Results 111 to 120 of about 32,518 (302)

Optimization Design of Beam Pumping Unit Based on Response Surface Method

open access: yes, 2011
An optimization design method is developed for the beam pumping unit, which is based on the API-RP-11L design criteria. The Response Surface Method is used to calculate the structural reliability of the beam pumping unit.
Tao Yan, Xiu Juan Yang, Xiang Zhen Yan
core   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

Balance Diagnosis and Adjustment of Pumping Unit Based on Indicator Diagram

open access: yesShiyou jixie, 2018
Considering the effect of unbalance of pumping unit on the safety and efficiency of well production systems, the mathematical relationships between the polished rod load and the motor output power of the 4 pumping units are derived.
Zhang Ruichao   +5 more
doaj  

Laughlin charge pumping from interplay of chiral Dirac and chiral Majorana modes

open access: yesPhysical Review Research
Laughlin charge pumping has provided critical insights into the topological classification of individual materials, but remains largely unexplored in topological junctions.
Zhan Cao, Yang Feng, Zhi-Hai Liu, Ke He
doaj   +1 more source

ALGORITHM FOR SELECTING A PUMP AND A DIESEL INTERNAL COMBUSTION ENGINE WHEN ASSEMBLING A PUMPING UNIT FOR RECLAMATION PURPOSES

open access: yesМелиорация и гидротехника
Purpose: to develop an algorithm for arranging a pumping unit for irrigation purposes taking into account the energy-saving operating mode of a diesel internal combustion engine and with the ability to adjust head and rate specifications in a wide ...
Oleg V. Voevodin, Anton L. Kozhanov
doaj   +1 more source

Optimal Design of Main Parameters for Pumping Unit of Automotive Power Steering Units

open access: yes, 2011
We should clean the internal residual hydraulic oil after the automotive power steering units are carried out performance test according to the requirements.
Guang Ming Li, Kai Cheng, Li Yan
core   +1 more source

Bacteria‐Responsive Nanostructured Drug Delivery Systems for Targeted Antimicrobial Therapy

open access: yesAdvanced Materials, EarlyView.
Bacteria‐responsive nanocarriers are designed to release antimicrobials only in the presence of infection‐specific cues. This selective activation ensures drug release precisely at the site of infection, avoiding premature or indiscriminate release, and enhancing efficacy.
Guillermo Landa   +3 more
wiley   +1 more source

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

open access: yesAdvanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim   +17 more
wiley   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Hydraulic impulsive drive of membrane pumping unit for high-viscosity, corrosive and abrasive-carrying mediums pumping

open access: yes, 2010
Дисертація присвячена розробці та дослідженню гідроімпульсного привода мембранного насосного агрегату для перекачування високов’язких, агресивних та абразивовмісних середовищ.
Петрусь, Віталій Володимирович   +2 more
core  

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