Accuracy of Measurement for Counting and Intensity-Correlation Experiments

A quantum-mechanical analysis is made of the experimental accuracy to be expected for particle-counting and intensity-correlation experiments. The mean-square fluctuation for an ensemble, consisting of a large number of experiments each conducted over a time interval T, is calculated

On the nonlinearities of inductors using linear ferrite toroidal cores

The importance of magnetic device characterization as an engineering design tool for inductors and transformers using linear ferrites is emphasized. A piecewise linear model is given for the permeance of a toroidal core, to bring into evidence the role of core geometry on partial saturation under the assumption of an ideally linear core material with abrupt saturation. A variety of measurements are reported for two different inductors under extremes of signal that partially saturate the cores. Measurements and theory are found to agree well only for low-level signals where hysteretic effects are small. At high signal levels the lack of quantitative agreement is attributed to the fact that different features of the hysteresis are probed by the different classes of measurement signals

Casework service with parents of delinquent adolescent clients.

Thesis (M.S.)--Boston Universit

Measurement of waste in concrete construction using lean construction methodologies

This dissertation develops and analyses the quantification of all wastes present in particular construction process. This has been conducted from a lean construction perspective where waste has been defined as any non-value adding process or activity. The specific processes chosen were concrete paving, hand-pouring concrete and the installation of formwork. The types of wastes present in the construction industry have been researched and a comprehensive list collated. A number of waste classifications have been evaluated to organise these wastes into manageable groups. These classifications were also selected on their usability and the potential techniques of measurement. A suitable format for waste reporting has been established and trialled in a construction environment. This has been evaluated by Professional Engineers in management positions within the construction industry. Due to the individual nature of construction projects there are significant inefficiencies in comparison to similar industries such as manufacturing. Of these wastes concrete construction has been deemed the largest contributor to wastage. This leads us to the question of how do we measure not only the materials wasted but the other types of waste in processes. This needs to be answered as efficiencies cannot be improved without the knowledge of where and how they are occurring. This project has been conducted utilising; theoretical research, practical on-site observations and by seeking industry feedback on the conclusions drawn from these investigations. The theoretical research took the form of a literature review on lean construction methodologies and types of ‘waste’. This focused on waste management and classification and how this has been applied to construction projects around the world. Practical on site observations were used to develop activity mapping and waste sampling which were used in the case studies for waste classification and quantification. From this a suitable format for waste reporting has been established and trialled in a construction environment. Industry feedback was sought in the form of structured interviews and an accompanying questionnaire. These interviews were conducted with four Engineering Managers working on a variety of large construction projects. From this evaluation improvements can be made to this structure and a future direction for this research has been determined. This research can be used as a base for lean construction waste reporting within the Australian construction industry. It has shown this it is both practical and useful to implement this reporting process on site. The dissertation has also identified the need for a cost/benefit analysis into waste reporting on construction sites to determine the efficiency of the process itself

Taking the learning beyond the individual:how reflection informs change in practice

OBJECTIVES: The purpose of this research was to explore the value of reflection and its application to practice through the implementation of educational modules within a new Diabetes Care and Education Master Degree Programme in Kuwait, and to realise how this teaching intervention informs changes in practice. METHODS: A small exploratory case study was conducted within the Dasman Diabetes Institute, Kuwait. A qualitative approach using focus group interviews was carried out with seventeen participants all of whom are studying on the Diabetes Care and Education Master Degree Programme in Kuwait. An inductive approach to thematic analysis, which focused on examining themes within data, was performed. RESULTS: The results indicate that participants value the opportunity to study through organised, structured and assessed reflection. The learning provides useful information and support to the participant by highlighting the role which reflection plays to enhance personal and professional development, the value of educational theory, continuing professional development, collaboration and enhancing patient education and practice. CONCLUSIONS: The significance of reflection is often seen in the literature as an important aspect of professional competence. This research has highlighted the value of reflection as a key component within a new educational programme

How Much is E-Commerce Worth to Rural Businesses?

The probability of a business paying for an e-commerce presence ultimately depends on demographic features, experiences with e-commerce, technological expertise, and knowledge of e-commerce opportunities and limitations. Results allow for the assignment of probabilities associated with various business profiles to determine the willingness to pay for an e-commerce presence.Research and Development/Tech Change/Emerging Technologies,

Website Usage Information for Rural-Based E-Commerce Start-Ups

Usage patterns for start-up agricultural and non-agricultural websites, as well as product and service oriented websites, were studied to determine differences in the number of unique visitors, usage based on the day and time of the week, total time spent on the website, and how the visitor found the website.Research and Development/Tech Change/Emerging Technologies,

Doppler Shift in Frequency in the Transport of Electromagnetic Waves through an Underdense Plasma

In an earlier publication, the validity of the radiation transport theory was studied for the calculation of multiple scattering of electromagnetic waves by a turbulent plasma. In the present paper, we extend the transport theory to include a description of the Doppler shift in frequency caused by electron motion