The FDM demodulating characteristics of non-linear phase-locked loops

FDM demodulation characteristics of nonlinear phase locked loop

APPLICATIONS OF ESTIMABLE FUNCTIONS IN AGRICULTURAL RESEARCH WITH SPECIAL EMPHASIS ON THE GLM PROCEDURE OF SAS.

An understanding of estimable functions is essential when using an overparameterized linear model. The most attractive features of these functions are their invariance property to the solution vector and their wide range of practical applications in agricultural research. This study reviews some of the ways that estimable functions can be used by the agricultural scientist

Forage Crop Research: Evaluating Forage Species in Iowa for Productivity during Drought Conditions—Quality

The objective of this research is to evaluate the forage quality of forage species for their seasonal productivity differences and their ability to withstand droughty environmental conditions in Iowa

Forage Crop Research: Evaluating Forage Species in Iowa for Productivity during Drought Conditions

Drought often results in greater agricultural damage in southern, western, and northeastern Iowa than in the rest of the state. Slight to severe slopes are prone to erosion, and soils high in clay content are slow to drain excess moisture during wet periods and have low amounts of available moisture during periods of drought. The land is predominantly used for livestock production because of factors that limit level of productivity in row-crop production

Sequential Grazing Systems for Beef Cattle Production

Pasture productivity in Iowa is often limited by low productivity of cool-season grasses during summer. This uneven seasonal distribution of for age production could be improved by including species in pasture systems that perform better under higher temperatures. Warm-season grasses produce most of their growth during summer when cool-season grasses are semi -dormant. By using cool-season and warm-season pastures in a sequential system it should be possible to improve seasonal productivity. The overall objective of this project i s to evaluate the productivity of sequential grazing system s for beef cattle production in Southern Iowa. Specific objectives are to: 1) evaluate the impact of legumes on the productivity of cool-season pastures grazed in the spring and fall, 2) evaluate warm-season grasses f or summer grazing, and 3) determine the effects of pasture sequence on the productivity of season-long grazing systems

Sequential Grazing of Cool- and Warm-Season Pastures

Pasture productivity in Iowa often is limited by low productivity of cool-season grasses during summer. This uneven seasonal distribution of forage production could be improved by including species in pasture systems that perform better under higher temperatures. Warm-season grasses produce most of their growth during summer when cool-season grasses are semi-dormant. By using cool-season and warm-season pastures in a sequential system, it should be possible to improve seasonal productivity

Complementary grazing systems for beef cattle production

Pasture productivity in Iowa often is limited by the low yield of cool-season grasses in the summer. This project considers whether uneven seasonal distribution in pastures could be improved by including species that perform better under higher temperatures