Results 121 to 130 of about 244,766 (288)

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Mechanically interlocked nanotubes as recyclable catalysts for Knoevenagel condensation

Communications Chemistry
Single-walled carbon nanotubes (SWNTs) are a very attractive platform to build heterogeneous catalysts, benefiting from their intrinsic high surface area and their insolubility.
Mariano Vera-Hidalgo, Matías Blanco, Teresa Naranjo, Cristina Navío, Luisa Ruiz-González, Alejandro López-Moreno, Emilio M. Pérez   +6 more
doaj   +1 more source

Flavonoid Composition and Molecular Basis of the Potential Sexual-Enhancing Properties of a Turnera diffusa Extract (Liboost^®)

Pharmaceuticals
Background/Objectives: Sexual dysfunction is a prevalent and multifactorial condition affecting a large proportion of the global population, with limited therapeutic options beyond pharmacological approaches primarily targeting erectile dysfunction. This
Iván Benito-Vázquez, María Inés Morán-Valero, Marina Díez-Municio, Adal Mena-García   +3 more
doaj   +1 more source

Connexin 43‐Enriched Vesicles Improve Synchronization in hiPSC‐Derived Cardiomyocytes

Advanced Science, EarlyView.
Plasma membrane‐derived Connectosomes enriched in connexin‐43 are produced from donor hiPSCs and applied to hiPSC‐derived cardiomyocytes (hiPSC‐CMs). Connexin‐43 channels on Connectosomes remain functional, strengthening intercellular electrochemical coupling and increasing network synchronization over time.
Nima Momtahan, Anna K. McClain, Andrea Trementozzi, Sogu Sohn, Lingxia Qiao, Chi Zhao, Padmini Rangamani, Jeanne C. Stachowiak, Janet Zoldan   +8 more
wiley   +1 more source

Rotation Measure Jitter: Wavelength-dependent Scatter in Rotation Measure Related to Faraday Complexity

The Astrophysical Journal
The relation between Faraday rotation measure (RM) and differential Faraday rotation by unresolved structure of a turbulent plasma is investigated for extragalactic radio sources.
Jeroen M. Stil
doaj   +1 more source

A Study of the Influence of Synthesis Parameters on the Preparation of High Performance SSZ-13 Membranes

Applied Sciences
This study investigated the effect of different synthesis parameters including pre- and post-hydrothermal treatment on the formation of a high-quality SSZ-13 membrane layer.
Alireza Taherizadeh, Adrian Simon, Hannes Richter, Michael Stelter, Ingolf Voigt   +4 more
doaj   +1 more source

Synergistic Ion Transport and Spatial Confinement in Sb‐Embedded Hollow Carbon Nanofibers for Stable Na Metal Anodes

Advanced Science, EarlyView.
This work presents a 3D Sb‐embedded hollow carbon nanofiber (Sb@HCF) host for ultra‐stable Na metal anodes. Experimental analyses and theoretical simulations clearly uncovers that in situ formed Na‐Sb alloy guides uniform Na deposition and serves as efficient ion transport highways. The Sb@HCF‐based cells achieve exceptional cycling stability in half‐,
Feng Han, Menghuan Yuan, Hui Wang, Baitao Liu, Dezhi Kong, Yongtao Tian, Xinjian Li, Ye Wang, Tingting Xu, Hui Ying Yang   +9 more
wiley   +1 more source

Self‐Nitriding Nanostructured Transition Metal Nitrides in Architected‐Carbon Matrices: Unveiling Mechanisms and Advancing Performance in Lithium‐Sulfur Pouch Cells

Advanced Science, EarlyView.
Imidazolium PIL nanoparticles, as an N‐rich template and morphology director, enable a colloidal self‐nitriding route to TMNs (VN, Mo2N) within controlled solid/hollow carbon architectures. As sulfur hosts/additives, TMNs accelerate Li–S redox kinetics and support high‐loading cathodes.
Yael Rodriguez Ayllon, Liqiang Lu, Dongjiu Xie, Xuefeng Pan, Teodor Jianu, Fangmu Qu, Sijia Cao, Yu Zhang, Roberto Félix, Marcus Bär, Nadezda V. Tarakina, Johannes Schmidt, Qingping Wu, Jiayin Yuan, Yan Lu   +14 more
wiley   +1 more source

Resum of values of the Faraday

Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1968
A resumé is given of the determinations of the value of the Faraday. Values obtained by silver deposition, iodide oxidation, oxalate oxidation, the omegatron, and silver dissolution are reviewed. All values are converted to the unified 12C international scale of atomic weights using the international atomic weights of 1967.
openaire   +2 more sources

Self‐Assisted Charge Storage‐Release Mechanism Enabling Flexible Design of Biomimetic Triboelectric Nanogenerators

Advanced Science, EarlyView.
Inspired by the mimosa, this study develops a flexible triboelectric nanogenerator with a novel microneedle array and battery‐mimetic architecture. The device introduces a spontaneous charge self‐regulation mechanism that confines the electric field below the air breakdown threshold, and achieves an outstanding charge density of 396.50 µC m−2 ...
Hanpeng Gao, Yamin Hu, Li Li, Ana Sofia Oliveira Henriques Moita, Xi Wang, Zong Meng, Zhiwu Han, Yan Liu   +7 more
wiley   +1 more source