Photoinitiated electron transfer in multichromophoric species: Synthetic tetrads and pentads (open access)

Photoinitiated electron transfer in multichromophoric species: Synthetic tetrads and pentads

This research project involves the design, synthesis and study of molecules which mimic many of the important aspects of photosynthetic electron and energy transfer. The knowledge gained from the study of synthetic model systems which abstract features of the natural photosynthetic apparatus can be used to design artificial photosynthetic systems which employ the basic physics and chemistry of photosynthesis to help meet mankind's energy needs. More specifically, the proposed models are designed to mimic the following aspects of natural photosynthetic multistep electron transfer: electron donation from a tetrapyrrole excited singlet state, electron transfer between tetrapyrroles, electron transfer from tetrapyrroles to quinones, and electron transfer between quinones with different redox properties.
Date: April 12, 1988
Creator: Gust, J.D. Jr. & Moore, T.A.
Object Type: Report
System: The UNT Digital Library
No pain-no gain: The complex art of soft x-ray laser target design and analysis (open access)

No pain-no gain: The complex art of soft x-ray laser target design and analysis

We review our methodologies in the design and analysis of soft x-ray laser experiments. We convolve large-scale 2-D hydro code output with detailed atomic data bases in a kinetics code with 1-D or 2-D line transfer. The time and space dependent level population data is then post processed further with a beam transport code, including refraction, to predict actual experimental results. While mysteries do remain, we present many examples that show how this complex modeling procedure is crucial in explaining experimental results. 23 refs., 8 figs., 1 tab.
Date: January 12, 1988
Creator: Rosen, M. D.; London, R. A.; Hagelstein, P. L.; Maxon, M. S.; Eder, D. C.; Whitten, B. L. et al.
Object Type: Article
System: The UNT Digital Library
Recent advances in atomic modeling (open access)

Recent advances in atomic modeling

Precision spectroscopy of solar plasmas has historically been the goad for advances in calculating the atomic physics and dynamics of highly ionized atoms. Recent efforts to understand the laboratory plasmas associated with magnetic and inertial confinement fusion, and with X-ray laser research, have played a similar role. Developments spurred by laboratory plasma research are applicable to the modeling of high-resolution spectra from both solar and cosmic X-ray sources, such as the photoionized plasmas associated with accretion disks. Three of these developments in large scale atomic modeling are reviewed: a new method for calculating large arrays of collisional excitation rates, a sum rule based method for extending collisional-radiative models and modeling the effects of autoionizing resonances, and a detailed level accounting calculation of resonant excitation rates in FeXVII. 21 refs., 5 figs., 2 tabs.
Date: October 12, 1988
Creator: Goldstein, W.H.
Object Type: Article
System: The UNT Digital Library
Photoinitiated electron transfer in multichromophoric species: Synthetic tetrads and pentads. Technical progress report (open access)

Photoinitiated electron transfer in multichromophoric species: Synthetic tetrads and pentads. Technical progress report

This research project involves the design, synthesis and study of molecules which mimic many of the important aspects of photosynthetic electron and energy transfer. The knowledge gained from the study of synthetic model systems which abstract features of the natural photosynthetic apparatus can be used to design artificial photosynthetic systems which employ the basic physics and chemistry of photosynthesis to help meet mankind`s energy needs. More specifically, the proposed models are designed to mimic the following aspects of natural photosynthetic multistep electron transfer: electron donation from a tetrapyrrole excited singlet state, electron transfer between tetrapyrroles, electron transfer from tetrapyrroles to quinones, and electron transfer between quinones with different redox properties.
Date: April 12, 1988
Creator: Gust, J. D. Jr. & Moore, T. A.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: LO88-104 (open access)

Texas Attorney General Opinion: LO88-104

Letter opinion 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.
Date: September 12, 1988
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: LO88-116 (open access)

Texas Attorney General Opinion: LO88-116

Letter opinion 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; Does Attorney General Opinion JM-893 (1988) forbid the city from changing the amount of the Seniors and Disabled Exemptions if the city is willing to unwind the process following for setting the tax rate and begin again, starting with reciept of a new certified property roll?
Date: October 12, 1988
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: LO88-40 (open access)

Texas Attorney General Opinion: LO88-40

Letter opinion 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.
Date: April 12, 1988
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-992 (open access)

Texas Attorney General Opinion: JM-992

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; Constitutionality of an amendment to article 4551f, V.T.C.S., which requires dental laboratories doing business in Texas to Register with the Board of Dental Examiners (RQ-1571)
Date: December 12, 1988
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-891 (open access)

Texas Attorney General Opinion: JM-891

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: Whether an emergency communication district is authorized under article 1432e, V.T.C.S., to supply emergency communications service under contract with other jurisdictions (RQ-1338)
Date: April 12, 1988
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-901 (open access)

Texas Attorney General Opinion: JM-901

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; Whether the Harris County Bail Bond Board is authorized to regulate licensed attorneys who execute bail bonds for criminal defendants (RQ-1385)
Date: May 12, 1988
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-842 (open access)

Texas Attorney General Opinion: JM-842

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; Retroactivity of the 1985 amendment to article 6812h, V.T.C.S., relating to the acquisition of a public interest interest in private roads in certain counties
Date: January 12, 1988
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Load on Trough Bellows Following an Argon Spill (open access)

Load on Trough Bellows Following an Argon Spill

In the case of a gross argon spill from the DO detector, the liquid argon is caught in three plenums. These plenums are to be connected by bellows to make a horizontal trough open at one end for removing the argon. The design of these bellows is dependent on the maximum argon load they must carry. Bellows to connect the three argon-catching plenums in the DO detector must be able to carry at least 92 lbs of argon when closed and 231 lbs when open, plus the load due to argon in the convolutions. Examples of such loads and the method for their calculations are contained in the Discussion. It should be noted that a set of assumptions was used in these calculations. First, we considered a uniform channel and uniform flow. Second, we used a value for Manning's n meant for a similar, but not exactly the same, case. Finally, we were forced to define an average depth, d, to be used to state the hydraulic radius, R, and area of flow, A. These facts may warrant consideration in future calculations.
Date: July 12, 1988
Creator: Chess, K.
Object Type: Report
System: The UNT Digital Library
Premartensitic microstructures as seen in the high-resolution electron microscope: A study of a Ni-Al alloy (open access)

Premartensitic microstructures as seen in the high-resolution electron microscope: A study of a Ni-Al alloy

The present study indicates that the B2 ..beta..-phase in quenched Ni/sub 62.5/Al/sub 37.5/ is distorted by displacement waves involving a planar shufflin of atoms resembling the final 7R martensite structure and with wavelenghts of the order of 1.3 nm. The appearance of a <110><110> type modulation with the indicated periodicity corresponds well with recent inelastic neutron scattering results which reveal nonlinear behavior in the TA<110> phonon dispersion curve around the same wavelengths indicating a partial lattice softening for such waves. In bulk material all six equivalent wave-vectors are equally present. These distortional modulations are configured in some form of three-dimensional assembly. Following the interpretation given above, it can be concluded that a one-dimensional domain structure along one of six <110> directions may exist. However, the beating of six displacement waves with apparently uncorrelated phase and wavelengths rules out the existence of a ''conventional'' three-dimensional domain structure. For this reason it is uncertain whether much more information can be gained from such image simulations. There are now numerous indications that the underlying structure to the tweed contrast in this alloy is a precursor effect of the martensitic transformation. However, a detailed description of the effective correlation between the distorted parent phase …
Date: February 12, 1988
Creator: Schryvers, D.; Tanner, L. & Van Tendeloo, G.
Object Type: Article
System: The UNT Digital Library
Overview of sigma, /rho/ and dsigma/dt in high energy proton-antiproton scattering (open access)

Overview of sigma, /rho/ and dsigma/dt in high energy proton-antiproton scattering

Recent results on the total cross section, real-to-imaginary ratio of the forward scattering amplitude, and the slope parameter are discussed. The ability of future Tevatron data to distinguish between alternative explanations of the large value of /rho/ measured by UA-4 is emphasized. 8 refs., 1 tab.
Date: July 12, 1988
Creator: Cahn, R.N.
Object Type: Article
System: The UNT Digital Library
Texas Register, Volume 13, Number 4, Pages 209-263, January 12, 1988 (open access)

Texas Register, Volume 13, Number 4, Pages 209-263, January 12, 1988

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: January 12, 1988
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 13, Number 12, Pages 749-816, February 12, 1988 (open access)

Texas Register, Volume 13, Number 12, Pages 749-816, February 12, 1988

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: February 12, 1988
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 13, Number 54, Pages 3435-3482, July 12, 1988 (open access)

Texas Register, Volume 13, Number 54, Pages 3435-3482, July 12, 1988

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: July 12, 1988
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 13, Number 29, Pages 1693-1723, April 12, 1988 (open access)

Texas Register, Volume 13, Number 29, Pages 1693-1723, April 12, 1988

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: April 12, 1988
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 13, Number 62, Pages 3893-4009, August 12, 1988 (open access)

Texas Register, Volume 13, Number 62, Pages 3893-4009, August 12, 1988

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 12, 1988
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Longitudinal Motion Near Unstable Fixed Point (open access)

Longitudinal Motion Near Unstable Fixed Point

None
Date: September 12, 1988
Creator: Wei, J. & Lee, S. Y.
Object Type: Report
System: The UNT Digital Library
Mini-ß Insertion For The RHIC Lattice (open access)

Mini-ß Insertion For The RHIC Lattice

None
Date: February 12, 1988
Creator: Y., Lee S.
Object Type: Report
System: The UNT Digital Library
Correction to AD/RHIC-47, Beam Transfer From AGS to RHIC (open access)

Correction to AD/RHIC-47, Beam Transfer From AGS to RHIC

None
Date: December 12, 1988
Creator: Claus, J. & Foelsche, H.
Object Type: Report
System: The UNT Digital Library
Report on the Carpenter Ridge District, Dolores Plateau Area, Colorado: [Figures and Calculations] (open access)

Report on the Carpenter Ridge District, Dolores Plateau Area, Colorado: [Figures and Calculations]

Index maps, detail figures, columnar sections, and calculation tables for the Carpenter Ridge District.
Date: April 12, 1988
Creator: Miller, Gardner B.
Object Type: Report
System: The UNT Digital Library
Report on West Paradox District, Dolores Plateau Area, Colorado-Utah: [Figures and Columns] (open access)

Report on West Paradox District, Dolores Plateau Area, Colorado-Utah: [Figures and Columns]

Figures and columns for the West Paradox District.
Date: April 12, 1988
Creator: Livingston, Clifton W.
Object Type: Report
System: The UNT Digital Library