Results 121 to 130 of about 312,901 (314)

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

open access: yesAdvanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho   +8 more
wiley   +1 more source

Federal Contracting: Assessments and Citations of Federal Labor Law Violations by Selected Federal Contractors [PDF]

open access: yes, 2010
A letter report issued by the Government Accountability Office with an abstract that begins "In fiscal year 2009, the federal government obligated over $500 billion on government contracts.
United States. Government Accountability Office.
core  

WHEARE, K. C., Federal Government

open access: yesBoletín Mexicano de Derecho Comparado, 1970
Jorge Carpizo
doaj   +1 more source

The federal government and Canada's COVID-19 responses: from 'we're ready, we're prepared' to 'fires are burning'. [PDF]

open access: yesHealth Econ Policy Law, 2022
Allin S   +3 more
europepmc   +1 more source

Nondestructive Testing of Welded Composite Metal Foams

open access: yesAdvanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva   +2 more
wiley   +1 more source

Influence of Surface Finish on the Tribological Performance of AlTiBN Coatings Deposited on Forming Tools

open access: yesAdvanced Engineering Materials, EarlyView.
Aluminum and nitride coatings are used in industry because they are hard, resist wear, and protect against oxidation. Adding boron can improve friction behavior and other properties. This study tests coatings on surfaces with different finishes. Results show smoother surfaces perform better, while rough ones wear faster, although coatings can reduce ...
Adrián Claver   +9 more
wiley   +1 more source

Electronic Government: Federal Agencies Continue to Invest in Smart Card Technology [PDF]

open access: yes, 2004
A letter report issued by the Government Accountability Office with an abstract that begins "Smart cards--plastic devices about the size of a credit card--use integrated circuit chips to store and process data, much like a computer.
United States. Government Accountability Office.
core  

Enhancing Bubble Removal in Geometry‐Optimized Electrodes

open access: yesAdvanced Engineering Materials, EarlyView.
3D‐printed lattice electrodes outperform stochastic foams in alkaline water electrolysis despite 20%–25% lower surface area. Straight flow channels generate Venturi‐like bubble entrainment, suppressing gas accumulation that renders foam interiors electrochemically inactive.
Florian Wiesner   +5 more
wiley   +1 more source

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