701 research outputs found
Manual for Program PSTRESS: Peel stress computation
Described is the use of the interactive FORTRAN computer program PSTRESS, which computes a closed form solution for two bonded plates subjected to applied moments, vertical shears, and in-plane forces. The program calculates in-plane stresses in the plates, deflections of the plates, and peel and shear stresses in the adhesive. The document briefly outlines the analytical method used by PSTRESS, describes the input and output of the program, and presents a sample analysis. The results of the latter are shown to be within a few percent of results obtained using a NASTRAN finite element analysis. An appendix containing a listing of PSTRESS is included
Preparation and Dielectric Measurements of Niobium Pentaoxide Doped Barium Strontium Titanate Glass and Glass Ceramics
(Ba0.2Sr0.8)TiO3-B2O3-K2O based glass as well as glass ceramic with and without 0.1 mol % Nb2O5 were developed by the conventional melt quench method. XRD and FTIR spectra of the glass samples confirms the formation of amorphous structure and presence of stretching and deformation vibrations of B-O-Si linkage and Si-O-Si bridges, respectively. Differential scanning calorimetry (DSC) of the glass sample reveals that addition of 0.1 mol % Nb2O5 elevates the onset of crystallization temperature from ~600°C to ~675°C. XRD reveals that desired SrBaTiO3 phase was formed upon controlled crystallization of the glass samples at ~750-780°C for 3h. SEM-EDS analysis of the un-doped glass ceramic sample shows the formation of micron sized flower-like, and needle shaped crystals. However addition of 0.1 mol % Nb2O5 modifies the microstructure to irregular shaped crystals. Results from the dielectric measurements suggest that upon addition of 0.1 mol % Nb2O5 the dielectric constant remains the same as compared to the un-doped sampl
Assessing the Impact of the Yellowstone TV Series on Montana\u27s Tourism Economy
The hugely successful and popular dramatic television show Yellowstone, which portrays the fictional Dutton family ranch in Montana, has sparked the interest of a worldwide audience in our state. In addition to its critical and commercial success, the show has emerged as a significant factor in the marketing of Montana, with its more than 10 million viewers treated to storylines, characters and scenery of the mountain west. How has the show’s success affected the arrival and subsequent spending of visitors to the state? A new study jointly produced by the Bureau of Business and Economic Research (BBER) and the Institute for Tourism and Recreation Research (ITRR) at the University of Montana addresses that question
An analog light scattering experiment of hexagonal icelike particles. part II: experimental and theoretical results
Journal ArticleThe scattering properties of hexagonal icelike crystals as measured in the analog manner by the experimental apparatus described in Part I are presented. The crystals are made out of sodium fluoride (NaF), which has an index of refraction similar to that of water ice. The experimentally determined light intensities scattered from fixed and integrated random orientations of a NaF hexagonal crystal, oriented to produce a two-dimensional scattering profile, compares favorably to the expectations derived from geometric ray tracing methods. Also, the three-dimensional scattering properties of a simulated NaF Parry column, a NaF crystal aggregate, and a NaF plate with a rough surface are compared to results computed from the geometric ray tracing approach. From these comparisons the Author's conclude that within the experimental measurement uncertainties and to the degree in which the NaF crystal models approach the geometric and optical ideal, the geometric ray tracing approach is an excellent method to determine the single-scattering properties of hexagonal ice crystals of various shapes in the geometric optics domain
An analog light scattering experiment of hexagonal icelike particles. part I: experimental apparatus and test measurements
Journal ArticleAn experimental apparatus to measure the scattering properties of hexagonal icelike particles in the analog manner at the helium neon laser wavelength of 0.633 mm has been designed and built. The instrument consists of an array of 36 highly sensitive and linear photodiode detectors that are positioned to measure the light between the scattering angles of 2.88 and 177.28 in approximately 2.58 increments and at any desired azimuthal angle. This array is calibrated such that the retrieved light signals are corrected to the actual light seen by the detectors to within approximately 6% at all applicable scattering and azimuthal angles. A system of electro-mechanical positioners places the sample at the desired and known position. A glass sphere and a glass fiber configured to scatter light like an infinite cylinder was used to test the operational effectiveness and calibration of the experimental apparatus. The phase functions for the parallel and perpendicular components determined from the experimental results match closely with the results computed from Mie theory
Real Property (1969 Annual Survey of Michigan Law)
Over 65 cases were decided by Michigan courts during the Survey period dealing with some aspect of property law. Most of these cases raise property questions which are only incidental to nonproperty issues and, as a result, will not be discussed in this article. Similarly, those cases which have no precedential value, restate old law, or confirm an established trend are not considered worthy of discussion. Accordingly, in our judgment, only 16 property cases decided during the Survey period merit protracted attention
Landscape-Lifescape Analysis in Forest Protection and Safety on Various of Forest Functions in Minraleng Watershed of Maros Regency, South Sulawesi
The study was conducted in upstream area of Minraleng Watershed. This study aims to determine the carrying capacity of landscape and lifescape in order to suppor protection and security of various functions of forest areas. The method used is PAR approach with discriminant analysis. The result of the research shows that carrying capacity of landscape in order to support the protection and security in various functions of forest area can be seen with discriminant equation D = -1,86 + 6,25X11 + 6,15X12 + 6.24X13 + 5.81X14 + 6.25X15 - 0.062X16 + 0.16X17. Based on the equation it can be seen that each variable of the landscape has a significant impact on the protection and protection of forests in various functions of forest areas. The most influential variables are topography, climate and land cover. Based on the results of discriminant analysis, we obtain the equation of lifescpae equation analysis D = -3,69 + 6,25X21. Which means the lifescape support capacity (life) in supporting the protection and protection of forests in various functions of forest areas is influenced by a single factor of livelihood strategy. Based on lifescape and landscape analysis approach should refer to some variables that support the sustainability of forest protection. Keywords: Landscape, Lifescape, Forest Protection, Forest Functio
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