Results 91 to 100 of about 34,895 (295)

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

Advanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

Influence of the far non-resonant components of high-n resonant magnetic perturbations on energetic passing ions loss

Nuclear Fusion
The influence on the loss of energetic passing ions by the n  = 4 resonant magnetic perturbation (RMP) is investigated through numerical simulations (here, n is the toroidal mode number of the RMP field).
Yao-Ning Zhang, Kai-Yang He, You-Wen Sun, Bao-Nian Wan, Xue-Min Wu, Peng-Cheng Xie, Yue-Qiang Liu   +6 more
doaj   +1 more source

Development of the saddle loop sensors on the J-TEXT tokamak

AIP Advances, 2017
To measure the amplitude and phase of the non-axisymmetric radial magnetic field generated by the locked mode, 12 saddle loop sensors are newly developed on the J-TEXT Tokamak.
Daojing Guo, Qiming Hu, Da Li, Nengchao Wang, Yonghua Ding, Chengshuo Shen, Zhuo Huang, Guo Xu, Qingquan Yu, Yuejin Tang, Ge Zhuang   +10 more
doaj   +1 more source

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

Advanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco, Pierfrancesco Gaziano, Serena Anglese, Simone Morganti, Carlo de Vincentiis, Ferdinando Auricchio, Michele Marino, Michele Conti   +7 more
wiley   +1 more source

Sensitivity of magnetic islands in permanent magnet stellarators using the gradient and Hessian methods

Nuclear Fusion
Stellarator plasmas are known to be very sensitive to perturbations in the magnetic field. The permanent magnet stellarator was in part developed as a solution to high machining tolerances placed on the shape properties of electromagnetic coils in ...
A. Chambliss, C. Zhu, D. Gates, M. Zarnstorff, T. Qian   +4 more
doaj   +1 more source

Numerical study of Cosmic Ray Diffusion in MHD turbulence

, 2010
We study diffusion of Cosmic Rays (CRs) in turbulent magnetic fields using test particle simulations. Electromagnetic fields are produced in direct numerical MHD simulations of turbulence and used as an input for particle tracing, particle feedback on ...
A. Beresnyak, A. Lazarian, Bell, Beresnyak, Beresnyak, Beresnyak, Beresnyak, Beresnyak, Beresnyak, Boldyrev, Cho, Cho, Felice, Giacalone, H. Yan, Hawley, Hunter, Krymsky, Kóta, Landau, Lazarian, Lazarian, Lazarian, Lithwick, Mace, Malkov, Malyshev, Maron, Matthaeus, Narayan, Qin, Schlickeiser, Skilling, Sreekumar, Strong, Strong, Yan, Yan   +37 more
core   +1 more source

Light Activated Induction of Cuproptosis in Resistant Cancer Cells Using Polymeric BODIPY Nanoparticles for Photoactivated Chemotherapy

Advanced Functional Materials, EarlyView.
This article presents a photo‐responsive nanoparticle platform that precisely triggers copper‐dependent cuproptotic cell death in (drug‐resistant) cancer cells. The system remains stable and inactive in the dark but releases cytotoxic species upon red‐light irradiation, achieving potent activity in drug‐resistant breast cancer cells.
Ricarda Zimmermann, Nicolás Montesdeoca, Johannes Karges   +2 more
wiley   +1 more source

Active control of Alfvén eigenmodes by external magnetic perturbations with different spatial spectra

Nuclear Fusion
Alfvén eigenmodes have been suppressed and excited in tokamak plasmas by (just) modifying the poloidal spectra of externally applied static magnetic perturbations.
J. Gonzalez-Martin, M. Garcia-Munoz, J. Galdon-Quiroga, Y. Todo, J. Dominguez-Palacios, M. Dunne, A. Jansen Van Vuuren, Y.Q. Liu, L. Sanchis-Sanchez, D. Spong, W. Suttrop, X. Wang, M. Willensdorfer, the ASDEX Upgrade Team, the MST1 Teams   +14 more
doaj   +1 more source

Mean shear flows generated by nonlinear resonant Alfven waves

, 2009
In the context of resonant absorption, nonlinearity has two different manifestations. The first is the reduction in amplitude of perturbations around the resonant point (wave energy absorption).
Braginskii S. I., Christopher T. M. Clack, Istvan Ballai, Mariska J. T., Nayfeh A. H., Young P. R.   +5 more
core   +1 more source

Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?

Advanced Functional Materials, EarlyView.
This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee, Yunseo Kim, Hyeong‐ku Jo, Dongjoon Yoon, Byeonghyeok Im, WonJeong Yu, Eui‐Rim On, Changhwan Lee   +7 more
wiley   +1 more source