Abstract: A process for the preparation from a partially decomposed organic material like peat a granulated or pelletized sorption medium using low-temperature, thermal activation of the sorption medium to produce a high degree of granule or pellet hardness balanced against an efficacious level of ion-exchange and adsorption capacity, followed by chemical treatment of the thermally-activated sorption material via an acid solution and a salt solution to increase its ion-exchange and adsorption performance while minimizing the transfer of natural impurities found in the sorption medium to an aqueous solution is provided by this invention. The sorption medium of this invention can be used in a variety of aqueous solution treatment processes, such as wastewater treatment.
Type:
Grant
Filed:
March 14, 2014
Date of Patent:
February 7, 2017
Assignees:
American Peat Technology, LLC, Reagents of the University of Minnesota
Inventors:
Igor V. Kolomitsyn, Peggy Wallgren Jones, Douglas A. Green
Abstract: The invention includes methods for inhibiting retroviral infections such as HIV. The methods of this invention involve the use of certain fragments of fibronectin and such fragments conjugated to carrier molecules such as ovalbumin to inhibit retroviral infections. The invention also includes novel proteins which comprise fibronectin fragments covalently linked to carrier proteins.
Type:
Grant
Filed:
August 16, 1994
Date of Patent:
August 13, 1996
Assignees:
The United States of America as represented by the Department of Health and Human Services, Reagents of the University of Minnesota
Inventors:
Sharon M. Wahl, James B. McCarthy, Leo T. Furcht
Abstract: Two amplitude/frequency/phase modulated pulses that can achieve 90.degree. plane rotations over large B.sub.1This invention was made with Government support under Grant No. HL 33600 awarded by NIH. The Government has certain rights in the invention.
Abstract: A driving tool having a tiltable head lockable into a plurality of positions for imparting rotating motion to an output device as the result of squeezing two handle members.
Abstract: A single-crystal monolith containing a 3-D doping pattern forming varied devices and circuits that are junction-isolated. The semiconductor monolith includes interconnecting signal paths and power buses, also junction-isolated, usually with N+ regions within P matrix regions, and tunnel junctions, N+-P+ junctions, as ohmic contacts from N-type to P-type regions. An isolating box incorporates an orthogonal isolator. The 3-D structure places layers of critical profile normal to the growth axis. The orthogonal isolator can include floating elements. The 3-D semiconductor monolith can be manufactured through continuous or quasicontinuous processing in a closed system, such as through MBE or sputter epitaxy.
Type:
Grant
Filed:
November 19, 1985
Date of Patent:
December 27, 1988
Assignee:
Reagents of the University of Minnesota
Inventors:
Raymond M. Warner, Jr., Ronald D. Schrimpf, Alfons Tuszynski
Abstract: Antiviral (3-ethoxypropionate) esters of (+)-cyclaradine having the formula: ##STR1## In the monoester Ry and Rz are hydrogen. In the diester Ry is the 3-ethoxypropionyl group and Rz is hydrogen. In the triester, Ry and Rz are each 3-ethoxypropionyl groups.