Now showing items 1694-1713 of 2582

    • Pooch Portal 

      Foy, Phil; Osaisai, Ebipamo; Reichel, Julie; Shen, Haonen
      There are no existing wirelessly controlled dog doors on the market. Pooch Portal is a proof of concept that enables an existing product to be controlled over the Internet. We have inserted a microcontroller into the ...
    • Population Genetics of the Florida Scrub-Jay at Kennedy Space Center 

      Spern, Cory James (2017-05)
      The Florida Scrub-Jay (Aphelocoma coerulescens) has suffered ~90% reduction in population size due to degradation of habitat. This loss of habitat has led to the fragmentation of many subpopulations and it is unknown how ...
    • Porous silicon surface feature size estimation using the reflectance spectrum 

      Lowrie, Christopher G.; Earles, S. K.; Pozo de Fernandez, Maria E. (2008-02-13)
      In this paper we excite the surface of porous silicon with incoherent, broad band white light and observe the spectrum of colors reflected from the surface. Using an atomic force microscope images from red and green porous ...
    • Positive Experiences as Countermeasures to Stress in Spaceflight: An Investigation of the Experiences of Astronauts 

      Eudy, Morgan M. (2018-05)
      Long-duration space mission targets such as asteroids, the Moon and Mars in coming years will increase the need to stress management techniques to support crews on increasingly risky, autonomous missions. New stress ...
    • A positive solution for singular discrete boundary value problems with sign-changing nonlinearities 

      Lü, Haishen; O’regan, Donal; Agarwal, Ravi P. (2005-03-02)
      This paper presents new existence results for the singular discrete boundary value problem - Δ²u(k - 1) = g(k, u(k)) + λh(k,u(k)), k ∈ [1,T], u(0) = 0 = u(T + 1). In particular, our nonlinearity may be singular in its ...
    • Positive solutions for singular three-point boundary-value problems 

      Agarwal, Ravi P.; O'Regan, Donal; Yan, Baoqiang (2008)
      Using the theory of fixed point index, this paper discusses the existence of at least one positive solution and the existence of multiple positive solutions for the singular three-point boundary value problem: y″(t) + ...
    • Positive solutions of singular complementary Lidstone boundary value problems 

      Agarwal, Ravi P.; O'Regan, Donal; Staněk, Svatoslav (2010-12-02)
      We investigate the existence of positive solutions of singular problem (-1)mx(2m+1) = f(t, x,⋯, x(2m)), x (0) = 0, x(2i-1) (0) = x(2i-1) (T) = 0, 1 ≤ i ≤ m. Here, m ≥ 1 and the Carathéodory function f (t, x0,⋯, x2m) may ...
    • Possible pair-instability supernovae at solar metallicity from magnetic stellar progenitors 

      Georgy, Cyril; Meynet, Georges; Ekström, Sylvia; Wade, Gregg A.; Petit, Véronique; Keszthelyi, Zsolt; Hirschi, Raphael (2017-03-01)
      Near-solar metallicity (and low-redshift) pair-instability supernova (PISN) candidates challenge stellar evolution models. Indeed, at such a metallicity, even an initially very massive star generally loses so much mass by ...
    • Potential impacts of the Deepwater Horizon oil spill on large pelagic fishes 

      Frias-Torres, Sarah; Bostater, Charles R. (2011-10-07)
      Biogeographical analyses provide insights on how the Deepwater Horizon oil spill impacted large pelagic fishes. We georeferenced historical ichthyoplankton surveys and published literature to map the spawning and larval ...
    • Power Buddy 

      Irwin, Otto; Campbell, Austin; von Friesen, Timothy
      The Power Buddy monitors the power consumption of any device that plugs into a standard outlet and provides remote access to that data and other helpful information. Users gain insight into how much power a device uses ...
    • Power estimates associated with internal tides from the Monterey Bay Area 

      Jachec, Steven M. (2012)
      Numerical modeling has proven to be a useful method for simulating internal tides within the coastal ocean. Monterey Bay is a location that experiences energetic semidiurnal internal tides, and they are pronounced within ...
    • Power Production from Biomass and Geothermal Resources 

      Brooks, Andrea; Jamunar, Stephen; Tu, Ryan
      One of the greatest environmental concerns in today’s society is the excessive release of carbon dioxide into the atmosphere. Another concern that is prevalent, is the depletion of fossil fuels. In this plant we address ...
    • POWERFUL ACTIVITY in the BRIGHT AGES. I. A VISIBLE/IR SURVEY of HIGH REDSHIFT 3C RADIO GALAXIES and QUASARS 

      Hilbert, Bryan; Chiaberge, Marco; Kotyla, J. P.; Tremblay, Grant R.; Stanghellini, Carlo; Sparks, William B.; Baum, Stefi A.; Capetti, Alessandro; MacChetto, Ferdinando Duccio; Perlman, Eric S. (2016-07)
      We present new rest-frame UV and visible observations of 22 high-z (1 < z < 2.5) 3C radio galaxies and QSOs obtained with the Hubble Space Telescope's Wide Field Camera 3 instrument. Using a custom data reduction strategy ...
    • POWERFUL ACTIVITY in the BRIGHT AGES. I. A VISIBLE/IR SURVEY of HIGH REDSHIFT 3C RADIO GALAXIES and QUASARS 

      Hilbert, Bryan; Chiaberge, Marco; Kotyla, J.P.; Tremblay, Grant R; Stanghellini, Carlo; Sparks, William B.; Baum, Stefi A.; Capetti, Alessandro; MacChetto, Ferdinando Duccio; Perlman, Eric S. (2016-07-22)
      We present new rest-frame UV and visible observations of 22 high-z (1 < z < 2.5) 3C radio galaxies and QSOs obtained with the Hubble Space Telescope's Wide Field Camera 3 instrument. Using a custom data reduction strategy ...
    • Practical constraints pertinent to the design of neural networks 

      Abdallah, Said Sadek; Cofer, Rufus H. (1992-08-20)
      in designing a feedforward neural network for numerical computation using the backpropagation algorithm it is essential to know that the resulting network has a practical global minimum, meaning that convergence to a ...
    • Precipitation and Release of Solar Energetic Particles from the Solar Coronal Magnetic Field 

      Zhang, Ming; Zhao, Lulu (2017-09-07)
      Most solar energetic particles (SEPs) are produced in the corona. They propagate through complex coronal magnetic fields subject to scattering and diffusion across the averaged field lines by turbulence. We examine the ...
    • Predatory Capacity of King Crabs in Antarctica 

      Steffel, Brittan V (2017-12)
      For millions of years, cold water temperatures have excluded shell-crushing (durophagous) predators from continental-shelf environments off the western Antarctic Peninsula. Recently, however, king crabs, Paralomis ...
    • Predicting Coral Recruitment in Palau's Complex Reef Archipelago 

      Golbuu, Yimnang; Wolanski, Eric C.; Idechong, Jacques Wasai; Victor, Steven; Isechal, Adelle Lukes; Oldiais, Noelle Wenty; Idip, David; Richmond, Robert H.; van Woesik, Robert (2012-11-28)
      Reproduction and recruitment are key processes that replenish marine populations. Here we use the Palau archipelago, in the western Pacific Ocean, as a case study to examine scales of connectivity and to determine whether ...
    • Predicting Female Outcomes in a U.S. Army Select Course 

      Masi, Tracy A. (2017-11)
      The emergence of World War I ushered in an era that utilized personality testing on a wide scale to meet the needs of the Armed Forces. The most common use of personality testing in the military has been to identify ...
    • Predicting magnetopause crossings at geosynchronous orbit during the Halloween storms 

      Unknown author (2007-01)
      [1] In late October and early November of 2003, the Sun unleashed a powerful series of events known as the Halloween storms. The coronal mass ejections launched by the Sun produced several severe compressions of the ...