5,114 research outputs found
Comparing the Profitability of Beef Production Enterprises in North Dakota
Agricultural Finance, Production Economics,
The Financial Status of North Dakota Farmers and Ranchers: January 1, 1985, Survey Results
Agricultural Finance,
Economics of Establishing a Beef Cattle Feedlot Using By-Products of Ethanol Production in North Dakota
Production Economics, Resource /Energy Economics and Policy, Agribusiness,
Single-Calf Heifer System Profitability Compared to Other North Dakota Beef Production Systems
Production Economics, Productivity Analysis,
Wegener's granulomatosis and autoantibodies to neutrophil antigens
We report five cases of Wegener's granulomatosis all of whom had clinical and histological evidence of disease activity at presentation and in whom autoantibodies to neutrophil antigens were detected. This test may prove useful for the diagnosis of this serious condition and help to monitor disease activity during treatment
An alternative search for the electron capture of Te-123
A search for the electron capture of Te-123 has been performed using CdZnTe
detectors. After a measuring time of 195 h no signal could be found resulting
in a lower half-life limt of yrs (95 % CL) for
this process. This clearly discriminates between existing experimental results
which differ by six orders of magnitude and our data are in strong favour of
the result with longer half-lifes.Comment: 2 pages, 2 eps-figures, reanalysis of data set
Development of Temperature and Humidity-Based Indicators for Diagnosing Problems in Low Tonnage, Split System Air Conditioners
This paper presents results of a survey of the
literature and identifies the most common degraded
conditions associated with low-tonnage air
conditioners. Other laboratory studies as well as
marketed diagnostic systems are also summarized. A
procedure for identification of useful, low-cost
temperature-based indicators of degraded conditions
has been developed at the Energy Systems
Laboratory, Texas A&M University in College
Station, TX under contract to Honeywell. This paper
presents the methodology used to identify the
temperature-based indicators for the most common
degraded conditions gleaned from the literature
Sustainable Agriculture and the Structure of North Dakota Agriculture
Environmental Economics and Policy, Industrial Organization, Production Economics,
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Accounting for variability in ULF wave radial diffusion models
Many modern outer radiation belt models simulate the long‐time behavior of high‐energy electrons by solving a three‐dimensional Fokker‐Planck equation for the drift‐ and bounce‐averaged electron phase space density that includes radial, pitch‐angle, and energy diffusion. Radial diffusion is an important process, often characterized by a deterministic diffusion coefficient. One widely used parameterization is based on the median of statistical ultralow frequency (ULF) wave power for a particular geomagnetic index Kp. We perform idealized numerical ensemble experiments on radial diffusion, introducing temporal and spatial variability to the diffusion coefficient through stochastic parameterization, constrained by statistical properties of its underlying observations. Our results demonstrate the sensitivity of radial diffusion over a long time period to the full distribution of the radial diffusion coefficient, highlighting that information is lost when only using median ULF wave power. When temporal variability is included, ensembles exhibit greater diffusion with more rapidly varying diffusion coefficients, larger variance of the diffusion coefficients and for distributions with heavier tails. When we introduce spatial variability, the variance in the set of all ensemble solutions increases with larger spatial scales of variability. Our results demonstrate that the variability of diffusion affects the temporal evolution of phase space density in the outer radiation belt. We discuss the need to identify important temporal and length scales to constrain variability in diffusion models. We suggest that the application of stochastic parameterization techniques in the diffusion equation may allow the inclusion of natural variability and uncertainty in modeling of wave‐particle interactions in the inner magnetosphere
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