Results 101 to 110 of about 1,235,726 (301)

Case Study 5: Replacing Seven Vane Impellers with Eight Vane Impellers Leads to Electric Motor Overload in Nine-Stage Pipeline Pump

open access: yes, 2009
Case StudyThis case study deals with a west Texas pipeline transfer pump with the following design specifications: Byron Jackson 3x6x9E DVMX; BEP at 650 gpm, 3560 rpm, Ns=1220; Originally 9 stages, 2 impellers were removed, utilizing remaining 7 stages ...
Perez, Robert X., Fambrough, Dewane
core   +1 more source

Smart Bioinks for 4D Bioprinting: Requirements, Design, and Applications

open access: yesAdvanced Science, EarlyView.
Smart bioinks empower 4D‐bioprinted constructs to dynamically adapt and remodel in response to stimuli, effectively biomimicking native tissues. Artificial Intelligence (AI) and Machine Learning (ML) play a guiding role in their rational design by optimizing relevant properties.
Shangsi Chen   +11 more
wiley   +1 more source

Failure Model and Intelligent Diagnosis Method of ProcessControl of EPCP

open access: yesShiyou jixie, 2023
The failure diagnosis indicators are featured by nonlinear separable similarity and uncertain relationship between failures and indications.It is difficult to conduct effective failure diagnosis on site for the electric submersible screw pump(EPCP)unit ...
Xie Jianyong   +6 more
doaj  

UNSTEADY VELOCITY PIV MEASUREMENTS AND 3D NUMERICAL CALCULATION COMPATISONS INSIDE THE IMPELLER OF A RADIAL PUMP MODEL [PDF]

open access: yes, 2013
PIV measurements were performed at mid hub section inside the impeller of a vaned diffuser pump model working with air. Several previous papers have already presented part of impeller flow characteristics mainly for vaneless diffuser and near nominal ...
PAVESI, Giorgio   +5 more
core  

PLXDC2 siRNA‐Mediated Intervention Attenuates Microglial Senescence Through cGAS‐STING Signaling

open access: yesAdvanced Science, EarlyView.
PLXDC2 was identified as a microglial target in Parkinson's disease through human and mouse single‐cell analyses. Ferritin‐armed biomimetic nanovesicles delivered PLXDC2 siRNA, deferoxamine, and CeO2 nanoparticles across the blood–brain barrier, reducing cGAS‐STING activation, iron burden, oxidative stress, and senescence in microglia, thereby ...
Heyue Lu   +13 more
wiley   +1 more source

Desing of an observer with real time monitoring speed and load torque for submersible induction motors

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов
Relevance. When operating submersible equipment for oil production in aggressive environments and transferring wells to the cyclic operation mode, a decrease in the service life of the submersible installation for oil production is observed. In the first
Alexander S. Glazyrin   +11 more
doaj   +1 more source

How To Extend The Life Of Your Boiler Feed Pump

open access: yes, 1999
Tutorialpg. 153Six topics that should extend the life of a boiler feedpump will be described in detail. These topics will explore both operational and maintenance techniques that, when instituted, have been shown to extend the useful life of boiler ...
Krafft, Gary, Silvaggio, Joseph A.
core   +1 more source

A Gut‐Brain Axis Underlying Succinate‐Associated Compulsive‐Like Behavior

open access: yesAdvanced Science, EarlyView.
Gut‐derived succinate is associated with an excitatory‐inhibitory imbalance in dmPFC glutamatergic neurons, involving microglial SUCNR1 activation and vagal afferent signaling via upregulated gut 5‐HT4 receptors along the DVC‐CeA‐dmPFC circuit, changes that are linked to excessive compulsive‐like behavior.
Yi Li   +12 more
wiley   +1 more source

Smartphone‐Guided Visible Light Modulation of RSNOs for Antimicrobial Activity via Controlled Nitric Oxide Release

open access: yesAdvanced Science, EarlyView.
A light‐activated catheter insert combines antimicrobial blue light with nitric oxide release to generate complementary oxidative and nitrosative stress, producing potent broad‐spectrum antimicrobial activity. The approach achieves greater than 4‐log reductions in bacterial and fungal viability and significantly reduces Staphylococcus aureus ...
Alexander Bruckmann   +7 more
wiley   +1 more source

Active Oscillations of Elastic Membranes Arising from the Coupling with a Catalytic Reaction

open access: yesAdvanced Science, EarlyView.
Coupling an elastic membrane to a catalytic reaction produces active oscillations that self‐sustain for hours: the membrane cyclically inflates and deflates as the reaction spontaneously activates and deactivates, without external power. Energy release is directly embodied in the oscillation dynamics, opening elasto‐chemical strategies for the physical
Alberto Comoretto   +5 more
wiley   +1 more source

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