A5046723172- Laser-Plasma Interactions and Diagnostics
- Magnesium Alloys: Properties and Applications
- Bone Tissue Engineering Materials
- Nonlinear Dynamics and Pattern Formation
- Speech and Audio Processing
- Particle Accelerators and Free-Electron Lasers
- Adhesion, Friction, and Surface Interactions
- Advanced Adaptive Filtering Techniques
- Chaos control and synchronization
- Advancements in Photolithography Techniques
- Particle accelerators and beam dynamics
- Advanced Sensor and Energy Harvesting Materials
- Photonic Crystal and Fiber Optics
- Quantum chaos and dynamical systems
- Additive Manufacturing and 3D Printing Technologies
- Integrated Circuits and Semiconductor Failure Analysis
- Nanofabrication and Lithography Techniques
- Advanced Fiber Laser Technologies
- Nanoparticle-Based Drug Delivery
- Advanced biosensing and bioanalysis techniques
- Crop Yield and Soil Fertility
- Hearing Loss and Rehabilitation
- Dendrimers and Hyperbranched Polymers
- Cellular and Composite Structures
- Membrane Separation Technologies
Shanghai Tenth People's Hospital
2025
Nanjing Medical University
2025
Tsinghua University
2015-2025
Sichuan Normal University
2025
Molecular Oncology (United States)
2024
Hunan Normal University
2024
Southwest University of Science and Technology
2024
Southwest Petroleum University
2023
Suzhou Research Institute
2022
Northeastern University
2017-2022
Laser powder bed fusion (L-PBF) of magnesium (Mg) alloy porous scaffolds is expected to solve the dual challenges from customized structures and biodegradable functions required for repairing bone defects. However, one key technical difficulties lies in poor L-PBF process performance Mg, contributed by high susceptibility oxidation, vaporization, thermal expansion, attachment etc. This work investigated influence energy input scanning strategy on formation quality using WE43 powder,...
Abstract Architected materials that consist of multiple subelements arranged in particular orders can demonstrate a much broader range properties than their constituent materials. However, the rational design these generally relies on experts’ prior knowledge and requires painstaking effort. Here, we present data-efficient method for high-dimensional multi-property optimization 3D-printed architected utilizing machine learning (ML) cycle consisting finite element (FEM) 3D neural networks....
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTControlling chemical chaosBo Peng, Valery Petrov, and Kenneth ShowalterCite this: J. Phys. Chem. 1991, 95, 13, 4957–4959Publication Date (Print):June 1, 1991Publication History Published online1 May 2002Published inissue 1 June 1991https://pubs.acs.org/doi/10.1021/j100166a013https://doi.org/10.1021/j100166a013research-articleACS PublicationsRequest reuse permissionsArticle Views285Altmetric-Citations178LEARN ABOUT THESE METRICSArticle Views are the...
Laser powder bed fusion (L-PBF) has been employed to additively manufacture WE43 magnesium (Mg) alloy biodegradable implants, but L-PBF samples exhibit excessively rapid corrosion. In this work, dense were built with the relativity density reaching 99.9%. High temperature oxidation was performed on in circulating air via various heating temperatures and holding durations. The diffusion at elevated generated a gradient structure composed of an oxide layer surface, transition middle matrix....
Abstract Context-dependent dynamic histone modifications constitute a key epigenetic mechanism in gene regulation 1–4 . The Rpd3 small (Rpd3S) complex recognizes H3 trimethylation on lysine 36 (H3K36me3) and deacetylates histones H4 at multiple sites across transcribed regions 5–7 Here we solved the cryo-electron microscopy structures of Saccharomyces cerevisiae Rpd3S its free H3K36me3 nucleosome-bound states. We demonstrated unique architecture Rpd3S, which two copies Eaf3–Rco1 heterodimers...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPeriod doubling and chaos in a three-variable autocatalatorBo. Peng, Stephen K. Scott, Kenneth. ShowalterCite this: J. Phys. Chem. 1990, 94, 13, 5243–5246Publication Date (Print):June 1, 1990Publication History Published online1 May 2002Published inissue 1 June 1990https://pubs.acs.org/doi/10.1021/j100376a014https://doi.org/10.1021/j100376a014research-articleACS PublicationsRequest reuse permissionsArticle Views288Altmetric-Citations69LEARN ABOUT...
Plasma-based accelerators have made impressive progress in recent years. However, the beam energy spread obtained these is still at ~ 1 % level, nearly one order of magnitude larger than what needed for challenging applications like coherent light sources or colliders. In plasma accelerators, mainly dominated by its chirp (longitudinally correlated spread). Here we demonstrate that when an initially chirped electron from a linac with proper current profile sent through low-density structure,...
Laser powder bed fusion (L-PBF) of Mg alloys has provided tremendous opportunities for customized production aeronautical and medical parts. Layer thickness (LT) is great significance to the L-PBF process but not been studied alloys. In this study, WE43 alloy bulk cubes, porous scaffolds, thin walls with layer thicknesses 10, 20, 30, 40 μm were fabricated. The required laser energy input increased increasing was different cubes scaffolds. Porosity tended occur at connection joints in...
A simple proportional-feedback algorithm for controlling chaos is presented. The scheme a map-based variation of method recently proposed by Ott, Grebogi, and Yorke [Phys. Rev. Lett. 64, 1196 (1990)] in which unstable periodic orbits embedded within strange attractor are stabilized through deliberate perturbations system constraint. simplified offers advantages control systems more complicated algorithms might not be feasible due to short time scales or limited computational resources....
Social anxiety is characterized by excessive fear of negative evaluation and avoidance in social situations. While its neural processing patterns are well-documented, the millisecond-level temporal dynamics brain functional networks remain poorly understood. This study used EEG microstate analysis to explore dynamic mechanisms underlying anxiety. Eyes-closed resting-state data were collected from 41 participants, divided into high (n = 23) low 18) groups based on their Liebowitz Anxiety...
A canard is a false bifurcation in which the amplitude of an oscillatory system may change by orders magnitude while qualitative dynamical features remain unchanged. Recent theoretical considerations suggest that canards are characteristic fast-slow systems and associated with stable unstable manifolds phase plane. An alternative characterization behaviour proposed involving crossing inflection line limit cycle growing out from stationary state. The comprises locus points at curvature any...
Complex oscillations and even aperiodicity can exist as transient phenomena in closed chemical systems. These effects are illustrated through the analysis of a simple, isothermal model based on mass action kinetics for autocatalytic feedback, involving conversion reactant to final product via three intermediate species. The use so-called pool approximation pseudo-steady-state analyses such systems is indicated discussed, particularly with relevance ‘‘real’’ situations where small...
Bamboo leaf shaped poly(ethylene oxide)-b-poly(ϵ-caprolactone) (PEO-b-PCL) sheets were prepared via crystallization-driven self-assembly. By selecting an appropriate mixed solvent, the polymer sheets, with a PCL single-crystal layer sandwiched by two PEO layers, obtained efficiently. The morphology and structure of characterized microscopes diffraction techniques. As non-spherical model particle, endocytosis was investigated on RAW 264.7, U937, HUVECs, HeLa, 293T cells. just like wafers for...
The temporal evolution of the magnetic field associated with electron thermal Weibel instability in optical-field ionized plasmas is measured using ultrashort (1.8 ps), relativistic (45 MeV) bunches from a linear accelerator. self-generated fields are found to self-organize into quasistatic structure consistent helicoid topology within few picoseconds and such lasts for tens underdense plasmas. growth rate agrees well that predicted by kinetic theory taking account collisions. Magnetic...
Abstract Combining perovskite oxides (BaTiO3 and SrTiO3) with indium-gallium-zinc-oxide (IGZO) has great potential for developing thin film transistors (TFT) due to the ferroelectricity, extreme permittivity promotion gate-controlled ability surface passivation. In this work, heterojunction of BaTiO3/IGZO SrTiO3/IGZO were prepared on sapphire by magnetron sputtering. The morphologies, crystalline structures, chemical compositions, band alignments deposited films related heterojunctions...