Some novel micro/nano-moiré methods have been developed at the Failure Mechanics Lab in Tsinghua University. This paper offers an introduction of these new methods, which can be realized under focus ion beam (FIB) system,scanning electron microscope (SEM), atomic force microscope (AFM), scanning tunneling microscope(STM) as well as laser scanning confocal microscope (LSCM). These micro/nano-moi...

The reduction and dehydration treatment of contaminated sediment from rivers lakes is a prerequisite for ensuring the subsequent safe disposal. In this study, micro-nano bubbles (MBs) technology was creatively proposed conditioning to improve its sedimentation performance. Orthogonal experiment single factor were conducted optimize factors such as bubble size, intake air volume time. effect ana...

abstract background and aim: one of the major problems with resin composite restorations is the weakness of bonding between the new and aged composites. since appropriate micromechanical retention is necessary for the repair of aged resin composite restorations, the level of surface roughness after sandblasting can be influential in this regard. considering the diverse composition of available ...

This in vitro study was conducted to evaluate the shear bond strength of "non-self-adhesive" resin to dental zirconia etched with hydrofluoric acid (HF) at room temperature and to compare it to that of air-abraded zirconia. Sintered zirconia plates were air-abraded (control) or etched with 10%, 20%, or 30% HF for either 5 or 30 min. After cleaning, the surfaces were characterized using various ...

We study the elastic properties of soft solids containing air bubbles. Contrary to standard porous materials, the softness of the matrix allows for a coupling of the matrix elasticity to surface tension forces acting on the bubble surface. Thanks to appropriate experiments on model systems, we demonstrate how the elastic response of the soft porous solid is governed by two dimensionless paramet...

The boiling behavior on nano-structured surfaces is a frontier research direction in nuclear engineering. However, the mechanism of heat transfer still unclear. In this study, depletable micro-layer model and nano-structure are proposed based Moving Particle Semi-implicit (MPS) method coupled with Meshless-Advection using Flow-directional Local-grid (MAFL) scheme, also known as MPS-MAFL method....

• Micro/nanobubbles (MNB) promote the photocatalytic disinfection of microbial spores. H 2 O and •OH are primary active species responsible for spore inactivation. MNB induced light scattering significantly increases bactericidal efficiency. Sustainable supply from MNBs can accelerate hole oxidation catalyst. triggered interfacial photoelectric effect plays a key role in enhancement. Microbial ...

By its very title, Nano-Micro Interface: Bridging Micro and Nano Worlds is a timely book for the field of nanotechnology. Since researchers can make microscale objects nanoscale (the top-down approach) as well as atomic and molecular species nanoscale (the bottom-up approach) are there applications in nanoscience and technology that can benefit, or be revolutionized, by combining both approache...

Polyurethane-based micro- and nano-hybrid composites were produced with controlled porosity to be used as obturation materials. In addition to hydroxyapatite (HAp) micro-particles in the composites, two different ceramics particle types were also added: alumina micro-particles and silica nano-particles. Particles of different sizes provide the materials with improved mechanical properties: the ...