Results 31 to 40 of about 1,292,395 (359)

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva   +9 more
wiley   +1 more source

Staff perspectives on the feasibility of the person-centered care assessment tool (PCC-at) in HIV treatment settings in Ghana: a mixed-methods study

open access: yesHIV Research & Clinical Practice
Person-centered care (PCC) aims to improve client’s experiences in HIV care while advancing outcomes. This study team developed the PCC assessment tool (PCC-AT) to assess PCC service performance in HIV treatment settings in Ghana.
Jessica E. Posner   +6 more
doaj   +1 more source

Assessment of the impact of training tools on healthcare workers for PCV introduction in Maharashtra, India during the COVID-19 pandemic

open access: yesVaccine: X
Background: Pneumococcal Conjugate Vaccine (PCV) is a costly vaccine and poor and vulnerable communities can't afford it in private sector. The Indian government introduced the Pneumococcal Conjugate Vaccine into the Universal Immunization during the ...
Syed Quadri   +9 more
doaj   +1 more source

Snow metamorphism: a fractal approach

open access: yes, 2010
Snow is a porous disordered medium consisting of air and three water phases: ice, vapour and liquid. The ice phase consists of an assemblage of grains, ice matrix, initially arranged over a random load bearing skeleton.
A. D. Frolov   +7 more
core   +1 more source

A review of Central Asian glaciochemical data [PDF]

open access: yes, 1990
The glaciers of central Asia provide suitable locations from which to recover continuous, high-resolution glaciochemical records on a continental scale.
Mayewski, Paul A   +2 more
core   +3 more sources

Anti‐Slip Material‐Based Strategies and Approaches

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani   +3 more
wiley   +1 more source

Micromechanical modeling of snow failure [PDF]

open access: yesThe Cryosphere, 2020
Dry-snow slab avalanches start with the formation of a local failure in a highly porous weak layer underlying a cohesive snow slab. If followed by rapid crack propagation within the weak layer and finally a tensile fracture through the slab, a slab ...
G. Bobillier   +7 more
doaj   +1 more source

Simulations of snow distribution and hydrology in a mountain basin [PDF]

open access: yes, 1999
We applied a version of the Regional Hydro‐Ecologic Simulation System (RHESSys) that implements snow redistribution, elevation partitioning, and wind‐driven sublimation to Loch Vale Watershed (LVWS), an alpine‐subalpine Rocky Mountain catchment where ...
Band, Larry E.   +6 more
core   +1 more source

Trends in wintertime climate in the northeastern United States: 1965–2005 [PDF]

open access: yes, 2008
Humans experience climate variability and climate change primarily through changes in weather at local and regional scales. One of the most effective means to track these changes is through detailed analysis of meteorological data.
Braswell, Rob   +3 more
core   +2 more sources

Data‐Driven Bulldozer Blade Control for Autonomous Terrain Leveling

open access: yesAdvanced Robotics Research, EarlyView.
A simulation‐driven framework for autonomous bulldozer leveling is presented, combining high‐fidelity terramechanics simulation with a neural‐network‐based reduced‐order model. Gradient‐based optimization enables efficient, low‐level blade control that balances leveling quality and operation time.
Harry Zhang   +5 more
wiley   +1 more source

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