3,157 research outputs found
Infrared radiative transfer through a regular array of cuboidal clouds
Infrared radiative transfer through a regular array of cuboidal clouds is studied and the interaction of the sides of the clouds with each other and the ground is considered. The theory is developed for black clouds and is extended to scattering clouds using a variable azimuth two-stream approximation. It is shown that geometrical considerations often dominate over the microphysical aspects of radiative transfer through the clouds. For example, the difference in simulated 10 micron brightness temperature between black isothermal cubic clouds and cubic clouds of optical depth 10, is less than 2 deg for zenith angles less than 50 deg for all cloud fractions when viewed parallel to the array. The results show that serious errors are made in flux and cooling rate computations if broken clouds are modeled as planiform. Radiances computed by the usual practice of area-weighting cloudy and clear sky radiances are in error by 2 to 8 K in brightness temperature for cubic clouds over a wide range of cloud fractions and zenith angles. It is also shown that the lapse rate does not markedly affect the exiting radiances for cuboidal clouds of unit aspect ratio and optical depth 10
Transport of infrared radiation in cuboidal clouds
The transport of infrared radiation in a single cuboidal cloud using a vertical two steam approximation was modeled. The emittance of the top face of the model cloud is always less than that for a plane parallel cloud of the same optical depth. The hemisphere flux escaping from the cloud top has a gradient from the center to the edges which brighten when the cloud is over warmer ground. Cooling rate calculations in the 8 to 13.6 micrometer region show that there is cooling from the sides of the cloud at all levels even when there is heating of the core from the ground below. The radiances exiting from model cuboidal clouds were computed by path integration over the source function obtained with the two stream approximation. It is suggested that the brightness temperature measured from finite clouds will overestimate the cloud top temperature
Making “men see clearly": Physical imperfection and mathematical order in Ptolemy’s Syntaxis
An Attachment Style Based Experimental Design to Maximize Dog Adoption Success
Evolution and domestication have brought dogs very close to humans. Research has found numerous behavioral, cognitive, neurological, and physiological similarities between the two species. Additional research has found that humans and dogs can share cross-species attachments that are comparable to mother-infant attachments. Furthermore, attachment styles in dogs are classified the same way they are in children. The statistics on the vast amount of dogs in animal shelters, too many of which are being senselessly killed, are shocking. I propose a two-part study that first assesses which attachment style pairings are most successful and which are unsuccessful based on measurements of satisfaction and oxytocin levels reflecting attachment. The second study is designed to verify these pairings by manipulating adoptions and following pairs. If particular pairings are found more successful than others and are utilized at adoption, I hypothesize an attachment style based program would produce more successful adoptions, lower the amount of dogs returned to shelters, and eventually, lower euthanization rates
Invisible Suburbs: Privatized Growth in Suburban Metropolitan Denver, 1950-2000
This dissertation studies the causes and effects of rapid and uncoordinated suburban growth in metropolitan Denver, Colorado after the Second World War. The region experienced sprawling, low-density residential development on its periphery despite a powerful wave of anti-growth sentiment and that swept the state in the sixties and seventies. This study argues that this resulted from the difficulties experienced by Coloradans in reconciling a number of their cherished ethics: individual freedom and the sanctity of property rights versus a nascent environmentalism, fervent pursuit of wealth and economic opportunity versus an enduring celebration of the state’s traditional ranching heritage and rural character, and a preference for local control versus a desire for more comprehensive regional solutions to the problems of growth.
The pace and type of suburban growth and development in metropolitan Denver emerged neither from intentional strategies nor a dominant development ethos. Instead, decades of indecisiveness and inaction at the state and county levels subjected the Denver metropolitan area to exogenous forces that filled the void. Outside corporate real estate developers privatized much of the process of the state’s suburban growth by acquiring large plots of ranchland in unincorporated areas, creating and controlling an unprecedented number of governmental entities called “special districts” to provide infrastructure and public services to their developments, and designing and building enormous communities that were cities in all but name. These “invisible suburbs” overwhelmed county, regional, and state efforts to integrate these new communities seamlessly into the metropolitan area. Privatized development carried socioeconomic, civic, financial, and environmental implications for the region and its residents.
This study focuses upon Denver’s southern suburbs, particularly those located in Douglas County, the nation’s fastest growing county during the late twentieth century. It analyzes state and local government records and reports, United States Census Bureau population and local government data, voting records, corporate publications, legal records and correspondence, and newspaper accounts to illustrate the efforts and struggles of the region’s residents and governments to contend with growth. It combines elements of business, environmental, public policy, and urban history to add to the historical literature of late-twentieth century American suburbanization
Developing Auditory Discrimination Skills in First Grade
The purpose of this study was two-fold. The first objective was to review research done in the area of auditory discrimination to discover how auditory discrimination is related to reading, its importance to reading and whether or not it merits the time required for developing auditory discrimination skills. The second objective was to formulate a collection of games and activities for developing skills in the auditory discrimination of consonants and consonant blends, and present them to a class of first grade children to see if they would aid in developing the required skills. A simple test would be given to the children preceding and following the auditory discrimination training to help determine the value of the training program
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