Results 41 to 50 of about 1,905,628 (285)

Submersible direct-drive progressing cavity pump rodless lifting technology

Petroleum Exploration and Development, 2019
Submersible electrical motor direct-drive progressing cavity pump (PCP) rodless lifting was studied to solve the traditional rod-drive pump problems, such as rod-tubing wearing, low efficiency and short running time.
Zhongxian HAO, Shijia ZHU, Xiaohan PEI, Peng HUANG, Zheng TONG, Benyuan WANG, Deyin LI   +6 more
doaj   +1 more source

An Integral Battery Charger with Power Factor Correction for Electric Scooter [PDF]

, 2009
This paper presents an integral battery charger for an electric scooter with high voltage batteries and interior-permanent-magnet motor traction drive.
E. Armando, P. Guglielmi, Paolo Guglielmi, Pellegrino, Gian-Mario Luigi, Guglielmi, Paolo, Gianmario Pellegrino, Armando, Eric Giacomo, Eric Armando, PELLEGRINO, GIAN - MARIO LUIGI, G. Pellegrino   +9 more
core   +2 more sources

Bioinspired Co‐Assembly Enables Multiscale Architected Hydrogels for 3D Printing With Integrated Antibacterial and Bioactive Functions

Advanced Functional Materials, EarlyView.
A multicomponent supramolecular hydrogel integrating cell‐adhesive and antibacterial peptides within an alginate‐cellulose nanofibril matrix is developed. Peptide co‐assembly simultaneously strengthens the hydrogel network, improves extrusion printability, and imparts cell‐adhesive and antibacterial functions, offering a versatile platform for ...
Mor Tsuriano‐Zernichov, Francesca Netti, Sigal Rencus‐Lazar, Moran Aviv, Lihi Adler‐Abramovich   +4 more
wiley   +1 more source

Justification of the active method of protecting the insulation of submersible electric motors [PDF]

E3S Web of Conferences, 2019
The article provides an analysis of the properties of the working environment of submersible electrical equipment. The influence of the operating parameters of electrical equipment on the physical properties of the fluid (its electrically conductive properties) is considered.
Trushkin V. A., Churlyaeva O. N., Kozichev R. V.   +2 more
openaire   +2 more sources

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

Advanced Functional Materials, EarlyView.
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash, Jihun Lee, J. Scott VanEpps, Sungmin Nam, Jouha Min   +4 more
wiley   +1 more source

Submersible asynchronous electric motors with improved performance characteristics

Вестник Пермского национального исследовательского политехнического университета. Геология. Нефтегазовое и горное дело, 2016
Magnetic field in the clearance of submersible asynchronous electric motors of electrical submersible pumps due to little number of stator slots has strongly marked stepped character of distribution. Such magnetic field includes wide range of highest spatial harmonics with significant amplitudes that negatively affect on work and operating parameters ...
Evgenii Beliaev, Pavel Tcylev, Irina Shchapova, Vladislav Shchapov   +3 more
openaire   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

Advanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li, Jun Xu, Dezhong Xu, Zhaohui Zhang, Jiyi Li, Daxian Cao, Kefu Chen, Mizi Fan   +7 more
wiley   +1 more source

Average flow rate effect on the reliability of submersible electric motors of borehole pumping units in uranium mining by the in-situ leaching method

Известия Томского политехнического университета: Инжиниринг георесурсов
Relevance. The reliability of borehole pumping units used for uranium in-situ leaching mining is largely determined by the performance of submersible electric motors.
Alexander A. Efremov, Mikhail D. Noskov, Alexander A. Filipas, Alexander A. Shchipkov   +3 more
doaj   +1 more source

Photo‐Degradable Polyester Networks and Multi‐Photon Printed Objects Based on Cyclic Ketene Acetals

Advanced Functional Materials, EarlyView.
The current work introduces a photoreversible polyester network derived from radical ring‐opening polymerization of cyclic ketene acetals. It combines photoreversible cross‐linking with initiator‐free multi‐photon printing. Reversible network formation, tunable mechanical properties, and selective degradation highlight its potential as a versatile ...
Till Meissner, Julian Fanelli, Vinh Xuan Truong, Rob Jones, Jens Gaitzsch, Christopher Barner‐Kowollik   +5 more
wiley   +1 more source

Rancang Bangun Motor Listrik Submersible pada Aplikasi Bow Thruster Kapal

Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2017
This paper proposes the design of submersible electric motors for vessel's bow thruster. The advantages of the proposed design in comparison with a conventional electric motor are smaller diameter, without gear driven, better efficiency, low noise level,
Cuk Supriyadi Ali Nandar, Asep Andi Suryandi, Dewi Rianti Mandasari, Katri Yulianto, Sumardi   +4 more
doaj   +1 more source