Zobrazeno 1 - 10
of 210
pro vyhledávání: '"L Tollefson"'
Publikováno v:
Irrigation and Drainage. 63:158-175
Irrigated agriculture is undergoing rapid change and is facing issues related to climate change, population growth, consumption patterns, competition for resources and cost of development. The challenge is whether water availability for irrigation al
Publikováno v:
Energy & Fuels. 22:2443-2449
Three Canadian coals, namely, Bienfait lignite, Montgomery sub-bituminous C, and Coal Valley high volatile bituminous C were activated in a fixed-bed reactor. For each coal, two different sizes of ...
Autor:
L. Tollefson
Publikováno v:
Journal of Veterinary Medicine Series B. 51:415-418
Resistance to antimicrobial agents is of concern to public health officials worldwide. In industrialized countries, a significant source of antimicrobial-resistant food-borne infections in humans is the acquisition of resistant bacteria originating f
Publikováno v:
Environmental Science & Technology. 33:2241-2246
A process is proposed for the removal of H{sub 2}S from sour produced wastewater at lower temperatures (< 25 C) using an activated carbon as a catalyst and oxygen in air as an oxidizing agent. Hydrodarco-activated carbon catalyst was successfully use
Autor:
Ajay K. Dalai, Eric L. Tollefson
Publikováno v:
The Canadian Journal of Chemical Engineering. 76:902-914
On a etudie la cinetique du procede d'oxydation de l'hydrogene sulfure, qui produit essentiellement du soufre et de l'eau, en recourant a un catalyseur au charbon active Hydrodarco (de 0,25 a 1,0 g) et en faisant varier le rapport O 2 /H 2 S (base mo
Autor:
Jeffrey L. Tollefson
Publikováno v:
Pacific Journal of Mathematics. 183:359-374
We describe an approach to normal surface theory for triangulated 3-manifolds which uses only the quadrilateral disk types (Q-disks) to represent a nontrivial normal surface. Just as with regular normal surface theory, interesting surfaces are among
Publikováno v:
The Canadian Journal of Chemical Engineering. 76:76-86
Low concentrations (e.g. < 3) of H2 S in natural gas can be selectively oxidized over an “granular Hydrodarco” activated carbon catalyst to elemental sulphur, water and a small fraction of by-product sulphur dioxide, SO2. To optimize the H2 S cat
Publikováno v:
Canadian Water Resources Journal. 23:339-350
The need for high energy input is one of the primary limitations to developing the sustainability of centre pivot irrigation. The purpose of the project described in this paper was to evaluate Saskatchewan performance data for Low Elevation Spray App
Publikováno v:
Revue Scientifique et Technique de l'OIE. 16:709-715
Recent statutory changes involving animal drugs are expected to facilitate the therapeutic use of antibiotics in animal feeds in the United States of America. The use of antibiotics in animal feeds is controversial due to the potential development of
Publikováno v:
The Canadian Journal of Chemical Engineering. 75:379-390
The hot water process has recovered approximately 90% of the bitumen in oil sands, but the remaining 10% of bitumen and naphtha has been lost to the tailings pond. Recovery of bitumen and non-bituminous combustibles (NBC) from centrifuge, scroll and