With the increasing interest in the indoor air environment over the last 30 years has come the need for control devices that can improve the quality of air that people breath. To answer this need, many devices have been developed and are currently in use. This thesis utilizes Ultra-violet light to eradicate the bacteria. A portable unit was constructed that contains the light bulb and fan. Two different trials were conducted: Controlled Laboratory trials and Fish Culture Room Trials. The Controlled Laboratory Experiments were conducted in order to test the effect that the Ultra-violet unit had on known cultures of bacteria while the Fish Culture Room Trials were conducted to test the chambers affect on a real indoor situation. The Ultra-violet unit was effective in eradicating the known cultures that were tested, and was less effective in the real indoor setting. As the density of bacteria increased, the effectiveness of the chamber increased, for the real indoor setting. The contact time of the chamber could be adjusted to improve effectiveness. More testing is necessary to fully evaluate the potential of a portable Ultra-violet disinfection chamber. / Master of Science

International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California / The Royal Australian Navy (RAN) Sonar and Ranges Group (S&RG) office has a requirement to provide a dual weapon capable Mobile Missile Telemetry Range (MMTR) and data analysis system to upgrade their Jervis Bay Range telemetry ground station for supporting at-sea testing of air and surface launched guided weapon, decoy, and target systems. This paper describes the design and development of the MMTR and data analysis system used to support the Jervis Bay Range and the acquisition strategy used to procure the system. Unique design features of the MMTR system include a dual use packaging scheme which permits the system to be transported to any suitable land based location or deployed as two independent shipboard telemetry receiving systems. In addition, the paper describes antenna, receiver, recording, matrix switching, processing, display, and communication subsystem components used within the MMTR system.

published_or_final_version / Computer Science and Information Systems / Master / Master of Philosophy

There are convincing arguments for the integration of computer applications into school programmes to support the learning of students. After more than 30 years of increasing investment in educational computing researchers are concerned that there has been very little impact on the experiences of students in schools. In the 1990s, a significant development in computer technology has been the emergence of low-cost, high-powered portable computers which some schools have introduced into classrooms. It is not clear what the impact of this development might be.This study addressed issues concerning the impact of student-owned, portable computers on students, teachers, the curriculum, and the classroom learning environment. It considered the classroom learning environment as the complex set of relationships between students, teachers, the curriculum, and the technology (principally computer hardware and software) within the physical confines of a classroom.The three year study was carried out at one girls' school, which progressively introduced portable computers into its secondary education program-me. The study used an interpretive methodology involving the collection of a range of qualitative and quantitative data. In each year of the study, data were collected about students, teachers and a selection of classrooms using observations of lessons, interviews, questionnaires, and a range of data obtained from the school's administration. As the study progressed, it focussed on those features of the psycho-social environment of the school which emerged as important from interpretation of data collected earlier.The study found that, apart from isolated teacher-class combinations, there was very little change at the classroom level which could be attributed to the presence of the computers. Very few teachers implemented substantial computer use and many of those who did, ++ / supported only a very limited role for the computers. While most students expressed a range of concerns, only a perceived lack of use of the computers appeared to have a consistent negative influence on their attitudes and behaviours.It is argued that the lack of use of the computers is largely related to teachers' preferred pedagogy, their lack of experience and knowledge in using computers in the classroom, and a lack of time to experiment with computer applications. Increasingly, the teachers who chose to facilitate the use of the computers did so to support predominantly student-centred learning environments. The study proposed a model to describe and explain teachers' responses to the portable computer program in terms of their facilitation of computer use by considering sets of forces and obstacles experienced by them.The findings of this study have important implications for educational policy makers, administrators and teachers, and enable a clearer understanding of the factors which determine the successful implementation of computers into school programmes to support student learning.NOTE: Referencing style used throughout this thesis report comes from the American Psychological Association's manual, fourth edition (1994).

Thesis (M.S.)--West Virginia University, 2007. / Title from document title page. Document formatted into pages; contains xi, 232 p. : ill. (some col.), col. maps. Includes abstract. Includes bibliographical references (p. 193-195).

<p>Subsequent to a difficult surgery or a sever injury to the lower part of the body, often partial </p><p>load bearing is needed to stimulate an optimal rehabilitation. Today, this is achieved by teaching </p><p>the patient the optimal load by iteration. This has been shown insufficient for many patients, due </p><p>to their difficulties of remembering the correct amount of load. Furthermore, patients who lack </p><p>proprioception are unable to feel the load. </p><p> </p><p>A portable measuring system would enhance the patient possibility of optimal loadings. This </p><p>thesis has two main objects. 1. A study of the state of the art on existing commercial system, </p><p>related patents and measuring techniques. 2. A new measuring technique, which is the part that </p><p>most of all determine the system performance, was developed. A new design, using off the shelf, </p><p>products is proposed. </p><p> </p><p>The design uses a finite number of thin sensors placed onto an insole. By placing the sensors at </p><p>the plantar pressure points most of the total load is captured by the insole setups. To compensate </p><p>for the measuring error fitting methods were evaluated. The result depends on the insole </p><p>calibration methods. The best result without individual calibration is: mean error for the group of </p><p>0.5% of the total patient load and a deviation of 24%. With individual calibration reduces the </p><p>deviation to about 12%.</p>

<p>Portable stream programming language (PSPL) is a language for baseband application</p><p>programming on reconfigurable architectures. The first step in its development has been</p><p>completed. A parser has been provided for the front end of the PSPL compiler. The syntax</p><p>of the language has been fixed to allow for easy parses. The scanner and the parser</p><p>where generated using automatic tools (scanner and parser generators) which rely on</p><p>complex mathematical algorithms for their generation. Abstract syntax (data structures</p><p>that preserve the source program so that program structure is evident) was implemented</p><p>for the parser using a syntax separate from interpretation style of programming. Tests were</p><p>carried out to ensure that the correct data structures were generated. The final outcome</p><p>is a parser that other phases of the compiler can depend on for onward transmission of</p><p>the source program in an unambiguous manner. The development of subsequent phases</p><p>of the compiler will form the next logical step in the processes of transforming PSPL to</p><p>a stand alone language.</p>

Subsequent to a difficult surgery or a sever injury to the lower part of the body, often partial load bearing is needed to stimulate an optimal rehabilitation. Today, this is achieved by teaching the patient the optimal load by iteration. This has been shown insufficient for many patients, due to their difficulties of remembering the correct amount of load. Furthermore, patients who lack proprioception are unable to feel the load. A portable measuring system would enhance the patient possibility of optimal loadings. This thesis has two main objects. 1. A study of the state of the art on existing commercial system, related patents and measuring techniques. 2. A new measuring technique, which is the part that most of all determine the system performance, was developed. A new design, using off the shelf, products is proposed. The design uses a finite number of thin sensors placed onto an insole. By placing the sensors at the plantar pressure points most of the total load is captured by the insole setups. To compensate for the measuring error fitting methods were evaluated. The result depends on the insole calibration methods. The best result without individual calibration is: mean error for the group of 0.5% of the total patient load and a deviation of 24%. With individual calibration reduces the deviation to about 12%.

Portable stream programming language (PSPL) is a language for baseband application programming on reconfigurable architectures. The first step in its development has been completed. A parser has been provided for the front end of the PSPL compiler. The syntax of the language has been fixed to allow for easy parses. The scanner and the parser where generated using automatic tools (scanner and parser generators) which rely on complex mathematical algorithms for their generation. Abstract syntax (data structures that preserve the source program so that program structure is evident) was implemented for the parser using a syntax separate from interpretation style of programming. Tests were carried out to ensure that the correct data structures were generated. The final outcome is a parser that other phases of the compiler can depend on for onward transmission of the source program in an unambiguous manner. The development of subsequent phases of the compiler will form the next logical step in the processes of transforming PSPL to a stand alone language.

In this thesis, a portable PEMFC stack, which can directly power or charge 3C products, will be developed. The stack is developed for portable applications, so the structure of the stack is simplified as possible as we can. The PEMFC stack is made with 32 carbon fiber bunches for current collectors and two 8-cell banded-type MEAs which are made with 8 sets of electrodes on a piece of membrane. The stack can develop a high voltage by serially connecting 8 cell or 16 cell outside of the reaction chamber. The resistance of each carbon bunch assembling with carbon cloth is measured before they are assembled into the stack. Under assembly pressure 3 bar, the total resistance is about 8.7m£[ or 11m£[¡Ecm2. The resistance is about one half of that graphite plate assembling with carbon cloth. Without being compressed greatly in diffusion layer, the fluid can easily flow through the gaps between carbon fiber and within diffusion layers, and then the reactive region will react more uniformly. In addition, the connecting wires are assembled to a wire collecting board, so that the stack is look more neat, and it easier assemble or dissemble. In this thesis, the volume of the developed 16-cell hydrogen fuel cell stack is about 9.6 cm*6.3 cm*2.2 cm. The total electrode area is 50 cm2 (16-cell¡Ñ3.15 cm2 per cell). When the stack is operating at room temperature and air-breathing, an 8-cell stack in series connection can generate 3.7V voltage. Its power at voltage 3.7V is about 3.6W. It can directly power PDAs, mobile phones or digital cameras. A 16-cell stack in series connection can generate 7.2V voltage. Its power at this voltage can offer 7W. The 16-cell stack can directly power digital single-lens reflex cameras. If two or more of this stack are connected in series, it will be able to power a notebook or other more power products.