TIM MARSHALL: PRISONERS OF GEOGRAPHY STUDY GUIDE, 2017

Study Guid

The Use of AIS Data for Identifying and Mapping Calcareous Soils in Western Nebraska

The identification of calcareous soils, through unique spectral responses of the vegetation to the chemical nature of calcareous soils, can improve the accuracy of delineating the boundaries of soil mapping units over conventional field techniques. The objective of this experiment is to evaluate the use of the Airborne Imaging Spectrometer (AIS) in the identification and delineation of calcareous soils in the western Sandhills of Nebraska. Based upon statistical differences found in separating the spectral curves below 1.3 microns, calcareous and non-calcareous soils may be identified by differences in species of vegetation. Additional work is needed to identify biogeochemical differences between the two soils

Electron energy analyzer

Electrostatic deflection analyzer with three spherically concentric grids allows production of electrons within a small volume at the center of the inner sphere. By applying a retarding potential between the middle and inner spheres, the energies of the electrons can be measured

Competitive effects between stationary chemical reaction centres: a theory based on off-center monopoles.

The subject of this paper is competitive effects between multiple reaction sinks. A theory based on off-center monopoles is developed for the steady-state diffusion equation and for the convection-diffusion equation with a constant flow field. The dipolar approximation for the diffusion equation with two equal reaction centres is compared with the exact solution. The former turns out to be remarkably accurate, even for two touching spheres. Numerical evidence is presented to show that the same holds for larger clusters (with more than two spheres). The theory is extended to the convection-diffusion equation with a constant flow field. As one increases the convective velocity, the competitive effects between the reactive centres gradually become less significant. This is demonstrated for a number of cluster configurations. At high flow velocities, the current methodology breaks down. Fixing this problem will be the subject of future research. The current method is useful as an easy-to-use tool for the calibration of other more complicated models in mass and/or heat transfer

Enabling access to effective mentor support: evaluation of mentoring modules to inform blended learning design

With the drive for professionalisation of the workforce and 30 hours CPD, time issues are coming evermore to the fore. Using technology to maximise productivity within the time constraints, more and more institutions are turning on e-learning. However, it is also recognised that e-learning is not necessarily the most appropriate way for effective learning to occur and that blended models might be better

Enabling access to effective mentor support: ITT mentoring support available across a range of work-based learning providers

The research explores the nature of six small work-based learning providers in London and contrasts them to further education colleges. It identifies the complexities of the sector and the issues facing providers in supporting their own staff who need mentoring as part of their initial teacher training