Phantom helix states are a special set of degenerate eigenstates the XXZ Heisenberg model which lie in energy levels around zero and bidirectionally equal. In this work, we study state with Dzyaloshinskii-Moriya interaction (DMI). We show exactly that only one direction remain unchanged presence resonant DMI. Based on Holstein-Primakoff transformation, quantum spin is mapped to boson model, all...

The actual mechanisms occurring at interfaces underlying the Dzyaloshinskii-Moriya interaction (DMI) remain a question in nanomagnetism. In this study, we investigate origin of interfacial DMI, aiming estimating how independent DMI contributions two FM layer are and what their relative weight effective amplitude is. To aim, explore correlation between metal properties, namely, atomic number, el...

Dry matter intake (DMI) is fundamentally important in nutrition because it establishes the amount of nutrients available to an animal for health and production. Actual or accurately estimated DMI is important for the formulation of diets to prevent underfeeding or overfeeding of nutrients and to promote efficient nutrient use. Underfeeding of nutrients restricts production and can affect the he...

A simulation technique involving 100 hypothetical experiments (24 pens each for control and treated groups) for each of 3 cases was used to evaluate the statistical sensitivity of dietary NE concentrations calculated from performance data. In case 1, the treated population had a 12-kg increase in mean shrunk final BW (FBW) and no change in DMI; in case 2, the treated population had a 19-kg incr...

Since 1992 a number of lactating dairy cows (n 5 247) and beef steers (n 5 75) were offered grass silage-based diets in a range of feeding experiments and subjected to gaseous exchange measurements in calorimetric chambers at the Agricultural Research Institute of Northern Ireland. The objective of the present study was therefore to use the energy metabolism data from these studies to evaluate ...

Undi, M., Wilson, C., Ominski, K. H. and Wittenberg, K. M. 2008. Comparison of techniques for estimation of forage dry matter intake by grazing beef cattle. Can. J. Anim. Sci. 88: 693 701. Four techniques were compared for their ability to estimate forage dry matter intake (DMI) of grazing animals. In the Cage technique, 10 grazing cages were placed within each pasture, and forage inside and ou...