Type-Writer Line-Shift. (open access)

Type-Writer Line-Shift.

Patent for line shifter attachment for typewriter which makes it possible for the typewriter to print characters above or below the standard line of print. This attachment makes the typewriter useful for taking stenographic notes.
Date: May 30, 1916
Creator: Byrne, Henry E.
Object Type: Patent
System: The Portal to Texas History
Status report on SHARP coupling framework. (open access)

Status report on SHARP coupling framework.

This report presents the software engineering effort under way at ANL towards a comprehensive integrated computational framework (SHARP) for high fidelity simulations of sodium cooled fast reactors. The primary objective of this framework is to provide accurate and flexible analysis tools to nuclear reactor designers by simulating multiphysics phenomena happening in complex reactor geometries. Ideally, the coupling among different physics modules (such as neutronics, thermal-hydraulics, and structural mechanics) needs to be tight to preserve the accuracy achieved in each module. However, fast reactor cores in steady state mode represent a special case where weak coupling between neutronics and thermal-hydraulics is usually adequate. Our framework design allows for both options. Another requirement for SHARP framework has been to implement various coupling algorithms that are parallel and scalable to large scale since nuclear reactor core simulations are among the most memory and computationally intensive, requiring the use of leadership-class petascale platforms. This report details our progress toward achieving these goals. Specifically, we demonstrate coupling independently developed parallel codes in a manner that does not compromise performance or portability, while minimizing the impact on individual developers. This year, our focus has been on developing a lightweight and loosely coupled framework targeted at UNIC …
Date: May 30, 2008
Creator: Caceres, A.; Tautges, T. J.; Lottes, J.; Fischer, P.; Rabiti, C.; Smith, M. A. et al.
Object Type: Report
System: The UNT Digital Library
Solvable Examples of Drift and Diffusion of Ions in Non-uniform Electric Fields (open access)

Solvable Examples of Drift and Diffusion of Ions in Non-uniform Electric Fields

The drift and diffusion of a cloud of ions in a fluid are distorted by an inhomogeneous electric field. If the electric field carries the center of the distribution in a straight line and the field configuration is suitably symmetric, the distortion can be calculated analytically. We examine the specific examples of fields with cylindrical and spherical symmetry in detail assuming the ion distributions to be of a generally Gaussian form. The effects of differing diffusion coefficients in the transverse and longitudinal directions are included.
Date: May 30, 2008
Creator: Cahn, Robert; Cahn, Robert N. & Jackson, John David
Object Type: Article
System: The UNT Digital Library
Acetylene-Gas Generator. (open access)

Acetylene-Gas Generator.

Patent for a new and useful acetylene gas generator, including instructions and illustrations.
Date: May 30, 1899
Creator: Camp, Charles M.
Object Type: Patent
System: The Portal to Texas History
Hanford Contaminant Distribution Coefficient Database and Users Guide (open access)

Hanford Contaminant Distribution Coefficient Database and Users Guide

This report compiles in a single source the Kd values measured with Hanford sediment for radionuclides and toxic compounds that have the greatest potential for driving risk to human health and safety in the vadose zone and groundwater at the Hanford Site.
Date: May 30, 2002
Creator: Cantrell, Kirk J.; Serne, R. Jeffrey & Last, George V.
Object Type: Report
System: The UNT Digital Library
Remaining Sites Verification Package for the 100-F-44:2, Discovery Pipeline Near 108-F Building, Waste Site Reclassification Form 2007-006 (open access)

Remaining Sites Verification Package for the 100-F-44:2, Discovery Pipeline Near 108-F Building, Waste Site Reclassification Form 2007-006

The 100-F-44:2 waste site is a steel pipeline that was discovered in a junction box during confirmatory sampling of the 100-F-26:4 pipeline from December 2004 through January 2005. The 100-F-44:2 pipeline feeds into the 100-F-26:4 subsite vitrified clay pipe (VCP) process sewer pipeline from the 108-F Biology Laboratory at the junction box. In accordance with this evaluation, the confirmatory sampling results support a reclassification of this site to No Action. The current site conditions achieve the remedial action objectives and the corresponding remedial action goals established in the Remaining Sites ROD. The results of confirmatory sampling show that residual contaminant concentrations do not preclude any future uses and allow for unrestricted use of shallow zone soils. The results also demonstrate that residual contaminant concentrations are protective of groundwater and the Columbia River.
Date: May 30, 2008
Creator: Capron, J. M.
Object Type: Report
System: The UNT Digital Library
Drop oscillation and mass transfer in alternating electric fields. Progress report (open access)

Drop oscillation and mass transfer in alternating electric fields. Progress report

After the second annual progress report to DOE in July 1990, we continued the experimental work for another liquid system. The mathematical model was also improved to include secondary effects due to drop deformation and charge redistribution on the deformed drop surface. Originally, we planned to study a mass transfer process after the hydrodynamic modelling. Due to difficulty in measuring drop concentration during oscillations, we decided to study a heat transfer process instead. Using the analogy between the mass transfer and the heat transfer, we can easily extend the results for the heat transfer study to the mass transfer problem.
Date: May 30, 1991
Creator: Carleson, T. E. & Yang, W.
Object Type: Report
System: The UNT Digital Library
Drop oscillation and mass transfer in alternating electric fields (open access)

Drop oscillation and mass transfer in alternating electric fields

After the second annual progress report to DOE in July 1990, we continued the experimental work for another liquid system. The mathematical model was also improved to include secondary effects due to drop deformation and charge redistribution on the deformed drop surface. Originally, we planned to study a mass transfer process after the hydrodynamic modelling. Due to difficulty in measuring drop concentration during oscillations, we decided to study a heat transfer process instead. Using the analogy between the mass transfer and the heat transfer, we can easily extend the results for the heat transfer study to the mass transfer problem.
Date: May 30, 1991
Creator: Carleson, T.E. & Yang, W.
Object Type: Report
System: The UNT Digital Library
Etching Metals by Ionic Bombardment (open access)

Etching Metals by Ionic Bombardment

None
Date: May 30, 1954
Creator: Carlson, A. J.; Williams, J. T.; Rogers, B. A. & Manthos, E. J.
Object Type: Report
System: The UNT Digital Library
Mitigating atmospheric effects in high-resolution infra-red surveillance imagery with bispectral speckle imaging (open access)

Mitigating atmospheric effects in high-resolution infra-red surveillance imagery with bispectral speckle imaging

Obtaining a high-resolution image of an object or scene from a long distance away can be very problematic, even with the best optical system. This is because atmospheric blurring and distortion will limit the resolution and contrast of high-resolution imaging systems with substantial sized apertures over horizontal and slant paths. Much of the horizontal and slant-path surveillance imagery we have previously collected and successfully enhanced has been collected at visible wavelengths where atmospheric effects are the strongest. Imaging at longer wavelengths has the benefit of seeing through obscurants or even at night, but even though the atmospheric effects are noticeably reduced, they are nevertheless present, especially near the ground. This paper will describe our recent work on enhanced infrared (IR) surveillance using bispectral speckle imaging. Bispectral speckle imaging in this context is an image postprocessing algorithm that aims to solve the atmospheric blurring and distortion problem of imaging through horizontal or slant path turbulence. A review of the algorithm as well as descriptions of the IR camera and optical systems used in our data collections will be given. Examples of horizontal and slant-path imagery before and after speckle processing will also be presented to demonstrate the resolution improvement gained by …
Date: May 30, 2006
Creator: Carrano, C J
Object Type: Article
System: The UNT Digital Library
Automatic Street Car Coupling (open access)

Automatic Street Car Coupling

Patent for automatic street car coupling.
Date: May 30, 1905
Creator: Cary, Lewis C.; Caldwell, Julia & Swiney, Everett E.
Object Type: Patent
System: The Portal to Texas History
WATER DRAINAGE MODEL (open access)

WATER DRAINAGE MODEL

The drainage of water from the emplacement drift is essential for the performance of the EBS. The unsaturated flow properties of the surrounding rock matrix and fractures determine how well the water will be naturally drained. To enhance natural drainage, it may be necessary to introduce engineered drainage features (e.g. drilled holes in the drifts), that will ensure communication of the flow into the fracture system. The purpose of the Water Drainage Model is to quantify and evaluate the capability of the drift to remove water naturally, using the selected conceptual repository design as a basis (CRWMS M&O, 1999d). The analysis will provide input to the Water Distribution and Removal Model of the EBS. The model is intended to be used to provide postclosure analysis of temperatures and drainage from the EBS. It has been determined that drainage from the EBS is a factor important to the postclosure safety case.
Date: May 30, 2000
Creator: Case, J.B.
Object Type: Report
System: The UNT Digital Library
Sweep-Wing Attatchment for Plows (open access)

Sweep-Wing Attatchment for Plows

Patent for adjustable sweep wings that attach near the shovel or blades of a plow, and which will vary the throw of the soil as it is dug by the plow.
Date: May 30, 1916
Creator: Casstephens, James A.
Object Type: Patent
System: The Portal to Texas History
Multiscale Genetic Structure of Yellowstone Cutthroat Trout in the Upper Snake River Basin. (open access)

Multiscale Genetic Structure of Yellowstone Cutthroat Trout in the Upper Snake River Basin.

Populations of Yellowstone cutthroat trout Oncorhynchus clarkii bouvierii have declined throughout their native range as a result of habitat fragmentation, overharvest, and introductions of nonnative trout that have hybridized with or displaced native populations. The degree to which these factors have impacted the current genetic population structure of Yellowstone cutthroat trout populations is of primary interest for their conservation. In this study, we examined the genetic diversity and genetic population structure of Yellowstone cutthroat trout in Idaho and Nevada with data from six polymorphic microsatellite loci. A total of 1,392 samples were analyzed from 45 sample locations throughout 11 major river drainages. We found that levels of genetic diversity and genetic differentiation varied extensively. The Salt River drainage, which is representative of the least impacted migration corridors in Idaho, had the highest levels of genetic diversity and low levels of genetic differentiation. High levels of genetic differentiation were observed at similar or smaller geographic scales in the Portneuf River, Raft River, and Teton River drainages, which are more altered by anthropogenic disturbances. Results suggested that Yellowstone cutthroat trout are naturally structured at the major river drainage level but that habitat fragmentation has altered this structuring. Connectivity should be restored via …
Date: May 30, 2006
Creator: Cegelski, Christine C. & Campbell, Matthew R.
Object Type: Article
System: The UNT Digital Library
Cover for Kettles and the Like. (open access)

Cover for Kettles and the Like.

Patent for an improved cover for kettles, pots, saucepans, and other culinary vessels. The improved cover prevents hands from being burned by steam from the vessel.
Date: May 30, 1911
Creator: Cepeda, Josefa E.
Object Type: Patent
System: The Portal to Texas History
Fruit-Gatherer and Pruning Implement. (open access)

Fruit-Gatherer and Pruning Implement.

Patent for a combination orchard tool that gathers fruit, holds it in a bag, and can sever fruit stems in order to pick them. After severing, the fruit falls into the bag. The operator pulls a string that falls along the long handle, and the knife springs up from the bag so that it can sever the stems.
Date: May 30, 1893
Creator: Chambers, Silas
Object Type: Patent
System: The Portal to Texas History
Subcellular boron and fluorine distributions with SIMS ion microscopy in BNCT and cancer research (open access)

Subcellular boron and fluorine distributions with SIMS ion microscopy in BNCT and cancer research

The development of a secondary ion mass spectrometry (SIMS) based technique of Ion Microscopy in boron neutron capture therapy (BNCT) was the main goal of this project, so that one can study the subcellular location of boron-10 atoms and their partitioning between the normal and cancerous tissue. This information is fundamental for the screening of boronated drugs appropriate for neutron capture therapy of cancer. Our studies at Cornell concentrated mainly on studies of glioblastoma multiforme (GBM). The early years of the grant were dedicated to the development of cryogenic methods and correlative microscopic approaches so that a reliable subcellular analysis of boron-10 atoms can be made with SIMS. In later years SIMS was applied to animal models and human tissues of GBM for studying the efficacy of potential boronated agents in BNCT. Under this grant the SIMS program at Cornell attained a new level of excellence and collaborative SIMS studies were published with leading BNCT researchers in the U.S.
Date: May 30, 2008
Creator: Chandra, Subhash
Object Type: Report
System: The UNT Digital Library
MHD Field Line Resonances and Global Modes in Three-Dimensional Magnetic Fields (open access)

MHD Field Line Resonances and Global Modes in Three-Dimensional Magnetic Fields

By assuming a general isotropic pressure distribution P = P (y,a), where y and a are three-dimensional scalar functions labeling the field lines with B = -y x -a, we have derived a set of MHD eigenmode equations for both global MHD modes and field line resonances (FLR). Past MHD theories are restricted to isotropic pressures with P = P (y only). The present formulation also allows the plasma mass density to vary along the field line. The linearized ideal-MHD equations are cast into a set of global differential equations from which the field line resonance equations of the shear Alfvin waves and slow magnetosonic modes are naturally obtained for general three-dimensional magnetic field geometries with flux surfaces. Several new terms associated with the partial derivative of P with respect to alpha are obtained. In the FLR equations, a new term is found in the shear Alfvin FLR equation due to the geodesic curvature and the pressure gradient in the poloidal flux surface. The coupling between the shear Alfvin waves and the magnetosonic waves is through the combined effects of geodesic magnetic field curvature and plasma pressure as previously derived. The properties of the FLR eigenfunctions at the resonance field …
Date: May 30, 2002
Creator: Cheng, C. Z.
Object Type: Report
System: The UNT Digital Library
Field Line Resonances in Quiet and Disturbed Time Three-dimensional Magnetospheres (open access)

Field Line Resonances in Quiet and Disturbed Time Three-dimensional Magnetospheres

Numerical solutions for field line resonances (FLR) in the magnetosphere are presented for three-dimensional equilibrium magnetic fields represented by two Euler potentials as B = -j Y -a, where j is the poloidal flux and a is a toroidal angle-like variable. The linearized ideal-MHD equations for FLR harmonics of shear Alfvin waves and slow magnetosonic modes are solved for plasmas with the pressure assumed to be isotropic and constant along a field line. The coupling between the shear Alfvin waves and the slow magnetosonic waves is via the combined effects of geodesic magnetic field curvature and plasma pressure. Numerical solutions of the FLR equations are obtained for a quiet time magnetosphere as well as a disturbed time magnetosphere with a thin current sheet in the near-Earth region. The FLR frequency spectra in the equatorial plane as well as in the auroral latitude are presented. The field line length, magnetic field intensity, plasma beta, geodesic curvature and pressure gradient in the poloidal flux surface are important in determining the FLR frequencies. In general, the computed shear Alfvin FLR frequency based on the full MHD model is larger than that based on the commonly adopted cold plasma model in the beq > …
Date: May 30, 2002
Creator: Cheng, C. Z. & Zaharia, S.
Object Type: Report
System: The UNT Digital Library
FIRST Winged And X-Shaped Radio Source Candidates (open access)

FIRST Winged And X-Shaped Radio Source Candidates

A small number of double-lobed radio galaxies are found with an additional pair of extended low surface brightness 'wings' of emission giving them a distinctive 'X'-shaped appearance. One popular explanation for the unusual morphologies posits that the central supermassive black hole (SMBH)/accretion disk system underwent a recent realignment; in a merger scenario, the active lobes mark the post-merger axis of the resultant system (e.g., Merritt & Ekers 2002). However, this and other interpretations are not well tested on the few (about one dozen) known examples. In part to remedy this deficiency, a large sample of winged and X-shaped radio sources is being compiled for a systematic study. An initial sample of 100 new candidates is described as well as some of the follow-up work being pursued to test the different scenarios.
Date: May 30, 2007
Creator: Cheung, C.C.; /KIPAC, Menlo Park; Springmann, A. & /KIPAC, Menlo Park /Wellesley Coll.
Object Type: Article
System: The UNT Digital Library
A Sensitivity Study of the Urban Effect on a Regional-Scale Model: An Idealized Case (open access)

A Sensitivity Study of the Urban Effect on a Regional-Scale Model: An Idealized Case

Urban infrastructure impacts the surface and atmospheric properties, such as wind, temperature, turbulence and radiation budgets. The well-recognized urban heat island phenomenon, characterized by the temperature contrast between the city and the surrounding rural area, is one such impact. Many field experiments have been conducted to study the urban heat island effect, which is typically most intense under clear sky and weak ambient wind conditions at night. In some cases, a cool island may even exist during the day. To consider these urban effects in a numerical model with horizontal grid resolution on the order of kilometers, some sort of parameterization is required to account for the sub-grid building impacts on these effects. To this end, Brown and Williams (1998) have developed an urban parameterization by extending Yamada's (1982) forest canopy scheme to include drag, turbulent production, anthropogenic and rooftop heating effects, and radiation balance in a mesoscale model. In this study, we further modify this urban parameterization by adding the rooftop surface energy equation to eliminate a simplifying assumption that the rooftop is at the same temperature as the air. The objective of this work is to assess the impact of individual process of this modified urban canopy parameterization …
Date: May 30, 2000
Creator: Chin, H. N. S.; Leach, M. J. & Brown, M. J.
Object Type: Article
System: The UNT Digital Library
Spectroscopic Characterization of Post-Cluster Argon Plasmas During the Blast Wave Expansion (open access)

Spectroscopic Characterization of Post-Cluster Argon Plasmas During the Blast Wave Expansion

In this work we present temperature diagnostics of an expanding laser-produced argon plasma. A short-pulse (35fs) laser with an intensity of I = 10{sup 17}W/cm{sup 2} deposits {approx} 100 mJ of energy into argon clusters. This generates a hot plasma filament that develops into a cylindrically expanding shock. We develop spectral diagnostics for the temperatures of the argon plasma in the shock region and the preionized region ahead of the shock. A collisional-radiative model is applied to explore line intensity ratios derived from Ar II - Ar IV spectra that are sensitive to temperatures in a few eV range. The results of hydrodynamic simulations are employed to derive a time dependent radiative transport calculation that generates the theoretical emission spectra from the expanding plasma.
Date: May 30, 2002
Creator: Ching, H,-K.; Fournier, K.B.; Edwards, M. J.; Scott, H.A.; Cattolica, R.; Ditmire, T. et al.
Object Type: Article
System: The UNT Digital Library
Mineralogic variation in drill holes USW NRG-6, NRG-7/7a, SD-7, SD-9, SD-12, and UZ{number_sign}14: New data from 1996--1997 analyses (open access)

Mineralogic variation in drill holes USW NRG-6, NRG-7/7a, SD-7, SD-9, SD-12, and UZ{number_sign}14: New data from 1996--1997 analyses

New quantitative X-ray diffraction (QXRD) mineralogic data have been obtained for samples from drill holes NRG-6, NRG-7/7A, SD-7, SD-9, SD- 12, and UZ{number_sign}14. In addition, new QXRD analyses were obtained on samples located in a strategic portion of drill hole USW H-3. These data improve our understanding of the mineral stratigraphy at Yucca Mountain, and they further constrain the 3-D Mineralogic Model of Yucca Mountain. Some of the unexpected findings include the occurrence of the zeolite chabazite in the vitric zone of USW SD-7, broad overlap of vitric and zeolitic horizons (over vertical ranges up to 70 m), and the previously unrecognized importance of the bedded tuft beneath the Calico Hills Formation as a subunit with generally more extensive zeolitization than the Calico Hills Formation in the southern part of the potential repository area. Reassessment of data from drill hole USW H-5 suggests that the zeolitization of this bedded unit occurs in the northwestern part of the repository exploration block as well. Further analyses of the same interval in USW H-3, however, have not permitted the same conclusion to be reached for the southwestern part of the repository block because of the much poorer quality of the cuttings in H-3 …
Date: May 30, 1997
Creator: Chipera, S. J.; Vaniman, D. T.; Bish, D. L. & Carey, J. W.
Object Type: Report
System: The UNT Digital Library
Impact Of Melter Internal Design On Off-Gas Flammability (open access)

Impact Of Melter Internal Design On Off-Gas Flammability

The purpose of this study was to: (1) identify the more dominant design parameters that can serve as the quantitative measure of how prototypic a given melter is, (2) run the existing DWPF models to simulate the data collected using both DWPF and non-DWPF melter configurations, (3) confirm the validity of the selected design parameters by determining if the agreement between the model predictions and data is reasonably good in light of the design and operating conditions employed in each data set, and (4) run Computational Fluid Dynamics (CFD) simulations to gain new insights into how fluid mixing is affected by the configuration of melter internals and to further apply the new insights to explaining, for example, why the agreement is not good.
Date: May 30, 2012
Creator: Choi, A. S. & Lee, S. Y.
Object Type: Report
System: The UNT Digital Library