An X-ray diffraction method is described for the quantitative determination of quartz in dust samples. The analysis was done directly on a collecting cellulose ester membrane filter of the type used ...

Opflow is primarily written by the people who read it and is the water community's primary network for operator-level workers. The award-winning monthly magazine presents new and established ...

Tumor cell invasion into the basement membrane is an important step in the multistep process of cancer metastasis (Liotta, 1986). Various in vitro assay systems have been developed for the ...

Arterial filter (arterial blood filter) is suitable for heart surgical operation under extracorporeal circulation. In the artery, it can remove micro-aggregates and micro-emboli. Membrane Solutions ...