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Stock Poisoning Due to Scarcity of Food

Description: "It is generally recognized that the heaviest losses of livestock from poisonous plants occur in seasons when feed is short, but the intimate relation between such losses and the food supply does not seem to be appreciated at its full value. If it were understood and acted upon intelligently there would be much less complaint of harm done by poisonous plants." -- p. 2
Date: 1913
Creator: Marsh, C. Dwight (Charles Dwight)
Partner: UNT Libraries Government Documents Department

Sulfur Poisoning of Fixed Beds of Iron Catalysts in the Fischer-Tropsch Synthesis

Description: From Introduction: "This bulletin describes the results of poisoning of fixed beds of reduced, carbided, and nitrided fused iron oxide catalysts and reduced steel turnings by H2S in 1H2 + 1CO synthesis gas in tests in which the temperature (1) was held constant and (2) was increased as required to maintain constant productivity."
Date: 1965
Creator: Anderson, R. B.; Karn, F. S.; Kelly, R. E. & Shultz, J. F.
Partner: UNT Libraries Government Documents Department

Lead-Based Paint Poisoning Prevention: Summary of Federal Mandates and Financial Assistance for Reducing Hazards in Housing

Description: This report discusses the federal strategy to reduce childhood exposure to lead-based paint (LBP). The federal Lead-Based Paint Poisoning Prevention Act (LBPPPA), as amended, establishes requirements and authorizes funding for the detection and control of LBP hazards in federally assisted housing.
Date: June 12, 2008
Creator: Schierow, Linda-Jo
Partner: UNT Libraries Government Documents Department

Microflora in Prepared Foods Dispensed from Eating Establishments in Dallas, Texas

Description: A bacteriological study was made of a number of prepared foods that were bought ready-to-eat, for home consumption, from several food establishments in Dallas, Texas. The purpose of this study was to show whether these foods could be a potential source of food poisoning; whether there are any particular foods that should have greater care than others in order to protect their quality; and whether the bacteriological contamination could have been prevented by strict observance of the city regulations for handling foods.
Date: August 1948
Creator: Phillips, Margaret
Partner: UNT Libraries

Milo as a Dry-Land Grain Crop

Description: Report explaining how farmers can successfully cultivate milo ( a variety of sorghum) in the semiarid plains of the southwestern United States.
Date: 1908
Creator: Ball, Carleton R. (Carleton Roy), 1873-1958 & Leidigh, A. H. (Arthur Henry), b. 1880
Partner: UNT Libraries Government Documents Department

Hydrogen Permeation Measurements of Partially Internally Oxidized Pd-Al Alloys in the Presence and Absence of CO

Description: Specific permeabilities and diffusion constants for H have been measured in a series of Pd-Al alloy membranes using a new method for activation of the membranes. The membranes have been partially internally oxidized at an elevated temperature before inserting into the apparatus for measuring H2 permeabilities. It has been observed that the kinetics of H2 absorption are faster for internally oxidized Pd-Al alloys than for pure Pd foil [1] and, in addition, the partially internally oxidized alloys offer a greater resistance to poisoning by CO(g) [2].
Date: October 29, 2003
Creator: Shanahan, K.L.
Partner: UNT Libraries Government Documents Department

HIGHLY SELF-SHIELDED BURNABLE POISONS

Description: A new and different type of burnable poison element which can be used essentially to match any decreasing reactivity curve in a reactor and still have a tolerable residue was studied. Specific application is made to Gd as the poison elements; however, the results would be similar for any other suitable high cross-section element such as Cd. (J.R.D.)
Date: March 1, 1963
Creator: Holl, R.J.
Partner: UNT Libraries Government Documents Department

Localized Pd Overgrowth on Cubic Pt Nanocrystals for Enhanced Electrocatalytic Oxidation of Formic Acid

Description: Single crystalline surface such as (100), (111), (110) has been studied as an idealized platform for electrocatalytic reactions since the atomic arrangement affects a catalytic property. The secondary metal deposition on these surfaces also alters the catalytic property often showing improvement such as poisoning decrease. On the other hand, electrocatalysts used for practical purpose usually have a size on the order of nanometers. Therefore, linking the knowledge from single crystalline studies to nanoparticle catalysts is of enormous importance. Recently, the Pt nanoparticles which surface structure was preferentially oriented was synthesized and used as electrocatalysts. Here, we demonstrate a rational design of a binary metallic nanocatalyst based on the single crystalline study.
Date: December 14, 2007
Creator: Lee, Hyunjoo; Habas, Susan; Somorjai, Gabor & Yang, Peidong
Partner: UNT Libraries Government Documents Department

Cathode/Interconnect Interactions

Description: The objectives of this project were to examine chromium poisoning in full cell tests, evaluate chromium release rates for oxides, and examine the effects of chromium in the cathode.
Date: January 27, 2005
Creator: Krumpelt, M.; Cruse, T.A. & Hash, M.
Partner: UNT Libraries Government Documents Department

The Locoweed Disease

Description: Revised edition. "Loco weeds are poisonous plants that have caused heavy losses of horses, cattle, and sheep in some parts of the West and Southwest. Three plants are known definitely to be locoes, a few others are probably injurious, and some suspected ones are harmless. The loco plants, their distribution, characteristics, and effects upon animals eating them, are described in this bulletin. Illustrations of the plants and of poisoned animals accompany the descriptions." -- p. ii
Date: 1936
Creator: Marsh, C. Dwight (Charles Dwight); Clawson, A. B. & Eggleston, W. W. (Willard Webster), b. 1863
Partner: UNT Libraries Government Documents Department

The Loco-Weed Disease

Description: "Loco weeds are poisonous plants that have caused heavy losses of horses, cattle, and sheep in some parts of the West and Southwest. Three plants are known definitely to be locoes, a few others are probably injurious, and some suspected ones are harmless. The loco plants, their distribution, characteristics, and effects upon animals eating them, are described in this bulletin. Illustrations of the plants and of poisoned animals accompany the descriptions." -- p. 2
Date: 1919
Creator: Marsh, C. Dwight (Charles Dwight)
Partner: UNT Libraries Government Documents Department

The Loco-Weed Disease

Description: Revised edition. "Loco weeds are poisonous plants that have caused heavy losses of horses, cattle, and sheep in some parts of the West and Southwest. Three plants are known definitely to be locoes, a few others are probably injurious, and some suspected ones are harmless. The loco plants, their distribution, characteristics, and effects upon animals eating them, are described in this bulletin. Illustrations of the plants and of poisoned animals accompany the descriptions." -- p. ii
Date: 1929
Creator: Marsh, C. Dwight (Charles Dwight); Clawson, A. B. & Eggleston, W. W. (Willard Webster), b. 1863
Partner: UNT Libraries Government Documents Department

The Loco-Weed Disease

Description: Report describing the poisonous plant locoweed, including its appearance and its effects on horses, cattle, and sheep.
Date: 1909
Creator: Marsh, C. Dwight (Charles Dwight)
Partner: UNT Libraries Government Documents Department

Larkspur, or "Poison Weed"

Description: Report discussing the distribution of larkspur in the western United States, the varieties of larkspur, and its toxic effects if ingested. Discussion concentrates on the plant's toxicity and danger for cattle, as well as possible remedies.
Date: 1913
Creator: Marsh, C. Dwight (Charles Dwight); Clawson, A. B. & Marsh, Hadleigh, b. 1888
Partner: UNT Libraries Government Documents Department

Microflora Found in a Selected Group of Food Products Enclosed in a Protective Wrapper

Description: The purposes of this study are, first, to determine relative numbers and predominant types of bacterial organisms in the various food products studied; second, to evaluate the efficiency of the paper coverings of these foods; and third, to determine whether these products are potential sources of food poisoning.
Date: 1949
Creator: Ogden, William H.
Partner: UNT Libraries

EXAFS and activity studies of the poisoning effect on Cl on Pt/Al{sub 2}O{sub 3} catalysts during oxidation reactions.

Description: The effect of Cl on the activity of Pt/Al{sub 2}O{sub 3} catalysts for methane oxidation has been studied by H{sub 2} and CO chemisorption, O{sub 2} isotopic exchange, kinetic studies and EXAFS spectroscopy. Catalysts containing 1.5% pt/Al{sub 2}O{sub 3} were prepared by incipient wetness from H{sub 2}PtCl{sub 6} and Pt(NH{sub 3}){sub 4}(NO{sub 3}){sub 2} precursors. Both reduced catalysts have similar dispersion (0.8) as determined by H{sub 2} chemisorption. At low methane concentration (0.3 vol.% CH{sub 4}, 16 vol.% O{sub 2}) the Cl-free catalyst was about 20 times more active during complete methane oxidation than the Cl-containing catalyst. Both CO chemisorption and oxygen exchange were observed on the Cl-free catalyst, whereas they were not detected on the Cl-containing catalyst. On the Cl-free catalyst, only Pt-Pt and Pt-O bonds were detected from the EXAFS results, while on the Cl-containing catalyst additional Pt-Cl bonds were present. The effect of chlorine on activity strongly depended on the reactant concentration. Exposure of the Cl-free catalyst to higher concentrations of methane (3 vol.% CH{sub 4}) reduced the activity to a level similar to that of the Cl-containing catalyst. Addition of HCl to the Cl-free catalyst rendered the activity identical to the catalyst prepared from Cl-containing precursors. A model is proposed to explain the mechanism of chloride poisoning, which appears to be site blocking.
Date: April 5, 2001
Creator: Gracia, F.; Wolf, E. E.; Miller, J. T. & Kropf, A. J.
Partner: UNT Libraries Government Documents Department

Development of Sulfur and Carbon Tolerant Reforming Alloy Catalysts Aided by Fundamental Atomistics Insights

Description: Current hydrocarbon reforming catalysts suffer from rapid carbon and sulfur poisoning. Even though there is a tremendous incentive to develop more efficient catalysts, these materials are currently formulated using inefficient trial and error experimental approaches. We have utilized a novel hybrid experimental/theoretical approach, combining quantum Density Functional Theory (DFT) calculations and various state-of-the-art experimental tools, to formulate carbon tolerant reforming catalysts. We have employed DFT calculations to develop molecular insights into the elementary chemical transformations that lead to carbon poisoning of Ni catalysts. Based on the obtained molecular insights, we have identified, using DFT quantum calculation, Sn/Ni alloy as a potential carbon tolerant reforming catalyst. Sn/Ni alloy was synthesized and tested in steam reforming of methane, propane, and isooctane. We demonstrated that the alloy catalyst is carbon-tolerant under nearly stoichiometric steam-to-carbon ratios. Under these conditions, monometallic Ni is rapidly poisoned by sp2 carbon deposits. The research approach is distinguished by a few characteristics: (a) Knowledge-based, bottom-up approach, compared to the traditional trial and error approach, allows for a more efficient and systematic discovery of improved catalysts. (b) The focus is on exploring alloy materials which have been largely unexplored as potential reforming catalysts.
Date: August 31, 2006
Creator: Linic, Suljo
Partner: UNT Libraries Government Documents Department

Mixing and Evaporation in a Packed Vessel

Description: In connection with an evaluation of the operability of a 36-inch diameter remote evaporator at the Idaho Chemical Processing Plant that was to be packed with a corrosionresistant neutron-poison packing for criticality control, an investigation in a 30-inch diameter vessel proved that air sparging effectively mixes solutions. The data showed that at similar spar;e rates the presence of the packing caused an increase in the time needed for complete mixing. The investigation showed that solutions are readily evaporated in spite of the presence of packing in the tank. (auth)
Date: September 20, 1961
Creator: Cederberg, C. K. & Buckham, J. A.
Partner: UNT Libraries Government Documents Department