7,172 research outputs found

    A Delirious Welcome to Anyone in Uniform: The GI Experience in Paris, July - September 1944

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    Previous studies of relationships between American GIs and the French population during and after Liberation paint two extremes: one of a perfectly handsome American man doling out candy, cigarettes, and kisses, and the other of a rapist and conqueror. In reality, the situation proved to be somewhere between these two realities. In this paper, I will argue that the Franco-American relationship in the months of July, August, and September 1944 was one of utility and necessity that left the French vulnerable and powerless. Because of factors such as preexisting conditions left behind by German soldiers, language barriers, and material needs, American GIs enlisted, collaborated with, interacted with, and took advantage of Parisians during their time in Pari

    Gravitational microlensing of planets: the influence of planetary phase and caustic orientation

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    Recent studies have demonstrated that detailed monitoring of gravitational microlensing events can reveal the presence of planets orbiting the microlensed source stars. With the potential of probing planets in the Galactic Bulge and Magellanic Clouds, such detections greatly increase the volume over which planets can be found. This paper expands on these original studies by considering the effect of planetary phase on the form of the resultant microlensing light curve. It is found that crescent-like sources can undergo substantially more magnification than a uniformly illuminated disk, the model typically employed in studying such planets. In fact, such a circularly symmetric model is found to suffer a minimal degree of magnification when compared to the crescent models. The degree of magnification is also a strong function of the planet's orientation with respect to the microlensing caustic. The form of the magnification variability is also strongly dependent on the planetary phase and from which direction it is swept by the caustic, providing further clues to the geometry of the planetary system. As the amount of light reflected from a planet also depends on its phase, the detection of extreme crescent-like planets requires the advent of 30-m class telescopes, while light curves of planets at more moderate phases can be determined with today's 10-m telescopes.Comment: 7 pages, 7 figures, to appear in the MNRA

    Disentangling Access and View Amenities in Access-restricted Coastal Residential Communities

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    In small coastal communities with uniform flood risk, amenity value is comprised of two components – view and access. Having controlled for view, it is assumed that any residual amenity value represents the benefit derived from households from accessing the beach for leisure or recreational purposes. However, as properties closer to the beach typically have improved viewsheds, the two amenities are highly correlated, and disentangling view and access is problematical. We posit that for many coastal communities, access is restricted to designated public access points, precluding local residents from accessing the beach area directly from their property. To appropriately account for restricted access, we incorporate a network distance access measure into a spatial autoregressive hedonic model to capture ease of beach access for local residents. Our findings suggest that, as network distance varies independently from property viewshed, collinearity effects are mitigated, and access and view can be disentangled. Key Words:

    Disentangling Access and View Amenities in Access-Restricted Coastal Residential Communities

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    In coastal communities with uniform flood risk, amenity value is comprised of two components – view and access. Having controlled for view, it is assumed that any residual amenity value represents the benefit derived from accessing the beach for leisure/recreational purposes. However, as properties closer to the beach typically have improved viewsheds, the two amenities are highly correlated, and disentangling view and access is problematical. A spatial autoregressive hedonic model captures ease of beach access via a network distance parameter that varies independently from property viewshed, collinearity effects are mitigated, and access and view can be disentangled.beach access, property viewshed, spatial hedonic model, willingness to pay, Environmental Economics and Policy, Land Economics/Use, Q51, R12, R21, R23,

    Estimating a Payment Vehicle for Financing Nourishment of Residential Beaches using a Spatial-lag Hedonic Property Price Model

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    Beach nourishment projects are common methods for coastal states to protect beaches and property from the natural erosive process. However, while the beneficiaries of beach nourishment tend to be local property owners and recreators, projects are typically funded at the state level. Based on the benefit principle, as local residents receive more of the erosion protection benefits of the nourishment projects, we estimate a value capture tax, designed to levy the financing burden in a manner that approximates the distribution of benefits. The benefits of nourishment projects to coastal property owners are estimated using the results from a spatial-lag hedonic model that controls for viewshed effects. Key Words:

    Gulf Views: Toward a Better Understanding of Viewshed Scope in Hedonic Property Models

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    This study examines the influence of Gulf of Mexico views on residential home sales prices in Pinellas County, Florida. We utilize Light Detection and Ranging (lidar) data to construct four continuous measures of Gulf of Mexico views – the total view, the maximum view segment, the mean view segment, and proximity to view content. Our results illustrate that residential property owners have a higher marginal willingness-to-pay for larger total views and larger continuous view segments. Results also indicate that the proximity of homes to the view content influences view valuations. Key Words:

    The determination and evaluation of Nitinol constitutive models for finite element analysis

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    Superelastic Ni-Ti (Nitinol) is a member of the shape memory alloy (SMA) family of metals. The physical properties of Nitinol are highly dependant on a number of factors, including manufacturing method, subsequent processing, operating temperature, and strain rate. These factors complicate the prescription of material constitutive models, leading to complexities in the computational analysis of Nitinol components. The current work explores the limitations in the Nitinol material model available in existing commercial finite element (FE) software using a series of specially design experimental tests and representative FE models

    Water Quality and Residential Property Values: A Natural Experiment Approach

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    We use hedonic techniques to measure the impact of improved water quality on inland real estate values. By considering a unique natural experiment setting where consistent and recognizable variation in water quality across two rivers within a small geographic area is well known to market participants, we avoid the major problems inherent in hedonic water quality studies. Controlling for spatial autocorrelation, results show that land and property values increase more substantially with proximity to the non-contaminated river as opposed to the mercurycontaminated river that carries a fish consumption advisory. Results suggest that the value of improving water quality to a level that will remove the advisory is between 7.3and7.3 and 12 million. Key Words:
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