6,606 research outputs found
The employability of the physically handicapped in manufacturing organizations in Boston, Massachusetts.
Thesis (M.S.)--Boston Universit
The polyphenolic and hydroxycinnamate contents of whole coffee fruits from China, India and Mexico
Air dried whole coffee fruits, beans and husks from China, India and Mexico were analysed for their chlorogenic acids (CGA), caffeine, and polyphenolic content. Analysis was by HPLC and Orbitrap exact mass spectrometry. Total phenol, total flavonol and antioxidant capacity were measured. The hydroxycinnamate profile consisted of caffeoylquinic acids, feruloyquinic acids, dicaffeoylquinic acids and caffeoyl-feruloylquinic acids. A range of flavan-3-ols as well as flavonol conjugates were detected. The CGA content was similar for both Mexico and India coffee fruits but was much lower in China samples. Highest levels of flavan-3-ols were found in the Indian samples whereas Mexico samples contained the highest flavonols. Amounts of CGAs in the beans were similar to those in the whole fruits, but flavan-3-ols and flavonols were not detected. The husks contained the same range of polyphenols as in the whole fruits. Highest levels of caffeine were found in the Robusta samples
The Collaborative Development of New CFD Methods Adapted for Tilt Rotor Aircraft in the HiPerTilt Project
No abstract available
LATE ARCHAIC TO EARLY WOODLAND LITHIC TECHNOLOGY AT THE KNOB CREEK SITE (12HR484), HARRISON COUNTY, INDIANA
This study examines bifacial technology change at the Knob Creek site (12HR484) in Harrison County, Indiana, from the Late Archaic to Early Woodland periods. Through a statistical and attribute analysis of 2,620 lithic flakes it was possible to detect changes in the lithic reduction process over time. The analysis demonstrates that soft-hammer percussion becomes more prevalent during the Early Woodland component of the site. This is a significant change from the hard-hammer percussion industry of the Lower Late Archaic. The Terminal Archaic Riverton component in this study offers one of the few detailed flake-by-flake analyses for this poorly understood lithic tradition originally identified by Winters (1969) in the Wabash River Valley
Stormwater & Heat Island Mitigation: Two Parking Lot Re-Designs in Burlington, Vermont
Urbanization of the world and the United States has been rapidly increasing throughout the last few decades. The effects of this have been detrimental to environmental and human health. Contaminants course through drinking water and aquatic ecosystems, while rising urban temperatures can cause heat stress on plants, animals, and people. The goals of this project are to analyze two parking lot sites in Burlington, Vermont and re-design them. The re-designs aim to improve stormwater runoff rates and filtration and reduce the urban heat island effect, while also increasing biodiversity of each site. This project reviewed relevant literature on pollution in stormwater, heat island effects on ecosystem health, and solutions to these issues. Several multifunctional solutions that integrate urban biodiversity into conceptual and schematic designs for each site were developed. Planting plans and section drawings were also developed to illustrate stormwater management and filtration systems on each site
Silence and Fun
Three men playing instruments with several people dancing behind themhttps://scholarsjunction.msstate.edu/cht-sheet-music/13956/thumbnail.jp
Environmental Mechanism Designs in a New Order of Regulatory Capitalism
Complexity of environmental programs is most apparent with information asymmetries, making the design of efficient mechanisms particularly challenging. As developed theoretically in this paper, a new regulatory capitalism paradigm mating voluntary agreements with environmental education can produce outcomes at least as efficient as voluntary agreements alone. Such a design exploits a key difference between voluntary agreements versus educational programs in terms of their impact on agents' incentive compatibilities. Specifically, in a principal-agent model, voluntary agreements are associated with an incentive-compatibility constraint, whereas educational programs are not. The efficient bundle will likely consist of a set of education programs and voluntary agreements. With the new order of regulatory capitalism, it is time to concentrate on removing barriers yielding inefficient mono-mechanism design and start constructing multidimensional incentives to efficiently allocate effort toward environmental and economic goals.Command and control, environmental education, environmental policy, voluntary agreements, Environmental Economics and Policy,
Geometric, Variational Discretization of Continuum Theories
This study derives geometric, variational discretizations of continuum
theories arising in fluid dynamics, magnetohydrodynamics (MHD), and the
dynamics of complex fluids. A central role in these discretizations is played
by the geometric formulation of fluid dynamics, which views solutions to the
governing equations for perfect fluid flow as geodesics on the group of
volume-preserving diffeomorphisms of the fluid domain. Inspired by this
framework, we construct a finite-dimensional approximation to the
diffeomorphism group and its Lie algebra, thereby permitting a variational
temporal discretization of geodesics on the spatially discretized
diffeomorphism group. The extension to MHD and complex fluid flow is then made
through an appeal to the theory of Euler-Poincar\'{e} systems with advection,
which provides a generalization of the variational formulation of ideal fluid
flow to fluids with one or more advected parameters. Upon deriving a family of
structured integrators for these systems, we test their performance via a
numerical implementation of the update schemes on a cartesian grid. Among the
hallmarks of these new numerical methods are exact preservation of momenta
arising from symmetries, automatic satisfaction of solenoidal constraints on
vector fields, good long-term energy behavior, robustness with respect to the
spatial and temporal resolution of the discretization, and applicability to
irregular meshes
Discrete Lie Advection of Differential Forms
In this paper, we present a numerical technique for performing Lie advection
of arbitrary differential forms. Leveraging advances in high-resolution finite
volume methods for scalar hyperbolic conservation laws, we first discretize the
interior product (also called contraction) through integrals over Eulerian
approximations of extrusions. This, along with Cartan's homotopy formula and a
discrete exterior derivative, can then be used to derive a discrete Lie
derivative. The usefulness of this operator is demonstrated through the
numerical advection of scalar fields and 1-forms on regular grids.Comment: Accepted version; to be published in J. FoC
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