Results 81 to 90 of about 32,785 (302)

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger   +10 more
wiley   +1 more source

The behavior and forming performance of vapor hydroforming process of thin aluminum sheets: Numerical and experimental analysis

open access: yesAdvances in Mechanical Engineering, 2022
This paper presents a study on the formability prediction, thickness variation, the influence of the gradient temperature, and prediction damage and failure behavior of aluminum sheets in a hydroforming vapor process through experimental and numerical ...
Leila Jebri   +3 more
doaj   +1 more source

Beam-Induced Damage Mechanisms and their Calculation [PDF]

open access: yes, 2016
The rapid interaction of highly energetic particle beams with matter induces dynamic responses in the impacted component. If the beam pulse is sufficiently intense, extreme conditions can be reached, such as very high pressures, changes of material ...
Bertarelli, A.
core   +3 more sources

A study of johnson-cook modeling under transient shocks

open access: yesJournal of Physics: Conference Series
Abstract In the field of aerospace, high-strain rate problems such as shock explosions have always been a major research challenge. TC4 titanium alloy is a commonly used alloy in aerospace. To study its mechanical properties and the intrinsic model in transient shock environments.
Jie Xue   +6 more
openaire   +1 more source

Tough Injectable Hydrogels Enabled by Integrating Rigid Homogeneous Framework With Flexible Chains

open access: yesAdvanced Functional Materials, EarlyView.
Tough injectable hydrogels are constructed by integrating a rigid, homogeneous hyaluronic acid framework with flexible long‐chain connectors. This framework–flexible structure simultaneously enhances network uniformity and promotes effective energy dissipation by enlarging plastic deformation zones under compression.
Rijian Song   +10 more
wiley   +1 more source

Analisa Kecepatan Sisa Proyektil Berhidung Tumpul Yang Ditembakkan Pada Baja Weldox 460 E [PDF]

open access: yes, 2014
Pengujian Balistik dimaksudkan untuk mengetahui fenomena yang terjadi akibat penetrasi peluru pada suatu material target. Pada saat ini pengembangan uji Balistik ditujukan untuk merancang suatu material anti peluru agar mampu mereduksi semaksimal mungkin
Haryanto, I. (Ismoyo)   +1 more
core  

A comparison of the two approaches of the theory of critical distances based on linear-elastic and elasto-plastic analyses [PDF]

open access: yes, 2017
The problem of determining the strength of engineering structures, considering the effects of the non-local fracture in the area of stress concentrators is a great scientific and industrial interest.
A A Kostina   +7 more
core   +1 more source

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

open access: yesAdvanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia   +7 more
wiley   +1 more source

FEA modeling of orthogonal cutting of steel: a review [PDF]

open access: yes, 2012
Orthogonal cutting is probably the most studied machining operation for metals. Its simulation with the Finite Element Analysis (FEA) method is of paramount academic interest.
Borzan, Marian   +3 more
core   +1 more source

Residual‐Lithium‐to‐LiF Conversion Enables a LiF–Fluorinated Carbon Interphase for Reconstruction‐Resistant Ni‐Rich Cathodes

open access: yesAdvanced Functional Materials, EarlyView.
A fluorine‐rich acrylate monomer (PFHEA) was solvent‐free applied to NCM90 and thermally decomposed under Ar to convert residual lithium into LiF and form a pre‐built LiF/fluorinated amorphous carbon (LiF/FC) interphase. The LiF/FC layer suppresses NiO rock‐salt reconstruction and microcrack propagation, lowers interfacial resistance, and improves Li ...
Pangyu Kim   +6 more
wiley   +1 more source

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