30 research outputs found
Crop Varieties for 1950
Here are crop varieties recommended for Iowa in 1950. Each one is backed by long and painstsaking experiment and research
Simulation of alnico coercivity
Micromagnetic simulations of alnico show substantial deviations from
Stoner-Wohlfarth behavior due to the unique size and spatial distribution of
the rod-like Fe-Co phase formed during spinodal decomposition in an external
magnetic field. The maximum coercivity is limited by single-rod effects,
especially deviations from ellipsoidal shape, and by interactions between the
rods. Both the exchange interaction between connected rods and magnetostatic
interaction between rods are considered, and the results of our calculations
show good agreement with recent experiments. Unlike systems dominated by
magnetocrystalline anisotropy, coercivity in alnico is highly dependent on
size, shape, and geometric distribution of the Fe-Co phase, all factors that
can be tuned with appropriate chemistry and thermal-magnetic annealing
A Report on the Seminar on Demand for Farm Products
This report includes papers presented and discussed at a seminar on demand for farm products, The seminar was sponsored by the Center for Agricultural Adjustment of the Division of Agriculture, Iowa State College, The seminar met for two hours per week for three months during the spring quarter. The seminar was organized to include about 60 members formally designated by the committee. These seminar members, as well as a formal discussant for each topic, evaluated the presentation at each session.https://lib.dr.iastate.edu/card_reports/1001/thumbnail.jp