4,325 research outputs found
Technical Paper No. 2: Student Evaluation of Faculty Teaching Performance: Analysis of Four Years' Data
Student evaluation of faculty teaching performance has provided an important source of evidence in making faculty personnel decisions at Sangamon State University. Students have been asked to rate the competency and the teaching ability of their instructors; specifically, near the end of each term, students have rated faculty using the following two items: 1) Do you think this teacher is competent in the content or matter offered in this course? 2) Overall, do you consider this person a good teacher? The two items were administered from 1971 to 1975, and a record of the resultant data has been maintained. The research reported in this paper was motivated by a desire to look at the stability and reliability of the evaluations obtained from the two item evaluations over the four year period.The present paper reports on the amount of agreement between the ratings given on the teaching item and the ratings on the competency item. The effect of rewording the teaching item on the ratings is also reported.published or submitted for publicationis peer reviewe
Rotor-to-stator Partial Rubbing and Its Effects on Rotor Dynamic Response
Results from experimental and analytical studies on rotor to stationary element partial rubbings at several locations and their effects on rotor dynamic responses are presented. The mathematical model of a rubbing rotor is given. The computer program provides numerical results which agree with experimentally obtained rotor responses
Two-Mirror Apodization for High-Contrast Imaging
Direct detection of extrasolar planets will require imaging systems capable
of unprecedented contrast. Apodized pupils provide an attractive way to achieve
such contrast but they are difficult, perhaps impossible, to manufacture to the
required tolerance and they absorb about 90% of the light in order to create
the apodization, which of course lengthens the exposure times needed for planet
detection. A recently proposed alternative is to use two mirrors to accomplish
the apodization. With such a system, no light is lost. In this paper, we
provide a careful mathematical analysis, using one dimensional mirrors, of the
on-axis and off-axis performance of such a two-mirror apodization system. There
appear to be advantages and disadvantages to this approach. In addition to not
losing any light, we show that the nonuniformity of the apodization implies an
extra magnification of off-axis sources and thereby makes it possible to build
a real system with about half the aperture that one would otherwise require or,
equivalently, resolve planets at about half the angular separation as one can
achieve with standard apodization. More specifically, ignoring pointing error
and stellar disk size, a planet at ought to be at the edge of
detectability. However, we show that the non-zero size of a stellar disk pushes
the threshold for high-contrast so that a planet must be at least from its star to be detectable. The off-axis analysis of
two-dimensional mirrors is left for future study.Comment: 21 pages, 7 figures. For author's webpage version see
http://www.orfe.princeton.edu/~rvdb/tex/piaa/ms.pdf This version has improved
figures and addresses comments of a refere
Hydrogeology of the Little River Animal Agriculture Environmental Research Unit and Impacts of Dairy Operations on Groundwater
This thesis describes the development of an integrated hydrogeologic/hydrologic site assessment and groundwater/surface water quality monitoring program at the University of Tennessee – Little River Dairy Farm, located near Townsend, TN. Hydrologic/hydrogeologic investigations of streams and groundwater at the site have been underway for more than 5 years, and these are expected to provide background data for assessing impacts of dairy wastes. The lower half of the ~180 ha site consists of low-relief fields used for row crops, which are underlain by 4 – 9 m of alluvial deposits on top of black shale or limestone that include sinkhole features. The fields are bounded on two sides by the Little River and on the third side by Ellejoy Creek, which is on the state’s 303(d) list for impairment by nutrients, sediment and fecal microorganisms. These fields are now being fertilized with treated dairy wastes and are the main area of concern for offsite migration of contaminants through groundwater, drainage ditches and a tile drain system. Long term water quality monitoring of runoff, streams, drainage ditches and groundwater is planned, with the intent of measuring environmental impact of dairy operations and testing the effectiveness of different management practices.
Research findings indicate groundwater flow systems move toward the central ditch, Little River and Ellejoy Creek. Well hydrographs show rapid recharge in the floodplain. Geochemistry shows seasonal and short term variations, which are consistent with rapid recharge. Nitrate levels vary across the floodplain and in a few cases appear to be increasing slightly. E. coli is present before and after application of manure and major sinkholes could provide fast pathways to the Little River
An inquiry into the theory and current practice of accounting for depletion of wasting assets
This item was digitized by the Internet Archive
A THEOLOGY AND PRACTICE OF FOSTER CARE MINISTRY: AN INVESTIGATION INTO THE EFFECTIVENESS OF A CHURCH-BASED WRAPAROUND PROGRAM FOR FOSTER PARENTS
The purpose of this study was to evaluate the effectiveness of a new foster parent wraparound program at Journey Church in Kenosha, Wisconsin. The need for this program was found to be in alignment with the mission of God as seen in Isaiah 1:17, Acts 6, Romans 8, and James 1:27. The New Testament Church has a history of leading the way with innovative solutions to rescue orphans, and today, the church once again has the opportunity to lead the way in foster care solutions.
When Kenosha County leaders in the judicial, legal, and social services sector were recently asked how the church could help with foster care, they agreed that recruiting and supporting foster parents were the two largest needs. Therefore, the CompaCare Compassionate Care System of support was installed and studied at Journey Church with pre-study and post-study surveys. The results seem to indicate that Journey Church used this system with positive results after twelve months of implementation and experienced a positive shift in overall satisfaction of the foster care ministry by 25%. In addition, the number of foster parents who were determined to drop out in the upcoming year was reduced from 14% to 0% after support methods were applied. These two data points suggest local churches can positively impact stability and retention levels of foster parents through the CompaCare System of Compassion
Exploring Extensions Of Traditional Honeypot Systems And Testing The Impact On Attack Profiling
This thesis explores possibilities for extending the features of honeypot systems to decrease the chance of an attacker discovering that they have compromised a honeypot. It is proposed that by extending the period of time that an attacker spends on a honeypot oblivious to its status, more information relevant to profiling the attacker can be gained. Honeypots are computer systems that are deployed in a way that attackers can easily compromise them. These systems, which contain no production data, are useful both as early warning systems for attacks on production systems, and for studying the tools, techniques, and motives of attackers. Current honeypot systems mitigate the risks of running a honeypot by restricting out-bound traffic in a way that might be obvious to an attacker. The extensions proposed for honeypots will be tested in a controlled laboratory environment
The geology and occurrence of the lead and zinc ores of the Kennedy Mine near Hazel Green, Wisconsin
Ope
An inquiry into the theory and current practice of accounting for depletion of wasting assets
This item was digitized by the Internet Archive
Vulnerability Analysis Case Studies of Control Systems Human Machine Interfaces
This dissertation describes vulnerability research in the area of critical infrastructure security. The intent of this research is to develop a set of recommendations and guidelines for improving the security of Industrial Control System (ICS) and Supervisory Control and Data Acquisition systems software. Specifically, this research focuses on the Human- Machine Interface (HMI) software that is used on control panel workstations. This document covers a brief introduction to control systems security terminology in order to define the research area, a hypothesis for the research, and a discussion of the contribution that this research will provide to the field. Previous work in the area by other researchers is summarized, followed by a description of the vulnerability research, analysis, and creation of deliverables. Technical information on the details of a number of vulnerabilities is presented for a number of HMI vulnerabilities, for which either the author has performed the analysis, or from public vulnerability disclosures where sufficient information about the vulnerabilities is available. Following the body of technical vulnerability information, the common features and characteristics of known vulnerabilities in HMI software are discussed, and that information is used to propose a taxonomy of HMI vulnerabilities. Such a taxonomy can be used to classify HMI vulnerabilities and organize future work on identifying and mitigating such vulnerabilities in the future. Finally, the contributions of this work are presented, along with a summary of areas that have been identified as interesting future work
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