Amplifying ribbon extensometer

Device provides accurate measurement of strain on flexible membranes and fabrics. It is compact and lightweight, has strain-amplification capability up to five, and has an accuracy better than one percent

Amplifying ribbon extensometer

A self-contained, nonelectrical strain gage capable of amplifying strain inputs and preserving the maximum strain measurement for later observance is presented

Nozzle extraction process and handlemeter for measuring handle

Method and apparatus for quantitatively measuring the handle of fabrics and other flexible materials is presented. Handle is that term used to refer to the qualities of drapability, flexibility, compressibility, foldability, stretchability, pliability, etc., possessed by fabrics and other flexible materials. In the present invention the handle of a material sample is quantified by measuring the force required to draw the sample through an orifice and expressing the resultant extractive force as a function of test apparatus geometry and the amount of sample drawn through the orifice to arrive at quantitative measure of handle, to be defined as handle modulus, for the sample in question

A Survey of Choral Ensemble Memorization Techniques

Choral ensembles memorize music for concerts and other performances. Previous research in memorizing musical material is mostly anecdotal and primarily applied to individual instrumentalists. Research in choral memorization is nonexistent. This study aimed to systematically find out what memorization techniques are used in choral ensemble settings and to examine them based on existing literature in music memorizing. A survey was sent to choral directors and teachers in Southeast Georgia, collecting data on whether or not choral ensembles memorize their music and why, specific memorization techniques, and the aspects of memorization that present challenges for ensemble members. Fourteen choral directors and teachers completed the survey and identified multiple strategies for choral ensemble memorization. A list of recommended choral ensemble memorization techniques concludes the study

Logistics regression to determine the influence of Bean and Metzner's persistence factors as defined by the Community College Survey of Student Engagement (CCSSE) on nontraditional students

Title from PDF of title page (University of Missouri--Columbia, viewed on October 18, 2012).The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.Dissertation advisor: Dr. Phillip MessnerVita.Ed. D. University of Missouri-Columbia 2012."May 2011"The purpose of this study was to explore Bean and Metzner's (1985) persistence factors, defined by items on the Community College Survey of Student Engagement (CCSSE), to determine the impact on nontraditional student persistence. This quantitative study measured nontraditional student persistence at a community college in the Midwest using archival data. Independent variables included select CCSSE items that related to variables identified by Bean and Metzner (1985) in their Model of Nontraditional Undergraduate Student Attrition. The dependent variable was persistence. Data were analyzed using a validity panel, descriptive statistic analysis, chi square tests, and logistic regression. Chi square tests revealed four CCSSE items to be statistically significant, while logistic regression found no statistical significance. Results indicate that Bean and Metzner's (1985) factors did not predict persistence. In addition, CCSSE was not found to discriminate between persistence and non-persistence for nontraditional students. The study concludes that there is no profile of the nontraditional student.Includes bibliographical reference

Performance and Competence of Learning Disabled and High-Achieving High School Students on Essential Cognitive Skills

This research was published by the KU Center for Research on Learning, formerly known as the University of Kansas Institute for Research in Learning Disabilities.This study was designed to measure performance differences of learning disabled and high-achieving high school students judged crucial to academic learning and to determine teacher performance standards on those same crucial learning skills, Results showed that high achievers performed significantly batter than LD students across the complex, and within every domain, of learning skills assessed. In addition, significantly greater proportions of LD students fall below teacher-derived standards of minimal competence in all skill areas assessed than do high-achieving students

Benefits of Implementing Automated Costing in a Small Machine Shop: A Case Study

Knowledge based cost estimating systems are available, but is there a lower limit to their applicability in an industrial environment?  This paper answers this question by examining a knowledge based cost estimating expert system application in a small machine shop.  Differences between the traditional experienced-based system currently employed and the automated system are studied.  Data is gathered to analyze time effectiveness, accuracy, and payback of the software.  Data from seventy part models is recorded to study the time experiment and data from fifty part models is used to study accuracy and consistency.The results indicate that the software is faster than traditional quoting systems; however, the payback point is high. Also, results show that the software has a smaller average time to manufacture percent difference between the automated system and the actual time to manufacture (TTM) compared to the percentage difference between the traditional TTM and actual TTM. Standard deviation for the automation is also less, implying better consistency.  As a result, the attractiveness of the automated system in the limiting case of a small machine shop rests with significantly improved accuracy and consistency rather than payback.

Cosmological test of the Yilmaz theory of gravity

We test the Yilmaz theory of gravitation by working out the corresponding Friedmann-type equations generated by assuming the Friedmann-Robertson-Walker cosmological metrics. In the case that space is flat the theory is consistent only with either a completely empty universe or a negative energy vacuum that decays to produce a constant density of matter. In both cases the total energy remains zero at all times, and in the latter case the acceleration of the expansion is always negative. To obtain a more flexible and potentially more realistic cosmology, the equation of state relating the pressure and energy density of the matter creation process must be different from the vacuum, as for example is the case in the steady-state models of Gold, Bondi, Hoyle and others. The theory does not support the cosmological principle for curved space K =/= 0 cosmological metrics

Conformational Preferences of 3-(Dimethylazinoyl)propanoic Acid as a Function of pH and Solvent; Intermolecular versus Intramolecular Hydrogen Bonding

The conformational equilibrium of 3-(dimethylazinoyl)propanoic acid (DMAPA, azinoyl = N^+(O^−) has a weak pH-dependence in D_2O, with a slight preference for trans in alkaline solutions. The acid ionization constants of the protonated amine oxide and carboxylic functional groups as determined by NMR spectroscopy were 7.9 × 10^(−4) and 6.3 × 10^(−6), respectively. The corresponding value of K_1/K_2 of 1.3 × 10^2 is not deemed large enough to provide experimental NMR evidence for a significant degree of intramolecular hydrogen bonding in D_2O. Conformational preferences of DMAPA are mostly close to statistical (gauche/trans = 2/1) in other protic solvents, e.g., alcohols. However, the un-ionized form of DMAPA appears to be strongly intramolecularly hydrogen-bonded and gauche in aprotic solvents

Four-nucleon scattering: a new numerical approach

The AGS equations are solved for $n{}^3\mathrm{H}$ and $p{}^3\mathrm{He}$ scattering including the Coulomb interaction. Comparison with previous work confirms the accuracy of the calculation and helps clarify a number of issues related to the $n{}^3\mathrm{H}$ total cross section at the peak of the resonance region, as well as an $A_y$ deficiency in $p{}^3\mathrm{He}$. Calculations are fully converged in terms of $NN$ partial waves and involve no uncontrolled approximations.Comment: To be published in proceedings of the 18th International IUPAP Conference on Few-Body Problems in Physics, Santos, 21-26 August 200