Results 51 to 60 of about 321 (249)

Optimization research and application of lifting technology of electric submersible reciprocating pump

Youqicang pingjia yu kaifa, 2019
Electric submersible reciprocating pump is a rodless oil extraction device for low-permeability reservoirs. As one of the new technologies of high efficiency and energy saving lifting, its application scale is expanding year by year.
Qian Kun, Hu Wenrui, Sun Yanan, Shi Guochen, Du Weishan, Li Jinan, Ge Weitao, He Yan   +7 more
doaj  

Cellularized Skin Substitute Bioengineering for Regenerative Medicine: Cell Sources, Culture Strategies, and Transition Toward Defined, Xeno‐Free Culture Systems

Advanced Healthcare Materials, EarlyView.
Advances in cell sources, bioengineering, and manufacturing are reshaping the design of skin substitutes. This review highlights emerging strategies driving skin tissue engineering and discusses their potential to enable safer, reproducible, and clinically accessible skin substitutes for regenerative medicine.
Gilles Lemaître, Marina Trouillas, Tatiana Vinasco‐Sandoval, Cécile Giordano, Alexandre G. Lellouch, Walid Rachidi, Jean‐Jacques Lataillade, Nicolas O. Fortunel   +7 more
wiley   +1 more source

Hydrogel‐Based Airway‐on‐Tube With Perfusable Endothelial Lumen and Outward Epithelialization

Advanced Materials, EarlyView.
A hydrogel‐based airway‐on‐tube platform featuring a perfusable endothelial lumen and outward epithelialization is presented. The system supports primary human bronchial epithelial and lung microvascular endothelial coculture under air‐liquid interface conditions.
Ali Doryab, Jack F. Murphy, Michael Bartolf‐Kopp, Jenny C‐C Hsin, Alice Chernaik, Frank McCaughan, Yan Yan Shery Huang, Tomasz Jungst, Jürgen Groll   +8 more
wiley   +1 more source

DOWNHOLE REACTIVE POWER COMPENSATION

Известия высших учебных заведений: Нефть и газ, 2015
The authors provide a method for compensation of the reactive power inside a well. In the environment Matlab/ Simylink a model was developed of the site of the electrical centrifugal pump unit power supply from the transformer substation. A comparison is
V. A. Kopyrin, V. A. Iordan, O. V. Smirnov   +2 more
doaj   +1 more source

HEAT EXCHANGE DEVICE FOR SUBMERSIBLE ELECTRIC MOTORS OF ELECTRIC CENTRIFUGAL PUMP UNITS

Известия Томского политехнического университета: Инжиниринг георесурсов, 2021
The relevance of the device development is caused by the need to solve the problems related to the cooling of high-speed valve and asynchronous submersible motors. The development of efficient cooling systems for such engines when using high-speed engines in low-flow wells is especially urgent, since the power of heat sources increases sharply ...
Roza I. Vakhitova, Kamil R. Urazakov, Elena B. Dumler   +2 more
openaire   +1 more source

Programming of Complex Magnetic Profiles Enforced by 4D Printed Magnetic LCE Actuators

Advanced Materials, EarlyView.
A 4D printing‐enabled magnetic programming strategy is introduced in which thermally actuated liquid crystal elastomers are magnetized in their target shape to encode complex three‐dimensional magnetic profiles. The resulting actuators achieve multistate shape morphing and programmable locomotion under low magnetic fields, without requiring specialized
Erick R. Espíndola‐Pérez, Rahul Goyal, Lovish Gulati, María López‐Valdeolivas, Peer Fischer, Carlos Sánchez‐Somolinos   +5 more
wiley   +1 more source

Dynamic Modeling and Simulation of Deep Geothermal Electric Submersible Pumping Systems

Energies, 2017
Deep geothermal energy systems employ electric submersible pumps (ESPs) in order to lift geothermal fluid from the production well to the surface. However, rough downhole conditions and high flow rates impose heavy strain on the components, leading to ...
Julian Kullick, Christoph M. Hackl
doaj   +1 more source

Unveiling Exsolution‐Induced Giant Electronic and Magnetic Property Changes in Non‐Stoichiometric Titanate Perovskite Thin Films

Advanced Materials, EarlyView.
A giant insulator to metal transition and emergent superparamagnetism are revealed by nanoparticle exsolution in non‐stoichiometric titanate perovskite thin films. By combining transport, synchrotron spectroscopy, and first‐principles calculations, this work reveals how defect reconfiguration and lattice reconstruction fundamentally reshape electronic ...
Sungil Kim, June Ho Lee, Yaolong Xing, Dongchang Kim, Haeseong Jeong, Mongjun Jeong, Manuel Valvidares, Stuart S. P. Parkin, Sang Ho Oh, Donghwa Lee, Hyojin Yoon, Hyeon Han   +11 more
wiley   +1 more source

Lead Halide Perovskite Photoelectrocatalysis

Advanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

A Geometrically Transient Platform for Bioelectronic Implants

Advanced Materials, EarlyView.
Minimally invasive bioelectronic implants often compromise performance for smaller sizes. To resolve this optimization dilemma, a wireless bioelectronic implant with a transient geometry is introduced (MiFi). The origami‐inspired device miniaturizes up to sixfold for syringe insertion and autonomously unfolds post‐implantation.
Selin Olenik, John D. Goodwin, Atharv Naik, Philip Coatsworth, Ioi Chit Cheung, Farbod Amirghasemi, Anies Sohi, Ehsan Abedi, Tayeb Tadlaoui, Maral P. S. Mousavi, Andriy S. Kozlov, Victoria Salem, Andrew S. Cowburn, Firat Guder   +13 more
wiley   +1 more source