Partner
UNT Libraries Government Documents Department
228
Abilene Christian University Library
152
UNT Libraries Special Collections
113
Oklahoma Historical Society
42
UNT Libraries
16
UNT Music Library
11
National Museum of the Pacific War/Admiral Nimitz Foundation
10
Sterling Municipal Library
9
Carl Albert Congressional Research and Studies Center
8
Rice University Woodson Research Center
5
53 More
Collection
Abilene Library Consortium
157
ACU Summit Lecture Series
148
Office of Scientific & Technical Information Technical Reports
115
Texas Digital Newspaper Program
112
Congressional Research Service Reports
81
Oklahoma Digital Newspaper Program
51
Tocker Foundation Grant
50
College of Music Marketing Collection
41
University Photography Collection
36
Photographing UNT
36
101 More
Serial/Series Title
Recovering Spirituality. 84th Annual Bible Lectureship
51
Be My Witnesses. 83rd Annual Bible Lectureship
49
Divisions, Areas, and Ensembles - Opera - Samson in concert
41
The Greensheet
11
Sapulpa Daily Herald
10
The Express-Star
10
The Altus Times
9
The Baytown Sun
9
The Oklahoma Daily
8
The Perry Daily Journal
7
98 More
Degree Department
Degree Discipline
Degree Level
Country
Decade
Month
Day
Language
687 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
687
next
Spatial Analysis of Emissions Sources for HCCI Combustion at Low Loads Using a Multi-Zone Model
We have conducted a detailed numerical analysis of HCCI engine operation at low loads to investigate the sources of HC and CO emissions and the associated combustion inefficiencies. Engine performance and emissions are evaluated as fueling is reduced from typical HCCI conditions, with an equivalence ratio f = 0.26 to very low loads (f = 0.04). Calculations are conducted using a segregated multi-zone methodology and a detailed chemical kinetic mechanism for iso-octane with 859 chemical species. The computational results agree very well with recent experimental results. Pressure traces, heat release rates, burn duration, combustion efficiency and emissions of hydrocarbon, oxygenated hydrocarbon, and carbon monoxide are generally well predicted for the whole range of equivalence ratios. The computational model also shows where the pollutants originate within the combustion chamber, thereby explaining the changes in the HC and CO emissions as a function of equivalence ratio. The results of this paper contribute to the understanding of the high emission behavior of HCCI engines at low equivalence ratios and are important for characterizing this previously little explored, yet important range of operation.
Date:
February 20, 2004
Creator:
Aceves, S. M.; Flowers, D. L.; Espinosa-Loza, F.; Martinez-Frias, J.; Dec, J. E.; Sjoberg, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Public Aid and Faith-Based Organizations (Charitable Choice): Background and Selected Legal Issues
None
Date:
February 20, 2002
Creator:
Ackerman, David M.
Object Type:
Report
System:
The UNT Digital Library
Things Unseen: Three Key Questions for Churches of Christ in the New Millennium - Mission: Can a Modern Church Thrive in a Postmoder World?
Lecture given Wednesday, February 20, 2002, 8:30 AM at Abilene Christian University: "As the modern world recedes, Churches of Christ are finding their distinctive message and theology, which was rooted firmly in that world, less immediately convincing and more obviously deficient in the new cultural era we are entering. But this situation provides an opportunity to reclaim Christian truth that was compromised or even lost under the pressures and temptations of modernity. Three key questions focus this challenge for the church's heritage, life together and present message."
Date:
February 20, 2002
Creator:
Allen, Leonard
Object Type:
Sound
System:
The Portal to Texas History
Lectureship Forum: What Is the Genius of Our Movement?
Lecture given Wednesday, February 20, 2002, 3:15 PM at Abilene Christian University
Date:
February 20, 2002
Creator:
Allen, Leonard; Childers, Jeff; Foster, Doug; Harris, Randy; Reese, Jack & Woodroof, Tim
Object Type:
Sound
System:
The Portal to Texas History
Genesis 2: The Sequel - New Beginnings
Lecture given Wednesday, February 20, 2002, 8:30 AM at Abilene Christian University: "Everyone has heard about the book of Genesis, but how many of you have ever heard about, much less studied, its sequel? Come and join us as we read the thrilling story of God's new beginnings!"
Date:
February 20, 2002
Creator:
Alvarez, Abel
Object Type:
Sound
System:
The Portal to Texas History
The {phi} mean free path in hot hadronic matter
We calculate the {phi} meson collision rate and mean free path in a hot hadronic gas. The Hidden Local Symmetry model is used to take into account interactions of {phi} mesons with pseudoscalar ({pi}, K) and vector mesons ({rho}, {omega}, K*, {phi}). In contrast to previous calculations we find a significantly small mean free path (around 1 fm at T=200MeV). This implies that {phi} mesons produced after hadronization in relativistic heavy ion collisions will not leave the collision region without scattering. The consequences of these findings to the analysis of {phi} yields are discussed.
Date:
February 20, 2002
Creator:
Alvarez-Ruso, Luis & Koch, Volker
Object Type:
Article
System:
The UNT Digital Library
Phi meson propagation in a hot hadronic gas
The Hidden Local Symmetry Lagrangian is used to study the interactions of phi mesons with other pseudoscalar and vector mesons in a hadronic gas at finite temperature. We have found a significantly small phi mean free path (less than 2.4 fm at T > 170 MeV) due to large collision rates with rho mesons, kaons and predominantly K* in spite of their heavy mass. This implies that phi mesons produced after hadronization in relativistic heavy ion collisions will not leave the hadronic system without scattering. The effect of these interactions on the time evolution of the phi density in the expanding hadronic fireball is investigated.
Date:
February 20, 2002
Creator:
Alvarez-Ruso, Luis & Koch, Volker
Object Type:
Article
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 105, No. 291, Ed. 1 Friday, February 20, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 20, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 271, Ed. 1 Sunday, February 20, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 20, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
FY 2007 Miniature Spherical Retroreflectors Final Report
Miniature spherical retroreflectors, less than 8 millimeters in diameter, are currently being developed to enhance remote optical detection of nuclear proliferation activities. These retroreflecting spheres resemble small, sand-colored marbles that have the unique optical property of providing a strong reflection directly back to the source (i.e., retroreflecting) when illuminated with a laser. The addition of specific coatings, sensitive to specific chemicals or radioactive decay in the environment, can be applied to the surface of these retroreflectors to provide remote detection of nuclear proliferation activities. The presence of radioactive decay (e.g., alpha, gamma, neutron) or specific chemicals in the environment (e.g., TBP, acids) will change the optical properties of the spheres in a predictable fashion, thus indicating the presence or absence of the target materials. One possible scenario might employ an airborne infrared laser system (e.g., quantum-cascade lasers) to illuminate a section of ground littered with these retroreflective spheres. Depending on the coating and the presence of a specific chemical or radioisotope in the environment, the return signal would be modified in some predictable fashion because of fluorescence, frequency shifting, intensity attenuation/enhancement, or change in polarization. Research conducted in FY 2007 focused on developing novel optical fabrication processes and exploiting the …
Date:
February 20, 2008
Creator:
Anheier, Norman C.; Bernacki, Bruce E. & Krishnaswami, Kannan
Object Type:
Report
System:
The UNT Digital Library
Preoperational Subsurface Conditions at the Idaho Nuclear Technology and Engineering Center Service Wastewater Discharge Facility
The Idaho Nuclear Technology and Engineering Center (INTEC) Service Wastewater Discharge Facility replaces the existing percolation ponds as a disposal facility for the INTEC Service Waste Stream. A preferred alternative for helping decrease water content in the subsurface near INTEC, closure of the existing ponds is required by the INTEC Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Record of Decision (ROD) for Waste Area Group 3 Operable Unit 3-13 (DOE-ID 1999a). By August 2002, the replacement facility was constructed approximately 2 miles southwest of INTEC, near the Big Lost River channel. Because groundwater beneath the Idaho National Engineering and Environmental Laboratory (INEEL) is protected under Federal and State of Idaho regulations from degradation due to INEEL activities, preoperational data required by U.S. Department of Energy (DOE) Order 5400.1 were collected. These data include preexisting physical, chemical, and biological conditions that could be affected by the discharge; background levels of radioactive and chemical components; pertinent environmental and ecological parameters; and potential pathways for human exposure or environmental impact. This document presents specific data collected in support of DOE Order 5400.1, including: four quarters of groundwater sampling and analysis of chemical and radiological parameters; general facility description; site specific geology, stratigraphy, …
Date:
February 20, 2002
Creator:
Ansley, Shannon L.
Object Type:
Report
System:
The UNT Digital Library
Embodied Spirituality: Discovering a Balance of Nature and Grace - A Look at the New Humanity
Lecture given Wednesday, February 20, 2002, 9:45 AM at Abilene Christian University: "What does it mean to be created in the image of God? IN what ways are we called to fulfill this goal? Is it completely a divine reality, merely a human reality, or a cooperative effort with God? The incarnation furnishes powerful answers to these questions and provides a balanced approach to spirituality."
Date:
February 20, 2002
Creator:
Aquino, Frederick
Object Type:
Sound
System:
The Portal to Texas History
That You Might Believe - Truth in the Gospel of John
Lecture given Monday, February 20, 2006, 9:45 AM at Abilene Christian University: "In many ways, the themes of John's gospel are unique and compelling. Three theologians read the Gospel of John to see what it has to say about truth, trinity and salvation."
Date:
February 20, 2006
Creator:
Aquino, Frederick; Carter, Kelly & Hamilton, Rex
Object Type:
Sound
System:
The Portal to Texas History
Lux Et Tenebrae - Light and Darkness in Sacred Music
Lecture given Monday, February 20, 2006, 2:00 PM at Abilene Christian University: "Music has long held a mysterious ability to sound shadowy or brilliant, but what are the theological implications of this ability as it relates to sacred music? A panel of theology and music faculty from ACU will discuss this issue by using specific examples of works to be performed by the ACU A Cappella Chorus concert later this evening."
Date:
February 20, 2006
Creator:
Aquino, Frederick; Scarbrough, Michael & Straughn, Greg
Object Type:
Sound
System:
The Portal to Texas History
Restoring 1st Century Christianity in the 1st Century - Part 1
Lecture given Tuesday, February 20, 2001, 8:30 AM at Abilene Christian University: "Luke's call back to the basics of the church in his era offers some interesting challenges for the church in our era."
Date:
February 20, 2001
Creator:
Ash, Tony
Object Type:
Sound
System:
The Portal to Texas History
Restoring 1st Century Christianity in the 1st Century - Part 2
Lecture given Tuesday, February 20, 2001, 9:45 AM at Abilene Christian University: "Luke's call back to the basics of the church in his era offers some interesting challenges for the church in our era."
Date:
February 20, 2001
Creator:
Ash, Tony
Object Type:
Sound
System:
The Portal to Texas History
Restoring 1st Century Christianity in the 1st Century - Part 3
Lecture given Tuesday, February 20, 2001, 3:30 PM at Abilene Christian University: "Luke's call back to the basics of the church in his era offers some interesting challenges for the church in our era."
Date:
February 20, 2001
Creator:
Ash, Tony
Object Type:
Sound
System:
The Portal to Texas History
Pray Always in the Spirit - Ephesians 6:10-20
Lecture given Wednesday, February 20, 2002, 7:00 PM at Abilene Christian University
Date:
February 20, 2002
Creator:
Atchley, Rick
Object Type:
Sound
System:
The Portal to Texas History
Together Again - Restoring Unity in Christ After a Century of Separation
Lecture given Monday, February 20, 2006, 9:45 AM at Abilene Christian University: "Our heritage was once known as a unity movement of people who wanted to be Christians only. Somewhere along the way that goal was lost. Can it be recaptured? Two preachers from different streams or our movement think it can, and think the time to say and do so is now."
Date:
February 20, 2006
Creator:
Atchley, Rick & Russell, Bob
Object Type:
Sound
System:
The Portal to Texas History
Restoration Unity Forum - The Biblical Mandate for Unity - How Can We Live It Out?
Lecture given Monday, February 20, 2006, 3:15 PM at Abilene Christian University: "No one would deny the importance placed in Scripture on the unity of Christ's followers. Yet the reality of division is stark. How can churches concerned with fulfilling Christ's prayer for unity actually live within it? A panel of leaders will pursue this important question."
Date:
February 20, 2006
Creator:
Atchley, Rick; Barrett, Bryan; Burton, Sue; DeWelt, Chris; Garrett, Leroy; Knowles, Victor et al.
Object Type:
Sound
System:
The Portal to Texas History
Fabrication of large diameter alumino-silicate K{sup +} sources
Alumino-silicate K{sup +} sources have been used in HIF experiments for many years. For example the Neutralized Transport Expt. (NTX) and the High Current Transport Expt. (HCX) are now using this type of ion source with diameters of 2.54 cm and 10 cm respectively. These sources have demonstrated ion currents of 80 mA and 700 mA, for typical HIF pulse lengths of 5-10 {micro}s. The corresponding current density is {approx} 10-15 mA/cm{sup 2}, but much higher current density has been observed using smaller size sources. Recently we have improved our fabrication techniques and, therefore, are able to reliably produce large diameter ion sources with high quality emitter surface without defects. This note provides a detailed description of the procedures employed in the fabrication process. The variables in the processing steps affecting surface quality, such as substrate porosity, powder size distribution, coating technique on large area concave surfaces, drying, and heat firing temperature have been investigated.
Date:
February 20, 2003
Creator:
Baca, D.; Chacon-Golcher, E.; Kwan, J. W. & Wu, J. K.
Object Type:
Article
System:
The UNT Digital Library
The Strategic Petroleum Reserve: History, Perspectives and Issues
This reports discusses the history and establishment of Strategic Petroleum Reserve (SPR), acquisition of crude oil for the SPR. It talks about the debate over the years regarding when should the SPR be used.
Date:
February 20, 2009
Creator:
Bamberger, Robert
Object Type:
Report
System:
The UNT Digital Library
Imagine a Marriage… - The Marriage That Walks on Water (Matthew 14:29)
Lecture given Monday, February 20, 2006, 9:45 AM at Abilene Christian University: "What if we could use some of the pictures of the ministry of Jesus to shape how we view our marriages? Beyond rules and roles, this class hopes that we can see our marriages in the stories of Jesus."
Date:
February 20, 2006
Creator:
Barcenas, Ignacio
Object Type:
Sound
System:
The Portal to Texas History
The Christian's Green Thumb: The Essentials of Spiritual Growth - The Nutrition for Spiritual Growth
Lecture given Wednesday, February 20, 2002, 8:30 AM at Abilene Christian University: "Agriculturists and horticulturists often boast of their mystical green thumb, which helps them produce bountiful harvests of fruits, vegetables and flowers. These sessions will explore ways that the Christian can develop a "green thumb" as he or she seeks to fulfill that all-important mandate to grow spiritually."
Date:
February 20, 2002
Creator:
Barclay, Richard
Object Type:
Sound
System:
The Portal to Texas History