7,821 research outputs found

    Development of a Scenic Design for \u3cem\u3eBus Stop\u3c/em\u3e by William Inge

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    A warm and cozy visual sensation and early 1900s architecture provided the basis for this design. It features an intimate space with a comfortable interior where all the characters gather to tell their stories. This approach was shaped by repeated references to bitter cold, blizzard-like weather outside the building in which the play Bus Stop takes place, with the interior providing a safe haven from the ferocious weather and the lonesomeness felt by the characters who find themselves at this bus stop. The visual approach was pursued through a warm color palette and use of William Inge\u27s description of Grace\u27s Diner as a “dingy, street-corner building in a small Kansas town” with a “few antique set dressings and a few modern improvements. Since the play takes place during the early 1950s, the modern improvements Inge references were based on that era. Warm and cozy spaces are usually ones that have been heavily lived in. Therefore, in Grace\u27s establishment the history of the building and its users is noticeable throughout the space with obvious modern improvements added only when absolutely necessary. This design was created for Linfield\u27s Scene Design course. At the 2016 Kennedy Center American College Theatre Festival Region VII Conference in Denver, Colorado, the design and associated poster presentation received a Meritorious Achievement Award in the Non-Realized Scenic Design division

    A Scenic Design for \u3cem\u3eTalley\u27s Folly\u3c/em\u3e

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    This poster showcases a scenic design for Talley’s Folly by Lanford Wilson. The play takes place in a riverside boathouse located near a farm in Lebanon, Missouri, on July 4, 1944. In developing the design concept, I pursued the Victorian and Gothic revival gingerbread imagery and romantic aesthetic Wilson created within the script. During my early research, I found Thomas W. Schaller’s paintings Evening in Spring and Fishing in Central Park. Schaller’s blending of watercolors inspired the romantic aesthetic and unification of the landscape’s colors, textures, and inorganic and organic structures. The way in which Schaller conveys peace, seclusion, and nature very much influenced the design. Evening skies and earthy tones determined the color scheme. The gazebo’s hexagonal shape influenced the symmetrical, central, and simple layout of scenery, with the riverside open to the audience in thrust formation. The turntable provides a unique element in the design. Moving very slowly throughout Matt’s opening monologue, the physical change mirrors the movement of the text and facilitates the transition from the exterior of the boathouse to an interior view that focuses the fourth-wall staging of the rest of the play. Presented at the 2017 Kennedy Center American College Theatre Festival Region VII Conference in Denver, Colorado, the design model and associated poster received a Meritorious Achievement Award in the Non-Realized Scenic Design division

    Information in vertical blanking interval of video sync signal

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    In a television sync signal one or more of the post-equalizing pulses of the vertical blanking interval is/are altered in duration to provide information to a receiving circuit

    Scaling Analysis and Evolution Equation of the North Atlantic Oscillation Index Fluctuations

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    The North Atlantic Oscillation (NAO) monthly index is studied from 1825 till 2002 in order to identify the scaling ranges of its fluctuations upon different delay times and to find out whether or not it can be regarded as a Markov process. A Hurst rescaled range analysis and a detrended fluctuation analysis both indicate the existence of weakly persistent long range time correlations for the whole scaling range and time span hereby studied. Such correlations are similar to Brownian fluctuations. The Fokker-Planck equation is derived and Kramers-Moyal coefficients estimated from the data. They are interpreted in terms of a drift and a diffusion coefficient as in fluid mechanics. All partial distribution functions of the NAO monthly index fluctuations have a form close to a Gaussian, for all time lags, in agreement with the findings of the scaling analyses. This indicates the lack of predictive power of the present NAO monthly index. Yet there are some deviations for large (and thus rare) events. Whence suggestions for other measurements are made if some improved predictability of the weather/climate in the North Atlantic is of interest. The subsequent Langevin equation of the NAO signal fluctuations is explicitly written in terms of the diffusion and drift parameters, and a characteristic time scale for these is given in appendix.Comment: 6 figures, 54 refs., 16 pages; submitted to Int. J. Mod. Phys. C: Comput. Phy

    Ceramic Composite Intermediate Temperature Stress-Rupture Properties Improved Significantly

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    Silicon carbide (SiC) composites are considered to be potential materials for future aircraft engine parts such as combustor liners. It is envisioned that on the hot side (inner surface) of the combustor liner, composites will have to withstand temperatures in excess of 1200 C for thousands of hours in oxidizing environments. This is a severe condition; however, an equally severe, if not more detrimental, condition exists on the cold side (outer surface) of the combustor liner. Here, the temperatures are expected to be on the order of 800 to 1000 C under high tensile stress because of thermal gradients and attachment of the combustor liner to the engine frame (the hot side will be under compressive stress, a less severe stress-state for ceramics). Since these composites are not oxides, they oxidize. The worst form of oxidation for strength reduction occurs at these intermediate temperatures, where the boron nitride (BN) interphase oxidizes first, which causes the formation of a glass layer that strongly bonds the fibers to the matrix. When the fibers strongly bond to the matrix or to one another, the composite loses toughness and strength and becomes brittle. To increase the intermediate temperature stress-rupture properties, researchers must modify the BN interphase. With the support of the Ultra-Efficient Engine Technology (UEET) Program, significant improvements were made as state-of-the-art SiC/SiC composites were developed during the Enabling Propulsion Materials (EPM) program. Three approaches were found to improve the intermediate-temperature stress-rupture properties: fiber-spreading, high-temperature silicon- (Si) doped boron nitride (BN), and outside-debonding BN

    Growth to early adulthood following extremely preterm birth: the EPICure study.

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    OBJECTIVE: To investigate growth trajectories from age 2.5 to 19 years in individuals born before 26 weeks of gestation (extremely preterm; EP) compared with term-born controls. METHODS: Multilevel modelling of growth data from the EPICure study, a prospective 1995 birth cohort of 315 EP participants born in the UK and Ireland and 160 term-born controls recruited at school age. Height, weight, head circumference and body mass index (BMI) z-scores were derived from UK standards at ages 2.5, 6, 11 and 19 years. RESULTS: 129 (42%) EP children were assessed at 19 years. EP individuals were on average 4.0 cm shorter and 6.8 kg lighter with a 1.5 cm smaller head circumference relative to controls at 19 years. Relative to controls, EP participants grew faster in weight by 0.06 SD per year (95% CI 0.05 to 0.07), in head circumference by 0.04 SD (95% CI 0.03 to 0.05), but with no catch-up in height. For the EP group, because of weight catch-up between 6 and 19 years, BMI was significantly elevated at 19 years to +0.32 SD; 23.4% had BMI >25 kg/m2 and 6.3% >30 kg/m2 but these proportions were similar to those in control subjects. EP and control participants showed similar pubertal development in early adolescence, which was not associated with height at 19 years in either study group. Growth through childhood was related to birth characteristics and to neonatal feeding practices. CONCLUSIONS: EP participants remained shorter and lighter and had smaller head circumferences than reference data or controls in adulthood but had elevated BMI

    Cellular automaton rules conserving the number of active sites

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    This paper shows how to determine all the unidimensional two-state cellular automaton rules of a given number of inputs which conserve the number of active sites. These rules have to satisfy a necessary and sufficient condition. If the active sites are viewed as cells occupied by identical particles, these cellular automaton rules represent evolution operators of systems of identical interacting particles whose total number is conserved. Some of these rules, which allow motion in both directions, mimic ensembles of one-dimensional pseudo-random walkers. Numerical evidence indicates that the corresponding stochastic processes might be non-Gaussian.Comment: 14 pages, 5 figure

    The 6-vertex model of hydrogen-bonded crystals with bond defects

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    It is shown that the percolation model of hydrogen-bonded crystals, which is a 6-vertex model with bond defects, is completely equivalent with an 8-vertex model in an external electric field. Using this equivalence we solve exactly a particular 6-vertex model with bond defects. The general solution for the Bethe-like lattice is also analyzed.Comment: 13 pages, 6 figures; added references for section

    Two-Dimensional Fluorescence Difference Spectroscopy to Characterize Nanoparticles and their Interactions

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    Citation: Hurst, M. N., & DeLong, R. K. (2016). Two-Dimensional Fluorescence Difference Spectroscopy to Characterize Nanoparticles and their Interactions. Scientific Reports, 6, 9. https://doi.org/10.1038/srep33287Two dimensional fluorescence difference spectroscopy (2D FDS) detects nanoparticle interactions following surface functionalization and biomolecule loading by generating a spectral signature of the fluorescent intensity per excitation and emission wavelengths. Comparing metal oxide nanoparticles revealed a unique spectral signature per material composition. 2D FDS showed to be sensitive to changes in surface properties between ZnO NPs synthesized by different methods. ZnO NP loaded with glycol chitosan, polyacrylic acid (PAA), or methoxy polyethylene glycol (mPEG) exhibited a distinct spectral signature shift. ZnO NP loaded with Torula Yeast RNA (TYRNA)(640 nm), polyinosinic: polycytidylic acid (pIC)(680 nm), or splice switching oligonucleotide (SSO)(650 nm) each revealed a shift in emission. Ras-Binding domain (RBD) at three concentrations (25, 37.5, 50 mu g/mL) showed that fluorescent intensity was inversely related to the concentration of protein loaded. These data support 2D FDS as a novel technique in identifying nanoparticles and their surface interactions as a quality assurance tool

    MICRO-CI: A Testbed for Cyber-Security Research

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    A significant challenge for governments around the globe is the need to improve the level of awareness for citizens and businesses about the threats that exist in cyberspace. The arrival of new information technologies has resulted in different types of criminal activities, which previously did not exist, with the potential to cause extensive damage. Given the fact that the Internet is boundary-less, it makes it difficult to identify where attacks originate from and how to counter them. The only solution is to improve the level of support for security systems and evolve the defences against cyber-attacks. This project supports the development of critical infrastructure security research, in the fight against a growing threat from the digital domain. However, the real-world evaluation of emerging security systems for Supervisory Control and Data Acquisition (SCADA) systems is impractical. The research project furthers the knowledge and understanding of Information Systems; specifically acting as a facilitator for cyber-security research. In this paper, the construction of a testbed and datasets for cyber-security and critical infrastructure research are presented
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