Results 101 to 110 of about 406,042 (279)

Resonance Frequency of Optical Microbubble Resonators: Direct Measurements and Mitigation of Fluctuations

open access: yesSensors, 2016
This work shows the improvements in the sensing capabilities and precision of an Optical Microbubble Resonator due to the introduction of an encaging poly(methyl methacrylate) (PMMA) box.
Alessandro Cosci   +10 more
doaj   +1 more source

Offline Chemical Wash for Internal Fouled Multistage Pump [PDF]

open access: yes, 2022
Case StudiesHigh pressure lean amine pump performance dropped within a span of about 1 month due to internal fouling. Fouling was caused by accumulation of iron sulphide.
Tinagaran, Ng, Wei Sing
core  

Lab‐in‐a‐Tube System Integrating Hierarchically Wrinkled Electrodes and DNAzyme‐Functionalized Beads for Diagnosis of Clostridioides difficile Infection

open access: yesAdvanced Materials, EarlyView.
The point‐of‐care diagnosis of Clostridioides difficile infection remains challenging due to reliance on slow culture and amplification‐based methods. A lab‐in‐a‐tube electrochemical biosensor integrating DNAzymes, antifouling magnetic beads, and a hierarchically structured flow cell enables amplification‐ and culture‐free detection directly in stool ...
Survanshu Saxena   +10 more
wiley   +1 more source

Improving Mean Time Between Pump Failures [PDF]

open access: yes, 2018
Discussion GroupMechanical/Metallurgical design requirements for pump components Design and installation for pump baseplates Proper hydraulic fit of pumps Mechanical alignment targets/procedures Pump repair ...
Bruck, Morg   +3 more
core   +1 more source

Pump Vibrations

open access: yes, 1992
Tutorialpg. 137The reliability and failure mechanisms of high energy pumps used in the utilities industry and the high suction specific speed pumps used in the hydrocarbon processing industry show surprising parallels as to root causes.
Nelson, William E.
core   +1 more source

Inductively Expandable Supraparticles as Microscopic Force Generators for Remote Mechanical Actuation

open access: yesAdvanced Materials, EarlyView.
This study demonstrates the combination of magnetic nanoparticles and functional blowing agents into supraparticles. Upon induction heating, they actuate via rapid gas generation or extensive volume expansion. These supraparticles lift up to 25 000 times their own mass and rapidly open cured epoxy resins, providing a versatile strategy for fast micron ...
Leoni Luthardt   +3 more
wiley   +1 more source

Atom–Cluster Synergy in Scalable Fe–Ru Dual‐Site Architectures Accelerates Alkaline Hydrogen Evolution

open access: yesAdvanced Materials, EarlyView.
A mechanochemically synthesized dual‐site electrocatalyst (RuNC@Fe1NC) accelerates alkaline hydrogen evolution via atomic‐level spatial decoupling. Oxophilic Fe single atoms effectively dissociate water, while adjacent Ru nanoclusters rapidly recombine hydrogen.
Jae‐Hoon Baek   +9 more
wiley   +1 more source

Bioinspired Mechanosensitive Organic Artificial Neuron With Programmable Excitatory and Inhibitory Responses via Nonlinear Mechano‐Electrochemical Coupling

open access: yesAdvanced Materials, EarlyView.
Organic artificial neurons couple mechanical deformation and ionic environments through nonlinear mechano‐electrochemical dynamics. Mechanical strain and electrolyte concentration reshape their nonlinear electrical characteristics, programming excitatory or inhibitory spiking responses that mimic mechanosensitive biological neurons and enable ...
Rassen Boukraa   +4 more
wiley   +1 more source

Investigating & Improving the Drooping Curve of A Two-Stage Feed Pump [PDF]

open access: yes, 2018
TutorialsA two-stage between-bearing pump of the upgraded material was supplied to replace the existing machine. The pump utilized a higher number of impeller blades to obtain higher efficiency at its design point, but exhibited a drooping head-flow ...
Tzuu Bin, Ng, Bin Ng, Tzuu
core  

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