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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Bayesian quadrature and Bayesian rescaling

Kennedy, Marc January 1996 (has links)
No description available.
2

KUO, CHARNG-ER 19 June 2000 (has links)
No description available.
3

Integrating Information Technology into Elementary Science Class: A Case Study of Teacher knowledge transformation into action

Hsu, Wen-Hua 01 July 2003 (has links)
This research observes a science teacher¡¦s first experiment of technology integration into teaching. Data are also collected from interviews with the teacher and students. This case study aims to 1) depict what it means to an elementary school teacher to integrate information technology into teaching, 2) observe during the teaching process what preparation a teacher did, what problems one encountered, and what adjustments to make afterwards, 3) analyze actions a teacher took to integrate information technology and the meaning behind the actions, 4) clarify the role of knowledge transformation played in the process of technology integration into teaching. Based on one-semester observations and interviews, the data coding and interpretation suggests the following four findings: 1. The significance of technology integration into teaching lies in creating circumstances for students¡¦ critical thinking and the evaluation of information instead of emphasizing the use of information technology as indispensable tools for teaching and learning. 2. Before integration, the impact factors are a teacher¡¦s competences in effective search for WWW resources search and in relating resources with teaching materials. In the midst of the integration process, obstacles include the timing for integration, the characteristics of interdisciplinary subjects, students¡¦ computer literacy and the improper motivations for technology integration. After the integration process, the primary modification for the case study teacher is to adjust the sequence of teaching process to match his own computer class schedule. 3. Overall, in the process of technology integration, actions are the combinations of a teacher¡¦s beliefs and other incidents happened in the process. The actions mean the assimilation and transformation of a teacher¡¦s beliefs and the expectation of teaching. 4. The more the teacher knowledge is transformed into action, the more the teacher knowledge become solid. The future study is suggested to focus on how the teacher¡¦s teaching competences and experiences can combined with information technologies as well as to explore elements of effective teaching methods and models for technology integrated instruction.
4

Dual Processing Spatially Distributed Integrating Fiber Optic Sensors for Non-intrusive Patient Monitoring

Xu, Xiaohua 04 May 2005 (has links)
Given the rapid aging of the worldâ s population, improvements in technology for automation of patient care and documentation are badly needed. This project is based on previous research that demonstrated a â smartâ bed that can non-intrusively monitor a patient in bed and determine a patient's respiration, heart rate and movement without intrusive or restrictive medical measurements. The â smartâ bed is an application of spatially distributed integrating fiber optic sensors. The basic concept is that any patient movement that also moves an optical fiber within a specified area will produce a change in the optical signal. A statistical mode (STM) sensor and a high order mode excitation (HOME) sensor were previously investigated, based on which the author developed the present design including both modal modulation approaches. Development was made in both hardware and software for the combined STM/HOME sensor: a special lens system was installed allowing only the high order modes of the optical fiber to be excited and coupled into the sensor; computer-processing method was used for handling output from the dual STM-HOME sensor, which would offer comprehensive perturbation analysis for more reliable patient monitoring. Experimental results of simulating human body breathing and heartbeats by periodic mechanical perturbations are also presented, and the relative advantage and drawbacks of the two modal modulation approaches are discussed. / Master of Science
5

Upgrading a Broad Area Illuminating Integrating Sphere and Solar Transmittance Measurement of a Sheer Blind

Halder, Victor 19 February 2008 (has links)
Shading devices are frequently used to control solar gain through windows. Solar optical properties are very important in the energy analysis of windows. Transmittance, absorptance and reflectance are required to quantify solar heat gain through complex fenestration systems, which consist of combinations of glazing and shading layers. In this research the solar transmittance of a sheer blind was measured using a Broad Area Illuminating Integrating Sphere (BAI-IS). More specifically, the spectral directional-hemispherical transmittance was measured in the wavelength range of 0.4 µm to 2.0 µm. A “sheer blind” consists of soft fabric vanes, similar to a venetian blind, suspended between two vertical layers of sheer fabric. This arrangement is popular because it is attractive and it has potential application for daylighting. The vertical sheer fabric reduces the solar intensity and diffuses incident radiation; generally reducing solar gain and producing soft, natural illumination. The fabric vanes control the amount of light entering the room. Shading devices such as venetian blinds, sheer blinds and drapes have spatially non-uniform and light scattering surfaces. Hence, measurement error occurs if the solar optical properties are measured by traditional narrow-beam measurement techniques typically used in commercial spectrophotometers. To reduce this error, a BAI-IS is recommended. The BAI-IS apparatus consists of a 20-inch diameter integrating sphere, sample mounting system, monochromator, radiant source, lock-in-amplifier, photo sensor, optical chopper and various auxiliary devices. In order to improve reliability of the measurement the BAI-IS has recently been upgraded by replacing most of the key control and measurement equipment. The refurbishment of the BAI-IS apparatus was successful. The directionalhemispherical transmittance of a sheer blind from BAI-IS measurement was found to agree well with an analytical model.
6

Upgrading a Broad Area Illuminating Integrating Sphere and Solar Transmittance Measurement of a Sheer Blind

Halder, Victor 19 February 2008 (has links)
Shading devices are frequently used to control solar gain through windows. Solar optical properties are very important in the energy analysis of windows. Transmittance, absorptance and reflectance are required to quantify solar heat gain through complex fenestration systems, which consist of combinations of glazing and shading layers. In this research the solar transmittance of a sheer blind was measured using a Broad Area Illuminating Integrating Sphere (BAI-IS). More specifically, the spectral directional-hemispherical transmittance was measured in the wavelength range of 0.4 µm to 2.0 µm. A “sheer blind” consists of soft fabric vanes, similar to a venetian blind, suspended between two vertical layers of sheer fabric. This arrangement is popular because it is attractive and it has potential application for daylighting. The vertical sheer fabric reduces the solar intensity and diffuses incident radiation; generally reducing solar gain and producing soft, natural illumination. The fabric vanes control the amount of light entering the room. Shading devices such as venetian blinds, sheer blinds and drapes have spatially non-uniform and light scattering surfaces. Hence, measurement error occurs if the solar optical properties are measured by traditional narrow-beam measurement techniques typically used in commercial spectrophotometers. To reduce this error, a BAI-IS is recommended. The BAI-IS apparatus consists of a 20-inch diameter integrating sphere, sample mounting system, monochromator, radiant source, lock-in-amplifier, photo sensor, optical chopper and various auxiliary devices. In order to improve reliability of the measurement the BAI-IS has recently been upgraded by replacing most of the key control and measurement equipment. The refurbishment of the BAI-IS apparatus was successful. The directionalhemispherical transmittance of a sheer blind from BAI-IS measurement was found to agree well with an analytical model.
7

Measuring optical absorption coefficient of pure water in UV using the integrating cavity absorption meter.

Wang, Ling 10 October 2008 (has links)
The integrating cavity absorption meter (ICAM) has been used successfully to measure the low absorption coefficient of pure water. The ICAM produces an effective total path length of several meters or even longer, although the physical size of the instrument is only several centimeters. The long effective total path length ensures a high sensitivity that enables the ICAM to measure liquid mediums with low absorption. Compared to the conventional transmission type of instruments that were used to measure the same medium with the same path length, the ICAM eliminates the effect of scattering by introducing isotropic illumination in the medium, and consequently measures the true absorption coefficient of the medium in stead of the attenuation coefficient. The original ICAM was constructed with Spectralon and used in the wavelength range from 380 nm to 700 nm. Later studies showed that Spectralon is not suitable for measurements in the UV region because of its relatively lower reflectivity in this region and, even worse, the continuously decaying reflectivity under the exposure to UV radiation. Thus, we have developed a new way to construct the ICAM utilizing the material fumed silica. The resulting ICAM has a high sensitivity even in the UV region and doesn't have the deterioration problem. The measurement results from the new ICAM are in good agreement with the existing results. The absorption coefficients of pure water at wavelengths between 250 nm and 400 nm are presented here.
8

An Application for Downloading and Integrating Molecular Biology Data

Fontaine, Burr R. 24 August 2005 (has links)
Submitted to the faculty of the University Graduate School in partial fulfillment of the requirements for the degree Master of Sciences in the School of Informatics Indiana University July 2004 / Integrating large volumes of data from diverse sources is a formidable challenge for many investigators in the field of molecular biology. Developing efficient methods for accessing and integrating this data is a major focus of investigation in the field of bioinformatics. In early 2003, the Hereditary Genomics division of the department of Medical and Molecular Genetics at IUPUI recognized the need for a software application that would automate many of the manual processes that were being used to obtain data for their research. The two primary objectives for this project were: 1) an application that would provide large-scale, integrated output tables to help answer questions that frequently arose in the course of their research, and 2) a graphic user interface (GUI) that would minimize or eliminate the need for technical expertise in computer programming or database operations on the part of the end-users. In early 2003, Indiana University (IU), IBM, and the Indiana Genomics Initiative (INGEN) introduced a new resource called Centralized Life Sciences Data Services (CLSD). CLSD is a centralized data repository that provides programmatic access to biological data that is collected and integrated from multiple public, online databases. METHODS 1. an in-depth analysis was conducted to assess the department's data requirements and map these requirements to the data available at CLSD 2. CLSD incorporated new data as necessary 3. SQL was written to generate tables that would replace the targeted manual processes 4. a DB2 client was installed in Medical and Molecular Genetics to establish remote access to CLSD 5. a graphic user interface (GUI) was designed and implemented in HTML/CGI 6. a PERL program was written to accept parameters from the web input form, submit queries to CLSD, and generate HTML-based output tables 7. validation, updates, and maintenance procedures were conducted after early prototype implementation RESULTS AND CONCLUSIONS This application resulted in a substantial increase in efficiency over the manual methods that were previously used for data collection. The application also allows research teams to update their data much more frequently. A high level of accuracy in the output tables was confirmed by a thorough validation process.
9

Teachers' and Principals' Perceptions of Precursors to Integrating Academic and Career and Technical Education

Taylor, Crystal Berry 12 June 2001 (has links)
The new federal legislation focusing on student achievement, critical reports of the public educational system, and the artificial distinction between academic and career and technical education, have combined to create an urgent need for the integration of academic and career and technical education (Finch & Crunkilton, 1999). The literature suggests that integration is one alternative to raising student achievement of all students and helps to prepare them for the workplace (Benson, 1989; Lankard, 1994; Brown, 1998; Stasz, Kaganoff, & Eden, 1994). The purpose of this study was to determine the extent to which teachers and principals in HSTW sites perceive precursors (consisting of integration strategies and conditions) to integrate academic and career and technical education are present in their schools. In addition, comparisons of perceptions were examined based on school type, school size, and school location. The sample included 168 academic and career and technical education teachers and 36 principals from 36 HSTW sites in Virginia. Based on the findings from the factor analysis, precursors to integrate academic and career and technical curricula can be grouped into two relatively coherent latent factors: collaboration and academic skill preparation. Multivariate analysis of variance (MANOVA) revealed that there were significant differences in the perceptions of teachers and principals. The multivariate analysis of variance also revealed significant differences based on school type only. Recommendations were made to assist teachers and principals to devise a plan to identify integration precursors that teachers perceive are not present in their schools. This information will be useful to principals and educational leaders for evaluating integration activities so they can provide support and guidance to increase integration activities in schools. / Ph. D.
10

Integrating the Female into Medicine

Blackwelder, Reid B. 01 April 2000 (has links)
No description available.

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