Results 81 to 90 of about 929,539 (310)

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Leak current, even with gigaohm seals, can cause misinterpretation of stem-cell derived cardiomyocyte action potential recordings [PDF]

open access: gold, 2022
Alexander P. Clark   +7 more
openalex   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

Quality Labels in the Food Sector: What do Consumers Want to Know and where are they Looking for Information?

open access: yesInternational Journal on Food System Dynamics, 2016
This study analyzes consumers’ information needs concerning quality labels in the food sector. We analyzed that by using one of the most well-known quality labels for food products in Austria as our research object (the quality label of the organization ...
Oliver Meixner, Rainer Haas
doaj   +1 more source

Analytical prediction of labyrinth-seal-flow-induced arotor excitation forces [PDF]

open access: yes
An analytical method to calculate the rotor excitation forces arising from labyrinth seals is presented. The objective is to model the gas flow through the seal clearance passages and cavities when the rotor is positioned eccentricly relative to the ...
Rajakumar, C., Sisto, E.
core   +1 more source

Self sealing disconnect for tubing forms metal seal after breakaway [PDF]

open access: yes, 1964
Disconnect fittings form a positive metal seal when the fill tube pulls against a metal sleeve when disconnected by force. A specially designed sleeve surrounds the fill tube.
Gernandt, H. H.
core   +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

OSCILLATORY ROLL OF THE ROAD ROLLER WITH A DOUBLE SIDE PLATE

open access: yesВестник СибАДИ, 2019
Introduction. Soil compaction plays a crucial role in the construction of road foundations. The quality of this process is influenced by the type and modes of application of external force from the seal.
S. V. Saveliev   +3 more
doaj   +1 more source

Flow induced force of labyrinth seal [PDF]

open access: yes
Flow induced instability force due to a labyrinth seal is analyzed. An approximate solution is given for the partial differential equation representing the flow in labyrinth seal and it is compared with the finite difference method in order to verify the
Iwatsubo, T., Kawai, R., Motooka, N.
core   +1 more source

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