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Country
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Year
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The Albany News (Albany, Tex.), Vol. 120, No. 36, Ed. 1 Thursday, February 8, 1996
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
February 8, 1996
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 120, No. 37, Ed. 1 Thursday, February 15, 1996
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
February 15, 1996
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 120, No. 38, Ed. 1 Thursday, February 22, 1996
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
February 22, 1996
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 120, No. 39, Ed. 1 Thursday, February 29, 1996
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
February 29, 1996
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
An algorithm for image clusters detection and identification based on color for an autonomous mobile robot
An algorithm for detection and identification of image clusters or {open_quotes}blobs{close_quotes} based on color information for an autonomous mobile robot is developed. The input image data are first processed using a crisp color fuszzyfier, a binary smoothing filter, and a median filter. The processed image data is then inputed to the image clusters detection and identification program. The program employed the concept of {open_quotes}elastic rectangle{close_quotes}that stretches in such a way that the whole blob is finally enclosed in a rectangle. A C-program is develop to test the algorithm. The algorithm is tested only on image data of 8x8 sizes with different number of blobs in them. The algorithm works very in detecting and identifying image clusters.
Date:
February 1, 1996
Creator:
Uy, D.L.
Object Type:
Report
System:
The UNT Digital Library
Algorithms for PAC learning of functions with smoothness properties
We present three computationally efficient algorithms for Probably and Approximately Correct (PAC) learning of an unknown function f: [0, 1]{sup d} {r_arrow} [0,1], based on finite samples. The function f is chosen from the family F {intersection} C([0,1]{sup d}) or F {intersection} L{sup {infinity}} ([0,1]{sup d}), where F has either bounded modulus of smoothness or bounded capacity or both. Three function estimators based on: local averaging; nearest neighbor rule; and Nadaraya-Watson estimator, all computed using the Haar system, are analyzed. With no preprocessing of the sample, estimated function value at a given point can be computed in O(n) time. With preprocessing, the first and third estimators can be computed in O((log n){sup d}) time using a range-tree precomputed in O(dn(log n){sup d}) time.
Date:
February 1, 1996
Creator:
Rao, N.S.V. & Protopopescu, V.A.
Object Type:
Article
System:
The UNT Digital Library
Alkaline oxide conversion coatings for aluminum alloys
Three related conversion coating methods are described that are based on film formation which occurs when aluminum alloys are exposed to alkaline Li salt solutions. Representative examples of the processing methods, resulting coating structure, composition and morphology are presented. The corrosion resistance of these coatings to aerated 0.5 M NaCl solution has been evaluated as a function of total processing time using electrochemical impedance spectroscopy (EIS). This evaluation shows that excellent corrosion resistance can be uniformly achieved using no more than 20 minutes of process time for 6061-T6. Using current methods a minimum of 80 minutes of process time is required to get marginally acceptable corrosion resistance for 2024-T3. Longer processing times are required to achieve uniformly good corrosion resistance.
Date:
February 1, 1996
Creator:
Buchheit, R.G.
Object Type:
Article
System:
The UNT Digital Library
Alpha contamination assessment for D&D activities: Monitoring concrete surfaces
The process of decontaminating and decomissioning former nuclear facilities sometimes requires that large areas of concrete and other materials be scanned to verify they are not contaminated. A specially developed concrete surface monitor (CSM) can greatly expedite that process. The CSM is basically an aluminum box, open on the bottom, that uses an electrostatic field to transport ions created by alpha particles interacting with ambient air to a collection grid or plate. A sensitive electrometer measures the resulting current, which is essentially proportional to surface alpha activity. The initial prototype CSM surveys a surface area of some 300 cm{sup 2} at one time, while a second-generation prototype surveys 2500 cm{sup 2} and is designed to compensate automatically for radon, which can cause substantial errors in estimating surface contamination in some cases. These monitors have been successfully demonstrated on a number of concrete surfaces in situ as well as on concrete pieces cut from former facilities.
Date:
February 1, 1996
Creator:
Rawool-Sullivan, M.W.; Conaway, J.G. & MacArthur, D.W.
Object Type:
Report
System:
The UNT Digital Library
Alpha contamination assessment for D&D activities: Monitoring inside glove boxes and vessels
We have developed a new approach to glove box monitoring that involves drawing air out of one glove port through a detection grid that collects ions created in the air inside the glove box by ionizing radiation, especially alpha radiation. The charge deposited on the detection grid by the ions is measured with a sensitive electrometer. The air can be circulated back to the glove box through the other glove port, preventing contamination from leaving the glove box and detector system. Initial experiments using a mock-up constructed of sheet metal indicate that this technology provides the measurement technique needed to perform a defensible, non-invasive measurement of alpha contamination inside glove boxes destined for waste disposal. This can result in an enormous cost savings if a given glove box can be shown to fall into the catagory of Low-Level Waste rather than Trans-Uranic Waste. Considering that hundreds of glove boxes contaminated with plutonium will be taken out of service at various nuclear facilities over the next few years, the potential cost savings associated with disposal as LLW rather than TRU waste are substantial.
Date:
February 1, 1996
Creator:
Rawool-Sullivan, M. W.; Bolton, R. D.; Conaway, J. G. & MacArthur, D. W.
Object Type:
Report
System:
The UNT Digital Library
Alpha contamination assessment for D&D activities: Monitoring pipe interiors
We have developed a prototype instrument capable of assessing alpha-emitting contamination on interior surfaces of ducts, pipes, tanks, and other enclosed volumes without inserting a probe. Air is drawn through the potentially contaminated volume and then through a detection grid, where ions created in the air by alpha particles are collected and the resulting charge measured with a sensitive electrometer. A filter at the intake end of the contaminated volume excludes externally created ions, so only ions generated inside the volume are detected. We have studied the response of this prototype in initial experiments using calibrated alpha sources with various pipe diameters and configurations, air flows, and source locations in the pipes. The results of these experiments indicate that this method can be an effective approach to assessing internal contamination.
Date:
February 1, 1996
Creator:
Rawool-Sullivan, M.W.; Conaway, J.G.; MacArthur, D.W. & Vaccarella, J.
Object Type:
Report
System:
The UNT Digital Library
Alpha contamination assessment for D&D activities: Technology overview
Instruments based on the principle of Long-Range Alpha Detection (LRAD) detect the ions created in ambient air by Ionizing radiation, particularly alpha radiation, interacting with air molecules. Using either an electrostatic field or forced convection, these ions can be transported to a detection grid where the ions produce a small current that is measured with a sensitive electrometer. LRAD-based instruments can give separate, simultaneous measurements of alpha-emitting solids and inert radioactive gases such as radon. LRAD-based instruments assess surface contamination on an entire object or large surface area in a single, rapid measurement, including relatively inaccessible areas such as interior surfaces of pipes and process equipment. The LRAD concept is well proven and has been developed into a range of different radiation detection devices. This paper presents an overview of the technology, while several associated papers explore specific applications in greater detail.
Date:
February 1, 1996
Creator:
Conaway, J.G.; Rawool-Sullivan, M.W. & MacArthur, D.W.
Object Type:
Report
System:
The UNT Digital Library
An alternate method for prediction of the micromechanical properties of laminated composites
The theory for an alternate method to classical laminate theory for the prediction of the macromechanical properties of laminated composite materials is developed and verified by comparing the predicted lamina stresses to those from a detailed finite element calculation. The usefulness of the method is demonstrated by comparing the load-displacement calculation using the equivalent properties to experimentally measured data from a 4-Point bending experiment.
Date:
February 1, 1996
Creator:
Bennett, J.; Kenamond, M. & Haberman, K.
Object Type:
Article
System:
The UNT Digital Library
An alternative approach to filled--via processing
In order to create sub micron vias between metal layers on silicon IC circuits, the tungsten filled via processes have been in a constant state of development over the past 15 years. Processing is complex, expensive, and difficult to reproduce. The introduction of galvanic cells, via undercutting, and exposed plugs are just some of the plagues that have hit several users of the technology. Discussed in this paper is an alternative approach to the complex tungsten filled via interconnect process. The proposed process yields well at sub micron geometries, is easy to perform, and is inexpensive compared to the tungsten filled via process. Contact resistance improves greatly over the standard tungsten process. The test run achieved a mean value of 0.25 ohms per via compared to historic tungsten process that yields 0.4 ohms per via. The distribution was also excellent with sigma recorded at 0.025 ohms per via.
Date:
February 1, 1996
Creator:
Farino, A.J.
Object Type:
Article
System:
The UNT Digital Library
Alternative cathodes for molten carbonate fuel cells
Argonne National Laboratory (ANL) is developing advanced cathodes for pressurized operation of the molten carbonate fuel cell (MCFC). The present cathode, lithiated nickel oxide, tends to transport to the anode of the MCFC, where it is deposited as metallic nickel. The rate of transport increases with increasing CO{sub 2} pressure. This increase is due to an increased solubility of nickel oxide (NiO) in the molten carbonate electrolyte. An alternative cathode is lithium cobaltate (LiCoO{sub 2})-Solid solutions of LiCoO{sub 2} in LiFeO{sub 2} show promise for long-lived cathode materials. We have found that small additions of LiCoO{sub 2} to LiFeO{sub 2} markedly decrease the resistivity of the cathode material. Cells containing the LiCoO{sub 2}-LiFeO{sub 2} cathodes have stable performance for more than 2100 h of operation and display lower cobalt migration.
Date:
February 1996
Creator:
Bloom, I.; Lanagan, M.; Roche, M. F. & Krumpelt, M.
Object Type:
Report
System:
The UNT Digital Library
Alternatives to traditional transportation fuels 1994. Volume 1
In this report, alternative and replacement fuels are defined in accordance with the EPACT. Section 301 of the EPACT defines alternative fuels as: methanol, denatured ethanol, and other alcohols; mixtures containing 85% or more (or such other percentage, but not less than 70%, as determined by the Secretary of Energy, by rule, to provide for requirements relating to cold start, safety, or vehicle functions) by volume of methanol, denatured ethanol, and other alcohols with gasoline or other fuels; natural gas; liquefied petroleum gas; hydrogen; coal-derived liquid fuels; fuels (other than alcohol) derived from biological materials; electricity (including electricity from solar energy); and any other fuel the Secretary determines, by rule, is substantially not petroleum and would yield substantial energy security benefits and substantial environmental benefits. The EPACT defines replacement fuels as the portion of any motor fuel that is methanol, ethanol, or other alcohols, natural gas, liquefied petroleum gas, hydrogen, coal-derived liquid fuels, fuels (other than alcohol) derived from biological materials, electricity (including electricity from solar energy), ethers, or any other fuel the Secretary of Energy determines, by rule, is substantially not petroleum and would yield substantial energy security benefits and substantial environmental benefits. This report covers only those alternative …
Date:
February 1, 1996
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 95, No. 283, Ed. 1 Thursday, February 1, 1996
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 1, 1996
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 95, No. 284, Ed. 1 Friday, February 2, 1996
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 2, 1996
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 95, No. 285, Ed. 1 Sunday, February 4, 1996
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 4, 1996
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 95, No. 286, Ed. 1 Monday, February 5, 1996
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 5, 1996
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 95, No. 286, Ed. 1 Monday, February 12, 1996
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 12, 1996
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 95, No. 287, Ed. 1 Tuesday, February 6, 1996
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 6, 1996
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 95, No. 287, Ed. 1 Tuesday, February 13, 1996
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 13, 1996
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 95, No. 288, Ed. 1 Wednesday, February 7, 1996
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 7, 1996
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 95, No. 288, Ed. 1 Wednesday, February 14, 1996
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 14, 1996
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History