Multiple reflections in the water column often make the detection of deep seismic reflectors in oceanographic exploration very difficult. In this report we describe a novel method of modeling the unwanted feedback generating these multiples. This model formulates the removal of the multiples as a system-identification problem, and uses the maximum-likelihood method of statistics to derive an al...

24.1.1 Coherent, Free-Electron Radiation Sources The primary objective of the group is to develop a basic experimental and theoretical understanding of coherent generation by free electrons for wavelengths in the 1 Ym to 10 cm range. Particular emphasis is placed on free electron lasers, Cerenkov sources, relativistic magnetrons, and other novel radiation sources. The experiments are carried ou...

Knowledge sharing has been considered a significant component of success in Knowledge Management (KM). However, in most organizations KM is often inadequate when it comes to knowledge sharing. In order to encourage knowledge sharing using Web technology, it is important to know why staff do or do not use web based knowledge sharing systems (WKSS), when communicating internally and sharing knowl...

The objectives of this study are to assess the psychometric properties of an adapted version of the Maslach Burnout Inventory-General Survey (MBI-GS) for academic staff in South African higher education institutions and to investigate differences between the burnout levels of different demographic groups. A survey design was used, with stratified random samples (N = 595) taken of academics in s...

As a natural development of our scattering and maser experiments, we have initiated work on the interactions of atoms in excited states. Many new and interesting experiments appear now to be feasible, because of recent developments in atomic beams and lasers. We describe in the present report plans for one such experiment: measurement of the energy dependence of an alkali fine-structure transfe...

The Digital Signal Processing Group is carrying out research in the general area of signal processing. In addition to specific projects handled on campus, there is close interaction with Lincoln Laboratory and the Woods Hole Oceanographic Institution. While a major part of our activities focuses on the development of new algorithms, there is a strong conviction that theoretical developments mus...

The quantity To is of the order of a lattice vibration period, that is, -10 1 2 sec. (Steiner 1 and Gyftopoulos have recently reported theoretical estimates of the desorption energies of halogen atoms on (110) tungsten, the values being 4. 49 eV for F, 3. 53 eV for Cl, 2.94 eV for Br, and 2.45 eV for I.) Equation 1 is plotted in Fig. IX-l for T = X 10 1 2 se and several values of E d . It can b...

Our objective was to implement a directorate research strategy to improve and grow clinical academic capacity and capability and ensure that the organisational systems and processes enabled clinical staff and managers to increase grant capture, undertake clinically relevant research, including the adoption of NIHR portfolio sites and established a culture in which research was an accepted part ...