8,902 research outputs found
Development of SSB/DSB auxiliary time division multiplexer and demultiplexer Final report, 14 Jun. 1967 - 19 Feb. 1968
Design and performance of single sideband-double sideband auxiliary time division multiplexer prototype and demultiplexer breadboard mode
North Central South Dakota Farm Record Summary 1948 Sixth Annual Report
This is the sixth annual report of the farm record study started by the Experiment Station in 1943. Farm record cooperators are located in two areas of the state; namely, the Southeastern and North Central Areas. A summary of the results of the Southeastern area are included in a separate pamphlet
Southeastern South Dakota Farm Record Summary 1948 Sixth Annual Report
This is the sixth annual report of the farm record study started by the Experiment Station in 1943. Farm record cooperators are located in two areas of the state; namely, the Southeastern and North Central Areas. A summary of the results of the North Central area are included in a separate pamphlet
Southeastern South Dakota Farm Record Summary 1947 Fifth Annual Report
This is the fifth annual report of the farm record study started by the Experiment Station in 1943. Farm record cooperators are located in two areas of the state; namely, the Southeastern and North Central Areas. A summary of the results of the North Central area are included in a separate pamphlet
Accounting for goodwill; Accounting research study no. 10
https://egrove.olemiss.edu/aicpa_guides/1141/thumbnail.jp
Packing Fractions and Maximum Angles of Stability of Granular Materials
In two-dimensional rotating drum experiments, we find two separate influences
of the packing fraction of a granular heap on its stability. For a fixed grain
shape, the stability increases with packing fraction. However, in determining
the relative stability of different grain shapes, those with the lowest average
packing fractions tend to form the most stable heaps. We also show that only
the configuration close to the surface of the pile figures prominently.Comment: 4 pages, 4 figure
Coincident Charge State Production In F⁶⁺+Ne Collisions
Total cross sections are presented for the production of various stages of multiple ionization of the target in coincidence with the final projectile charge state for collisions of F6+ with Ne at 10 and 15 MeV. In particular, the current measurements are compared with the results of a classical trajectory Monte Carlo method in which electrons are included explicitly on both target and projectile (nCTMC) and with those based on the conventional independent electron model (IEM). It is shown by the good agreement with experiment that the nCTMC model simultaneously represents well the ionization, charge transfer and excitation channels for both target and projectile. Further, it is demonstrated that the IEM is in clear disagreement with the present experiment and is inadequate to predict the outcome of such multi-electronic transition processes. However, the IEM is shown to provide a reasonable estimate of the free electron production, that is, the cross section summed over charge states weighted by the number of electrons liberated. The IEM is also used to illustrate a process in cusp electron production where electrons are interchanged between the target and projectile. © 1990, IOP Publishing Ltd
Classical Calculation Of High-energy Electron Capture In 5-MeV Proton-hydrogen Collisions
The existence of the classical Thomas peak in the angular distribution of projectiles undergoing capture in collisions of 5-MeV protons with atomic hydrogen is explored using the three-body, three-dimensional classical-trajectory Monte Carlo technique. A method that selects only that portion of the initial phase space which yields capture at this energy was developed to make the calculation tractable due to the extremely small cross section. The spectrum obtained displays only a small shoulder near the angle predicted by Thomas on the basis of successive classical binary collisions and the total (integral) cross section is overestimated by a factor of 26 compared to recent experimental measurements. The overestimation originates from too large a contribution from velocity matching direct capture; the energy regime in which it is significant is discussed. In addition, the double-scattering events in this model which contribute significantly to the cross sections are found to differ substantially from the Thomas picture. © 1992 The American Physical Society
Preventing Selenium Poisoning in Growing and Fattening Pigs
The condition commonly referred to as alkali disease has been known for a number of years to be the result of chronic poisoning by selenium. South Dakota Agricultural Experiment Station bulletin 311, published in 1937, explained the cause for this disease and thoroughly described the symptoms exhibited by various farm animals. The work reported here was started in 1953. At that time effective and practical control measures had not been found
Our Studies on Egg Shell Fragility
Thin or Improperly formed egg shells cause serious losses to our poultry Industry, and the problem becomes progressively greater during aging of the laying flock. Therefore, the Animal Science and Chemistry Departments are undertaking work to attempt to understand the causes for greater fragility of the eggs of older laying hens and to reduce the problem by removing or alleviating the causes. Since the work has just begun, no results are yet available. The studies to be under taken are outlined below
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