Objectives in Farm Woods Management in the Central Hardwood Region

Farm woods of the central hardwood region vary widely as to size and as to proportion of total farm area. On good Corn Belt land the woodland area within a county rarely averages more than 10 or 12 acres per 120-acre farm, but south of the glacial boundary the average rises in some counties to 30 or 40 acres per 80-acre farm. In many Corn Belt counties gross woodland area amounts to less than 5 percent; in many hill counties, it exceeds 50 percent. To focus this discussion, I have roughly estimated the average woods area on farms in different parts of the region as follows

The cross section for the radiative capture of protons by C12 near 100 Kev

A low voltage accelerator and high current ion source has been used to determine the cross section of the reaction C12(pγ)N13 over the energy range from 88 to 128 kev. A counter arrangement is described which detects 26 percent of all the positrons from the decay of the N13 produced in the reaction and which has a low background rate of 5.5 counts per minute. With this accelerator and detector, yields of the order of 10^-16 positron per proton and cross sections as low as 10^-10 barn or 10^-34 cm^2 can be measured with errors of the order of ±20 percent. The cross section for the C12(pγ)N13 reaction has been found to fit the semi-empirical expression σ=0.0024E^-1exp[-6E^-1/2] barn with E in Mev over the energy range measured. This is in satisfactory agreement with the Breit-Wigner one-level dispersion formula using constants determined at the 456-kev resonance. The astrophysical implications of these results in connection with the carbon-nitrogen cycle of nuclear reactions in stellar interiors are discussed

The copper red glazes, with particular reference to the work of Bernard Moore

Copper red monochrome glazes, although rare, came to prominence in China during the Ming Dynasty and have subsequently attracted the interest of potters and collectors alike. The recipes and means of production were kept secret and frequently destroyed by their originators, thus adding to the mysteries of the field. This thesis investigates all aspects of the history of the arcane copper red glazes, in particular the high temperature glazes, and provides the physical results of practical experiments which I have made in order to test the theoretical propositions embodied in the thesis. The emergence of an acute interest in the glazes during the nineteenth century is evident in France, Germany and England. This development is traced through the scientists at Sevres and Berlin as well as the work of individual potters, culminating in an extensive study of the work of Bernard Moore (1850-1935), with particular reference to his contribution to the copper red glazes. In addition the work of Bernard Moore's artists and decorators is reviewed. As a result of the practical tests I have established one of the methods used by Moore to produce his low temperature copper red glazes as well as proposing the most likely methods he employed for high temperature glazes. The thesis is supported by appendices which catalogue Moore's work to be found in the major museums and collated technical information on recipes, methods and tests

Faculty concert

This is the program for the faculty recital featuring the following artists (in order of performance): Miss Maude Oliver and Mrs. Rosa Hill Dunwody; Mr. Alfred Hall; Mrs. Rosa Hill Dunwody; Miss Maude Oliver; Mr. L. H. Mitchell; Miss Aileen Haralson; Miss Olive Rigor Rusk; and Mr. Alfred Hall. This recital took place on November 6, 1916

Champagne Charlie is My Name / music by Alfred Lee; words by Georg Cooper

Cover: sung by the San Francisco Minstrels; Publisher: Wm. Hall and Son (New York)https://egrove.olemiss.edu/sharris_a/1008/thumbnail.jp

Specimen-exchange device for an ultra-high vacuum atom-probe field-ion microscope

A specimen-exchange device is described for an ultra-high vacuum field-ion microscope (FIM). This device completely eliminates the long pump-down period that is required if the FIM chamber is brought back to atmospheric pressure. The pressure in an air-lock is reduced to 10/sup -6/ Torr before the exchange takes place and the pressure in the FIM chamber remains below 10/sup -7/ Torr during the exchange and it drops to less than 3 x 10/sup -9/ Torr within 15 minutes after the exchange

Intercomparison of Satellite-Derived Snow-Cover Maps

In anticipation of the launch of the Earth Observing System (EOS) Terra, and the PM-1 spacecraft in 1999 and 2000, respectively, efforts are ongoing to determine errors of satellite-derived snow-cover maps. EOS Moderate Resolution Imaging Spectroradiometer (MODIS) and Advanced Microwave Scanning Radiometer-E (AMSR-E) snow-cover products will be produced. For this study we compare snow maps covering the same study area acquired from different sensors using different snow- mapping algorithms. Four locations are studied: 1) southern Saskatchewan; 2) a part of New England (New Hampshire, Vermont and Massachusetts) and eastern New York; 3) central Idaho and western Montana; and 4) parts of North and South Dakota. Snow maps were produced using a prototype MODIS snow-mapping algorithm used on Landsat Thematic Mapper (TM) scenes of each study area at 30-m and when the TM data were degraded to 1 -km resolution. National Operational Hydrologic Remote Sensing Center (NOHRSC) 1 -km resolution snow maps were also used, as were snow maps derived from 1/2 deg. x 1/2 deg. resolution Special Sensor Microwave Imager (SSM/1) data. A land-cover map derived from the International Geosphere-Biosphere Program (IGBP) land-cover map of North America was also registered to the scenes. The TM, NOHRSC and SSM/I snow maps, and land-cover maps were compared digitally. In most cases, TM-derived maps show less snow cover than the NOHRSC and SSM/I maps because areas of incomplete snow cover in forests (e.g., tree canopies, branches and trunks) are seen in the TM data, but not in the coarser-resolution maps. The snow maps generally agree with respect to the spatial variability of the snow cover. The 30-m resolution TM data provide the most accurate snow maps, and are thus used as the baseline for comparison with the other maps. Comparisons show that the percent change in amount of snow cover relative to the 3 0-m resolution TM maps is lowest using the TM I -km resolution maps, ranging from 0 to 40%. The highest percent change (less than 100%) is found in the New England study area, probably due to the presence of patchy snow cover. A scene with patchy snow cover is more difficult to map accurately than is a scene with a well-defined snowline such as is found on the North and South Dakota scene where the percent change ranged from 0 to 40%. There are also some important differences in the amount of snow mapped using the two different SSM/I algorithms because they utilize different channels

Rearranging Edgeworth-Cornish-Fisher Expansions

This paper applies a regularization procedure called increasing rearrangement to monotonize Edgeworth and Cornish-Fisher expansions and any other related approximations of distribution and quantile functions of sample statistics. Besides satisfying the logical monotonicity, required of distribution and quantile functions, the procedure often delivers strikingly better approximations to the distribution and quantile functions of the sample mean than the original Edgeworth-Cornish-Fisher expansions.Comment: 17 pages, 3 figure

Applied Research on Leadership in Community Colleges

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/68252/2/10.1177_009155218501200407.pd