Results 91 to 100 of about 22,956 (243)

Modified MXene Aerogel With Broadband Microwave Absorption Inspired by Melanophila Acuminata Beetle

Advanced Science, EarlyView.
This work introduces a novel biomimetic strategy inspired by the infrared‐sensing sensilla of the Melanophila acuminata beetle. We have designed a multi‐level aerogel, featuring a three‐dimensional carbon framework decorated with synergistic CeO2 nanoparticles and Ti3C2Tx MXene nanosheets.
Zhiwei Liu, Dingyu Xu, Zhaobo Liu, Haitian Song, Qianqian Zhang, Junxiao Zhou, Xiewen Wen   +6 more
wiley   +1 more source

Active Control of Wafer Warpage Effects in PECVD: RF Stability and Film Thickness Uniformity Optimization via Preheat Management

IEEE Access
Wafer warpage poses a significant challenge to thin-film uniformity for silicon oxide (SiO ${}_{2}$ ) film deposited by plasma-enhanced chemical vapor deposition (PECVD), critically impacting semiconductor device performance and yield.
Hui Li, Saiqian Zhang, Yeliang Wang, Guangquan Lv   +3 more
doaj   +1 more source

Preheating in Hybrid Inflation [PDF]

, 1997
We investigate a possibility of preheating in hybrid inflation. This scenario involves at least two scalar fields, the inflaton field $\phi$, and the symmetry breaking field $\sigma$. We found that the behavior of these fields after inflation, as well as
Linde, Andrei D., Garcia-Bellido, Juan
core   +1 more source

Functionalized Biomimetic Scaffolds for Human‐Derived Auditory Neural Circuit Construction

Advanced Science, EarlyView.
In Vitro Auditory Circuit Model. ABSTRACT Damage to auditory circuits results in sensorineural hearing loss. However, the scarcity of human inner ear tissue significantly hinders the development of therapies to preserve auditory function, creating a critical need for reliable in vitro models.
Pan Feng, Qian Zhu, Yusong Wang, Hao Rong, Xu Zhang, Fuchun Wang, Tianqi Yu, Wenxuan Wang, Jing Li, Lei Tian, Menghui Liao, Renjie Chai, Yangnan Hu   +12 more
wiley   +1 more source

Aspects of preheating after inflation

, 2002
We review several aspects of preheating after inflation. Topics covered include the structure of bosonic parametric resonance in conformal theories, the parametric excitation of fermions both with and without expansion of the universe, and tachyonic ...
Greene, Patrick Bradley
core   +1 more source

Kinetic preheating after α-attractor inflation

We study preheating via kinetic couplings after dilaton-axion α-attractor inflation. We focus on E-model α-attractor driven inflation where the inflaton is kinetically coupled to an ultralight axion.
John T. Giblin, Jr., Reid Pfaltzgraff-Carlson, Peter Adshead   +2 more
core   +1 more source

Non-Gaussianity from instant and tachyonic preheating

, 2005
We study non-Gaussianity in two distinct models of preheating: instant and tachyonic. In instant preheating non-Gaussianity is sourced by the local terms generated through the coupled perturbations of the two scalar fields.
Multamaki, Tuomas, Enqvist, Kari, Mazumdar, Anupam, Vaihkonen, Antti, Jokinen, Asko   +4 more
core   +4 more sources

Two‐Dimensional Quaternary Alloys of (RuMoVNb)Se2 for Superior Hydrogen Evolution Reaction Catalysis

Advanced Science, EarlyView.
Composition‐tuned (RuMoVNb)Se2 quaternary alloy nanosheets are synthesized via colloidal reactions. Incorporation of Ru into (MoVNb)Se2 ternary alloys results in more metallic electronic structures and significantly enhances their electrocatalytic activity for the hydrogen evolution reaction (HER) under alkaline, acidic, and neutral conditions.
Junaid Ihsan, Ju Yeon Kim, Irtiqa Mishal, Jun Hyeok Choi, Jeong Eun An, Youn Jun Choi, Doyeon Kim, In Hye Kwak, Gianvito Vilé, Ik Seon Kwon, Hong Seok Kang, Jeunghee Park   +11 more
wiley   +1 more source

Effects of Preheating on Thermal Behavior in Inconel 718 Processed by Additive Manufacturing

Thermo
Preheating is important to improve the mechanical properties of nickel-based superalloys processed by additive manufacturing. The microstructure of IN718 was found to be influenced by the preheating temperature.
Hasina Tabassum Chowdhury, Thaviti Naidu Palleda, Naoto Kakuta, Koji Kakehi   +3 more
doaj   +1 more source

Welding of metals with accompanying preheating

This article considers a technological method of influencing the thermomechanical state (with reduced plasticity) of the crystallizing metal of a welded joint when welding metals with accompanying preheating.
G. Talipova, М. Talipov
core   +1 more source