نتایج جستجو برای: diatomaceous earth

تعداد نتایج: 93661  

2009
Michael D. Richardson R.Keith Warner Nancy A. Wolf Greg C. Jones

A field study was designed to study several inorganic soil amendments as a substitute for sand in the top-dressing of an aerified, sandbased putting green. Several forms of natural zeolites, calcined clays, and diatomaceous earth were blended with sand and used to backfill aerification holes on a sand-based putting green. Several of these amendments enhanced turfgrass recovery and quality in th...

2013
George E. Bass James E. Chenevey

The study reported here concerns a phenomenon, discovered and extensively investigated by Sorin Comorosan, wherein enzyme initial reaction rates are enhanced as a consequence of incorporation of solutions derived from previously irradiated crystalline material into the reaction medium. Effective irradiation times conform to a sharply oscillatory pattern. In most reports, the irradiated crystall...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1981
S S Husain B Lipinski V Greuwich

A preparation of fibrin precipitated over a solid Celite (diatomaceous earth) matrix that selectively binds 50-70% of the plasminogen activator present in human blood plasma is described. Affinity chromatography of plasma on fibrin/Celite followed by gel filtration led to a 29,000-fold purification of the plasminogen activator. The activator, referred to as the high-affinity plasminogen activat...

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