13,177 research outputs found

    Upgraded demonstration vehicle task report

    Get PDF
    Vehicle/battery performance capabilities and interface problems that occurred when upgraded developmental batteries were integrated with upgraded versions of comercially available electric vehicles were investigated. Developmental batteries used included nickel zinc batteries, a nickel iron battery, and an improved lead acid battery. Testing of the electric vehicles and upgraded batteries was performed in the complete vehicle system environment to characterize performance and identify problems unique to the vehicle/battery system. Constant speed tests and driving schedule range tests were performed on a chassis dynamometer. The results from these tests of the upgraded batteries and vehicles were compared to performance capabilities for the same vehicles equipped with standard batteries

    Sequences of Willmore surfaces

    Full text link
    In this paper we develop the theory of Willmore sequences for Willmore surfaces in the 4-sphere. We show that under appropriate conditions this sequence has to terminate. In this case the Willmore surface either is the twistor projection of a holomorphic curve into complex projective space or the inversion of a minimal surface with planar ends in 4-space. These results give a unified explanation of previous work on the characterization of Willmore spheres and Willmore tori with non-trivial normal bundles by various authors.Comment: 10 page

    Bottom-Up Cubosome Synthesis Without Organic Solvents

    Get PDF
    This dataset contains processed SAXS data for mixtures of phytantriol with different diluents, and also following bottom-up synthesis of cubosomes. This data was collected to demonstrate the phase formations of phytantriol under different conditions.SAXS data was collected on an Anton-Parr SAXSpoint 2.0.SAXS data was collected on an Anton-Parr SAXSpoint 2.0, using an SDD of 556.9mm. The instrument is known to have a single dead pixel which sometimes results in an anomolous single-point peak

    Efficient Set Sharing Using ZBDDs

    Get PDF
    Set sharing is an abstract domain in which each concrete object is represented by the set of local variables from which it might be reachable. It is a useful abstraction to detect parallelism opportunities, since it contains definite information about which variables do not share in memory, i.e., about when the memory regions reachable from those variables are disjoint. Set sharing is a more precise alternative to pair sharing, in which each domain element is a set of all pairs of local variables from which a common object may be reachable. However, the exponential complexity of some set sharing operations has limited its wider application. This work introduces an efficient implementation of the set sharing domain using Zero-suppressed Binary Decision Diagrams (ZBDDs). Because ZBDDs were designed to represent sets of combinations (i.e., sets of sets), they naturally represent elements of the set sharing domain. We show how to synthesize the operations needed in the set sharing transfer functions from basic ZBDD operations. For some of the operations, we devise custom ZBDD algorithms that perform better in practice. We also compare our implementation of the abstract domain with an efficient, compact, bit set-based alternative, and show that the ZBDD version scales better in terms of both memory usage and running time

    Binary Decision Diagrams: from Tree Compaction to Sampling

    Full text link
    Any Boolean function corresponds with a complete full binary decision tree. This tree can in turn be represented in a maximally compact form as a direct acyclic graph where common subtrees are factored and shared, keeping only one copy of each unique subtree. This yields the celebrated and widely used structure called reduced ordered binary decision diagram (ROBDD). We propose to revisit the classical compaction process to give a new way of enumerating ROBDDs of a given size without considering fully expanded trees and the compaction step. Our method also provides an unranking procedure for the set of ROBDDs. As a by-product we get a random uniform and exhaustive sampler for ROBDDs for a given number of variables and size

    Health Risk Behaviors in Insured and Uninsured Community Health Center Patients in the Rural US South

    Get PDF
    Introduction: The impact of health behaviors on the leading causes of death across the USA has been well demonstrated. However, limited focus has been placed on the leading health risk behaviors of rural Federally-Qualified Health Center (FQHC) patients, a particularly underserved group. The current study was undertaken to examine the most common risk-taking behaviors of rural FQHC patients and to examine if risk-taking behaviors vary between insured and uninsured patients. Methods: A convenience sample of 199 patients was recruited at an FQHC in the rural US South. Participants completed a battery of demographic and health risk behavior assessments. Results: The most common risk behaviors were eating fried foods, not eating five servings of vegetables per day, not eating three servings of fruit per day, drinking caloric beverages, not exercising regularly, not wearing a seatbelt, having sex without a condom and smoking. Uninsured patients were more likely to talk on their cell phones while driving (p Conclusions: Rural FQHC patients demonstrated high levels of behavioral and health risk-taking, including dietary-, exercise- and traffic-related risks, in a context where traditional prevention methods have failed to penetrate. Differences exist between insured and uninsured patients, indicating that the reasons behind behavioral risk-taking may be context-specific and need to be explored further to help identify intervention targets that are culturally and situationally appropriate for diverse rural groups

    Archaeological investigations at the Ross Hammock site, Florida.

    Get PDF
    Describes the excavations of the Ross Hammock Site, located a little southeast of Oak Hill, Florida. The excavations were made in 1963 to evaluate the site\u27s archaeological potential. The authors believed that the site was probably occupied about 2000 years ago. Includes a brief account of an investigation of a nearby 19th century salt evaporation works site.https://stars.library.ucf.edu/floridaheritage/1007/thumbnail.jp
    corecore