Results 81 to 90 of about 9,704 (210)

THE SUBMODELING METHOD ANALYSIS ON POST-BUCKLING WEAR PREDICTION OF COMPRESSION COILED TUBING IN WELLBORE (MT)

open access: yesJixie qiangdu, 2023
Aiming at the problem of aggravated wear of coiled tubing caused by buckling in underground, a contact wear model between compression buckling coiled tubing and wellbore was established based on submodel method.
LI Gang   +5 more
doaj  

Bending mechanics of cylindrical skins for morphing aerospace applications

open access: yesMaterials & Design, 2020
Shape-changing aerospace structures explore the trade-offs between aerodynamic performance and actuation efficiency. Herein, a morphing cylinder is optimized to minimize both its work to actuate in bending as well as radial deviations.
Wesley A. Chapkin   +6 more
doaj   +1 more source

Dynamic supercoiling bifurcations of growing elastic filaments

open access: yes, 2003
Certain bacteria form filamentous colonies when the cells fail to separate after dividing. In Bacillus subtilis, Bacillus thermus, and cyanobacteria, the filaments can wrap into complex supercoiled structures as the cells grow.
Goldstein, Raymond E.   +2 more
core   +1 more source

Flexible Thin‐Film Heater Composed of Laser‐Induced Graphene and Poly(D, L‐Lactic Acid) with Electro‐ and Photo‐Thermal Properties toward Cancer Thermotherapy

open access: yesAdvanced Electronic Materials, EarlyView.
This study introduces a thin‐film‐type heat‐generating device that uses laser induced graphene (LIG) on a poly(D, L‐lactic) acid film, which realizes both resistance heating by direct current application and photothermal conversion heating by near‐infrared light irradiation.
Masato Saito   +4 more
wiley   +1 more source

Twirling and Whirling: Viscous Dynamics of Rotating Elastica

open access: yes, 1999
Motivated by diverse phenomena in cellular biophysics, including bacterial flagellar motion and DNA transcription and replication, we study the overdamped nonlinear dynamics of a rotationally forced filament with twist and bend elasticity.
A. E. H. Love   +33 more
core   +1 more source

Topological Materials and Related Applications

open access: yesAdvanced Electronic Materials, EarlyView.
This review covers topological materials—including topological insulators, quantum valley Hall and quantum spin Hall insulators, and topological Weyl and Dirac semimetals—as well as their most recent advancements in fields such as spintronics, electronics, photonics, thermoelectrics, and catalysis.
Carlo Grazianetti   +9 more
wiley   +1 more source

CrossMatAgent: AI‐Assisted Design of Manufacturable Metamaterial Patterns via Multi‐Agent Generative Framework

open access: yesAdvanced Intelligent Discovery, EarlyView.
CrossMatAgent is a multi‐agent framework that combines large language models and diffusion‐based generative AI to automate metamaterial design. By coordinating task‐specific agents—such as describer, architect, and builder—it transforms user‐provided image prompts into high‐fidelity, printable lattice patterns.
Jie Tian   +12 more
wiley   +1 more source

Effect of Helical Buckling on Wellhead Height Growth of High Temperature Gas Well under Deepwater Condition

open access: yesShiyou jixie, 2019
Wellhead growth has a significant impact on the safe production of deepwater high temperature oil and gas wells. The traditional prediction model only take into account of the effect of temperature effect and expansion effect on wellhead growth but ...
Shi Xiaolei, Huang Wenjun, Gao Deli
doaj  

Spatial chaos of an extensible conducting rod in a uniform magnetic field

open access: yes, 2009
The equilibrium equations for the isotropic Kirchhoff rod are known to form an integrable system. It is also known that the effects of extensibility and shearability of the rod do not break the integrable structure.
Antman S S   +11 more
core   +1 more source

Evolution of Physical Intelligence Across Scales

open access: yesAdvanced Intelligent Discovery, EarlyView.
By following the evolution of physical intelligence across scales, this article shows how intelligence arises from materials, structures, physical interactions, and collectives. It establishes physical intelligence as the evolutionary foundation upon which embodied intelligence is built.
Ke Liu   +7 more
wiley   +1 more source

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