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Now showing items 581-600 of 661
The Multitude of Molecular Hydrogen Knots in the Helix Nebula
(Institute of Physics, 2005)
We present Hubble Space Telescope NICMOS imaging of the H2 2.12 μm emission in five fields in the Helix Nebula ranging in radial distance from 250'' to 450'' from the central star. The images reveal arcuate structures with ...
Steps in fertilizing garden soil: vegetables and annual flowers (2005)
(University of Missouri--Columbia. Extension Division, 2005)
This paper details the necessary steps to take when fertilizing garden soil from getting the soil tested to maintaining organic matter.
Flowering annuals : characteristics and culture (2005)
(University of Missouri--Columbia. Extension Division, 2005)
Annual flowers are used primarily to brighten the landscape with abundant amounts of color. They are unsurpassed for adding interest to beds or borders or in pots or containers on the patio or deck. They may also be used ...
Summer flowering bulbs : gladiolus (2005)
(University of Missouri--Columbia. Extension Division, 2005)
The gladiolus was once known as sword lily. Improved types were first developed from crosses of several species native to the Mediterranean area of Europe. Later discovery of African species led to crosses, which produced ...
Compositions with the Euler and Carmichael Functions
(Springer Verlag, 2005)
Let ' and _ be the Euler and Carmichael functions, respectively. In this paper, we establish lower and upper bounds for the number of positive integers n ≤ x such that '(_(n)) = _('(n)). We also study the normal order of ...
Krause's essential human histology for medical students
(Universal Publishers, 2005)
The format of Essential Human Histology departs
considerably from that of the usual presentations
on human tissue/organ biology. This presentation
was not designed as a formal textbook but as a tool
solely for students and ...
Relativistic motion of spinning particles in a gravitational field
(arXiv, 2005)
The relative motion of a classical relativistic spinning test particle is studied with respect to a nearby free test particle in the gravitational field of a rotating source. The effects of the spincurvature coupling force ...
A Mission to Explore the Pioneer Anomaly
(arXiv, 2005)
The Pioneer 10 and 11 spacecraft yielded the most precise navigation in deep space to date. These spacecraft had exceptional acceleration sensitivity. However, analysis of their radio-metric tracking data has consistently ...
Quantum Theory in Accelerated Frames of Reference
(arXiv, 2005)
The observational basis of quantum theory in accelerated systems is studied. The extension of Lorentz invariance to accelerated systems via the hypothesis of locality is discussed and the limitations of this hypothesis are ...
Establishing and Managing Riparian Forest Buffers (2005)
(University of Missouri Extension, 2005)
Agroforestry is an integrated set of land management practices that helps land and forest owners to diversify products, markets and farm income, while simultaneously improving soil and water quality, enhancing wildlife ...
Source localization using TDOA with erroneous receiver positions
(University of Missouri--Columbia, 2005)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Source localization has been an active research for several years. It has applications in many areas such as geolocation and mobile user location. ...
Shapiro Effect as a Possible Cause of the Low-Frequency Pulsar Timing Noise in Globular Clusters
(arXiv, 2005)
A prolonged timing of millisecond pulsars has revealed low-frequency uncorrelated noise, presumably of astrophysical origin, in the pulse arrival time (PAT) residuals for some of them. In most cases, pulsars in globular ...
Nonuniqueness in spin-density-functional theory on lattices
(American Physical Society, 2005)
In electronic many-particle systems, the mapping between densities and spin magnetizations, {n(r),m(r)}, and potentials and magnetic fields, {v(r),B(r)}, is known to be nonunique, which has fundamental and practical ...
Pressure Raman effects and internal stress in network glasses
(American Physical Society, 2005)
Raman scattering from binary GexSe1−x glasses under hydrostatic pressure shows onset of a steady increase in the frequency of modes of corner-sharing GeSe4 tetrahedral units when the external pressure P exceeds a threshold ...
Soybean pest management: dectes stem borer (2005)
(University of Missouri--Columbia. Extension Division, 2005)
The soybean or Dectes stem borer, Dectes texanus texanus LeConte, is a small, gray, long-horned beetle that attacks soybean and wild host plants. This is an occasional soybean pest in Missouri, and crop damage caused by ...
Astrometric Effects of Secular Aberration
(arXiv, 2005)
One of the main endeavors of fundamental astrometry is to establish a practical realization of an inertial reference frame anchored to celestial objects whose positions are defined in the barycentric coordinates of the ...
Towards a High Diffraction Efficiency of Photorefractive Multiple Quantum Wells
(American Institute of Physics, 2005)
We propose a method to improve the diffraction efficiency of photorefractive multiple quantum well devices in the transverse-field geometry. Higher efficiencies have been achieved through systematic electrical modulation studies.
Role of Physical Mechanisms in Biological Self-Organization
(American Physical Society, 2005)
Organs form during morphogenesis, the process that gives rise to specialized biological structures of specific shape and function in early embryonic development. Morphogenesis is under strict genetic control, but shape ...
Functional Imaging Using InGaAs/GaAs Photorefractive Multiple Quantum Wells
(American Institute of Physics, 2005)
We propose the use of an InGaAs/GaAs photorefractive quantum well (PRQW) as an adaptive beam combiner for holographic optical coherence imaging applications. Holograms have been observed by using a diode laser and an ...
Atomic force microscopy measurements of topography and friction on dotriacontane films adsorbed on a SiO2 surface
(American Institute of Physics, 2005)
We report comprehensive atomic force microscopy (AFM) measurements at room temperature of the nanoscale topography and lateral friction on the surface of thin solid films of an intermediate-length normal alkane, dotriacontane ...