Results 111 to 120 of about 282,971 (296)

Engineered Protein‐Based Ionic Conductors for Sustainable Energy Storage Applications

open access: yesAdvanced Materials, EarlyView.
Rational incorporation of charged residues into an engineered, self‐assembling protein scaffold yields solid‐state protein films with outstanding ionic conductivity. Salt‐doping further enhances conductivity, an effect amplified in the engineered variants. These properties enable the material integration into an efficient supercapacitor.
Juan David Cortés‐Ossa   +14 more
wiley   +1 more source

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

open access: yesAdvanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi   +4 more
wiley   +1 more source

Co-design personal sleep health technology for and with university students

open access: yesFrontiers in Digital Health
University students often experience sleep disturbances and disorders. Personal digital technologies present a great opportunity for sleep health promotion targeting this population.
Zilu Liang   +3 more
doaj   +1 more source

Supporting localized activities in ubiquitous computing environments [PDF]

open access: yes, 2004
The design of pervasive and ubiquitous computing systems must be centered on users' activity in order to bring computing systems closer to people. Adopting an activity-centered approach to the design of pervasive and ubiquitous computing systems leads ...
Pinto, Helder
core  

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

open access: yesAdvanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu   +3 more
wiley   +1 more source

Drill pipe counting for underground drilling rigs based on miner pose recognition

open access: yesGong-kuang zidonghua
In underground coal mine work sites, moving people and objects may appear between the drill pipes and the monitoring camera, resulting in incomplete video footage and counting omissions of drill pipes.
LIU Jie   +5 more
doaj   +1 more source

Ubiquitous Computing. Summary

open access: yes, 2009
Ubiquitous computing - the complex electronic networking of things that communicate - is considered a promising innovation path worldwide. Intensive R&D activities and political strategies are aimed at promoting practical technologies and applications. Where do we currently stand on the path to the "Internet of Things"?
Friedewald, Michael   +4 more
openaire   +2 more sources

Resolving the Structural Duality of Graphene Grain Boundaries

open access: yesAdvanced Materials, EarlyView.
Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo   +11 more
wiley   +1 more source

Multi-Sensor Context-Awareness in Mobile Devices and Smart Artefacts [PDF]

open access: yes, 2002
The use of context in mobile devices is receiving increasing attention in mobile and ubiquitous computing research. In this article we consider how to augment mobile devices with awareness of their environment and situation as context.
Beigl, Michael   +2 more
core   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

open access: yesAdvanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti   +8 more
wiley   +1 more source

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