Results 31 to 40 of about 175,497 (287)

On consistency maintenance in service discovery [PDF]

open access: yes, 2005
Communication and node failures degrade the ability of a service discovery protocol to ensure Users receive the correct service information when the service changes.
Hartel, P.H.   +2 more
core   +5 more sources

Intramolecular Down‐ and Up‐Conversion in Dimeric Tetracene Complexes Centered via Platinum(II) and Palladium(II)

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo   +4 more
wiley   +1 more source

A Comprehensive Review of Solutions and Strategies for Cold Start of Automotive Proton Exchange Membrane Fuel Cells

open access: yesIEEE Access, 2016
Proton exchange membrane fuel cell (PEMFC) can be a significant eco-friendly alternative power source for vehicles. However, under subfreezing conditions, cell degradation and irreversible performance decay can occur because of ice formation and ...
Ali Akrem Amamou   +3 more
doaj   +1 more source

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu   +5 more
wiley   +1 more source

Humidity Control for Front Opening Unified Pod after Opening Its Door in a Mini-Environment

open access: yesApplied Sciences, 2018
Wafers are usually placed in a front opening unified pod (FOUP) while waiting in the line of manufacturing processes; a conventional way for preventing (or removing) contamination is to purge an FOUP with a gas, so as to maintain the cleanliness level ...
Shih-Cheng Hu   +3 more
doaj   +1 more source

Insulation for cryogenic tanks has reduced thickness and weight [PDF]

open access: yes, 1966
Dual seal insulation, consisting of an inner layer of sealed-cell Mylar honeycomb core and an outer helium purge channel of fiber glass reinforced phenolic honeycomb core, is used as a thin, lightweight insulation for external surfaces of cryogenic ...
Dumire, P. E.   +3 more
core   +1 more source

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

open access: yesAdvanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan   +16 more
wiley   +1 more source

Effect of Ingress on Flow and Heat Transfer Upstream and Downstream of a Rotating Turbine Disc

open access: yesAerospace, 2019
Ingress is the penetration of a hot mainstream gas in a turbine annulus through the rim seal into the wheel-space between the rotating turbine disc (the rotor) and the adjacent stationary casing (the stator).
Hui Tang   +6 more
doaj   +1 more source

Pressure-control purge panel for automatic butt welding [PDF]

open access: yes, 1969
Modification of a purge panel for use in an automatic butt weld reduces the drop in pressure between the regulators and the weld head and tube purge fitting.
Lang, E. J., Van Wagner, B. H.
core   +1 more source

Adiponectin and osteocalcin responses to rowing exercise, and the relationship to substrate oxidation in female rowers [PDF]

open access: yes, 2016
This study investigated the effects of acute exercise and menstrual phase on adiponectin and osteocalcin concentrations, and the possible role of these biomarkers in exercise-induced substrate oxidation in rowers. Thirteen female rowers (19.3 ± 2.3 years;
Jürimäe, J   +3 more
core   +1 more source

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