Results 21 to 30 of about 16,459 (288)

Review of centrifugal liquid-liquid chromatography using aqueous two-phase solvent (ATPS) systems: Its scale-up and prospects for the future production of high-value biologics [PDF]

open access: yes, 2007
The future challenges in bioprocessing include developing new downstream processes for the purification and manufacture of the protein based medicines of the future to relieve the predicted bottleneck being produced by increasingly high titres from ...
Sutherland, I A
core  

Gram‐Scale Production of Iron Oxide Rubik‐Cube Nanoparticles: New Tools for the Clinical Translation of Magnetic Hyperthermia and Magnetic Particle Imaging

open access: yesAdvanced Functional Materials, EarlyView.
This work reports the first gram‐scale solvothermal synthesis of ‘Rubik's cube’ nanoparticles—cubic, dendritic multicore structures with tuneable sizes and exceptional magnetic heating performance. Featuring iron oxide single‐domain character, with low coercivity fields, high magnetization, and strong MPI signals, they enable viscosity‐independent ...
Giusy M. R. Rizzo   +12 more
wiley   +1 more source

Damage to flexible pipes of coiled tubing equipment due to corrosion and fatigue: methods and approaches for evaluation [PDF]

open access: yes, 2017
Purpose. To propose an engineering approach for evaluating surface corrosion fatigue of flexible pipes of coiled tubing equipment, on the basis of the generalized data about corrosion fatigue behaviour of structural steels and ana-lysis of the existing ...
Syrotyuk, A, Vytyaz, O, Ziaja, J
core   +1 more source

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

open access: yesAdvanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler   +3 more
wiley   +1 more source

Buckling Load of Bending Coiled Tubing below the Injector Head

open access: yesShiyou jixie, 2018
In the application of coiled tubing in high-pressure oil and gas wells, the buckling load of the coiled tubing between the injector head and the stripper is an important parameter to determine the construction safety.
Zhu Zhaoliang   +4 more
doaj  

Current Status of Research on Composite Coiled Tubing and its Mechanical Properties

open access: yesShiyou jixie, 2021
Composite coiled tubing is a fiber reinforced composite pipe. Compared with steel coiled tubing, it has the advantages of corrosion resistance and fatigue resistance, especially, it has a good effect in replacing steel coiled tubing in corrosive wellbore
Wang Li, Ma Weiguo, Zhang Fang
doaj  

The Cuttlebone Blueprint for Multifunctional Metamaterials: Design Taxonomy, Functional Decoupling, and Future Horizons

open access: yesAdvanced Functional Materials, EarlyView.
Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley   +1 more source

Development and Application of a Coiled Tube Fatigue Life Prediction Software

open access: yesShiyou jixie, 2020
During operation, the life of coiled tubing will be shortened due to complex cyclic load effect, corrosion, mechanical damage, manufacturing defect and faulty operation etc.
Liu Shaohu   +5 more
doaj  

Анализ эффективности освоения скважин закачкой газообразного азота с использованием установки гибкой насосно-компрессорной трубы после гидроразрыва пласта на Южно-Приобском нефтяном месторождении (ХМАО) [PDF]

open access: yes, 2015
Объект исследования - колтюбинговые технологии. Цель выпускной квалификационной работы - анализ эффективности освоения скважин закачкой газообразного азота с использованием установки ГНКТ после ГРП на «А» нефтяном месторождении.
Костадинов, Никита Константинович
core  

Amyloidogenic Peptide Fragments Designed From Bacterial Collagen‐like Proteins Form Hydrogel

open access: yesAdvanced Functional Materials, EarlyView.
This study identified amyloidogenic sequence motifs in bacterial collagen‐like proteins and exploited these to design peptides that self‐assemble into β‐sheet fibers and form hydrogels. One hydrogel supported healthy fibroblast growth, showing promise for biocompatible materials. Our work demonstrates that bacterial sequences can be harnessed to create
Vamika Sagar   +5 more
wiley   +1 more source

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