Sample records for low-field excitations print

  1. alfven wave excitation: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    waves are easily excited by various processes. Linear waves propagate at the Alfv'en speed v Guedel, Manuel 5 Nonlinear Excitation of Acoustic Modes by Large-Amplitude Alfven...

  2. anharmonic phonon excitations: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    excitation spectrum of infinitely long anharmonically trapped Bose-Einstein condensates, with the aim of overcoming inhomogeneous broadening. We compare the Bogoliubov...

  3. atomic excited states: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    assumption may be shown to be valid or invalid by future experiments. Aditya Aravind; Dustin Lorshbough; Sonia Paban 2014-03-25 229 Bogoliubov Excited States and the Lyth Bound...

  4. Magnetic Vortex Core Reversal by Low-Field Excitations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    thought to be necessary to accomplish this. At the ALS, a team of researchers from Germany, Belgium, and the U.S. has used time-resolved scanning transmission x-ray microscopy...

  5. Magnetic Vortex Core Reversal by Low-Field Excitations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9November 6, InaprilU .Magnetic Vortex Core

  6. Magnetic Vortex Core Reversal by Low-Field Excitations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9November 6, InaprilU .Magnetic Vortex CoreMagnetic

  7. Magnetic Vortex Core Reversal by Low-Field Excitations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9November 6, InaprilU .Magnetic Vortex

  8. Magnetic Vortex Core Reversal by Low-Field Excitations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9November 6, InaprilU .Magnetic VortexMagnetic

  9. Magnetic Vortex Core Reversal by Low-Field Excitations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9November 6, InaprilU .Magnetic

  10. Magnetic Vortex Core Reversal by Low-Field Excitations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9November 6, InaprilU .MagneticMagnetic Vortex Core

  11. Magnetic Vortex Core Reversal by Low-Field Excitations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your Home and It'll Love YouTokamak| NationalMagnetic Vortex

  12. Magnetic Vortex Core Reversal by Low-Field Excitations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your Home and It'll Love YouTokamak| NationalMagnetic

  13. Ultra-low field magnetic resonance using optically pumped noble gases and SQUID detection

    E-Print Network [OSTI]

    Wong-Foy, Annjoe G.

    2010-01-01T23:59:59.000Z

    Enhancement . . . . Ultra Low Field Xenon NMR ShowingIntroduction.. 4.2 Ultra Low FieldNuclear Polarization 5.10.3 Ultra Low Field Chemical Shift

  14. Low-field classroom nuclear magnetic resonance system

    E-Print Network [OSTI]

    Zimmerman, Clarissa Lynette

    2010-01-01T23:59:59.000Z

    The goal of this research was to develop a Low-field Classroom NMR system that will enable hands-on learning of NMR and MRI concepts in a Biological-Engineering laboratory course. A permanent magnet system, designed using ...

  15. Ultra-low field MRI of prostate cancer using SQUID detection

    E-Print Network [OSTI]

    Busch, Sarah Elizabeth

    2011-01-01T23:59:59.000Z

    coil. Chapter 3 3 Ultra low field MRI 3.1 Polarization TheUltra-low field MRI of prostate cancer using SQUID detectionSteven Conolly Spring 2011 Ultra-low field MRI of prostate

  16. Improving magnet designs with high and low field regions

    E-Print Network [OSTI]

    Bjřrk, R; Smith, A; Pryds, N

    2014-01-01T23:59:59.000Z

    A general scheme for increasing the difference in magnetic flux density between a high and a low magnetic field region by removing unnecessary magnet material is presented. This is important in, e.g., magnetic refrigeration where magnet arrays has to deliver high field regions in close proximity to low field regions. Also, a general way to replace magnet material with a high permeability soft magnetic material where appropriate is discussed. As an example these schemes are applied to a two dimensional concentric Halbach cylinder design resulting in a reduction of the amount of magnet material used by 42% while increasing the difference in flux density between a high and a low field region by 45%.

  17. Efficient Concomitant and Remanence Field Artifact Reduction in Ultra-Low-Field MRI Using a

    E-Print Network [OSTI]

    Efficient Concomitant and Remanence Field Artifact Reduction in Ultra-Low-Field MRI Using: For ultra-low-field MRI, the spatial-encoding mag- netic fields generated by gradient coils can have strong to pre-polarize magnetization can improve the signal-to-noise ratio of ultra- low-field MRI. Yet

  18. J. Phys. B: Atom. Molec. Phys., Vol. 11, No. 1, 1978. Printed in Great Britain. @ 1978 Analysis of excitation energies and transition moments

    E-Print Network [OSTI]

    Beebe, Nelson H. F.

    of excitation energies and transition moments Jens Oddershede, Poul J~rgensenand Nelson H F Beebe Department contributions to excitation energies and transition moments in a second-order polarisation propagator description of the electronic transition moments whereas excitation energies are virtually unaffected. We have

  19. Suppressing Multi-Channel Ultra-Low-Field MRI Measurement Noise Using Data Consistency and Image

    E-Print Network [OSTI]

    Suppressing Multi-Channel Ultra-Low-Field MRI Measurement Noise Using Data Consistency and Image of Mathematics, National Taiwan University, Taipei, Taiwan, 4 Elekta Oy, Helsinki, Finland Abstract Ultra-low. (2013) Suppressing Multi-Channel Ultra-Low-Field MRI Measurement Noise Using Data Consistency and Image

  20. Cryogenic exciter

    DOE Patents [OSTI]

    Bray, James William (Niskayuna, NY); Garces, Luis Jose (Niskayuna, NY)

    2012-03-13T23:59:59.000Z

    The disclosed technology is a cryogenic static exciter. The cryogenic static exciter is connected to a synchronous electric machine that has a field winding. The synchronous electric machine is cooled via a refrigerator or cryogen like liquid nitrogen. The static exciter is in communication with the field winding and is operating at ambient temperature. The static exciter receives cooling from a refrigerator or cryogen source, which may also service the synchronous machine, to selected areas of the static exciter and the cooling selectively reduces the operating temperature of the selected areas of the static exciter.

  1. Quadrature Rotating-Frame Gradient Fields for Ultra-Low Field Nuclear Magnetic Resonance and Imaging

    E-Print Network [OSTI]

    Bouchard, Louis-Serge

    2005-01-01T23:59:59.000Z

    Frame Gradient Fields For Ultra-Low Field Nuclear Magneticslow, as in the limit of ultra-low ?elds. In the ?rst case,B. Slice selection in ultra-low ?elds We ?rst examine the

  2. Ultra-low field nuclear magnetic resonance and magnetic resonance imaging to discriminate and identify materials

    DOE Patents [OSTI]

    Kraus, Robert H. (Los Alamos, NM); Matlashov, Andrei N. (Los Alamos, NM); Espy, Michelle A. (Los Alamos, NM); Volegov, Petr L. (Los Alamos, NM)

    2010-03-30T23:59:59.000Z

    An ultra-low magnetic field NMR system can non-invasively examine containers. Database matching techniques can then identify hazardous materials within the containers. Ultra-low field NMR systems are ideal for this purpose because they do not require large powerful magnets and because they can examine materials enclosed in conductive shells such as lead shells. The NMR examination technique can be combined with ultra-low field NMR imaging, where an NMR image is obtained and analyzed to identify target volumes. Spatial sensitivity encoding can also be used to identify target volumes. After the target volumes are identified the NMR measurement technique can be used to identify their contents.

  3. HgTe-low-field Strained HgTe: a textbook 3D topological insulator

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    HgTe-low-field Strained HgTe: a textbook 3D topological insulator Cl´ement Bouvier, Tristan Meunier martyrs 38054 Grenoble Cedex 9, France (Dated: December 9, 2011) Topological insulators can be seen-conductors and topological- insulators, other contributions make transport data more difficult to unravel. This letter

  4. He Lung Imaging in an Open Access, Very-Low-Field Human Magnetic Resonance Imaging System

    E-Print Network [OSTI]

    Walsworth, Ronald L.

    3 He Lung Imaging in an Open Access, Very-Low-Field Human Magnetic Resonance Imaging System R. W. Butler,6 F. W. Hersman,4 and R. L. Walsworth1 The human lung and its functions are extremely sensitive lung restrict sub- jects to lying horizontally. Imaging of human lungs using inhaled laser-polarized 3

  5. Measurement of Untruncated Nuclear Spin Interactions via Zero- to Ultra-Low-Field Nuclear Magnetic Resonance

    E-Print Network [OSTI]

    John W. Blanchard; Tobias F. Sjolander; Jonathan P. King; Micah P. Ledbetter; Emma H. Levine; Vikram S. Bajaj; Dmitry Budker; Alexander Pines

    2015-07-09T23:59:59.000Z

    Zero- to ultra-low-field nuclear magnetic resonance (ZULF NMR) provides a new regime for the measurement of nuclear spin-spin interactions free from effects of large magnetic fields, such as truncation of terms that do not commute with the Zeeman Hamiltonian. One such interaction, the magnetic dipole-dipole coupling, is a valuable source of spatial information in NMR, though many terms are unobservable in high-field NMR, and the coupling averages to zero under isotropic molecular tumbling. Under partial alignment, this information is retained in the form of so-called residual dipolar couplings. We report zero- to ultra-low-field NMR measurements of residual dipolar couplings in acetonitrile-2-$^{13}$C aligned in stretched polyvinyl acetate gels. This represents the first investigation of dipolar couplings as a perturbation on the indirect spin-spin $J$-coupling in the absence of an applied magnetic field. As a consequence of working at zero magnetic field, we observe terms of the dipole-dipole coupling Hamiltonian that are invisible in conventional high-field NMR. This technique expands the capabilities of zero- to ultra-low-field NMR and may have applications in precision measurement of subtle physical interactions, chemical analysis, and characterization of local mesoscale structure in materials.

  6. Ultra-low field nuclear magnetic resonance and magnetic resonance imaging to discriminate and identify materials

    SciTech Connect (OSTI)

    Matlashov, Andrei Nikolaevich; Urbaitis, Algis V.; Savukov, Igor Mykhaylovich; Espy, Michelle A.; Volegov, Petr Lvovich; Kraus, Jr., Robert Henry

    2013-03-05T23:59:59.000Z

    Method comprising obtaining an NMR measurement from a sample wherein an ultra-low field NMR system probes the sample and produces the NMR measurement and wherein a sampling temperature, prepolarizing field, and measurement field are known; detecting the NMR measurement by means of inductive coils; analyzing the NMR measurement to obtain at least one measurement feature wherein the measurement feature comprises T1, T2, T1.rho., or the frequency dependence thereof; and, searching for the at least one measurement feature within a database comprising NMR reference data for at least one material to determine if the sample comprises a material of interest.

  7. Low-noise pulsed pre-polarization magnet system for ultra-low field NMR

    SciTech Connect (OSTI)

    Sims, James R [Los Alamos National Laboratory; Schilling, Josef B [Los Alamos National Laboratory; Swenson, Charles A [Los Alamos National Laboratory; Gardner, David L [Los Alamos National Laboratory; Matlashov, Andrei N [Los Alamos National Laboratory; Ammerman, Curti N [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    A liquid cooled, pulsed electromagnet of solenoid configuration suitable for duty in an ultra-low field nuclear magnetic resonance system has been designed, fabricated and successfully operated. The magnet design minimizes Johnson noise, minimizes the hydrogen signal and incorporates minimal metal and no ferromagnetic materials. In addition, an acoustically quiet cooling system permitting 50% duty cycle operation was achieved by designing for single-phase, laminar flow, forced convection cooling. Winding, conductor splicing and epoxy impregnation techniques were successfully developed to produce a coil winding body with integral cooling passageways and adequate structural integrity. Issues of material compatibility, housing, coolant flow system and heat rejection system design will be discussed. Additionally, this pulsed electromagnet design has been extended to produce a boiling liquid cooled version in a paired solenoid configuration suitable for duty in an ultra-low field nuclear magnetic resonance system. This pair of liquid nitrogen cooled coils is currently being tested and commissioned. Issues of material compatibility, thermal insulation, thermal contraction, housing and coolant flow design are discussed.

  8. Residual Dipolar Couplings in Zero-to-Ultra-Low-Field Nuclear Magnetic Resonance

    E-Print Network [OSTI]

    Blanchard, John W; King, Jonathan P; Ledbetter, Micah P; Levine, Emma H; Bajaj, Vikram S; Budker, Dmitry; Pines, Alexander

    2015-01-01T23:59:59.000Z

    Zero-to-ultra-low-field nuclear magnetic resonance (ZULF-NMR) provides a new regime for the measurement of nuclear spin-spin interactions free from effects of large magnetic fields, such as truncation of terms that do not commute with the Zeeman Hamiltonian. One such interaction, the magnetic dipole-dipole coupling, is a valuable source of spatial information in NMR, though many terms are unobservable in high-field NMR, and the interaction averages to zero under isotropic molecular tumbling. Under partial orientational ordering, this information is retained in the form of so-called residual dipolar couplings. We report zero-to-ultra-low-field NMR measurements of residual dipolar couplings in acetonitrile-2-$^{13}$C aligned in stretched polyvinyl acetate gels. This represents the first investigation of dipolar couplings as a perturbation on the indirect spin-spin $J$-coupling in the absence of an applied magnetic field. As a consequence of working at zero magnetic field, we observe terms of the dipole-dipole c...

  9. Ultra-low field NMR for detection and characterization of 235 UF6

    SciTech Connect (OSTI)

    Espy, Michelle A [Los Alamos National Laboratory; Magnelind, Per E [Los Alamos National Laboratory; Matlashov, Andrei N [Los Alamos National Laboratory; Urbaitis, Algis V [Los Alamos National Laboratory; Volegov, Petr L [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    We have demonstrated the first ultra-low field (ULF) nuclear magnetic resonance measurements of uranium hexafluoride (UF{sub 6}), both depleted and 70% enriched, which is used in the uranium enrichment process. A sensitive non-invasive detection system would have an important role in non-proliferation surveillance. A two-frequency technique was employed to remove the transients induced by rapidly switching off the 50 mT pre-polarization field. A mean transverse relaxation time T{sub 2} of 24 ms was estimated for the un-enriched UF{sub 6} sample measured at a mean temperature of 80 C. Nuclear magnetic resonance at ULF has several advantages including the ability to measure through metal, such as pipes, and simple magnetic field generation hardware. We present here recent data and discuss the potential for non-proliferation monitoring of enrichment and flow velocity.

  10. Direct imaging of neural currents using ultra-low field magnetic resonance techniques

    DOE Patents [OSTI]

    Volegov, Petr L. (Los Alamos, NM); Matlashov, Andrei N. (Los Alamos, NM); Mosher, John C. (Los Alamos, NM); Espy, Michelle A. (Los Alamos, NM); Kraus, Jr., Robert H. (Los Alamos, NM)

    2009-08-11T23:59:59.000Z

    Using resonant interactions to directly and tomographically image neural activity in the human brain using magnetic resonance imaging (MRI) techniques at ultra-low field (ULF), the present inventors have established an approach that is sensitive to magnetic field distributions local to the spin population in cortex at the Larmor frequency of the measurement field. Because the Larmor frequency can be readily manipulated (through varying B.sub.m), one can also envision using ULF-DNI to image the frequency distribution of the local fields in cortex. Such information, taken together with simultaneous acquisition of MEG and ULF-NMR signals, enables non-invasive exploration of the correlation between local fields induced by neural activity in cortex and more `distant` measures of brain activity such as MEG and EEG.

  11. Probing Asphaltene Aggregation in Native Crude Oils with Low-Field NMR

    SciTech Connect (OSTI)

    Zielinski, Lukasz; Saha, Indrajit; Freed, Denise E.; Hrlimann, Martin D.; Liu, Yongsheng (BU-M); (Schlumberger-Doll)

    2010-04-13T23:59:59.000Z

    We show that low-field proton nuclear magnetic resonance (NMR) relaxation and diffusion experiments can be used to study asphaltene aggregation directly in crude oils. Relaxation was found to be multiexponential, reflecting the composition of a complex fluid. Remarkably, the relaxation data for samples with different asphaltene concentrations can be collapsed onto each other by a simple rescaling of the time dimension with a concentration-dependent factor {zeta}, whereas the observed diffusion behavior is unaffected by asphaltene concentration. We interpret this finding in terms of a theoretical model that explains the enhanced relaxation by the transitory entanglement of solvent hydrocarbons within asphaltene clusters and their subsequent slowed motion and diffusion within the cluster. We relate the measured scaling parameters {zeta} to cluster sizes, which we find to be on the order of 2.2-4.4 nm for an effective sphere diameter. These sizes are in agreement with the typical values reported in the literature as well as with the small-angle X-ray scattering (SAXS) experiments performed on our samples.

  12. Progress on detection of liquid explosives using ultra-low field MRI

    SciTech Connect (OSTI)

    Espy, Michelle A [Los Alamos National Laboratory; Matlashov, Andrei N [Los Alamos National Laboratory; Volegov, Petr L [Los Alamos National Laboratory; Schuttz, Larry M [Los Alamos National Laboratory; Baguisa, Shermiyah [Los Alamos National Laboratory; Dunkerley, David [Los Alamos National Laboratory; Magnelind, Per [Los Alamos National Laboratory; Owens, Tuba [Los Alamos National Laboratory; Sandin, Henrik [Los Alamos National Laboratory; Urbaitis, Algis [Los Alamos National Laboratory

    2010-01-01T23:59:59.000Z

    Nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) methods are widely used in medicine, chemistry and industry. Over the past several years there has been increasing interest in performing NMR and MRI in the ultra-low field (ULF) regime, with measurement field strengths of 10-100 microTesla and pre-polarization fields of 30-50 mTesla. The real-time signal-to-noise ratio for such measurements is about 100. Our group at LANL has built and demonstrated the performance of SQUID-based ULF NMR/MRI instrumentation for classification of materials and detection of liquid explosives via their relaxation properties measured at ULF, using T{sub 1}, and T{sub 2}, and T{sub 1} frequency dispersion. We are also beginning to investigate the performance of induction coils as sensors. Here we present recent progress on the applications of ULF MR to the detection of liquid explosives, in imaging and relaxometry.

  13. A LOW-FIELD LOW-ASPECT RATIO TOKAMAK J. L. Shohet, G. A. Emmert, J. E. Scharer, S. Yoshikawa/*

    E-Print Network [OSTI]

    Sprott, Julien Clinton

    A LOW-FIELD LOW-ASPECT RATIO TOKAMAK J. L. Shohet, G. A. Emmert, J. E. Scharer, S. Yoshikawa/* J. F of this report is to consider the type of 1 experimental program utilizing a tokamak configuration that would in current tokamak research are that low aspect , d ' 1 'II b ' rato evces w e most lmportant. The lowest

  14. Impacts of pellets injected from the low-field side on plasma in ITER

    SciTech Connect (OSTI)

    Wisitsorasak, A. [Mahidol University, Faculty of Science (Thailand); Onjun, T. [Thammasat University, School of Manufacturing Systems and Mechanical Engineering, Sirindhorn International Institute of Technology (Thailand)

    2011-01-15T23:59:59.000Z

    Impacts of pellets injected from the low-field side (LFS) on plasma in ITER are investigated using the 1.5D BALDUR integrated predictive modeling code. In these simulations, the pellet ablation is described using the neutral gas shielding (NGS) model. The pellet ablation model is coupled with the plasma core transport model, which is a combination of the MMM95 anomalous transport model and NCLASS neoclassical transport model. The boundary conditions are assumed to be at the top of the pedestal, in which the pedestal parameters are predicted using a pedestal model based on the theoretical-based pedestal width scaling (either magnetic and flow shear stabilization width scaling, or flow shear stabilization width scaling, or normalized poloidal pressure width scaling) and the infinite-n ballooning mode pressure gradient limit. These pedestal models depend sensitively on the density at the top of the pedestal, which can be strongly influenced by the injection of pellets. The combination of the MMM95 and NCLASS models, together with the pedestal and NGS models, is used to simulate the time evolution of the plasma current, ion and electron temperatures, and density profiles for ITER standard type-I ELMy H-mode discharges during the injection of LFS pellets. It is found that the injection of pellets results in a complicated plasma scenario, especially in the outer region of the plasma and the plasma conditions at the boundary in which the pellet has an impact on increasing the plasma edge density, but reducing the plasma edge temperature. The LFS pellet has a stronger impact on the edge as compared to the center. For fusion performance, the pellet can result in either enhancement or degradation, depending sensitively on the pellet parameters; such as the pellet size, pellet velocity, and pellet frequency. For example, when a series of deuterium pellets with a size of 0.5 cm, velocity of 1 km/s, and frequency of 2 Hz are injected into the ITER plasma from the LFS, the plasma performance, evaluated in terms of Q{sub fusion}, can increase to 72% of that before the use of pellets. It is also found that the injection of pellets results in an increase in the ion and electron densities, but does not enhance the central plasma density. On the other hand, it results in the formation of another peak of the plasma density in the outer region near the plasma edge. The formation of the density peak results in the reduction of plasma transports near the edge by decreasing the contributions of ion-temperature-gradient and trapped electron modes, as well as kinetic ballooning modes.

  15. Windows XP - LPR Printing

    E-Print Network [OSTI]

    dbrown

    2004-07-27T23:59:59.000Z

    Printer Setup in Windows XP. To print to the math department printers in Windows XP, “Print Services for Unix” must be installed. To begin installation of “

  16. Excited Charm States

    SciTech Connect (OSTI)

    Shukla, S.

    1994-12-31T23:59:59.000Z

    Characteristics of mass spectra and decays of orbitally excited charm mesons and baryons, expected on the basis of quark models and Heavy Quark Symmetry, are briefly described. The difficulties associated with measurements on these excited states are discussed. The accuracy and reliability of currently available experimental information is examined. The reasons, for the widely accepted spin-parity assignments to the observed excited mesons and baryons, are stated. Finally, the experimental data, with the accepted spin-parity assignments, is compared with expectations based on quark models and Heavy Quark Symmetry.

  17. A compact high-performance low-field NMR apparatus for measurements on fluids at very high pressures and temperatures

    SciTech Connect (OSTI)

    Freedman, R.; Anand, V., E-mail: VAnand@slb.com; Ganesan, K.; Tabrizi, P.; Torres, R. [Schlumberger Technology Corp., 110 Schlumberger Drive, Sugar Land, Texas 77478 (United States)] [Schlumberger Technology Corp., 110 Schlumberger Drive, Sugar Land, Texas 77478 (United States); Grant, B. [Grant Innovation, 618 Mesquite Drive, Cedar Creek, Texas 78612 (United States)] [Grant Innovation, 618 Mesquite Drive, Cedar Creek, Texas 78612 (United States); Catina, D. [National Oilwell Varco, 10302 Mula Road, Stafford, Texas 77477 (United States)] [National Oilwell Varco, 10302 Mula Road, Stafford, Texas 77477 (United States); Ryan, D.; Borman, C.; Krueckl, C. [Schlumberger DBR Technology Center, 9450–17 Avenue NW, Edmonton, Alberta (Canada)] [Schlumberger DBR Technology Center, 9450–17 Avenue NW, Edmonton, Alberta (Canada)

    2014-02-15T23:59:59.000Z

    We discuss an innovative new high-performance apparatus for performing low-field Nuclear Magnetic Resonance (NMR) relaxation times and diffusion measurements on fluids at very high pressures and high temperatures. The apparatus sensor design and electronics specifications allow for dual deployment either in a fluid sampling well logging tool or in a laboratory. The sensor and electronics were designed to function in both environments. This paper discusses the use of the apparatus in a laboratory environment. The operating temperature and pressure limits, and the signal-to-noise ratio (SNR) of the new system exceed by a very wide margin what is currently possible. This major breakthrough was made possible by a revolutionary new sensor design that breaks many of the rules of conventional high pressure NMR sensor design. A metallic sample holder capable of operating at high pressures and temperatures is provided to contain the fluid under study. The sample holder has been successfully tested for operation up to 36 Kpsi. A solenoid coil wound on a slotted titanium frame sits inside the metallic sample holder and serves as an antenna to transmit RF pulses and receive NMR signals. The metal sample holder is sandwiched between a pair of gradient coils which provide a linear field gradient for pulsed field gradient diffusion measurements. The assembly sits in the bore of a low-gradient permanent magnet. The system can operate over a wide frequency range without the need for tuning the antenna to the Larmor frequency. The SNR measured on a water sample at room temperature is more than 15 times greater than that of the commercial low-field system in our laboratory. Thus, the new system provides for data acquisition more than 200 times faster than was previously possible. Laboratory NMR measurements of relaxations times and diffusion coefficients performed at pressures up to 25 Kpsi and at temperatures up to 175?°C with crude oils enlivened with dissolved hydrocarbon gases (referred to as “live oils”) are shown. This is the first time low-field NMR measurements have been performed at such high temperatures and pressures on live crude oil samples. We discuss the details of the apparatus design, tuning, calibration, and operation. NMR data acquired at multiple temperatures and pressures on a live oil sample are discussed.

  18. 3D Printing Electronics

    E-Print Network [OSTI]

    Stryk, Oskar von

    Login Register Home Videos Jobs Games 3D Printing Electronics Design Software Designer Edge for 3D Printing · -- B6 Sigma Labs (ticker SGLB) is not the same company as Sigma Technologies

  19. Exciting new PDSF developments

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist. Category UC-l 1, 13Evacuation2489 ExaminationExampleuNewsExciting

  20. Inkjet printed electronics using copper nanoparticle ink

    E-Print Network [OSTI]

    Kang, Jin Sung; Kim, Hak Sung; Ryu, Jongeun; Thomas Hahn, H.; Jang, Seonhee; Joung, Jae Woo

    2010-01-01T23:59:59.000Z

    providing printed electronics using copper nanoparticles.0049-3 Inkjet printed electronics using copper nanoparticleand quality of the printed electronics. In this paper, we

  1. alters neuronal excitability: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Modulates Vesicular Traffic by Altering Phosphoinositide Metabolism Lorraine D. Hernandez,1 * Karsten Hueffer,1 Markus R. Wenk,2 Jorge E. Galan1 Salmonella enterica,...

  2. air flow excitation: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and the mass outflow rate strongly depend on the temperature of the initial torus. The ratio of the average Maxwell stress generated by the magneto-rotational instability (MRI)...

  3. al excitation function: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of ArII and N2 + DAMOP 2007 Amanda Fricke Dr. Timothy Gay Jack;References 1 http:prl.anu.eduaustudentinfo 2 H.M. Al-Khateeb, B.G. Birdsey, and T.J. Gay, UNL Doctoral....

  4. antiferromagnet magnetic excitations: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Driving Cycle (NEDC) by taking into account all operating points in the torque-speed plan. Finally, the optimization problem of such hybrid exci- tation machine for a given...

  5. acoustic modes excited: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    "safety factor" q, the CGL (G. Chew, M. Goldberger, F. Low, 1956)1 double-adiabatic fluid closure is applied to formulate a theory for these modes. The basic linear normal mode...

  6. anderson localization excited: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The regimes of Anderson attractors can be potentially realized with polariton condensates lattices and cavity-QED arrays. T. V. Laptyeva; A. A. Tikhomirov; O. I. Kanakov; M....

  7. abnormal resistive zones: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NO PRINTING ZONE NO PRINTING ZONE NO PRINTING ZONE NO PRINTING ZONE Kainen, Paul C. 11 Seismic Amplitude Versus Offset (AVO) Character of Geopressured Transition Zones Geosciences...

  8. Fusion excitation function revisited

    E-Print Network [OSTI]

    Ph. Eudes; Z. Basrak; F. Sébille; V. de la Mota; G. Royer; M. Zori?

    2012-09-28T23:59:59.000Z

    We report on a comprehensive systematics of fusion-evaporation and/or fusion-fission cross sections for a very large variety of systems over an energy range 4-155 A.MeV. Scaled by the reaction cross sections, fusion cross sections do not show a universal behavior valid for all systems although a high degree of correlation is present when data are ordered by the system mass asymmetry.For the rather light and close to mass-symmetric systems the main characteristics of the complete and incomplete fusion excitation functions can be precisely determined. Despite an evident lack of data above 15A.MeV for all heavy systems the available data suggests that geometrical effects could explain the persistence of incomplete fusion at incident energies as high as 155A.MeV.

  9. Fission fragment excited laser system

    DOE Patents [OSTI]

    McArthur, David A. (Albuquerque, NM); Tollefsrud, Philip B. (Albuquerque, NM)

    1976-01-01T23:59:59.000Z

    A laser system and method for exciting lasing action in a molecular gas lasing medium which includes cooling the lasing medium to a temperature below about 150 K and injecting fission fragments through the lasing medium so as to preferentially excite low lying vibrational levels of the medium and to cause population inversions therein. The cooled gas lasing medium should have a mass areal density of about 5 .times. 10.sup.-.sup.3 grams/square centimeter, relaxation times of greater than 50 microseconds, and a broad range of excitable vibrational levels which are excitable by molecular collisions.

  10. Compact organic vapor jet printing print head

    DOE Patents [OSTI]

    Forrest, Stephen R; McGraw, Gregory

    2013-12-24T23:59:59.000Z

    A first device is provided. The first device includes a print head, and a first gas source hermetically sealed to the print head. The print header further includes a first layer comprising a plurality of apertures, each aperture having a smallest dimension of 0.5 to 500 microns. A second layer is bonded to the first layer. The second layer includes a first via in fluid communication with the first gas source and at least one of the apertures. The second layer is made of an insulating material.

  11. Engraving Print Classification

    SciTech Connect (OSTI)

    Hoelck, Daniel [Instituto de Fisica, P. Universidad Catolica de Valparaiso, Av. Brasil 2905, Valparaiso (Chile); Barbe, Joaquim [Grupo Felix Klein, Facultad de Ciencias, Universidad de Santiago de Chile, Av. Lib. Bernardo O'Higgins 3363 (Chile)

    2008-04-15T23:59:59.000Z

    A print is a mark, or drawing, made in or upon a plate, stone, woodblock or other material which is cover with ink and then is press usually into a paper reproducing the image on the paper. Engraving prints usually are image composed of a group of binary lines, specially those are made with relief and intaglio techniques. Varying the number and the orientation of lines, the drawing of the engraving print is conformed. For this reason we propose an application based on image processing methods to classify engraving prints.

  12. Industrial applications of photonuclear resonance excitation

    E-Print Network [OSTI]

    Chichester, David Lee, 1971-

    2000-01-01T23:59:59.000Z

    Photonuclear resonance excitation refers to a variety of photonuclear interaction processes that lead to the excitation of a nucleus from some initial state to a higher energy nuclear state. Typical excited nuclear state ...

  13. Exciting Students About Science & Engineering ...

    E-Print Network [OSTI]

    Evans, Paul G.

    Exciting Students About Science & Engineering ... ASM MATERIALS CAMP® 2013 MATERIALS IN TODAY'S WORLD Materials science and engineering is a study of the relationship between the structure with extensive involvement in laboratory facilities to actively explore materials science & engineering

  14. Superfluidity and excitations at unitarity

    E-Print Network [OSTI]

    Dean Lee

    2006-12-18T23:59:59.000Z

    We present lattice results for spin-1/2 fermions at unitarity, where the effective range of the interaction is zero and the scattering length is infinite. We measure the spatial coherence of difermion pairs for a system of 6, 10, 14, 18, 22, 26 particles with equal numbers of up and down spins in a periodic cube. Using Euclidean time projection, we analyze ground state properties and transient behavior due to low-energy excitations. At asymptotically large values of t we see long-range order consistent with spontaneously broken U(1) fermion-number symmetry and a superfluid ground state. At intermediate times we see exponential decay in the t-dependent signal due to an unknown low-energy excitation. We probe this low-energy excitation further by calculating two-particle correlation functions. We find that the excitation has the properties of a chain of particles extending across the periodic lattice.

  15. Excitation optimization for damage detection

    SciTech Connect (OSTI)

    Bement, Matthew T [Los Alamos National Laboratory; Bewley, Thomas R [UCSD

    2009-01-01T23:59:59.000Z

    A technique is developed to answer the important question: 'Given limited system response measurements and ever-present physical limits on the level of excitation, what excitation should be provided to a system to make damage most detectable?' Specifically, a method is presented for optimizing excitations that maximize the sensitivity of output measurements to perturbations in damage-related parameters estimated with an extended Kalman filter. This optimization is carried out in a computationally efficient manner using adjoint-based optimization and causes the innovations term in the extended Kalman filter to be larger in the presence of estimation errors, which leads to a better estimate of the damage-related parameters in question. The technique is demonstrated numerically on a nonlinear 2 DOF system, where a significant improvement in the damage-related parameter estimation is observed.

  16. J. Phys. F : Metal Phys., Vol. 7, No. 12, 1977. Printed in Great Britain. @ 1977 LETTER TO THE EDITOR

    E-Print Network [OSTI]

    Gimzewski, James

    measurements of Au 4f and Ag 3d core- level spectra excited with synchrotron radiation at energies of the orderJ. Phys. F : Metal Phys., Vol. 7, No. 12, 1977. Printed in Great Britain. @ 1977 LETTER and Lindau (1977)discuss in detail the energy resolution and performance attainable and it has become clear

  17. Type-I superconductor pick-up coil in superconducting quantum interference device-based ultra-low field nuclear magnetic resonance

    SciTech Connect (OSTI)

    Hwang, Seong-min, E-mail: smhwang@kriss.re.kr; Kim, Kiwoong; Kyu Yu, Kwon; Lee, Seong-Joo; Hyun Shim, Jeong [Korea Research Institute of Standards and Science, Daejeon 305-340 (Korea, Republic of); Körber, Rainer [Physikalisch-Technische Bundesanstalt (PTB), Abbestraße 2-12, 10587 Berlin (Germany); Magnicon GmbH, Division Berlin, Abbestraße 2-12, D-10587 Berlin (Germany); Burghoff, Martin [Physikalisch-Technische Bundesanstalt (PTB), Abbestraße 2-12, 10587 Berlin (Germany)

    2014-02-10T23:59:59.000Z

    In ultra-low field nuclear magnetic resonance (ULF-NMR) with strong prepolarization field (B{sub p}), type-II superconducting pick-up coils may be vulnerable to flux pinning from the strong B{sub p}. Pick-up coils made of NbTi, Nb, and Pb were evaluated in terms of acquired NMR signal quality. The type-II pick-up coils showed degraded signals above 61?mT maximum exposure, while the Pb pick-up coil exhibited no such degradation. Furthermore, a negative counter pulse following a strong B{sub p} was shown to follow magnetic hysteresis loop to unpin the trapped flux in the type-II pick-up coil and restore the NMR signal.

  18. Content-adaptive lenticular prints

    E-Print Network [OSTI]

    Tompkin, James

    Lenticular prints are a popular medium for producing automultiscopic glasses-free 3D images. The light field emitted by such prints has a fixed spatial and angular resolution. We increase both perceived angular and spatial ...

  19. Idea Generation 3D printing

    E-Print Network [OSTI]

    Papadopouli, Maria

    2012 Idea Generation 3D printing at nanoscale Cruising on electrical roads Pushing back against Centre micro and nanoscale 15 Taking 3D printing to the nanoscale 18 Fighting cancer with a "lab

  20. Organic vapor jet printing system

    DOE Patents [OSTI]

    Forrest, Stephen R

    2012-10-23T23:59:59.000Z

    An organic vapor jet printing system includes a pump for increasing the pressure of an organic flux.

  1. Autoresonant Excitation of Diocotron Waves

    E-Print Network [OSTI]

    Wurtele, Jonathan

    of the wave, the pump and the wave will phase lock at very low wave amplitude. When the pump reachesAutoresonant Excitation of Diocotron Waves J. Fajans E. Gilson U.C. Berkeley L. Friedland Hebrew of phase with the oscillator, and the os- cillator's amplitude will decrease, eventually reaching zero

  2. Communicating the Excitement of Science

    ScienceCinema (OSTI)

    Michael Turner

    2010-01-08T23:59:59.000Z

    In this talk (which will include some exciting science) I will discuss some lessons I have learned about communicating science to scientists (in my own field and others), students, the public, the press, and policy makers in giving 500+ colloquia and seminars, 300+ public lectures and many informal presentations (including cocktail parties).

  3. Part removal of 3D printed parts

    E-Print Network [OSTI]

    Peńa Doll, Mateo

    2014-01-01T23:59:59.000Z

    An experimental study was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a 3D printing using a patent ...

  4. Improvements in Low Field MRI

    E-Print Network [OSTI]

    Ogier, Stephen E

    2013-02-01T23:59:59.000Z

    The world of clinical magnetic resonance imaging (MRI) is presently dominated by multi-million dollar machines that use large superconducting magnets to generate very high quality images. It is possible to perform MRI at lower magnetic field...

  5. Paramagnetic resonance at low fields

    E-Print Network [OSTI]

    Becker, Stewart

    1954-01-01T23:59:59.000Z

    ....................................... 88 TABLE OF CONTENTS LIST OF FIGURES FIGURE PAGE II-l. Apparatus for Observing Paramagnetic Resonance . . . 5 II-2. Splitting of the Energy Level in the Presence of a Steady Magnetic Field Ho . . . .............. 9 II-3. Molecular Structure... Th experiences a torque expressed by A A A . . L - X H (2) Newton's Law for rotational motion is * dP L ? XT ? (3)dt A combination of equations (l), (2) and (3 ) gives 9 5 k A which is the equation of motion for a vector P of constant...

  6. Improvements in Low Field MRI 

    E-Print Network [OSTI]

    Ogier, Stephen E

    2013-02-01T23:59:59.000Z

    previously developed a desktop MRI system, but the receiver was not phase stable. By digitizing the second RF pulse in the pulse sequence, it is possible to extract information about system delays to correct for phase shifts, rendering the system phase stable...

  7. Low field magnetic resonance imaging

    DOE Patents [OSTI]

    Pines, Alexander (Berkeley, CA); Sakellariou, Dimitrios (Billancourt, FR); Meriles, Carlos A. (Fort Lee, NJ); Trabesinger, Andreas H. (London, GB)

    2010-07-13T23:59:59.000Z

    A method and system of magnetic resonance imaging does not need a large homogenous field to truncate a gradient field. Spatial information is encoded into the spin magnetization by allowing the magnetization to evolve in a non-truncated gradient field and inducing a set of 180 degree rotations prior to signal acquisition.

  8. Intense pulsed light sintering of copper nanoink for printed electronics

    E-Print Network [OSTI]

    Kim, Hak-Sung; Dhage, Sanjay R.; Shim, Dong-Eun; Hahn, H. Thomas

    2009-01-01T23:59:59.000Z

    copper nanoink for printed electronics Hak-Sung Kim · Sanjay1 Introduction Printed electronics techniques such as inkjetcomponents of printed electronics are conducting lines and ?

  9. Pennsylvania Company Develops Solar Cell Printing Technology

    Broader source: Energy.gov [DOE]

    The technology uses Plextronics’ conductive inks that can be printed by manufacturers worldwide to make solar cells, potentially as easily as they might print a newspaper.

  10. Structural Integration of Silicon Solar Cells and Lithium-ion Batteries Using Printed Electronics

    E-Print Network [OSTI]

    Kang, Jin Sung

    2012-01-01T23:59:59.000Z

    4 Inkjet Printed Electronics Using Copper Nanoparticle29 Inkjet Printed Electronics For Multifunctional Compositenanocrystals toward printed electronics,” Nanotechnology,

  11. Double Photoionization of excited Lithium and Beryllium

    E-Print Network [OSTI]

    Yip, Frank L.

    2010-01-01T23:59:59.000Z

    of excited Lithium and Beryllium F. L. Yip, 1 C. W. McCurdy,ion- ization of lithium and beryllium starting from aligned,DPI from aligned lithium and beryllium atoms in excited P-

  12. Wedding ring shaped excitation coil

    DOE Patents [OSTI]

    MacLennan, Donald A. (Gaithersburg, MD); Tsai, Peter (Olney, MD)

    2001-01-01T23:59:59.000Z

    A high frequency inductively coupled electrodeless lamp includes an excitation coil with an effective electrical length which is less than one half wavelength of a driving frequency applied thereto, preferably much less. The driving frequency may be greater than 100 MHz and is preferably as high as 915 MHz. Preferably, the excitation coil is configured as a non-helical, semi-cylindrical conductive surface having less than one turn, in the general shape of a wedding ring. At high frequencies, the current in the coil forms two loops which are spaced apart and parallel to each other. Configured appropriately, the coil approximates a Helmholtz configuration. The lamp preferably utilizes an bulb encased in a reflective ceramic cup with a pre-formed aperture defined therethrough. The ceramic cup may include structural features to aid in alignment and/or a flanged face to aid in thermal management. The lamp head is preferably an integrated lamp head comprising a metal matrix composite surrounding an insulating ceramic with the excitation integrally formed on the ceramic. A novel solid-state oscillator preferably provides RF power to the lamp. The oscillator is a single active element device capable of providing over 70 watts of power at over 70% efficiency.

  13. Regulating energy transfer of excited carriers and the case for...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Regulating energy transfer of excited carriers and the case for excitation-induced hydrogen dissociation on hydrogenated Regulating energy transfer of excited carriers and the case...

  14. E-print Network: Research Communications for Scientists and Engineers

    Office of Scientific and Technical Information (OSTI)

    E-print Web Log E-print Network E-print Network About Search Browse by Discipline Find Scientific Societies Receive E-print Alerts Contact Us Help Home Site Map OSTI DOE For...

  15. Theoretical studies of electronically excited states

    SciTech Connect (OSTI)

    Besley, Nicholas A. [School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD (United Kingdom)

    2014-10-06T23:59:59.000Z

    Time-dependent density functional theory is the most widely used quantum chemical method for studying molecules in electronically excited states. However, excited states can also be computed within Kohn-Sham density functional theory by exploiting methods that converge the self-consistent field equations to give excited state solutions. The usefulness of single reference self-consistent field based approaches for studying excited states is demonstrated by considering the calculation of several types of spectroscopy including the infrared spectroscopy of molecules in an electronically excited state, the rovibrational spectrum of the NO-Ar complex, core electron binding energies and the emission spectroscopy of BODIPY in water.

  16. 3D Printing Prof. Hank Dietz

    E-Print Network [OSTI]

    Dietz, Henry G. "Hank"

    3D Printing Prof. Hank Dietz TCMS, March 14, 2014 University of Kentucky Electrical & Computer #12;3D With Glue Layers of paper: printed with glue & cut Layers of powder: printed with glue Can also be printed in full color #12;3D Extrusion (RepRaps) FDM: Fused Deposition Modeling FFF: Fused

  17. This document is produced by the University Print Management Team

    E-Print Network [OSTI]

    Li, Yi

    University Print Management Team. A Guide To Best Practice Printing #12;This document is produced by the University Print Management Team (UPMT) to raise awareness of printing on campus, and to demonstrate how we managing the print process to reduce cost, waste and to improve the functionality and availability of print

  18. alteration print gap: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Elihu, David Morad 2006-01-01 2 Bridging the Gap: Automated Steady Scaffoldings for 3D Printing Jrmie Dumas Computer Technologies and Information Sciences Websites Summary:...

  19. Excited Baryons in Holographic QCD

    SciTech Connect (OSTI)

    de Teramond, Guy F.; /Costa Rica U.; Brodsky, Stanley J.; /SLAC /Southern Denmark U., CP3-Origins

    2011-11-08T23:59:59.000Z

    The light-front holographic QCD approach is used to describe baryon spectroscopy and the systematics of nucleon transition form factors. Baryon spectroscopy and the excitation dynamics of nucleon resonances encoded in the nucleon transition form factors can provide fundamental insight into the strong-coupling dynamics of QCD. The transition from the hard-scattering perturbative domain to the non-perturbative region is sensitive to the detailed dynamics of confined quarks and gluons. Computations of such phenomena from first principles in QCD are clearly very challenging. The most successful theoretical approach thus far has been to quantize QCD on discrete lattices in Euclidean space-time; however, dynamical observables in Minkowski space-time, such as the time-like hadronic form factors are not amenable to Euclidean numerical lattice computations.

  20. Electronic Excitations Transform Structure of Ceramics | ornl...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    & Ti atoms; O vacancies, VO, are small spheres with blue cores. Ab initio molecular dynamics calculations reveal that electronic excitations induce a structural instability that...

  1. Electron correlations in doubly excited helium

    SciTech Connect (OSTI)

    van der Merwe, P.d.T.

    1985-06-01T23:59:59.000Z

    Electron correlations in doubly excited s-state they are discussed, in accordance with the results reported by Herrick, Kellman and Polak.

  2. Rydberg excitation of Bose-Einstein condensates

    E-Print Network [OSTI]

    Rolf Heidemann; Ulrich Raitzsch; Vera Bendkowsky; Björn Butscher; Robert Löw; Tilman Pfau

    2007-10-30T23:59:59.000Z

    Rydberg atoms provide a wide range of possibilities to tailor interactions in a quantum gas. Here we report on Rydberg excitation of Bose-Einstein condensed 87Rb atoms. The Rydberg fraction was investigated for various excitation times and temperatures above and below the condensation temperature. The excitation is locally blocked by the van der Waals interaction between Rydberg atoms to a density-dependent limit. Therefore the abrupt change of the thermal atomic density distribution to the characteristic bimodal distribution upon condensation could be observed in the Rydberg fraction. The observed features are reproduced by a simulation based on local collective Rydberg excitations.

  3. INTERNSHIP AGREEMENT (Please Print)

    E-Print Network [OSTI]

    Bogaerts, Steven

    Rev. 5/12 INTERNSHIP AGREEMENT (Please Print) STUDENT MUST HAVE A GPA OF 2.0+ AND A MINIMUM OF 64 COMPLETED CREDIT HOURS TO REGISTER FOR AN INTERNSHIP. ALL INTERNSHIPS DONE FOR CREDIT ARE PASS/FAIL. A MAXIMUM OF 10 SEMESTER HOURS OF INTERNSHIP CREDIT IS POSSIBLE. THROUGH A COMBINATION OF INTERNSHIPS

  4. Optimization of Two-photon Excited Fluorescence Enhancement between Tunable and Broadband Femtosecond Laser Pulse Excitations

    E-Print Network [OSTI]

    Wang, Chao

    2012-02-14T23:59:59.000Z

    This project explores optimization of two-photon excited fluorescence (TPEF) enhancement between tunable narrowband and un-tuned broadband femtosecond (fs) laser pulse excitations for two-photon microscopy (TPM). The research is conducted...

  5. Study of excited nucleons and their structure

    SciTech Connect (OSTI)

    Burkert, Volker D. [JLAB, Newport News, VA (United States)

    2014-01-01T23:59:59.000Z

    Recent advances in the study of excited nucleons are discussed. Much of the progress has been achieved due to the availability of high precision meson production data in the photoproduction and electroproduction sectors, the development of multi-channel partial wave analysis techniques, and advances in Lattice QCD with predictions of the full excitation spectrum.

  6. Printed Optics: 3D Printing of Embedded Optical Elements for Interactive Devices

    E-Print Network [OSTI]

    Poupyrev, Ivan

    Printed Optics: 3D Printing of Embedded Optical Elements for Interactive Devices Karl D.D. Willis1 d Figure 1: Custom optical elements are fabricated with 3D printing and embedded in interactive), and embedded optoelectronics (d). ABSTRACT We present an approach to 3D printing custom optical ele- ments

  7. Processing a printed wiring board by single bath electrodeposition

    DOE Patents [OSTI]

    Meltzer, Michael P. (Oakland, CA); Steffani, Christopher P. (Livermore, CA); Gonfiotti, Ray A. (Livermore, CA)

    2010-12-07T23:59:59.000Z

    A method of processing a printed wiring board. Initial processing steps are implemented on the printed wiring board. Copper is plated on the printed wiring board from a bath containing nickel and copper. Nickel is plated on the printed wiring board from a bath containing nickel and copper and final processing steps are implemented on the printed wiring board.

  8. Processing A Printed Wiring Board By Single Bath Electrodeposition

    DOE Patents [OSTI]

    Meltzer, Michael P. (Oakland, CA); Steffani, Christopher P. (Livermore, CA); Gonfiotti, Ray A. (Livermore, CA)

    2003-04-15T23:59:59.000Z

    A method of processing a printed wiring board by single bath electrodeposition. Initial processing steps are implemented on the printed wiring board. Copper is plated on the printed wiring board from a bath containing nickel and copper. Nickel is plated on the printed wiring board from the bath containing nickel and copper and final processing steps are implemented on the printed wiring board.

  9. The Astrophysical Journal, 753:57 (11pp), 2012 July 1 doi:10.1088/0004-637X/753/1/57 C 2012. The American Astronomical Society. All rights reserved. Printed in the U.S.A.

    E-Print Network [OSTI]

    Savin, Daniel Wolf

    recombination (DR) resonances associated with 3s 3p and 3p 3d core excitations. At higher energies, we observe. The American Astronomical Society. All rights reserved. Printed in the U.S.A. ELECTRON­ION RECOMBINATION OF Fe-beam recombination rate coefficient (MBRRC) for collision energies from 0 to 1500 eV is presented. This work uses

  10. The Makerbot: Desktop 3D printing

    E-Print Network [OSTI]

    Roughan, Matthew

    The Makerbot: Desktop 3D printing Matthew Roughan School of Mathematical Sciences matthew is Lots of maths hidden in something like 3D printing Geometry and Linear algebra ++ Same math used

  11. MPRINT: VAX printing made simple

    SciTech Connect (OSTI)

    Worlton, T.

    1994-08-01T23:59:59.000Z

    Users with stand-alone personal computers and personal printers usually find printing simple, but on a VAX computer or VAX cluster there may be many printers of different types located in different areas. The print queues set up for these printers may require different form qualifiers and may not all be able to print all documents. This article describes the basic steps a VAX system manager should take in setting up and managing print queues on a VAX and tells how to access these queues from a VAX, Unix, Macintosh, or DOS Computer. It gives a basic overview, but includes several helpful items that are obscure or completely undocumented. Following this overview, there is a description of a Fortran program, MPRINT, written to simplify printing for users. The MPRINT program simplifies the choice of printers and print forms for users of VAX print queues by allowing them to select from a one line per queue menu. The menu includes queue descriptions and only lists printers which can correctly print the specified file. MPRINT selects the correct form to use based on file type and maximum record length of the file. MPRINT may be useful at your site, and provides examples of a number of system services. MPRINT includes routines to do a user open of a file and get information from the File and Record Access Blocks (FAB and RAB), and a routine to obtain information about print queues. There are also routines to parse a file name, detab a character buffer, and trim trailing nulls and blanks from a character string.

  12. Printing and Scanning Instructions Printing on Savin (reserved for Job Market/RA/TA print jobs ONLY)

    E-Print Network [OSTI]

    Niebur, Ernst

    1 Printing and Scanning Instructions Printing on Savin (reserved for Job Market/RA/TA print jobs, stapling, or three holes punch, you can find them under the "Layout" tab and "Advanced". #12;2 Scanning on Savin (NOTE: scanning is Free of Charge) A feature of the new copier is the option of using it to scan

  13. Adaptive excitation control in power systems

    E-Print Network [OSTI]

    Chiu, Pei-Chen

    2006-08-16T23:59:59.000Z

    This thesis presents an adaptive excitation controller of power systems. The control law is derived by using model reference adaptive control (MRAC) or adaptive pole placement control (APPC) and an equilibrium tracking mechanism is implemented...

  14. Exciting careers blending engineering, science, and ecology

    E-Print Network [OSTI]

    Tullos, Desiree

    Exciting careers blending engineering, science, and ecology New Opportunities Making the world://bee.oregonstate.edu/ecoe Ecological Engineering is: · Ecosystem restoration and habitat design at multiple scales · Watershed · Phytoremediation and bioremediation · Industrial ecology · Constructed wetlands and tidal marshlands · Mitigation

  15. Excited States in Staggered Meson Propagators

    E-Print Network [OSTI]

    MILC Collaboration; C. Bernard; T. Burch; C. DeTar; Steven Gottlieb; E. B. Gregory; U. M. Heller; J. Osborn; R. Sugar; D. Toussaint

    2003-09-16T23:59:59.000Z

    We report on preliminary results from multi-particle fits to meson propagators with three flavors of light dynamical quarks. We are able to measure excited states in propagators with pion quantum numbers, which we interpret as the pion 2S state, and is evidence of locality of the action. In the a_0 (0^{++}) propagators we find evidence for excited states which are probably the expected decay channels, pi+eta and K+Kbar.

  16. Fast pulsed excitation wiggler or undulator

    DOE Patents [OSTI]

    van Steenbergen, Arie (Shoreham, NY)

    1990-01-01T23:59:59.000Z

    A fast pulsed excitation, electromagnetic undulator or wiggler, employing geometrically alternating substacks of thin laminations of ferromagnetic material, together with a single turn current loop excitation of the composite assembly, of such shape and configuration that intense, spatially alternating, magnetic fields are generated; for use as a pulsed mode undulator or wiggler radiator, for use in a Free Electron Laser (FEL) type radiation source or, for use in an Inverse Free Electron Laser (IFEL) charged particle accelerator.

  17. Laser Control of Desorption Through Selective Surface Excitation...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Control of Desorption Through Selective Surface Excitation. Laser Control of Desorption Through Selective Surface Excitation. Abstract: We review recent developments in controlling...

  18. University of Sheffield Sustainable Print Policy 2013

    E-Print Network [OSTI]

    Martin, Stephen John

    produced, print consumables used, the number of personal printing devices on campus. 3. It applies to all screen or via projection at meetings, use of personal devices such as laptop computers or tablets. 9 printing devices whether connected to the network, connected locally via desktop computing, photocopiers

  19. PAPILLON: Designing Curved Display Surfaces With Printed Optics

    E-Print Network [OSTI]

    Poupyrev, Ivan

    . It is based on 3D printed optics, where the surface of the display is constructed as a bundle of printed light Interfaces - Graphical user interfaces; Input devices and strategies. Keywords: 3D printing, fabrication

  20. E-print Network : Main View : Deep Federated Search

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    E-print Network Search Powered By Deep Web Technologies New Search Preferences E-print Network E-print Network Skip to main content FAQ * HELP * SITE MAP * CONTACT US Home * About...

  1. Organic and Printed Electronics for Biological Microfluidic Applications

    E-Print Network [OSTI]

    Jagannathan, Lakshmi

    2012-01-01T23:59:59.000Z

    and Q. Zhang, “Printed electronics for low-cost electronicUltra-Low-Cost Printed Electronics,” Ph.D. dissertation,capability of printed electronics to make important aspects

  2. Business Agreements Printing & Mail Services

    E-Print Network [OSTI]

    Business Agreements Storehouse Printing & Mail Services Receiving Equipment Management Director Planning/ Resource Planning Space ManagementAccounting Services Student Business Services Education Administration Finance and Business Operations Organization Risk Management Finance & Business Operations

  3. acquisition facilitates 3d: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Physics Websites Summary: measurements and finally its instantiation through 3D printing, are presented. Laser scanner acquisition, reconstruction and 3D printing lend well...

  4. asce structural division: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ABSTRACT Using modular construction equipment and additive manufacturing (3D printing) techniques large-scale 3D printing have been developed and tested in earth-based...

  5. automated 3-d voxel: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Websites Summary: from a real-life application. 1 Introduction Recent advances in 3D printing technology have made of materials, higher printing speeds, and lower costs....

  6. Printing a Car: A Team Effort in Innovation (Text Version) |...

    Broader source: Energy.gov (indexed) [DOE]

    video Printing a Car: A Team Effort in Innovation highlighting the demonstration of 3D printing to create a working electric vehicle, live during the International Manufacturing...

  7. advanced technologies directorate: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Directorate Geosciences Websites Summary: drew media attention and articles on 3D printing, including coverage by Popular Mechanics and website on 3D printing and prototyping...

  8. assess 3d bone: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Websites Summary: from a real-life application. 1 Introduction Recent advances in 3D printing technology have made of materials, higher printing speeds, and lower costs....

  9. asce divisions air: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ABSTRACT Using modular construction equipment and additive manufacturing (3D printing) techniques large-scale 3D printing have been developed and tested in earth-based...

  10. applying space technology: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Directorate Geosciences Websites Summary: drew media attention and articles on 3D printing, including coverage by Popular Mechanics and website on 3D printing and prototyping...

  11. assisted laser scanner: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    pipeline Physics Websites Summary: measurements and finally its instantiation through 3D printing, are presented. Laser scanner acquisition, reconstruction and 3D printing lend...

  12. antennarius striatus shaw: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sciences Websites Summary: 'real' and virtual). ART Decorative Arts Lharne Shaw, 3D Printing of Relief Forms onto Ceramic Tiles 3D printing of relief forms onto ceramic...

  13. aligned single wall: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Page Topic Index 1 Printed Multilayer Superstructures of Aligned Single-Walled Carbon Materials Science Websites Summary: Printed Multilayer Superstructures of Aligned...

  14. alara center alara: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Yamamoto Printed by: Hagadone Printing Company Photo: WaikikiINTERNATIONAL PACIFIC RESEARCH CENTER APRIL 2004-MARCH 2005 REPORT SCHOOL OF OCEAN AND EARTH . . . . . . . . . . ....

  15. Dispenser Printed Zinc Microbattery with an Ionic Liquid Gel Electrolyte

    E-Print Network [OSTI]

    Ho, Christine Chihfan

    2010-01-01T23:59:59.000Z

    using dispenser printing including (a) 3D polymer molds, (b)using dispenser printing including (a) 3D polymer molds, (b)

  16. 3D Printing in 30 Seconds | Department of Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3D Printing in 30 Seconds 3D Printing in 30 Seconds Addthis An error occurred. Unable to execute Javascript. Duration :38 Topic Science & Technology...

  17. Disposable Carbon Nanotube Modified Screen-Printed Biosensor...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Carbon Nanotube Modified Screen-Printed Biosensor for Amperometric Detection of Organophosphorus Pesticides and Nerve Disposable Carbon Nanotube Modified Screen-Printed Biosensor...

  18. Dispenser Printed Zinc Microbattery with an Ionic Liquid Gel Electrolyte

    E-Print Network [OSTI]

    Ho, Christine Chihfan

    2010-01-01T23:59:59.000Z

    Ink-jet printed carbon supercapacitor electrodes on gold,Ink-jet printed carbon supercapacitor electrodes on gold,Microcapacitors Thin film supercapacitor (TFSC) research has

  19. Voltammetric Analysis of Europium at Screen-Printed Electrodes...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Voltammetric Analysis of Europium at Screen-Printed Electrodes Modified with Salicylamide Self-Assembled on Mesoporous Silica. Voltammetric Analysis of Europium at Screen-Printed...

  20. Printing | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you wantJoin us for| Department of Energy Primus Power'sPrinting

  1. Excitation of Kaluza-Klein gravitational mode

    E-Print Network [OSTI]

    Kunihito Uzawa; Yoshiyuki Morisawa; Shinji Mukohyama

    2000-04-10T23:59:59.000Z

    We investigate excitation of Kaluza-Klein modes due to the parametric resonance caused by oscillation of radius of compactification. We consider a gravitational perturbation around a D-dimensional spacetime, which we compactify on a (D-4)-sphere to obtain a 4-dimensional theory. The perturbation includes the so-called Kaluza-Klein modes, which are massive in 4-dimension, as well as zero modes, which is massless in 4-dimension. These modes appear as scalar, vector and second-rank symmetric tensor fields in the 4-dimensional theory. Since Kaluza-Klein modes are troublesome in cosmology, quanta of these Kaluza-Klein modes should not be excited abundantly. However, if radius of compactification oscillates, then masses of Kaluza-Klein modes also oscillate and, thus, parametric resonance of Kaluza-Klein modes may occur to excite their quanta. In this paper we consider part of Kaluza-Klein modes which correspond to massive scalar fields in 4-dimension and investigate whether quanta of these modes are excited or not in the so called narrow resonance regime of the parametric resonance. We conclude that at least in the narrow resonance regime quanta of these modes are not excited so catastrophically.

  2. Excited state dynamics of liquid water: Insight from the dissociation reaction following two-photon excitation

    E-Print Network [OSTI]

    Elles, Christopher G.; Shkrob, Ilya A.; Crowell, Robert A.; Bradforth, Stephen E.

    2007-04-25T23:59:59.000Z

    V to ionization at 12.4eV. The two channels occur with similar yield for an excitation energy of 9.3eV. For the lowest excitation energy, the transient absorption at 267nm probes the geminate recombination kinetics of the H and OH fragments, providing a window...

  3. Collisional quenching of highly rotationally excited HF

    E-Print Network [OSTI]

    Yang, Benhui; Forrey, R C; Stancil, P C; Balakrishnan, N

    2015-01-01T23:59:59.000Z

    Collisional excitation rate coefficients play an important role in the dynamics of energy transfer in the interstellar medium. In particular, accurate rotational excitation rates are needed to interpret microwave and infrared observations of the interstellar gas for nonlocal thermodynamic equilibrium line formation. Theoretical cross sections and rate coefficients for collisional deexcitation of rotationally excited HF in the vibrational ground state are reported. The quantum-mechanical close-coupling approach implemented in the nonreactive scattering code MOLSCAT was applied in the cross section and rate coefficient calculations on an accurate 2D HF-He potential energy surface. Estimates of rate coefficients for H and H$_2$ colliders were obtained from the HF-He collisional data with a reduced-potential scaling approach. The calculation of state-to-state rotational quenching cross sections for HF due to He with initial rotational levels up to $j=20$ were performed for kinetic energies from 10$^{-5}$ to 15000...

  4. Charmonium excited state spectrum in lattice QCD

    SciTech Connect (OSTI)

    Jozef Dudek; Robert Edwards; Nilmani Mathur; David Richards

    2008-02-01T23:59:59.000Z

    Working with a large basis of covariant derivative-based meson interpolating fields we demonstrate the feasibility of reliably extracting multiple excited states using a variational method. The study is performed on quenched anisotropic lattices with clover quarks at the charm mass. We demonstrate how a knowledge of the continuum limit of a lattice interpolating field can give additional spin-assignment information, even at a single lattice spacing, via the overlap factors of interpolating field and state. Excited state masses are systematically high with respect to quark potential model predictions and, where they exist, experimental states. We conclude that this is most likely a result of the quenched approximation.

  5. Excited state contamination in nucleon structure calculations

    E-Print Network [OSTI]

    Jeremy Green; Stefan Krieg; John Negele; Andrew Pochinsky; Sergey Syritsyn

    2011-11-28T23:59:59.000Z

    Among the sources of systematic error in nucleon structure calculations is contamination from unwanted excited states. In order to measure this systematic error, we vary the operator insertion time and source-sink separation independently. We compute observables for three source-sink separations between 0.93 fm and 1.39 fm using clover-improved Wilson fermions and pion masses as low as 150 MeV. We explore the use of a two-state model fit to subtract off the contribution from excited states.

  6. FSU Office of Research Program in Interdisciplinary Computing (PIC) What is 3D printing?

    E-Print Network [OSTI]

    Ronquist, Fredrik

    (PIC) What is 3D printing? 3D printing is a process of making. 3D printing is distinct from traditional machining techniques, which mostly organs, meat, circuit boards and batteries. 3D printing impacts nearly every

  7. Improved e-Jet Printing -TFOT Improved e-Jet Printing

    E-Print Network [OSTI]

    Rogers, John A.

    Improved e-Jet Printing - TFOT Home Sections News Articles Forums About Us Improved e-Jet Printing at the University of Illinois have developed a technology that provides higher resolution and more versatility in e-jet printing. As opposed to conventional ink-jet printers, where heat or mechanical vibrations are used

  8. Hexadecapolar excitation in sup 100 Ru

    SciTech Connect (OSTI)

    Sirota, S.; Duarte, J.L.M.; Horodynski-Matsushigue, L.B.; Borello-Lewin, T. (Instituto de Fisica da Universidade de Sa Paulo, 01498 Sao Paulo, Brasil (BR))

    1989-09-01T23:59:59.000Z

    Attention is drawn to the strong collective {ital L}=4 direct excitation of the state at 2.367 MeV in {sup 100}Ru by inelastic scattering of 16 MeV protons characterized by a deformation parameter {beta}{sub 4}=0.10, one of the highest reported for any region of the mass table.

  9. Excitation energy of 9 Be Krzysztof Pachucki #

    E-Print Network [OSTI]

    Pachucki, Krzysztof

    Excitation energy of 9 Be Krzysztof Pachucki # Institute of Theoretical Physics, Warsaw University, Hoâ??za 69, 00­681 Warsaw, Poland Jacek Komasa + Quantum Chemistry Group, Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60­780 Poznaâ??n, Poland (Dated: March 31, 2006) Abstract The high

  10. Excitation system for rotating synchronous machines

    DOE Patents [OSTI]

    Umans, Stephen D. (Belmont, MA); Driscoll, David J. (South Euclid, OH)

    2002-01-01T23:59:59.000Z

    A system for providing DC current to a rotating superconducting winding is provided. The system receives current feedback from the superconducting winding and determines an error signal based on the current feedback and a reference signal. The system determines a control signal corresponding to the error signal and provides a positive and negative superconducting winding excitation voltage based on the control signal.

  11. CAN 3D PRINTING REVOLUTIONIZE GLOBAL MANUFACTURING? A DELPHI STUDY

    E-Print Network [OSTI]

    CAN 3D PRINTING REVOLUTIONIZE GLOBAL MANUFACTURING? A DELPHI STUDY ­ Master Thesis Proposal ­ BACKGROUND 3D printing (or additive manufacturing) is not an entirely new phenomenon. First introduced and president of Foxconn, calls it a nice "gimmick" and even Nick Allen, founder of 3D printing company 3D Print

  12. 3D Printing of Scintillating Materials

    E-Print Network [OSTI]

    Y. Mishnayot; M. Layani; I. Cooperstein; S. Magdassi; G. Ron

    2014-06-15T23:59:59.000Z

    We demonstrate, for the first time, the applicability of 3D printing technique to the manufacture of scintillation detectors. We report of a formulation, usable in stereolithographic printing, that exhibits scintillation efficiency on the order of 30\\% of that of commercial polystyrene based scintillators. We discuss the applicability of these techniques and propose future enhancements that will allow tailoring the printed scintillation detectors to various application.

  13. 3D Printing of Scintillating Materials

    E-Print Network [OSTI]

    Mishnayot, Y; Cooperstein, I; Magdassi, S; Ron, G

    2014-01-01T23:59:59.000Z

    We demonstrate, for the first time, the applicability of 3D printing technique to the manufacture of scintillation detectors. We report of a formulation, usable in stereolithographic printing, that exhibits scintillation efficiency on the order of 30\\% of that of commercial polystyrene based scintillators. We discuss the applicability of these techniques and propose future enhancements that will allow tailoring the printed scintillation detectors to various application.

  14. applying two-photon excitation: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of Kansas - KU ScholarWorks Summary: or gener- ate dangerous amounts of hydrogen gas in radioactive waste storage tanks.1 Radiolysis and photolysis experiments pro- vide a window...

  15. E-Print Network 3.0 - adsorbate excitation mechanism Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Collection: Chemistry ; Physics 66 Terahertz Time-Domain Spectroscopy Study of Silica Aerogels and Adsorbed Molecular Jiangquan Zhang and D. Grischkowsky* Summary: Terahertz...

  16. Electron-impact excitation of neutral oxygen

    E-Print Network [OSTI]

    P. S. Barklem

    2006-09-25T23:59:59.000Z

    Aims: To calculate transition rates from ground and excited states in neutral oxygen atoms due to electron collisions for non-LTE modelling of oxygen in late-type stellar atmospheres, thus enabling reliable interpretation of oxygen lines in stellar spectra. Methods: A 38-state R-matrix calculation in LS-coupling has been performed. Basis orbitals from the literature (Thomas et al.) are adopted, and a large set of configurations are included to obtain good representations of the target wavefunctions. Rate coefficients are calculated by averaging over a Maxwellian velocity distribution. Results: Estimates for the cross sections and rate coefficients are presented for transitions between the seven lowest LS states of neutral oxygen. The cross sections for excitation from the ground state compare well with existing experimental and recent theoretical results.

  17. RF Pulse Design for Parallel Excitation in Magnetic Resonance Imaging

    E-Print Network [OSTI]

    Liu, Yinan

    2012-07-16T23:59:59.000Z

    Parallel excitation is an emerging technique to improve or accelerate multi-dimensional spatially selective excitations in magnetic resonance imaging (MRI) using multi-channel transmit arrays. The technique has potential in many applications...

  18. Orientational relaxation and vibrational excitation transfer in methanolcarbon tetrachloride solutions

    E-Print Network [OSTI]

    Fayer, Michael D.

    Orientational relaxation and vibrational excitation transfer in methanol­carbon tetrachloride spectroscopy of the hydroxyl stretch of methanol in carbon tetrachloride solutions to study orientational excitation transfer. For concentrated methanol in carbon tetrachloride solu- tions, like those used

  19. Excitation of terahertz nanoantennas by Rabi waves

    SciTech Connect (OSTI)

    Slepyan, G. Ya.; Yerchak, Y. D.; Maksimenko, S. A. [Institute for Nuclear Problems, Belarus State University, Bobruiskaya 11, 220030 Minsk (Belarus); Hoffmann, A. [Institut fuer Festkoerperphysik, Technische Universitaet Berlin, Hardenbergstrasse 36, 10623 Berlin (Germany); Bass, F. G. [Department of Physics, Bar-Ilan University, 52900 Ramat-Gan (Israel)

    2011-10-03T23:59:59.000Z

    Theoretical model of quantum dot ring, strongly coupled with classical electromagnetic field, is developed. We demonstrate, that tunnel current in the QD-ring has low-frequency component, excited by Rabi waves, propagating into the ring, and the ring can be considered as a candidate for role of terahertz magnetic loop antenna. The low-frequency current is inspired by the asymmetry of electron tunneling.

  20. Dynamical analysis of highly excited molecular spectra

    SciTech Connect (OSTI)

    Kellman, M.E. [Univ. of Oregon, Eugene (United States)

    1993-12-01T23:59:59.000Z

    The goal of this program is new methods for analysis of spectra and dynamics of highly excited vibrational states of molecules. In these systems, strong mode coupling and anharmonicity give rise to complicated classical dynamics, and make the simple normal modes analysis unsatisfactory. New methods of spectral analysis, pattern recognition, and assignment are sought using techniques of nonlinear dynamics including bifurcation theory, phase space classification, and quantization of phase space structures. The emphasis is chaotic systems and systems with many degrees of freedom.

  1. Page | 1 Managed Print Project Outline Pull Printing

    E-Print Network [OSTI]

    Glasgow, University of

    by extending specialist printing facilities to all users. The principal drivers for the project are carbon. Estimates are: 40% reduction in CO2 (from 477,676kg to 286,857kg; 60% reduction in electricity usage from the completion of these initiatives. The UK government's introduction of the Carbon Reduction Commitments (CRC

  2. Excitation energy transfer in the photosystem I

    SciTech Connect (OSTI)

    Webber, Andrew N

    2012-09-25T23:59:59.000Z

    Photosystem I is a multimeric pigment protein complex in plants, green alage and cyanobacteria that functions in series with Photosystem II to use light energy to oxidize water and reduce carbon dioxide. The Photosystem I core complex contains 96 chlorophyll a molecules and 22 carotenoids that are involved in light harvesting and electron transfer. In eucaryotes, PSI also has a peripheral light harvesting complex I (LHCI). The role of specific chlorophylls in excitation and electron transfer are still unresolved. In particular, the role of so-called bridging chlorophylls, located between the bulk antenna and the core electron transfer chain, in the transfer of excitation energy to the reaction center are unknown. During the past funding period, site directed mutagenesis has been used to create mutants that effect the physical properties of these key chlorophylls, and to explore how this alters the function of the photosystem. Studying these mutants using ultrafast absorption spectroscopy has led to a better understanding of the process by which excitation energy is transferred from the antenna chlorophylls to the electron transfer chain chlorophylls, and what the role of connecting chlorophylls and A_0 chlorophylls is in this process. We have also used these mutants to investigate whch of the central group of six chlorophylls are involved in the primary steps of charge separation and electron transfer.

  3. Charge transfer excitations from excited state Hartree-Fock subsequent minimization scheme

    SciTech Connect (OSTI)

    Theophilou, Iris, E-mail: i.theophilou@fz-juelich.de [Peter Grunberg Institut (PGI) Forschungszentrum Jülich, D-52425 Jülich (Germany)] [Peter Grunberg Institut (PGI) Forschungszentrum Jülich, D-52425 Jülich (Germany); Tassi, M.; Thanos, S. [Institute for Advanced Materials, Physicochemical Processes, Nanotechnology and Microsystems, ‘Demokritos’ National Center for Scientific Research, 15310 Athens (Greece)] [Institute for Advanced Materials, Physicochemical Processes, Nanotechnology and Microsystems, ‘Demokritos’ National Center for Scientific Research, 15310 Athens (Greece)

    2014-04-28T23:59:59.000Z

    Photoinduced charge-transfer processes play a key role for novel photovoltaic phenomena and devices. Thus, the development of ab initio methods that allow for an accurate and computationally inexpensive treatment of charge-transfer excitations is a topic that nowadays attracts a lot of scientific attention. In this paper we extend an approach recently introduced for the description of single and double excitations [M. Tassi, I. Theophilou, and S. Thanos, Int. J. Quantum Chem. 113, 690 (2013); M. Tassi, I. Theophilou, and S. Thanos, J. Chem. Phys. 138, 124107 (2013)] to allow for the description of intermolecular charge-transfer excitations. We describe an excitation where an electron is transferred from a donor system to an acceptor one, keeping the excited state orthogonal to the ground state and avoiding variational collapse. These conditions are achieved by decomposing the space spanned by the Hartree-Fock (HF) ground state orbitals into four subspaces: The subspace spanned by the occupied orbitals that are localized in the region of the donor molecule, the corresponding for the acceptor ones and two more subspaces containing the virtual orbitals that are localized in the neighborhood of the donor and the acceptor, respectively. Next, we create a Slater determinant with a hole in the subspace of occupied orbitals of the donor and a particle in the virtual subspace of the acceptor. Subsequently we optimize both the hole and the particle by minimizing the HF energy functional in the corresponding subspaces. Finally, we test our approach by calculating the lowest charge-transfer excitation energies for a set of tetracyanoethylene-hydrocarbon complexes that have been used earlier as a test set for such kind of excitations.

  4. azulene: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in three different solvents: 1,1,1-trichloro-1,2,2-trifluoroethane, acetonitrile, and xenon. The solute molecule was vibrationally excited by the photo-excitation...

  5. anthracenes: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in three different solvents: 1,1,1-trichloro-1,2,2-trifluoroethane, acetonitrile, and xenon. The solute molecule was vibrationally excited by the photo-excitation...

  6. anthracene: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in three different solvents: 1,1,1-trichloro-1,2,2-trifluoroethane, acetonitrile, and xenon. The solute molecule was vibrationally excited by the photo-excitation...

  7. The photodissociation and reaction dynamics of vibrationally excited molecules

    SciTech Connect (OSTI)

    Crim, F.F. [Univ. of Wisconsin, Madison (United States)

    1993-12-01T23:59:59.000Z

    This research determines the nature of highly vibrationally excited molecules, their unimolecular reactions, and their photodissociation dynamics. The goal is to characterize vibrationally excited molecules and to exploit that understanding to discover and control their chemical pathways. Most recently the author has used a combination of vibrational overtone excitation and laser induced fluorescence both to characterize vibrationally excited molecules and to study their photodissociation dynamics. The author has also begun laser induced grating spectroscopy experiments designed to obtain the electronic absorption spectra of highly vibrationally excited molecules.

  8. Standoff alpha radiation detection via excited state absorption of air

    SciTech Connect (OSTI)

    Yao, Jimmy; Yin, Stuart Shizhuo [Department of Electrical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802 (United States)] [Department of Electrical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802 (United States); Brenizer, Jack [Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802 (United States)] [Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802 (United States); Hui, Rongqing [Department of Electrical Engineering and Computer Science, The University of Kansas, Lawrence, Kansas 66045 (United States)] [Department of Electrical Engineering and Computer Science, The University of Kansas, Lawrence, Kansas 66045 (United States)

    2013-06-24T23:59:59.000Z

    A standoff alpha radiation detection technique based on the physical mechanism of excited state absorption of air molecules was explored and is presented in this paper. Instead of directly detecting the radiation via measuring the intensity of radiation induced air fluorescence, the radiation is detected via the excited state absorption of alpha radiation excited/ionized air molecules. Both theoretical analyses and experimental verifications were conducted. The experimental results confirmed that the radiation could be detected via excited state absorption of radiation excited/ionized air molecules at a 10 m standoff distance, which was consistent with the theoretical analyses.

  9. Standards for Electronic and Print Communications DEFINITIONS

    E-Print Network [OSTI]

    , announcements, etc. Publications via electronic media (e.g. University Home Page items on the World Wide Web the wide range of print and electronic correspondence, research and other funding proposals, business forms, and various other print or word processed vehicles that are intrinsic to the everyday functioning of offices

  10. Mentoring Agreement Form Printed Name of

    E-Print Network [OSTI]

    Edwards, Paul N.

    Mentoring Agreement Form Printed Name of Student Mentee Term of Graduation Student ID Date Student email address Signature of Mentee Printed Name of Faculty Mentor Signature of Faculty Mentor Students are responsible for requesting appointments with mentors at least once each semester

  11. Poster Printing on Esmeralda GENERAL INFORMATION

    E-Print Network [OSTI]

    Ahlers, Guenter

    Poster Printing on Esmeralda 6.18.14 GENERAL INFORMATION · Location o The poster printer is located Poster Printer (HP Designjet z6100) [Esmeralda] DesignJet printer should be on. If red light is glowing PowerPoint file o From the File menu, choose Print. o Select Printer name: Esmeralda Direct o Click

  12. Content-adaptive Lenticular Prints James Tompkin

    E-Print Network [OSTI]

    Kautz, Jan

    to fixed-size lens arrays. We demonstrate our tech- nique using rendered simulations and by 3D printing.1 [Computer Graphics]: Hardware Architec- ture --Three-dimensional displays; Keywords: Lenticular displays, 3D printing. Links: DL PDF WEB 1 Introduction Displays that provide the illusion of three dimensions have

  13. Carbene reactions produced by recoil excitation methods 

    E-Print Network [OSTI]

    Lowery, Kirby

    1968-01-01T23:59:59.000Z

    ~ CTC1 + HC1 (2) The CTC1 once formed was shown to react with olefins to produce tri- tium-labeled chlorocyclopropanes. For instance, in the case of CTC1 reacting with ethylene, monochlorocyclopropane-t is formed as shown: /6, CTC1 + H O'=CH2 ~ H2C...) Ma&or Subject 1968 (year) Che !is try CARBENE REACTIONS PRODUCED BY RECOIL EXCITATION METHODS A Thesis by Kirby Lowery, Jr. Approved as to style and content by: (Head of Department) (Memb er ) (iMember ) (Member) (iM err:b e r ) (Member...

  14. Collective Excitations in Electron-Hole Bilayers

    SciTech Connect (OSTI)

    Kalman, G. J. [Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467 (United States); Hartmann, P.; Donko, Z. [Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, P.O. Box 49, H-1525 Budapest (Hungary); Golden, K. I. [Department of Mathematics and Statistics and Department of Physics, University of Vermont, Burlington, Vermont 05401 (United States)

    2007-06-08T23:59:59.000Z

    We report a combined analytic and molecular dynamics analysis of the collective mode spectrum of a bipolar (electron-hole) bilayer in the strong coupling classical limit. A robust, isotropic energy gap is identified in the out-of-phase spectra, generated by the combined effect of correlations and of the excitation of the bound dipoles. In the in-phase spectra we identify longitudinal and transverse acoustic modes wholly maintained by correlations. Strong nonlinear generation of higher harmonics of the fundamental dipole oscillation frequency and the transfer of harmonics between different modes is observed.

  15. Carbene reactions produced by recoil excitation methods

    E-Print Network [OSTI]

    Lowery, Kirby

    1968-01-01T23:59:59.000Z

    of a very electronegative fluorine atom and a double bond with high electron density. In the case of its trans- counterpart, these rwo effects roughly cancel out each other due to its more balanced geom- Sample No Gas Pressure cm Hg TkRK I I I...) (month) 1968 (year) ABSTRACT Carbene Reactions Produced by Recoil Excitation Methods. (August 1968) Kirby Lowery, Jr. , B. S. , Stephen F. Austin State College; Directed by: Dr. Yi-Noo Tang Using the separation technique of radio-gas chromatography...

  16. Universality of plasmon excitations in Dirac semimetals

    E-Print Network [OSTI]

    Dmitri E. Kharzeev; Robert D. Pisarski; Ho-Ung Yee

    2014-12-18T23:59:59.000Z

    The recent experimental discovery of ${\\rm Cd_3 As_2}$ and ${\\rm Na_3 Bi}$ Dirac semimetals enables the study of the properties of chiral quasi-particles in three spatial dimensions. As demonstrated by photoemission, Dirac semimetals are characterized by a linear dispersion relation for fermion quasi-particles, and thus represent three dimensional analogs of graphene. While the distinctive behavior of chiral fermions (e.g. Klein tunneling) is already evident in two dimensional graphene, the physics of chirality in three dimensions opens a number of new possibilities. In this paper we investigate the properties of the collective plasmon excitations in Dirac semimetals by using the methods of relativistic field theory. We find a strong and narrow plasmon excitation whose frequency is in the terahertz (THz) range which may be important for practical applications. The properties of the plasmon appear universal for all Dirac semimetals, due to the large degeneracy of the quasi-particles and the small Fermi velocity, $v_F \\ll c$. This universality is closely analogous to the phenomenon of "dimensional transmutation", that is responsible for the emergence of dimensionful scales in relativistic field theories such as Quantum Chromodynamics, the modern theory of nuclear physics.

  17. Plasmon excitations in homogeneous neutron star matter

    E-Print Network [OSTI]

    Marcello Baldo; Camille Ducoin

    2009-07-01T23:59:59.000Z

    We study the possible collective plasma modes which can affect neutron-star thermodynamics and different elementary processes in the baryonic density range between nuclear saturation ($\\rho_0$) and $3\\rho_0$. In this region, the expected constituents of neutron-star matter are mainly neutrons, protons, electrons and muons ($npe\\mu$ matter), under the constraint of beta equilibrium. The elementary plasma excitations of the $pe\\mu$ three-fluid medium are studied in the RPA framework. We emphasize the relevance of the Coulomb interaction among the three species, in particular the interplay of the electron and muon screening in suppressing the possible proton plasma mode, which is converted into a sound-like mode. The Coulomb interaction alone is able to produce a variety of excitation branches and the full spectral function shows a rich structure at different energy. The genuine plasmon mode is pushed at high energy and it contains mainly an electron component with a substantial muon component, which increases with density. The plasmon is undamped for not too large momentum and is expected to be hardly affected by the nuclear interaction. All the other branches, which fall below the plasmon, are damped or over-damped.

  18. Dual excitation acoustic paramagnetic logging tool

    DOE Patents [OSTI]

    Vail, III, William B. (Bothell, WA)

    1989-01-01T23:59:59.000Z

    New methods and apparatus are disclosed which allow measurement of the presence of oil and water in gelogical formations using a new physical effect called the Acoustic Paramagnetic Logging Effect (APLE). The presence of petroleum in formation causes a slight increase in the earth's magnetic field in the vicinity of the reservoir. This is the phenomena of paramagnetism. Application of an acoustic source to a geological formation at the Larmor frequency of the nucleous present causes the paramagnetism of the formation to disappear. This results in a decrease in the earth's magnetic field in the vicinity of the oil bearing formation. Repetitively frequency sweeping the acoustic source through the Larmor frequency of the nucleons present (approx. 2 kHz) causes an amplitude modulation of the earth's magnetic field which is a consequence of the APLE. The amplitude modulation of the earth's magnetic field is measured with an induction coil gradiometer and provides a direct measure of the amount of oil and water in the excitation zone of the formation. The phase of the signal is used to infer the longitudinal relaxation times of the fluids present, which results in the ability in general to separate oil and water and to measure the viscosity of the oil present. Such measurements may be preformed in open boreholes and in cased well bores. The Dual Excitation Acoustic Paramagnetic Logging Tool employing two acoustic sources is also described.

  19. Dual excitation acoustic paramagnetic logging tool

    DOE Patents [OSTI]

    Vail, W.B. III.

    1989-02-14T23:59:59.000Z

    New methods and apparatus are disclosed which allow measurement of the presence of oil and water in geological formations using a new physical effect called the Acoustic Paramagnetic Logging Effect (APLE). The presence of petroleum in formation causes a slight increase in the earth's magnetic field in the vicinity of the reservoir. This is the phenomena of paramagnetism. Application of an acoustic source to a geological formation at the Larmor frequency of the nucleons present causes the paramagnetism of the formation to disappear. This results in a decrease in the earth's magnetic field in the vicinity of the oil bearing formation. Repetitively frequency sweeping the acoustic source through the Larmor frequency of the nucleons present (approx. 2 kHz) causes an amplitude modulation of the earth's magnetic field which is a consequence of the APLE. The amplitude modulation of the earth's magnetic field is measured with an induction coil gradiometer and provides a direct measure of the amount of oil and water in the excitation zone of the formation. The phase of the signal is used to infer the longitudinal relaxation times of the fluids present, which results in the ability in general to separate oil and water and to measure the viscosity of the oil present. Such measurements may be performed in open boreholes and in cased well bores. The Dual Excitation Acoustic Paramagnetic Logging Tool employing two acoustic sources is also described. 6 figs.

  20. Heat sinking for printed circuitry

    DOE Patents [OSTI]

    Wilson, S.K.; Richardson, G.; Pinkerton, A.L.

    1984-09-11T23:59:59.000Z

    A flat pak or other solid-state device mounted on a printed circuit board directly over a hole extends therethrough so that the bottom of the pak or device extends beyond the bottom of the circuit board. A heat sink disposed beneath the circuit board contacts the bottom of the pak or device and provides direct heat sinking thereto. Pressure may be applied to the top of the pak or device to assure good mechanical and thermal contact with the heat sink.

  1. Laser-induced nonresonant nuclear excitation in muonic atoms

    E-Print Network [OSTI]

    A. Shahbaz; C. Müller; T. J. Buervenich; C. H. Keitel

    2008-12-13T23:59:59.000Z

    Coherent nuclear excitation in strongly laser-driven muonic atoms is calculated. The nuclear transition is caused by the time-dependent Coulomb field of the oscillating charge density of the bound muon. A closed-form analytical expression for electric multipole transitions is derived and applied to various isotopes; the excitation probabilities are in general very small. We compare the process with other nuclear excitation mechanisms through coupling with atomic shells and discuss the prospects to observe it in experiment.

  2. Gas cushion control of OVJP print head position

    DOE Patents [OSTI]

    Forrest, Stephen R

    2014-10-07T23:59:59.000Z

    An OVJP apparatus and method for applying organic vapor or other flowable material to a substrate using a printing head mechanism in which the print head spacing from the substrate is controllable using a cushion of air or other gas applied between the print head and substrate. The print head is mounted for translational movement towards and away from the substrate and is biased toward the substrate by springs or other means. A gas cushion feed assembly supplies a gas under pressure between the print head and substrate which opposes the biasing of the print head toward the substrate so as to form a space between the print head and substrate. By controlling the pressure of gas supplied, the print head separation from the substrate can be precisely controlled.

  3. eSales Interactive Mapping -Viewing and Printing Introduction

    E-Print Network [OSTI]

    eSales Interactive Mapping - Viewing and Printing Introduction Our eSales system includes an integrated interactive map facility. This allows you to view and print maps for all lots on offer. Various

  4. advanced packaging technology: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    David Smukowski, Sensors in Motion Embedded Actuation and Sensing Via Multi-Material 3D Printing.m. 3D Printing Multi-Functionality: Mec Materials for 2.5D and 3D Packaging Systems...

  5. advanced packaging technologies: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    David Smukowski, Sensors in Motion Embedded Actuation and Sensing Via Multi-Material 3D Printing.m. 3D Printing Multi-Functionality: Mec Materials for 2.5D and 3D Packaging Systems...

  6. actinobacillus pleuropneumonia part: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a 3D...

  7. abnormal 3-d mri: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a 3D...

  8. axial 3-d pet: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a 3D...

  9. advanced electronic packages: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    David Smukowski, Sensors in Motion Embedded Actuation and Sensing Via Multi-Material 3D Printing.m. 3D Printing Multi-Functionality: Mec Materials for 2.5D and 3D Packaging Systems...

  10. antimyosin fab imaging: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    simultaneously. Testing procedures: Demonstrate de Lijser, Peter 14 TCAUP FabLab 3D PRINTING ORDER FORM Engineering Websites Summary: TCAUP FabLab 3D PRINTING ORDER FORM: UNIQ...

  11. auslese von 3d: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a 3D...

  12. aeneus fab larvae: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    simultaneously. Testing procedures: Demonstrate de Lijser, Peter 18 TCAUP FabLab 3D PRINTING ORDER FORM Engineering Websites Summary: TCAUP FabLab 3D PRINTING ORDER FORM: UNIQ...

  13. anthropomorphic models pt: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    -driven, anthropomorphic robotic hand. The prototyping process makes the most of 3D printing technology, and takes@cs.washington.edu Fig. 1. The 3D-printed 20-DOF...

  14. autostereoscopic 3d display: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    or restrict themselves to light dif- fusion in volumes. We use multi-material 3D printing to fabricate objects Additional Key Words and Phrases: 3D printing, optical fibers...

  15. Characterizing tensile loading responses of 3D printed samples

    E-Print Network [OSTI]

    Haid, Christopher M

    2014-01-01T23:59:59.000Z

    An experimental study was performed to characterize the loading response of samples manufactured through 3D printing. Tensile testing was performed on a number of 3D printed samples created through Fused Filament Fabrication ...

  16. Mechanical testing of rapid-prototyping refractory ceramic print media

    E-Print Network [OSTI]

    Martin, Rachel (Rachel M.)

    2013-01-01T23:59:59.000Z

    Additively manufactured (3D-printed) refractory alumina-silica ceramics were mechanically tested to ascertain their ultimate tensile strengths and observed to determine their dimensional consistency over the printing and ...

  17. aperture radar 3d: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    study was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a...

  18. accuracy 3d quantum: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    study was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a...

  19. Three-dimensionally printed biological machines powered by skeletal muscle

    E-Print Network [OSTI]

    Bashir, Rashid

    in animals, as a con- tractile power source. Here, we report the development of 3D printed hydrogel "bio-bots were optimized using stereolithographic 3D printing, and the ef- fect of collagen I and fibrin

  20. Reactive binders for metal parts produced by Three Dimensional Printing

    E-Print Network [OSTI]

    Yoo, Helen Jean

    1997-01-01T23:59:59.000Z

    Three Dimensional Printing (3DP) is a solid free form fabrication process which enables the construction of parts directly from computer-aided design (CAD) models. In the current process, metal parts are produced by printing ...

  1. Selective laser excitation of oriented molecules in polymer matrices

    SciTech Connect (OSTI)

    Nekrasov, V.V.; Nurmukhametov, R.N.; Starukhin, A.S.; Stanishevskii, I.V.; Shigorin, D.N.; Shul'ga, A.M.

    1987-06-01T23:59:59.000Z

    The features of the fine-structure spectra and polarization fluorescence were studied in selective laser excitation of molecules imbedded in orienting polyethylene (PE) films in this article. Hydroxy derivatives of 9,10-anthraquinone, naphthoquinone, thioindigo and some porphyrins were investigated. The studies were conducted at a temperature of 4.2 K on a DFS-24 spectrometer. Fluorescence was excited by radiation from a tunable dye laser in the region of the purely electron transition. The halfwidth of the exciting laser line was approximately 1 A. The compounds studied exhibit emission band spectra even at 4.2 K with normal excitation in the PE matrices.

  2. Excitation-emission spectra and fluorescence quantum yields for...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    vapor in air saturated with water vapor. Absorption and excitation-emission matrix (EEM) spectra of aqueous extracts of aged and control SOA samples were measured, and the...

  3. 1 18 June 2009 Thermal excitation of large charge offsets

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 18 June 2009 Thermal excitation of large charge offsets in a single-Cooper-pair transistor L.R.Simkins

  4. Resonant excitation and photon entanglement from semiconductor quantum dots

    E-Print Network [OSTI]

    Ana Predojevi?

    2015-03-01T23:59:59.000Z

    In this chapter we review the use of semiconductor quantum dots as sources of quantum light. Principally, we focus on resonant two-photon excitation, which is a method that allows for on-demand generation of photon pairs. We explore the advantages of resonant excitation and present a number of measurements that were made in this excitation regime. In particular, we cover the following topics: photon statistics, coherent manipulation of the ground-excited state superposition, and generation of time-bin entangled photon pairs.

  5. author research productivity: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2007 -Forest industry production Authorities Renewable Energy Websites Summary: FINLAND SOURCES 2007 - Forest industry production Print Home Finland Government Authorities...

  6. archipelago sea finland: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2007 -Forest industry production Authorities Renewable Energy Websites Summary: FINLAND SOURCES 2007 - Forest industry production Print Home Finland Government Authorities...

  7. acid hydrogel carrying: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Materials Science Websites Summary: Keywords: Mesenchymal stem cells Microcontact printing Microenvironment Differentiation Polyacrylamide by studying cells adherent to...

  8. WIDEBAND SLOT AND PRINTED ANTENNAS ATEF Z. ELSHERBENI

    E-Print Network [OSTI]

    Elsherbeni, Atef Z.

    with tuning stubs, bowtie slot antennas with tapered tuning stubs, and microstrip-fed printed bowtie antennas

  9. A digital excitation control system for use on brushless excited synchronous generators

    SciTech Connect (OSTI)

    Godhwani, A. [Southern Illinois Univ., Edwardsville, IL (United States)] [Southern Illinois Univ., Edwardsville, IL (United States); Basler, M.J. [Basler Electric Co., Highland, IL (United States)] [Basler Electric Co., Highland, IL (United States)

    1996-09-01T23:59:59.000Z

    Automatic voltage regulators for small to medium size brushless excited synchronous generators have traditionally utilized analog electronics. Modern voltage regulator systems are beginning to utilize the power, flexibility, and cost advantage of the microprocessor for control. Furthermore, digital voltage regulators have the added advantage of ease of compensator custom-design. This paper presents a new method for determining the stability parameters for small/medium size generators that have limited effect on overall system stability. A Digital Excitation Control System (DECS) is used as a platform for this discussion. DECS utilizes a discrete Proportional, Integral and Derivative (PID) control algorithm. A direct design (Pole Placement) method for selecting PID parameters is presented along with the test results.

  10. A QuickStart Guide to printing a

    E-Print Network [OSTI]

    A QuickStart Guide to printing a 3D model starting from a block of bytes Bridget CarragherStart Guide to printing a 3D model starting from a block of bytes This is currently a three step process. (1 and selecting a new size (of 3 inches for example). Once you have done this, choose Print from the File menu

  11. 3D Printing of Functional and Biological Materials

    E-Print Network [OSTI]

    ! 3D Printing of Functional and Biological Materials Jennifer A. Lewis Wyss Professor)! Multimaterial 3D printing ! #12;3D antennas! Li ion microbatteries! Lightweight microlattices!Flexible sensors! 3D Printing of Integrated Electronic Devices ! #12;20 nm average , 5 ­ 50 nm

  12. A quality map of transfer printing Matthew B. Tucker,1

    E-Print Network [OSTI]

    Li, Teng

    - nique to enable a low-cost and scalable roll-to-roll printing process of flexible devices.13­19 Although printing toward a roll-to-roll printing process of flexible devices hinges upon the understanding be fabricated on compliant organic substrates polymers, elastomers , result- ing in lightweight, rugged

  13. PrintCentreContact the Print Centre for assistance with all your document needs.

    E-Print Network [OSTI]

    Brownstone, Rob

    PrintCentreContact the Print Centre for assistance with all your document needs. Dalhousie We-campus deliveries · Management program for campus multifunction devices (MFDs) We also offer printer and copier Science (BCSc), Bachelor of Informatics (BInf), Bachelor of Management (BMgt) and Bachelor of Science (BSc

  14. Understanding and developing capabilities for large area and continuous micro contact printing

    E-Print Network [OSTI]

    Goel, Ambika

    2007-01-01T23:59:59.000Z

    Micro contact printing is a high spatial resolution-patterning tool that can be used for printing on large and non-planar surfaces because of which it has begun to find important applications in printed organic electronics ...

  15. Print-and-Peel Fabrication for Microfluidics: What’s in it for Biomedical Applications?

    E-Print Network [OSTI]

    Thomas, Marlon S.; Millare, Brent; Clift, Joseph M.; Bao, Duoduo; Hong, Connie; Vullev, Valentine I.

    2010-01-01T23:59:59.000Z

    of direct three-dimensional (3D) printing of masters using ahave the capability for 3D printing, and hence, for directly3D elements allow for achieving fea- tures, demonstrated with solid-object printing,

  16. Print-and-Peel Fabrication for Microfluidics: What’s in it for Biomedical Applications?

    E-Print Network [OSTI]

    Thomas, Marlon S.; Millare, Brent; Clift, Joseph M.; Bao, Duoduo; Hong, Connie; Vullev, Valentine I.

    2010-01-01T23:59:59.000Z

    have the capability for 3D printing, and hence, for directlyof direct three-dimensional (3D) printing of masters using a3D elements allow for achieving fea- tures, demonstrated with solid-object printing,

  17. School of Art & Design 3D Printing of Relief Forms onto Ceramic Tiles

    E-Print Network [OSTI]

    Evans, Paul

    School of Art & Design 3D Printing of Relief Forms onto Ceramic Tiles Lead: Lharne Shaw 3D printing tile production. It will also assess the feasibility of introducing a 3D slip printing system into both

  18. Improvement of 3D Printing Resolution by the Development of Shrinkable Materials

    E-Print Network [OSTI]

    Chia, Helena

    2014-01-01T23:59:59.000Z

    learned a lot about 3D printing and myself in this processderived microstructures by 3D printing: bio-and structuralScaffold development using 3D printing with a starch-based

  19. Evaluation of PC-ISO for customized, 3D printed, gynecologic 192Ir HDR brachytherapy applicators

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    A, Iuliano L, Violante MG. 3D printing technique applied toTengg-Kobligk H, et al. 3D printing based on imaging data:biocompatible, sterilizable 3D printing material, and its

  20. Improvement of 3D Printing Resolution by the Development of Shrinkable Materials

    E-Print Network [OSTI]

    Chia, Helena

    2014-01-01T23:59:59.000Z

    derived microstructures by 3D printing: bio-and structuralScaffold development using 3D printing with a starch-basedderived microstructures by 3D printing: bio-and structural

  1. In Situ X-Ray Scattering Helps Optimize Printed Solar Cells

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    In Situ X-Ray Scattering Helps Optimize Printed Solar Cells In Situ X-Ray Scattering Helps Optimize Printed Solar Cells Print Wednesday, 25 February 2015 00:00 Plastic solar cells...

  2. An improved selective excitation double Mossbauer spectrometer J. van Lieropa)

    E-Print Network [OSTI]

    Ryan, Dominic

    An improved selective excitation double Mo¨ssbauer spectrometer J. van Lieropa) and D. H. Ryan, operation and performance of a selective excitation double Mo¨ssbauer SEDM spectrometer are described circuitry together with Wissel Mo¨ssbauer velocity transducers and electronics supplies energy

  3. Vortex phase-jitter in acoustically excited bluff body flames

    E-Print Network [OSTI]

    Lieuwen, Timothy C.

    Vortex phase-jitter in acoustically excited bluff body flames Santosh J. Shanbhogue, Michael disturbances. Phase locked particle image velocimetry was carried out over a range of conditions", manifested as cycle-to-cycle variation in flame and vorticity field at the same excitation phase. Phase

  4. Autoresonant Excitation of Antiproton Plasmas G. B. Andresen,1

    E-Print Network [OSTI]

    Fajans, Joel

    can become phase locked to the drive; when this happens, the oscillator's amplitude can be controlledAutoresonant Excitation of Antiproton Plasmas G. B. Andresen,1 M. D. Ashkezari,2 M. Baquero-Ruiz,3 November 2010; published 14 January 2011) We demonstrate controllable excitation of the center

  5. Excitation and control of multi-phase periodic waves in

    E-Print Network [OSTI]

    Fominov, Yakov

    the phase of the excited wave by the driver ("phase-locking") control the wave by varying parametersExcitation and control of multi-phase periodic waves in sine-Gordon equation Arkadiy Shagalovµcr U ()eff U ()eff Threshold condition for phase-locking: µ > µcr = 0.41 > cr = 3.28 3/2 0m 3

  6. Double beta decay to the excited states: experimental review

    E-Print Network [OSTI]

    A. S. Barabash

    2007-10-11T23:59:59.000Z

    A brief review on double beta decay to excited states of daughter nuclei is given. The ECEC(ov) transision to the excited states are discussed in association with a possible enhancement of the decay rate by several orders of magnitude.

  7. Crawling Waves from Radiation Force Excitation ZAEGYOO HAH,1

    E-Print Network [OSTI]

    Parker, Kevin J.

    Crawling Waves from Radiation Force Excitation ZAEGYOO HAH,1 CHRISTOPHER HAZARD,2 YOUNG THUNG CHO1 from focused beams that produce radiation force excitation within the tissue. Some examples are also radiofrequency ablated hepatic lesions in vitro 6,7 to characterize human skeletal muscle in vivo 8, 9

  8. Model Predictive Control For Wind Excited Buildings: A Benchmark Problem

    E-Print Network [OSTI]

    Kareem, Ahsan

    control force; W is the wind excitation vector of dimension 24; and are control output vec- tor , , , , , , , and were given by Yang et al (1999) and have appropriate dimensions. The wind force data acting1 Model Predictive Control For Wind Excited Buildings: A Benchmark Problem Gang Mei, Student M

  9. Coordination of Excitation and Governing Control Based on Fuzzy Logic

    E-Print Network [OSTI]

    its security limit. The issue of power system stability is becoming more crucial. The excitation, Transient stability, Fuzzy logic, Excitation and governing control. 1. Introduction Power system stability, Tsinghua University, China Abstract: In deregulated power systems, competition could push the system near

  10. Elementary excitations of liquid 4 He in aerogel

    E-Print Network [OSTI]

    Glyde, Henry R.

    Elementary excitations of liquid 4 He in aerogel O. Plantevin and B. Fa°k Commissariat a` l-roton excitations of liquid 4 He immersed in aerogel of 95% porosity have been measured using inelastic neutron.25 K. Aerogel grown with deuterated materials not exposed to air was used and measure- ments in bulk

  11. Observation of Bogoliubov excitations in exciton-polariton condensates

    E-Print Network [OSTI]

    Loss, Daniel

    LETTERS Observation of Bogoliubov excitations in exciton-polariton condensates S. UTSUNOMIYA1 predicted the occurrence of Bose­Einstein condensation (BEC) in an ideal gas of non-interacting bosonic Bose condensed system was developed by Bogoliubov in 1947, which predicted the phonon-like excitation

  12. Experimental Investigation of Excited-State Lifetimes in Atomic Ytterbium

    SciTech Connect (OSTI)

    Bowers, C.J.; Budker, D.; Commins, E.D.; DeMille, D.; Freedman, S.J.; Nguyen, A.-T.; Shang, S.-Q.; /UC, Berkeley; Zolotorev, M.; /SLAC

    2011-11-15T23:59:59.000Z

    Lifetimes of 21 excited states in atomic Yb were measured using time-resolved fluorescence detection following pulsed laser excitation. The lifetime of the 4f{sup 14}5d6s {sup 3}D{sub 1} state, which is of particular importance for a proposed study of parity nonconservation in atoms, was measured to be 380(30) ns.

  13. amoxicillin: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to carefully balance potential risks Ral J. Andrade; Paul M. Tulkens 14 Printed in Croatia CiteSeer Summary: The incidence of Salmonella in dogs was investigated to assess the...

  14. albumen: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1840-1895. Bibliography: p. 1. Photography--Printing processes. 2. Albumen James M. Reilly; For Linda; James M; Henry Peach Robinson 1840-01-01 5 TheJournalofExperimentalBiology...

  15. Digital imaging tracing technology for print media

    E-Print Network [OSTI]

    Milne, Stewart William

    1997-01-01T23:59:59.000Z

    This thesis examines and analyzes the existing state of digital technology use in print media and the attitudes of those using the technology to develop a technology that would help prevent the unethical manipulation of images in mass media...

  16. arkansas: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conversations with volunteer amateur radio operators, members of the print and broadcast media in Ft. Smith to the U.S. Congress, to local government officials in Ft. Smith and...

  17. Printed on recycled paper. 2013 Cornell Waste

    E-Print Network [OSTI]

    Chen, Tsuhan

    management by focusing University resources and capabilities on this pressing economic, environmental of waste generation and composition, waste reduction, risk management, environmental equity and publicPrinted on recycled paper. 2013 Cornell Waste Management Institute CWMI is a program

  18. Spectroscopy and reactions of vibrationally excited transient molecules

    SciTech Connect (OSTI)

    Dai, H.L. [Univ. of Pennsylvania, Philadelphia (United States)

    1993-12-01T23:59:59.000Z

    Spectroscopy, energy transfer and reactions of vibrationally excited transient molecules are studied through a combination of laser-based excitation techniques and efficient detection of emission from the energized molecules with frequency and time resolution. Specifically, a Time-resolved Fourier Transform Emission Spectroscopy technique has been developed for detecting dispersed laser-induced fluorescence in the IR, visible and UV regions. The structure and spectroscopy of the excited vibrational levels in the electronic ground state, as well as energy relaxation and reactions induced by specific vibronic excitations of a transient molecule can be characterized from time-resolved dispersed fluorescence in the visible and UV region. IR emissions from highly vibrational excited levels, on the other hand, reveal the pathways and rates of collision induced vibrational energy transfer.

  19. Excitation Theory for Space-Dispersive Active Media Waveguides

    E-Print Network [OSTI]

    Barybin, A A

    1999-01-01T23:59:59.000Z

    A unified electrodynamic approach to the guided-wave excitation theory is generalized to the waveguiding structures containing a hypothetical space-dispersive medium with drifting charge carriers possessing simultaneously elastic, piezoelectric and magnetic properties. Substantial features of our electrodynamic approach are: (i) the allowance for medium losses and (ii) the separation of potential fields peculiar to the slow quasi-static waves. It is shown that the orthogonal complementary fields appearing inside the external source region are just associated with a contribution of the potential fields inherent in exciting sources. Taking account of medium losses converts the usual orthogonality relation into a novel form called the quasi-orthogonality relation. It is found that the separation of potential fields reveals the fine structure of interaction between the exciting sources and mode eigenfields: in addition to the exciting currents interacting with the curl fields, the exciting charges and the double ...

  20. Excitation of the Morse oscillator by an ultrashort chirped pulse

    SciTech Connect (OSTI)

    Astapenko, V. A., E-mail: astval@mail.ru; Romadanovskii, M. S. [Moscow Institute of Physics and Technology (Russian Federation)

    2010-03-15T23:59:59.000Z

    The excitation of the classic Morse oscillator by an ultrashort electromagnetic pulse with a linear frequency chirp is studied theoretically. Formulas are derived for the oscillation amplitude and the radiation power averaged over a period as functions of the excitation energy for free oscillations of the Morse oscillator. Analytical expressions for describing the oscillator motion after the end of the pulse are obtained in the harmonic limit. In the general case of arbitrary parameters of the problem, the specific features of an excited Morse oscillator are analyzed numerically. Prominence is given to the effect of chirp on the excitation energy. The consideration is performed in terms of dimensionless variables, which makes it possible to apply the results obtained to a wide range of molecular systems and exciting-pulse parameters.

  1. Review: 3D Printing: Social and Cultural Trajectories Symposium -3D Printing Industry http://3dprintingindustry.com/2013/12/11/review-3d-printing-social-cultural-trajectories-symposium/[12/12/2013 11:25:00 AM

    E-Print Network [OSTI]

    Review: 3D Printing: Social and Cultural Trajectories Symposium - 3D Printing Industry http://3dprintingindustry.com/2013/12/11/review-3d-printing-social-cultural-trajectories-symposium/[12/12/2013 11:25:00 AM] Review: 3D Printing: Social and Cultural Trajectories Symposium BY ANGELA DALY & DARCY ALLEN ON WED

  2. Printed Name: Page 1 of 6

    E-Print Network [OSTI]

    Walba, David

    print your name on each page of the exam. H He Li Be B C N O F Na Mg Al Si P S Ne Cl Ar Br I 1 2 3 4 5 6Printed Name: Page 1 of 6 CHEM 3311-100, Fall 2013 Professor Walba First Hour Exam September 24: ________________________________ Recitation day and time: _____________________________ This is a closed-book exam. The use of notes

  3. Printed Name: Page 1 of 7

    E-Print Network [OSTI]

    Walba, David

    print your name on each page of the exam. H He Li Be B C N O F Na Mg Al Si P S Ne Cl Ar Br I 1 2 3 4 5 6Printed Name: Page 1 of 7 CHEM 3311-100, Fall 2013 Professor Walba Second Hour Exam October 22: ________________________________ Recitation day and time: _____________________________ This is a closed-book exam. The use of notes

  4. Printed Name: Page 1 of 8

    E-Print Network [OSTI]

    Walba, David

    print your name on each page of the exam. H He Li Be B C N O F Na Mg Al Si P S Ne Cl Ar Br I 1 2 3 4 5 6Printed Name: Page 1 of 8 CHEM 3311-100, Fall 2013 Professor Walba Third Hour Exam November 19: ________________________________ Recitation day and time: _____________________________ This is a closed-book exam. The use of notes

  5. Printed Name: Page 1 of 9

    E-Print Network [OSTI]

    Walba, David

    print your name on each page of the exam. H He Li Be B C N O F Na Mg Al Si P S Ne Cl Ar Br I 1 2 3 4 5 6Printed Name: Page 1 of 9 CHEM 3311 (300), Fall 2014 Professor Walba Third Hour Exam November 18: _____________________________ Recitation day and time: __________________________ This is a closed-book exam. The use of notes, calculators

  6. Multiple excitation regenerative amplifier inertial confinement system

    DOE Patents [OSTI]

    George, Victor E. [Livermore, CA; Haas, Roger A. [Pleasanton, CA; Krupke, William F. [Pleasanton, CA; Schlitt, Leland G. [Livermore, CA

    1980-05-27T23:59:59.000Z

    The invention relates to apparatus and methods for producing high intensity laser radiation generation which is achieved through an optical amplifier-storage ring design. One or two synchronized, counterpropagating laser pulses are injected into a regenerative amplifier cavity and amplified by gain media which are pumped repetitively by electrical or optical means. The gain media excitation pulses are tailored to efficiently amplify the laser pulses during each transit. After the laser pulses have been amplified to the desired intensity level, they are either switched out of the cavity by some switch means, as for example an electro-optical device, for any well known laser end uses, or a target means may be injected into the regenerative amplifier cavity in such a way as to intercept simultaneously the counterpropagating laser pulses. One such well known end uses to which this invention is intended is for production of high density and temperature plasmas suitable for generating neutrons, ions and x-rays and for studying matter heated by high intensity laser radiation.

  7. An Algorithm for Computing Customized 3D Printed Implants with Curvature Constrained Channels for Enhancing

    E-Print Network [OSTI]

    North Carolina at Chapel Hill, University of

    An Algorithm for Computing Customized 3D Printed Implants with Curvature Constrained Channels results in 3D printing and steerable needle motion planning to create customized implants containing

  8. Print-and-Peel Fabrication for Microfluidics: What’s in it for Biomedical Applications?

    E-Print Network [OSTI]

    Thomas, Marlon S.; Millare, Brent; Clift, Joseph M.; Bao, Duoduo; Hong, Connie; Vullev, Valentine I.

    2010-01-01T23:59:59.000Z

    of direct three-dimensional (3D) printing of masters using ahave the capability for 3D printing, and hence, for directly

  9. aligned single-walled carbon: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Page Topic Index 1 Printed Multilayer Superstructures of Aligned Single-Walled Carbon Materials Science Websites Summary: Printed Multilayer Superstructures of Aligned...

  10. The Future of Manufacturing Takes Shape: 3D Printed Car on Display...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Lead, Advanced Manufacturing Office Additive manufacturing - often referred to as 3D printing - is a revolutionary way to design and build products. Until now, 3D printing has...

  11. Printed circuit dispersive transmission line

    DOE Patents [OSTI]

    Ikezi, H.; Lin-Liu, Y.R.; DeGrassie, J.S.

    1991-08-27T23:59:59.000Z

    A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other. 5 figures.

  12. Band excitation method applicable to scanning probe microscopy

    DOE Patents [OSTI]

    Jesse, Stephen; Kalinin, Sergei V

    2013-05-28T23:59:59.000Z

    Methods and apparatus are described for scanning probe microscopy. A method includes generating a band excitation (BE) signal having finite and predefined amplitude and phase spectrum in at least a first predefined frequency band; exciting a probe using the band excitation signal; obtaining data by measuring a response of the probe in at least a second predefined frequency band; and extracting at least one relevant dynamic parameter of the response of the probe in a predefined range including analyzing the obtained data. The BE signal can be synthesized prior to imaging (static band excitation), or adjusted at each pixel or spectroscopy step to accommodate changes in sample properties (adaptive band excitation). An apparatus includes a band excitation signal generator; a probe coupled to the band excitation signal generator; a detector coupled to the probe; and a relevant dynamic parameter extractor component coupled to the detector, the relevant dynamic parameter extractor including a processor that performs a mathematical transform selected from the group consisting of an integral transform and a discrete transform.

  13. Band excitation method applicable to scanning probe microscopy

    DOE Patents [OSTI]

    Jesse, Stephen (Knoxville, TN) [Knoxville, TN; Kalinin, Sergei V. (Knoxville, TN) [Knoxville, TN

    2010-08-17T23:59:59.000Z

    Methods and apparatus are described for scanning probe microscopy. A method includes generating a band excitation (BE) signal having finite and predefined amplitude and phase spectrum in at least a first predefined frequency band; exciting a probe using the band excitation signal; obtaining data by measuring a response of the probe in at least a second predefined frequency band; and extracting at least one relevant dynamic parameter of the response of the probe in a predefined range including analyzing the obtained data. The BE signal can be synthesized prior to imaging (static band excitation), or adjusted at each pixel or spectroscopy step to accommodate changes in sample properties (adaptive band excitation). An apparatus includes a band excitation signal generator; a probe coupled to the band excitation signal generator; a detector coupled to the probe; and a relevant dynamic parameter extractor component coupled to the detector, the relevant dynamic parameter extractor including a processor that performs a mathematical transform selected from the group consisting of an integral transform and a discrete transform.

  14. Core excitation effects in the breakup of halo nuclei

    SciTech Connect (OSTI)

    Moro, A. M.; Diego, R. de; Lay, J. A.; Crespo, R.; Johnson, R. C.; Arias, J. M.; Gomez-Camacho, J. [Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla (Spain); Centro de Fisica Nuclear, Universidade de Lisboa, Av. Prof. Gama Pinto 2, 1649-003 Lisboa (Portugal) and Departamento de Fisica, Instituto Superior Tecnico, Universidade Tecnica de Lisboa, Av. Prof. Cavaco Silva, Taguspark (Portugal); Physics Department, University of Surrey, Guildford Surrey, GU2 7XH (United Kingdom); Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla (Spain); Departamento de FAMN, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla (Spain) and Centro Nacional de Aceleradores, Universidad de Sevilla/Junta de Andalucia, E-41092 Sevilla (Spain)

    2012-10-20T23:59:59.000Z

    The role of core excitation in the structure and dynamics of two-body halo nuclei is investigated. We present calculations for the resonant breakup of {sup 11}Be on protons at an incident energy of 63.7 MeV/nucleon, where core excitation effects were shown to be important. To describe the reaction, we use a recently developed extension of the DWBA formalism which incorporates these core excitation effects within the no-recoil approximation. The validity of the no-recoil approximation is also examined by comparing with DWBA calculations which take into account core recoil. In addition, calculations with two different continuum representations are presented and compared.

  15. Collective excitations of hydrodynamically coupled driven colloidal particles

    E-Print Network [OSTI]

    Harel Nagar; Yael Roichman

    2014-08-21T23:59:59.000Z

    Two colloidal particles, driven around an optical vortex trap, have been recently shown to pair due to an interplay between hydrodynamic interactions and the curved path they are forced to follow. We demonstrate here, that this pairing interaction can be tuned experimentally, and study its effect on the collective excitations of many particles driven around such an optical trap. We find that even though the system is overdamped, hydrodynamic interactions due to driving give rise to non-decaying excitations with characteristic dispersion relations. The collective excitations of the colloidal ring reflect fluctuations of particle pairs rather than those of single particles.

  16. Fusion barrier distributions in systems with finite excitation energy

    E-Print Network [OSTI]

    K. Hagino; N. Takigawa; A. B. Balantekin

    1997-06-24T23:59:59.000Z

    Eigen-channel approach to heavy-ion fusion reactions is exact only when the excitation energy of the intrinsic motion is zero. In order to take into account effects of finite excitation energy, we introduce an energy dependence to weight factors in the eigen-channel approximation. Using two channel problem, we show that the weight factors are slowly changing functions of incident energy. This suggests that the concept of the fusion barrier distribution still holds to a good approximation even when the excitation energy of the intrinsic motion is finite. A transition to the adiabatic tunneling, where the coupling leads to a static potential renormalization, is also discussed.

  17. A digital-based excitation system for generator voltage control

    SciTech Connect (OSTI)

    D'Antonio, M.J.; Lawson, R.A.; Pearson, W.R. (General Electric Co., Salem, VA (US)); Speer, G.W. (General Electric Canada, Peterborough, Ontario (CA)); Crenshaw, M.L.; Murdoch, A. (GE Industrial and Power Systems, Power Systems Engineering Dept., Schenectady, NY (US))

    1991-01-01T23:59:59.000Z

    Excitation systems have evolved over the years as new technology is introduced, offering easier implementations, higher reliability, less maintenance, enhanced functionality, and user friendly interfaces. Microprocessor based controls are now common in electric drives, protective relaying, turbine controls, power plant displays and supervisory control functions. The flexibility, functionality, and user friendly interface capabilities of digital controls are now available for excitation systems. This paper provides an overview of GE's first generation digital excitation system, SILCO 5, and an introduction to GE's second generation system, EX2000, currently in development.

  18. Brushless exciters using a high temperature superconducting field winding

    DOE Patents [OSTI]

    Garces, Luis Jose (Schenectady, NY); Delmerico, Robert William (Clifton Park, NY); Jansen, Patrick Lee (Scotia, NY); Parslow, John Harold (Scotia, NY); Sanderson, Harold Copeland (Tribes Hill, NY); Sinha, Gautam (Chesterfield, MO)

    2008-03-18T23:59:59.000Z

    A brushless exciter for a synchronous generator or motor generally includes a stator and a rotor rotatably disposed within the stator. The rotor has a field winding and a voltage rectifying bridge circuit connected in parallel to the field winding. A plurality of firing circuits are connected the voltage rectifying bridge circuit. The firing circuit is configured to fire a signal at an angle of less than 90.degree. or at an angle greater than 90.degree.. The voltage rectifying bridge circuit rectifies the AC voltage to excite or de-excite the field winding.

  19. Design guidelines for SAR digital receiver/exciter boards.

    SciTech Connect (OSTI)

    Dudley, Peter A.

    2009-08-01T23:59:59.000Z

    High resolution radar systems generally require combining fast analog to digital converters and digital to analog converters with very high performance digital signal processing logic. These mixed analog and digital printed circuit boards present special challenges with respect to electromagnetic interference. This document first describes the mechanisms of interference on such boards then follows up with a discussion of prevention techniques and finally provides a checklist for designers to help avoid common mistakes.

  20. Improvements in magnetic resonance imaging excitation pulse design

    E-Print Network [OSTI]

    Zelinski, Adam Charles

    2008-01-01T23:59:59.000Z

    This thesis focuses on the design of magnetic resonance imaging (MRI) radio-frequency (RF) excitation pulses, and its primary contributions are made through connections with the novel multiple-system single-output (MSSO) ...

  1. Chemical Dynamics at Metal Surfaces: The Role of Electronic Excitation...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Chemical Dynamics at Metal Surfaces: The Role of Electronic Excitations Mar 06 2015 11:00 AM - 12:00 PM John Tully, Yale University, New Haven, Connecticut Joint Institute for...

  2. Dipole Excitation With A Paul Ion Trap Mass Spectrometer

    SciTech Connect (OSTI)

    MacAskill, J. A.; Madzunkov, S. M.; Chutjian, A. [Atomic and Molecular Physics Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States)

    2011-06-01T23:59:59.000Z

    Preliminary results are presented for the use of an auxiliary radiofrequency (rf) excitation voltage in combination with a high purity, high voltage rf generator to perform dipole excitation within a high precision Paul ion trap. These results show the effects of the excitation frequency over a continuous frequency range on the resultant mass spectra from the Paul trap with particular emphasis on ion ejection times, ion signal intensity, and peak shapes. Ion ejection times are found to decrease continuously with variations in dipole frequency about several resonant values and show remarkable symmetries. Signal intensities vary in a complex fashion with numerous resonant features and are driven to zero at specific frequency values. Observed intensity variations depict dipole excitations that target ions of all masses as well as individual masses. Substantial increases in mass resolution are obtained with resolving powers for nitrogen increasing from 114 to 325.

  3. Thermal excitation of plasmons for near-field thermophotovoltaics

    SciTech Connect (OSTI)

    Guo, Yu; Molesky, Sean; Hu, Huan; Cortes, Cristian L.; Jacob, Zubin, E-mail: zjacob@ualberta.ca [Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta T6G 2V4 (Canada)

    2014-08-18T23:59:59.000Z

    The traditional approaches of exciting plasmons consist of either using electrons (e.g., electron energy loss spectroscopy) or light (Kretchman and Otto geometry) while more recently plasmons have been excited even by single photons. A different approach: thermal excitation of a plasmon resonance at high temperatures using alternate plasmonic media was proposed by S. Molesky et al. [Opt. Express 21, A96–A110 (2013)]. Here, we show how the long-standing search for a high temperature narrowband near-field emitter for thermophotovoltaics can be fulfilled by thermally exciting plasmons. We also describe a method to control Wein's displacement law in the near-field using high temperature epsilon-near-zero metamaterials. Finally, we show that our work opens up an interesting direction of research for the field of slow light: thermal emission control.

  4. in the spotlight: can our excited synapses comprehendthem? s

    E-Print Network [OSTI]

    Granick, Steve

    in the spotlight: can our excited synapses comprehendthem? s Patricia C. Salinas is in the Department of Biological Sciences, Imperial College London, London SW8 2AZ, UK. e-mail: p.salinas

  5. Sandia National Laboratories: high quantum yield under blue excitation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    quantum yield under blue excitation Sandia Develops a Synthesis of Quantum Dots that Increases the Quantum Yield to 95.5% On May 23, 2013, in Energy, Energy Efficiency, Materials...

  6. Highly Oxidizing Excited States of Re and Tc Complexes. | EMSL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in water solution. Citation: Del Negro AS, CJ Seliskar, WR Heineman, SE Hightower, SA Bryan, and BP Sullivan.2006."Highly Oxidizing Excited States of Re and Tc Complexes."Journal...

  7. Theoretical Assessment of 178m2Hf De-Excitation

    SciTech Connect (OSTI)

    Hartouni, E P; Chen, M; Descalle, M A; Escher, J E; Loshak, A; Navratil, P; Ormand, W E; Pruet, J; Thompson, I J; Wang, T F

    2008-10-06T23:59:59.000Z

    This document contains a comprehensive literature review in support of the theoretical assessment of the {sup 178m2}Hf de-excitation, as well as a rigorous description of controlled energy release from an isomeric nuclear state.

  8. Plasticity of Dendritic Excitability Andreas Frick,* Daniel Johnstony

    E-Print Network [OSTI]

    Johnston, Daniel

    Plasticity of Dendritic Excitability Andreas Frick,* Daniel Johnstony Baylor College of Medicine function display plasticity under diverse circumstances such as neuromo- dulation, adaptation, learning­115, 2005 Keywords: intrinsic plasticity; synaptic plasticity; long- term potentiation (LTP); dendrite

  9. Radio frequency sheath formation and excitation around a stepped electrode

    SciTech Connect (OSTI)

    Barnat, E.V.; Hebner, G.A. [Sandia National Laboratories, Albuquerque, New Mexico 87185-1423 (United States)

    2005-03-15T23:59:59.000Z

    Plasma and sheath structure around a rf excited stepped electrode is investigated. Laser-induced fluorescence dip spectroscopy is used to spatially resolve sheath fields in an argon discharge while optical emission and laser-induced fluorescence are used to measure the spatial structure of the surrounding discharge for various discharge conditions and step-junction configurations. The presence of the step perturbs the spatial structure of the fields around the step as well as the excitation in the region above the step.

  10. Inorganic volumetric light source excited by ultraviolet light

    DOE Patents [OSTI]

    Reed, S.; Walko, R.J.; Ashley, C.S.; Brinker, C.J.

    1994-04-26T23:59:59.000Z

    The invention relates to a composition for the volumetric generation of radiation. The composition comprises a porous substrate loaded with a component capable of emitting radiation upon interaction with an exciting radiation. Preferably, the composition is an aerogel substrate loaded with a component, e.g., a phosphor, capable of interacting with exciting radiation of a first energy, e.g., ultraviolet light, to produce radiation of a second energy, e.g., visible light. 4 figures.

  11. THE EFFECT OF VIBRATIONAL EXCITATION ON THE DYNAMICS OF ION-MOLECULE REACTIONS

    E-Print Network [OSTI]

    Anderson, S.L.

    2010-01-01T23:59:59.000Z

    Molecular Research Division THE/EFFECT OF VIBRATIONAL EXCITATION ON THE DYNAMICSmolecular charge transfer. 'J i THE EFFECT OF VIBRATIONAL EXCITATION ON THE DYNAMICS

  12. Measurement of the 208Pb(52Cr, n)259Sg Excitation Function

    E-Print Network [OSTI]

    Folden III, C.M.

    2010-01-01T23:59:59.000Z

    of other measured cold fusion excitation functions (see Fig.in agreement with other cold fusion excitation functions,+b I. INTRODUCTION “Cold” nuclear fusion reactions, using Pb

  13. Excitation spectrum of a model antiferromagnetic spin-trimer.

    SciTech Connect (OSTI)

    Stone, Matthew B [ORNL; Fernandez-Alonso, F. [ISIS Facility, Rutherford Appleton Laboratory; Adroja, D. T. [ISIS Facility, Rutherford Appleton Laboratory; Dalal, N. S. [Florida State University; Villagran, D. [Texas A& M University; Cotton, F. A. [Texas A& M University; Nagler, Stephen E [ORNL

    2007-01-01T23:59:59.000Z

    We present an inelastic neutron scattering (INS) study of the excitation spectrum of a quantum S=1/2 equilateral Heisenberg trimer, Cu{sub 3}(O{sub 2}C{sub 16}H{sub 23}){sub 61.2}C{sub 6}H{sub 12}. The magnetic properties of the system can be described by an ensemble of independent equilateral triangles of S=1/2 Cu{sup 2+} ions. With antiferromagnetic Heisenberg coupling, the ground state of each trimer is a degenerate pair of S=1/2 doublets, with a quartet S=3/2 excited state. Previous bulk measurements led to an estimate for the excitation energy of 28 meV. Here, we report INS measurements that can provide a direct measurement of magnetic excitation energies. These measurements are challenging since inter- and intramolecular vibrational modes associated with the organic ligands are at frequencies similar to the magnetic excitations. Measurements on a nonmagnetic compound with the same ligands as well as the temperature dependence of the neutron scattering cross section are used to identify the vibrational modes. This leads to an identification of the magnetic excitation energy as being approximately 37 meV at T=10 K, with a gradual softening with increasing temperature.

  14. New excitation system for indoor testing of overhead conductors

    SciTech Connect (OSTI)

    Gopalan, T.V. (Regional Engineering Coll., Calicut (India). Industry-Inst. Linkage Cell)

    1993-12-01T23:59:59.000Z

    In the study of wind-induced motion of conductors of overhead power transmission lines, an indoor test span measuring 30 m or more is normally used. The span is generally excited into motion by an electrodynamic-type exciter connected at a span end. This connection increases the stiffness of the span at the point of connection, which will affect the dynamic characteristics of the test span. A more exact simulation of the indoor test-conductor motion is essential. Simulation of test-conductor motion using the principle of electrodynamic forces between parallel, long conductors is proposed. Indoor test-span motion by this method is equivalent to steady crosswinds excitation in the field as distinguished from galloping conductors resulting from a combination of wind direction, velocity, moisture, and temperature. Consequently, the results of vibration experiments also will be more exact. The principle employed in the new excitation system, the methods of excitation in indoor spans using the principle, and the advantages of the new excitation system as compared to the presently employed system are discussed in this paper.

  15. americium iodides: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    clay materials and relation with the forms of water: a low field proton NMR study G. Montavon 1 , Z. Guo 1** , C. Tournassat 2 , B. Grambow1 of the present work was to...

  16. A method for dating early books and prints using image analysis

    E-Print Network [OSTI]

    Hedges, Blair

    by Rembrandt (Ash & Fletcher 1998) and Shakespeare (Hunter 2001). Occasionally, marks in prints that resulted

  17. Hot Melt Inks for 3D Printing Veronika Chovancova*, Alexandra Pekarovicova* and Paul D. Fleming III

    E-Print Network [OSTI]

    Fleming, Paul D. "Dan"

    Hot Melt Inks for 3D Printing Veronika Chovancova*, Alexandra Pekarovicova* and Paul D. Fleming III for 3D printing comprises different waxes, tackifier and plasticizer resins, rheology modifiers, and UV rheological (or flow) behavior. 1 3D printing, direct ink-jet printing, and related approaches such as hot

  18. Excited-state OH Masers and Supernova Remnants

    E-Print Network [OSTI]

    Ylva M. Pihlström; Vincent L. Fish; Loránt O. Sjouwerman; Laura K. Zschaechner; Philip B. Lockett; Moshe Elitzur

    2007-12-29T23:59:59.000Z

    The collisionally pumped, ground-state 1720 MHz maser line of OH is widely recognized as a tracer for shocked regions and observed in star forming regions and supernova remnants. Whereas some lines of excited states of OH have been detected and studied in star forming regions, the subject of excited-state OH in supernova remnants -- where high collision rates are to be expected -- is only recently being addressed. Modeling of collisional excitation of OH demonstrates that 1720, 4765 and 6049 MHz masers can occur under similar conditions in regions of shocked gas. In particular, the 6049 and 4765 MHz masers become more significant at increased OH column densities where the 1720 MHz masers begin to be quenched. In supernova remnants, the detection of excited-state OH line maser emission could therefore serve as a probe of regions of higher column densities. Using the Very Large Array, we searched for excited-state OH in the 4.7, 7.8, 8.2 and 23.8 GHz lines in four well studied supernova remnants with strong 1720 MHz maser emission (SgrAEast, W28, W44 and IC443). No detections were made, at typical detection limits of around 10 mJy/beam. The search for the 6 GHz lines were done using Effelsberg since the VLA receivers did not cover those frequencies, and are reported on in an accompanying letter (Fish, Sjouwerman & Pihlstrom 2007). We also cross-correlated the positions of known supernova remnants with the positions of 1612 MHz maser emission obtained from blind surveys. No probable associations were found, perhaps except in the SgrAEast region. The lack of detections of excited-state OH indicates that the OH column densities suffice for 1720 MHz inversion but not for inversion of excited-state transitions, consistent with the expected results for C-type shocks.

  19. Transport of ions in a segmented linear Paul trap in printed-circuit-board technology

    E-Print Network [OSTI]

    G. Huber; T. Deuschle; W. Schnitzler; R. Reichle; K. Singer; F. Schmidt-Kaler

    2007-11-19T23:59:59.000Z

    We describe the construction and operation of a segmented linear Paul trap, fabricated in printed-circuit-board technology with an electrode segment width of 500 microns. We prove the applicability of this technology to reliable ion trapping and report the observation of Doppler cooled ion crystals of Ca-40 with this kind of traps. Measured trap frequencies agree with numerical simulations at the level of a few percent from which we infer a high fabrication accuracy of the segmented trap. To demonstrate its usefulness and versatility for trapped ion experiments we study the fast transport of a single ion. Our experimental results show a success rate of 99.0(1)% for a transport distance of 2x2mm in a round-trip time of T=20us, which corresponds to 4 axial oscillations only. We theoretically and experimentally investigate the excitation of oscillations caused by fast ion transports with error-function voltage ramps: For a slightly slower transport (a round-trip shuttle within T=30us) we observe non-adiabatic motional excitation of 0.89(15)meV.

  20. articular prosthetic device: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of variable impedance prosthetic sockets for trans-tibial amputees : polyjet matrix 3D printing of comfortable prosthetic sockets using digital anatomical data MIT - DSpace...

  1. artificially generated gravity: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (Nolfi and Floreano, 2000), neural networks design files of body com- ponents for 3D printing, and for compiling neural-network controllers to run artificial neural networks....

  2. advanced lithium titanate: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    MEMS has been limited due to the lack of process compatibility with existing MEMS manufacturing techniques. Direct printing of thin films eliminates the need for...

  3. advanced hydrotest facility: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    however a high end product, which can be itself subject to printed circuit board manufacturing control problems that could greatly affect its quality control. In order to study...

  4. additional designations foreign: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    76 International Mobility and Foreign Students Service International Activities for didactics office Mathematics Websites Summary: .unige.itrelint Printed by centro Stampa...

  5. area southwest estonia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Langmuir, Charles H. 130 Southwest MN IPM STUFF All the pestilence that's fit to print Power Transmission, Distribution and Plants Websites Summary: weather Rainfall, air and soil...

  6. acute uncomplicated urinary: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    decision support intervention sites (11 practices) received decision support for acute cough illness through a print-based strategy, the computer-assisted decision support...

  7. acute uncomplicated cystitis: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    decision support intervention sites (11 practices) received decision support for acute cough illness through a print-based strategy, the computer-assisted decision support...

  8. acute uncomplicated plasmodium: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    decision support intervention sites (11 practices) received decision support for acute cough illness through a print-based strategy, the computer-assisted decision support...

  9. acute uncomplicated falciparum: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    decision support intervention sites (11 practices) received decision support for acute cough illness through a print-based strategy, the computer-assisted decision support...

  10. array automated assembly: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: environmental impact Robotics Injection Molding Advanced Polymer Composites 3D Printing 12;In-Mold Assembly: A New manufacturing Approach Introduce multiple...

  11. anna veronika wendland: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Heijbel Storage phosphor autoradiography Tian, Weidong 17 Hot Melt Inks for 3D Printing Veronika Chovancova*, Alexandra Pekarovicova* and Paul D. Fleming III Engineering...

  12. additive stabilization process: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Computer Technologies and Information Sciences Websites Summary: prototyping and 3D printing by users both in engineering and the humanities. The proposed digital...

  13. automatic 3d fe: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Computer Technologies and Information Sciences Websites Summary: by means of the "3D printing" devices used in mechanical rapid prototyping. Another one is that 3D...

  14. automated dna assembly: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: environmental impact Robotics Injection Molding Advanced Polymer Composites 3D Printing 12;In-Mold Assembly: A New manufacturing Approach Introduce multiple...

  15. andres krumme veronika: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    making volume painting more suitable for creating illustrations 8 Hot Melt Inks for 3D Printing Veronika Chovancova*, Alexandra Pekarovicova* and Paul D. Fleming III Engineering...

  16. automated array assembly: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: environmental impact Robotics Injection Molding Advanced Polymer Composites 3D Printing 12;In-Mold Assembly: A New manufacturing Approach Introduce multiple...

  17. automated 3d correlative: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Bosch, Frdric 8 Bridging the Gap: Automated Steady Scaffoldings for 3D Printing Jrmie Dumas Computer Technologies and Information Sciences Websites Summary:...

  18. atomic resolution 3d: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    developed 3D video database of spontaneous facial Cohn, Jeffrey F. 16 Improvement of 3D Printing Resolution by the Development of Shrinkable Materials University of California...

  19. additive main effect: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    be presented for components that can be processed by additive manufacturing (AM) or 3D printing. The origin structures. KEYWORDS : structural health monitoring methodology, 3D...

  20. additional effective dose: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    be presented for components that can be processed by additive manufacturing (AM) or 3D printing. The origin structures. KEYWORDS : structural health monitoring methodology, 3D...

  1. angular resolution 3d: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    developed 3D video database of spontaneous facial Cohn, Jeffrey F. 18 Improvement of 3D Printing Resolution by the Development of Shrinkable Materials University of California...

  2. accumulated hyaluronic acid: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    birefringence microscopy measurements demonstrate a high degree of localized 5 3D printing of hyaluronic acid scaffolds for tissue engineering applications. Open Access...

  3. additive effect catalyseurs: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    be presented for components that can be processed by additive manufacturing (AM) or 3D printing. The origin structures. KEYWORDS : structural health monitoring methodology, 3D...

  4. Making 3D Printed Christmas Ornaments | GE Global Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    This Contributor Santa's sleigh becomes "Intelligent Machine" this Christmas Using 3D Printing to Redesign Santa's Sleigh A Sneak Peek Into Santa's Smarter Sleigh Subscribe to...

  5. anu tammiste kristi: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    journal and newspaper articles, print and electronic books, websites, etc. Enter your search terms by subject basis, and can be accessed by searching the Library catalogue,...

  6. attalea phalerata palms: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    University of 272 Please consider the environment before printing Europe bars illegal timber from markets Renewable Energy Websites Summary: .U. to prove their wood is legally...

  7. argentine republic analysis: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ar entina (Washington U. S. Oovernamnt Printing Office, 1945), 44, The inportancs to Argentina of foreign nsrkets for its export products did not prevent the developnent, in the...

  8. anesthetics intravenous: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Printed in the USA-3892 www.cognizantcommunication.com Intravenous Administration of 99m Tc-HMPAO-Labeled Human Mesenchymal, Centre Hospitalier Universitaire, Grenoble Cedex 9,...

  9. apolipoprotein forming soluble: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    these is pointed out. Kamal K. Seth 2007-12-03 411 PROGRAM CLARIFICATION RETURN FORM Power Transmission, Distribution and Plants Websites Summary: . This form is printed on...

  10. assuring consumer safety: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    is of great significance. unknown authors 412 Assuring Equity Through Health and Health Care Reform Conference Registration Information (Type or Print) Biology and Medicine...

  11. ancient iberian brown: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Websites Summary: Screen Esc Print Version Interactive Discussion EGU Abstract Wind speed data obtained from the National-March) wind in- dices for the western Iberian...

  12. anatomic variables affecting: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of variable impedance prosthetic sockets for trans-tibial amputees : polyjet matrix 3D printing of comfortable prosthetic sockets using digital anatomical data MIT - DSpace...

  13. aluminium crafts ways: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Digital Practice within Contemporary Craft MIT - DSpace Summary: Contemporary 3D printing and traditional craft rarely meet in the same creation. They tend to live in...

  14. assessing mechanical function: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of multiple functions into simple topologies, by embedding sensors and actuators such as 3D printing with materials specialized in electro- mechanical sensing and actuation in...

  15. act devices: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Department, UC San Diego tkohno introduce the area of remote physical device finger- printing, or fingerprinting a physical device, as opposed to an operating system or class of...

  16. atrial mechanical function: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of multiple functions into simple topologies, by embedding sensors and actuators such as 3D printing with materials specialized in electro- mechanical sensing and actuation in...

  17. additional oxygenated functional: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    will be presented for components that can be processed by additive manufacturing (AM) or 3D printing. The origin structures. KEYWORDS : structural health monitoring methodology, 3D...

  18. acid conductances govern: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and Agricultural Drainage; Geotechnical Julien, Pierre Y. 333 U.S. GOVERNMENT PRINTING OFFICE WASHINGTON Plasma Physics and Fusion Websites Summary: U.S. GOVERNMENT...

  19. aligned carbon nanotube: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Contact Transfer Printing of Aligned Carbon Nanotube Patterns and Characterization materials. For many promising nanomaterials, includ- ing carbon nanotubes (CNTs), major...

  20. aligned carbon nanotubes: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Contact Transfer Printing of Aligned Carbon Nanotube Patterns and Characterization materials. For many promising nanomaterials, includ- ing carbon nanotubes (CNTs), major...

  1. aged scots pine: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    include plant biomass, topology Boyer, Edmond 22 Plant Ecology 145: 115123, 1999. 1999 Kluwer Academic Publishers. Printed in the Netherlands. 115 Seed predation and...

  2. american ophthalmolgical society: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Eugene, OR 97403 Bothun, Gregory 443 THE ASTRONOMICAL JOURNAL, 118:16181634, 1999 October 1999. The American Astronomical Society. All rights reserved. Printed in U.S.A.(...

  3. antigen small molecule: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    A printing technology for OLEDs and next the answer? http:www.tranism.comweblogimagesphotovoltaicoled.jpg 12;Like this one --- Yellow resolution 12;From drops to pads ...

  4. affordable nuclear electricity: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    print media, especially local newspapers, and by its obverse Ramakrishnan, Naren 67 Impacts of the Affordable Care Act on Health Insurance Biology and Medicine Websites Summary:...

  5. Novel 3-D Printed Inverters for Electric Vehicles Can Improve...

    Energy Savers [EERE]

    density of the prototype. In addition to the improvements to the inverter itself, 3-D printing uses less energy compared to conventional manufacturing, making the manufacturing...

  6. auriferous alluvial sands: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    STATES OF AMERICA 12; SAND2002-xxxx Unlimited Release Printed August 2002 by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under...

  7. adv funct mater: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Printed in the UK Atomistic simulation Grujicic, Mica 147 J Mater Sci (2006) 41:72327239 7232 Squeeze Infiltration Processing of Nickel Coated Carbon Fiber Reinforced...

  8. active cell surface: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    useful in a wide range of applications such as sensors, electrochemical transistors, solar cells, and printed electronics due to their mechanical, optical and electronic...

  9. alizarine fast green: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    print advertising and trade show booths. The names are probably familiar: Greenguard, Green Seal, Energy Star, Environmentally Preferable Products, SmartWood, Green Label Plus,...

  10. alizarine cyanine green: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    print advertising and trade show booths. The names are probably familiar: Greenguard, Green Seal, Energy Star, Environmentally Preferable Products, SmartWood, Green Label Plus,...

  11. ames expedited site: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Outreach extensive local, national and international interest was generated by web, broadcast and print South Australia 5 Confluences: AnAmericanExpedition Biology and...

  12. 18.9 %-EFFICIENT SCREEN-PRINTED SOLAR CELLS APPLYING A PRINT-ON-PRINT Helge Hannebauer1

    E-Print Network [OSTI]

    is caused by an improved short circuit current of up to 37.4 mA/cm2 which is explained by the reduced loss and hence increase the short circuit current (Jsc). However, in case of standard single printed Ag

  13. Excitations and benchmark ensemble density functional theory for two electrons

    SciTech Connect (OSTI)

    Pribram-Jones, Aurora; Burke, Kieron [Department of Chemistry, University of California-Irvine, Irvine, California 92697 (United States)] [Department of Chemistry, University of California-Irvine, Irvine, California 92697 (United States); Yang, Zeng-hui; Ullrich, Carsten A. [Department of Physics and Astronomy, University of Missouri, Columbia, Missouri 65211 (United States)] [Department of Physics and Astronomy, University of Missouri, Columbia, Missouri 65211 (United States); Trail, John R.; Needs, Richard J. [Theory of Condensed Matter Group, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE (United Kingdom)] [Theory of Condensed Matter Group, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE (United Kingdom)

    2014-05-14T23:59:59.000Z

    A new method for extracting ensemble Kohn-Sham potentials from accurate excited state densities is applied to a variety of two-electron systems, exploring the behavior of exact ensemble density functional theory. The issue of separating the Hartree energy and the choice of degenerate eigenstates is explored. A new approximation, spin eigenstate Hartree-exchange, is derived. Exact conditions that are proven include the signs of the correlation energy components and the asymptotic behavior of the potential for small weights of the excited states. Many energy components are given as a function of the weights for two electrons in a one-dimensional flat box, in a box with a large barrier to create charge transfer excitations, in a three-dimensional harmonic well (Hooke's atom), and for the He atom singlet-triplet ensemble, singlet-triplet-singlet ensemble, and triplet bi-ensemble.

  14. A framework for describing correlated excitation of solar p modes

    E-Print Network [OSTI]

    W. J. Chaplin; Y. Elsworth; T. Toutain

    2008-04-21T23:59:59.000Z

    In a previous paper we suggested that, for a given p mode, the excitation function is the same as the component of the solar background noise that has an identical surface spherical harmonic projection (over the corresponding range of temporal frequency). An important consequence of this surmise is that the excitation of overtones of a given angular degree and azimuthal order will be correlated in time. In this note, we introduce the basic principles and a mathematical description of correlated mode excitation. We use simple, illustrative examples, involving two modes. Our treatment suggests that in the real observations, any signatures of the correlation would not appear as a correlation of the output amplitudes of overtones, but rather as subtle modifications to the power spectral density at frequencies between the central frequencies of the overtones. These modifications give a contribution to the observed peak asymmetries.

  15. Selective Rotational Excitation of Molecular Isotopes and Nuclear Spin Isomers

    E-Print Network [OSTI]

    Sharly Fleischer; Ilya. Sh. Averbukh; Yehiam Prior

    2007-02-15T23:59:59.000Z

    Following excitation by a strong ultra-short laser pulse, molecules develop coordinated rotational motion, exhibiting transient alignment along the direction of the laser electric field, followed by periodic full and fractional revivals that depend on the molecular rotational constants. In mixtures, the different species undergo similar rotational dynamics, all starting together but evolving differently with each demonstrating its own periodic revival cycles. For a bimolecular mixture of linear molecules, at predetermined times, one species may attain a maximally aligned state while the other is anti-aligned (i.e. molecular axes are confined in a plane perpendicular to the laser electric field direction). By a properly timed second laser pulse, the rotational excitation of the undesired species may be almost completely removed leaving only the desired species to rotate and periodically realign, thus facilitating further selective manipulations by polarized light. In this paper, such double excitation schemes are demonstrated for mixtures of molecular isotopes (isotopologues) and for nuclear spin isomers.

  16. Resonant vibrational excitation of CO by low-energy electrons

    SciTech Connect (OSTI)

    Poparic, G. B.; Belic, D. S.; Vicic, M. D. [Faculty of Physics, University of Belgrade, Studentski trg 12-16, P.O. Box 368, 11000 Belgrade (Serbia and Montenegro); Washington University School of Medicine, 4921 Parkview Place, Campus Box 8224, St. Louis, Missouri 63110-1093 (United States)

    2006-06-15T23:59:59.000Z

    Electron impact vibrational excitation of the CO molecule, via the {sup 2}{pi} resonance, in the 0-4 eV energy region has been investigated. The energy dependence of the resonant excitation of the first ten vibrational levels, v=1 to v=10, has been measured by use of a crossed-beams double trochoidal electron spectrometer. Obtained relative differential cross sections are normalized to the absolute values. Integral cross sections are determined by using our recent results on scattered electrons angular distributions, which demonstrate clear p-partial wave character of this resonance. Substructures appear in the {sup 2}{pi} resonant excitation of the CO molecule which have not been previously observed.

  17. Toward the excited meson spectrum of dynamical QCD

    SciTech Connect (OSTI)

    Dudek, Jozef J. [Jefferson Laboratory, 12000 Jefferson Avenue, Newport News, Virginia 23606 (United States); Department of Physics, Old Dominion University, Norfolk, Virginia 23529 (United States); Edwards, Robert G.; Richards, David G.; Thomas, Christopher E. [Jefferson Laboratory, 12000 Jefferson Avenue, Newport News, Virginia 23606 (United States); Peardon, Michael J. [School of Mathematics, Trinity College, Dublin 2 (Ireland)

    2010-08-01T23:59:59.000Z

    We present a detailed description of the extraction of the highly excited isovector meson spectrum on dynamical anisotropic lattices using a new quark-field construction algorithm and a large variational basis of operators. With careful operator construction, the combination of these techniques is used to identify the continuum spin of extracted states reliably, overcoming the reduced rotational symmetry of the cubic lattice. Excited states, states with exotic quantum numbers (0{sup +-}, 1{sup -+} and 2{sup +-}), and states of high spin are resolved, including, for the first time in a lattice QCD calculation, spin-four states. The determinations of the spectrum of isovector mesons and kaons are performed on dynamical lattices with two volumes and with pion masses down to {approx}400 MeV, with statistical precision typically at or below 1% even for highly excited states.

  18. Excitation energy dependence of fission in the mercury region

    E-Print Network [OSTI]

    J. D. McDonnell; W. Nazarewicz; J. A. Sheikh; A. Staszczak; M. Warda

    2014-06-26T23:59:59.000Z

    Background: Recent experiments on beta-delayed fission reported an asymmetric mass yield in the neutron-deficient nucleus 180Hg. Earlier experiments in the mass region A=190-200 close to the beta-stability line, using the (p,f) and (\\alpha,f) reactions, observed a more symmetric distribution of fission fragments. While the beta-delayed fission of 180Hg can be associated with relatively low excitation energy, this is not the case for light-ion reactions, which result in warm compound nuclei. Purpose: To elucidate the roles of proton and neutron numbers and excitation energy in determining symmetric and asymmetric fission yields, we compute and analyze the isentropic potential energy surfaces of 174,180,198Hg and 196,210Po. Methods: We use the finite-temperature superfluid nuclear density functional theory, for excitation energies up to E*=30MeV and zero angular momentum. For our theoretical framework, we consider the Skyrme energy density functional SkM* and a density-dependent pairing interaction. Results: For 174,180Hg, we predict fission pathways consistent with asymmetric fission at low excitation energies, with the symmetric fission pathway opening very gradually as excitation energy is increased. For 198Hg and 196Po, we expect the nearly-symmetric fission channel to dominate. 210Po shows a preference for a slightly asymmetric pathway at low energies, and a preference for a symmetric pathway at high energies. Conclusions: Our self-consistent theory suggests that excitation energy weakly affects the fission pattern of the nuclei considered. The transition from the asymmetric fission in the proton-rich nuclei to a more symmetric fission in the heavier isotopes is governed by the shell structure of pre-scission configurations.

  19. Exotic modes of excitation in proton rich nuclei

    SciTech Connect (OSTI)

    Paar, N. [Physics Department, Faculty of Science, University of Zagreb (Croatia)

    2011-11-30T23:59:59.000Z

    The framework of relativistic energy density functional has been applied in description of excitation phenomena in nuclei close to the proton drip line. In particular, low-lying dipole excitations have been studied using relativistic quasiparticle random phase approximation, based on effective Lagrangians with density dependent meson nucleon couplings. In the isovector dipole channel, the occurrence of pronounced low-lying dipole peaks is predicted, corresponding to the proton pygmy dipole resonance. Since this exotic mode still awaits its experimental confirmation, systematic calculations have been conducted within a pool of neutron deficient nuclei, in order to identify the best possible candidates for measurements.

  20. Body-assisted van der Waals interaction between excited atoms

    E-Print Network [OSTI]

    Hassan Safari; Mohammad Reza Karimpour

    2014-12-12T23:59:59.000Z

    We present a formula for the body-assisted van der Waals interaction potential between two atoms, one or both being prepared in an excited energy eigenstate. The presence of arbitrary arrangement for material environment is taken into account via the Green function. The resulting formula supports one of two conflicting findings recorded. The consistency of our formula is investigated by applying it for the case of two atoms in free space and comparing the resulting expression with the one found from the limiting Casimir-Polder potential between an excited atom and a small dielectric sphere.

  1. Secondary dust density waves excited by nonlinear dust acoustic waves

    SciTech Connect (OSTI)

    Heinrich, J. R.; Kim, S.-H.; Meyer, J. K.; Merlino, R. L. [Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242 (United States); Rosenberg, M. [Department of Electrical and Computer Engineering, University of California, San Diego, California 92093 (United States)

    2012-08-15T23:59:59.000Z

    Secondary dust density waves were observed in conjunction with high amplitude (n{sub d}/n{sub d0}>2) dust acoustic waves (DAW) that were spontaneously excited in a dc glow discharge dusty plasma in the moderately coupled, {Gamma}{approx}1, state. The high amplitude dust acoustic waves produced large dust particle oscillations, displacements, and trapping. Secondary dust density waves were excited in the wave troughs of the high amplitude DAWs. The waveforms, amplitudes, wavelengths, and wave speeds of the primary DAWs and the secondary waves were measured. A dust-dust streaming instability is discussed as a possible mechanism for the production of the secondary waves.

  2. 2{sup +} excitation of the {sup 12}C Hoyle state

    SciTech Connect (OSTI)

    Freer, M. [School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT (United Kingdom); Fujita, H.; Carter, J.; Usman, I. [School of Physics, University of the Witwatersrand, Johannesburg 2050 (South Africa); Buthelezi, Z.; Foertsch, S. V.; Neveling, R.; Perez, S. M.; Smit, F. D. [iThemba LABS, P.O. Box 722, Somerset West 7129 (South Africa); Fearick, R. W. [Physics Department, University of Cape Town, Private Bag, Rondebosch 7700 (South Africa); Papka, P.; Swartz, J. A. [Physics Department, University of Stellenbosch, Private Bag X1, Matieland 7602, Stellenbosch (South Africa)

    2009-10-15T23:59:59.000Z

    A high-energy-resolution magnetic spectrometer has been used to measure the {sup 12}C excitation energy spectrum to search for the 2{sup +} excitation of the 7.65 MeV, 0{sup +} Hoyle state. By measuring in the diffractive minimum of the angular distribution for the broad 0{sup +} background, evidence is found for a possible 2{sup +} state at 9.6(1) MeV with a width of 600(100) keV. The implications for the {sup 8}Be+{sup 4}He reaction rate in stellar environments are discussed.

  3. Chirped pulse excitation of two-atom Rydberg states

    E-Print Network [OSTI]

    Kuznetsova, Elena

    2015-01-01T23:59:59.000Z

    We analyze excitation of two ground state atoms to a double Rydberg state by a two-photon chirped optical pulse in the regime of adiabatic rapid passage. For intermediate Rydberg-Rydberg interaction strengths, relevant for atoms separated by $\\sim$ten $\\mu$m, adiabatic excitation can be achieved at experimentally feasible Rabi frequencies and chirp rates of the pulses, resulting in high transfer efficiencies. We also study the adiabatic transfer between ground and Rydberg states as a means to realize a controlled phase gate between atomic qubits.

  4. Energy level displacement of excited np states of kaonic hydrogen

    E-Print Network [OSTI]

    A. N. Ivanov; M. Cargnelli; M. Faber; H. Fuhrmann; V. A. Ivanova; J. Marton; N. I. Troitskaya; J. Zmeskal

    2005-04-09T23:59:59.000Z

    We compute the energy level displacement of the excited np states of kaonic hydrogen within the quantum field theoretic and relativistic covariant model of strong low-energy bar-KN interactions suggested in EPJA21, 11 (2004). For the width of the energy level of the excited 2p state of kaonic hydrogen, caused by strong low-energy interactions, we find Gamma_2p = 2 meV. This result is important for the theoretical analysis of the X-ray yields in kaonic hydrogen.

  5. Stochastic excitation and damping of solar-type oscillations

    E-Print Network [OSTI]

    G. Houdek

    2006-12-01T23:59:59.000Z

    A review on acoustic mode damping and excitation in solar-type stars is presented. Current models for linear damping rates are discussed in the light of recent low-degree solar linewidth measurements with emphasis on the frequency-dependence of damping rates of low-order modes. Recent developments in stochastic excitation models are reviewed and tested against the latest high-quality data of solar-like oscillations, such as from alpha Cen A, and against results obtained from hydrodynamical simulations.

  6. Excitation of two atoms by a propagating single photon pulse

    E-Print Network [OSTI]

    Navneeth Ramakrishnan; Yimin Wang; Valerio Scarani

    2014-11-13T23:59:59.000Z

    We describe the interaction of two two-level atoms in free space with propagating modes of the quantized electromagnetic field, using the time-dependent Heisenberg-Langevin method. For single- photon pulses, we consider the effect of the pulse's spatial and temporal profiles on the atomic excitation. In particular, we find the ideal shape for a pulse to put exactly one excitation in any desired state of the bi-atomic system. Furthermore, we analyze the differences in the atomic dynamics between the cases of Fock state pulses and coherent state pulses.

  7. Excited collective states of heavy even-even nuclei

    SciTech Connect (OSTI)

    Nadirbekov, M. S.; Yuldasheva, G. A. [Uzbek Academy of Sciences, Institute of Nuclear Physics (Uzbekistan)] [Uzbek Academy of Sciences, Institute of Nuclear Physics (Uzbekistan)

    2013-03-15T23:59:59.000Z

    Quadrupole-type collective excitations of even-even nuclei are analyzed. In this analysis, transverse {gamma} vibrations of the nuclear surface are taken into account effectively, while longitudinal beta vibrations remain free. A potential energy of the exponential form is used for free surface longitudinal beta vibrations. The behavior of the energy levels of excited states in the ground-state, {beta}, and {gamma} bands of heavy nuclei is studied, and the predictive potential of the model used is demonstrated for transfermium nuclei.

  8. Highly Excited and Exotic Meson Spectrum from Dynamical Lattice QCD

    SciTech Connect (OSTI)

    Dudek, Jozef J. [Jefferson Laboratory, 12000 Jefferson Avenue, Newport News, Virginia 23606 (United States); Department of Physics, Old Dominion University, Norfolk, Virginia 23529 (United States); Edwards, Robert G.; Richards, David G.; Thomas, Christopher E. [Jefferson Laboratory, 12000 Jefferson Avenue, Newport News, Virginia 23606 (United States); Peardon, Michael J. [School of Mathematics, Trinity College, Dublin 2 (Ireland)

    2009-12-31T23:59:59.000Z

    Using a new quark-field construction algorithm and a large variational basis of operators, we extract a highly excited isovector meson spectrum on dynamical anisotropic lattices. We show how carefully constructed operators can be used to reliably identify the continuum spin of extracted states, overcoming the reduced cubic symmetry of the lattice. Using this method we extract, with confidence, excited states, states with exotic quantum numbers (0{sup +-}, 1{sup -+}, and 2{sup +-}), and states of high spin, including, for the first time in lattice QCD, spin-four states.

  9. First-principles Calculation of Excited State Spectra in QCD

    SciTech Connect (OSTI)

    Dudek, Jozef J. [Jefferson Laboratory, 12000 Jefferson Avenue Suite 1, Newport News, VA 23606 (United States); Department of Physics, Old Dominion University, Norfolk, VA 23529 (United States); Edwards, Robert G.; Richards, David G.; Thomas, Christopher E. [Jefferson Laboratory, 12000 Jefferson Avenue Suite 1, Newport News, VA 23606 (United States); Peardon, Michael J. [School of Mathematics, Trinity College, Dublin 2 (Ireland)

    2011-05-24T23:59:59.000Z

    Recent progress at understanding the excited state spectra of mesons and baryons is described. I begin by outlining the application of the variational method to compute the spectrum of QCD, and then present results for the excited meson spectrum, with continuum quantum numbers of the states clearly delineated. I emphasise the need to extend the calculation to encompass multi-hadron contributions, and describe a recent calculation of the I = 2{pi}{pi} energy-dependent phase shifts as a precursor to the study of channels with resonant behavior. I conclude with recent results for the low lying baryon spectrum, and the prospects for future calculations.

  10. IN THIS ISSUE 2 3D Printing

    E-Print Network [OSTI]

    Hill, Wendell T.

    IN THIS ISSUE 2 3D Printing in McKeldin 3 Saving WMUC Radio 4 You Did What?!? 7 Dance at UMD, in this issue. Our Terrapin Learning Commons is embracing all things digital, and the acquisition of a 3D printer allows any student the op- portunity to make their visions a reality. This little addition

  11. TechnologyReview.com |Print Forums

    E-Print Network [OSTI]

    TechnologyReview.com |Print Forums International Fusion Research By Ian H. Hutchinson July 8, 2005 The announcement in the last week that the site for the International Thermonuclear Experimental Reactor (ITER) is finally resolved is a source of relief and anticipation to nuclear fusion researchers worldwide. It opens

  12. Printing Techniques for Constructing Structural and

    E-Print Network [OSTI]

    Petta, Jason

    Printing Techniques for Constructing Structural and Compliant Electrochemical Energy Storage, but not electronically conductive #12;Spray Deposition #12;Spray Deposition #12;Using Spray Deposition to Construct 3D · Electrochemical characterization of 3D sprayed cell · Effect of stress on electrochemical performance

  13. Printing a poster? Make an appointment!

    E-Print Network [OSTI]

    Niebur, Ernst

    Formats, click on PNG Change the Resolution to 150 dpi Click Save. #12;In PowerPoint: File Print Select new window that pops up: Change Document Title Click Save Under the Save as Type drop down menu, select PNG Click Save Check your output image for correct orientation and layout. If incorrect, change

  14. PRINT ONLY: GLOBAL WARMING Alexeev V. A.

    E-Print Network [OSTI]

    Rathbun, Julie A.

    PRINT ONLY: GLOBAL WARMING Alexeev V. A. Global Warming: 0.6°C or Less? [#1035] The peculiarities of global warming on the Earth during the last century are discussed. Lunar and Planetary Science XXXVIII (2007) full818.pdf #12;GLOBAL WARMING: 0.6 OR LESS? V.A.Alexeev; Vernadsky Institute of Geochemistry

  15. anthracene coupled adenine: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in three different solvents: 1,1,1-trichloro-1,2,2-trifluoroethane, acetonitrile, and xenon. The solute molecule was vibrationally excited by the photo-excitation...

  16. Is a multiple excitation of a single atom equivalent to a single excitation of an ensemble of atoms?

    E-Print Network [OSTI]

    Ido Kanter; Aviad Frydman; Assaf Ater

    2004-05-16T23:59:59.000Z

    Recent technological advances have enabled to isolate, control and measure the properties of a single atom, leading to the possibility to perform statistics on the behavior of single quantum systems. These experiments have enabled to check a question which was out of reach previously: Is the statistics of a repeatedly excitation of an atom N times equivalent to a single excitation of an ensemble of N atoms? We present a new method to analyze quantum measurements which leads to the postulation that the answer is most probably no. We discuss the merits of the analysis and its conclusion.

  17. Is a multiple excitation of a single atom equivalent to a single excitation of an ensemble of atoms?

    E-Print Network [OSTI]

    Kanter, I; Ater, A; Kanter, Ido; Frydman, Aviad; Ater, Assaf

    2004-01-01T23:59:59.000Z

    Recent technological advances have enabled to isolate, control and measure the properties of a single atom, leading to the possibility to perform statistics on the behavior of single quantum systems. These experiments have enabled to check a question which was out of reach previously: Is the statistics of a repeatedly excitation of an atom N times equivalent to a single excitation of an ensemble of N atoms? We present a new method to analyze quantum measurements which leads to the postulation that the answer is most probably no. We discuss the merits of the analysis and its conclusion.

  18. ODS is pleased to an-nounce that an exciting

    E-Print Network [OSTI]

    Bandettini, Peter A.

    ODS is pleased to an- nounce that an exciting new feature has been added to the Computer Access the new feature: · Enter the CARDS data- base from http://ods. od.nih.gov/databases/ cards.html · Run any of the Office of Dietary Supplements. CARDS Database NOW Linked Directly to PubMed Inaugural Issue of ODS Update

  19. Gravity waves excited by jets: Propagation versus generation R. Plougonven

    E-Print Network [OSTI]

    Plougonven, Riwal

    Gravity waves excited by jets: Propagation versus generation R. Plougonven School of Mathematics imposed by the generation mechanism. In proceeding so, effects due to the propagation of the waves through simulations demonstrate that the propagation of inertia-gravity waves through horizontal deformation

  20. Exciting Internship at the American Arab Chamber of Commerce

    E-Print Network [OSTI]

    Cinabro, David

    Exciting Internship at the American Arab Chamber of Commerce Take advantage of the opportunity@americanarab.com with the subject "Internship Opportunity." Include a brief statement on why you would like to work at the American Arab Chamber of Commerce, along with your availability. If you are looking for an internship to fulfill

  1. Optically Excited Entangled States in Organic Molecules Illuminate M. Harpham,,

    E-Print Network [OSTI]

    Mukamel, Shaul

    Optically Excited Entangled States in Organic Molecules Illuminate the Dark L. Upton,, M. Harpham ABSTRACT: We utilize quantum entangled photons to carry out nonlinear optical spectroscopy in organic as a result of entangled photon absorption in organic nonlinear optical molecules. Selectivity

  2. Multipole expansion for relativistic Coulomb excitation H. Esbensen

    E-Print Network [OSTI]

    Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

    Multipole expansion for relativistic Coulomb excitation H. Esbensen Physics Division, Argonne a general expression for the multipole expansion of the electromagnetic interaction in relativistic heavy. The interaction has diagonal as well as off-diagonal multipole components, associated with the intrinsic

  3. SPEECH ENHANCEMENT USING MULTI--PULSE EXCITED LINEAR PREDICTION SYSTEM

    E-Print Network [OSTI]

    SPEECH ENHANCEMENT USING MULTI--PULSE EXCITED LINEAR PREDICTION SYSTEM K.K. PALIWAL Computer enhancement. It is shown that for successful enhancement of speech the error--weighting filter should of enhancing speech corrupted by additive white noise, when only noisy speech is available, is of considerable

  4. Ab Initio Study of Vibrational Dephasing of Electronic Excitations in

    E-Print Network [OSTI]

    Ab Initio Study of Vibrational Dephasing of Electronic Excitations in Semiconducting Carbon Engineering, UniVersity of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan Received May 7, 2007; Revised Manuscript Received August 1, 2007 ABSTRACT Phonon-induced dephasing of electronic transitions

  5. Remote multi-color excitation using femtosecond propagating surface

    E-Print Network [OSTI]

    Potma, Eric Olaf

    Remote multi-color excitation using femtosecond propagating surface plasmon polaritons in gold away from a micrometer sized focused laser spot. We attribute the observed remote nonlinear signal of unwanted heating effects at the target site and represents an attractive approach for surface

  6. Partition of the total excitation energy between complementary fragments

    E-Print Network [OSTI]

    Manailescu, C; Hambsch, F -J; Morariu, C; Oberstedt, S

    2011-01-01T23:59:59.000Z

    Two methods of the total excitation energy (TXE) partition between complementary fission fragments (FF) are compared: one based on the "classical" hypothesis of prompt neutron emission from fully accelerated FF with both fragments having the same residual nuclear temperature distribution,the second one on the systematic behavior of the experimental multiplicity ratio {\

  7. Quantum mechanicallycomplete measurements in electron impact excitation of helium

    E-Print Network [OSTI]

    Quantum mechanicallycomplete measurements in electron impact excitation of helium Andrew G. Mikosza, Nedlands, Perth. 6907, Australia. Abstract. A complete quantum description of the 3! D state of helium, with the Convergent Close Coupling (CCC) calculations. Previous data for helium at 40eV incident electrons

  8. Exclusive studies of the GDR in excited nuclei.

    SciTech Connect (OSTI)

    Nanal, V.

    1998-09-07T23:59:59.000Z

    The GDR in {sup 164}Er at 62 MeV excitation energy has been studied in coincidence with the evaporation residues, selected using the Argonne fragment mass analyzer (FMA). The {sup 164}Er* has a prolate shape with deformation statistical model fit to the data indicate that similar to the ground state.

  9. Spectroscopic probes of vibrationally excited molecules at chemically significant energies

    SciTech Connect (OSTI)

    Rizzo, T.R. [Univ. of Rochester, NY (United States)

    1993-12-01T23:59:59.000Z

    This project involves the application of multiple-resonance spectroscopic techniques for investigating energy transfer and dissociation dynamics of highly vibrationally excited molecules. Two major goals of this work are: (1) to provide information on potential energy surfaces of combustion related molecules at chemically significant energies, and (2) to test theoretical modes of unimolecular dissociation rates critically via quantum-state resolved measurements.

  10. An exciting but challenging road ahead for computational enzyme design

    E-Print Network [OSTI]

    Baker, David

    COMMENTARY An exciting but challenging road ahead for computational enzyme design David Baker* Department of Biochemistry and Howard Hughes Medical Institute, University of Washington, Seattle, Washington designed enzymes are not *Correspondence to: David Baker, J557 Health Sciences Building, Box 357350

  11. 1D subsurface electromagnetic fields excited by energized steel casing

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    1D subsurface electromagnetic fields excited by energized steel casing Wei Yang1 , Carlos Torres the possibility of enabling steel-cased wells as galvanic sources to detect and quantify spatial variations of electrical conductivity in the subsurface. The study assumes a vertical steel-cased well that penetrates

  12. Ultraviolet emissions from Gd3 + ions excited by energy transfer

    E-Print Network [OSTI]

    Cao, Wenwu

    Ultraviolet emissions from Gd3 + ions excited by energy transfer from Ho3 + ions Ying Yu October 2010 Accepted 28 October 2010 Available online 4 November 2010 Keywords: Ultraviolet emission Upconversion Energy transfer a b s t r a c t Ultraviolet (UV) upconversion (UC) emissions of Gd3+ ion were

  13. High efficiency excitation of plasmonic waveguides with vertically integrated resonant

    E-Print Network [OSTI]

    Xu, Xianfan

    High efficiency excitation of plasmonic waveguides with vertically integrated resonant bowtie approach employs a bowtie aperture to provide both field confinement and high transmission efficiency. More than six times the power incident on the open area of the bowtie aperture can be coupled

  14. Molecular dynamics of liquid benzene via femtosecond pulses laser excitation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1749 Molecular dynamics of liquid benzene via femtosecond pulses laser excitation J. Etchepare, G moléculaires. Abstract. 2014 We analyse the complex response of liquid benzene to the applied 45 fs FHWM new results obtained by the transient grating temporal behaviour analysis of benzene, a molecule

  15. Spectral measurement of the thermal excitation of a superconducting qubit

    E-Print Network [OSTI]

    Boyer, Edmond

    Spectral measurement of the thermal excitation of a superconducting qubit A. Palacios-Laloy, F of a superconducting qubit 2 Superconducting qubits [1] are promising candidates for implementing a solid- state lying in their ground state. In most superconducting qubit experiments, the initialization is simply

  16. Photosynthesis 475 such measurements, photosynthesis is excited by

    E-Print Network [OSTI]

    Govindjee "Gov"

    under the sea where only green light penetrates, can supply the energy of this light to chlorophyll a, which has very weak absorption in the green region of the spectrum. Excitation energy is transferred by chlorophyll a in contributing energy to photosynthesis. An exception is fucoxan- thol, the carotenoid

  17. Chemical technology news from across RSC Publishing. Printing solar panels

    E-Print Network [OSTI]

    Rogers, John A.

    Publishing Chemical technology news from across RSC Publishing. Printing solar panels 22 January size) silicon microcells that connect together to form flexible solar panels. By stamping hundreds solar panels 2/8/2010http://www.rsc.org/Publishing/ChemTech/Volume/2010/02/printing_solar.asp #12;Page 2

  18. Software documentation, Page 1, Printed 7/11/01 Documentation

    E-Print Network [OSTI]

    Sommerville, Ian

    Software documentation, Page 1, Printed 7/11/01 Software Documentation Ian Sommerville Lancaster University, UK #12;Software documentation, Page 2, Printed 7/11/01 Introduction All large software development projects, irrespective of application, generate a large amount of associated documentation

  19. Fabrication of asymmetrically coated colloid particles by microcontact printing techniques

    E-Print Network [OSTI]

    Velev, Orlin D.

    Janus particles,4 non-spherical shaped ``acorn'' particles5,6 and unsymmetrical 3D macromoleculesFabrication of asymmetrically coated colloid particles by microcontact printing techniques Olivier particles by using a microcontact printing technique. Films of water-insoluble ionic surfactants deposited

  20. TCAUP FabLab 3D PRINTING ORDER FORM

    E-Print Network [OSTI]

    Kamat, Vineet R.

    TCAUP FabLab 3D PRINTING ORDER FORM: UNIQ NAME: Zcorp 400/310 10"x 8"x 8" ABS 8"x 8"x 12" or 10"x://www.taubmancollege.umich.edu/digital_tech/digital_fablab/ * ZCorp members below .125" are printed at student's own risk and expense. (reasonable .125"breakage

  1. 3D PRINTING FOR INTELLIGENT METALLIC STRUCTURES M. Strantza1

    E-Print Network [OSTI]

    Boyer, Edmond

    3D PRINTING FOR INTELLIGENT METALLIC STRUCTURES M. Strantza1 , D. De Baere2 , M. Rombouts3 , SSHM system is produced by 3D printing or additive manufacturing. Additive Manufacturing (AM) is a "process to enable its implementation. This work demonstrates the feasibility study of eSHM systems produced by 3D

  2. Shelves in ePrints Soton Creating a shelf

    E-Print Network [OSTI]

    Sóbester, András

    Shelves in ePrints Soton Creating a shelf 1. Log into ePrints and select Manage Shelves towards top Shelf button to create further shelves. When you are ready to make your shelf publicly visible click shelves 1. In the depoit process, click on the Shelves button (prior to the Deposit button

  3. Multi-Layer Inkjet Printed Contacts to Si

    SciTech Connect (OSTI)

    Curtis, C. J.; van Hest, M.; Miedaner, A.; Kaydanova, T.; Smith, L.; Ginley, D. S.

    2005-11-01T23:59:59.000Z

    Ag, Cu, and Ni metallizations were inkjet printed with near vacuum deposition quality. The approach developed can be easily extended to other conductors such as Pt, Pd, Au, etc. Thick highly conducting lines of Ag and Cu demonstrating good adhesion to glass, Si, and printed circuit board (PCB) have been printed at 100-200 deg C in air and N2 respectively. Ag grids were inkjet-printed on Si solar cells and fired through the silicon nitride AR layer at 850 deg C, resulting in 8% cells. Next generation inks, including an ink that etches silicon nitride, have now been developed. Multi-layer inkjet printing of the etching ink followed by Ag ink produced contacts under milder conditions and gave solar cells with efficiencies as high as 12%.

  4. Print

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015 < prev next > Sun Mon2015DepartmentPolicy|maneras fáciles de

  5. Print

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)IntegratedSpeedingTechnical News, information andNetarchiveScience,Area maneras

  6. Print

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible forPortsmouth/Paducah47,193.7 348,016.0stellaratorsMid-AmericaGridDelegations,Route

  7. Print

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible forPortsmouth/Paducah47,193.7 348,016.0stellaratorsMid-AmericaGridDelegations,RouteGFDL

  8. Print

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible forPortsmouth/Paducah47,193.7 348,016.0stellaratorsMid-AmericaGridDelegations,RouteGFDL

  9. Toward the excited isoscalar meson spectrum from lattice QCD

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Edwards, Robert G.; Dudek, Jozef J.; Thomas, Christopher Edward; Guo, Peng

    2013-11-01T23:59:59.000Z

    We report on the extraction of an excited spectrum of isoscalar mesons using lattice QCD. Calculations on several lattice volumes are performed with a range of light quark masses corresponding to pion masses down to about ~400 MeV. The distillation method enables us to evaluate the required disconnected contributions with high statistical precision for a large number of meson interpolating fields. We find relatively little mixing between light and strange in most JPC channels; one notable exception is the pseudoscalar sector where the approximate SU(3)F octet, singlet structure of the ?, ?' is reproduced. We extract exotic JPC states, identifiedmore »as hybrid mesons in which an excited gluonic field is coupled to a color-octet qqbar pair, along with non-exotic hybrid mesons embedded in a qqbar-like spectrum.« less

  10. Entanglement of low-energy excitations in Conformal Field Theory

    E-Print Network [OSTI]

    Francisco Castilho Alcaraz; Miguel Ibanez Berganza; German Sierra

    2011-01-28T23:59:59.000Z

    In a quantum critical chain, the scaling regime of the energy and momentum of the ground state and low lying excitations are described by conformal field theory (CFT). The same holds true for the von Neumann and Renyi entropies of the ground state, which display a universal logarithmic behaviour depending on the central charge. In this letter we generalize this result to those excited states of the chain that correspond to primary fields in CFT. It is shown that the n-th Renyi entropy is related to a 2n-point correlator of primary fields. We verify this statement for the critical XX and XXZ chains. This result uncovers a new link between quantum information theory and CFT.

  11. Clustered Chimera States in Systems of Type-I Excitability

    E-Print Network [OSTI]

    Andrea Vüllings; Johanne Hizanidis; Iryna Omelchenko; Philipp Hövel

    2014-07-20T23:59:59.000Z

    Chimera is a fascinating phenomenon of coexisting synchronized and desynchronized behaviour that was discovered in networks of nonlocally coupled identical phase oscillators over ten years ago. Since then, chimeras were found in numerous theoretical and experimental studies and more recently in models of neuronal dynamics as well. In this work, we consider a generic model for a saddle-node bifurcation on a limit cycle representative for neural excitability type I. We obtain chimera states with multiple coherent regions (clustered chimeras/multi-chimeras) depending on the distance from the excitability threshold, the range of nonlocal coupling as well as the coupling strength. A detailed stability diagram for these chimera states as well as other interesting coexisting patterns like traveling waves are presented.

  12. Toward the excited isoscalar meson spectrum from lattice QCD

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Edwards, Robert G. [JLAB; Dudek, Jozef J. [JLAB, Old Dominion U.; Thomas, Christopher Edward [Trinity College, Dublin; Guo, Peng [Indiana U.

    2013-11-01T23:59:59.000Z

    We report on the extraction of an excited spectrum of isoscalar mesons using lattice QCD. Calculations on several lattice volumes are performed with a range of light quark masses corresponding to pion masses down to about ~400 MeV. The distillation method enables us to evaluate the required disconnected contributions with high statistical precision for a large number of meson interpolating fields. We find relatively little mixing between light and strange in most JPC channels; one notable exception is the pseudoscalar sector where the approximate SU(3)F octet, singlet structure of the ?, ?' is reproduced. We extract exotic JPC states, identified as hybrid mesons in which an excited gluonic field is coupled to a color-octet qqbar pair, along with non-exotic hybrid mesons embedded in a qqbar-like spectrum.

  13. Enhanced Electromagnetic Chirality by Locally Excited Surface Plasmon Polaritons

    E-Print Network [OSTI]

    Alizadeh, M H

    2015-01-01T23:59:59.000Z

    The possibility to enhance chiral light-matter interactions through plasmonic nanostructures provides entirely new opportunities for greatly improving the detection limits of chiroptical spectroscopies down to the single molecule level. The most pronounced of these chiral interactions occur in the ultraviolet (UV) range of the electromagnetic spectrum, which is difficult to access with conventional localized plasmon resonance based sensors. Although Surface Plasmon Polaritons (SPPs) on noble metal films can sustain resonances in the desired spectral range, their transverse magnetic nature has been an obstacle for enhancing chiroptical effects. Here we demonstrate, both analytically and numerically, that SPPs excited by near-field sources can exhibit rich and non-trivial chiral characteristics. In particular, we show that the excitation of SPPs by a chiral source not only results in a locally enhanced optical chirality but also achieves manifold enhancement of net optical chirality. Our finding that SPPs facil...

  14. Toward the excited isoscalar meson spectrum from lattice QCD

    SciTech Connect (OSTI)

    Edwards, Robert G. [JLAB; Dudek, Jozef J. [JLAB, Old Dominion U.; Thomas, Christopher Edward [Trinity College, Dublin; Guo, Peng [Indiana U.

    2013-11-01T23:59:59.000Z

    We report on the extraction of an excited spectrum of isoscalar mesons using lattice QCD. Calculations on several lattice volumes are performed with a range of light quark masses corresponding to pion masses down to about ~400 MeV. The distillation method enables us to evaluate the required disconnected contributions with high statistical precision for a large number of meson interpolating fields. We find relatively little mixing between light and strange in most JPC channels; one notable exception is the pseudoscalar sector where the approximate SU(3)F octet, singlet structure of the ?, ?' is reproduced. We extract exotic JPC states, identified as hybrid mesons in which an excited gluonic field is coupled to a color-octet qqbar pair, along with non-exotic hybrid mesons embedded in a qqbar-like spectrum.

  15. Bistability in quantum nonlinear oscillator excited by stochastic force

    E-Print Network [OSTI]

    Igor Protsenko; Evgenii Protsenko; Alexander Uskov

    2015-01-03T23:59:59.000Z

    We present approximate analytical method of analysis of stationary states of nonlinear quantum systems with the noise. As an example we consider quantum nonlinear oscillator excited by fluctuating force and found parameter regions with more than one stationary solutions. Existence of such region is the necessary condition for bistability. We neglect by fluctuations in the amplitude of oscillations but do not neglect by fluctuations in its phase. Then oscillator noise power spectrum depends on oscillator mean energy n, which leads to nonlinear integral equation for n. Analytical solution of this equation can be found. Stationary states of the oscillator are found for various spectrums of fluctuations of the exciting force. Linear stability analysis of stationary states was carried out.

  16. Relativistic Coulomb excitation within Time Dependent Superfluid Local Density Approximation

    E-Print Network [OSTI]

    I. Stetcu; C. Bertulani; A. Bulgac; P. Magierski; K. J. Roche

    2015-01-13T23:59:59.000Z

    Within the framework of the unrestricted time-dependent density functional theory, we present for the first time an analysis of the relativistic Coulomb excitation of the heavy deformed open shell nucleus $^{238}$U. The approach is based on Superfluid Local Density Approximation (SLDA) formulated on a spatial lattice that can take into account coupling to the continuum, enabling self-consistent studies of superfluid dynamics of any nuclear shape. We have computed the energy deposited in the target nucleus as a function of the impact parameter, finding it to be significantly larger than the estimate using the Goldhaber-Teller model. The isovector giant dipole resonance, the dipole pygmy resonance and giant quadrupole modes were excited during the process. The one body dissipation of collective dipole modes is shown to lead a damping width $\\Gamma_\\downarrow \\approx 0.4$ MeV and the number of pre-equilibrium neutrons emitted has been quantified.

  17. Wind turbine blade testing system using base excitation

    DOE Patents [OSTI]

    Cotrell, Jason; Thresher, Robert; Lambert, Scott; Hughes, Scott; Johnson, Jay

    2014-03-25T23:59:59.000Z

    An apparatus (500) for fatigue testing elongate test articles (404) including wind turbine blades through forced or resonant excitation of the base (406) of the test articles (404). The apparatus (500) includes a testing platform or foundation (402). A blade support (410) is provided for retaining or supporting a base (406) of an elongate test article (404), and the blade support (410) is pivotally mounted on the testing platform (402) with at least two degrees of freedom of motion relative to the testing platform (402). An excitation input assembly (540) is interconnected with the blade support (410) and includes first and second actuators (444, 446, 541) that act to concurrently apply forces or loads to the blade support (410). The actuator forces are cyclically applied in first and second transverse directions. The test article (404) responds to shaking of its base (406) by oscillating in two, transverse directions (505, 507).

  18. Excited Carrier Dynamics of ?-Cr2O3/?-Fe2O3 Core...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Excited Carrier Dynamics of ?-Cr2O3?-Fe2O3 Core-Shell Nanostructures. Excited Carrier Dynamics of ?-Cr2O3?-Fe2O3 Core-Shell Nanostructures. Abstract: In...

  19. Excitation of forced ion acoustic waves, large plasma sheets, and magnetic field fluctuations over Gakona, Alaska

    E-Print Network [OSTI]

    Cohen, Joel (Joel A.)

    2009-01-01T23:59:59.000Z

    Two research subjects: (1) excitation of "forced ion acoustic waves", and (2) "simultaneous excitation of plasma density fluctuations and geomagnetic field fluctuations" are reported in my M.S. thesis. The data was acquired ...

  20. Multiphase autoresonant excitations in discrete nonlinear Schrdinger systems Y. Gopher and L. Friedland

    E-Print Network [OSTI]

    Friedland, Lazar

    Multiphase autoresonant excitations in discrete nonlinear Schrödinger systems Y. Gopher and L September 2005 Large amplitude, multiphase solutions of periodic discrete nonlinear Schrödinger NLS systems of an external parameter driving frequency . Numerical examples of excitation of multiphase waves and periodic

  1. An iterative technique for refinement of selective excitations for magnetic resonance imaging

    E-Print Network [OSTI]

    Lebsack, Eliot Todd

    1999-01-01T23:59:59.000Z

    Selective RF pulses are needed or many application in magnetic resonance imaging (MRI). The desired excitation profile is omen used as the spectrum of the applied RF pulse; the modulation waveform of the RF pulse which approximately excites...

  2. Ultrafast Dynamics of 1,3-Cyclohexadiene in Highly Excited States

    E-Print Network [OSTI]

    Minitti, Michael P.

    2011-01-01T23:59:59.000Z

    The ultrafast dynamics of 1,3-cyclohexadiene has been investigated via structurally sensitive Rydberg electron binding energies and shown to differ upon excitation to the 1B state and the 3p Rydberg state. Excitation of ...

  3. Dynamics of excitation pulses with attractive interaction: Kinematic analysis and chemical wave experiments

    E-Print Network [OSTI]

    Steinbock, Oliver

    Dynamics of excitation pulses with attractive interaction: Kinematic analysis and chemical wave present a theoretical analysis of stacking and destacking wave trains in excitable reaction-diffusion systems with anomalous velocity-wavelength dependence. For linearized dispersion relations, kinematic

  4. Decays of excited baryons in the large Nc expansion of QCD

    SciTech Connect (OSTI)

    Jose Goity; Norberto Scoccola

    2006-05-06T23:59:59.000Z

    We present the analysis of the decay widths of excited baryons in the framework of the 1/Nc expansion of QCD. These studies are performed up to order 1/Nc and include both positive and negative parity excited baryons.

  5. Excitation of fast waves near the mean gyrofrequency

    SciTech Connect (OSTI)

    Platt, R.C.; McWilliams, R.

    1986-11-03T23:59:59.000Z

    Fast waves with frequencies near the mean gyrofrequency (..omega..--(..omega../sub c//sub i/..omega../sub ce/)/sup 1/2/) were excited in a toroidal, magnetized plasma. Experimental measurements were made of wavelengths and phase velocities perpendicular to the toroidal magnetic field, and wave energy trajectories in the plasma, varying wave frequency, plasma density, and magnetic field values. Experimental results agree with predictions from the cold-plasma dispersion relation.

  6. Development of laser excited atomic fluorescence and ionization methods

    SciTech Connect (OSTI)

    Winefordner, J.D.

    1991-01-01T23:59:59.000Z

    Progress report: May 1, 1988 to December 31, 1991. The research supported by DE-FG05-88ER13881 during the past (nearly) 3 years can be divided into the following four categories: (1) theoretical considerations of the ultimate detection powers of laser fluorescence and laser ionization methods; (2) experimental evaluation of laser excited atomic fluorescence; (3) fundamental studies of atomic and molecular parameters in flames and plasmas; (4) other studies.

  7. Comment on Magnetic Monopole Excitations in Spin Ice

    E-Print Network [OSTI]

    Subir Ghosh

    2008-01-21T23:59:59.000Z

    It has been proposed recently \\cite{son} that excitations in Spin Ice can be of the form of magnetic monopoles that does not obey the Dirac Quantization Condition. It is also well known \\cite{rj} that the above scenario leads to non-associativity among translation generators. It will be interesting to see how the monopole picture in Spin Ice survives in the light of the latter observation.

  8. Temperature dependence of the magnetic excitations in Gd

    SciTech Connect (OSTI)

    Cable, J.W.; Nicklow, R.M.; Wakabayashi, N.

    1985-08-01T23:59:59.000Z

    Magnetic excitation spectra were measured for Gd in the and directions over the temperature range from 9 to 320/sup 0/K (T/sub c/ = 292.7/sup 0/K). Spin-wave-like modes are observed at T greater than or equal to T/sub c/. The critical wavevector for the appearance of these modes is proportional to the inverse correlation length.

  9. Mean field approximation for noisy delay coupled excitable neurons

    E-Print Network [OSTI]

    Nikola Buric; Dragana Rankovic; Kristina Todorovic; Nebojsa Vasovic

    2010-03-26T23:59:59.000Z

    Mean field approximation of a large collection of FitzHugh-Nagumo excitable neurons with noise and all-to-all coupling with explicit time-delays, modelled by $N\\gg 1$ stochastic delay-differential equations is derived. The resulting approximation contains only two deterministic delay-differential equations but provides excellent predictions concerning the stability and bifurcations of the averaged global variables of the exact large system.

  10. A Docking Casette For Printed Circuit Boards

    DOE Patents [OSTI]

    Barringer, Dennis R. (Wallkill, NY); Seminaro, Edward J. (Milton, NY); Toffler, Harold M. (Newburgh, NY)

    2003-08-19T23:59:59.000Z

    A docking apparatus for printed circuit boards including a cassette housing, having a housing base, a housing cover and a housing wall, wherein the housing base and the housing wall are disposed relative to each other so as to define a housing cavity for containing a printed circuit board and wherein the housing wall includes a cable opening disposed so as to be communicated with the housing cavity, a linkage mechanism, wherein the linkage mechanism includes an engagement configuration and a disengagement configuration and wherein the linkage mechanism is disposed so as to be associated with the cassette housing and a housing bezel, wherein the housing bezel is disposed relative to the cassette housing so as to be associated with the cable opening.

  11. Excitation energy dependence of fission in the mercury region

    E-Print Network [OSTI]

    McDonnell, J D; Sheikh, J A; Staszczak, A; Warda, M

    2014-01-01T23:59:59.000Z

    Background: Recent experiments on beta-delayed fission reported an asymmetric mass yield in the neutron-deficient nucleus 180Hg. Earlier experiments in the mass region A=190-200 close to the beta-stability line, using the (p,f) and (\\alpha,f) reactions, observed a more symmetric distribution of fission fragments. While the beta-delayed fission of 180Hg can be associated with relatively low excitation energy, this is not the case for light-ion reactions, which result in warm compound nuclei. Purpose: To elucidate the roles of proton and neutron numbers and excitation energy in determining symmetric and asymmetric fission yields, we compute and analyze the isentropic potential energy surfaces of 174,180,198Hg and 196,210Po. Methods: We use the finite-temperature superfluid nuclear density functional theory, for excitation energies up to E*=30MeV and zero angular momentum. For our theoretical framework, we consider the Skyrme energy density functional SkM* and a density-dependent pairing interaction. Results: Fo...

  12. EVIDENCE FOR THE PHOTOSPHERIC EXCITATION OF INCOMPRESSIBLE CHROMOSPHERIC WAVES

    SciTech Connect (OSTI)

    Morton, R. J.; Verth, G.; Fedun, V.; Erdelyi, R. [Solar Physics and Space Plasma Research Centre (SP2RC), University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH (United Kingdom); Shelyag, S., E-mail: richard.morton@northumbria.ac.uk [Astrophysics Research Centre, School of Mathematics and Physics, Main Physics Building, Queen's University Belfast, Belfast, County Antrim BT7 1NN (United Kingdom)

    2013-05-01T23:59:59.000Z

    Observing the excitation mechanisms of incompressible transverse waves is vital for determining how energy propagates through the lower solar atmosphere. We aim to show the connection between convectively driven photospheric flows and incompressible chromospheric waves. The observations presented here show the propagation of incompressible motion through the quiet lower solar atmosphere, from the photosphere to the chromosphere. We determine photospheric flow vectors to search for signatures of vortex motion and compare results to photospheric flows present in convective simulations. Further, we search for the chromospheric response to vortex motions. Evidence is presented that suggests incompressible waves can be excited by the vortex motions of a strong magnetic flux concentration in the photosphere. A chromospheric counterpart to the photospheric vortex motion is also observed, presenting itself as a quasi-periodic torsional motion. Fine-scale, fibril structures that emanate from the chromospheric counterpart support transverse waves that are driven by the observed torsional motion. A new technique for obtaining details of transverse waves from time-distance diagrams is presented and the properties of transverse waves (e.g., amplitudes and periods) excited by the chromospheric torsional motion are measured.

  13. Infrared imaging results of an excited planar jet

    SciTech Connect (OSTI)

    Farrington, R.B.

    1991-12-01T23:59:59.000Z

    Planar jets are used for many applications including heating, cooling, and ventilation. Generally such a jet is designed to provide good mixing within an enclosure. In building applications, the jet provides both thermal comfort and adequate indoor air quality. Increased mixing rates may lead to lower short-circuiting of conditioned air, elimination of dead zones within the occupied zone, reduced energy costs, increased occupant comfort, and higher indoor air quality. This paper discusses using an infrared imaging system to show the effect of excitation of a jet on the spread angle and on the jet mixing efficiency. Infrared imaging captures a large number of data points in real time (over 50,000 data points per image) providing significant advantages over single-point measurements. We used a screen mesh with a time constant of approximately 0.3 seconds as a target for the infrared camera to detect temperature variations in the jet. The infrared images show increased jet spread due to excitation of the jet. Digital data reduction and analysis show change in jet isotherms and quantify the increased mixing caused by excitation. 17 refs., 20 figs.

  14. Proceedings of the 1984 workshop on high-energy excitations in condensed matter. Volume I

    SciTech Connect (OSTI)

    Silver, R.N. (comp.)

    1984-12-01T23:59:59.000Z

    This volume covers neutron scattering inelastic instrumentation, x-ray scattering inelastic instrumentation, and magnetic excitations. (GHT)

  15. Printed Name: Page 1 of 9

    E-Print Network [OSTI]

    Walba, David

    on each page of the exam. H He Li Be B C N O F Na Mg Al Si P S Ne Cl Ar Br I 1 2 3 4 5 6 7 8 9 10 11 12 13Printed Name: Page 1 of 9 CHEM 3311 (300), Fall 2014 Professor Walba Third Hour Exam November 18: _____________________________ Recitation day and time: __________________________ This is a closed-book exam. The use of notes, calculators

  16. Printed Name: Page 1 of 7

    E-Print Network [OSTI]

    Walba, David

    on each page of the exam. H He Li Be B C N O F Na Mg Al Si P S Ne Cl Ar Br I 1 2 3 4 5 6 7 8 9 10 11 12 13Printed Name: Page 1 of 7 CHEM 3311-100, Fall 2013 Professor Walba Second Hour Exam October 22: ________________________________ Recitation day and time: _____________________________ This is a closed-book exam. The use of notes

  17. Printed Name: Page 1 of 6

    E-Print Network [OSTI]

    Walba, David

    on each page of the exam. H He Li Be B C N O F Na Mg Al Si P S Ne Cl Ar Br I 1 2 3 4 5 6 7 8 9 10 11 12 13Printed Name: Page 1 of 6 CHEM 3311-100, Fall 2013 Professor Walba First Hour Exam September 24: ________________________________ Recitation day and time: _____________________________ This is a closed-book exam. The use of notes

  18. Printed Name: Page 1 of 8

    E-Print Network [OSTI]

    Walba, David

    on each page of the exam. H He Li Be B C N O F Na Mg Al Si P S Ne Cl Ar Br I 1 2 3 4 5 6 7 8 9 10 11 12 13Printed Name: Page 1 of 8 CHEM 3311-100, Fall 2013 Professor Walba Third Hour Exam November 19: ________________________________ Recitation day and time: _____________________________ This is a closed-book exam. The use of notes

  19. Multiple frequency printed slot and dipole antennas

    E-Print Network [OSTI]

    Kolsrud, Arild

    1997-01-01T23:59:59.000Z

    . Analysis. . D. Single Frequency Slot Antenna. , , , 32 . 41 E. Dual Frequency Slot Antenna. F. Chapter Summary. 48 Page CHAPTER IV PRINTED CPW-FED CPS DIPOLE. . . . . . . 53 A. Introduction. 53 B. Background. 54 C. Analysis. . D. Single... on the structure affects the performance by looking at the current distribution. Far-field radiation patterns of a structure can be calculated from the current distribution output data file. C. Chapter Summary Sonnet is mainly used for circuit structures, since...

  20. AIP ADVANCES 1, 022136 (2011) Comparison of photothermal and piezoacoustic excitation

    E-Print Network [OSTI]

    Grütter, Peter

    2011-01-01T23:59:59.000Z

    (2011) self-excitation (or a phase-locked-loop (PLL)) strongly depends on the cantilever excitationAIP ADVANCES 1, 022136 (2011) Comparison of photothermal and piezoacoustic excitation methods for frequency and phase modulation atomic force microscopy in liquid environments A. Labuda,1 K. Kobayashi,2 D

  1. Temporal Decorrelation of Collective Oscillations in Neural Networks with Local Inhibition and Long-Range Excitation

    E-Print Network [OSTI]

    Battaglia, Demian

    inhibition. When long-range excitation is weak, these oscillations phase lock with a phase shift dependent-Range Excitation Demian Battaglia, Nicolas Brunel, and David Hansel Universite´ Paris Descartes, Laboratoire de on the strength of local inhibition. Increasing the strength of long-range excitation induces a transition

  2. Spectroscopy, polarization and nonadiabatic dynamics of electronically excited Ba(Ar)n clusters: Theory and experiment

    E-Print Network [OSTI]

    Krylov, Anna I.

    Spectroscopy, polarization and nonadiabatic dynamics of electronically excited Ba(Ar)n clusters, France Received 13 September 1995; accepted 17 November 1995 Molecular Dynamics simulations using, a comprehensive picture of the excited state dynamics is given. It is found that upon excitation, energy

  3. Brownian Dynamics Model of Excited-State Relaxation in Solutions of Conjugated Oligomers

    E-Print Network [OSTI]

    Yaron, David

    1 Brownian Dynamics Model of Excited-State Relaxation in Solutions of Conjugated Oligomers Nicolae, Pittsburgh, Pennsylvania 15213. Excited state relaxation, conjugated polymers, Brownian dynamics. The effects, of the oligomer. A simple molecular mechanical form is used for the ground electronic state. The excitation energy

  4. INNER SHELL EXCITATION OF ATOMS AND MOLECULES BY ELECTRON IMPACT WITH HIGH ENERGY RESOLUTION

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    INNER SHELL EXCITATION OF ATOMS AND MOLECULES BY ELECTRON IMPACT WITH HIGH ENERGY RESOLUTION F. H resolution energy loss spectra for inner shell excited states, (2) the observa- tion of inner shell excited are the subject of the present review. The inner shell states that can usefully be studied with energy resolutions

  5. Excitation of multiphase waves of the nonlinear Schrdinger equation by capture into resonances L. Friedland*

    E-Print Network [OSTI]

    Friedland, Lazar

    Excitation of multiphase waves of the nonlinear Schrödinger equation by capture into resonances L; published 14 March 2005 A method for adiabatic excitation and control of multiphase N-band waves is illustrated in simulations, where the excited multiphase waves are analyzed via the spectral approach

  6. For additional information, please e-mail ctsc_noveltech@med.cornell.edu REQUEST FOR CTSC 3D PRINTING APPLICATIONS

    E-Print Network [OSTI]

    Chen, Tsuhan

    for commercialization 3D Printing Novel Technology Award $10,000 (direct costs) with use of the New CTSC 3D Printing with 3D printing technology in order to rapidly develop novel biomedical products with application) and importance of funding to feasibility of the project Research Plan (use of the CTSC 3D Printing Core Facility

  7. Print-and-Peel Fabrication for Microfluidics: What’s in it for Biomedical Applications?

    E-Print Network [OSTI]

    Thomas, Marlon S.; Millare, Brent; Clift, Joseph M.; Bao, Duoduo; Hong, Connie; Vullev, Valentine I.

    2010-01-01T23:59:59.000Z

    Solid-object printers have the capability for 3D printing,single-step 3D molding without a solid-object printer. 33,763D) printing of masters using a solid-object printer.

  8. 3-D Printed Electrically and Optically Paced Skeletal Muscle Based Biological Machines Caroline Cvetkovic, Bioengineering

    E-Print Network [OSTI]

    Kilian, Kristopher A.

    3-D Printed Electrically and Optically Paced Skeletal Muscle Based Biological Machines Caroline Research Aims and Goals · To use 3D printing technologies to fabricate the structure of the biological

  9. Local Motors Begins Their Six Day Quest to 3D Print the 'Strati...

    Broader source: Energy.gov (indexed) [DOE]

    Local Motors Begins Their Six Day Quest to 3D Print the 'Strati' Car Live at IMTS Local Motors Begins Their Six Day Quest to 3D Print the 'Strati' Car Live at IMTS An article...

  10. Analysis of the capabilities of continuous high-speed microcontact printing

    E-Print Network [OSTI]

    Khanna, Kanika

    2008-01-01T23:59:59.000Z

    Microcontact printing uses elastomeric stamps to transfer ink onto a substrate by the process of self-assembly. It has the capability to print features as small as 200nm over large areas. Because of this it has many potential ...

  11. High green density metal parts by vibrational compaction of dry powder in three dimensional printing process

    E-Print Network [OSTI]

    Gregorski, Steven Joseph

    1996-01-01T23:59:59.000Z

    The material properties and dimensional accuracy of metal tooling produced by the Three Dimensional Printing process can be enhanced by increasing the green density of the 3D printed part. Green density is the ratio of ...

  12. asymmetric 3d in-vitro: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a 3D...

  13. anion-templated 3d heterobimetallic: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a 3D...

  14. In July of 2003, the organizations of Printing Services; Planning, Construction & Maintenance; Parking; Campus

    E-Print Network [OSTI]

    Shim, Moonsub

    , systems & controls, and waste transfer & recycling. Planning Division: The primary focus of our Planning · Parking · Printing · Space Management · Stores · Waste Management & Recycling · Copying ServicesAbout In July of 2003, the organizations of Printing Services; Planning, Construction & Maintenance

  15. Design and analysis of high-speed continuous micro-contact printing

    E-Print Network [OSTI]

    Shen, Xiao, M. Eng. Massachusetts Institute of Technology

    2008-01-01T23:59:59.000Z

    Micro-contact printing ([mu]CP) is a technology that prints directly off a patterned elastomeric stamp by transferring only a molecular monolayer of ink to a surface, providing a low-cost, high resolution and widely ...

  16. Precision control of cylindrical stamp contact in a continuous roll-to-roll microcontact printing machine

    E-Print Network [OSTI]

    Libert, Adam M. (Adam Marcus)

    2014-01-01T23:59:59.000Z

    Microcontact printing is a form of soft lithography that uses a molded elastomeric stamp to print patterns with micron and sub-micron scale features. This is an effective low-cost technique for replicating master patterns ...

  17. Secretary Moniz Tours the 3D-Printed Shelby Cobra | Department...

    Energy Savers [EERE]

    of the Shelby Cobra 500 pounds of printed parts were produced in 24 hours The BAAM 3D printing system used less than half the amount of energy, or 1,700 Btu per pound of parts,...

  18. Evaporative printing of organic materials and metals and development of organic memories

    E-Print Network [OSTI]

    Kang, Sung Hoon, 1974-

    2004-01-01T23:59:59.000Z

    The advantages of directed printing make it the ideal fabrication tool for the ubiquitous electronic technologies of the future. However, direct printing techniques such as ink-jet technology, are currently limited to ...

  19. Toward Nanoscale Three-Dimensional Printing: Nanowalls Built of Electrospun Nanofibers

    E-Print Network [OSTI]

    Kim, Ho-Young

    . This novel 3D printing scheme can be applied to the development of various 3D nanoscale objects including manufacturing for several decades.1 So- called 3D printing is reaching a stage where the desired products can

  20. Impact of 3D printing on global supply chains by 2020

    E-Print Network [OSTI]

    Bhasin, Varun

    2014-01-01T23:59:59.000Z

    This thesis aims to quantitatively estimate the potential impact of 3D Printing on global supply chains. Industrial adoption of 3D Printing has been increasing gradually from prototyping to manufacturing of low volume ...

  1. Design and manufacturing of high precision roll-to-roll multilayer printing machine -- machine upgrade

    E-Print Network [OSTI]

    Zhu, Yufei

    2009-01-01T23:59:59.000Z

    In 2008, a group of MIT Master of Engineering students built a roll to roll machine for printing thiol onto a flexible gold substrate by self-assembly. The machine demonstrated good performance in high speed printing (400 ...

  2. Evaluation of PC-ISO for customized, 3D printed, gynecologic 192Ir HDR brachytherapy applicators

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    2015 253 Cunha et al. : PC-ISO for 3D printed brachytherapy1, 2015 Evaluation of PC-ISO for customized, 3D printed,attenuation properties of PC-ISO, a commercially available,

  3. amp: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    shows the Bode magnitude plots for both VoVi and A (j). The figure shows Leach Jr.,W. Marshall 76 cAMP-Dependent Protein Kinase A Selects the Excited State of the Membrane...

  4. METAMATERIALS: Large-area printed 3D negative-index metamaterial is flexible -Laser Focus World http://www.laserfocusworld.com/articles/print/volume-47/issue-8/world-news/metamaterials-large-area-printed-3d-negative-index-metamaterial-is-flexible.html[8/1

    E-Print Network [OSTI]

    Rogers, John A.

    METAMATERIALS: Large-area printed 3D negative-index metamaterial is flexible - Laser Focus World-area printed 3D negative-index metamaterial is flexible METAMATERIALS: Large-area printed 3D negative, with the advent of a printing process that produces large-area 3D multilayer optical NIMs --8.7 × 8.7 cm square

  5. Suitability for 3D Printed Parts for Laboratory Use

    SciTech Connect (OSTI)

    Zwicker, Andrew P. [PPPL; Bloom, Josh [PPPL; Albertson, Robert [PPPL; Gershman, Sophia [PPPL

    2014-08-01T23:59:59.000Z

    3D printing has become popular for a variety of users, from industrial to the home hobbyist, to scientists and engineers interested in producing their own laboratory equipment. In order to determine the suitability of 3D printed parts for our plasma physics laboratory, we measured the accuracy, strength, vacuum compatibility, and electrical properties of pieces printed in plastic. The flexibility of rapidly creating custom parts has led to the 3D printer becoming an invaluable resource in our laboratory and is equally suitable for producing equipment for advanced undergraduate laboratories.

  6. Aerodynamic effects in ink-jet printing on a moving web

    E-Print Network [OSTI]

    Hsiao, W.-K.; Hoath, S.D.; Martin, G.D.; Hutchings, I.M.

    2012-01-01T23:59:59.000Z

    applications such as single-pass graph- ical printing or even mass-production of printed electronics, there is a common trend towards greatly increased printing throughput achieved by printing on a continuously moving web substrate. To achieve this, both... at substrate speeds up to 2 m/s. However, as they could not obtain reliable PIV measure- ments within 600 µm of the moving substrate, there is still uncer- tainty in the validity of this conclusion. Additionally, their simula- tion predicted...

  7. Selective population and neutron decay of the first excited state of semi-magic O-23

    E-Print Network [OSTI]

    A. Schiller; N. Frank; T. Baumann; D. Bazin; B. A. Brown; J. Brown; P. A. DeYoung; J. E. Finck; A. Gade; J. Hinnefeld; R. Howes; J. -L. Lecouey; B. Luther; W. A. Peters; H. Scheit; M. Thoennessen; J. A. Tostevin

    2006-12-21T23:59:59.000Z

    We have observed an excited state in the neutron-rich semi-magic nucleus O-23 for the first time. No such states have been found in previous searches using gamma-ray spectroscopy. The observation of a resonance in n-fragment coincidence measurements confirms the speculation in the literature that the lowest excited state is neutron unbound and establishes positive evidence for a 2.8(1) MeV excitation energy of the first excited state in O-23. The non-observation of a predicted second excited state is explained assuming selectivity of inner-shell knockout reactions.

  8. ROBOPuppet: Low-Cost, 3D Printed Miniatures for Teleoperating Full-Size Robots

    E-Print Network [OSTI]

    Hauser, Kris

    ROBOPuppet: Low-Cost, 3D Printed Miniatures for Teleoperating Full-Size Robots Anna Eilering of the robot links, which are then 3D printed and assembled. This procedure is generalizable to variety to target robot. smaller scale suitable for desktop use. The puppet is a 3D- printed miniature of the target

  9. Build-to-Last: Strength to Weight 3D Printed Objects Andrei Sharf2

    E-Print Network [OSTI]

    Sharf, Andrei

    Build-to-Last: Strength to Weight 3D Printed Objects Lin Lu1 Andrei Sharf2 Haisen Zhao1 Yuan Wei1-right). The 3D printed hollowed solid is built-to-last using our interior structure (right). Abstract stress. Thus, our system allows to build-to-last 3D printed objects with large control over

  10. Custom 3D-Printed Rollers for Frieze Pattern Cookies Robert Hanson

    E-Print Network [OSTI]

    Custom 3D-Printed Rollers for Frieze Pattern Cookies Robert Hanson Towson University, Emeritus a method for converting images of repeating patterns, e.g., Roman friezes or Escher tessellations, into 3D-printed the world of mathematics and the art of cooking. Fractal cookies based on stretching and folding [1] and 3D-printed

  11. A Series of Tubes: Adding Interactivity to 3D Prints Using Internal Pipes

    E-Print Network [OSTI]

    Zakhor, Avideh

    A Series of Tubes: Adding Interactivity to 3D Prints Using Internal Pipes Valkyrie Savage valkyrie flexibility and potential. Author Keywords Fabrication; 3D Printing; Interactive Objects; Design Tools ACM. Recently, human-computer interaction researchers have be- gun to explore adding interaction to 3D printed

  12. Researchers at the University of Alicante develop a method for recycling plastic with printed ink

    E-Print Network [OSTI]

    Escolano, Francisco

    Researchers at the University of Alicante develop a method for recycling plastic with printed ink printed ink on plastic films used in flexible packaging getting a product free from ink and suitable Group, allows the removal of printed ink through a physical-chemical treatment and retrieves the plastic

  13. Aerosol-Jet-Printed, 1 Volt HBridge Drive Circuit on Plastic with Integrated Electrochromic Pixel

    E-Print Network [OSTI]

    Kim, Chris H.

    Aerosol-Jet-Printed, 1 Volt HBridge Drive Circuit on Plastic with Integrated Electrochromic Pixel electrochromic (EC) pixel as large as 4 mm2 that is printed on the same substrate. All of the key components, flexible electronics, electrochromic pixel, transistor, capacitor, ion gel 1. INTRODUCTION Printing

  14. Understanding Wax Printing: A Simple Micropatterning Process for Paper-Based

    E-Print Network [OSTI]

    Prentiss, Mara

    Understanding Wax Printing: A Simple Micropatterning Process for Paper-Based Microfluidics Emanuel a detailed study on wax printing, a simple and inexpensive method for fabricating microfluidic devices in paper using a commercially avail- able printer and hot plate. The printer prints patterns of solid wax

  15. Brief communication Three-dimensional printing of hierarchical and tough mesoporous bioactive

    E-Print Network [OSTI]

    Cuniberti, Gianaurelio

    in bone regeneration by a modified 3-D printing technique using polyvinylalcohol (PVA) as a binder at high temperature. The 3-D printed MBG scaffolds obtained possess a high mechanical strength about 200 study indicates that 3-D printed MBG scaffolds may be an excellent candi- date for bone regeneration. Ó

  16. MANDATORY PRINTING CONTRACTS Division of Enterprise Operations, State Bureau of Procurement

    E-Print Network [OSTI]

    Sheridan, Jennifer

    @amerlitho.com W: American Litho Shari Beder T: (414) 342-5050 F: (414) 342-9950 Lot 3D Inks: 3 & up, Covers upMANDATORY PRINTING CONTRACTS Division of Enterprise Operations, State Bureau of Procurement Print or longer Envelopes (quantities 500-5,000), Printing Commercial & Catalog Envelopes Quantities: Commercial

  17. Novel Phase Change Inks for Printing Three-Dimensional Veronika Chovancova-Lovell ,

    E-Print Network [OSTI]

    Fleming, Paul D. "Dan"

    -dimensional (3D) printing comprising different waxes, tackifier and plasticizer resins, rheology modifiers in a conventional phase- change printer in order to create 3D printed structures. Differential scanning calorimetry, a low viscosity binder is printed onto a powder coating to fuse materials together in a pattern. 3D

  18. Department of Mechanical Engineering Spring 2013 3D Printed Medical Device

    E-Print Network [OSTI]

    Demirel, Melik C.

    PENNSTATE Department of Mechanical Engineering Spring 2013 3D Printed Medical Device Overview This project aimed to develop a 3D-printed everting structure for use in conjunction with current endosurgical/concept and that our main form of manufacturing revolved around 3D-printing, which allowed us to quickly make

  19. Manipulating complex network structures in virtual reality and 3D printing of the results

    E-Print Network [OSTI]

    Verschure, Paul

    Manipulating complex network structures in virtual reality and 3D printing of the results Alberto the results at any time for direct 3D printing. 1. INTRODUCTION Although its first appearance on the market can be tracked up to three decades ago, stereolithography (also known as 3D printing) has become

  20. Cost-effective Printing of 3D Objects with Skin-Frame Structures Weiming Wang,

    E-Print Network [OSTI]

    Deng, Jiansong

    ; Keywords: 3D printing, fabrication, frame structure, sparsity op- timization Corresponding author: yangzw@ustc.edu.cn (Zhouwang Yang) 1 Introduction Additive manufacturing (3D printing) enables fabrication of physi- cal techniques of 3D printing has received considerable attention for assisting users to generate desired

  1. Tracking @stemxcomet: Teaching Programming to Blind Students via 3D Printing, Crisis Management, and Twitter

    E-Print Network [OSTI]

    Kane, Shaun K.

    r Tracking @stemxcomet: Teaching Programming to Blind Students via 3D Printing, Crisis Management such as 3D printing offer an opportunity for students to write programs that produce tactile objects and suggests future directions for integrating data analysis and 3D printing into programming instruction

  2. Customization and 3D Printing: A Challenging Playground for Software Product Lines

    E-Print Network [OSTI]

    Boyer, Edmond

    Customization and 3D Printing: A Challenging Playground for Software Product Lines Mathieu Acher firstname.lastname@irisa.fr ABSTRACT 3D printing is gaining more and more momentum to build customized. We provide hints that SPL-alike techniques are practically used in 3D printing and thus relevant

  3. Computational Light Routing: 3D Printed Optical Fibers For Sensing and Display

    E-Print Network [OSTI]

    Computational Light Routing: 3D Printed Optical Fibers For Sensing and Display THIAGO PEREIRA or restrict themselves to light dif- fusion in volumes. We use multi-material 3D printing to fabricate objects Additional Key Words and Phrases: 3D printing, optical fibers ACM Reference Format: Pereira, T, Rusinkiewicz

  4. Bridging the Gap: Automated Steady Scaffoldings for 3D Printing Jrmie Dumas

    E-Print Network [OSTI]

    Lévy, Bruno

    Bridging the Gap: Automated Steady Scaffoldings for 3D Printing Jérémie Dumas Université de Figure 1: The upper leg of the Poppy robot (www.poppy-project.org) cannot be 3D printed on low cost FDM usage. Abstract Fused Filament Fabrication (FFF) is the process of 3D printing ob- jects from melted

  5. MAE SEMINAR Recent advances in Additive Manufacturing/3D Printing Technologies, Material Science and

    E-Print Network [OSTI]

    Mease, Kenneth D.

    MAE SEMINAR Recent advances in Additive Manufacturing/3D Printing Technologies, Material Science Samueli School of Engineering University of California Irvine 3D printing or Additive Manufacturing in different shapes. 3D printing is also considered distinct from traditional machining techniques, which

  6. Graphene Transistors Fabricated via Transfer-Printing In Device Active-Areas

    E-Print Network [OSTI]

    Graphene Transistors Fabricated via Transfer-Printing In Device Active-Areas on Large Wafer Xiaogan graphene islands from a graphite and then uses transfer printing to place the islands from the stamp from the printed graphene. The transistors show a hole and electron mobility of 3735 and 795 cm2/V

  7. Design and development of high precision elastomeric-stamp wrapping system for roll-to-roll multi-layer microcontact printing

    E-Print Network [OSTI]

    Datar, Charudatta Achyut

    2009-01-01T23:59:59.000Z

    Microcontact printing is an emerging printing technique that could potentially find application in the electronics industry. High-speed roll-to-roll equipment was built at Nano Terra, Inc in 2008, for microcontact printing. ...

  8. Relativistic Point Coupling Model for Vibrational Excitations in the Continuum

    SciTech Connect (OSTI)

    Ring, P.; Daoutidis, J. [Physics Department Technical University Munich, 85748 Garching (Germany); Litvinova, E. [Gesellschaft fuer Schwerionenforschung mbH, 64291 Darmstadt (Germany); Niksic, T.; Paar, N.; Vretenar, D. [Physics Department, Faculty of Science, University of Zagreb (Croatia)

    2009-08-26T23:59:59.000Z

    An implementation of the relativistic random phase approximation with the proper treatment of the continuum has been developed for the relativistic point coupling model and applied to investigate collective excitations in spherical nuclei. The results are compared with the spectral implementation of the same model. In heavy nuclei, where the escape width is negligible, we find an excellent agreement between both methods in the region of giant resonance and some discrepancies in the region of low-lying pygmy resonance. The differences are more pronounced in light nuclei due to the larger values of the escape widths.

  9. Excited State Effects in Nucleon Matrix Element Calculations

    SciTech Connect (OSTI)

    Constantia Alexandrou, Martha Constantinou, Simon Dinter, Vincent Drach, Karl Jansen, Theodoros Leontiou, Dru B Renner

    2011-12-01T23:59:59.000Z

    We perform a high-statistics precision calculation of nucleon matrix elements using an open sink method allowing us to explore a wide range of sink-source time separations. In this way the influence of excited states of nucleon matrix elements can be studied. As particular examples we present results for the nucleon axial charge g{sub A} and for the first moment of the isovector unpolarized parton distribution x{sub u-d}. In addition, we report on preliminary results using the generalized eigenvalue method for nucleon matrix elements. All calculations are performed using N{sub f} = 2+1+1 maximally twisted mass Wilson fermions.

  10. Excitation energy dependence of symmetry energy of finite nuclei

    E-Print Network [OSTI]

    S. K. Samaddar; J. N. De; X. Vinas; M. Centelles

    2007-10-11T23:59:59.000Z

    A finite range density and momentum dependent effective interaction is used to calculate the density and temperature dependence of the symmetry energy coefficient Csym(rho,T) of infinite nuclear matter. This symmetry energy is then used in the local density approximation to evaluate the excitation energy dependence of the symmetry energy coefficient of finite nuclei in a microcanonical formulation that accounts for thermal and expansion effects. The results are in good harmony with the recently reported experimental data from energetic nucleus-nucleus collisions.

  11. Radiative friction on an excited atom moving in vacuum

    E-Print Network [OSTI]

    Wei Guo

    2012-04-30T23:59:59.000Z

    It is known that, when an excited atom spontaneously emits one photon, two effects are produced. First, the atom's internal and external states are entangled with the states of the emitted photon. Second, the atom receives a momentum transfered from the photon. In this work, the dynamics of such an atom in vacuum is studied. Through a specific calculation, it is demonstrated that these effects cause the atom to experience, on average, a friction force opposite to its initial velocity. Properties of the force are also discussed.

  12. Integrated ultrasonic particle positioning and low excitation light fluorescence imaging

    SciTech Connect (OSTI)

    Bernassau, A. L.; Al-Rawhani, M.; Beeley, J.; Cumming, D. R. S. [School of Engineering, University of Glasgow, Glasgow, G12 8LT (United Kingdom)] [School of Engineering, University of Glasgow, Glasgow, G12 8LT (United Kingdom)

    2013-12-09T23:59:59.000Z

    A compact hybrid system has been developed to position and detect fluorescent micro-particles by combining a Single Photon Avalanche Diode (SPAD) imager with an acoustic manipulator. The detector comprises a SPAD array, light-emitting diode (LED), lenses, and optical filters. The acoustic device is formed of multiple transducers surrounding an octagonal cavity. By stimulating pairs of transducers simultaneously, an acoustic landscape is created causing fluorescent micro-particles to agglomerate into lines. The fluorescent pattern is excited by a low power LED and detected by the SPAD imager. Our technique combines particle manipulation and visualization in a compact, low power, portable setup.

  13. Coherent excitation of a strongly coupled quantum dot - cavity system

    E-Print Network [OSTI]

    Dirk Englund; Arka Majumdar; Andrei Faraon; Mitsuru Toishi; Nick Stoltz; Pierre Petroff; Jelena Vuckovic

    2009-02-19T23:59:59.000Z

    We have studied the coherent excitation of a strongly coupled QD/photonic crystal cavity system. Time-resolved reflectivity measurements show the vacuum Rabi oscillation of the dot in the cavity. Next, we considered the resonant driving of a cavity-detuned dot, which efficiently populates the cavity mode. This cavity-controlled read-out channel allows high-resolution single quantum dot spectroscopy. Autocorrelation measurements on the cavity mode show antibunching and suggest the use of the resonantly driven QD/cavity system as an on-demand source of single photons with potentially near-unity indistinguishability.

  14. Extreme events in excitable systems and mechanisms of their generation

    E-Print Network [OSTI]

    Gerrit Ansmann; Rajat Karnatak; Klaus Lehnertz; Ulrike Feudel

    2014-08-27T23:59:59.000Z

    We study deterministic systems, composed of excitable units of FitzHugh-Nagumo type, that are capable of self-generating and self-terminating strong deviations from their regular dynamics without the influence of noise or parameter change. These deviations are rare, short-lasting, and recurrent and can therefore be regarded as extreme events. Employing a range of methods we analyze dynamical properties of the systems, identifying features in the systems' dynamics that may qualify as precursors to extreme events. We investigate these features and elucidate mechanisms that may be responsible for the generation of the extreme events.

  15. Self-Excitation and Feedback Cooling of an Isolated Proton

    SciTech Connect (OSTI)

    Guise, N.; DiSciacca, J.; Gabrielse, G. [Department of Physics, Harvard University, Cambridge, Massachusetts 02138 (United States)

    2010-04-09T23:59:59.000Z

    The first one-proton self-excited oscillator (SEO) and one-proton feedback cooling are demonstrated. In a Penning trap with a large magnetic gradient, the SEO frequency is resolved to the high precision needed to detect a one-proton spin flip. This is after undamped magnetron motion is sideband cooled to a 14 mK theoretical limit, and despite random frequency shifts (typically larger than those from a spin flip) that take place every time sideband cooling is applied. The observations open a possible path towards a million-fold improved comparison of the p and p magnetic moments.

  16. Noise-induced energy excitation by a general environment

    E-Print Network [OSTI]

    Fernando C. Lombardo; Paula I. Villar

    2007-08-07T23:59:59.000Z

    We analyze the effects that general environments, namely ohmic and non-ohmic, at zero and high temperature induce over a quantum Brownian particle. We state that the evolution of the system can be summarized in terms of two main environmental induced physical phenomena: decoherence and energy activation. In this article we show that the latter is a post-decoherence phenomenon. As the energy is an observable, the excitation process is a direct indication of the system-environment entanglement particularly useful at zero temperature.

  17. Non-Gaussian features from Excited Squeezed Vacuum State

    E-Print Network [OSTI]

    Xubing Tang; Fang Gao; Yaoxiong Wan; Jianguang Wu; Feng Shuang

    2014-10-18T23:59:59.000Z

    In this work, we introduce a non-Gaussian quantum state named excited squeezed vacuum state (ESVS), which can be ustilized to describe quantum light field emitted from the multiphoton quantum process occurred in some restricted quantum systems. We investigate its nonclassical properties such as Wigner distribution in phase space, photon number distribution, the second-order autocorrelation and the quadrature fluctuations. By virtue of the Hilbert-Schmidt distance method, we quantify the non-Gaussianity of the ESVS. Due to the similar photon statistics, we examine the fidelity between the ESVS and the photon-subtraction squeezed vacuum state (PSSVS), and then find the optimal fidelity by monitoring the relevant parameters.

  18. Zonal flow excitation by drift waves in toroidal plasmas

    SciTech Connect (OSTI)

    L Chen; Z. Lin; R. White

    2000-06-13T23:59:59.000Z

    Recent 3D gyrokinetic and gyrofluid simulations in toroidal plasmas have demonstrated that zonal flows play a crucial role in regulating the nonlinear evolution of electrostatic drift-wave instabilities such as the ion temperature gradient (ITG) modes and, as a consequence, the level of the anomalous ion thermal transport, and that zonal flows could be spontaneously excited by ITG turbulence, suggesting parametric instability processes as the generation mechanism. Diamond et. al. have proposed the modulational instability of drift-wave turbulence ( plasmons ) in a slab-geometry treatment.

  19. Optimal trajectories for efficient atomic transport without final excitation

    E-Print Network [OSTI]

    Xi Chen; E. Torrontegui; Dionisis Stefanatos; Jr-Shin Li; J. G. Muga

    2011-08-08T23:59:59.000Z

    We design optimal harmonic-trap trajectories to transport cold atoms without final excitation, combining an inverse engineering techniqe based on Lewis-Riesenfeld invariants with optimal control theory. Since actual traps are not really harmonic, we keep the relative displacement between the center of mass and the trap center bounded. Under this constraint, optimal protocols are found according to different physical criteria. The minimum time solution has a "bang-bang" form, and the minimum displacement solution is of "bang-off-bang" form. The optimal trajectories for minimizing the transient energy are also discussed.

  20. Properties of excited states in {sup 77}Ge.

    SciTech Connect (OSTI)

    Kay, B. P.; Chiara, C. J.; Schiffer, J. P.; Kondev, F. G.; Zhu, S.; Carpenter, M. P.; Janssens, R. V. F.; Lauritsen, T.; Lister, C. J.; McCutchan, E. A.; Seweryniak, D.; Stefanescu, I.; Univ. of Maryland; Horia-Hulubei National Inst. for Physics and Nuclear Engineering

    2009-07-01T23:59:59.000Z

    The nucleus {sup 77}Ge was studied through the {sup 76}Ge({sup 13}C,{sup 12}C){sup 77}Ge reaction at a sub-Coulomb energy. The angular distributions of rays depopulating excited states in {sup 77}Ge were measured in order to constrain spin and parity assignments. Some of these assignments are of use in connection with neutrinoless double beta decay, where the population of states near the Fermi surface of {sup 76}Ge was recently explored using transfer reactions.

  1. Spectrum of surface plasmons excited by spontaneous quantum dot transitions

    SciTech Connect (OSTI)

    Andrianov, E. S., E-mail: andrianov.es@mipt.ru; Pukhov, A. A., E-mail: pukhov@mail.ru; Dorofeenko, A. V.; Vinogradov, A. P. [Russian Academy of Sciences, Institute of Theoretical and Applied Electrodynamics (Russian Federation)] [Russian Academy of Sciences, Institute of Theoretical and Applied Electrodynamics (Russian Federation); Lisyansky, A. A. [Queens College of the City University of New York, Department of Physics (United States)] [Queens College of the City University of New York, Department of Physics (United States)

    2013-08-15T23:59:59.000Z

    We consider quantum fluctuations of near fields of a quantum emitter (two-level system (TLS) with population inversion sustained by incoherent pumping) in the near-field zone of a plasmon (metallic) nanoparticle. The spectrum of surface plasmons excited by spontaneous transitions in the quantum emitter is obtained below the lasing threshold of such a system (spaser) in the approximation of a small number of plasmons. It is shown that the relaxation rate is the sum of the quantum emitter's rates of relaxation to its thermal reservoir and the plasmon cavity. The resulting dependence of the average number of plasmons on the pump intensity indicates the nonthreshold nature of the process.

  2. First observation of excited states in {sup 182}Pb.

    SciTech Connect (OSTI)

    Jenkins, D. G.; Muikku, M.; Greenlees, P. T.; Hauschild, K.; Helarjutta, K.; Jones, P. M.; Julin, R.; Juutinen, S.; Kankaanpaa, H.; Kelsall, N. S.; Kettunen, H.; Kuusiniemi, P.; Leino, M.; Moore, C. J.; Nieminen, P.; O'Leary, C. D.; Page, R. D.; Rakhila, P.; Reviol, W.; Taylor, M. J.; Uusitalo, J.; Wadsworth, R.; Physics; Univ. of York; Univ. of Jyvaskyla; CEA Saclay; Univ. of Liverpool; Univ. of Tennessee

    2000-01-01T23:59:59.000Z

    Excited states in the light lead nucleus, {sup 182}Pb, have been observed for the first time, by means of the recoil-decay tagging technique. A rotational band has been observed which has features in common with bands attributed to a prolate configuration in the heavier neutron deficient lead nuclei, {sup 184-188}Pb. A variable moment of inertia fit to the states in this band suggests that the prolate minimum has risen significantly in energy compared to the next even lead nucleus, {sup 184}Pb. This constitutes firm evidence for the minimization of this configuration with respect to the spherical ground state around N=103.

  3. Excited-Nucleon Spectroscopy with 2+1 Fermion Flavors

    SciTech Connect (OSTI)

    Cohen, Saul; Foley, Justin; Morningstar, Colin; Wong, Ricky; Edwards, Robert G; Joo, Balint; Richards, David G; Juge, Jimmy; Lin, Huey-Lin; Mathur, Nilmani; Peardon, Micheal J

    2010-01-01T23:59:59.000Z

    We present progress made by the Hadron Spectrum Collaboration (HSC) in determining the tower of excited nucleon states using 2+1-flavor anisotropic clover lattices. The HSC has been investigating interpolating operators projected into irreducible representations of the cubic group in order to better calculate two-point correlators for nucleon spectroscopy; results are published for quenched and 2-flavor anisotropic Wilson lattices. In this work, we present the latest results using a new technique, distillation, which allows us to reach higher statistics than before. Future directions will be outlined at the end.

  4. Excited nucleon spectrum from lattice QCD with maximum entropy method

    E-Print Network [OSTI]

    K. Sasaki; S. Sasaki; T. Hatsuda; M. Asakawa

    2003-09-29T23:59:59.000Z

    We study excited states of the nucleon in quenched lattice QCD with the spectral analysis using the maximum entropy method. Our simulations are performed on three lattice sizes $16^3\\times 32$, $24^3\\times 32$ and $32^3\\times 32$, at $\\beta=6.0$ to address the finite volume issue. We find a significant finite volume effect on the mass of the Roper resonance for light quark masses. After removing this systematic error, its mass becomes considerably reduced toward the direction to solve the level order puzzle between the Roper resonance $N'(1440)$ and the negative-parity nucleon $N^*(1535)$.

  5. 3D-Printed Car by Local Motors- The Strati

    Broader source: Energy.gov [DOE]

    A timelapse video of the production process behind The Strati - the 3D-printed car by Local Motors, which manufactured with Oak Ridge National Laboratory (ORNL) and delivered at the International Manufacturing Technology Show (IMTS) in September of 2014.

  6. administered selected subtherapeutic: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Net Shaping (LENS Processes and Systems Prof. J.S. Colton GIT 2009 20 12;3D Printing Process (Soligen) ME 6222: Manufacturing Processes and Systems Prof. J.S. Colton...

  7. activity electronic resource: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    their use in preservation; the fact they don't go out of print; their ability to support distance learning; and their potential to provide users with access 247. Jai Karan;...

  8. al modelado 3d: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Michael 72 ILLUSTRATING MATHEMATICS USING 3D PRINTERS CiteSeer Summary: Abstract. 3D printing technology can help to visualize proofs in mathematics. In this document we aim to...

  9. antibiotic ramoplanin illustrates: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NOAA, 7 32 ILLUSTRATING MATHEMATICS USING 3D PRINTERS CiteSeer Summary: Abstract. 3D printing technology can help to visualize proofs in mathematics. In this document we aim to...

  10. alloy phases committee: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Search Committee, Dean of the Henry Samueli School Rose, Michael R. 37 Liquid Phase 3D Printing for Quickly Manufacturing Metal Objects with Low Melting Point Alloy Ink CERN...

  11. ancient greek lead: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: , as it may lead to the physical replication of the object by means of 3D printing 6. This has become clearqp: A Tool for Generating 3D Models of Ancient Greek...

  12. artificial limbs: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Brain Control for Artificial Limbs - Businessweek Related How About Them Gams: 3D Printing Custom Legs When Jan Scheuermann grasped a chocolate bar and raised it to her mouth...

  13. alexandra zum felde: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 21 Hot Melt Inks for 3D Printing Veronika Chovancova*, Alexandra Pekarovicova* and Paul D. Fleming III Engineering...

  14. alamos crestone project: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    cover story LOS ALAMOS, N.M., Feb. 27, 2013--The print issue of Los Alamos National Laboratory scientist A. Park Williams and partners from the U.S. Geological Survey 4 Los...

  15. assessment program volume: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (Print) ISSN 2046-4924 (Online) Impact factor: 5.116 Health Technology AssessmentHEALTH TECHNOLOGY ASSESSMENT VOLUME 18 ISSUE 68 NOVEMBER 2014 ISSN 1366-5278 DOI 10.3310...

  16. aime suurpere peep: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Agent-Based Web Service Selection, Composition and Analysis through NO-7491 Trondheim Norway Dr.Ing. Thesis 2006:21 ISBN 82-471-7783-8 (printed) ISBN 82 in information systems....

  17. Printed Low Power Amperometric Gas Sensors Employing RF Energy Harvesting

    E-Print Network [OSTI]

    Hochberg, Michael

    Printed Low Power Amperometric Gas Sensors Employing RF Energy Harvesting M. T. Cartera , J. R Seattle, WA 98195-2350, USA We will report on some new types of low power amperometric gas sensors

  18. Direct printing of lead zirconate titanate thin films

    E-Print Network [OSTI]

    Bathurst, Stephen, 1980-

    2008-01-01T23:59:59.000Z

    Thus far, use of lead zirconate titanate (PZT) in MEMS has been limited due to the lack of process compatibility with existing MEMS manufacturing techniques. Direct printing of thin films eliminates the need for photolithographic ...

  19. archaeological pottery fragments: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Websites Summary: , as it may lead to the physical replication of the object by means of 3D printing 6. This has become clearqp: A Tool for Generating 3D Models of Ancient Greek...

  20. assail consumer safety: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    that combine a custom electronic circuit board with a digitally-fabricated (laser-cut or 3D-printed) enclosure. For each case study, the thesis describes the construction and...

  1. artillery guns: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ANGLAIS Semaine du 18 au 24 fvrier 2013 Biology and Medicine Websites Summary: posed by 3D printing of gun parts. Business Food safety - After the horse has been bolted : Horse...

  2. analysing scots pine: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 21 Plant Ecology 145: 115123, 1999. 1999 Kluwer Academic Publishers. Printed in the Netherlands. 115 Seed predation and...

  3. Civil and Environmental Engineering Print-Friendly Page

    E-Print Network [OSTI]

    Alabama in Huntsville, University of

    Civil and Environmental Engineering Print-Friendly Page Return to: Schools/ Colleges/ Departments S engineering, transportation planning, environmental systems, and geotechnical analysis. The modern civil. The Bachelor of Science in Engineering degree from the Civil and Environmental Engineering Department

  4. Active Printed Materials for Complex Self-Evolving Deformations

    E-Print Network [OSTI]

    Zhao, Wei

    We propose a new design of complex self-evolving structures that vary over time due to environmental interaction. In conventional 3D printing systems, materials are meant to be stable rather than active and fabricated ...

  5. 3D printing rises to the occasion | ornl.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3D printing rises to the occasion ORNL group shows how it's done, one layer at a time A perforated metal box produced by an Arcam 3D printer. This detailed A perforated metal box...

  6. 2013 Santa Sleigh 3D Printing Winner | GE Global Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engineers Pick Winner of 2013 Santa Sleigh 3D Printing Design Contest Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share...

  7. Beyond 3D Printing: The New Dimensions of Additive Fabrication

    E-Print Network [OSTI]

    Keating, Steven John

    Additive fabrication, often referred to as 3D printing, is the construction of objects by adding material. This stands in contrast to subtractive methods, which involve removing material by means of milling or cutting. ...

  8. artificial dura mater: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    811-828. Printed in the UK Atomistic simulation Grujicic, Mica 67 J Mater Sci (2006) 41:72327239 7232 Squeeze Infiltration Processing of Nickel Coated Carbon Fiber Reinforced...

  9. astronomical satellite galaxy: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    THE ASTROPHYSICAL JOURNAL, 524:746752, 1999 October 20 1999. The American Astronomical Society. All rights reserved. Printed in U.S.A.( Physics Websites Summary: (L X B 1.1 ...

  10. Re-Forming Mary in Seventeenth-Century Dutch Prints

    E-Print Network [OSTI]

    Auerbach, Elissa Anderson

    2009-09-02T23:59:59.000Z

    Late sixteenth- and seventeenth-century Dutch artists portrayed the Virgin Mary in an impressively diverse and iconographically complex range of themes--particularly in the easily reproducible medium of prints. Despite the ...

  11. Tungsten carbide-cobalt by Three Dimensional Printing

    E-Print Network [OSTI]

    Kelley, Andrew, III

    1998-01-01T23:59:59.000Z

    Three Dimensional Printing is an additive manufacturing process for rapid prototyping ceramic and metallic parts [Sachs, et al, 1990]. Green (not sintered) tungsten carbide-cobalt parts must have a density greater than 50% ...

  12. aluminum hlw high: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 361 CONCEPT: N-TYPE SILICON SOLAR CELLS WITH SURFACE-PASSIVATED SCREEN-PRINTED ALUMINUM-ALLOYED REAR EMITTER Renewable...

  13. arkansas pharmacists perceptions: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conversations with volunteer amateur radio operators, members of the print and broadcast media in Ft. Smith to the U.S. Congress, to local government officials in Ft. Smith and...

  14. arkansas electronic resource: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conversations with volunteer amateur radio operators, members of the print and broadcast media in Ft. Smith to the U.S. Congress, to local government officials in Ft. Smith and...

  15. american west arkansas: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conversations with volunteer amateur radio operators, members of the print and broadcast media in Ft. Smith to the U.S. Congress, to local government officials in Ft. Smith and...

  16. arkansas cotton field: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conversations with volunteer amateur radio operators, members of the print and broadcast media in Ft. Smith to the U.S. Congress, to local government officials in Ft. Smith and...

  17. arkansas radiological background: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conversations with volunteer amateur radio operators, members of the print and broadcast media in Ft. Smith to the U.S. Congress, to local government officials in Ft. Smith and...

  18. atomic bomb disaster: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conversations with volunteer amateur radio operators, members of the print and broadcast media in Ft. Smith to the U.S. Congress, to local government officials in Ft. Smith and...

  19. Printed decorative solar panels could become part of our homes...

    Open Energy Info (EERE)

    Menu You must login in order to post into this group. Latest blog post comments Dc My PhD Dissertation Focuses on This Posted: 24 Oct 2014 - 15:10 by: Dc Recent content Printed...

  20. Excitation of intense acoustic waves in hexagonal crystals

    SciTech Connect (OSTI)

    Alshits, V. I., E-mail: alshits@ns.crys.ras.ru; Bessonov, D. A.; Lyubimov, V. N. [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)] [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)

    2013-11-15T23:59:59.000Z

    Resonant excitation of an intense elastic wave using reflection of a pump wave from a free surface of hexagonal crystal is described. A resonance arises in the case of specially chosen propagation geometry where the reflecting boundary slightly deviates from symmetric orientation and the propagation direction of an intense reflected wave is close to that of an exceptional bulk wave, which satisfies the free boundary condition in unperturbed symmetric orientation. It is shown that, in crystals with elastic moduli c{sub 44}>c{sub 66}, a resonance arises when the initial boundary is chosen parallel to the hexagonal axis 6, whereas in crystals characterized by the relation c{sub 44}excited beam depends on the specific relations between the elastic moduli and can be rather significant for specially chosen crystals. Examples of crystals are presented in which the beam intensity can be increased by a factor of 5-10 at sufficiently high frequencies, with beam divergence remaining acceptable.