The method presented in this paper uses air flux to induce spiral motion in small-scale (e.g., microlitre) fluid entities in an efficient, technologically convenient manner. The set-up entails a manifold that modulates the air flux and projects it onto a liquid-containing reservoir. The flow behaviour of the liquid phase has been visualized through the dissolution of rhodamine B crystallites and the motion of fluorescent microbeads. In addition, the method proved effective to restoring a suspension of spherical particles upon sedimentation, promoting displacement and capture of the beads within a microfluidic system.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c0lc00723d | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Ocean as source or sink for legacy persistent organic pollutants.
J Hazard Mater
December 2024
College of Oceanography and Ecological Science, Shanghai Ocean University, Shanghai 201306, China.
With the phase-out of legacy persistent organic pollutants (POPs), the ocean's role is evolving, potentially acting as both a reservoir and a source. This study investigates the air-sea fluxes of the first banned POPs, such as organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs), using literature from Web of Science up to 2023. OCP and PCB concentrations in air and seawater show significant spatiotemporal variability.
View Article and Find Full Text PDFLow Thermal Conductivity and Diffusivity at High Temperatures Using Stable High-Entropy Spinel Oxide Nanoparticles.
Adv Mater
December 2024
Program in Materials Science and Engineering, University of California, San Diego, La Jolla, CA, 92093, USA.
The realization of low thermal conductivity at high temperatures (0.11 W m K 800 °C) in ambient air in a porous solid thermal insulation material, using stable packed nanoparticles of high-entropy spinel oxide with 8 cations (HESO-8 NPs) with a relatively high packing density of ≈50%, is reported. The high-density HESO-8 NP pellets possess around 1000-fold lower thermal diffusivity than that of air, resulting in much slower heat propagation when subjected to a transient heat flux.
View Article and Find Full Text PDFMethane emissions from the riverine sandy wetlands on the Mongolia Plateau.
Environ Monit Assess
December 2024
State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing, 100093, China.
Methane (CH) processes and fluxes have been widely investigated in low-latitude tropical wetlands and high-latitude boreal peatlands. In the mid-latitude Mongolia Plateau, however, CH processes and fluxes have been less studied, particularly in riverine wetlands. In this study, in situ experiments were conducted in the riverine sandy wetlands of the Mongolia Plateau to gain a better understanding of CH emissions and their influencing mechanisms.
View Article and Find Full Text PDF[NO Generation, Key Influencing Factors, and Emission Reduction Strategies of AO Process in Municipal Wastewater Treatment Plant].
Huan Jing Ke Xue
January 2025
National Engineering Laboratory of Urban Sewage Advanced Treatment and Resource Utilization Technology, Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China.
To achieve non-carbon dioxide greenhouse gas emission reduction and control in municipal wastewater treatment plants （WWTPs）, this study conducted one-year long-term monitoring of nitrous oxide （NO） in the anaerobic-anoxic-aerobic （AO） process of a large-scale municipal wastewater treatment plant in Beijing. The experimental results showed that the anaerobic and anoxic zones of the AO process could effectively remove dissolved NO contained in the return sludge, while the aerobic zone was the main area for NO generation and emission, and its generation pathway may have been dominated by ammonia oxidizing bacteria （AOB） denitrification. A significant difference was observed between winter and summer NO production, and the difference in the average NO release flux was up to 7.
View Article and Find Full Text PDFAn accelerator-based neutron source design with a thermal neutron port and an epithermal neutron port for boron neutron capture therapy.
Appl Radiat Isot
December 2024
Institute of Nuclear Techniques of Budapest University of Technology and Economics, Műegyetem Rkp 9, 1111, Budapest, Hungary.
This study presents a compact accelerator-driven neutron source design with a thermal neutron port and an epithermal neutron port for Boron Neutron Capture Therapy (BNCT), based on 10 mA 2.5 MeV protons bombarding on a 100 μm thick disc-shaped Li target with a diameter of 10 cm. The moderator consists of 2 parts, the epithermal neutron moderator and the thermal neutron moderator.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!