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Articles 61 - 90 of 20017
Full-Text Articles in Entire DC Network
Laser-Induced Photon-Branched Chain Reaction In A Chemically-Active Gas-Dispersed Medium, Thomas George, Renat Letfullin, Galen Duree
Laser-Induced Photon-Branched Chain Reaction In A Chemically-Active Gas-Dispersed Medium, Thomas George, Renat Letfullin, Galen Duree
Chemistry & Biochemistry Faculty Works
A promising avenue in the development of high-energy pulsed chemical HF/DF lasers and amplifiers is the utilization of a photon-branched chain reaction initiated in a two-phase active medium, that is, a medium containing a laser working gas and ultradispersed passivated metal particles. These particles are evaporated under the action of IR laser radiation which results in the appearance of free atoms, their diffusion into the gas, and the development of a photon-branching chain process, which involves photons as both reactants and products. The key obstacle here is the formation of a relatively large volume (in excess of 10^3 cm^3) of …
A Front End Switched Rectifier Dc Source For Neutral Point Balancing Of A Npc Three-Level Inverter For The Full Modulation Range, K. Siva Kumar, Sukumar De, K. Gopakumar, Gopal Mondal, Keith Corzine
A Front End Switched Rectifier Dc Source For Neutral Point Balancing Of A Npc Three-Level Inverter For The Full Modulation Range, K. Siva Kumar, Sukumar De, K. Gopakumar, Gopal Mondal, Keith Corzine
Electrical and Computer Engineering Faculty Research & Creative Works
A switched DC voltage three level NPC is proposed in this paper to eliminate capacitor balancing problems in conventional three-level Neutral Point Clamped (NPC) inverter. the proposed configuration requires only one DC link with a voltage Vdc/2, where Vdc is the DC link voltage in a conventional NPC inverter. to get rated DC link voltage (Vdc), the voltage source is alternately connected in parallel to one of the two series capacitors using two switches and two diodes with device voltage rating of Vdc/2. the frequency at which the voltage source is switched is independent and will not affect the operation …
Deafdigest: Gold Edition, December 28, 2008, Barry Strassler
Deafdigest: Gold Edition, December 28, 2008, Barry Strassler
DeafDigest Gold 2008
No abstract provided.
Deafdigest: Blue Edition, December 28, 2008, Barry Strassler
Deafdigest: Blue Edition, December 28, 2008, Barry Strassler
DeafDigest Blue 2008
No abstract provided.
Photopolymerization-Induced Crystallization And Phase Separation In Poly(Ethylene Oxide)/Triacrylate Blends, Soo Jeoung Park, Thein Kyu
Photopolymerization-Induced Crystallization And Phase Separation In Poly(Ethylene Oxide)/Triacrylate Blends, Soo Jeoung Park, Thein Kyu
College of Polymer Science and Polymer Engineering
The present article describes experimental and theoretical investigations of miscibility and crystallization behavior of blends of poly(ethylene oxide) (PEO) and triacrylate monomer (TA) using differential scanning calorimetry and optical microscopy. The PEO/TA blends manifested a single T(g) varying systematically with composition suggestive of a miscible character in their amorphous states. Moreover, there occurs melting point depression of PEO crystals with increasing TA. A phase diagram was subsequently established that exhibited a solid+liquid coexistence region bound by the liquidus and solidus lines, followed by an upper critical solution temperature (UCST) at a lower temperature. The emerging phase morphology was investigated to …
Final Report: Task 22 — Extreme Ground Motion Studies, John G. Anderson, James N. Brune, Jaak J.K. Daemen, Matthew Purvance
Final Report: Task 22 — Extreme Ground Motion Studies, John G. Anderson, James N. Brune, Jaak J.K. Daemen, Matthew Purvance
Publications (YM)
TASK 22 consisted of two separate investigations into extreme ground motions due to seismic events, Subtask 1 and Subtask 2. Subtask 1 included field studies of geological formations that should put an upper bound on extreme ground motions that have happened at the site of the formations. The locations are critically selected to provide the most effective constraints possible on the validity of the probabilistic seismic hazard analysis for Yucca Mountain. Subtask 2 surveyed recorded ground motions from around the world, with the aim to draw general conclusions from these as to the conditions where extreme ground motions are observed. …
Florida Sentinel Bulletin, December 26, 2008, Gwen Hayes
Florida Sentinel Bulletin, December 26, 2008, Gwen Hayes
Florida Sentinel Bulletin Collection
The December 26, 2008, issue of the Florida Sentinel Bulletin.
Cyber Civil Rights, Danielle Keats Citron
Cyber Civil Rights, Danielle Keats Citron
Faculty Scholarship
Social networking sites and blogs have increasingly become breeding grounds for anonymous online groups that attack women, people of color, and members of other traditionally disadvantaged groups. These destructive groups target individuals with defamation, threats of violence, and technology-based attacks that silence victims and concomitantly destroy their privacy. Victims go offline or assume pseudonyms to prevent future attacks, impoverishing online dialogue and depriving victims of the social and economic opportunities associated with a vibrant online presence. Attackers manipulate search engines to reproduce their lies and threats for employers and clients to see, creating digital “scarlet letters” that ruin reputations. Today’s …
Vol.36 N.28 December 25th 2008, Brown Publishing Company
Vol.36 N.28 December 25th 2008, Brown Publishing Company
Black Voice News
No abstract provided.
December 24th 2008, Hispanic News
Um Releases New Theory Of Bird Evolution, University Of Montana--Missoula. Office Of University Relations
Um Releases New Theory Of Bird Evolution, University Of Montana--Missoula. Office Of University Relations
University of Montana News Releases, 1928, 1956-present
No abstract provided.
The Murray Ledger And Times, December 24, 2008, The Murray Ledger And Times
The Murray Ledger And Times, December 24, 2008, The Murray Ledger And Times
The Murray Ledger & Times
No abstract provided.
Energy-Efficient Peer-To-Peer Caching And Mobility Management In 4g Hybrid Networks, Mehdi Azami, Bharat Bhargava
Energy-Efficient Peer-To-Peer Caching And Mobility Management In 4g Hybrid Networks, Mehdi Azami, Bharat Bhargava
Department of Computer Science Technical Reports
No abstract provided.
Applying Marine Protected Area Design Models In Large Estuarine Systems, Roman Zajac, Amanda E. Neely
Applying Marine Protected Area Design Models In Large Estuarine Systems, Roman Zajac, Amanda E. Neely
Biology and Environmental Science Faculty Publications
Several types of design models are currently being used to develop marine protected areas (MPAs) for conservation of coastal and pelagic ecosystems. However, few studies have applied these models in large estuaries which have unique characteristics that need to be considered in MPA design, including strong physical, chemical and biological gradients and significant human impacts. We explored how one design model, MARXAN, can be applied to estuarine systems by developing MPA design scenarios for Long Island Sound, an estuary in the northeastern USA. Using sedimentary texture as a proxy for habitats, we modeled and tested several scenarios where conservation goals …
Virtual Environments Innovation And R&D Activities: Management Challenges, N. Ale Ebrahim, S. Ahmed, Z. Taha
Virtual Environments Innovation And R&D Activities: Management Challenges, N. Ale Ebrahim, S. Ahmed, Z. Taha
Research Publications (2006 to 2010)
Companies will not survive long unless they join a threefold revolution in management itself, innovation, and information technology. Innovation plays a central role in economic development, at regional and national level. In the competitive environment companies are obliged to produce more rapidly, more effectively and more efficiently in new product development which is a result of research and development (R&D) activities. It is necessary for them to put together different capabilities and services with the goal, through cooperation between suppliers and customers, service providers and scientific institutions to achieve innovations of high quality. Depending on the type of industry, the …
Maskless Photolithography For Using Photoreactive Agents, David P. Fries
Maskless Photolithography For Using Photoreactive Agents, David P. Fries
USF Patents
The present invention relates to maskless photolithography using a patterned light generator for creating 2-D and 3-D patterns on objects using photoreactive chemicals. In an embodiment, the patterned light generator uses a micromirror array to direct pattern light on a target object. In an alternate embodiment, the patterned light generator uses a plasma display device to generate and direct patterned light onto a target object. Specifically, the invention provides a maskless photolithography system and method for creating molecular imprinted array devices, integrated microsensors and fluidic networks on a substrate, integrated circuits of conducting polymers, and patterns on substrates using photochemical …
Microfluidic Device Utilizing Magnetohydrodynamics And Method For Fabrication Thereof, Eyitayo S. O. Fakunle, Prabhu U. Arumugam, Ingrid Fritsch, Jeffrey Elbert Mincy, Fred D. Barlow Iii, Gangqiang Wang
Microfluidic Device Utilizing Magnetohydrodynamics And Method For Fabrication Thereof, Eyitayo S. O. Fakunle, Prabhu U. Arumugam, Ingrid Fritsch, Jeffrey Elbert Mincy, Fred D. Barlow Iii, Gangqiang Wang
Patents Granted
Microfluidic channels utilizing magnetohydrodynamics are used to pump very small volumes of solution. The channels have electrodes along the walls and a current carrying species within a solution carries current through the solution. The combination of the electric and magnetic fields causes the solution to flow through the channel.
Shanghai Gm Relatively Immune From Gm Financial Woes, But Not From China's Economic Slowdown, United States: Department Of State: Consulate General Shanghai
Shanghai Gm Relatively Immune From Gm Financial Woes, But Not From China's Economic Slowdown, United States: Department Of State: Consulate General Shanghai
Documents
No abstract provided.
Dynamic Optical Model Of The Primate Crystalline Lens And Implications For The Restoration Of Accommodation, David Borja
Dynamic Optical Model Of The Primate Crystalline Lens And Implications For The Restoration Of Accommodation, David Borja
Open Access Dissertations
The human crystalline lens is a complex, inhomogeneous and dynamic optical element which enables the eye to adjust focus in a process known as accommodation. Age related changes in the optical and mechanical properties of the lens cause a loss in accommodative ability leading to a condition known as presbyopia. Several experimental surgical techniques are under development for the correction of presbyopia. The goal of this dissertation is to better understand the relationship between the crystalline lens shape, its non-uniform refractive index gradient and its optical power and their changes with age and accommodation. In this study direct lens power …
Superconducting Iridium Thin Films Astransition Edge Sensors, Daniela F. Bogorin
Superconducting Iridium Thin Films Astransition Edge Sensors, Daniela F. Bogorin
Open Access Dissertations
Transition edge sensors are the detectors of choice for a wide range of applications; from dark matter search, neutrino search, to cosmic radiation detection from near infrared to millimeter wavelengths. We are developing transition edge sensors using superconducting iridium thin films and we are proposing their use for future dark matter and neutrino search experiments. Our Ir films are deposited using an radio frequency (RF) magnetron sputtering and photolithographic techniques and measured using an adiabatic refrigerator capable of reaching temperatures of a few tens of mK. This thesis presents a detailed description of superconducting iridium thin films from the fabrication …
Weekly Message, 12/22/2008, David Schmidly
Weekly Message, 12/22/2008, David Schmidly
President Schmidly's Administration
No abstract provided.
2008-12-22 Unm News Minute, University Of New Mexico Communication And Marketing Department
2008-12-22 Unm News Minute, University Of New Mexico Communication And Marketing Department
UNM News Minute 2008
No abstract provided.
Introductory Course In Nuclear Engineering Receives Funding, Scheduled For Fall 2009, Admin
Introductory Course In Nuclear Engineering Receives Funding, Scheduled For Fall 2009, Admin
University of Mississippi News
No abstract provided.
Historical Documents Of The Municipality Of The City Of Valencia, Venezuela (Alcaldia Del Municipio De Valencia, Venezuela), Latin American Knowledge Harvester
Historical Documents Of The Municipality Of The City Of Valencia, Venezuela (Alcaldia Del Municipio De Valencia, Venezuela), Latin American Knowledge Harvester
Conference Proceedings and Notes
The Bolivarium historical collections are composed of several Venezuelan archives from the Colonial, Independence and Republican periods. See: http://lakh.unm.edu/handle/10229/91340
December 22, 2008 Reporter, University Of Alabama At Birmingham
December 22, 2008 Reporter, University Of Alabama At Birmingham
eReporter (campus newsletter)
No abstract provided.
Attitude Estimation And Maneuvering For Autonomous Obstacle Avoidance By Miniature Air Vehicles, James K. Hall
Attitude Estimation And Maneuvering For Autonomous Obstacle Avoidance By Miniature Air Vehicles, James K. Hall
Theses and Dissertations
Utilizing the Euler-Rodrigues symmetric parameters (attitude quaternion) to describe vehicle orientation, we develop a multiplicative, nonlinear (extended) variation of the Kalman filter (MEKF) to fuse data from low-cost sensors. The sensor suite is comprised of gyroscopes, accelerometers, and a GPS receiver. In contrast to the common approach of using the complete vehicle attitude as the quantities to be estimated, our filter states consist of the three components of an attitude error vector. In parallel with the time update of the attitude error estimate, we utilize the gyroscope measurements for the time propagation of the attitude quaternion. The accelerometer and the …
Deafdigest: Blue Edition, December 21, 2008, Barry Strassler
Deafdigest: Blue Edition, December 21, 2008, Barry Strassler
DeafDigest Blue 2008
No abstract provided.
2008 Winter Commencement, Nova Southeastern University
2008 Winter Commencement, Nova Southeastern University
NSU Commencement Programs
No abstract provided.
The Professor Who Fell Out The Window, Unh Communications And Public Affairs
The Professor Who Fell Out The Window, Unh Communications And Public Affairs
UNH Today Archive
Alumni remember their favorite professors