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314 Matching Results
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Enhanced durability and reactivity for zinc ferrite desulfurization sorbent
AMAX Research Development Center (AMAX R D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-scale, fixed-bed reactor. Durability may be defined as the ability of the sorbent to maintain important physical characteristics such As size, strength, and specific surface area during 10 cycles of sulfidation and oxidation.
Date:
May 18, 1987
Creator:
Jha, M. C.; Baltich, L. K. & Berggren, M. H.
Object Type:
Report
System:
The UNT Digital Library
Hybrid Simulations With Dynamical Quarks: Spectra, Screening and Thermodynamics
We summarize simulations made by the Argonne/University of Illinois group using the Hybrid algorithm to include dynamical staggered fermions. Recent work on the mass spectrum and screening effects due to the inclusion of four light flavors of dynamical quarks is presented. We also present a brief overview of what we have learned about the finite temperature chiral phase transition. 5 refs., 4 figs., 1 tab.
Date:
November 18, 1987
Creator:
Sinclair, D. K.
Object Type:
Article
System:
The UNT Digital Library
[Letter from Gibson Lewis to Alfred Hurley, May 18, 1987]
Letter from Gibson Lewis to Alfred Hurley, on May 18, 1987, telling him that the bill creating the TAMS program has passed the House floor, and expressing his excitement in working on the project.
Date:
May 18, 1987
Creator:
Lewis, Gibson D.
Object Type:
Letter
System:
The UNT Digital Library
[Memorandum from Richard L. Simms to Jim Muro, June 18, 1987]
Memorandum from Richard L. Simms to Jim Muro, on June 18, 1987, concerning staffing needs for the Texas Academy of Mathematics and Science during the planning year.
Date:
June 18, 1987
Creator:
Simms, Richard L.
Object Type:
Letter
System:
The UNT Digital Library
[Memorandum from Jim Muro to Alfred Hurley, June 18, 1987]
Memorandum from Jim Muro to Alfred Hurley, on June 18, 1987, laying out ideas on how to fund the Texas Academy of Mathematics and Science. Muro also mentions that they need to begin recruiting students within the next two months.
Date:
June 18, 1987
Creator:
Muro, James J.
Object Type:
Letter
System:
The UNT Digital Library
[Letter from James R. Miller to Kenneth Ashworth, February 18, 1987]
Letter from James R. Miller to Kenneth Ashworth, on February 18, 1987, sending him a copy of the Academy proposal.
Date:
February 18, 1987
Creator:
Miller, James R.
Object Type:
Letter
System:
The UNT Digital Library
Analytical and numerical analysis of finite amplitude Rayleigh-Taylor instability
We summarize the results obtained in the last year. These include a simple model of bubble competition in Rayleigh-Taylor unstable flows which gives results which are in good agreement with experiment. In addition the model has been compared with two dimensional numerical simulations of inviscid Rayleigh-Taylor instability using the cloud-in-cell method. These simulations can now be run into the late time regime and can track the competition of as many as ten bubbles. The improvement in performance over previous applications of the cloud-in-cell approach is due to the application of finite difference techniques designed to handle shock-like structures in the vorticity of the interface which occur at late times. We propose to extend the research carried thus far to Rayleigh-Taylor problems in three dimensional and convergent geometries as well as to two-fluid instabilities in which interface roll-up is observed. Finally we present a budget for the fiscal year 1987-1988. 6 refs.
Date:
September 18, 1987
Creator:
Meiron, D.I. & Saffman, P.G.
Object Type:
Report
System:
The UNT Digital Library
Model based controls and the AGS booster controls system architecture
The Heavy Ion Transfer Line used to inject heavy ions created at the Tandem Van de Graaff into the Alternating Gradient Synchrotron (AGS) is briefly discussed, particularly as regards its control system. (LEW)
Date:
August 18, 1987
Creator:
Casella, R.A.
Object Type:
Article
System:
The UNT Digital Library
[Clipping: NT develops academy that is one of a kind]
Article discussing the start of the Texas Academy of Mathematics and Science in fall 1988 including some background information on the program and plans for the next three years.
Date:
September 18, 1987
Creator:
Myers, Shyloa
Object Type:
Clipping
System:
The UNT Digital Library
The Canadian Record (Canadian, Tex.), Vol. 97, No. 25, Ed. 1 Thursday, June 18, 1987
Weekly newspaper from Canadian, Texas that includes local, state and national news along with extensive advertising.
Date:
June 18, 1987
Creator:
Ezzell, Ben & Ezzell, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
The Tulia Herald (Tulia, Tex.), Vol. 79, No. 25, Ed. 1 Thursday, June 18, 1987
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
June 18, 1987
Creator:
Tooley, Wendell
Object Type:
Newspaper
System:
The Portal to Texas History
The Bogata News (Bogata, Tex.), Vol. 76, No. 38, Ed. 1 Thursday, June 18, 1987
Weekly newspaper from Bogata, Texas that includes local, state, and national news along with advertising.
Date:
June 18, 1987
Creator:
Nichols, Nanalee & Nichols, Thomas
Object Type:
Newspaper
System:
The Portal to Texas History
Detecting the Heavy Higgs Boson at the SSC
Detection of a heavy Higgs boson (2M/sub z/ < M/sub H/ < 1 TeV) is considered. The production mechanisms and backgrounds are discussed. Their implementation in the PYTHIA and ISAJET Monte Carlo programs are checked. The decay modes H ..-->.. ZZ ..-->.. llll and H ..-->.. ZZ ..-->.. llvv are discussed in detail. The signal/background is evaluated and some relevant detector parameters are specified. Some remarks are also made concerning the requirements imposed on detectors by the decay mode H ..-->.. WW ..-->.. lv + jets. Experimental signatures for models in which there is no Higgs boson of mass less than 1 TeV are outlined. 44 refs.
Date:
December 18, 1987
Creator:
Cahn, R. N.; Chanowitz, M.; Golden, M.; Herrero, M. J.; Hinchliffe, I.; Wang, E. M. et al.
Object Type:
Article
System:
The UNT Digital Library
Drumright Area News Journal (Drumright, Okla.), Vol. 68, No. 9, Ed. 1 Wednesday, February 18, 1987
Weekly newspaper from Drumright, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 18, 1987
Creator:
Tucker, Nancy
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Multidimensional modeling of convective heat transfer with application to IC (internal combustion) engines
The objective of this project is to develop a more comprehensive understanding of the convective heat transfer process in complex, unsteady turbulent reacting flows, typical of those which occur in internal combustion engines. The specific area of research will be the representation of heat transfer in detailed multi-dimensional Navier-Stokes models, and modeling of turbulent transport mechanisms. The detailed tasks will include a review of relevant prior work. Based on this review, and original work done under this contract, several modeling approaches will be formulated and further studied and tested. The tests will be carried out on flow cases which have relevance to engine flows, and for which reliable experimental data exist. Such data will be sought and identified. The analytical studies will lead to the determination of the best modeling approaches to be used for heat transfer simulation in internal combustion engines. Following that, a detailed study will be carried out of spatial and temporal heat flux distribution in a representative engine. This will be complemented by a parametric study of engine heat transfer dependence on intake flow details, combustion chamber geometry, engine speed and engine load.
Date:
June 18, 1987
Creator:
Jennings, M.J. & Morel, T.
Object Type:
Report
System:
The UNT Digital Library
Shock wave effects and metallurgical parameters
This review summarizes results from some principal investigations of shock-strain effects in metals. The strain contribution indeed plays a role in residual microstructures, particularly, if the strain becomes dominant as in ''under trapped'' experiments of low or moderate pressure or for that matter, of ''well trapped'' high pressure experiments. Not only does this strain contribution affect the microstructure by increasing deformation, a concommitant strain heat is generated and absorbed by the shocked material. This strain heat, if large enough (relative to the homologous temperature of the material), can and does have an annealing effect on the residual microstructure. This strain heat is over and above the values typically calculated for materials implying little or no strain. Although the accumulative effects of associated strain are not completely definite, the collective picture presented is one in which shock-induced strains, when large enough, have a significant effect on the residual microstructure. 43 refs., 20 figs.
Date:
May 18, 1987
Creator:
Staudhammer, K.P.
Object Type:
Article
System:
The UNT Digital Library
The Cherokeean. (Rusk, Tex.), Vol. 139, No. 19, Ed. 1 Thursday, June 18, 1987
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
June 18, 1987
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
[Agenda for the San Antonio Chapter of the Links, Inc. Meeting - November 18, 1987]
Agenda for the November 11, 1987 meeting of the San Antonio chapter of The Links, Inc. Items for discussion include the chapter's correspondence, treasury reports, committee committee activities, and current business.
Date:
November 18, 1987
Creator:
Links, Inc. San Antonio Chapter.
Object Type:
Text
System:
The Portal to Texas History
[Minutes for the San Antonio Chapter of the Links, Inc. Meeting - November 18, 1987, Part 1]
Minutes from the November 18, 1987 meeting of the San Antonio chapter of The Links, Inc. These minutes are the first of two parts recorded from this meeting and they discuss the chapter's correspondence.
Date:
November 18, 1987
Creator:
Links, Inc. San Antonio Chapter.
Object Type:
Text
System:
The Portal to Texas History
[Minutes for the San Antonio Chapter of the Links, Inc. Meeting - November 18, 1987, Part 2]
Handwritten minutes from the November 18, 1987 meeting of the San Antonio chapter of The Links, Inc. These minutes are the second of two parts recorded from this meeting and they discuss the chapter's correspondence, budget, committee activities, scholarship program, constitution and bylaws, and other business.
Date:
November 18, 1987
Creator:
Links, Inc. San Antonio Chapter.
Object Type:
Text
System:
The Portal to Texas History
Texas Register, Volume 12, Number 62, Pages 2701-2738, August 18, 1987
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
August 18, 1987
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Register, Volume 12, Number 70, Pages 3237-3293, September 18, 1987
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
September 18, 1987
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Register, Volume 12, Number 94, Pages 4713-4799, December 18, 1987
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
December 18, 1987
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Attorney General Opinion: JM-632
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Disposition of interest earned on "hot check" fund administered by a criminal district attorney
Date:
February 18, 1987
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History