch, up to 500 kPa. The sensor exhibits signal drifts below 3.5% after 800 cycles and response times around 80 ms. Leveraging this broad sensing range, we 3D print this material into
Tianyu Yuan +4 more
wiley +1 more source
Modeling and Simulating the Earth’s Magnetic Field Utilizing the 10th Generation of IGRF and Comparison the Linear and Nonlinear Transformation in order to Use in Satellite Attitude Control [PDF]
Since last decades utilizing satellites in low earth orbits have had increasing tendency. These satellites experience the earth magnetic field due to their low altitude to the earth.
M. Navabi, N. Nasiri
doaj
Attitude computation system [PDF]
An attitude computation facility for the control of unmanned satellite missions is reported. The system's major components include: the ability to transfer the attitude data from the control center to the attitude computer at a rate of 2400 bps; an ...
Werking, R. D.
core +1 more source

