Results 81 to 90 of about 5,096,456 (382)

Breathing fresh air into the debate: Ventilators and the United States' intellectual property problem

open access: yesHealth Policy Open, 2022
In 2006, the U.S. federal government launched a project to create a cheap, easily produced, and easy to use ventilator that could be stored for long periods of time for pandemic response. Despite successful funding and contracts with two separate medical
Theora W. Tiffney   +2 more
doaj  

Combining Metal Additive Manufacturing and Casting Technology: High Performance Cooling Channels for Electric Powertrain Components

open access: yesAdvanced Engineering Materials, EarlyView.
When realized as inserts in high‐pressure die casting, aluminum cooling channels for electric powertrain components and similar applications typically require a stabilizing filler to survive the process. The present study investigates relinquishing this filler using additively manufactured inserts promising performance improvements.
Dirk Lehmhus   +9 more
wiley   +1 more source

Mesoporous Silica Microspheres by Super‐Fast Alkaline Etching of Micrometer‐Sized Stöber Particles

open access: yesAdvanced Engineering Materials, EarlyView.
Microscale silica particles are prepared along with a modified, scalable Stöber synthesis using the continuous addition of tetraethoxy silane to an ethanolic solution of ammonia with KCl. Etching with hydroxide ions at 95 °C gave porous analogs within minutes. Monodisperse particles are isolable in high yield after precipitation in ethanol.
Adrian Vaghar   +2 more
wiley   +1 more source

Shutdown of the Federal Government: Causes, Processes, and Effects [PDF]

open access: yes, 2013
[Excerpt] When federal agencies and programs lack appropriated funding, they experience a funding gap. Under the Antideficiency Act, they must cease operations, except in certain emergency situations or when law authorizes continued activity.
Brass, Clinton T
core   +4 more sources

States’ Evolving Role in the Supplemental Nutritional Assistance Program [PDF]

open access: yes, 2019
States have always been crucial to the Supplemental Nutrition Assistance Program (SNAP, formerly food stamps). Even though the federal government has paid virtually all the program’s benefit costs, state administration has always been indispensable for ...
Dehavenon   +8 more
core   +2 more sources

Measuring Organizational Evaluation Capacity in the Canadian Federal Government

open access: yesCanadian Journal of Program Evaluation, 2013
: The development of organizational evaluation capacity has emerged in recent years as one mechanism through which evaluators can extend their influence and foster evaluation utilization.
I. Bourgeois   +3 more
semanticscholar   +1 more source

In Situ Formation of a Melt‐Solid Interface Toward Stable Oxygen Reduction in Protonic Ceramic Fuel Cells

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
Protonic ceramic fuel cells offer a promising route to generate power efficiently but face critical challenges in achieving industrially viable activity and stability at their cathodes in CO2‐containing air. This report proposes a new cathode material design strategy to enable the cathode to be both catalytically active and CO2 tolerant through the ...
Desheng Feng   +14 more
wiley   +1 more source

Thermally Induced Gelling Systems Based on Patchy Polymeric Micelles

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
A novel strategy to design thermally induced gelling systems with tunable material properties is reported. Polymeric mixed‐shell micelles displaying multiple thermosensitive patchy domains formed hydrogels by assembling into well‐entangled worm‐like network structures upon heating to body temperature. The patchy micelle design significantly affects the
Binru Han   +9 more
wiley   +1 more source

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