Published in Chinese Journal of Mechanical Engineering
Deep-sea sediment is extremely important in marine scientific research, such as that concerning marine geology and microbial communities. The research findings are closely related to the in-situ information of the sediment. One prerequisite for investigations of deep-sea sediment is providing sampling techniques capable of preventing distortion dur...
Published in Environmental Microbiome
BackgroundReliable identification and quantification of bioaerosols is fundamental in aerosol microbiome research, highlighting the importance of using sampling equipment with well-defined performance characteristics. Following advances in sequencing technology, shotgun metagenomic sequencing (SMS) of environmental samples is now possible. However,...
Published in The Science of the total environment
A rotating filtration device (RFD) that is filled with porous media is developed for sampling particulate matter with a diameter of 1 μm or less (PM1). An experiment is conducted on a test system using corn oil as a test aerosol. The RFD was evaluated using an aerodynamic particle sizer. The results yielded cutoff sizes of 1.68 μm and 1.04 μm at ro...
As the world becomes more and more connected, the need for higher data throughput becomes increasingly urgent. This implied more creativity from circuit designers to come up with higher bandwidth circuits and faster pace clocks to drive them.However, the traditional microelectronics clock circuits fail short to fulfill the ever-increasing need for ...
Published in Journal of Nanoparticle Research
A sampler has been designed to collect particles in the nanometer and respirable sizes directly onto a membrane filter and transmission electron microscopy (TEM) grid. The novel design aspects of this sampler include the selection of the diameter of the inlet probe, geometry of the sampler, and the resulting air flow to the sampler. Together, they ...
Published in Space Science Reviews
Japan Aerospace Exploration Agency (JAXA) launched the asteroid exploration probe “Hayabusa2” in December 3rd, 2014, following the 1st Hayabusa mission. With technological and scientific improvements from the Hayabusa probe, we plan to visit the C-type asteroid 162137 Ryugu (1999 JU3), and to sample surface materials of the C-type asteroid that is ...
Published in Environmental Science and Pollution Research
The relevance of a risk assessment of the built heritage was clearly justified due to the fact that it acts as a pollutant repository and hazardous pollutants have the capacity to penetrate into materials. However, the limitation of the sampling processes due to the high value of the built heritage makes a correct evaluation difficult. For that rea...
Published in Journal of Zhejiang University SCIENCE A
Submarine hydrothermal vents occur over a wide depth range from a few meters to several thousands of meters. Most existing hydrothermal fluid samplers are focused on deep-sea environments and are not suited for collecting shallow-water fluids. In this study, a new gas-tight sampler which can be easily deployed by both submersibles and scuba divers ...
Sampled-data systems are control systems in which the feedback law is digitally implemented via a computer. They are prevalent nowadays due to the numerous advantages they offer compared to analog control. Nonlinear sampled-data systems arise in this context when either the plant model or the controller is nonlinear. While their linear counterpart ...
(1) Undersökningsobjektet - Tvätteriet Alingsås; (2) Områdesbeskrivning; (3) Klorerade alifatiska kolväten; (4) Undersökningsmetoder; (5) Provtagning av trädkärnor; (6) MIP-sondering; (7) Metod för direkttätning av MIP-sonderingshål; (8) Multinivårör för grundvattenprovtagning; (9) Användning av Waterra pumpar; (10) Jämförelse av olika slangmateria...
