Miomark Oats

Miomark, a superior new variety of oats, was released and distributed to growers for 1941 production by the Agronomy Department of the South Dakota Agricultural Experiment Station. This variety was known as F40 while being tested at the central experiment station, the experiment substations and in farm demonstrational trials

The 1939 State Hybrid Corn Yield Test

During the past few years, hybrid corn has become a subject of primary interest among farmers in the corn belt as a means of increasing the yield and quality of the corn crop. Results obtained from tests in the major and some of the minor corn-producing states have shown that the best hybrids have very markedly out yielded the best open pollinated varieties. On the other hand, these tests also have demonstrated that many hybrids are inferior or at least not superior to the best open-pollinated varieties. Finally, the results from these tests have shown that the adaption of varieties of hybrid corn, like the adaptation of varieties of open-pollinated corn, is a regional or local problem which can be determined only by actual field tests. Plant breeders employed by experiment stations and commercial seed corn companies have developed a large number of hybrids which are now offered on the seed corn market. The large number of varieties is confusing to the farmer who must decide not only whether or not it will be profitable for him to grow hybrid corn but also which variety he should choose. The South Dakota State Hybrid Corn Yield Tests were therefore begun in 1938 for the purpose of determining whether or not there were varieties of hybrid corn adapted to the corn-growing areas of the state and if so, which varieties were best adapted to the different sections. Corn growers, county agents, teachers of vocational agriculture, and hybrid seed corn dealers will no doubt find that the results from these tests will be of considerable value in formulating recommendations for their localities, especially after two or three years\u27 results have been obtained

Experiment to evaluate feasibility of utilizing Skylab-EREP remote sensing data for tectonic analysis of the Bighorn Mountains region, Wyoming-Montana

There are no author-identified significant results in this report

GRB Flares: UV/Optical Flaring (Paper I)

We present a new algorithm for the detection of flares in gamma-ray burst (GRB) light curves and use this algorithm to detect flares in the UV/optical. The algorithm makes use of the Bayesian Information Criterion (BIC) to analyze the residuals of the fitted light curve, removing all major features, and to determine the statistically best fit to the data by iteratively adding additional `breaks' to the light curve. These additional breaks represent the individual components of the detected flares: T_start, T_stop, and T_peak. We present the detection of 119 unique flaring periods detected by applying this algorithm to light curves taken from the Second Swift Ultraviolet/Optical Telescope (UVOT) GRB Afterglow Catalog. We analyzed 201 UVOT GRB light curves and found episodes of flaring in 68 of the light curves. For those light curves with flares, we find an average number of ~2 flares per GRB. Flaring is generally restricted to the first 1000 seconds of the afterglow, but can be observed and detected beyond 10^5 seconds. More than 80% of the flares detected are short in duration with Delta t/t of < 0.5. Flares were observed with flux ratios relative to the underlying light curve of between 0.04 to 55.42. Many of the strongest flares were also seen at greater than 1000 seconds after the burst.Comment: Submitted to ApJ. 20 pages (including 8 figures and 1 table

Irradiation-induced NanoCluster Evolution

Oxide dispersion strengthened steel (ODS) and commercial ferritic-martensitic (F-M) alloys are widely accepted candidate structural materials for designing advanced nuclear reactors. Nanoclusters embedded in the steel matrix are key microstructural features of both alloy types. Irradiation from nuclear fusion and fission affects the morphology of these nanoparticles, altering the performance of the alloys and potentially decreasing their usable lifetime. Thus, it is important to understand the effect of irradiation on these nanoparticles in order to predict long-term nuclear reactor performance. It was found that the evolution of nanoclusters in each material is different depending on the experimental irradiation parameters. The Nelson-Hudson-Mazey (NHM) model has been refined based on previous experimental work, and has been shown to be an effective model to simulate irradiation-induced nanocluster evolution in ODS and F-M steels. In this work, an NHM simulation tool was developed for nanoHUB, with a simplified user interface that enables rapid prediction of the effect of irradiation on the size of nanoclusters in a variety of Fe-based steels

A Titan exploration study: Science, technology, and mission planning options, volume 2

For abstract, see Vol.