Results 41 to 50 of about 123,617 (302)

Natural Products as Geroprotective Modulators in Diabetic Nephropathy: A Mechanistic Framework Integrating Aging Hallmarks and the AMPK–SIRT1–Nrf2 Axis

Aging and Cancer, EarlyView.
Natural products target the aging kidney in diabetic nephropathy by restoring the AMPK–SIRT1–Nrf2 axis, reducing oxidative stress, inflammation, fibrosis, and cellular senescence while enhancing mitochondrial biogenesis and antioxidant defenses.
Sherif Hamidu, Latif Adams, Eunice Ampem‐Danso, Justice Kumi, Abigail Aning, Fatima Hamidu, Mustapha Abdul Mumin Mohammed, Ayuba Nii Darku Ankrah, Seth Kwabena Amponsah   +8 more
wiley   +1 more source

Research progress in damping alloys

Cailiao gongcheng
Damping alloys can dissipate vibration energy into thermal energy through defective motion with high mechanical properties and functional characteristics， which have a great significance in the development and research of aerospace and military fields ...
ZHAO Tailin, NIU Ben, WANG Qing, DONG Chuang   +3 more
doaj   +1 more source

The squeezed generalized amplitude damping channel

, 2007
Squeezing of a thermal bath introduces new features absent in an open quantum system interacting with an uncorrelated (zero squeezing) thermal bath.
A. S. Holevo, A. S. Holevo, D. Wilson, H.-P. Breuer, K. Kraus, M. Nielsen, M. O. Scully, R. Srikanth, R. Srikanth, Subhashish Banerjee, W. H. Louisell, W. H. Zurek   +11 more
core   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Damping behavior and mechanical properties of novel Acrylic/TiNi composites

Cailiao gongcheng, 2023
Metal-matrix composites with high damping capacity and excellent energy absorption properties have extensive application requirements. Porous TiNi shape memory alloys with a three-dimensional connected structure were firstly prepared by powder metallurgy
HAO Gangling, ZHANG Jiang, LI Yuchuan, WANG Xingfu, LEI Bo, WANG Weiguo, WANG Xinfu   +6 more
doaj   +1 more source

A picogram and nanometer scale photonic crystal opto-mechanical cavity [PDF]

, 2008
We describe the design, fabrication, and measurement of a cavity opto-mechanical system consisting of two nanobeams of silicon nitride in the near-field of each other, forming a so-called "zipper" cavity.
A Ashkin, A Schliesser, A Schliesser, B Ilic, B-S Song, C Höhberger, CA Regal, F Marquardt, I Tittonen, J Chan, Jasper Chan, JD Thompson, K Srinivasan, Kerry J. Vahala, M Eichenfield, M Hossein-Zadeh, M Li, M Notomi, Matt Eichenfield, ML Povinelli, MW McCutcheon, O Arcizet, Oskar Painter, PT Rakich, RH Olson, Ryan Camacho, S Gigan, SS Verbridge, SS Verbridge, T Corbitt, TD Stowe, TJ Kippenberg, TJ Kippenberg, TJ Kippenberg, Y Takahashi   +34 more
core   +3 more sources

Evaluating Energy Absorption Performance of Filled Lattice Structures

Advanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney, William P. King, Iwona Jasiuk   +2 more
wiley   +1 more source

Sensitivity of Building Loss Estimates to Major Uncertain Variables [PDF]

, 2002
This paper examines the question of which sources of uncertainty most strongly affect the repair cost of a building in a future earthquake. Uncertainties examined here include spectral acceleration, ground-motion details, mass, damping, structural force ...
Beck, James L., Porter, Keith A., Shaikhutdinov, Rustem V.   +2 more
core   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Temperature damping capacity and microstructure evolution of Mg–Al–Zn–Sn alloy

Journal of Materials Research and Technology, 2023
The temperature damping capacities of Mg–3Al–1Zn-xSn (x=3, 6, 9) alloys were investigated using a Dynamic Mechanical Thermal Analyzer (DMA) under varied loading frequencies and Sn concentrations.
Qiangbing Liu, Jiaxuan Ma, Shiyu Luan, Jinhui Wang, Shuai Yuan, Li Han, Peipeng Jin   +6 more
doaj   +1 more source